Trial Outcomes & Findings for Randomized, Placebo Controlled Study Of The Efficacy And Safety Of PF-02545920 In Subjects With Huntington's Disease (NCT NCT02197130)

NCT ID: NCT02197130

Last Updated: 2017-11-17

Results Overview

The UHDRS was a clinical rating scale which has been developed by the Huntington Disease Study Group (HSG) to provide a uniform assessment of the clinical features and course of Huntington's Disease (HD). The components of the full UHDRS assess motor function, cognition, behavior and functional abilities. The total motor score (TMS) assessed motor features of HD with standardized ratings of oculomotor function, dysarthria, chorea, dystonia, gait, and postural stability. Some items (such as chorea and dystonia) required grading each extremity (face, bucco-oral-lingual, and trunk) separately. Eye movements require both horizontal and vertical grades. The total motor impairment scores was the sum of all the individual 31 motor sub-items (each rated from 0 to 4), with higher scores indicating more severe motor impairment than lower scores. The range of TMS is 0-124.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

272 participants

Primary outcome timeframe

Baseline, Week 26

Results posted on

2017-11-17

Participant Flow

A total of 272 subjects (133 males and 139 females) were randomized and assigned study treatment.

Participant milestones

Participant milestones
Measure
PF-02545920 5 mg BID
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 20 mg BID
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Overall Study
STARTED
95
89
88
Overall Study
Received Treatment
95
88
87
Overall Study
COMPLETED
79
81
56
Overall Study
NOT COMPLETED
16
8
32

Reasons for withdrawal

Reasons for withdrawal
Measure
PF-02545920 5 mg BID
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 20 mg BID
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Overall Study
Adverse Event
13
4
23
Overall Study
Death
0
1
0
Overall Study
Lost to Follow-up
2
0
1
Overall Study
Does not meet entrance criteria
0
0
1
Overall Study
Withdrawal by Subject
0
3
4
Overall Study
Other
1
0
3

Baseline Characteristics

Randomized, Placebo Controlled Study Of The Efficacy And Safety Of PF-02545920 In Subjects With Huntington's Disease

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
PF-02545920 5 mg BID
n=95 Participants
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
n=88 Participants
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 20 mg BID
n=87 Participants
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Total
n=270 Participants
Total of all reporting groups
Age, Continuous
48.3 years
STANDARD_DEVIATION 8.6 • n=5 Participants
50.2 years
STANDARD_DEVIATION 9.4 • n=7 Participants
48.4 years
STANDARD_DEVIATION 9.2 • n=5 Participants
48.9 years
STANDARD_DEVIATION 9.1 • n=4 Participants
Sex: Female, Male
Female
42 Participants
n=5 Participants
54 Participants
n=7 Participants
43 Participants
n=5 Participants
139 Participants
n=4 Participants
Sex: Female, Male
Male
53 Participants
n=5 Participants
34 Participants
n=7 Participants
44 Participants
n=5 Participants
131 Participants
n=4 Participants

PRIMARY outcome

Timeframe: Baseline, Week 26

Population: All participants who have been randomized and have taken at least one dose of PF-02545920 or placebo. Participants without post-dose measurements did not contribute to the analysis, except in the description of the baseline values.

The UHDRS was a clinical rating scale which has been developed by the Huntington Disease Study Group (HSG) to provide a uniform assessment of the clinical features and course of Huntington's Disease (HD). The components of the full UHDRS assess motor function, cognition, behavior and functional abilities. The total motor score (TMS) assessed motor features of HD with standardized ratings of oculomotor function, dysarthria, chorea, dystonia, gait, and postural stability. Some items (such as chorea and dystonia) required grading each extremity (face, bucco-oral-lingual, and trunk) separately. Eye movements require both horizontal and vertical grades. The total motor impairment scores was the sum of all the individual 31 motor sub-items (each rated from 0 to 4), with higher scores indicating more severe motor impairment than lower scores. The range of TMS is 0-124.

Outcome measures

Outcome measures
Measure
PF-02545920 20 mg BID
n=59 Participants
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 5 mg BID
n=83 Participants
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
n=80 Participants
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Change From Baseline in the Total Motor Score (TMS) Assessment of the Unified Huntington Disease Rating Scale (UHDRS) After 26 Weeks of Treatment.
0.4 units on a scale
Standard Deviation 8.63
-0.8 units on a scale
Standard Deviation 7.30
-1.4 units on a scale
Standard Deviation 6.67

SECONDARY outcome

Timeframe: Screening, Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)

Population: All participants with at least one dose of study medication.

