Trial Outcomes & Findings for PF-07321332/Ritonavir and Ritonavir on Dabigatran Study in Healthy Participants (NCT NCT05064800)

NCT ID: NCT05064800

Last Updated: 2024-03-29

Results Overview

Cmax was defined as maximum observed plasma concentration.

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

24 participants

Primary outcome timeframe

Treatment 1 Day 1 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-dose. Treatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-dose

Results posted on

2024-03-29

Participant Flow

A total of 24 participants were enrolled into the study, and 4 participants were assigned to each of the 6 sequences to receive following treatments: Treatment 1: dabigatran 75 mg orally (PO) single dose Treatment 2: PF-07321332/ritonavir 300 mg/100 mg PO q12h for 2 days + dabigatran 75 mg PO single dose on Day 2 Treatment 3: ritonavir 100 mg PO q12h for 2 days + dabigatran 75 mg PO single dose on Day 2

Participant milestones

Participant milestones
Measure
Dabigatran 75mg=>PF-07321332 300mg+Ritonavir 100mg+Dabigatran 75mg=>Ritonavir 100mg+Dabigatran 75mg
For participants in Sequence 1: In Period 1, participants received Dabigatran orally as a 75 mg single dose followed by a 3-day washout.(Treatment 1) In Period 2, participants received PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose, followed by a 3-day washout. (Treatment 2) In Period 3, participants received ritonavir 100 mg every 12 hours (q12h) as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. (Treatment 3)
Dabigatran 75mg=>Ritonavir 100mg+Dabigatran 75mg=>PF-07321332 300mg+Ritonavir 100mg+Dabigatran 75mg
For participants in Sequence 6: In Period 1, participants received Dabigatran orally as a 75 mg single dose followed by a 3-day washout. In Period 2, participants received ritonavir 100 mg every 12 hours (q12h) as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. In Period 3, participants received PF-07321332/ritonavir 300 mg/100 mg q12h as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. Treatment 2 was followed by a 3-day washout.
PF-07321332 300mg+Ritonavir 100mg+Dabigatran 75mg=>Dabigatran 75mg=>Ritonavir 100mg+Dabigatran 75mg
For participants in Sequence 5: In Period 1, participants received PF-07321332/ritonavir 300 mg/100 mg q12h as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. Treatment 2 was followed by a 3-day washout. In Period 2, participants received Dabigatran orally as a 75 mg single dose followed by a 3-day washout. In Period 3, participants received ritonavir 100 mg every 12 hours (q12h) as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
PF-07321332 300mg+Ritonavir 100mg+Dabigatran 75mg=>Ritonavir 100mg+Dabigatran 75mg=>Dabigatran 75mg
For participants in Sequence 3: In Period 1, Participants received PF-07321332/ritonavir 300 mg/100 mg q12h as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. Treatment 2 was followed by a 3-day washout. In Period 2, Participants received ritonavir 100 mg every 12 hours (q12h) as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. In Period 3, Participants received Dabigatran orally as a 75 mg single dose followed by a 3-day washout.
Ritonavir 100mg+Dabigatran 75mg=>Dabigatran 75mg=>PF-07321332 300mg+Ritonavir 100mg+Dabigatran 75mg
For participants in Sequence 2: In Period 1, Participants received ritonavir 100 mg every 12 hours (q12h) as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. In Period 2, Participants received Dabigatran orally as a 75 mg single dose followed by a 3-day washout. In Period 3, Participants received PF-07321332/ritonavir 300 mg/100 mg q12h as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. Treatment 2 was followed by a 3-day washout.
Ritonavir 100mg+Dabigatran 75mg=>PF-07321332 300mg+Ritonavir 100mg+Dabigatran 75mg=>Dabigatran 75mg
