What this phase means
Phase 2/3: earlier tests looked promising enough to expand. This stage asks, in a larger group, whether the treatment really works and is safe enough to seek approval.
Phase labels are FDA/ICH categories applied to the registry Phase field. They are not a finding that this study succeeded.
What the registry says happens
If you join, the listed intervention(s) are EB-1020 (Centanafadine) 164.4 mg, EB-1020 (Centanafadine) 328.8 mg, or Placebo. The registry lists allocation as randomized. This study wants to measure the how well it works and examine the safety of two doses of EB-1020 QD XR capsule administered once daily orally in adult ADHD patients.
They plan to enroll about 630 people at Tokyo. Taking part typically means taking a study drug (or dummy pill) plus check-ins.
Official title (unrewritten)
A Phase 2/3, Multicenter, Randomized, Double-blind, Placebo-controlled, Trial to Evaluate the Efficacy and Safety of EB-1020 Once Daily QD XR Capsules Administered Orally at Low or High Dose in Adults With Attention-deficit/Hyperactivity Disorder
Interventions: EB-1020 (Centanafadine) 164.4 mg, EB-1020 (Centanafadine) 328.8 mg, Placebo
Primary outcome (registry wording): Change from baseline in Adult ADHD Investigator Symptom Rating Scale (AISRS) score at Week6