Experimental protection by a luteinizing hormone-releasing hormone agonist of a bone marrow nitrosourea aplasia. Preliminary observations.

D-Tryptophan-6-luteinizing hormone-releasing hormone (D-Trp6-LH-RH) applied from day -8 to day +15 before and after administration of the nitrosourea analog, N,N'-bis[N-(2-chloroethyl)-N-nitrosocarbamoyl]cysteamine (CNCC), favored bone marrow restoration, as independently evaluated by 3 observers in a double-blind fashion.