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Response of astrocytoma to high‐dose methotrexate with citrovorum factor rescue

Eleven patients with astrocytoma were treated with high‐dose methotrexate (HDMTX) and citrovorum factor rescue (CFR). Clinical response was observed in eight patients, including four of four with grade 3 disease, one of one with grade 2 to 3, two of four with grade four, and one of one with unspecified low‐grade tumor. Two patients with grade 4 and one with grade 1 disease failed to respond. Six of the eight responses were documented radiographically. Three of these patients are alive and well without further treatment for periods of 15+, 4.5+, and 1.5+ years. The fourth living patient is surviving 2+ years and improving under continued treatment. The four surviving patients had recurrent grade 2 to 3 or grade 3 disease. HDMTX‐CFR is effective in astrocytoma. Its greatest value may be in recurring grade 3 disease.