Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
| NCT ID | Title | Phase | Status | Enrollment | Velocity | Design | Start | Completion | Last Updated | Sites | Countries |
|---|---|---|---|---|---|---|---|---|---|---|---|
| NCT00610441 | Dose Finding Study in Adults With Attention-Deficit/Hyperactivity Disorder (ADHD)(174007/P05805/MK-8777-003) | PHASE2 | COMPLETED | 67 | — | — | Apr 1, 2008 | Mar 9, 2009 | Oct 24, 2018 | - | — |
The AISRS is an 18-item clinician-rated instrument for assessing the 18 core symptoms of ADHD corresponding to the Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV) diagnostic symptoms for adults. Based on the clinician's rating for each of the symptoms using a 4-point scale (0=None to 3=Severe), the AISRS total score is derived by summing the score assigned to each of the 18 symptoms. Scores can range from 0 to 54, with a higher score indicating a more severe ADHD symptoms. Baseline was defined as the score at the baseline visit prior to starting dosing for Period 1 and as the last score in the 2-week placebo wash-out period for Period 2. For the statistical analyses, the average score from Day 14 and Day 21 was used.
| Arm | Type | Description |
|---|---|---|
| MK-8777 FD→PBO | EXPERIMENTAL | Participants receive a fixed dose (FD) of MK-8777 100 mg twice each day (BID) for 3 weeks (Treatment Period 1). After a 2-week placebo washout period, participants receive a fixed dose of placebo (PBO) BID for 3 weeks (Treatment Period 2). |
| PBO→MK-8777 FD | EXPERIMENTAL | Participants receive a fixed dose of placebo BID for 3 weeks (Treatment Period 1). After a 2-week placebo washout period, participants receive a fixed dose of MK-8777 100 mg BID for 3 weeks (Treatment Period 2). |
| MK-8777 RD→PBO | EXPERIMENTAL | Participants receive rising doses (RD) of MK-8777 100-300 mg BID for 3 weeks (Treatment Period 1). After a 2-week placebo washout period, participants receive rising doses of placebo BID for 3 weeks (Treatment Period 2). |
| PBO→MK-8777 RD | PLACEBO_COMPARATOR | Participants receive rising doses of placebo BID for 3 weeks (Treatment Period 1). After a 2-week placebo washout period, participants receive rising doses of MK-8777 100-300 mg BID for 3 weeks (Treatment Period 2). |
| Name | Type | Description |
|---|---|---|
| MK-8777 | DRUG | - |
| Placebo | DRUG | - |
Inclusion Criteria: * are between 18-50 years, inclusive; * are male; or female who are non-pregnant, non-lactating and using an acceptable method of birth control (intrauterine device, double-barrier method, hormonal contraceptives); or female of non-childbearing potential if they are a) surgicall...