Journal
BIOLOGY OF BLOOD AND MARROW TRANSPLANTATION
Volume 13, Issue 7, Pages 778-789Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.bbmt.2007.02.013
Keywords
testis cancer; germ cell cancer; tandem autotransplant
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Funding
- NCI NIH HHS [U24-CA76518] Funding Source: Medline
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Tandem autotransplants are used to treat advanced testis cancer patients but their value compared to a single autotransplant is unknown. To evaluate the results of autotransplant in relapsed testicular/germ cell cancer, data from 300 patients undergoing autotransplants 1989-2002 were reported to the Center for International Blood and Marrow Transplant Research. We compared results for those patients intended to undergo tandem autotransplant procedures (N = 102) versus patients in whom a second autotransplant was not planned (N = 198). Five-year survival probability was 35% (95% confidence interval = 25%-46%) in the planned tandem transplant cohort compared to 42% (35%-49%) in the group not planned to have a second transplant (P =.29). Probability of progression-free survival at 5 years for these cohorts was 34% (25%-44%) and 38% (31%-45%), respectively (P =.50). The planned tandem autotransplant cohort had significantly more advanced disease at diagnosis and greater likelihood of cisplatin resistance. Patients intended to receive tandem transplants had a lower treatment-related mortality at I year (3% versus 10%, P =.02). Using propensity score analysis the planned tandem autotransplant cohort had significantly lower treatment-related mortality (P =.044) but no different risk of relapse (P =.541) compared to the planned single transplant cohort. Tandem autotransplants for testicular cancer are associated with less treatment-related mortality than a planned single transplant, with no differences in disease-related outcomes or overall survival at 3 years. Patient selection bias for either transplant approach, however, may affect the results of this observational study; a randomized trial is needed to determine which approach, if either, is better. (c) 2007 American Society for Blood and Marrow Transplantation.
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