Trial Outcomes & Findings for A Dose Finding Study of Preladenant (SCH 420814) for the Treatment of Parkinson's Disease (PD) in Japanese Patients (P06402) (NCT NCT01294800)

NCT ID: NCT01294800

Last Updated: 2018-11-08

Results Overview

The "on" state is defined as the period of time during which a participant's symptoms of PD improve or disappear following treatment with levodopa (L-dopa) or dopamine agonists. The "off" state is defined as the period of time characterized by the return of symptoms (i..e. tremor, slowness, and rigidity) following treatment with L-dopa or dopamine agonists. Study participants reported their symptoms at half-hour intervals as "off", "on", or "asleep" on their daily diary for 3 days before randomization (baseline) and for the 3 days immediately before their Week-12 visit. The mean change from baseline in "off" time was based on a constrained longitudinal data analysis with treatment, time, and treatment-by-time interaction as fixed effects, and an unstructured covariance matrix was used to model the correlation among repeated measurements.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

450 participants

Primary outcome timeframe

Baseline and Week 12

Results posted on

2018-11-08

Participant Flow

Participant milestones

Participant milestones
Measure
Preladenant 2 mg
Participants received preladenant 2 mg taken orally twice daily (BID), one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 5 mg
Participants received preladenant 5 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 10 mg
Participants received preladenant 10 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Placebo
Participants received a placebo to preladenant tablet taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Overall Study
STARTED
111
113
113
113
Overall Study
COMPLETED
100
103
96
97
Overall Study
NOT COMPLETED
11
10
17
16

Reasons for withdrawal

Reasons for withdrawal
Measure
Preladenant 2 mg
Participants received preladenant 2 mg taken orally twice daily (BID), one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 5 mg
Participants received preladenant 5 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 10 mg
Participants received preladenant 10 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Placebo
Participants received a placebo to preladenant tablet taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Overall Study
Adverse Event
7
6
12
5
Overall Study
Subject Withdrew Consent
2
2
2
11
Overall Study
Lost to Follow-up
0
0
1
0
Overall Study
Non-compliance With Protocol
0
1
1
0
Overall Study
Did Not Meet Protocol Eligibility
2
1
1
0

Baseline Characteristics

A Dose Finding Study of Preladenant (SCH 420814) for the Treatment of Parkinson's Disease (PD) in Japanese Patients (P06402)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Preladenant 2 mg
n=111 Participants
Participants received preladenant 2 mg taken orally twice daily (BID), one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 5 mg
n=113 Participants
Participants received preladenant 5 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 10 mg
n=113 Participants
Participants received preladenant 10 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Placebo
n=113 Participants
Participants received a placebo to preladenant tablet taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Total
n=450 Participants
Total of all reporting groups
Age, Continuous
68.0 Years
STANDARD_DEVIATION 7.9 • n=93 Participants
67.6 Years
STANDARD_DEVIATION 8.3 • n=4 Participants
67.8 Years
STANDARD_DEVIATION 7.6 • n=27 Participants
65.8 Years
STANDARD_DEVIATION 9.1 • n=483 Participants
67.3 Years
STANDARD_DEVIATION 8.3 • n=36 Participants
Sex: Female, Male
Female
54 Participants
n=93 Participants
66 Participants
n=4 Participants
69 Participants
n=27 Participants
64 Participants
n=483 Participants
253 Participants
n=36 Participants
Sex: Female, Male
Male
57 Participants
n=93 Participants
47 Participants
n=4 Participants
44 Participants
n=27 Participants
49 Participants
n=483 Participants
197 Participants
n=36 Participants

PRIMARY outcome

Timeframe: Baseline and Week 12

Population: Full Analysis Set (FAS) population, which consisted of all randomized participants who received at least one dose of study treatment; had endpoint data subsequent to at least one dose of study treatment; and had baseline data for those analyses requiring baseline data.

The "on" state is defined as the period of time during which a participant's symptoms of PD improve or disappear following treatment with levodopa (L-dopa) or dopamine agonists. The "off" state is defined as the period of time characterized by the return of symptoms (i..e. tremor, slowness, and rigidity) following treatment with L-dopa or dopamine agonists. Study participants reported their symptoms at half-hour intervals as "off", "on", or "asleep" on their daily diary for 3 days before randomization (baseline) and for the 3 days immediately before their Week-12 visit. The mean change from baseline in "off" time was based on a constrained longitudinal data analysis with treatment, time, and treatment-by-time interaction as fixed effects, and an unstructured covariance matrix was used to model the correlation among repeated measurements.