The criteria for temporary study suspension was as follow: Criterion A: WBC count \<=3000 cells/mm3 but \>= 2000 cells/mm3 or ANC \<= 1500 cells/mm3 but \>= 1000 cells/mm3; Criterion B: WBC \<= 2000 cells/mm3 or ANC \<= 1000 cells/mm3; Criterion C: participants who are discontinued or permanently suspended due to WBC or ANC findings; Criterion D: ANC \<= 500 cells/mm3

Outcome measures

Outcome measures
Measure
PF-02545920 20 mg BID
n=87 Participants
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 5 mg BID
n=95 Participants
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
n=88 Participants
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Number of Participants That Met White Blood Count (WBC) and Absolute Neutrophil Count (ANC) Stopping Criteria
Criterion A
0 participants
8.63
1 participants
7.30
0 participants
6.67
Number of Participants That Met White Blood Count (WBC) and Absolute Neutrophil Count (ANC) Stopping Criteria
Criterion B
0 participants
0 participants
0 participants
Number of Participants That Met White Blood Count (WBC) and Absolute Neutrophil Count (ANC) Stopping Criteria
Criterion C
0 participants
0 participants
0 participants
Number of Participants That Met White Blood Count (WBC) and Absolute Neutrophil Count (ANC) Stopping Criteria
Criterion D
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)

Population: All participants with at least one dose of study medication.

Adverse event (AE) was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship.

Outcome measures

Outcome measures
Measure
PF-02545920 20 mg BID
n=87 Participants
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 5 mg BID
n=95 Participants
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
n=88 Participants
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Number of Participants With Adverse Events
76 participants
8.63
82 participants
7.30
63 participants
6.67

SECONDARY outcome

Timeframe: Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)

Population: All participants with at least one dose of study medication.

Adverse event (AE) was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. An serious adverse event (SAE) was an AE resulting in any of the following outcomes or deemed significant for any other reason: death, initial or prolonged inpatient hospitalization, life-threatening experience (immediate risk of dying), persistent or significant disability or incapacity, congenital anomaly.

Outcome measures

Outcome measures
Measure
PF-02545920 20 mg BID
n=87 Participants
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 5 mg BID
n=95 Participants
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
n=88 Participants
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Number of Participants With Serious Adverse Events
8 participants
8.63
2 participants
7.30
7 participants
6.67

SECONDARY outcome

Timeframe: Screening, Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)

Population: All participants with at least one dose of study medication.

Following parameters were analyzed for laboratory examination: hematology (hemoglobin, hematocrit, red blood cell count, platelet count, white blood cell count, total neutrophils, eosinophils, monocytes, basophils, lymphocytes);coagulation (PT international ratio); liver function (total bilirubin, direct bilirubin, indirect bilirubin, aspartate aminotransferase, alanine aminotransferase, gamma GT, LDH, alkaline phosphatase, total protein, albumin); renal function (blood urea nitrogen, creatinine, uric acid); electrolytes (calcium, sodium, potassium, chloride, total bicarbonate, magnesium, phosphate); clinical chemistry (glucose, glycosylated, hemoglobin, human chorionic gonadotropin, creatine kinase); urinalysis (decimal logarithm of reciprocal of hydrogen ion activity \[pH\], urine specific gravity, glucose, protein, blood, ketones, nitrite).

Outcome measures

Outcome measures
Measure
PF-02545920 20 mg BID
n=86 Participants
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 5 mg BID
n=95 Participants
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
n=88 Participants
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Number of Participants With Laboratory Test Abnormalities (Without Regard to Baseline Abnormalities)
47 participants
8.63
46 participants
7.30
48 participants
6.67

SECONDARY outcome

Timeframe: Screening, Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)

Population: All participants with at least one dose of study medication.

