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A Study to Learn if Multiple Doses of the Study Medicine Called Carbamazepine Changes How the Body Processes the Other Study Medicine PF-07248144

A PHASE 1, OPEN-LABEL, FIXED SEQUENCE, 2-PERIOD STUDY IN HEALTHY PARTICIPANTS TO INVESTIGATE THE EFFECT OF CARBAMAZEPINE ON PF-07248144 PHARMACOKINETICS

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07198035
Enrollment
12
Registered
2025-09-30
Start date
2025-09-18
Completion date
2026-01-15
Last updated
2026-04-03

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

Conditions

Healthy Adults

Brief summary

The purpose of the study is to learn how the study medicine called carbamazepine changes how the body processes the other study medicine called PF-07248144. The study will also look at the safety, tolerability, and how PF-07248144 is changed and removed from the body after taking PF-07248144 alone compared to when it is taken with carbamazepine. Carbamazepine can change how your body processes some medications so it may change the body's processing of PF-07248144. Multiple blood samples will be collected up to 8 days after each dose of PF-07248144 to determine how much PF-07248144 is in the blood at different times. This will help characterize the pharmacokinetics (pharmacokinetics helps us understand how the drug is changed and eliminated from your body after you take it) of PF-07248144 alone and when taken with carbamazepine.

Interventions

Participants will receive a single dose of PF-07248144 by mouth in Period 1 on Day 1 and Period 2 on Day 14, with a washout period of at least 14 days between two doses of PF-07248144

DRUGCarbamazepine

Participants will receive Carbamazepine by mouth once a day for Day 1 through 3, then twice a day for Day 4 through 7, and then three times daily for Day 8 through 20 in Period 2.

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

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

Inclusion criteria

Inclusion * Females of nonchildbearing potential and males, inclusive, at screening who are able to provide consent and are overtly healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, vital signs, and 12-lead electrocardiogram (ECG)s. * Body mass index (BMI) of 16-32 kg/m2; and a total body weight \>45 kg (99 lb). Exclusion * Participants shown to carry or be positive for human leukocyte antigen (HLA)-B\*1502 and/or HLA-A\*3101 (genotyping alleles/markers related with carbamazepine-associated Stevens-Johnson syndrome (SJS) or toxic epidermal necrolysis \[TEN\]). * Any medical or psychiatric condition including any active suicidal ideation in the past year or suicidal behavior in the past 5 years or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study. * Use of prescription or nonprescription drugs and dietary and herbal supplements within 14 days or 5 half-lives (whichever is longer) prior to the first dose of study intervention. * Additionally, current use or anticipated need for food or drugs that are known moderate or strong inducers or inhibitors of CYP2C9 or CYP3A4, including their administration within 14 days or 5 half-lives of the strong inducers or inhibitors of CYP2C9 or CYP3A4, whichever is longer, prior to first dose of study intervention, during the treatment period, and within 10 days after the last dose of PF-07248144. * Pregnant female participants; breastfeeding female participants; individual(s) of childbearing potential (IOCBPs); fertile male participants who are unwilling or unable to use highly effective methods of contraception as outlined in this protocol for the duration of the study and for at least 103 days after the last dose of study intervention.

Design outcomes

Primary

MeasureTime frame
Maximum Observed Plasma Concentration (Cmax) Period 10 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 72, 120 and 168 hours post-dose
Cmax Period 2Day 14: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 72, 120 and 168 hours post-dose
Area Under the Curve From Time Zero to Extrapolated Infinite Time (AUCinf) Period 10 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 72, 120 and 168 hours post-dose
AUCinf Period 2Day 14: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 72, 120 and 168 hours post-dose
Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast). Period 1. To be used as the primary endpoint if AUCinf cannot be reliably estimated0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 72, 120 and 168 hours post-dose
AUClast. Period 2. To be used as the primary endpoint if AUCinf cannot be reliably estimatedDay 14: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 72, 120 and 168 hours post-dose

Secondary

MeasureTime frame
Number of Treatment-Emergent Treatment-Related AEs by SeverityFrom Day 1 of dosing up to 35 days after last of study intervention (maximum up to 55 days)
Number of Participants With Laboratory Test AbnormalitiesFrom Day 1 of dosing up to 35 days after last of study intervention (maximum up to 55 days)
Number of Participants With Clinically Significant Physical Examination AbnormalitiesFrom Day 1 of dosing up to 35 days after last of study intervention (maximum up to 55 days)
Number of Participants With Vital Signs Values Meeting Categorical Summarization CriteriaFrom Day 1 of dosing up to 35 days after last of study intervention (maximum up to 55 days)
Number of Participants With Clinically Significant Changes From Baseline in 12-Lead Electrocardiogram (ECG) ParametersFrom Day 1 of dosing up to 35 days after last of study intervention (maximum up to 55 days)

Countries

Belgium

Contacts

STUDY_DIRECTORPfizer CT.gov Call Center

Pfizer

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 4, 2026