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Study design and findings
The multicenter, open label, randomized, factorial, four parallel treatment group Phase 3 study evaluated the effects of the addition of L-MTP-PE to chemotherapy in patients with resectable osteosarcoma without metastatic disease. There were 672 with newly diagnosed, non-metastatic, resectable osteosarcoma included in the COG analyses.
In the analyses by the COG investigators, Event Free Survival (EFS), including secondary malignancies, after six years in patients treated with chemotherapy and L-MTP-PE was 67%, compared to 61% in patients treated only with chemotherapy and no L-MTP-PE (p=0.08). Overall Survival (OS) after six years in patients treated with chemotherapy and L-MTP-PE was 78%, compared to 70% in patients treated only with chemotherapy and no L-MTP-PE (p=0.03).
Treatment with L-MTP-PE was generally well tolerated in all phases of study. Adverse events were mild to moderate in severity and included chills, fever, nausea, vomiting, myalgia, headache, tachycardia (fast heart rate), hypo- and hypertension, fatigue and shortness of breath, all of which are consistent events with the activation of monocytes and macrophages by L-MTP-PE and the flu-like symptoms that follow cytokine release. These side effects are readily prevented or treated with acetaminophen or ibuprofen.
L-MTP-PE Regulatory Status
The L-MTP-PE New Drug Application (NDA) includes efficacy and safety
data from 678 patients with non-metastatic resectable osteosarcoma, 332 of
whom received L-MTP-PE, and from 115 patients with metastatic or
unresectable osteosarcoma, 39 of whom received L-MTP-PE, in the controlled
Phase 3 trial conducted
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| SOURCE IDM Pharma, Inc. Copyright©2007 PR Newswire. All rights reserved |