Following parameters were analyzed for laboratory examination: hematology (hemoglobin, hematocrit, red blood cell count, platelet count, white blood cell count, total neutrophils, eosinophils, monocytes, basophils, lymphocytes);coagulation (PT international ratio); liver function (total bilirubin, direct bilirubin, indirect bilirubin, aspartate aminotransferase, alanine aminotransferase, gamma GT, LDH, alkaline phosphatase, total protein, albumin); renal function (blood urea nitrogen, creatinine, uric acid); electrolytes (calcium, sodium, potassium, chloride, total bicarbonate, magnesium, phosphate); clinical chemistry (glucose, glycosylated, hemoglobin, human chorionic gonadotropin, creatine kinase); urinalysis (decimal logarithm of reciprocal of hydrogen ion activity \[pH\], urine specific gravity, glucose, protein, blood, ketones, nitrite).

Outcome measures

Outcome measures
Measure
PF-02545920 20 mg BID
n=86 Participants
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 5 mg BID
n=95 Participants
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
n=88 Participants
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Number of Participants With Laboratory Test Abnormalities (With Normal Baseline)
40 participants
8.63
36 participants
7.30
41 participants
6.67

SECONDARY outcome

Timeframe: Screening, Day 1, 28, 91, and 182

Population: All participants with at least one dose of study medication.

Absolute values were analyzed for supine systolic blood pressure (SBP), standing SBP, supine diastolic blood pressure (DBP), standing DBP, supine pulse rate, and standing pulse rate. Number of participants with vital signs data meeting the following criteria was reported: Criterion A: supine SBP less than (\<) 90 millimeter of mercury(mmHg); Criterion B: standing SBP \< 90 mmHg; Criterion C: supine DBP \<50 mmHg; Criterion D: standing DBP \<50 mmHg; Criterion E: supine pulse rate \< 40 beats per minute(BPM); Criterion F: supine pulse rate greater than (\>)120 BPM; Criterion G: standing pulse rate \< 40 beats per minute(BPM); Criterion H: standing pulse rate \>120 BPM;

Outcome measures

Outcome measures
Measure
PF-02545920 20 mg BID
n=87 Participants
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 5 mg BID
n=95 Participants
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
n=88 Participants
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Number of Participants With Vital Sign Data That Met Criteria for Potential Clinical Concern (Absolute Values)
Criterion A
1 participants
8.63
0 participants
7.30
0 participants
6.67
Number of Participants With Vital Sign Data That Met Criteria for Potential Clinical Concern (Absolute Values)
Criterion B
3 participants
2 participants
3 participants
Number of Participants With Vital Sign Data That Met Criteria for Potential Clinical Concern (Absolute Values)
Criterion C
2 participants
1 participants
1 participants
Number of Participants With Vital Sign Data That Met Criteria for Potential Clinical Concern (Absolute Values)
Criterion D
1 participants
3 participants
0 participants
Number of Participants With Vital Sign Data That Met Criteria for Potential Clinical Concern (Absolute Values)
Criterion E
0 participants
0 participants
0 participants
Number of Participants With Vital Sign Data That Met Criteria for Potential Clinical Concern (Absolute Values)
Criterion F
0 participants
0 participants
1 participants
Number of Participants With Vital Sign Data That Met Criteria for Potential Clinical Concern (Absolute Values)
Criterion G
0 participants
0 participants
0 participants
Number of Participants With Vital Sign Data That Met Criteria for Potential Clinical Concern (Absolute Values)
Criterion H
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Screening, Day 1, 28, 91, and 182

Population: All participants with at least one dose of study medication.

The number of participants with vital signs data of maximum increase from baseline meeting the following criteria was reported: Criterion A: maximum increase from baseline in supine SBP greater than or equal to (\>=) 30 mmHg; Criterion B: maximum increase from baseline in standing SBP \>= 30 mmHg; Criterion C: maximum increase from baseline in supine DBP \>=20 mmHg; Criterion D: maximum increase from baseline in standing DBP \>=20 mmHg

Outcome measures

Outcome measures
Measure
PF-02545920 20 mg BID
n=87 Participants
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 5 mg BID
n=95 Participants
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
n=88 Participants
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Number of Participants With Vital Sign Data That Met Criteria for Potential Clinical Concern (Increase From Baseline)
Criterion A
4 participants
8.63
1 participants
7.30
4 participants
6.67
Number of Participants With Vital Sign Data That Met Criteria for Potential Clinical Concern (Increase From Baseline)
Criterion B
7 participants
8 participants
6 participants
Number of Participants With Vital Sign Data That Met Criteria for Potential Clinical Concern (Increase From Baseline)
Criterion C
3 participants
3 participants
10 participants
Number of Participants With Vital Sign Data That Met Criteria for Potential Clinical Concern (Increase From Baseline)
Criterion D
3 participants
8 participants
9 participants

SECONDARY outcome

Timeframe: Screening, Day 1, 28, 91, and 182

Population: All participants with at least one dose of study medication.

