One could not be reached because of travel. These subjects participated in one to five periods of treatment with an average duration of 2.5 years. Seven percent of the 121 ex-patients had undergone inpatient treatment in a psychiatric hospital. The mean duration of this inpatient time was 8.2 months. The procedure common to all three therapists was the creation of a group therapy setting.
Group therapy enables the patients to interact with the therapists and with other patients.
During drug experiences, therapists played specially chosen music to support the patients' process and to give guidance and structure. Music was alternated with long periods of silence to bring about a meditative experience. Dr. Bloch worked with administrations of 125 mg of MDMA alone. Simplifying slightly, the average duration of therapy was three years and the average follow-up period was two years. This means that patients generally saw their therapist once every two weeks during their three year period of therapy.