For participants in Sequence 4: In Period 1, Participants received ritonavir 100 mg every 12 hours (q12h) as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. In Period 2, Participants received PF-07321332/ritonavir 300 mg/100 mg q12h as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. Treatment 2 was followed by a 3-day washout. In Period 3, Participants received Dabigatran orally as a 75 mg single dose followed by a 3-day washout.
Period 1
STARTED
4
4
4
4
4
4
Period 1
COMPLETED
4
4
4
4
4
4
Period 1
NOT COMPLETED
0
0
0
0
0
0
Period 2
STARTED
4
4
4
4
4
4
Period 2
COMPLETED
4
4
4
4
4
4
Period 2
NOT COMPLETED
0
0
0
0
0
0
Period 3
STARTED
4
4
4
4
4
4
Period 3
COMPLETED
4
4
4
4
3
4
Period 3
NOT COMPLETED
0
0
0
0
1
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Dabigatran 75mg=>PF-07321332 300mg+Ritonavir 100mg+Dabigatran 75mg=>Ritonavir 100mg+Dabigatran 75mg
For participants in Sequence 1: In Period 1, participants received Dabigatran orally as a 75 mg single dose followed by a 3-day washout.(Treatment 1) In Period 2, participants received PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose, followed by a 3-day washout. (Treatment 2) In Period 3, participants received ritonavir 100 mg every 12 hours (q12h) as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. (Treatment 3)
Dabigatran 75mg=>Ritonavir 100mg+Dabigatran 75mg=>PF-07321332 300mg+Ritonavir 100mg+Dabigatran 75mg
For participants in Sequence 6: In Period 1, participants received Dabigatran orally as a 75 mg single dose followed by a 3-day washout. In Period 2, participants received ritonavir 100 mg every 12 hours (q12h) as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. In Period 3, participants received PF-07321332/ritonavir 300 mg/100 mg q12h as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. Treatment 2 was followed by a 3-day washout.
PF-07321332 300mg+Ritonavir 100mg+Dabigatran 75mg=>Dabigatran 75mg=>Ritonavir 100mg+Dabigatran 75mg
For participants in Sequence 5: In Period 1, participants received PF-07321332/ritonavir 300 mg/100 mg q12h as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. Treatment 2 was followed by a 3-day washout. In Period 2, participants received Dabigatran orally as a 75 mg single dose followed by a 3-day washout. In Period 3, participants received ritonavir 100 mg every 12 hours (q12h) as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
PF-07321332 300mg+Ritonavir 100mg+Dabigatran 75mg=>Ritonavir 100mg+Dabigatran 75mg=>Dabigatran 75mg
For participants in Sequence 3: In Period 1, Participants received PF-07321332/ritonavir 300 mg/100 mg q12h as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. Treatment 2 was followed by a 3-day washout. In Period 2, Participants received ritonavir 100 mg every 12 hours (q12h) as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. In Period 3, Participants received Dabigatran orally as a 75 mg single dose followed by a 3-day washout.
Ritonavir 100mg+Dabigatran 75mg=>Dabigatran 75mg=>PF-07321332 300mg+Ritonavir 100mg+Dabigatran 75mg
For participants in Sequence 2: In Period 1, Participants received ritonavir 100 mg every 12 hours (q12h) as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. In Period 2, Participants received Dabigatran orally as a 75 mg single dose followed by a 3-day washout. In Period 3, Participants received PF-07321332/ritonavir 300 mg/100 mg q12h as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. Treatment 2 was followed by a 3-day washout.
Ritonavir 100mg+Dabigatran 75mg=>PF-07321332 300mg+Ritonavir 100mg+Dabigatran 75mg=>Dabigatran 75mg
For participants in Sequence 4: In Period 1, Participants received ritonavir 100 mg every 12 hours (q12h) as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. In Period 2, Participants received PF-07321332/ritonavir 300 mg/100 mg q12h as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose. Treatment 2 was followed by a 3-day washout. In Period 3, Participants received Dabigatran orally as a 75 mg single dose followed by a 3-day washout.
Period 3
Withdrawal by Subject
0
0
0
0
1
0

