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A Study to Learn How Different Preparations of Osivelotor Taste and Enter the Blood With Food or Liquids or With an Antacid in Healthy Adults

A PHASE 1, RANDOMIZED, CROSSOVER DESIGN STUDY TO ASSESS PALATABILITY OF OSIVELOTOR (PF-07940367) PEDIATRIC FORMULATIONS WITH DOSING VEHICLE (PART 1) AND RANDOMIZED, SINGLE-DOSE, PARALLEL DESIGN STUDY TO ESTIMATE RELATIVE BIOAVAILABILITY OF OSIVELOTOR PEDIATRIC FORMULATION WITH DOSING VEHICLE AND WITH WATER COMPARED TO CLINICAL TABLET FORMULATION, AND EFFECT OF FOOD AND/OR ACID-REDUCING AGENT ON BIOAVAILABILITY IN HEALTHY ADULT PARTICIPANTS (PART 2)

Status
Not yet recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06507904
Enrollment
52
Registered
2024-07-18
Start date
2026-09-22
Completion date
2027-05-10
Last updated
2026-09-15

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

Conditions

Healthy

Keywords

palatability, bioavailability

Brief summary

A study to learn how different preparations of osivelotor taste and enter the blood with food or liquids, or with an antacid in healthy adults.

Detailed description

This study has two parts: Part 1 and Part 2. The purpose of Part 1 of this study is to learn how different preparations of the study medicine called osivelotor (PF-07940367) taste. The purpose of Part 2 of this study is to learn how the study medicine is taken up into the blood when mixed with: * soft foods or liquids given on an empty stomach or * with an acid-reducing agent in healthy adults. This study is seeking participants who are: * healthy females and males of 18 to 65 years of age. * have a body mass index of 16 to 32 kilogram per meter squared. * have a total body weight of more than 50 kilograms (110 pounds). Participants in Part 1 of the study will receive the study medicine 4 times with at least 2-hour interval on day one. This study medicine will not be swallowed but will be placed in the mouth and spat out. The participants will then complete a short questionnaire 4 times over 20 minutes. All study medicines will be given in the study clinic. Participants in Part 2 of the study will receive the study medicine up to 2 times. The first dose of the study medicine will be swallowed. The second dose the study medicine (if given) will not be swallowed but will be placed in the mouth and spat out for the taste questionnaire as above. All study medicines will be given in the study clinic. In Part 1, participants will be involved in this study for up to 2 months. During this time, there will be a two-day stay in the study clinic. After leaving the clinic, study team will also call participants once over the phone. Woman who could become pregnant may need to visit the study clinic instead of receiving a phone call. In Part 2, participants will be involved in this study for up to 4 months. During this time, there will be a seven-day stay in the study clinic. After leaving the clinic, the study team will also call participants 3 times over the phone. Woman who could become pregnant may need to visit the study clinic instead of receiving a phone calls. In both parts blood and urine tests will be done, and blood pressures and heart traces taken. Also, contraception requirements will need to be followed to prevent pregnancy during the study.

Interventions

A medicine to treat sickle cell disease.

OTHERFamotidine

Famotidine is a marketed medicine which decreases the amount of acid made in the stomach and is used to prevent and treat heartburn.

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Male and female participants aged 18 years (or the minimum age of consent in accordance with local regulations if \>18 years) to 65 years (inclusive) at screening who are overtly healthy as determined by medical evaluation including a detailed medical history, complete physical examination (PE), including blood pressure (BP) and pulse rate (PR) measurement, 12-lead ECG (electrocardiogram) and clinical laboratory tests. * Body mass index (BMI) of ≥16 to ≤32 kg/m2; Body weight ≥50 kg (110 lb).

Exclusion criteria

* Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurological, or allergic disease (including drug allergies, but excluding untreated, asymptomatic, seasonal allergies at the time of dosing). * Use of prescription or nonprescription drug, dietary and herbal supplements within 7 days or 5 half-lives (whichever is longer), with the exception of moderate or strong cytochrome P450 (CYP)3A inducers or inhibitors which are prohibited within 14 days plus 5 half-lives, prior to the first dose of study intervention. * Current use of any prohibited concomitant medication(s) or participant unwilling/able to use a permitted concomitant medication(s). * Previous administration with an investigational product (drug or vaccine) within 30 days (or as determined by the local requirement) or 5 half-lives preceding the first dose of study intervention used in this study (whichever is longer). Participation in studies of other investigational products (drug or vaccine) at any time during their participation in this study. * For females, pregnancy, as indicated by a positive serum pregnancy test (serum) at screening and/or a positive pregnancy test (serum and/or urine) on Day -1 in women of childbearing potential. * Screening supine BP ≥140 mm Hg (systolic) or ≥90 mm Hg (diastolic) for participants \<60 years; and ≥150/90 mm/Hg for participants ≥60 years old, following at least 5 minutes of supine rest. * Standard 12-lead ECG that demonstrates clinically relevant abnormalities that may affect participant safety or interpretation of study results (eg, QTcF \[QTc corrected using Fridericia's formula\] \>450 ms, complete left bundle branch block (LBBB), signs of an acute or indeterminate-age myocardial infarction, ST-T interval changes suggestive of myocardial ischemia, second- or third- degree AV (atrioventricular) block, or serious bradyarrhythmias or tachyarrhythmias). * Participants with defined abnormalities in kidney and liver laboratory tests at screening. * Participants in Sub-Saharan Africa or who have relocated from Sub-Saharan Africa within 6 months of screening.

