• Mohamad A Hussein, Rachid Baz, Gordan Srkalovic, Neeraj Agrawal, Revathi Suppiah, Eric Hsi, Steven Andresen, Mary Ann Karam, Janice Reed, Beth Faiman, Megan Kelly, and Esteban Walker.
• Cleveland Clinic Myeloma Research Program, Cleveland Clinic Foundation, OH 44195, USA. mashussein@runbox.us
• Mayo Clin. Proc. 2006 Jul 1; 81 (7): 889-95.

ObjectiveTo evaluate the efficacy and safety of adding thalidomide to the pegylated liposomal doxorubicin, vincristine, and decreased-frequency dexamethasone (DVd) regimen for multiple myeloma.Patients And MethodsPatients newly diagnosed as having active multiple myeloma and those with relapsed-refractory disease were studied between August 2001 and October 2003. Patients received DVd as previously described. Thalidomide was given at 50 mg/d orally and the dose increased slowly to a maximum of 400 mg/d. At the time of best response, patients received maintenance prednisone, 50 mg orally every other day, and daily thalidomide at the maximum tolerated dose for each patient. The primary end point was the rate of complete responses plus very good partial responses as defined by the European Group for Blood and Marrow Transplantation criteria and the Intergroupe Français du Myélome, respectively.ResultsOf 102 eligible patients, 53 were newly diagnosed as having multiple myeloma, and 49 had been previously treated for multiple myeloma. The complete response plus very good partial response rate was 49% and 45%, with an overall response rate of 87% and 90% for patients with newly diagnosed and previously treated multiple myeloma, respectively. Furthermore, better responses were associated with improved progression-free and overall survival. The most common grade 3 and 4 adverse events were thromboembolic events (25%), peripheral neuropathy (22%), and neutropenia (14%).ConclusionsThe addition of thalidomide to the DVd regimen significantly improves the response rate and quality of responses compared with the DVd regimen alone. This improvement is associated with longer progression-free and overall survival. The rate of observed quality responses is comparable to responses seen with high-dose therapy.

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