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

A PHASE 1, OPEN-LABEL, 3-TREATMENT, 6-SEQUENCE, 3-PERIOD CROSSOVER STUDY TO ESTIMATE THE EFFECT OF PF-07321332/RITONAVIR AND RITONAVIR ON THE PHARMACOKINETICS OF DABIGATRAN IN HEALTHY PARTICIPANTS

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05064800
Enrollment
24
Registered
2021-10-01
Start date
2021-09-21
Completion date
2021-12-06
Last updated
2024-03-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Participants

Keywords

Drug Drug Interaction, Dabigatran, P-gp Substrate, SARS-Co-V2, COVID-19, protease inhibitor, ritonavir

Brief summary

This is a drug-drug interaction study to assess the effects of PF-07321332/ritonavir and ritonavir on the Pharmacokinetic (PK) of dabigatran in healthy volunteers. PK will be evaluated for PF-07321332 and ritonavir. Dabigatran is being utilized as a P-gp substrate

Interventions

DRUGDabigatran

A single dose of Dabigatran on Day 1

DRUGPF-07321332/ritonavir + Dabigatran

PF-07321332/ritonavir twice daily (BID) for Days 1 and 2 Single dose of Dabigatran on Day 2

DRUGRitonavir + Dabigatran

Ritonavir BID on Days 1 and 2 Single dose of Dabigatran on Day 2

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
NONE

Intervention model description

This is a Phase1, open-label,3-treatment, 6-sequence, 3-period crossover study to estimate the effect of PF-07321332/ritonavir and ritonavir on the Pharmacokinetics of dabigatran in healthy participants

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
Yes

Inclusion criteria

* Body Mass Index (BMI) of 17.5 to 30.5 kg.m2; and a total body weight \>50 kg (110 lbs) * Female participants must have a negative pregnancy test

Exclusion criteria

* Positive test for SARS-Co-V2 at the time of screening or Day -1 * Active pathological bleeding or risk of bleeding * Positive urine drug test * History of sensitivity to heparin or heparin induced thrombocytopenia * Participants who have been vaccinated for COVID-19 in the past 7 days

Design outcomes

Primary

MeasureTime frameDescription
Plasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): Maximum Plasma Concentration (Cmax)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-doseCmax was defined as maximum observed plasma concentration.
Plasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): AUCinfTreatment 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-doseAUCinf was defined as the area under the plasma concentration-time curve from time 0 extrapolated to infinity
Plasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): AUClastTreatment 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-doseAUClast was defined as area under the plasma concentration time curve from time 0 to the time of the last measurable concentration.

Secondary

MeasureTime frameDescription
Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyFrom Pre-dose on Day 1 to Day 48An 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.
Number of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)From pre-dose on Day 1 to Day 3To 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.
Number of Participants With Vital Signs of Potential Clinical ConcernFrom pre-dose on Day 1 to Day 3Single supine blood pressure and pulse rate tests were assessed against the criteria specified in the sponsor reporting standards.
Number of Participants With ECG Values of Potential Clinical ConcernFrom pre-dose on Day 1 to Day 3QT interval, QTc, PR, RR, QRS and heart rate tests were assessed against the criteria specified in the sponsor reporting standards.
Plasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): Time to First Occurrence of Cmax (Tmax)Treatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-doseTmax was defined as time to first occurrence of Cmax
Plasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): TmaxTreatment 3 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-doseTmax was defined as time to first occurrence of Cmax.
Plasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): Terminal Half-life (t½)Treatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-doset½ was defined as terminal half-life of Dabigatran (Total) PK Parameters (PF-07321332/ritonavir co-administered with dabigatran.
Plasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): Maximum Plasma Concentration (Cmax)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-doseCmax was defined as maximum observed plasma concentration
Plasma PF-07321332 PK Parameters: CmaxTreatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12 hours post-dose
Plasma PF-07321332 PK Parameters: AUCtauTreatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12 hours post-doseAUCtau 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.
Plasma PF-07321332 PK Parameters: t½Treatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12 hours post-doset½ was defined as terminal half-life of PF-07321332.
Plasma PF-07321332 PK Parameters: TmaxTreatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12 hours post-doseTmax was defined as time to first occurrence of Cmax.
Plasma PF-07321332 PK Parameters: CL/FTreatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12 hours post-doseCL/F was defined as apparent clearance of drug from plasma.
Plasma PF-07321332 PK Parameters: Vz/FTreatment 2 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12 hours post-doseVz/F was defined as apparent volume of distribution.
Plasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): t½Treatment 3 Day 2 pre-dose, and at 1, 2, 4, 6, 8, 12, 16, 24, 36 and 48 hours post-doset½ was defined as terminal half-life of Dabigatran (Total).
Plasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): AUCinfTreatment 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-doseAUCinf was defined as area under the plasma concentration-time curve from time 0 extrapolated to infinity
Plasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): AUClastTreatment 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-doseAUClast was defined as area under the plasma concentration time curve from time 0 to the time of the last measurable concentration.

Countries

United States

Participant flow

Pre-assignment details

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

Participants by arm

ArmCount
Enrolled Set
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.
24
Total24

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
Period 3Withdrawal by Subject000010

Baseline characteristics

CharacteristicEnrolled Set
Age, Customized
<18
0 Participants
Age, Customized
18-44
9 Participants
Age, Customized
45-64
15 Participants
Age, Customized
>=65
0 Participants
Age, Customized
Unspecified
0 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
24 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
0 Participants
Race/Ethnicity, Customized
Asian
0 Participants
Race/Ethnicity, Customized
Black or African American
6 Participants
Race/Ethnicity, Customized
Multiracial
1 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
0 Participants
Race/Ethnicity, Customized
Not reported
0 Participants
Race/Ethnicity, Customized
Other
0 Participants
Race/Ethnicity, Customized
Unknown
0 Participants
Race/Ethnicity, Customized
White
17 Participants
Sex: Female, Male
Female
15 Participants
Sex: Female, Male
Male
9 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 240 / 240 / 24
other
Total, other adverse events
0 / 241 / 242 / 24
serious
Total, serious adverse events
0 / 240 / 240 / 24

Outcome results

Primary

Plasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): AUCinf

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

Time frame: 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.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment 1: Dabigatran 75 mgPlasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): AUCinf625.6 ng*hr/mLGeometric Coefficient of Variation 61
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgPlasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): AUCinf1177 ng*hr/mLGeometric Coefficient of Variation 66
Comparison: Treatment 1 was Reference and Treatment 2 was Test. Natural log-transformed AUCinf of dabigatran was analyzed using mixed effect model with treatment, period and sequence as fixed effects and participant in sequence as random effect. Estimates of the adjusted mean differences(AMD)(Test-Reference) and 90%CIs were obtained from the model. The AMD and 90%CIs for the differences were exponentiated to provide estimates of the ratio of adjusted geometric means(Test/Reference) and 90%CI for the ratios.90% CI: [135.25, 211.35]Mixed Models Analysis
Primary

Plasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): AUClast

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

Time frame: 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.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment 1: Dabigatran 75 mgPlasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): AUClast595.0 ng*hr/mLGeometric Coefficient of Variation 65
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgPlasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): AUClast1178 ng*hr/mLGeometric Coefficient of Variation 68
Comparison: Treatment 1 was Reference and Treatment 2 was Test. Natural log-transformed AUClast of dabigatran was analyzed using mixed effect model with treatment, period and sequence as fixed effects and participant in sequence as random effect. Estimates of the adjusted mean differences(AMD)(Test-Reference) and 90%CIs were obtained from the model.The AMD and 90%CIs for the differences were exponentiated to provide estimates of the ratio of adjusted geometric means(Test/Reference) and 90%CI for the ratios.90% CI: [119.19, 214.9]Mixed Models Analysis
Primary

Plasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): Maximum Plasma Concentration (Cmax)

Cmax was defined as maximum observed plasma concentration.

Time frame: 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.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment 1: Dabigatran 75 mgPlasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): Maximum Plasma Concentration (Cmax)71.87 ng/mLGeometric Coefficient of Variation 78
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgPlasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): Maximum Plasma Concentration (Cmax)154.1 ng/mLGeometric Coefficient of Variation 72
Comparison: Treatment 1 was Reference and Treatment 2 was Test. Natural log-transformed Cmax of dabigatran was analyzed using mixed effect model with treatment, period, sequence as fixed effects; participant within sequence as a random effect. Estimates of the adjusted mean differences(AMD) (Test-Reference) and 90%CIs were obtained from the model. The AMD and 90%CIs for the differences were exponentiated to provide estimates of the ratio of adjusted geometric means (Test/Reference) and 90%CI for the ratios.90% CI: [172.14, 315.54]Mixed Models Analysis
Secondary