Baseline Characteristics

PF-07321332/Ritonavir and Ritonavir on Dabigatran Study in Healthy Participants

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Enrolled Set
n=24 Participants
Enrolled set is defined as all participants legally authorized representative's, agreement to participate in this study following completion of the informed consent process and screening.
Age, Customized
<18
0 Participants
n=5 Participants
Age, Customized
18-44
9 Participants
n=5 Participants
Age, Customized
45-64
15 Participants
n=5 Participants
Age, Customized
>=65
0 Participants
n=5 Participants
Age, Customized
Unspecified
0 Participants
n=5 Participants
Sex: Female, Male
Female
15 Participants
n=5 Participants
Sex: Female, Male
Male
9 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
24 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
0 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Race/Ethnicity, Customized
White
17 Participants
n=5 Participants
Race/Ethnicity, Customized
Black or African American
6 Participants
n=5 Participants
Race/Ethnicity, Customized
Asian
0 Participants
n=5 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
0 Participants
n=5 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race/Ethnicity, Customized
Other
0 Participants
n=5 Participants
Race/Ethnicity, Customized
Unknown
0 Participants
n=5 Participants
Race/Ethnicity, Customized
Multiracial
1 Participants
n=5 Participants
Race/Ethnicity, Customized
Not reported
0 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Treatment 1 Day 1 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-dose. Treatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-dose

Population: All participants assigned to investigational product and treated who have at least 1 concentration measured.

Cmax was defined as maximum observed plasma concentration.

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
n=24 Participants
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Plasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): Maximum Plasma Concentration (Cmax)
71.87 ng/mL
Geometric Coefficient of Variation 78
154.1 ng/mL
Geometric Coefficient of Variation 72

PRIMARY outcome

Timeframe: Treatment 1 Day 1 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-dose. Treatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-dose

Population: All participants assigned to investigational product and treated who have at least 1 concentration measured.

AUCinf was defined as the area under the plasma concentration-time curve from time 0 extrapolated to infinity

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
n=24 Participants
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Plasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): AUCinf
625.6 ng*hr/mL
Geometric Coefficient of Variation 61
1177 ng*hr/mL
Geometric Coefficient of Variation 66

PRIMARY outcome

Timeframe: Treatment 1 Day 1 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-dose. Treatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-dose

Population: All participants assigned to investigational product and treated who have at least 1 concentration measured.

AUClast was defined as area under the plasma concentration time curve from time 0 to the time of the last measurable concentration.

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
n=24 Participants
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Plasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): AUClast
595.0 ng*hr/mL
Geometric Coefficient of Variation 65
1178 ng*hr/mL
Geometric Coefficient of Variation 68

SECONDARY outcome

Timeframe: Treatment 1 Day 1 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-dose. Treatment 3 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-dose

Population: All participants assigned to investigational product and treated who have at least 1 concentration measured.

Cmax was defined as maximum observed plasma concentration

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
n=24 Participants
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Plasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): Maximum Plasma Concentration (Cmax)
71.87 ng/mL
Geometric Coefficient of Variation 78
117.9 ng/mL
Geometric Coefficient of Variation 123

SECONDARY outcome

Timeframe: Treatment 1 Day 1 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-dose. Treatment 3 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-dose

Population: All participants assigned to investigational product and treated who have at least 1 concentration measured.

AUCinf was defined as area under the plasma concentration-time curve from time 0 extrapolated to infinity

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
n=24 Participants
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Plasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): AUCinf
625.6 ng*hr/mL
Geometric Coefficient of Variation 61
1079 ng*hr/mL
Geometric Coefficient of Variation 65

SECONDARY outcome

Timeframe: Treatment 1 Day 1 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-dose. Treatment 3 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-dose

Population: All participants assigned to investigational product and treated who have at least 1 concentration measured.

AUClast was defined as area under the plasma concentration time curve from time 0 to the time of the last measurable concentration.

