Case 1, 60-year-old male, acute myelocytic leukemia: Partial remission was attained after three courses of PADOC therapy. An additional course of PADOC therapy failed to achieve a complete remission (CR). On the contrary, by an AAAP therapy (Jap. J. Clin. Hematol., 19: 1332∼1340, 1978), which was performed six months later only once, a CR was attained. The patient was in a state of CR during the period of eight months without receiving any chemotherapy. He survived for 17 months.
Case 2, 46-year-old male, acute monocytic leukemia: He was initially treated with three courses of PADOC therapy and obtained a transient CR. After the relapse of leukemia, AAAP therapy was performed. After only one course of AAAP therapy, a CR was reattained, which was maintained for over eleven months. He has been alive for over 14 months.
Case 3, 51-year-old male, acute monocytic leukemia: He was initially treated with two courses of AAAP therapy, then attained a CR which was maintained for six months. The survival was 9 2/3 months.
In these three cases, leukopenia, aleukemic hemogram and hypocellularity of the bone marrow were noted prior to the chemotherapy, and the histology of the marrow showed normocellularity when CR was achieved by the AAAP therapy.
It was suggested from the experience of these three cases that AAAP therapy should be one of the chemotherapeutic procedures highly recommended for the introduction of a remission in “hypoplastic leukemia”.
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