Phase I trial of docetaxel given every 3 weeks and daily lenalidomide in patients with advanced solid tumors
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Purpose Cytotoxic and anti-angiogenic drugs are efficacious in malignancies. This trial was undertaken to evaluate the toxicity of a novel regimen combining docetaxel and lenalidomide. Patients and methods Patients with advanced solid tumors were eligible. Docetaxel was administered on day 1, and lenalidomide was given on days 1–14 of each 21-day cycle. Since significant myelosuppression occurred, pegfilgrastim was added on day 2. Dose limiting toxicity (DLT) was defined as ≥grade 3 non-hematologic toxicity, grade 4 neutropenia with fever, or grade 4 anemia or thrombocytopenia. Results Thirty-three patients were enrolled. DLTs included neutropenia, nausea/vomiting, and dyspnea. Of the evaluable patients, 69% had stable disease, and 3% had partial response. Conclusions This regimen was well tolerated and provided stable disease in the majority of advanced cancer patients. The recommended phase II dosing is docetaxel 75 mg/m2 on day 1, lenalidomide 25 mg on days 1–14, and pegfilgrastim 6 mg on day 2, given every 3 weeks.