Abstract:
:In a prospective multicenter study, 368 acute lymphoblastic leukemia (ALL) patients aged 15 to 65 years were treated with an intensified induction and reinduction regimen; 272 (73.9%) achieved complete remission (CR). The median remission duration (MRD) is 24.3 months, and the probability of being in continuous CR (CCR) at greater than 5 years is .37. The median survival for all 368 patients is 27.5 months, and the probability of being alive at 5 years is .39. For the 272 patients in remission the median survival is 58.4 months, and the probability of being alive at 5 years is .49. A lower CR rate was seen for patients with bleeding at diagnosis or with splenomegaly/hepatosplenomegaly. The prognostic factors unfavorable for remission duration were time to CR greater than 4 weeks v less than 4 weeks (P = .0002), age greater than 35 years v less than 35 years (P = .0008), leukocyte count greater than 30,000/microL v less than 30,000/microL (P = .0112), and null ALL v common ALL (c-ALL)/T cell ALL (T-ALL) (P = .05). The remission duration correlated strongly (P = .0001) with the number of these independent prognostic factors. In patients with none of these adverse factors the MRD has not yet been reached, with one adverse factor the MRD is 21.9 months, and with two or three adverse factors the MRD is only 9.6 months. For the immunologic subtype T-ALL, the probability of being in CCR at greater than 5 years is .55; for c-ALL, .34; and for null ALL, .24. According to these results, patients were stratified into a low-risk group with a CCR rate of .62 and a high-risk group with a CCR rate of .28, with the latter now allocated to either further chemotherapy or bone marrow transplantation in first remission.
journal_name
Bloodjournal_title
Bloodauthors
Hoelzer D,Thiel E,Löffler H,Büchner T,Ganser A,Heil G,Koch P,Freund M,Diedrich H,Rühl Hsubject
Has Abstract,Author List Incompletepub_date
1988-01-01 00:00:00pages
123-31issue
1eissn
0006-4971issn
1528-0020journal_volume
71pub_type
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