Qelbree offers proven efficacy for adults with ADHD1
Statistically significant reduction in ADHD symptom scores for adults 18 to 65 years of age at EOS (6 weeks).1
Qelbree dosing: Straightforward titration in adult (ages 18-65 years) patients with ADHD1
Study P306: Titration through Week 21,2
Inclusion and study design1,3
Study: P306
Age group: 18 to 65 years of age
mITT population: 354
Study medication: Flexible dosing (200 mg/day to 600 mg/day) or matching placebo. No study visit was scheduled/performed at Week 5.
Phase III trial methodology: Randomized, DB, placebo-controlled, multicenter, parallel-group, flexible-dose study of adults 18 to 65 years of age with ADHD (Study P306).2,3
Primary endpoint: CFB in AISRS Total Score at EOS (6 weeks).3
Proven efficacy in treating ADHD at EOS (n=354)1
Primary endpoint met: Significant improvement from baseline of the AISRS Total Score to EOS2
Study P306
Study P306 results:
At baseline, the AISRS Total Score was comparable between groups: 38.5 for Qelbree and 37.6 for placebo. AISRS Total Score at EOS was significantly reduced with Qelbree vs placebo. The CFB in AISRS Total Score at EOS was -15.5 for Qelbree and -11.7 for placebo.1
Secondary endpoint: Symptom score breakout for inattention and hyperactivity/impulsivity subscales at EOS (6 weeks)2
60% of adults titrated to the maximum dose at EOS3
Study P306 allowed for proactive titration to ensure each patient reached their ideal dose for symptom control.
504 mg/day was the mean dose at EOS (6 weeks)1
Qelbree OLE trial: Long‑term safety and efficacy data in adult population
Long-term safety and efficacy trial of Qelbree in adult patients (n=159)2
OLE study (P311): Qelbree 200 mg/day to 600 mg/day2
Methodology: Open-label, long-term, multicenter, flexible dose study of Qelbree in adults with ADHD who completed Study P306. Subjects received Qelbree 200 mg/day during the first 2 weeks of the study. After Visit 2, Qelbree could be titrated up or tapered by 50 mg increments based on response and tolerability (200 mg/day to 600 mg/day). The number of patients at each time point was: (n=159) at the start of OLE, (n=112) at Week 12, and (n=51) at Week 52. After Week 12, subjects were allowed to use certain approved concomitant ADHD medications (n=9).2
Primary objective: Long-term safety data2
Secondary objective: Efficacy data during open-label use2
OLE Study P311: Mean change from baseline in AISRS Total Score (overall mean baseline was 38.1) n=1592
- Data and calculations from patients in the OLE are descriptive only; there is no placebo group from which to draw a comparison of changes from baseline in AISRS Total Score or make any other long-term safety or efficacy conclusions2
- Enrollment in the OLE safety trial was temporarily closed due to COVID-19 pandemic restrictions; therefore, some subjects did not roll over into the OLE immediately after the DB Week 6 (EOS) visit2
Abbreviations: ADHD, attention-deficit/hyperactivity disorder; AE, adverse event; AISRS, ADHD Investigator Symptom Rating Scale; CFB, change from baseline; DB, double blind; EOS, end of study; LS mean, least-squares mean; mITT, modified intent to treat; OLE, open-label extension; SE, standard error.
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