PMID- 18838714 OWN - NLM STAT- MEDLINE DCOM- 20081204 LR - 20101118 IS - 1527-7755 (Electronic) IS - 0732-183X (Linking) VI - 26 IP - 32 DP - 2008 Nov 10 TI - Involved-nodal radiation therapy as a component of combination therapy for limited-stage Hodgkin's lymphoma: a question of field size. PG - 5170-4 LID - 10.1200/JCO.2007.15.1001 [doi] AB - PURPOSE: Combined-modality therapy is the standard of care for limited-stage Hodgkin's lymphoma (HL). Radiation therapy has evolved from extended-field radiation therapy (EFRT) to involved-field radiation therapy (IFRT), reducing toxicity while maintaining high cure rates. Recent publications recommend a further reduction to involved-nodal radiation therapy (INRT), however, this has not been clinically validated. PATIENTS AND METHODS: We identified 325 patients with limited-stage HL, diagnosed between May 1, 1989 and April 1, 2005, and treated with chemotherapy and radiation therapy following era-specific guidelines: EFRT until 1996; IFRT from 1996 to 2001; INRT < or = 5 cm from 2001 to the present. INRT < or = 5 cm was defined as the prechemotherapy nodal volume with margins < or = 5 cm to account for physiological movement, set-up variation, and the limitations of conventional simulation and radiation therapy techniques. Exclusion criteria were age younger than 16, fluorine-18 fluorodeoxyglucose positron emission tomography, non-doxorubicin, bleomycin, vinblastine, and dacarbazine-like chemotherapy, and/or more than four chemotherapy cycles. RESULTS: At diagnosis, median age was 35 years; 52% male; stage IA 29%; stage IIA 71%. Ninety-five percent of patients received two chemotherapy cycles. The three radiation therapy groups were: EFRT, 39%; IFRT, 30%; and INRT < or = 5 cm, 31%. Median follow-up of living patients was 80 months. Median time to relapse was 37 months. Twelve relapses occurred: four after EFRT (3%); five after IFRT (5%); and three after INRT < or = 5 cm (3%; P = .9). No marginal recurrences occurred after INRT < or = 5 cm. Locoregional relapse (LRR) occurred in five patients: three after EFRT; two with IFRT; and none with INRT < or = 5 cm. At 5 years, progression-free survival (PFS) was 97%, and overall survival (OS) was 95%. At 10 years, PFS and OS were 95% and 90%, respectively. CONCLUSION: Reduction in field size appears to be safe, without an increased risk of LRR in patients receiving INRT < or = 5 cm. FAU - Campbell, Belinda A AU - Campbell BA AD - Department of Radiation Oncology, Pathology, and Medical Oncology, British Columbia Cancer Agency and the University of British Columbia, Vancouver, Canada. Bcampbell3@bccancer.bc.ca FAU - Voss, Nick AU - Voss N FAU - Pickles, Tom AU - Pickles T FAU - Morris, James AU - Morris J FAU - Gascoyne, Randy D AU - Gascoyne RD FAU - Savage, Kerry J AU - Savage KJ FAU - Connors, Joseph M AU - Connors JM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20081006 PL - United States TA - J Clin Oncol JT - Journal of clinical oncology : official journal of the American Society of Clinical Oncology JID - 8309333 SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Chemotherapy, Adjuvant MH - Disease-Free Survival MH - Female MH - Hodgkin Disease/drug therapy/mortality/pathology/*radiotherapy MH - Humans MH - Kaplan-Meier Estimate MH - Lymph Nodes/pathology/*radiation effects MH - Male MH - Middle Aged MH - Neoplasm Staging MH - Practice Guidelines as Topic MH - Radiotherapy Dosage MH - Radiotherapy, Adjuvant/adverse effects MH - Recurrence MH - Registries MH - Retrospective Studies MH - Time Factors MH - Treatment Outcome EDAT- 2008/10/08 09:00 MHDA- 2008/12/17 09:00 CRDT- 2008/10/08 09:00 PHST- 2008/10/08 09:00 [pubmed] PHST- 2008/12/17 09:00 [medline] PHST- 2008/10/08 09:00 [entrez] AID - JCO.2007.15.1001 [pii] AID - 10.1200/JCO.2007.15.1001 [doi] PST - ppublish SO - J Clin Oncol. 2008 Nov 10;26(32):5170-4. doi: 10.1200/JCO.2007.15.1001. Epub 2008 Oct 6.