Abstract
The combination of lenalidomide and dexamethasone (Len-Dex) is a commonly used initial therapy for newly diagnosed multiple myeloma (MM). Although the initial response rates and toxicity are well known, long-term outcome is not well described. We studied 286 consecutive patients with newly diagnosed MM initially treated with Len-Dex. The median (range) age at diagnosis was 63 (28-92) years, 166 (58%) patients ≤65 years and 175 (61%) male. The median estimated duration on Len-Dex was 5.3 months with overall response (≥partial response) of 72%, including 26% with very good partial response or better. The median overall survival (OS) from the diagnosis was not reached (NR) and the estimated 5-year survival was 71%. The median time to first disease progression, irrespective of transplant status, was 30.2 months. Overall, 143 (50%) patients underwent stem cell transplant. The median OS was NR for patients ≤70 years and 5.8 years for the older patients (P=0.01). The 5-year OS estimate for patients in International Staging System stage 1, 2 and 3 were 82, 65, and 44% respectively. There were 21 new second malignancies after MM diagnosis (6.6%). The median survival exceeding 7 years reflects the efficacy of novel agents. The risk of second malignancies doesn't appear to be excessive in this population.
Original language | English (US) |
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Pages (from-to) | 2062-2066 |
Number of pages | 5 |
Journal | Leukemia |
Volume | 27 |
Issue number | 10 |
DOIs | |
State | Published - Oct 2013 |
Keywords
- lenalidomide
- long-term outcome
- multiple myeloma
- secondary malignancy.
ASJC Scopus subject areas
- Hematology
- Oncology
- Cancer Research