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
n=24 Participants
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Plasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): AUClast
595.0 ng*hr/mL
Geometric Coefficient of Variation 65
909.3 ng*hr/mL
Geometric Coefficient of Variation 124

SECONDARY outcome

Timeframe: From Pre-dose on Day 1 to Day 48

Population: All participants randomly assigned to study intervention and who took at least 1 dose of study intervention.

An adverse event (AE) was any untoward medical occurrence in a participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An serious adverse event (SAE) was defined as an AE: 1. resulting in death, 2. was life-threatening, 3. required inpatient hospitalization or prolongation of existing hospitalization, 4. resulted in persistent disability, 5. was a congenital anomaly/birth defect, or considered to be an important medical event. Treatment-related AE was any untoward medical occurrence attributed to study drug in a participant who received study drug.

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
n=24 Participants
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
n=24 Participants
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From Study
All-Causality AEs
3 Participants
5 Participants
2 Participants
Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From Study
Treatment-Related AEs
0 Participants
2 Participants
1 Participants
Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From Study
All-Causality SAEs
0 Participants
0 Participants
0 Participants
Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From Study
Treatment-Related SAEs
0 Participants
0 Participants
0 Participants
Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From Study
All-Causality AEs leading to discontinuation from study
0 Participants
0 Participants
0 Participants
Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From Study
Treatment-Related AEs leading to discontinuation from study
0 Participants
0 Participants
0 Participants

SECONDARY outcome

Timeframe: From pre-dose on Day 1 to Day 3

Population: All participants with at least one observation of the given laboratory test while on study treatment or during lag time.

To determine if there are any clinically significant laboratory abnormalities, the haematological, clinical chemistry (serum) and urinalysis safety tests were assessed against the criteria specified in the sponsor reporting standards. Tests including Ery. Mean Corpuscular Hemoglobin, Eosinophils, Activated Partial Thromboplastin Time, Bilirubin, Fibrinogen, URINE Hemoglobin, Nitrite, and Leukocyte Esterase tests.

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
n=24 Participants
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
n=24 Participants
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Number of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)
Ery. Mean Corpuscular Hemoglobin (pg/cell) < 0.9x LLN
1 Participants
1 Participants
1 Participants
Number of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)
Eosinophils (10^3/mm^3) > 1.2x ULN
1 Participants
1 Participants
0 Participants
Number of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)
Activated Partial Thromboplastin Time (sec) > 1.1x ULN
0 Participants
2 Participants
2 Participants
Number of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)
Bilirubin (mg/dL) > 1.5x ULN
1 Participants
0 Participants
0 Participants
Number of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)
Fibrinogen (mg/dL) > 1.25x Baseline
1 Participants
2 Participants
1 Participants
Number of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)
URINE Hemoglobin ≥ 1
6 Participants
6 Participants
6 Participants
Number of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)
Nitrite ≥ 1
3 Participants
3 Participants
1 Participants
Number of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)
Leukocyte Esterase ≥ 1
4 Participants
4 Participants
2 Participants

SECONDARY outcome

Timeframe: From pre-dose on Day 1 to Day 3

Population: All participants evaluated against criteria.

Single supine blood pressure and pulse rate tests were assessed against the criteria specified in the sponsor reporting standards.

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
n=24 Participants
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
n=24 Participants
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Number of Participants With Vital Signs of Potential Clinical Concern
Systolic Blood Pressure Value < 90 mmHg
2 Participants
2 Participants
0 Participants
Number of Participants With Vital Signs of Potential Clinical Concern
Systolic Blood Pressure Change ≥ 30 mmHg increase
0 Participants
2 Participants
0 Participants
Number of Participants With Vital Signs of Potential Clinical Concern
Systolic Blood Pressure Change ≥ 30 mmHg decrease
0 Participants
1 Participants
0 Participants
Number of Participants With Vital Signs of Potential Clinical Concern
Diastolic Blood Pressure Value < 50 mmHg
1 Participants
1 Participants
0 Participants
Number of Participants With Vital Signs of Potential Clinical Concern
Diastolic Blood Pressure Change ≥ 20 mmHg increase
0 Participants
1 Participants
1 Participants
Number of Participants With Vital Signs of Potential Clinical Concern
Diastolic Blood Pressure Change ≥ 20 mmHg decrease
1 Participants
2 Participants
0 Participants
Number of Participants With Vital Signs of Potential Clinical Concern
Pulse Rate Value < 40 bpm
0 Participants
0 Participants
0 Participants
Number of Participants With Vital Signs of Potential Clinical Concern
Pulse Rate Value > 120 bpm
0 Participants
0 Participants
0 Participants

