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 Crizanlizumab, or Placebo. The registry lists allocation as randomized. A phase III, multi-center, randomly assigned, compared with a dummy treatment, neither you nor the study doctors know who gets the real treatment study to assess how well it works and safety of crizanlizumab (5 mg/kg) versus dummy treatment (placebo), with or without hydroxyurea/hydroxycarbamide therapy, in adolescent and adult Sickle Cell Disease patients with frequent vaso-occlusive crises.
They plan to enroll about 354 people at 33 sites. Taking part typically means taking a study drug (or dummy pill), an infusion or injection of a biologic plus check-ins.
Official title (unrewritten)
A Phase III, Multicenter, Randomized, Placebo Controlled, Double-blind Study to Assess Efficacy and Safety of Crizanlizumab (5 mg/kg) Versus Placebo, With or Without Hydroxyurea/Hydroxycarbamide Therapy, in Adolescent and Adult Sickle Cell Disease Patients With Frequent Vaso-Occlusive Crises
Interventions: Crizanlizumab, Placebo
Primary outcome (registry wording): Annualized rate of VOCs that are healthcare professional (HCP)-managed (including VOCs leading to management at a health care facility or those managed via remote consultation) in each treatment arm