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The potential benefits of participating in early‐phase clinical trials in multiple myeloma: long‐term remission in a patient with relapsed multiple myeloma treated with 90 cycles of lenalidomide and bortezomib

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We present the case of a woman with relapsed multiple myeloma (MM) who received combination lenalidomide and bortezomib therapy for 90 cycles followed by continuous lenalidomide monotherapy and has completed over 100 cycles of treatment to date. The patient was diagnosed with advanced‐stage, symptomatic MM in 2001. Following a partial response (PR) to dexamethasone in combination with pamidronate and thalidomide, the patient underwent protocol‐directed non‐myeloablative allogeneic bone marrow transplantation from her matched sibling donor the following year. In 2004, the patient relapsed and was enrolled in a phase I, dose‐escalation trial of lenalidomide plus bortezomib for relapsed and refractory MM. After eight cycles of study treatment, the patient achieved a minimal response. The patient received a total of 90 cycles of treatment with lenalidomide 5 mg given for 14 d every 21 d, and 1 mg/m2 of bortezomib initially given on days 1, 4, 8, and 11 for the first 20 cycles, and then weekly thereafter on days 1 and 8. Bortezomib was discontinued after 90 cycles, and the patient continued to receive lenalidomide monotherapy. As of cycle 100, the patient achieved a PR. Currently, she is clinically stable with response sustained for over 7 yrs. Therapy has been well tolerated with no significant long‐term toxicity; no dose reductions of lenalidomide and bortezomib were required. The excellent tolerability of this steroid‐free approach and the durable response seen underscore the potential benefits of participating in early‐phase clinical trials evaluating novel therapies and new drug combinations. This case further supports that combination treatment with lenalidomide and bortezomib is an effective therapy in the management of patients with relapsed and refractory MM.
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Document Type: Research Article

Affiliations: 1: Dana-Farber Cancer Institute, Jerome Lipper Multiple Myeloma Center, Boston, MA 2: Boston VA Healthcare System, Boston, MA, USA

Publication date: May 1, 2012

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