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PF-04457845

Phase 2

Osteoarthritis, Knee | Small molecule | Musculoskeletal |Pfizer, Inc.|Last Updated: Sep 19, 2017

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLED
Total Trials1
Total Enrollment76

FDA Designations

No designations recorded

Clinical trial landscape

PF-04457845 · 2 trials · 2 indications

Phase 2 1Phase 1 1
NCT00981357A Study To Investigate Whether PF-04457845 Is Effective In Treating Pain, Is Safe And Tolerable In Patients With Osteoarthritis Of The KneeOsteoarthritis, Knee
COMPLETED76 Analytics
PHASE2COMPLETED
A Study To Investigate Whether PF-04457845 Is Effective In Treating Pain, Is Safe And Tolerable In Patients With Osteoarthritis Of The Knee
Osteoarthritis, KneeUnlock trial analytics

Study Endpoints

Primary Endpoints

To evaluate the efficacy of PF-04457845 (administered QD) versus placebo in relieving pain as measured by the WOMAC Pain sub-score in patients with osteoarthritis of the knee
8 weeks
To evaluate the safety and tolerability of PF-04457845 in patients with osteoarthritis.
10 weeks
Plasma pharmacokinetics
up to 96 hours post dose

Secondary Endpoints

Efficacy of PF-04457845 (administered QD) versus placebo as measured by the WOMAC Stiffness domain score (Likert scale for 2 items, overall score ranges from 0-8) in patients with osteoarthritis of the knee.
8 weeks
Efficacy of PF-04457845 (administered QD) versus placebo as measured by the WOMAC Physical Function domain score (Likert scale for 17 items, overall score ranges from 0-68) in patients with osteoarthritis of the knee.
8 weeks
Efficacy of PF-04457845 (administered QD) versus placebo as measured by the WOMAC Total Score in patients with osteoarthritis of the knee.
8 weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelCROSSOVER
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
PF-04457845 followed by placeboEXPERIMENTAL -
Placebo followed by PF-04457845EXPERIMENTAL -
Naproxen followed by placeboACTIVE_COMPARATOR -
Placebo followed by NaproxenACTIVE_COMPARATOR -
Healthy adult volunteersEXPERIMENTALStandard Phase 1 normal healthy adult volunteers, age range 21-55 years and of either sex

Interventions

NameTypeDescription
PF-04457845DRUGPF-04457845 4 mg tablet once daily / matched placebo
NaproxenDRUGNaproxen 500 mg tablet twice daily / matched placebo
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Eligibility Criteria

Age Range18 Years to 75 Years
SexALL
Healthy VolunteersNo
Study Sites7

Inclusion Criteria: * Subjects must have a diagnosis of Osteoarthritis (OA) of the knee confirmed by X-ray * Subjects must be willing and able to stop all current pain therapy for the duration of study. (Limited and specific pain therapy will be available throughout the study) * Subjects can be mal...

Countries:United StatesCanadaSwedenSingapore
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Frequently asked questions about PF-04457845

What is PF-04457845 used for?

PF-04457845 is an investigational small molecule being studied for acute pain, chronic pain, and osteoarthritis of the knee. It has been evaluated in healthy volunteers and in patients with knee osteoarthritis. The drug is not approved and remains in clinical development.

Who makes PF-04457845?

PF-04457845 is being developed by Pfizer, Inc., which trades on the New York Stock Exchange under the ticker PFE. The company has sponsored clinical trials of the drug in healthy volunteers and in patients with osteoarthritis of the knee.

What phase is PF-04457845 in?

PF-04457845 has completed Phase 1 and Phase 2 clinical trials. The most advanced study was a Phase 2 trial in patients with osteoarthritis of the knee. The drug is investigational and has not been approved by regulatory authorities.

What clinical trials is PF-04457845 in?

PF-04457845 has been studied in three completed trials: NCT00836082, a Phase 1 multiple dose trial in healthy volunteers; NCT00918164, a Phase 1 bioavailability and food effect study; and NCT00981357, a Phase 2 trial in patients with osteoarthritis of the knee.

Is PF-04457845 the same as other drugs?

PF-04457845 is the primary name used in clinical trial records for this investigational drug. No alternative names have been reported in the available clinical trial information.