SECONDARY outcome

Timeframe: From pre-dose on Day 1 to Day 3

Population: All participants evaluated against criteria.

QT interval, QTc, PR, RR, QRS and heart rate tests were assessed against the criteria specified in the sponsor reporting standards.

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
n=24 Participants
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
n=24 Participants
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Number of Participants With ECG Values of Potential Clinical Concern
PR Interval not Otherwise Specified Value ≥ 300 MSEC
0 Participants
0 Participants
0 Participants
Number of Participants With ECG Values of Potential Clinical Concern
PR Interval not Otherwise Specified %Change ≥ 25/50%
1 Participants
0 Participants
0 Participants
Number of Participants With ECG Values of Potential Clinical Concern
QRS Interval not Otherwise Specified Value ≥ 140 MSEC
0 Participants
0 Participants
0 Participants
Number of Participants With ECG Values of Potential Clinical Concern
QRS Interval not Otherwise Specified %Change ≥ 50%
0 Participants
0 Participants
0 Participants
Number of Participants With ECG Values of Potential Clinical Concern
QTCF not Otherwise Specified 450 MSEC ≤ Value < 480 MSEC
0 Participants
0 Participants
0 Participants
Number of Participants With ECG Values of Potential Clinical Concern
QTCF not Otherwise Specified 480 MSEC ≤ Value < 500 MSEC
0 Participants
0 Participants
0 Participants
Number of Participants With ECG Values of Potential Clinical Concern
QTCF not Otherwise Specified Value ≥ 500 MSEC
0 Participants
0 Participants
0 Participants
Number of Participants With ECG Values of Potential Clinical Concern
QTCF not Otherwise Specified 30 MSEC ≤ Change < 60 MSEC
0 Participants
0 Participants
0 Participants
Number of Participants With ECG Values of Potential Clinical Concern
QTCF not Otherwise Specified Change ≥ 60 MSEC
0 Participants
0 Participants
0 Participants

SECONDARY outcome

Timeframe: Treatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-dose

Population: All participants assigned to investigational product and treated who have at least 1 concentration measured.

Tmax was defined as time to first occurrence of Cmax

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Plasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): Time to First Occurrence of Cmax (Tmax)
2.000 hours
Interval 2.0 to 4.0

SECONDARY outcome

Timeframe: Treatment 3 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-dose

Population: All participants assigned to investigational product and treated who have at least 1 concentration measured.

Tmax was defined as time to first occurrence of Cmax.

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Plasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): Tmax
2.000 hours
Interval 1.0 to 4.0

SECONDARY outcome

Timeframe: Treatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-dose

Population: All participants assigned to investigational product and treated who have at least 1 concentration measured.

t½ was defined as terminal half-life of Dabigatran (Total) PK Parameters (PF-07321332/ritonavir co-administered with dabigatran.

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Plasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): Terminal Half-life (t½)
9.636 hours
Standard Deviation 1.5692

SECONDARY outcome

Timeframe: Treatment 3 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-dose

Population: All participants assigned to investigational product and treated who have at least 1 concentration measured.

t½ was defined as terminal half-life of Dabigatran (Total).

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Plasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): t½
10.16 hours
Standard Deviation 1.3350

SECONDARY outcome

Timeframe: Treatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12 hours post-dose

Population: All participants assigned to investigational product and treated who have at least 1 concentration measured.

