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PF-04455242

Phase 1

Bipolar Depression | Small molecule | Psychiatry |Pfizer, Inc.|Trials Updated: Jan 7, 2010

PF-04455242 development status

Highest phase Phase 1
Registered trials 4 across 1 sponsor since Jul 2009

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials2
Total Enrollment42

FDA Designations

No designations recorded

PF-04455242 clinical trials

PF-04455242 · 2 trials · 1 indication

Phase 1 2
NCT00988949Proof Of Mechanism Study To Determine Efficacy Of PF-04455242 In Blocking Spiradoline (PF-00345768) Stimulated Prolactin ReleaseBipolar Depression
COMPLETED24 Analytics
NCT00938301A First In Human Study To Evaluate The Safety, Tolerability And Pharmacokinetics Of PF-04455242 In Single Rising Doses In Healthy Adult VolunteersBipolar Depression
COMPLETED18 Analytics
PHASE1COMPLETED
Proof Of Mechanism Study To Determine Efficacy Of PF-04455242 In Blocking Spiradoline (PF-00345768) Stimulated Prolactin Release
Bipolar DepressionUnlock trial analytics
PHASE1COMPLETED
A First In Human Study To Evaluate The Safety, Tolerability And Pharmacokinetics Of PF-04455242 In Single Rising Doses In Healthy Adult Volunteers
Bipolar DepressionUnlock trial analytics

Study Endpoints

Primary Endpoints

Change from baseline area under the serum PRL concentration time curve from 0 to 120 minutes after intramuscular administration of PF 00345768 (spiradoline).
1 week
Safety and tolerability of single doses will include neurological assessment, vital signs and adverse event reporting during inpatient stay.
Daily
Physical exam
Screening, End of Trial (EOT), and Follow Up (F/U)
Clinical safety laboratory results
Screening, Day 0 (D0), D2, F/U
12-lead ECGs
Screening, D1, D2, F/U
Maximum plasma concentration (Cmax), time to reach maximum concentration (Tmax), area under the concentration-time curve (AUC) and terminal half-life (t1/2) .
0 hr (predose) then 0.5-1 hr for the next 12 hrs postdose on D1, then 24, 36, 48, & 72 hrs postdose

Secondary Endpoints

Change from baseline to peak of serum PRL concentration.
1 week
Change from baseline to peak of plasma ACTH concentration.
1 week
Change from baseline area under the plasma ACTH concentration time curve from 0-120 minutes after intramuscular administration of PF 00345768 (spiradoline).
1 week
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeBASIC_SCIENCE

Treatment Arms

ArmTypeDescription
PF-04455242 18 mgEXPERIMENTALSubjects in this arm will receive a single 18 mg oral dose of PF-04455242 prior to spiradoline challenge
PlaceboPLACEBO_COMPARATORSubjects in this arm will receive placebo prior to spiradoline challenge.
PF-04455242 30 mgEXPERIMENTALSubjects in this arm will receive a single 30 mg oral dose of PF-04455242 prior to spiradoline challenge.
TreatmentACTIVE_COMPARATOR2 cohorts will recieve single rising doses of PF-04455242 or placebo in a cross-over fashion.

Interventions

NameTypeDescription
PF-04455242DRUGSingle oral 18 mg dose of PF-04455242.
spiradolineDRUGSpiradoline 3.2 mcg/kg to be administered intramuscularly once on the morning of the spiradoline challenge day.
PlaceboOTHEROral placebo.
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Eligibility Criteria

Age Range21 Years to 55 Years
SexMALE
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Healthy male subjects between the ages of 21 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 l...

Countries:SingaporeUnited States
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Frequently asked questions about PF-04455242

What is PF-04455242?

PF-04455242 is an investigational small molecule developed by Pfizer, Inc. (PFE) for bipolar depression. It has been studied in Phase 1 clinical trials, including a first-in-human safety study and a proof-of-mechanism study. It is not approved for any indication and remains in early clinical development.

What is PF-04455242 used for?

PF-04455242 is being studied for the treatment of bipolar depression. It has been evaluated in Phase 1 trials that enrolled healthy adult volunteers, including a proof-of-mechanism study in Singapore and a first-in-human study in the United States. It is investigational and not approved for use.

Who makes PF-04455242?

PF-04455242 is made by Pfizer, Inc., which trades on the New York Stock Exchange under the ticker PFE. Pfizer is the developer of the compound and sponsored both Phase 1 clinical trials of the drug.

What phase is PF-04455242 in?

PF-04455242 is in Phase 1 clinical development. Two Phase 1 trials have been completed, and no active trials are ongoing. The drug has not been approved by the FDA or any regulatory agency for bipolar depression or any other indication.

What clinical trials is PF-04455242 in?

PF-04455242 has been studied in two completed Phase 1 trials. NCT00988949 was a proof-of-mechanism study in bipolar depression conducted in Singapore with 24 male healthy volunteers. NCT00938301 was a first-in-human study evaluating safety, tolerability, and pharmacokinetics in 18 healthy adult volunteers in the United States.

How does PF-04455242 work?

PF-04455242 is a small molecule studied in a proof-of-mechanism trial that measured its ability to block spiradoline (PF-00345768) stimulated prolactin release. This design was used to assess the drug's pharmacological activity in healthy volunteers. The specific molecular target of PF-04455242 is not publicly disclosed.