Number of Participants With ECG Values of Potential Clinical Concern

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

Time frame: From pre-dose on Day 1 to Day 3

Population: All participants evaluated against criteria.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Treatment 1: Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQRS Interval not Otherwise Specified %Change ≥ 50%0 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQTCF not Otherwise Specified Change ≥ 60 MSEC0 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQTCF not Otherwise Specified 480 MSEC ≤ Value < 500 MSEC0 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQTCF not Otherwise Specified 450 MSEC ≤ Value < 480 MSEC0 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernPR Interval not Otherwise Specified Value ≥ 300 MSEC0 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQTCF not Otherwise Specified 30 MSEC ≤ Change < 60 MSEC0 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQRS Interval not Otherwise Specified Value ≥ 140 MSEC0 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernPR Interval not Otherwise Specified %Change ≥ 25/50%1 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQTCF not Otherwise Specified Value ≥ 500 MSEC0 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQTCF not Otherwise Specified 450 MSEC ≤ Value < 480 MSEC0 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernPR Interval not Otherwise Specified Value ≥ 300 MSEC0 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernPR Interval not Otherwise Specified %Change ≥ 25/50%0 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQRS Interval not Otherwise Specified Value ≥ 140 MSEC0 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQRS Interval not Otherwise Specified %Change ≥ 50%0 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQTCF not Otherwise Specified 480 MSEC ≤ Value < 500 MSEC0 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQTCF not Otherwise Specified Value ≥ 500 MSEC0 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQTCF not Otherwise Specified 30 MSEC ≤ Change < 60 MSEC0 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQTCF not Otherwise Specified Change ≥ 60 MSEC0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQRS Interval not Otherwise Specified Value ≥ 140 MSEC0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernPR Interval not Otherwise Specified Value ≥ 300 MSEC0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQTCF not Otherwise Specified Value ≥ 500 MSEC0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernPR Interval not Otherwise Specified %Change ≥ 25/50%0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQTCF not Otherwise Specified Change ≥ 60 MSEC0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQTCF not Otherwise Specified 450 MSEC ≤ Value < 480 MSEC0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQRS Interval not Otherwise Specified %Change ≥ 50%0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQTCF not Otherwise Specified 30 MSEC ≤ Change < 60 MSEC0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With ECG Values of Potential Clinical ConcernQTCF not Otherwise Specified 480 MSEC ≤ Value < 500 MSEC0 Participants
Secondary

Number of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)

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.

Time frame: 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.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Treatment 1: Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Ery. Mean Corpuscular Hemoglobin (pg/cell) < 0.9x LLN1 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Eosinophils (10^3/mm^3) > 1.2x ULN1 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Activated Partial Thromboplastin Time (sec) > 1.1x ULN0 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Bilirubin (mg/dL) > 1.5x ULN1 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Fibrinogen (mg/dL) > 1.25x Baseline1 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)URINE Hemoglobin ≥ 16 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Nitrite ≥ 13 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Leukocyte Esterase ≥ 14 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Activated Partial Thromboplastin Time (sec) > 1.1x ULN2 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Nitrite ≥ 13 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Bilirubin (mg/dL) > 1.5x ULN0 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Fibrinogen (mg/dL) > 1.25x Baseline2 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)URINE Hemoglobin ≥ 16 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Ery. Mean Corpuscular Hemoglobin (pg/cell) < 0.9x LLN1 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Eosinophils (10^3/mm^3) > 1.2x ULN1 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Leukocyte Esterase ≥ 14 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Activated Partial Thromboplastin Time (sec) > 1.1x ULN2 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Eosinophils (10^3/mm^3) > 1.2x ULN0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Ery. Mean Corpuscular Hemoglobin (pg/cell) < 0.9x LLN1 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Bilirubin (mg/dL) > 1.5x ULN0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Nitrite ≥ 11 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)URINE Hemoglobin ≥ 16 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Fibrinogen (mg/dL) > 1.25x Baseline1 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Laboratory Test Abnormality (Without Regard to Baseline Abnormality)Leukocyte Esterase ≥ 12 Participants
Secondary

Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From Study

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.