The number of participants with vital signs data of maximum decrease from baseline meeting the following criteria was reported: Criterion A: maximum decrease from baseline in supine SBP \>= 30 mmHg; Criterion B: maximum decrease from baseline in standing SBP \>= 30 mmHg; Criterion C: maximum decrease from baseline in supine DBP \>=20 mmHg; Criterion D: maximum decrease from baseline in standing DBP \>=20 mmHg

Outcome measures

Outcome measures
Measure
PF-02545920 20 mg BID
n=87 Participants
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 5 mg BID
n=95 Participants
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
n=88 Participants
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Number of Participants With Vital Sign Data That Met Criteria for Potential Clinical Concern (Decrease From Baseline)
Criterion A
1 participants
8.63
7 participants
7.30
3 participants
6.67
Number of Participants With Vital Sign Data That Met Criteria for Potential Clinical Concern (Decrease From Baseline)
Criterion B
9 participants
8 participants
9 participants
Number of Participants With Vital Sign Data That Met Criteria for Potential Clinical Concern (Decrease From Baseline)
Criterion C
8 participants
6 participants
8 participants
Number of Participants With Vital Sign Data That Met Criteria for Potential Clinical Concern (Decrease From Baseline)
Criterion D
10 participants
14 participants
9 participants

SECONDARY outcome

Timeframe: Screening, Day 1, 28, 91, and 182

Population: All participants with at least one dose of study medication.

The number of participants with ECG absolute values meeting the following criteria was reported: Criterion A: maximum PR interval (time from the beginning of P wave to the start of QRS complex, corresponding to the end of atrial depolarization and onset of ventricular depolarization) \>=300 msec; Criterion B: maximum QRS complex(time from Q wave to the end of S wave, corresponding to ventricle depolarization) \>=140 msec; Criterion C: maximum QTcF interval (time from the beginning of Q wave to the end of T wave corresponding to electrical systole, corrected for heart rate using Fridericia's formula) 450-\<480 msec; Criterion D: maximum QTcF interval 480-\<500 msec; Criterion E: maximum QTcF interval (Fridericia's correction) \>=500 msec

Outcome measures

Outcome measures
Measure
PF-02545920 20 mg BID
n=86 Participants
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 5 mg BID
n=93 Participants
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
n=88 Participants
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Number of Participants With Electrocardiogram (ECG) Data That Met Criteria for Potential Clinical Concern(Absolute Values)
Criterion C
5 participants
2 participants
7 participants
Number of Participants With Electrocardiogram (ECG) Data That Met Criteria for Potential Clinical Concern(Absolute Values)
Criterion D
0 participants
0 participants
0 participants
Number of Participants With Electrocardiogram (ECG) Data That Met Criteria for Potential Clinical Concern(Absolute Values)
Criterion E
0 participants
0 participants
0 participants
Number of Participants With Electrocardiogram (ECG) Data That Met Criteria for Potential Clinical Concern(Absolute Values)
Criterion A
0 participants
8.63
0 participants
7.30
0 participants
6.67
Number of Participants With Electrocardiogram (ECG) Data That Met Criteria for Potential Clinical Concern(Absolute Values)
Criterion B
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Screening, Day 1, 28, 91, and 182

Population: All participants with at least one dose of study medication.

Number of participants with ECG meeting the following criteria was reported: Criterion A: maximum PR interval increase from baseline percentage change (PctChg)\>= 25/50%; Criterion B: maximum QRS complex increase from baseline PctChg \>=50%; Criterion C: maximum QTcF interval (Fridericia's correction) increase from baseline 30\<=change\<60 msec; Criterion D: maximum QTcF interval (Fridericia's correction) increase from baseline change \>=60 msec.

