12 Week Study of the Safety/Efficacy of Asenapine When Added to Lithium/Valproate in the Treatment of Bipolar Disorder (A7501008 / P05844 / MK-8274-017)
A Phase 3, Randomized, Placebo-Controlled, Double-Blinded Trial Evaluating the Safety and Efficacy of Asenapine in Subjects Continuing Lithium or Valproic Acid/Divalproex Sodium for the Treatment of an Acute Manic or Mixed Episode
4 other identifiers
interventional
326
0 countries
N/A
Brief Summary
This is a 12-week study that will test the safety and efficacy of asenapine when used in addition to lithium or valproate for subjects with acute manic or mixed episodes of Bipolar I Disorder.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Jun 2005
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
June 2, 2005
CompletedFirst Submitted
Initial submission to the registry
September 1, 2005
CompletedFirst Posted
Study publicly available on registry
September 5, 2005
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 28, 2007
CompletedStudy Completion
Last participant's last visit for all outcomes
March 22, 2007
CompletedResults Posted
Study results publicly available
September 16, 2019
CompletedMay 21, 2024
February 1, 2022
1.7 years
September 1, 2005
April 29, 2019
May 8, 2024
Conditions
Outcome Measures
Primary Outcomes (1)
Least Squares Mean Change From Baseline in Young-Mania Rating Scale (Y-MRS) Score at Day 21
The least squares mean change from baseline in Y-MRS score at day 21 was assessed. The Y-MRS is a clinician-rated instrument used for assessing the symptoms of mania, composed of 11 items. For the 11 items, scores range from 0 (symptoms absent) to, depending on the item, either 4 (7 items) or 8 (4 items). Scores for individual items add to a total score (range: 0-60), with higher scores indicating greater symptom severity. Further, decreases in symptom severity over time would be reflected by negative changes from baseline. For evaluation of this endpoint, a last observation carried forward (LOCF) analysis was used; baseline values are not eligible to be carried forward to missing post-baseline assessments.
Baseline and Day 21
Secondary Outcomes (27)
Number of Participants Experiencing an Adverse Event (AE)
Up to Day 114
Number of Participants Discontinuing Study Treatment Due to an AE
Up to Day 84
Least Squares Mean Change From Baseline in Young-Mania Rating Scale (Y-MRS) Score at Day 42
Baseline and Day 42
Least Squares Mean Change From Baseline in Young-Mania Rating Scale (Y-MRS) Score at Day 84
Baseline and Day 84
Number of Participants Achieving Young-Mania Rating Scale (Y-MRS) Responder Status
Up to Day 84
- +22 more secondary outcomes
Study Arms (2)
Asenapine
EXPERIMENTALParticipants received asenapine as a fast-dissolving sublingual (SL) tablet, given twice daily (BID). On Day 1, participants received asenapine 5 mg, BID. On Days 2 to 84, asenapine was dosed flexibly: BID at either 5 or 10 mg. Asenapine doses were up- or down-titrated based on efficacy, safety, and tolerability.
Placebo
PLACEBO COMPARATORParticipants received placebo on Days 1-84 as a fast-dissolving SL tablet, BID.
Interventions
Eligibility Criteria
You may qualify if:
- Have bipolar I disorder, current episode manic or mixed
- Treated with lithium or valproic acid
You may not qualify if:
- Have an unstable medical condition
- Clinically significant laboratory abnormality.
- Have a primary diagnosis other than bipolar I disorder.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Organon and Colead
Related Publications (1)
Szegedi A, Calabrese JR, Stet L, Mackle M, Zhao J, Panagides J; Apollo Study Group. Asenapine as adjunctive treatment for acute mania associated with bipolar disorder: results of a 12-week core study and 40-week extension. J Clin Psychopharmacol. 2012 Feb;32(1):46-55. doi: 10.1097/JCP.0b013e31823f872f.
PMID: 22198448RESULT
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Senior Vice President, Global Clinical Development
- Organization
- Merck Sharp & Dohme Corp.
Study Officials
- STUDY DIRECTOR
Medical Director
Merck Sharp & Dohme LLC
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 1, 2005
First Posted
September 5, 2005
Study Start
June 2, 2005
Primary Completion
February 28, 2007
Study Completion
March 22, 2007
Last Updated
May 21, 2024
Results First Posted
September 16, 2019
Record last verified: 2022-02
Data Sharing
- IPD Sharing
- Will not share