Time frame: 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.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Treatment 1: Dabigatran 75 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyAll-Causality AEs3 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyTreatment-Related AEs0 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyTreatment-Related AEs leading to discontinuation from study0 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyAll-Causality SAEs0 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyTreatment-Related SAEs0 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyAll-Causality AEs leading to discontinuation from study0 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyTreatment-Related SAEs0 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyAll-Causality AEs leading to discontinuation from study0 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyAll-Causality SAEs0 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyAll-Causality AEs5 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyTreatment-Related AEs leading to discontinuation from study0 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyTreatment-Related AEs2 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyTreatment-Related AEs leading to discontinuation from study0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyAll-Causality AEs2 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyAll-Causality SAEs0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyTreatment-Related SAEs0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyAll-Causality AEs leading to discontinuation from study0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs , and TEAEs Leading to Participant Discontinuation From StudyTreatment-Related AEs1 Participants
Secondary

Number of Participants With Vital Signs of Potential Clinical Concern

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

Time frame: From pre-dose on Day 1 to Day 3

Population: All participants evaluated against criteria.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Treatment 1: Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernSystolic Blood Pressure Change ≥ 30 mmHg increase0 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernDiastolic Blood Pressure Change ≥ 20 mmHg decrease1 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernPulse Rate Value > 120 bpm0 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernSystolic Blood Pressure Value < 90 mmHg2 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernSystolic Blood Pressure Change ≥ 30 mmHg decrease0 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernDiastolic Blood Pressure Value < 50 mmHg1 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernPulse Rate Value < 40 bpm0 Participants
Treatment 1: Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernDiastolic Blood Pressure Change ≥ 20 mmHg increase0 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernDiastolic Blood Pressure Value < 50 mmHg1 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernSystolic Blood Pressure Change ≥ 30 mmHg decrease1 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernDiastolic Blood Pressure Change ≥ 20 mmHg decrease2 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernPulse Rate Value < 40 bpm0 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernSystolic Blood Pressure Change ≥ 30 mmHg increase2 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernSystolic Blood Pressure Value < 90 mmHg2 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernPulse Rate Value > 120 bpm0 Participants
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernDiastolic Blood Pressure Change ≥ 20 mmHg increase1 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernPulse Rate Value > 120 bpm0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernSystolic Blood Pressure Value < 90 mmHg0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernSystolic Blood Pressure Change ≥ 30 mmHg increase0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernSystolic Blood Pressure Change ≥ 30 mmHg decrease0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernDiastolic Blood Pressure Value < 50 mmHg0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernDiastolic Blood Pressure Change ≥ 20 mmHg increase1 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernPulse Rate Value < 40 bpm0 Participants
Treatment 3: Ritonavir 100 mg + Dabigatran 75 mgNumber of Participants With Vital Signs of Potential Clinical ConcernDiastolic Blood Pressure Change ≥ 20 mmHg decrease0 Participants
Secondary

Plasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): Terminal Half-life (t½)

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

Time frame: 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.

ArmMeasureValue (MEAN)Dispersion
Treatment 1: Dabigatran 75 mgPlasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): Terminal Half-life (t½)9.636 hoursStandard Deviation 1.5692
Secondary

Plasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): Time to First Occurrence of Cmax (Tmax)

Tmax was defined as time to first occurrence of Cmax

Time frame: 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.

ArmMeasureValue (MEDIAN)
Treatment 1: Dabigatran 75 mgPlasma Dabigatran (Total) PK Parameters (PF-07321332/Ritonavir Co-administered With Dabigatran [Treatment 2]): Time to First Occurrence of Cmax (Tmax)2.000 hours
Secondary

Plasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): AUCinf

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

Time frame: 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.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment 1: Dabigatran 75 mgPlasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): AUCinf625.6 ng*hr/mLGeometric Coefficient of Variation 61
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgPlasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): AUCinf1079 ng*hr/mLGeometric Coefficient of Variation 65
Comparison: Treatment 1 was Reference and Treatment 3 was Test. Natural log-transformed AUCinf of dabigatran was analyzed using mixed effect model with treatment, period and sequence as fixed effects and participant in sequence as random effect. Estimates of the adjusted mean differences(AMD)(Test-Reference) and 90%CIs were obtained from the model. The AMD and 90%CIs for the differences were exponentiated to provide estimates of the ratio of adjusted geometric means(Test/Reference) and 90%CI for the ratios.90% CI: [135.25, 211.35]Mixed Models Analysis
Secondary

Plasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): AUClast

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

Time frame: 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.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment 1: Dabigatran 75 mgPlasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): AUClast595.0 ng*hr/mLGeometric Coefficient of Variation 65
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgPlasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): AUClast909.3 ng*hr/mLGeometric Coefficient of Variation 124
Comparison: Treatment 1 was Reference and Treatment 3 was Test. Natural log-transformed AUClast of dabigatran was analyzed using mixed effect model with treatment, period and sequence as fixed effects and participant in sequence as random effect. Estimates of the adjusted mean differences(AMD)(Test-Reference) and 90%CIs were obtained from the model.The AMD and 90%CIs for the differences were exponentiated to provide estimates of the ratio of adjusted geometric means(Test/Reference) and 90%CI for the ratios.90% CI: [119.19, 214.9]Mixed Models Analysis
Secondary

Plasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): Maximum Plasma Concentration (Cmax)

Cmax was defined as maximum observed plasma concentration

Time frame: 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.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment 1: Dabigatran 75 mgPlasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): Maximum Plasma Concentration (Cmax)71.87 ng/mLGeometric Coefficient of Variation 78
Treatment 2: PF-07321332 300 mg + Ritonavir 100 mg + Dabigatran 75 mgPlasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): Maximum Plasma Concentration (Cmax)117.9 ng/mLGeometric Coefficient of Variation 123
Comparison: Treatment 1 was Reference and Treatment 3 was Test. Natural log-transformed Cmax of dabigatran was analyzed using mixed effect model with treatment, period, sequence as fixed effects; participant within sequence as a random effect. Estimates of the adjusted mean differences(AMD) (Test-Reference) and 90%CIs were obtained from the model. The AMD and 90%CIs for the differences were exponentiated to provide estimates of the ratio of adjusted geometric means (Test/Reference) and 90%CI for the ratios.90% CI: [127.51, 231.77]Mixed Models Analysis
Secondary

Plasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): t½

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

Time frame: 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.

ArmMeasureValue (MEAN)Dispersion
Treatment 1: Dabigatran 75 mgPlasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): t½10.16 hoursStandard Deviation 1.335
Secondary

Plasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): Tmax

Tmax was defined as time to first occurrence of Cmax.

Time frame: 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.

ArmMeasureValue (MEDIAN)
Treatment 1: Dabigatran 75 mgPlasma Dabigatran (Total) PK Parameters (Ritonavir Co-administered With Dabigatran [Treatment 3]): Tmax2.000 hours
Secondary

Plasma PF-07321332 PK Parameters: AUCtau

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.

Time frame: 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.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment 1: Dabigatran 75 mgPlasma PF-07321332 PK Parameters: AUCtau30080 ng*hr/mLGeometric Coefficient of Variation 78
Secondary

Plasma PF-07321332 PK Parameters: CL/F

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

Time frame: 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.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment 1: Dabigatran 75 mgPlasma PF-07321332 PK Parameters: CL/F9.975 L/hrGeometric Coefficient of Variation 78
Secondary

Plasma PF-07321332 PK Parameters: Cmax

Time frame: 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.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment 1: Dabigatran 75 mgPlasma PF-07321332 PK Parameters: Cmax4065 ng/mLGeometric Coefficient of Variation 76
Secondary

Plasma PF-07321332 PK Parameters: t½

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

Time frame: 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.

ArmMeasureValue (MEAN)Dispersion
Treatment 1: Dabigatran 75 mgPlasma PF-07321332 PK Parameters: t½3.969 hoursStandard Deviation 0.53736
Secondary

Plasma PF-07321332 PK Parameters: Tmax

Tmax was defined as time to first occurrence of Cmax.

Time frame: 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.

ArmMeasureValue (MEAN)
Treatment 1: Dabigatran 75 mgPlasma PF-07321332 PK Parameters: Tmax2.000 hours
Secondary

Plasma PF-07321332 PK Parameters: Vz/F

Vz/F was defined as apparent volume of distribution.

Time frame: 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.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment 1: Dabigatran 75 mgPlasma PF-07321332 PK Parameters: Vz/F56.48 LitersGeometric Coefficient of Variation 29

Source: ClinicalTrials.gov · Data processed: May 1, 2026