Outcome measures

Outcome measures
Measure
PF-02545920 20 mg BID
n=86 Participants
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 5 mg BID
n=93 Participants
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
n=88 Participants
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Number of Participants With Electrocardiogram (ECG) Data That Met Criteria for Potential Clinical Concern(Increase From Baseline)
Criterion A
0 participants
8.63
0 participants
7.30
0 participants
6.67
Number of Participants With Electrocardiogram (ECG) Data That Met Criteria for Potential Clinical Concern(Increase From Baseline)
Criterion B
0 participants
0 participants
0 participants
Number of Participants With Electrocardiogram (ECG) Data That Met Criteria for Potential Clinical Concern(Increase From Baseline)
Criterion C
4 participants
4 participants
6 participants
Number of Participants With Electrocardiogram (ECG) Data That Met Criteria for Potential Clinical Concern(Increase From Baseline)
Criterion D
1 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)

Population: All participants with at least one dose of study medication.

Adverse event (AE) was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. AE was assessed according to severity; mild (not causing any significant problem, dose adjustment not required), moderate (caused problem that does not interfere significantly with usual activities or the clinical status, dose adjustment needed due to adverse event) and severe (caused problem that interferes significantly with usual activities or the clinical status, study drug stopped due to adverse event). EPS were reported AEs of dystonia and akathisia.

Outcome measures

Outcome measures
Measure
PF-02545920 20 mg BID
n=87 Participants
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 5 mg BID
n=95 Participants
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
n=88 Participants
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Severity of Adverse Events Related to Extrapyramidal Symptoms (EPS) Including Dystonia and Akathisia
Akathisia(Moderate)
2 participants
1 participants
0 participants
Severity of Adverse Events Related to Extrapyramidal Symptoms (EPS) Including Dystonia and Akathisia
Dystonia(Moderate)
0 participants
0 participants
0 participants
Severity of Adverse Events Related to Extrapyramidal Symptoms (EPS) Including Dystonia and Akathisia
Dystonia(Mild)
0 participants
8.63
0 participants
7.30
0 participants
6.67
Severity of Adverse Events Related to Extrapyramidal Symptoms (EPS) Including Dystonia and Akathisia
Dystonia(Severe)
1 participants
0 participants
0 participants
Severity of Adverse Events Related to Extrapyramidal Symptoms (EPS) Including Dystonia and Akathisia
Akathisia(Mild)
1 participants
2 participants
0 participants
Severity of Adverse Events Related to Extrapyramidal Symptoms (EPS) Including Dystonia and Akathisia
Akathisia(Severe)
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Baseline, Week 13, Week 26

Population: All participants who have been randomized and have taken at least one dose of PF-02545920 or placebo. Participants without post-dose measurements did not contribute to the analysis, except in the description of the baseline values.

The UHDRS was a clinical rating scale which has been developed by the Huntington Disease Study Group (HSG) to provide a uniform assessment of the clinical features and course of HD. The components of the full UHDRS assess motor function, cognition, behavior and functional abilities. The Total Maximum Chorea (TMC) was a subset of the TMS assessment. It was composed of the scoring of 7 chorea assessments (face, orobuccolingual, trunk, right and left upper extremities, right and left lower extremities). Each assessment was rated from 0 to 4 (absent to prolonged). TMC is obtained by adding up each of the separate scores, leading to max score of 28. The minimum score is 0. The higher the score, the worse the symptoms. n is the number of evaluable subjects in each visit.

Outcome measures

Outcome measures
Measure
PF-02545920 20 mg BID
n=84 Participants
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 5 mg BID
n=95 Participants
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
n=88 Participants
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Change From Baseline in the Total Maximum Chorea (TMC) Score of the UHDRS After 13 and 26 Weeks of Treatment.
Week 13
1.1 units on a scale
Standard Deviation 3.92
-0.2 units on a scale
Standard Deviation 3.50
-0.9 units on a scale
Standard Deviation 2.56
Change From Baseline in the Total Maximum Chorea (TMC) Score of the UHDRS After 13 and 26 Weeks of Treatment.
Week 26
0.7 units on a scale
Standard Deviation 3.81
-0.4 units on a scale
Standard Deviation 2.84
-0.8 units on a scale
Standard Deviation 2.79

SECONDARY outcome

Timeframe: Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)

Population: All participants with at least one dose of study medication.n is the number of evaluable participants in each visit

The C-SSRS captured the occurrence, severity, and frequency of suicide-related thoughts and behaviors during the assessment period. C-SSRS assessed whether participant experienced following: completed suicide; suicide attempt; preparatory acts towards imminent suicidal behavior; suicidal ideation; self-injurious behavior, no suicidal intent. The results presented are the number of participants with completed suicide or non-fatal suicide events or behaviors. Worsening of suicidal ideation was an increase in severity of suicidal ideation from baseline.

