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Healthy ParticipantsPhase 1NCT04390776

Bioequivalence Study of PF-06651600 Capsules Relative to Tablets and Estimation of Food Effect on Capsules.

A Phase 1 study testing PF-06651600 in people with Healthy Participants, run by Pfizer at 2 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The study will be conducted as a Phase 1, open-label, single-dose, randomized, 2- or 3 period, cross over design in a single cohort. Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Healthy Participants
What is being tested?
PF-06651600
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
164 participants
Where
2 sitesUnited States
Study dates
28 Sep 2020to 19 Jul 2021
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Male and female participants who are healthy as determined by medical evaluation including a detailed medical history, complete physical examination, which includes BP and pulse rate measurement, clinical laboratory tests, and cardiac evaluation (including ECG).
  • BMI of 17.5 to 30.5 kg/m2; and a total body weight >50 kg (110 lb).

Who cannot join

  • Evidence or history of clinically significant hematological, renal, endocrine (including diabetes), pulmonary, gastrointestinal, cardiovascular (including hypertension and congestive heart failure), hepatic, psychiatric, neurological, dermatological, or allergic disease (including drug allergies, but excluding untreated, asymptomatic, seasonal allergies at the time of dosing).
  • Any condition possibly affecting drug absorption (eg, gastrectomy, cholecystectomy).
  • Known immunodeficiency disorder, including positive serology for human immunodeficiency virus (HIV) at screening, or a first degree relative with a hereditary immunodeficiency.
  • Participants with any of the following acute or chronic infections or infection history:
  • Any infection requiring treatment within 2 weeks prior to the dosing visit.
  • Any infection requiring hospitalization or parenteral antimicrobial therapy within 60 days of the first dose of study intervention.
Show all 9Show fewer
  • Any infection judged to be an opportunistic infection or clinically significant by the investigator, within the past 6 months of the first dose of study intervention.
  • Known active or history of recurrent bacterial, viral, fungal, mycobacterial or other infections.
  • History of recurrent (more than one episode of) localized dermatomal herpes zoster, or history of disseminated (single episode) herpes simplex or disseminated herpes zoster.

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Research Centers of America ( Hollywood )

    Hollywood, Florida, 33024

  • Prism Research LLC dba Nucleus Network

    Saint Paul, Minnesota, 55114

Other trials in United States

About this study

Official title: A PHASE 1, RANDOMIZED, OPEN-LABEL, CROSS-OVER, SINGLE-DOSE STUDY TO EVALUATE THE BIOEQUIVALENCE OF CANDIDATE CAPSULE FORMULATIONS OF PF-06651600 TO TABLETS AND ESTIMATE THE EFFECT OF HIGH-FAT MEAL ON BIOAVAILABILITY IN HEALTHY PARTICIPANTS

The study will be conducted as a Phase 1, open-label, single-dose, randomized, 2- or 3 period, cross over design in a single cohort.

Being tested
PF-06651600

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • PF-06651600Drug

    PF-06651600 100 milligrams (mg) will be provided as Tablets and Capsules.

Study groups in NCT04390776
Study groupRoleWhat they receive
Treatment Sequence 1ExperimentalPF-06651600 100 mg Tablets (fasted, Period 1), followed by Capsules (fasted, Period 2), and followed by Capsules (fed, Period 3).
Receives: Drug: PF-06651600
Treatment Sequence 2ExperimentalPF-06651600 100 mg Capsules (fasted, Period 1), followed by Tablets (fasted, Period 2), and followed by Capsules (fed, Period 3).
Receives: Drug: PF-06651600
Treatment Sequence 3ExperimentalPF-06651600 100 mg Tablets (fasted, Period 1), followed by Capsules (fasted, Period 2).
Receives: Drug: PF-06651600
Treatment Sequence 4ExperimentalPF-06651600 100 mg Capsules (fasted, Period 1), followed by Tablets (fasted, Period 2).
Receives: Drug: PF-06651600

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Area under the plasma concentration-time profile from time zero extrapolated to infinite time (AUCinf)of PF-06651600

    Measured: Day 1 pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 12, and 16 hrs, and Day 2, at 24 hours post-dose.

  2. Maximum plasma PF-06651600 concentration (C max)

    Measured: Day 1 pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 12, and 16 hrs, and Day 2, at 24 hours post-dose.

Secondary outcomes (7)
  1. Single dose time to reach maximum observed plasma concentration (Tmax) of PF-06651600

    Measured: Day 1 pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 12, and 16 hrs, and Day 2, at 24 hours post-dose.

  2. Single dose Area under the Curve from Time Zero to Last quantifiable concentration [AUC last) of PF-06651600

    Measured: Day 1 pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 12, and 16 hrs, and Day 2, at 24 hours post-dose.

  3. Single dose plasma decay half-life (t 1/2) of PF-06651600

    Measured: Day 1 pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 12, and 16 hrs, and Day 2, at 24 hours post-dose.

  4. Single dose Apparent Oral Clearance (CL/F) of PF-06651600

    Measured: Day 1 pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 12, and 16 hrs, and Day 2, at 24 hours post-dose.

  5. Single dose Apparent Volume of Distribution (Vz/F) of PF-06651600

    Measured: Day 1 pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 12, and 16 hrs, and Day 2, at 24 hours post-dose.

  6. Frequency of abnormal safety laboratory tests

    Measured: Baseline up to day 9

  7. Frequency of Adverse Events

    Measured: Baseline up to day 35

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 May 2020
  2. Study start28 Sep 2020
  3. Primary completion19 Jul 2021
  4. Study completion19 Jul 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
164 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04390776
Sponsor's protocol ID
B7981029
Status last verified
Aug 2021
First submitted
14 May 2020
Last updated
4 Aug 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No: Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.

Publications

  • Saadeddin A, Purohit V, Huh Y, Wong M, Maulny A, Dowty ME, Sagawa K. Virtual Bioequivalence Assessment of Ritlecitinib Capsules with Incorporation of Observed Clinical Variability Using a Physiologically Based Pharmacokinetic Model. AAPS J. 2024 Jan 24;26(1):17. doi: 10.1208/s12248-024-00888-9.

    PubMed 38267790

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing PF-06651600 in people with Healthy Participants, run by Pfizer at 2 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 4 Aug 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Area under the plasma concentration-time profile from time zero extrapolated to infinite time (AUCinf)of PF-06651600 (time frame: Day 1 pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 12, and 16 hrs, and Day 2, at 24 hours post-dose.). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04390776, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Aug 2021.

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