RB, LGND's press release is light on the "spontaneous" response rate which may be impacted by other drugs (I believe that these advanced patients were on at least one PI). However, both studies gave a similar response rate and the end point seemed to be fair rigorous (shrinking of tumor). I looked up the BMY press release on Taxol, and it was even vaguer than LGND's. They indicated that over 50% of the KS patients benefited, but it looks like one of the end points was pain relief and response rate was relatively short:
Oncology Drugs Advisory Committee Recommends TAXOL(R) for Kaposi's Sarcoma
PRINCETON, N.J., June 23 /PRNewswire/ -- The Oncology Drugs Advisory Committee (ODAC) today recommended that the U.S. Food and Drug Administration approve TAXOL for the treatment of Kaposi's Sarcoma (KS). "As a research-based company, and a leader in the fight against AIDS, Bristol-Myers Squibb is extremely pleased by ODAC's recommendation that the FDA approve TAXOL for the treatment of Kaposi's sarcoma," said Rick Winningham, President, Bristol-Myers Squibb Oncology/ Immunology Division. "With the Committee's favorable reception of the data, we hope for a rapid FDA approval." Kaposi's sarcoma is a rare form of cancer, but it is the most frequent malignancy in HIV-infected individuals. Current estimates indicates that of the 202,535 people living with AIDS through June 1996, about 20% (or 40,000 patients) are or will be affected by Kaposi's sarcoma, according to estimates provided by the Centers for Disease Control and Prevention. In clinical studies, a high proportion of patients treated with TAXOL benefited from prolonged control of the disease. The median duration of response was 8.2 months. For all patients, the median time to progression of disease was 6.5 months. In addition, TAXOL therapy provided improved symptom reduction, including reduced edema (fluid accumulation), healing of lesions on feet, healing of facial lesions, reduction of pain, reduction of pulmonary lesions and general improvement of the patient's performance status. The most common side effects among patients in the studies was myelosuppression (a reduction in bone marrow cells). Other side effects included alopecia, arthralgia/myalgia and peripheral neuropathy. "This is another major step for the company in its ongoing commitment to explore new uses for TAXOL," said Mr. Winningham. "Further, we believe this application demonstrates our commitment to fighting HIV/AIDS. Our immunology portfolio currently includes Videx(R), ZERIT(R) and Megace(R) OS, and we are optimistic about adding TAXOL to this distinguished line of medicines." Bristol-Myers Squibb (NYSE: BMY) is a diversified worldwide health and personal care company whose principal businesses are pharmaceuticals, consumer products, nutritionals and medical devices. It is a leading maker of innovative therapies for cardiovascular, metabolic and infectious diseases, central nervous system and dermatological disorders, and cancer. The company is a leader in consumer medicines, orthopaedic devices, ostomy care, wound management, nutritional supplements, infant formulas, and hair and skin care products. The company will invest about $1.5 billion in research and development in 1997.
SOURCE Bristol-Myers Squibb Company
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