Outcome measures

Outcome measures
Measure
PF-02545920 20 mg BID
n=87 Participants
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 5 mg BID
n=95 Participants
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
n=88 Participants
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Number of Participants With Suicidal Ideation or Suicidal Behavior as Assessed by the Columbia Suicide Severity Rating Scale (C-SSRS) From Baseline to Follow-up Visit
Completed Suicide
0 participants
8.63
0 participants
7.30
0 participants
6.67
Number of Participants With Suicidal Ideation or Suicidal Behavior as Assessed by the Columbia Suicide Severity Rating Scale (C-SSRS) From Baseline to Follow-up Visit
Suicide Attempt
1 participants
0 participants
0 participants
Number of Participants With Suicidal Ideation or Suicidal Behavior as Assessed by the Columbia Suicide Severity Rating Scale (C-SSRS) From Baseline to Follow-up Visit
Imminent Suicidal Behavior
1 participants
1 participants
0 participants
Number of Participants With Suicidal Ideation or Suicidal Behavior as Assessed by the Columbia Suicide Severity Rating Scale (C-SSRS) From Baseline to Follow-up Visit
Suicidal Ideation
7 participants
5 participants
4 participants
Number of Participants With Suicidal Ideation or Suicidal Behavior as Assessed by the Columbia Suicide Severity Rating Scale (C-SSRS) From Baseline to Follow-up Visit
Self-Injurious Behavior, No Suicidal Attempt
1 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Week 13 & Week 26

Population: All participants who have been randomized and have taken at least one dose of PF-02545920 or placebo. Participants without post-dose measurements will not contribute to the analysis, except in the description of the baseline values.

CGI-I: 7-point clinician rated scale ranging from 1 (very much improved) to 7 (very much worse). Clinician responded to a question: "Compared to your subject's condition at the beginning of treatment, how much has your subject changed?". Improvement was compared to baseline and was defined as a score of 1 (very much improved), 2 (much improved), or 3 (minimally improved) on the scale. Higher score = more affected. n is the number of evaluable participants in each visit.

Outcome measures

Outcome measures
Measure
PF-02545920 20 mg BID
n=84 Participants
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 5 mg BID
n=95 Participants
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
n=88 Participants
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Clinical Global Impression of Improvement (CGI-I) Scale Score After 13 and 26 Weeks of Treatment.
Week 13
4.0 units on a scale
Standard Deviation 1.00
3.7 units on a scale
Standard Deviation 0.90
3.6 units on a scale
Standard Deviation 0.83
Clinical Global Impression of Improvement (CGI-I) Scale Score After 13 and 26 Weeks of Treatment.
Week 26
3.9 units on a scale
Standard Deviation 1.13
3.8 units on a scale
Standard Deviation 0.99
3.8 units on a scale
Standard Deviation 0.91

Adverse Events

PF-02545920 5 mg BID

Serious events: 2 serious events
Other events: 71 other events
Deaths: 0 deaths

Placebo

Serious events: 7 serious events
Other events: 42 other events
Deaths: 0 deaths

PF-02545920 20 mg BID

Serious events: 8 serious events
Other events: 65 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
PF-02545920 5 mg BID
n=95 participants at risk
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
n=88 participants at risk
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 20 mg BID
n=87 participants at risk
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Infections and infestations
Pneumonia
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Cardiac disorders
Atrial fibrillation
1.1%
1/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Gastrointestinal disorders
Diarrhoea
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
General disorders
General physical health deterioration
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
2.3%
2/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Infections and infestations
Clostridium difficile colitis
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Infections and infestations
Urinary tract infection
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Injury, poisoning and procedural complications
Fall
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Injury, poisoning and procedural complications
Head injury
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Injury, poisoning and procedural complications
Rib fracture
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Investigations
Weight decreased
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Musculoskeletal and connective tissue disorders
Back pain
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Pancreatic carcinoma
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Nervous system disorders
Syncope
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Nervous system disorders
Vestibular migraine
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Product Issues
Device occlusion
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Psychiatric disorders
Acute stress disorder
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Psychiatric disorders
Agitation
1.1%
1/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Psychiatric disorders
Anxiety
1.1%
1/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Psychiatric disorders
Major depression
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
2.3%
2/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Psychiatric disorders
Suicidal behaviour
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Psychiatric disorders
Suicidal ideation
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Psychiatric disorders
Suicide attempt
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Respiratory, thoracic and mediastinal disorders
Asphyxia
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.

