CClinicalTrials.gg
CompletedNCT01981681Updated Jul 17, 2014

A Phase 1 Study To Evaluate Tolerability, Safety, And Pharmacokinetics Of Topical PF-06263276 In Healthy Subjects

A Phase 1 interventional study of PF-06263726 and PF-06263726 in Healthy, sponsored by Pfizer. Completed at 1 site in Belgium. Open to participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2014-07-17.

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

Phase
Phase 1
Study type
Interventional
Enrollment
47
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
All
01

Study summary

PF-06263276 is a first in class inhibitor of the Janus kinase (JAK) enzymes 1, 2, 3 and tyrosine kinase 2 (TYK2) that is being developed for the treatment of chronic plaque psoriasis. The goal of the study is to assess the safety, local tolerability, and pharmacokinetics in healthy subjects.

02

Conditions studied

  • Healthy

Keywords

  • Phase 1
  • Randomized
  • Placebo-Controlled
  • Multiple Dose Escalation
  • Tolerability
  • Safety
  • PK
  • Topical
  • Healthy
  • PF-06263276
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

  • Healthy male and/or female subjects of non-childbearing potential between the ages of 18 and 55 years, inclusive. Healthy is defined as no clinically relevant abnormalities identified by a detailed medical history, full physical examination, including blood pressure and pulse rate measurement, 12-lead ECG and clinical laboratory tests.
  • Subjects who are willing and able to comply with scheduled visits, treatment plan, laboratory tests, and other study procedures.
  • Subjects willing to avoid tanning beds and sun exposure of the back during the study.

Exclusion criteria

Exclusion Criteria:

  • Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurologic, or allergic disease (including drug allergies, but excluding untreated, asymptomatic, seasonal allergies at time of application).
  • Subjects with any active skin condition at the application site possibly affecting drug absorption (e.g. rash, sun burn, scars, tattoos).
  • Subjects with a Draize score >0 of the test area (back) immediately prior to first treatment application.
  • Subjects using topical prescription or nonprescription drugs/over the counter preparations on the back within 14 days of the first treatment application.
  • Subjects not willing to avoid application of treatmentssuch as lotions or creams to the back throughout the study until follow-up.
05

Study design

Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
47 participants (actual)

Study arms

  • Experimental
    Cohort 1 Experimental Arm

    Drug: PF-06263726

  • Experimental
    Cohort 2 Experimental Arm

    Drug: PF-06263726

  • Experimental
    Cohort 3 Experimental Arm

    Drug: PF-06263726

  • Placebo comparator
    Cohort 3 Placebo Arm

    Drug: Placebo

  • Experimental
    Cohort 4 Experimental Arm

    Drug: PF-06263726

  • Placebo comparator
    Cohort 4 Placebo Arm

    Drug: Placebo

Interventions

  • DrugPF-06263726

    Subjects will receive dose strength of 2% PF-06263276 (1.14 mg) and matching placebo in topical formulation (2.5 µL/cm2) to be applied twice daily to two separate contralateral 20 cm2 areas on the back.

  • DrugPF-06263726

    Subjects will receive dose strength of 4% PF-06263276 (2.28 mg) and matching placebo in topical formulation (2.5 µL/cm2) to be applied twice daily to two separate contralateral 20 cm2 areas on the back.

  • DrugPF-06263726

    Subjects will receive dose strength of 2% PF-06263276 (11.4 mg) in topical formulation (2.5 µL/cm2) to be applied twice daily to a 200 cm2 area on the back.

  • DrugPlacebo

    Subjects will receive dose strength of 2% PF-06263276 (11.4 mg) matching placebo in topical formulation (2.5 µL/cm2) to be applied twice daily to a 200 cm2 area on the back.

  • DrugPF-06263726

    Subjects will receive dose strength of 4% PF-06263276 (22.8 mg) in topical formulation (2.5 µL/cm2) to be applied twice daily to a 200 cm2 area on the back.

  • DrugPlacebo

    Subjects will receive dose strength of 4% PF-06263276 (22.8 mg) matching placebo in topical formulation (2.5 µL/cm2) to be applied twice daily to a 200 cm2 area on the back.

06

What researchers measure

Primary outcomes

  1. Draize toxicity assessment score.

    Changes from baseline on Draize toxicity assessment score.

    Time frame: Day 8, Day 28

  2. Changes from baseline vital signs (blood pressure, pulse rate, oral temperature and respiration rate) and physical examinations.

    Time frame: Day 23, Day 28

  3. Changes from baseline in 12 lead electrocardiogram (ECG) parameters.

    Quantitative changes in ECG intervals.

    Time frame: Day 23, Day 28

  4. Incidence and severity of treatment emergent adverse events and withdrawals due to treatment emergent adverse events.

    Time frame: Day 23, Day 28

  5. Incidence and magnitude of treatment emergent clinical laboratory abnormalities including hematology, chemistry, fasting glucose, urinalysis.

    Time frame: Day 23, Day 28

Secondary outcomes

  1. Cohorts 3 and 4: Maximum Observed Plasma Concentration (Cmax)

    Time frame: Day 1, Day 14

  2. Cohorts 3 and 4: Time to Reach Maximum Observed Plasma Concentration (Tmax)

    Time frame: Day 1, Day 14

  3. Cohorts 3 and 4: Area Under the Curve From Time Zero to 12 hours [AUC (0-12)]

    AUC (0-t)= Area under the plasma concentration versus time curve from time zero (pre-dose) to time of last quantifiable concentration (0-t)

    Time frame: Day 1, Day 14

  4. Cohorts 3 and 4: Dose-Normalized Area Under the Curve From Time Zero to 12 hours [AUC (0-12)]

    AUC (0-t)= Area under the plasma concentration versus time curve from time zero (pre-dose) to time of last quantifiable concentration (0-t)

    Time frame: Day 1, Day 14

  5. Cohorts 3 and 4: Dose-Normalized Maximum Observed Plasma Concentration [Cmax (dn)]

    Time frame: Day 1, Day 14

  6. Cohorts 3 and 4: Plasma Decay Half-Life (t1/2)

    Plasma decay half-life is the time measured for the plasma concentration to decrease by one half.

    Time frame: Day 14

  7. Cohorts 3 and 4: Apparent Volume of Distribution (Vz/F)

    Volume of distribution is defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug. Apparent volume of distribution after oral dose (Vz/F) is influenced by the fraction absorbed.

    Time frame: Day 14

  8. Cohorts 3 and 4: Apparent Oral Clearance (CL/F)

    Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed. Clearance was estimated from population pharmacokinetic (PK) modeling. Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the blood.

    Time frame: Day 14

07

Study locations

1 site
  • Pfizer Investigational Site
    Brussels, B-1070, Belgium
08

References and documents

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 17, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01981681
Lead sponsor
Pfizer
Responsible party
Sponsor
First posted
Nov 11, 2013
Start date
Nov 2013
Primary completion
Jun 2014
Completion
Jun 2014
Last update
Jul 17, 2014

Study contacts

Pfizer CT.gov Call Center
study director · Pfizer

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2014. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion