What this phase means
Phase 3: this treatment already looked useful in smaller studies. Now it is tested in a large group, often against standard care or a dummy treatment, to see if it should be approved.
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 JNJ-99245354, or Placebo. The registry lists allocation as randomized. This study wants to assess if JNJ-99245354 administered once daily works better to reduce anxiety compared to dummy treatment (placebo) when given as an additional (added on top of your current treatment) therapy in participants with generalized anxiety disorder (GAD; a mental health condition defined by uncontrollable, and excessive worry about everyday events for a long period of time).
They plan to enroll about 705 people at 4 sites. Taking part typically means taking a study drug (or dummy pill) plus check-ins.
Official title (unrewritten)
A Multicenter, Randomized, Double-blind, Parallel-group, Placebo-controlled Trial to Assess the Efficacy, Safety, and Tolerability of JNJ-99245354 (ITI-1284) as an Adjunctive Treatment in Patients With Generalized Anxiety Disorder Who Have an Inadequate Response to Generalized Anxiety Disorder Treatment and an Open-label Long-term Extension Treatment With JNJ-99245354 (ITI-1284)
Interventions: JNJ-99245354, Placebo
Primary outcome (registry wording): Change from Baseline to End of Week 6 in Hamilton Anxiety Rating (HAM-A) Scale Total Score