Impact of low-dose involved-field radiation therapy on pediatric patients with lymphocyte-predominant Hodgkin lymphoma treated with chemotherapy: A report from the Children's Oncology Group

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Abstract

Background

Treatment of pediatric lymphocyte-predominant Hodgkin lymphoma (LPHL) is controversial but has typically consisted of both chemotherapy and radiation. Radiation therapy is associated with potential late effects in children and adolescents. We examined the impact of radiation therapy on long-term outcome of patients with LPHL treated on CCG-5942, a large pediatric cooperative group study of Hodgkin lymphoma (HL).

Procedure

Eighty-two patients with LPHL were registered on CCG-5942. Fifty-two patients (63%) received chemotherapy alone; 29 patients (35%) received chemotherapy followed by involved-field radiation therapy (IFRT).

Results

The median follow-up of the LPHL patients is 7.7 years; 63 patients (77%) have >5 years of follow-up. The 5-year event-free survival (EFS) and overall survival (OS) were 97% and 100%. Two relapses occurred, both in patients who did not receive IFRT. There were no significant differences in EFS or OS between patients who received or did not receive IFRT.

Conclusions

This subset analysis demonstrates the chemosensitivity of pediatric LPHL. Patients who had a complete response to chemotherapy had an excellent EFS and OS without the addition of radiotherapy. Pediatr Blood Cancer 2012; 59: 1284–1289. © 2012 Wiley Periodicals, Inc.

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