CClinicalTrials.gg
CompletedNCT03871439Updated May 20, 2020

OPEN LABEL, 2-PERIOD STUDY, TO COMPARE BIO-AVAILABILITY OF 2 DIFFERENT FORMULATIONS OF PF-05221304 IN HEALTHY ADULTS

A Phase 1 interventional study of PF-05221304 Formulation A and PF-05221304 Formulation B in Healthy, sponsored by Pfizer. Completed at 1 site in United States. Open to participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-05-20.

Sponsored by Pfizer · Phase 1, Interventional, and Basic science

From the registry’s dates

  • Primary completion was May 2019, 7 years 5 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
10
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
All
01

Study summary

The purpose of this study is to characterize the plasma pharmacokinetics of two formulations of PF 05221304 in healthy adults.

02

Conditions studied

  • Healthy
03

In context

Lead sponsor

Pfizer is the lead sponsor of 3,244 studies on the registry; 139 are open to participants now.

Of its 582 completed or terminated interventional studies of FDA-regulated products, 381 (65%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Ages of 18 and 55 years old inclusive
  • Body Mass Index (BMI) of >= 17.5 and \<= 30.4 kg/m2
  • Total body weight > 50 kg (110lb)

Exclusion criteria

Exclusion Criteria:

  • Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurological, allergic disease or clinical findings
05

Study design

Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
10 participants (actual)

Study arms

  • Experimental
    PF-05221304 Formulation A

    Drug: PF-05221304 Formulation A

  • Experimental
    PF-05221304 Formulation B

    Drug: PF-05221304 Formulation B

Interventions

  • DrugPF-05221304 Formulation A

    50mg

  • DrugPF-05221304 Formulation B

    50mg

06

What researchers measure

Primary outcomes

  1. Plasma PF-05221304 AUClast

    Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast)

    Time frame: Thirteen timepoints between 0-72 Hours

  2. Plasma PF-05221304 Cmax

    Maximum Observed Plasma Concentration (Cmax)

    Time frame: Thirteen timepoints between 0-72 Hours

Secondary outcomes

  1. Number of Subjects Experiencing an Adverse Event

    Number of Participants With Adverse Events (AEs) by Seriousness and Relationship to Treatment

    Time frame: Up to 10 weeks from screening

  2. Number of Participants With Clinical Laboratory Abnormalities

    Following parameters were analyzed for laboratory examination: hematology (hemoglobin, hematocrit, red blood cell count, platelet count, white blood cell count, total neutrophils, eosinophils, monocytes, basophils, lymphocytes); liver function (aspartate aminotransferase, alanine aminotransferase, total bilirubin, lactate dehydrogenase, alkaline phosphatase, albumin, total protein); renal function (blood urea nitrogen, creatinine, uric acid); electrolytes (sodium, potassium, chloride, calcium, phosphate, bicarbonate); clinical chemistry (glucose, creatine kinase); immunology (CRP); urinalysis (dipstick \[urine specific gravity, decimal logarithm of reciprocal of hydrogen ion activity {pH} of urine, glucose, protein, blood, ketones, bilirubin\], microscopy \[urine RBC, WBC, urate crystals, calcium, oxalate, miscellaneous \[urine mucus and leucocytes\]).

    Time frame: Up to 10 weeks from screening

  3. Number of Participants With Categorical Vital Signs Data

    Number of participants with maximum increase from Baseline in sitting Systolic Blood Pressure and Diastolic Blood Pressure of greater than or equal to 30 mmHg

    Time frame: Up to 10 weeks from screening

  4. Number of Participants With Abnormal Electrocardiogram (ECG)

    Criteria for potential clinical concern in ECG parameters: Maximum corrected QT interval (QTc) in range of 450 to less than 480 millisecond (msec), Maximum QTcB interval (Bazett's Correction) (msec) in range of 450 to less than 480 msec, Maximum QTcF interval (Fridericia's Correction) in range of 450 to less than 480 msec, maximum QTc interval increase from baseline in range of 30 to less than 60 msec and \>=60 msec.

    Time frame: Up to 10 weeks from screening

07

Study locations

1 site
  • Pfizer New Haven Clinical Research Unit
    New Haven, Connecticut 06511, United States
08

References and documents

Individual participant data

Plan to share: 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.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 20, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03871439
Lead sponsor
Pfizer
Responsible party
Sponsor
First posted
Mar 12, 2019
Start date
Mar 13, 2019
Primary completion
May 8, 2019
Completion
May 8, 2019
Last update
May 20, 2020

Study contacts

Pfizer CT.gov Call Center
study director · Pfizer

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in May 2020. You cannot join it, but the record below documents what was studied.

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