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Blood, 15 October 2008, Vol. 112, No. 8, pp. 3107-3114.
Prepublished online as a Blood First Edition Paper on May 27, 2008; DOI 10.1182/blood-2008-04-149427.
Previous Article | Next Article 
Submitted April 1, 2008
Accepted May 2, 2008
Oral melphalan, prednisone, and thalidomide in elderly patients with multiple myeloma: updated results of a randomized, controlled trial
Antonio Palumbo*, Sara Bringhen, Anna M Liberati, Tommaso Caravita, Antonietta Falcone, Vincenzo Callea, Marco Montanaro, Roberto Ria, Antonio Capaldi, Renato Zambello, Giulia Benevolo, Daniele Derudas, Fausto Dore, Federica Cavallo, Francesca Gay, Patrizia Falco, Giovannino Ciccone, Pellegrino Musto, Michele Cavo, and Mario Boccadoro
Divisione di Ematologia dell’Universita di Torino, Azienda Ospedaliera S Giovanni Battista, Torino, Italy
Clinica Medica I, Policlinico Monteluce, Perugia, Italy
Cattedra e Divisione di Ematologia, Universita Tor Vergata, Ospedale S Eugenio, Roma, Italy
Unita Operativa di Ematologia Trapianto di Cellule Staminali, Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
Divisione di Ematologia, Ospedali Riuniti, Calabria, Italy
Unita Operativa Complessa di Ematologia, Ospedale Sant'Anna di Ronciglione, Ronciglione (VT), Italy
Sezione Medicina Interna e Oncologia Clinica, Policlinico di Bari, Bari, Italy
Divisione di Oncologia ed Ematologia, IRCCS, Candiolo, Italy
Divisione di Ematologia e Immunologia Clinica Universitaria, Dipartimento Medicina Clinica e Sperimentale, Padova, Italy
Ematologia, Azienda Ospedaliera San Giovanni Battista, Torino, Italy
Unita Operativa di Ematologia, Ospedale "A. Businco", Cagliari, Italy
Istituto di Ematologia, Universita di Sassari, Sassari, Italy
Servizio di Epidemiologia dei Tumori dell’Universita di Torino, Azienda Ospedaliera S. Giovanni Battista e CPO Piemonte, Torino, Italy
Ematologia e Trapianto Cellule Staminali IRCCS, Centro di Riferimento Oncologico della Basilicata, Rionero in Vulture, Italy
Istituto di Ematologia e Oncologia Medica, Policlinico S. Orsola, Bologna, Italy
* Corresponding author; email: appalumbo{at}yahoo.com.
Rationale: The initial analysis of the oral combination melphalan, prednisone, and thalidomide (MPT) in newly diagnosed patients with myeloma showed significantly higher response rate and longer progression-free survival (PFS) than did the standard melphalan and prednisone (MP) combination and suggested a survival advantage. In this updated analysis, efficacy and safety endpoints were updated. Objectives: Patients were randomly assigned to receive oral MPT or MP alone. Updated analysis was by intention-to-treat and included PFS, overall survival (OS), and survival after progression. Findings: After a median follow-up of 38.1 months, the median PFS was 21.8 months for MPT and 14.5 months for MP (P = .0004). The median OS was 45.0 months for MPT and 47.6 months for MP (P = .79). In different patient subgroups, MPT improved PFS irrespective of age, serum concentrations of b2-microglobulin, or high International Staging System. Thalidomide or bortezomib administration as salvage regimens significantly improved survival after progression in the MP group (P = .0002) but not in the MPT group (P = .34). Conclusion: These data confirm activity of MPT for PFS but failed to show any survival advantage. New agents in the management of relapsed disease could explain this finding. The study is registered at ClinicalTrial.gov, number NCT00232934.

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