Patterns of disease progression and outcomes in a randomized trial testing ABVD alone for patients with limited-stage Hodgkin lymphoma.

Autor: Macdonald DA; National Cancer Institute of Canada Clinical Trials Group, Queens University, Kingston, Ontario, Canada., Ding K, Gospodarowicz MK, Wells WA, Pearcey RG, Connors JM, Winter JN, Horning SJ, Djurfeldt MS, Shepherd LE, Meyer RM
Jazyk: angličtina
Zdroj: Annals of oncology : official journal of the European Society for Medical Oncology [Ann Oncol] 2007 Oct; Vol. 18 (10), pp. 1680-4. Date of Electronic Publication: 2007 Sep 10.
DOI: 10.1093/annonc/mdm287
Abstrakt: Background: In the National Cancer Institute of Canada Clinical Trials Group/Eastern Cooperative Oncology Group HD.6 trial, progression-free survival was better in patients randomized to therapy that included radiation, compared to doxorubicin (Adriamycin), bleomycin, vinblastine and dacarbazine (ABVD) alone. We now evaluate patterns of progression and subsequent outcomes of patients with progression.
Patients and Methods: After a median of 4.2 years, 33 patients have progressed. Two radiation oncologists determined whether sites of progression were confined within radiation fields. Freedom from second progression (FF2P) and freedom from second progression or death (FF2P/D) were compared.
Results: Reviewers agreed for the extended (kappa = 0.87) and involved field (kappa = 1.0) analyses. Progression after ABVD alone was more frequently confined within both the extended (20/23 vs. 3/10; P = 0.002) and involved fields (16/23 vs. 2/10; P = 0.02). There was no difference in FF2P between groups [5-year estimate 99% (radiation) versus 96% (ABVD alone)] [hazard ratio (HR) = 3.14, 95% confidence interval (CI) 0.63-15.6; P = 0.14]; the 5-year estimates of FF2P/D were 94% in each group (HR = 1.04, 95% CI 0.41-2.63; P = 0.93).
Conclusion: Treatment that includes radiation reduces the risk of progressive Hodgkin lymphoma in sites that receive this therapy, but we are unable to detect differences in FF2P or FF2P/D.
Databáze: MEDLINE