Aminoglutethimide in the management of metastatic breast cancer.

Aminoglutethimide (AG) with Dexamethasone has been utilized in 26 patients with metastatic breast cancer who had prior response to hormonal manipulation and/or positive estrogen receptor. Objective tumor response (CR + PR) has been achieved in 13 of 26 patients. Responses were seen in soft tissue, bone, and pleura. Six of 26 patients had stable disease and seven of 26 patients had progressive disease. The median duration of response is 12.8 months. The median survival for the responders has not been reached. Non-responding patients had a median survival of five months. Side effects were minimal, including mild lethargy, rash, fever, and weight gain. This regimen is well tolerated and can be used effectively in metastatic hormone-receptor-positive breast cancer.