SVRd for the Treatment of Newly Diagnosed Multiple Myeloma Patients Presenting With Extramedullary Disease

The purpose of this study is to evaluate the efficacy and safety of SVRd in NDMM patients presenting with extramedullary disease.

Inclusion Criteria: 1. Men and women aged with18-75 years old. 2. Confirmed diagnosis of Multiple Myeloma(MM) (IMWG consensus guidelines) 3. Newly diagnosed patients presenting with extramedullary disease (EMD) including solely paraskeletal plasmacytoma, plasmacytoma of soft tissue and other special sites detected by physical exam and confirmed by CT/MRI/PET-CT and/or biopsy (≥2cm). 4. ANC≥1.0\*10\^9/L, HGB≥75\*10\^9/L, PLT≥50\*10\^9/L (≥50% of bone marrow nucleated cells are plasma cells). 5. Patients whose expecting survival time will be more than 3 months. 6. Without active infectious disease. 7. Female patients of child-bearing potential must have a negative serum pregnancy test at screening and all patients agree to use two reliable methods of contraception for six months after their last dose of medication. 8. Willingness and ability to comply with scheduled visits, treatment plans, laboratory tests and other study procedures. 9. Each patient must sign an informed consent form (ICF) indicating that he or she understands the purpose of and procedures required for the study and are willing to participate in the study. Exclusion Criteria: 1. Patients who have HBV, HCV, and other acquired and congenital immunodeficiency diseases. 2. Patients who have grade 2 or higher of peripheral neuropathy or neuralgia according to the definition of NCI CTCAE version 4.0. 3. Plasma cell leukemia. 4. Serious thrombotic events. 5. Active, unstable cardiovascular dysfunction: a. symptomatic ischemia; b. Uncontrolled, clinically significant conduction abnormalities (except antiarrhythmic ventricular tachycardia), but patients with first-degree atrioventricular block or asymptomatic left anterior bundle/right fascicular block cannot be excluded. c. New York Heart Association (NYHA) Class III - IV or left ventricular ejection fraction (LVEF) \