The trial is aiming to recruit up to 30 patients in each treatment arm. Some treatment arms may fill up faster than others. Once a treatment arm is full, a new medicine of the same type will take its place.
A group called the Trial Steering Committee will review the trial data at certain points, and may decide to pause recruitment, or remove a medicine, if it does not appear to be working to help the children in the trial. If this happens, a new medicine will replace it.
As the trial goes on, the research team may identify other types of treatment that they think may work for children with relapsed/refractory B-NHL. If this happens, new treatment arms could be added to the trial.