Prognostic factors, treatment and outcome in adult acute lymphoblastic leukemia: Population-based studies in Sweden

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Prognostic factors, treatment and outcome in adult acute lymphoblastic leukemia : Population-based studies in Sweden

Kozlowski, Piotr, 1969- (author): Örebro universitet,Institutionen för hälsovetenskaper

Hallböök, Helene (thesis advisor): Department of Medical Sciences, Haematology, Uppsala University, Uppsala, Sweden

Åström, Maria (thesis advisor): Örebro universitet,Institutionen för hälsovetenskaper

Rijneveld, Anita W., MD, PhD (opponent): Dept of Heamatology, Erasmus MC, Rotterdam, Holland

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ISBN 9789175291215
Örebro : Örebro university, 2016
English 56 s.
Series: Örebro Studies in Medicine, 1652-4063 ; 134

Related links:: https://oru.diva-por... (primary) (Raw object); show more...; https://oru.diva-por...; https://urn.kb.se/re...; show less...

Doctoral thesis (other academic/artistic)

Abstract Subject headings

Acute lymphoblastic leukemia (ALL) has poor prognosis in older/elderly adults and in high-risk/relapsed disease. Recommended treatment of ALL was evaluated (study I-IV). Data was obtained from the Swedish Acute Leukemia registries and from patient records.I. We assessed ALL relapse treatment and outcome in 76 patients aged 15-65 years (y). Complete remission (CR) was achieved in 50/71 patients (70%). Of them, 29 underwent allogeneic hematopoietic stem cell transplantation (hSCT). Five year overall survival (OS) was 15%, but close to 50% in 19 patients <35y after hSCT.II. We studied outcome of treatment with the Hyper-CVAD protocol in 19 of 24 patients with T-ALL aged 18-72y. CR was reached in 89%, but 5y leukemia-free survival was only 29%, and 20% in 15 patients not transplanted in CR1. Six patients received hSCT in CR2. Finally, 5y OS in all 19 patients was 47%. The only negative prognostic factor found was age ≥35y.III. We evaluated minimal residual disease (MRD) monitoring in 35 patients with Philadelphia (Ph) negative B-ALL aged 46-79y and treated with the ABCDV protocol. The CR rate was 91%. MRD was measured by flow cytometry in 73% in CR1 (MRD1) and omitted in those >70y or with high-risk ALL. Five patients received hSCT (only one due to MRD). Five year OS in the whole cohort was 47%. Continuous CR but not OS was improved in patients with MRD1 <0.1 %.IV. We studied 155 patients with ALL (Ph+ in 35%) aged 55-85y and treated with remission induction/palliation (124/31). Both, intensive, and palliative treatment resulted in the CR rates of 70/83/16% and 3y OS of 26/32/3%. OS was negatively influenced by age and platelet count ≤35×109/L (but not Ph+). OS was not enhanced by introduction of an age-adapted protocol.We concluded that intensive treatment with subsequent allogeneic hSCT is the most reasonable option in younger patients with ALL recurrence (I). Hyper-CVAD has low relapse-preventing efficacy (II). MRD guided intensification is probably feasible in only a minority of older patients (III). Prognosis in elderly ALL is poor, but no longer impaired by Ph+ (IV).

Subject headings

MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Hematologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Hematology (hsv//eng)
MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Allmänmedicin (hsv//swe)
MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- General Practice (hsv//eng)

Keyword

Acute Lymphoblastic Leukemia
adult
chemotherapy
prognosis
population-based
Onkologi
Oncology

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vet (subject category)
dok (subject category)

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MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Clinical Medicin ...; and Cancer and Oncol ...

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Clinical Medicin ...; and Hematology

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Clinical Medicin ...; and General Practice

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