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PD-0332334

Phase 3

Generalized Anxiety Disorder | Small molecule | Psychiatry |Pfizer, Inc.|Trials Updated: Nov 16, 2012

PD-0332334 development status

Highest phase Phase 3
Registered trials 2 across 1 sponsor since Aug 2008

PD-0332334 target and mechanism

ModalitySmall molecule

Also known as imagabalin

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials4
Total Enrollment787

FDA Designations

No designations recorded

PD-0332334 clinical trials

PD-0332334 · 4 trials · 3 indications

Phase 3 1Phase 2 1Phase 1 2
NCT00542685A 10-Week Study Evaluating the Efficacy And Safety of PD 0332334 for the Treatment of Generalized Anxiety DisorderGeneralized Anxiety Disorder
COMPLETED551 Analytics
PHASE3COMPLETED
A 10-Week Study Evaluating the Efficacy And Safety of PD 0332334 for the Treatment of Generalized Anxiety Disorder
Generalized Anxiety DisorderUnlock trial analytics

Study Endpoints

Primary Endpoints

The efficacy of PD 0332334 in the treatment of GAD will be measured by the change in the Hamilton Anxiety Rating Scale (HAM-A) total scores from baseline observed following 8 weeks of double-blind treatment.
8 weeks
The safety and tolerability of PD 0332334 in subjects with GAD will be monitored in this study.
8 weeks
HAM-A Total Score
4 weeks
Maximum plasma concentration (Cmax) of PD-0332334 and time of maximum plasma concentration (Tmax). Half-life of PD-0332334 in this patient population with hemodialysis and without hemodialysis
0 to 8 days
Hemodialysis clearance of PD-0332334 from the blood, the total amount and fraction of total dose of PD-0332334 removed from the blood via hemodialysis, and the half-life of drug removal from the blood via hemodialysis
0 to 8 days
Area under the curve (AUC) of PD-0332334 from time of study medication administration to infinity (AUCinf); AUC of PD-0332334 from time of study medication administration to last quantifiable plasma concentration (AUClast).
0 to 8 days
Radioactivity parameters in plasma and whole blood - Cmax , Tmax , AUCinf, AUClast, t1/2, CL/F and V/F.
Total 14C data in blood, urine and feces
Ratio of radioactivity in red blood cells to plasma (RBC/plasma)
Cumulative recovery of radioactivity in urine and feces
Identification of metabolites in feces, plasma and urine if possible
Plasma, urine and fecal PD 0332334 pharmacokinetic parameters - Cmax, Tmax, AUClast, AUCinf, t1/2, CL/F, V/F, CLR, Ae24 and Ae24(%)

Secondary Endpoints

Response rate on the clinician-rated CGI-I at Week 1 and Week 8.
8 weeks
Change from Baseline to Week 8 on the Medical Outcomes Study-Sleep Scale (MOSS-SS) subscales.
8 weeks
Change from Baseline to Week 8 on the Sheehan Disability Scale (SDS) total score.
8 weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
PD 0332334 300 mg BIDEXPERIMENTAL -
Placebo BIDPLACEBO_COMPARATOR -
PD 0332334 225 mg BIDEXPERIMENTAL -
PD 0332334 175 mg BIDEXPERIMENTAL -
PD 0332334 250 mgEXPERIMENTAL -
PD 0332334 100 mgEXPERIMENTAL -
placeboPLACEBO_COMPARATOR -
Alprazolam extended releaseACTIVE_COMPARATOR -
PD-0332334EXPERIMENTAL -

Interventions

NameTypeDescription
PD 0332334DRUGCapsules, oral, 300 mg BID, 8 weeks with 2 week taper.
PlaceboDRUGCapsules, oral, placebo BID, 8 weeks with 2 week taper.
Alprazolam extended releaseDRUG1 mg capsule, BID for 4 weeks
PD-0332334DRUGA single, 50 mg oral dose (2 capsules) of PD-0332334 will be administered to each hemodialysis subject
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersNo
Study Sites43

Inclusion Criteria: * Diagnosis of GAD (Diagnostic and Statistical Manual-IV \[DSM-IV\], 300.02) as established by the clinician (psychiatrist or licensed clinical psychologist) who has interviewed the subject using all sources of data including the Mini International Neuropsychiatric Interview (MI...

Countries:United States
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Frequently asked questions about PD-0332334

What is PD-0332334?

PD-0332334 is an investigational small molecule developed by Pfizer, Inc. for Generalized Anxiety Disorder. It has also been studied in patients receiving renal dialysis for pharmacokinetic evaluation. The program reached Phase 3 clinical development, and all completed trials to date have been placebo-controlled, randomized, and double-blind.

What is PD-0332334 used for?

PD-0332334 was studied for the treatment of Generalized Anxiety Disorder, with the largest trial enrolling 551 patients in a 10-week Phase 3 study. A separate Phase 1 study evaluated the drug in patients receiving regular hemodialysis. It is an investigational agent and has not been established as a marketed treatment.

Who makes PD-0332334?

PD-0332334 is developed by Pfizer, Inc., which trades on the New York Stock Exchange under the ticker PFE. Pfizer sponsored the clinical program, including the Phase 3 Generalized Anxiety Disorder trial and the Phase 1 hemodialysis and radiolabeled absorption studies.

What phase is PD-0332334 in?

PD-0332334 reached Phase 3 clinical development. The Phase 3 study, NCT00542685, was a 10-week trial evaluating efficacy and safety in Generalized Anxiety Disorder that enrolled 551 patients. All three completed trials in the program have concluded, and no trials are currently active.

What clinical trials is PD-0332334 in?

PD-0332334 has been evaluated in completed trials including NCT00542685, a Phase 3 study in Generalized Anxiety Disorder with 551 patients, NCT00921063, a Phase 2 trial comparing PD 0332334 and alprazolam extended release to placebo in 222 patients, and NCT00730145, a Phase 1 hemodialysis study.

Is PD-0332334 the same as PD 0332334?

Yes, PD-0332334 and PD 0332334 refer to the same investigational compound. The difference is only formatting: one version uses a hyphen and the other uses a space. Both names appear in the registered clinical trial titles for the Pfizer Generalized Anxiety Disorder program.