Overview Study Evaluating Effexor XR in Elderly Patients With Major Depression. Status: Completed Trial end date: 1969-12-31 Target enrollment: Participant gender: Summary Phase III study evaluating Effexor XR in elderly patients with major depression. Phase: Phase 3 Details Lead Sponsor: Wyeth is now a wholly owned subsidiary of PfizerTreatments: Venlafaxine Hydrochloride