This is an open label clinical trial to evaluate the efficacy of single autologous hematopoietic stem cell transplantation in newly diagnosed multiple myeloma patients. All patients will receive 4-6 cycles of induction therapy which includes VAD chemotherapy (vincristin, adriamycin and dexamethasone) or thalidomide/dexamethasone. After peripheral hematopoietic stem cell mobilization and apheresis, patients will receive a standard conditioning with melphalan 200mg/m2 followed by thalidomide maintenance therapy at 100-200mg orally daily starting from D+60 till disease progression or untolerable toxicity.
The clinical trial is to evaluate the efficacy of single autologous hematopoietic stem cell transplantation with standard conditioning of melphalan 200 mg/m2 followed by thalidomide maintenance in patients with newly-diagnosed myeloma after receiving 4-6 cycles of induction chemotherapy consisting of vincristin,adriamycin and dexamethasone (VAD) or thalidomide/dexamethasone between 18 to 65 years.