Other adverse events

Other adverse events
Measure
PF-02545920 5 mg BID
n=95 participants at risk
Participants took 4 tablets packaged in blister packs (3 placebo tablets and one 5 mg PF-02545920) twice a day approximately every 12 hours from Baseline Day 1 (V2) to Week 26 (V9), at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Placebo
n=88 participants at risk
Participants took 4 tablets of placebo packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
PF-02545920 20 mg BID
n=87 participants at risk
The 20 mg BID dose of PF-02545920 was titrated as follows: 5 mg BID for 7 days, 10 mg BID for 7 days, 15 mg BID for 7 days, then 20 mg BID for the remainder of the treatment phase. Participants took 4 tablets packaged in blister packs twice a day approximately every 12 hours, at approximately the same time of day throughout the study. The blister packs contained 3 placebo tablets and one 5 mg PF-02545920 tablet for Days 1-7, 2 placebo tablets and two 5 mg PF-02545920 tablets for Days 8-14, 1 placebo tablet and three 5 mg PF-02545920 tablets for Days 15-21, and four 5 mg PF-02545920 tablets from Day 22 through Day 182. Study medication was swallowed whole, and was not manipulated or chewed prior to swallowing.
Gastrointestinal disorders
Diarrhoea
7.4%
7/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
6.8%
6/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
8.0%
7/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Gastrointestinal disorders
Dry mouth
1.1%
1/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
6.9%
6/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Gastrointestinal disorders
Nausea
12.6%
12/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
8.0%
7/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
12.6%
11/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Gastrointestinal disorders
Vomiting
10.5%
10/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
3.4%
3/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
8.0%
7/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
General disorders
Fatigue
11.6%
11/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
10.2%
9/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
18.4%
16/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Infections and infestations
Nasopharyngitis
18.9%
18/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
13.6%
12/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
9.2%
8/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Infections and infestations
Urinary tract infection
5.3%
5/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
3.4%
3/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
4.6%
4/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Injury, poisoning and procedural complications
Fall
15.8%
15/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
10.2%
9/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
5.7%
5/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Investigations
Weight decreased
6.3%
6/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
17.2%
15/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Musculoskeletal and connective tissue disorders
Arthralgia
3.2%
3/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
5.7%
5/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
2.3%
2/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Nervous system disorders
Chorea
4.2%
4/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
9.2%
8/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Nervous system disorders
Dizziness
1.1%
1/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
4.5%
4/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
11.5%
10/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Nervous system disorders
Dyskinesia
0.00%
0/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
10.3%
9/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Nervous system disorders
Headache
8.4%
8/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
9.1%
8/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
9.2%
8/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Nervous system disorders
Sedation
5.3%
5/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
0.00%
0/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
2.3%
2/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Nervous system disorders
Somnolence
9.5%
9/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
3.4%
3/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
18.4%
16/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Psychiatric disorders
Anxiety
6.3%
6/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
2.3%
2/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
13.8%
12/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Psychiatric disorders
Insomnia
4.2%
4/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
2.3%
2/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
12.6%
11/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
Psychiatric disorders
Irritability
7.4%
7/95 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/88 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.
1.1%
1/87 • Day 1, 7, 14, 28, 56, 91, 133, 182 and follow-up visits (from Day 189 to 192)
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as non-serious in another participant, or one participant may have experienced both a serious and non-serious event during the study.

Additional Information

Pfizer ClinicalTrials.gov Call Center

Pfizer, Inc.

Phone: 18007181021

Results disclosure agreements

  • Principal investigator is a sponsor employee Pfizer has the right to review disclosures, requesting a delay of less than 60 days. Investigator will postpone single center publications until after disclosure of pooled data (all sites), less than 12 months from study completion/termination at all participating sites. Investigator may not disclose previously undisclosed confidential information other than study results.
  • Publication restrictions are in place

Restriction type: OTHER