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Plasma PF-07321332 PK Parameters: Cmax
4065 ng/mL
Geometric Coefficient of Variation 76

SECONDARY outcome

Timeframe: Treatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12 hours post-dose

Population: All participants assigned to investigational product and treated who have at least 1 concentration measured.

AUCtau was defined as area under the plasma concentration-time profile from time zero to time tau (τ) the dosing interval, where tau=12 hours for twice daily (BID) dosing.

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Plasma PF-07321332 PK Parameters: AUCtau
30080 ng*hr/mL
Geometric Coefficient of Variation 78

SECONDARY outcome

Timeframe: Treatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12 hours post-dose

Population: All participants assigned to investigational product and treated who have at least 1 concentration measured.

t½ was defined as terminal half-life of PF-07321332.

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Plasma PF-07321332 PK Parameters: t½
3.969 hours
Standard Deviation 0.53736

SECONDARY outcome

Timeframe: Treatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12 hours post-dose

Population: All participants assigned to investigational product and treated who have at least 1 concentration measured.

Tmax was defined as time to first occurrence of Cmax.

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Plasma PF-07321332 PK Parameters: Tmax
2.000 hours
Interval 1.0 to 4.0

SECONDARY outcome

Timeframe: Treatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12 hours post-dose

Population: All participants assigned to investigational product and treated who have at least 1 concentration measured.

CL/F was defined as apparent clearance of drug from plasma.

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Plasma PF-07321332 PK Parameters: CL/F
9.975 L/hr
Geometric Coefficient of Variation 78

SECONDARY outcome

Timeframe: Treatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12 hours post-dose

Population: All participants assigned to investigational product and treated who have at least 1 concentration measured.

Vz/F was defined as apparent volume of distribution.

Outcome measures

Outcome measures
Measure
Treatment 1: Dabigatran 75 mg
n=24 Participants
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
PF-07321332/ritonavir 300 mg/100 mg every 12 hours (q12h) was administered as a multiple dose over a period of 2 days. In the morning on Treatment 2 Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Plasma PF-07321332 PK Parameters: Vz/F
56.48 Liters
Geometric Coefficient of Variation 29

Adverse Events

Treatment 1: Dabigatran 75 mg

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

Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg

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

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Treatment 1: Dabigatran 75 mg
n=24 participants at risk
Dabigatran was administered orally as a 75 mg single dose followed by a 3-day washout.
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mg
n=24 participants at risk
PF-07321332/ritonavir 300 mg/100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mg
n=24 participants at risk
ritonavir 100 mg q12h was administered as a multiple dose over a period of 2 days. In the morning on Day 2, 75 mg of dabigatran was administered orally as a single dose.
Nervous system disorders
Headache
0.00%
0/24 • From Study Day 1 up to Study Day 48
Same event may appear as adverse event (AE) and serious AE, what is presented as distinct events. Event may be categorized as serious in 1 participant and as non-serious in another participant or 1 participant may have experienced both serious and non-serious event during study. Safety analysis set included all participants who were randomized and received at least 1 confirmed dose of investigational product.
4.2%
1/24 • From Study Day 1 up to Study Day 48
Same event may appear as adverse event (AE) and serious AE, what is presented as distinct events. Event may be categorized as serious in 1 participant and as non-serious in another participant or 1 participant may have experienced both serious and non-serious event during study. Safety analysis set included all participants who were randomized and received at least 1 confirmed dose of investigational product.
8.3%
2/24 • From Study Day 1 up to Study Day 48
Same event may appear as adverse event (AE) and serious AE, what is presented as distinct events. Event may be categorized as serious in 1 participant and as non-serious in another participant or 1 participant may have experienced both serious and non-serious event during study. Safety analysis set included all participants who were randomized and received at least 1 confirmed dose of investigational product.

Additional Information

Pfizer ClinicalTrials.gov Call Center

Pfizer Inc.

Phone: 1-800-718-1021

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