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CompletedNCT04111614Updated Jan 13, 2020

A Study to Demonstrate the Equivalence of the Tofacitinib Oral Solution to the Tablet Formulation in Healthy Participants.

A Phase 1 interventional study of Tofacitinib tablet and Tofacitinib Oral Solution 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 2020-01-13.

Sponsored by Pfizer · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Dec 2019, 6 years 9 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
12
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
All
01

Study summary

This is a Phase 1, randomized, open label, 2 period, 2 sequence, cross over, single dose study to evaluate the AUC equivalence, and safety of tofacitinib 5 mL oral solution (1 mg/mL) and 5 mg tablet in healthy participants. Participants will be randomized to 1 of the 2 treatment sequences. A total of approximately 12 healthy male and/or female (non-childbearing potential) participants will be enrolled in the study so that approximately 6 participants will be enrolled in each treatment sequence. Each treatment sequence will consist of 2 periods. In both sequences, participants will remain in the CRU for a total of 5 days and 4 nights (including Period 1 and Period 2).

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.

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Who can participate

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

Inclusion criteria

  • Male and female participants of non childbearing potential must be 18 to 55 years of age, inclusive, at the time of signing the informed consent document (ICD).
  • Male and female participants of non-childbearing potential who are overtly healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, blood pressure (BP), pulse rate, oral temperature, and 12 lead electrocardiogram (ECG).
  • Body mass index (BMI) of 17.5 to 30.5 kg/m\^2; and a total body weight greater than 50 kg (110 lb).

Exclusion criteria

Exclusion Criteria:

  • Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic (including alcoholic liver disease, nonalcoholic steatohepatitis (NASH), autoimmune hepatitis, and hereditary liver diseases), psychiatric, neurological, or allergic disease (including drug allergies, but excluding untreated, asymptomatic, seasonal allergies at the time of dosing).
  • Clinically significant infections within the past 3 months prior to the baseline visit (for example, those requiring hospitalization or parenteral antibiotics, or as judged by the investigator), evidence of any infection within the past 7 days prior to the baseline visit, history of disseminated herpes simplex infection or recurrent (>1 episode) herpes zoster or disseminated herpes zoster.
  • Any condition possibly affecting drug absorption (eg, gastrectomy).
  • History of human immunodeficiency virus (HIV) infection, hepatitis B, or hepatitis C; positive testing for HIV, hepatitis B surface antigen (HBsAg), hepatitis B core antibody (HBcAb), or hepatitis C antibody (HCVAb). Hepatitis B vaccination is allowed.
  • Malignancy or a history of malignancy, with the exception of adequately treated or excised non metastatic basal cell or squamous cell cancer of the skin or cervical carcinoma in situ.
  • A positive urine drug test.
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
12 participants (actual)

Study arms

  • Experimental
    Arm 1

    Single dose of 5 mL tofacitinib oral solution on Day 1 of Period 1 and Singe dose of 5 mg tofacitinib tablet on Day 1 of Period 2

    Drug: Tofacitinib tablet · Drug: Tofacitinib Oral Solution

  • Experimental
    Arm 2

    Single dose of 5 mg tofacitinib tablet on Day 1 of Period 1 and Singe dose of 5 mL tofacitinib oral solution on Day 1 of Period 2

    Drug: Tofacitinib tablet · Drug: Tofacitinib Oral Solution

Interventions

  • DrugTofacitinib tablet

    Single dose of tofacitinib 5 mg tablet

  • DrugTofacitinib Oral Solution

    Single 5 mL dose of tofacitinib oral solution (1 mg/mL)

06

What researchers measure

Primary outcomes

  1. AUCinf for tofacitinib oral solution and tofacitinib tablet

    Area under the curve from time zero to extrapolated infinite time for both oral solution and tofacitinib.

    Time frame: 24 hrs after study drug administration in Period 1 and Period 2

  2. AUClast for tofacitinib oral solution and tofacitinib tablet

    Area under the plasma concentration time curve from 0 to time of the last measurement of both the tofacitinib oral solution and tofacitinib tablet.

    Time frame: 24 hrs after study drug administration in Period 1 and Period 2

Secondary outcomes

  1. Cmax for tofacitinib oral solution and tofacitinib tablet

    Maximum observed plasma concentration for tofacitinib oral solution and tofacitinib tablet

    Time frame: 24 hrs after study drug administration in Period 1 and Period 2

  2. Number of subjects with adverse events (AEs).

    Number of subjects with adverse events (AEs).

    Time frame: Screening to up to 28-35 days after the last dose of study medication in Period 2.

  3. Number of subjects with laboratory tests findings of potential clinical importance

    Number of subjects with laboratory tests findings of potential clinical importance

    Time frame: Screening through Day 2 of Period 2

  4. Number of subjects with clinically significant abnormal vital signs

    Number of subjects with clinically significant abnormal vital signs

    Time frame: Screening through Day 2 of Period 2

  5. Number of subjects with clinically significant physical examination findings

    Number of subjects with clinically significant physical examination findings.

    Time frame: Screening to Day 2 of Period 2

07

Study locations

1 site
  • 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.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 13, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04111614
Lead sponsor
Pfizer
Responsible party
Sponsor
First posted
Oct 1, 2019
Start date
Oct 11, 2019
Primary completion
Dec 12, 2019
Completion
Dec 12, 2019
Last update
Jan 13, 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 Jan 2020. You cannot join it, but the record below documents what was studied.

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