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Acute Leukemias - Republican Scientific Medical Library

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168 Chapter 13 · Treatment of Adult ALL According to Protocols of the German Multicenter Study Group for Adult ALL (GMALL)<br />

Table 13.1. Studies of the German Multicenter Study Group for Adult ALL<br />

Studies Period Aims Patients (~)<br />

01/81 1978–1983 Application of a modified pediatric treatment protocol in adult ALL 384<br />

13.2 Therapy for Younger (15–65 Years) Patients<br />

with B-Precursor and T-Lineage ALL<br />

13.2.1 GMALL Trials 01/81–07/03<br />

In the earlier trials (01/81–05/93), an 8-week induction<br />

therapy with two phases was scheduled with several minor<br />

modifications [1]. All patients received reinduction<br />

therapy, and maintenance therapy with methotrexate<br />

(M) and 6-mercaptopurine (MP) was scheduled for a total<br />

treatment duration of approximately 2 1/2 years. The<br />

overall treatment outline of GMALL studies 01/81–07/03<br />

is given in Fig. 13.1.<br />

Central diagnosis review (morphology/cytochemistry, immunophenotyping)<br />

02/84 1983–1987 Stratification to standard and high-risk patients<br />

Intensified consolidation therapy for high-risk patients<br />

B-NHL81 protocol for mature B-ALL<br />

569<br />

03/87 1987–1989 High-dose cytarabine/mitoxantrone as consolidation therapy<br />

in high-risk patients<br />

B-NHL84 protocol for mature B-ALL<br />

350<br />

04/89 1989–1993 Extended central diagnosis review (cytogenetics, molecular genetics)<br />

Randomized evaluation of high-dose consolidation therapy in<br />

high-risk patients<br />

Allogeneic stem cell transplantation in all high-risk patients in CR1<br />

580<br />

05/93 1993–1999 Risk-adapted, intensified consolidation therapy with 3 risk groups<br />

Randomized evaluation of conventional vs. intensified maintenance<br />

therapy<br />

Pilot study for evaluation of minimal residual disease<br />

B-NHL90 protocol for mature B-ALL and B-NHL<br />

1200<br />

06/99 1999–2003 Pilot study for GMALL 07/03 830<br />

07/03 2003–ongoing Shortened and intensified induction therapy<br />

Evaluation of a combined risk stratification according to<br />

conventional risk factors and MRD<br />

Risk-adapted postremission therapy<br />

Stem cell transplantation (allogeneic sibling, unrelated, and<br />

autologous) in high-risk and very-high-risk patients<br />

680<br />

The results of earlier trials (01/81–04/89) have been<br />

summarized previously [1–4]. Major findings referred<br />

to identification of new prognostic factors, development<br />

of subgroup-specific and risk-adapted regimens,<br />

intensified consolidation and maintenance, and extended<br />

indications for stem cell transplantation (SCT).<br />

In study 03/87 it was shown that postponed (standard<br />

risk = SR patients) or omitted (high risk = HR patients)<br />

CNS irradiation was associated with inferior overall<br />

outcome and a higher rate of CNS relapse [1]. Complete<br />

remission (CR) rates, remission duration, and<br />

survival improved stepwise with significant differences<br />

between subgroups.

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