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PF-03654746

Phase 2

Attention Deficit Hyperactivity Disorder | Small molecule | Psychiatry |Pfizer, Inc.|Last Updated: Feb 19, 2016

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment66

FDA Designations

No designations recorded

Clinical trial landscape

PF-03654746 · 2 trials · 3 indications

Phase 2 2
NCT01006122A Study Of A Novel Compound For Excessive Daytime Sleepiness Associated With NarcolepsyExcessive Daytime Sleepiness
COMPLETED95 Analytics
NCT00531752A Study to Evaluate the Efficacy and Safety of Two Doses of PF-03654746 in Adults With Attention Deficit Hyperactivity Disorder (ADHD).Attention Deficit Hyperactivity Disorder
COMPLETED66 Analytics
PHASE2COMPLETED
A Study Of A Novel Compound For Excessive Daytime Sleepiness Associated With Narcolepsy
Excessive Daytime SleepinessUnlock trial analytics
PHASE2COMPLETED
A Study to Evaluate the Efficacy and Safety of Two Doses of PF-03654746 in Adults With Attention Deficit Hyperactivity Disorder (ADHD).
Attention Deficit Hyperactivity DisorderUnlock trial analytics

Study Endpoints

Primary Endpoints

Change From Baseline in Maintenance of Wakefulness Test (MWT) Score at Day 21 of Stable Dosing Phase
Baseline, Day 21 of stable dosing phase

MWT measured ability of participant to remain awake. Participants were instructed to try and remain awake during series of six 20-minute periods in a semi-recumbent position in dark room. Each period was terminated immediately after sleep onset or at end of 20 minutes if no sleep occurred. Poorest outcome was 0 minute the best was 20 minutes.

Change From Baseline in Adult Attention Deficit Hyperactivity Disorder (ADHD) Investigator Symptom Rating Scale (AISRS) Total Score at Week 3
Baseline, Week 3

AISRS: an 18-item scale administered by the investigator. It included 9 items that evaluated symptoms of inattention and 9 items that evaluated symptoms of impulsivity and hyperactivity. Each item was rated from 0 (none) to 3 (severe). AISRS total score was calculated as sum of all the items on the scale and ranged from 0 to 54. A higher score corresponded to a worse severity of ADHD.

Secondary Endpoints

Change From Baseline in Epworth Sleepiness Scale (ESS) Total Score at Day 5, 10, 15, 20 of Titration Phase and Day 7, 14, 21 of Stable Dosing Phase
Baseline, Day 5, 10, 15, 20 of titration phase; Day 7, 14, 21 of stable dosing phase
Change From Baseline in Brief Fatigue Inventory (BFI) Global Score at Day 5, 10, 15, 20 of Titration Phase and Day 7, 14, 21 of Stable Dosing Phase
Baseline, Day 5, 10, 15, 20 of titration phase; Day 7, 14, 21 of stable dosing phase
Change From Baseline in Cataplexy Episodes at Day 7, 14, 21 of Stable Dosing Phase
Baseline, Day 7, 14, 21 of stable dosing phase
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelCROSSOVER
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
PlaceboPLACEBO_COMPARATOR -
PF-03654746ACTIVE_COMPARATORAt the end of the second arm of the study, the patient will have completed the study and have a 7-10 day follow-up visit.
Flexible DoseEXPERIMENTAL -
Fixed DoseEXPERIMENTAL -

Interventions

NameTypeDescription
PlaceboDRUGPatients receiving placebo will undergo the same procedures as those receiving active treatment. Each patient will receive matching placebo tablets in a fixed dose escalation schedule beginning at 0.25 mg QD for 5 days; then up to 0.50 mg QD for another 5 days; and up to 1.0 mg QD for an additional 5 days. At the end of this fixed titration schedule, the patient will either stay at 1.0 mg; decrease to 0.5 mg or increase to 2.0 mg based upon the clinicians judgment regarding efficacy and side effects at the 1.0 dose level. The patient will then remain at the determined dose for a 3 week stable dosing period, with a 7 (-2/+ 9) day wash out and then crossover to repeat the same sequence for the second arm of the study.
PF-03654746DRUGEach patient will receive PF-03654746 tablets in a fixed dose titration schedule beginning at 0.25 mg QD for 5 days; then up to 0.50 mg QD for another 5 days; and up to 1.0 mg QD for an additional 5 days. At the end of this fixed titration schedule, the patient will either stay at the 1.0 mg dose; decrease to 0.50 mg or increase to 2.0 mg based upon the clinician's judgement regarding efficacy and side effects at the 1.0 mg dose. The patient will remain at the determined dose for a 3 week stable dosing period.
Placebo capsulesDRUGDosage Form: matching placebo capsules Dosage: Subjects will take two placebo capsules each morning throughout the 3 week double-blind treatment placebo treatment period.
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Eligibility Criteria

Age Range18 Years to 55 Years
SexALL
Healthy VolunteersNo
Study Sites21

Inclusion Criteria: * ISDC diagnosis of narcolepsy * Excessive Daytime Sleepiness in association with a diagnosis of narcolepsy * An MWT (Maintenance of Wakefulness Test) average sleep latency of under 15 minutes at Baseline Exclusion Criteria: * No other diagnosed sleep disorders (e.g., sleep ap...

Countries:United States
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Frequently asked questions about PF-03654746

What is PF-03654746 used for?

PF-03654746 is an investigational small molecule being developed for excessive daytime sleepiness associated with narcolepsy and for attention deficit hyperactivity disorder (ADHD). It has been studied in Phase 2 clinical trials for both conditions, though it is not approved and remains in clinical development.

Who makes PF-03654746?

PF-03654746 is being developed by Pfizer, Inc. (NYSE: PFE). The company has sponsored Phase 2 clinical trials evaluating the drug in adults with ADHD and in patients with excessive daytime sleepiness associated with narcolepsy.

What phase is PF-03654746 in?

PF-03654746 is in Phase 2 clinical development. It has completed two Phase 2 trials, one in adults with ADHD and one in patients with excessive daytime sleepiness associated with narcolepsy. The drug is investigational and has not been approved by regulatory authorities.

What clinical trials is PF-03654746 in?

PF-03654746 has been studied in two completed Phase 2 trials: NCT00531752, which evaluated two doses in adults with ADHD (66 participants), and NCT01006122, which evaluated the drug for excessive daytime sleepiness associated with narcolepsy (95 participants). Both trials were randomized, double-blind, and placebo-controlled.

Is PF-03654746 the same as another drug?

PF-03654746 is a distinct investigational compound developed by Pfizer. No alternative names have been reported for this drug in the available clinical trial information.