Design outcomes

Primary

MeasureTime frameDescription
Part 1: Mouth Feel Effect1, 5, 10, 20 minutes post doseMouth feel visual analogue scale (VAS) assesses the participant's global perception of mouth feel (that is, effects over the whole course of the drug experience including any carryover effects). A 100-point VAS is used to assess response based on a score ranging from 0 points to 100 points (0 points = " Bad Mouth feel ", 50 points = "neither bad nor good mouth feel", and 100 points = "Good Mouth feel ").
Part 1: Bitter effect1, 5, 10, 20 minutes post doseBitter visual analogue scale (VAS) assesses the participant's global perception of bitterness (that is, effects over the whole course of the drug experience including any carryover effects). A 100-point VAS is used to assess response based on a score ranging from 0 points to 100 points (0 points = " extremely bitter ", 50 points = "neither bad nor good bitterness", and 100 points = "not bitter").
Part 1: Tongue/mouth burn effect1, 5, 10, 20 minutes post doseTongue/mouth burn visual analogue scale (VAS) assesses the participant's global perception of tongue/mouth burn (that is, effects over the whole course of the drug experience including any carryover effects). A 100-point VAS is used to assess response based on a score ranging from 0 points to 100 points (0 points = "extreme burn", 50 points = "neither bad nor good burn", and 100 points = "no burn").
Part 1: Overall liking effect1, 5, 10, 20 minutes post doseOverall liking visual analogue scale (VAS) assesses the participant's global perception of overall liking (that is, effects over the whole course of the drug experience including any carryover effects). A 100-point VAS is used to assess response based on a score ranging from 0 points to 100 points (0 points = "bad", 50 points = "neither bad nor good", and 100 points = "good").
Part 2: Area under the Concentration-Time Curve (AUC 0-144) (if data permit, otherwise AUClast) for osivelotor in whole blood.0, 2, 4, 6, 8, 12, 24, 48, 72, 96, 144 hours post-doseAUC from 0 to 144 hours is a measure of the whole blood concentration of the drug over time. It is used to characterize drug absorption; if AUC0-144 not available, then AUClast will be calculated.
Part 2: Maximum observed whole blood concentration (Cmax) for osivelotor pediatric formulation in whole blood0, 2, 4, 6, 8, 12, 24, 48, 72, 96, 144 hours post-doseCmax is a measure of the highest whole blood concentration of the drug over time.

Secondary

MeasureTime frameDescription
Part 1: Number of Participants With Treatment-Emergent Adverse Events (AEs)Day 1 to 28
Part 2: Number of Participants With Treatment-Emergent Adverse Events (AEs)Day 1 to 84
Part 1: Number of participants With Changes in laboratory assessments.Day 1 to Day 2 for Part 1
Part 2: Number of participants With Changes in laboratory assessments.Day 1 to Day 7 for Part 2.
Part 1: Number of Participants With Changes in Electrocardiograms (ECGs)Day 1 and Day 2
Part 2: Number of Participants With Changes in Electrocardiograms (ECGs)Day 1 and Day 7
Part 1: Number of Participants With Changes in Vital SignsDay 1 and Day 2
Part 2: Number of Participants With Changes in Vital SignsDay 1, 2 and Day 7
Part 2: Area under the Concentration-Time Curve (AUC last) for osivelotor pediatric formulation in whole blood.0, 2, 4, 6, 8, 12, 24, 48, 72, 96, 144 hours post-doseAUC from 0 hours to last value is a measure of the whole blood concentration of the drug over time. It is used to characterize drug absorption.
Part 2: Maximum observed whole blood concentration (Cmax, dose normalized, if applicable) for osivelotor pediatric formulation in whole blood0, 2, 4, 6, 8, 12, 24, 48, 72, 96, 144 hours post-doseCmax is a measure of the highest whole blood concentration of the drug over time.
Part 2: Area under the Concentration-Time Curve (AUC last, dose normalized, if applicable) for osivelotor pediatric formulation in whole blood0, 2, 4, 6, 8, 12, 24, 48, 72, 96, 144 hours post-doseAUC from 0 hours to last value is a measure of the whole blood concentration of the drug over time. It is used to characterize drug absorption.
Part 2: Area under the Concentration-Time Curve (AUC0-144, dose normalized, if applicable) for osivelotor pediatric formulation in whole blood0, 2, 4, 6, 8, 12, 24, 48, 72, 96, 144 hours post-doseAUC from 0 hours to 144 hours after dosing is a measure of the whole blood concentration of the drug over that time period. It is used to characterize drug absorption.
Part 2: Time (Tmax) to maximum observed whole blood concentration (Cmax) for osivelotor pediatric formulation in whole blood0, 2, 4, 6, 8, 12, 24, 48, 72, 96, 144 hours post-doseTmax is a measure of the time it takes to get to the highest whole blood concentration of the drug over time.

Contacts

CONTACTPfizer CT.gov Call Center
ClinicalTrials.gov_Inquiries@pfizer.com1-800-718-1021
STUDY_DIRECTORPfizer CT.gov Call Center

Pfizer

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 16, 2026