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A Study of the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of PF-04629991 in Healthy Volunteers

A Phase 1, Randomized, Double Blind (Sponsor Open), Placebo Controlled, Single-Dose Escalation Study Evaluating the Safety, Tolerability, Pharmacokinetics and Pharmacodynamic Effect of PF-04629991 in Healthy Volunteers

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00797342
Enrollment
27
Registered
2008-11-25
Start date
2008-12-31
Completion date
2009-04-30
Last updated
2009-05-05

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

Conditions

Healthy Volunteers

Keywords

rheumatoid arthritis First in human safety pharmacokinetics pharmacodynamics

Brief summary

This study will evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of PF-04629991 in healthy subjects. Dose exploration will proceed in a step-wise manner, beginning with low doses not expected to have significant biological effects and proceeding to doses approximating or exceeding the anticipated therapeutic level. Doses to be explored may be limited by tolerability, and will not exceed levels previously shown to be tolerable in animals.

Interventions

DRUGPF-04629991

Oral; Sequential single dose escalation; three fourteen-day treatment periods per subject in the first cohort; randomized sequence of treatments (one placebo and two PF-04629991 doses)

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Healthy non-smoking men and women * body mass index 18-30 kg/m2

Exclusion criteria

* Women must not be able to have children * no current infections

Design outcomes

Primary

MeasureTime frame
Pharmacokinetics e.g., maximum concentration and area under the concentration-time curve2 weeks
Safety/Tolerability e.g., reported adverse events and safety laboratory studies2 weeks
Pharmacodynamics e.g., changes in a peripheral blood biomarker2 weeks

Countries

Belgium

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026