Outcome measures

Outcome measures
Measure
Preladenant 2 mg
n=98 Participants
Participants received preladenant 2 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 5 mg
n=101 Participants
Participants received preladenant 5 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 10 mg
n=93 Participants
Participants received preladenant 10 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Placebo
n=90 Participants
Participants received a placebo to preladenant tablet taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Change From Baseline in Mean "Off" Time (Hours Per Day) at Week 12
-1.2 Hours/Day
Standard Deviation 2.3
-1.0 Hours/Day
Standard Deviation 2.6
-0.9 Hours/Day
Standard Deviation 2.2
-0.5 Hours/Day
Standard Deviation 3.0

PRIMARY outcome

Timeframe: Up to 14 weeks

Population: All Participants as Treated population, which included all participants who received at least one dose of study drug

An adverse event (AE) is defined as any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to this medicinal product.

Outcome measures

Outcome measures
Measure
Preladenant 2 mg
n=111 Participants
Participants received preladenant 2 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 5 mg
n=113 Participants
Participants received preladenant 5 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 10 mg
n=113 Participants
Participants received preladenant 10 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Placebo
n=113 Participants
Participants received a placebo to preladenant tablet taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Number of Participants Who Experienced an Adverse Event (AE)
53 Participants
60 Participants
69 Participants
55 Participants

PRIMARY outcome

Timeframe: Up to 12 Weeks

Population: All Participants as Treated population, which included all participants who received at least one dose of study drug

An adverse event (AE) is defined as any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to this medicinal product.

Outcome measures

Outcome measures
Measure
Preladenant 2 mg
n=111 Participants
Participants received preladenant 2 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 5 mg
n=113 Participants
Participants received preladenant 5 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 10 mg
n=113 Participants
Participants received preladenant 10 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Placebo
n=113 Participants
Participants received a placebo to preladenant tablet taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Number of Participants Who Discontinued Study Treatment Due to an AE
6 Participants
6 Participants
12 Participants
5 Participants

SECONDARY outcome

Timeframe: Up to 12 Weeks

Population: Full Analysis Set (FAS) population, which consisted of all randomized participants who received at least one dose of study treatment; had endpoint data subsequent to at least one dose of study treatment; and had baseline data for those analyses requiring baseline data.

The proportion of responders (≥30% Reduction in "Off" Time at Week 12) was analyzed using a generalized linear mixed model with baseline mean OFF time (hours/day) as a covariate and treatment-by-time interaction as a fixed effect, and an unstructured covariance matrix was used to model the correlation among repeated measurements. Responder rates for each treatment arm are presented as are differences from placebo with 95% confidence interval.

Outcome measures

Outcome measures
Measure
Preladenant 2 mg
n=110 Participants
Participants received preladenant 2 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 5 mg
n=113 Participants
Participants received preladenant 5 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 10 mg
n=110 Participants
Participants received preladenant 10 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Placebo
n=112 Participants
Participants received a placebo to preladenant tablet taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Percentage of Participants With ≥30% Reduction in "Off" Time at Week 12
34.5 Percentage of participants
34.6 Percentage of participants
24.6 Percentage of participants
28.9 Percentage of participants

SECONDARY outcome

Timeframe: Baseline and Week 12

Population: FAS population, which consisted of all randomized participants who received at least one dose of study treatment; had endpoint data subsequent to at least one dose of study treatment; and had baseline data for those analyses requiring baseline data.

When a participant is "on" without dyskinesias, parkinsonian symptoms have dissipated and the participant is experiencing no uncontrollable extraneous movements. Study participants reported their parkinsonian symptoms at half-hour intervals as "off", "on without dyskinesia", "on with non-troublesome dyskinesia", "on with troublesome dyskinesia", or "asleep" on their daily diary for 3 days before randomization and for the 3 days immediately before their Week-12 visit. The mean change from baseline in "on without troublesome dyskinesia" time was based on a constrained longitudinal data analysis with treatment, time, and treatment-by-time interaction as fixed effects, and an unstructured covariance matrix was used to model the correlation among repeated measurements.

Outcome measures

Outcome measures
Measure
Preladenant 2 mg
n=98 Participants
Participants received preladenant 2 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 5 mg
n=101 Participants
Participants received preladenant 5 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 10 mg
n=93 Participants
Participants received preladenant 10 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Placebo
n=90 Participants
Participants received a placebo to preladenant tablet taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Change From Baseline in Mean "On" Time Without Troublesome Dyskinesias (Hours Per Day) at Week 12
1.3 Hours/Day
Standard Deviation 2.5
1.0 Hours/Day
Standard Deviation 2.9
1.0 Hours/Day
Standard Deviation 2.4
0.5 Hours/Day
Standard Deviation 2.9

Adverse Events

Preladenant 2 mg

Serious events: 9 serious events
Other events: 19 other events
Deaths: 0 deaths

Preladenant 5 mg

Serious events: 5 serious events
Other events: 23 other events
Deaths: 0 deaths

Preladenant 10 mg

Serious events: 7 serious events
Other events: 25 other events
Deaths: 0 deaths

Placebo

Serious events: 3 serious events
Other events: 14 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Preladenant 2 mg
n=111 participants at risk
Participants received preladenant 2 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 5 mg
n=113 participants at risk
Participants received preladenant 5 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 10 mg
n=113 participants at risk
Participants received preladenant 10 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Placebo
n=113 participants at risk
Participants received a placebo to preladenant tablet taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Blood and lymphatic system disorders
ANAEMIA
0.00%
0/111 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.88%
1/113 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Gastrointestinal disorders
INGUINAL HERNIA
0.90%
1/111 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.88%
1/113 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Gastrointestinal disorders
LARGE INTESTINE POLYP
0.00%
0/111 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.88%
1/113 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Gastrointestinal disorders
LOWER GASTROINTESTINAL HAEMORRHAGE
0.90%
1/111 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
General disorders
GAIT DISTURBANCE
0.00%
0/111 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.88%
1/113 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.88%
1/113 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Hepatobiliary disorders
DRUG-INDUCED LIVER INJURY
0.00%
0/111 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.88%
1/113 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Infections and infestations
CELLULITIS
0.00%
0/111 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.88%
1/113 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Infections and infestations
PNEUMONIA
0.90%
1/111 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Injury, poisoning and procedural complications
FEMUR FRACTURE
0.00%
0/111 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.88%
1/113 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Injury, poisoning and procedural complications
HEAT STROKE
0.90%
1/111 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Injury, poisoning and procedural complications
SPINAL COMPRESSION FRACTURE
0.90%
1/111 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Injury, poisoning and procedural complications
ULNA FRACTURE
0.00%
0/111 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.88%
1/113 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Musculoskeletal and connective tissue disorders
JAW CYST
0.90%
1/111 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Musculoskeletal and connective tissue disorders
PAIN IN EXTREMITY
0.00%
0/111 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.88%
1/113 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
COLON CANCER
0.00%
0/111 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
1.8%
2/113 • Number of events 2 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
METASTASES TO LYMPH NODES
0.00%
0/111 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.88%
1/113 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Nervous system disorders
PARKINSON'S DISEASE
1.8%
2/111 • Number of events 2 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
1.8%
2/113 • Number of events 2 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Psychiatric disorders
IMPULSE-CONTROL DISORDER
0.00%
0/111 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.88%
1/113 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Renal and urinary disorders
CYSTITIS HAEMORRHAGIC
0.00%
0/111 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.88%
1/113 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Renal and urinary disorders
URINARY RETENTION
0.90%
1/111 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Social circumstances
ACTIVITIES OF DAILY LIVING IMPAIRED
0.00%
0/111 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.88%
1/113 • Number of events 1 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug

Other adverse events

Other adverse events
Measure
Preladenant 2 mg
n=111 participants at risk
Participants received preladenant 2 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 5 mg
n=113 participants at risk
Participants received preladenant 5 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Preladenant 10 mg
n=113 participants at risk
Participants received preladenant 10 mg taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Placebo
n=113 participants at risk
Participants received a placebo to preladenant tablet taken orally BID, one tablet in the morning and one tablet in the evening, for 12 weeks.
Gastrointestinal disorders
CONSTIPATION
2.7%
3/111 • Number of events 3 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
4.4%
5/113 • Number of events 5 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
7.1%
8/113 • Number of events 8 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
3.5%
4/113 • Number of events 4 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Infections and infestations
NASOPHARYNGITIS
4.5%
5/111 • Number of events 5 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
8.0%
9/113 • Number of events 11 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
7.1%
8/113 • Number of events 8 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
7.1%
8/113 • Number of events 10 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Injury, poisoning and procedural complications
FALL
7.2%
8/111 • Number of events 10 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
2.7%
3/113 • Number of events 3 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
6.2%
7/113 • Number of events 8 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
0.00%
0/113 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
Nervous system disorders
DYSKINESIA
2.7%
3/111 • Number of events 3 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
6.2%
7/113 • Number of events 7 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
6.2%
7/113 • Number of events 7 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug
1.8%
2/113 • Number of events 2 • Up to 14 weeks
All Participants as Treated population, which included all participants who received at least one dose of study drug

Additional Information

Senior Vice President, Global Clinical Development

Merck Sharp & Dohme Corp.

Phone: 1-800-672-6372

Results disclosure agreements

  • Principal investigator is a sponsor employee The investigator agrees to provide to the sponsor 45 days prior to submission for publication or presentation, review copies of abstracts or manuscripts for publication (including, without limitation, slides and texts of oral or other public presentations and texts of any transmission through any electronic media, eg, any computer access system such as the Internet, World Wide Web, etc) that report any results of the trial.
  • Publication restrictions are in place

Restriction type: OTHER