Fludeoxyglucose F 18-PET/CT Imaging in Assessing Response to Chemotherapy in Patients With Newly Diagnosed Stage II, Stage III, or Stage IV Hodgkin Lymphoma

Lymphoma

stage III adult Hodgkin lymphoma, stage IV adult Hodgkin lymphoma, adult nodular sclerosis Hodgkin lymphoma, adult lymphocyte depletion Hodgkin lymphoma, adult lymphocyte predominant Hodgkin lymphoma, adult mixed cellularity Hodgkin lymphoma, stage II adult Hodgkin lymphoma

RATIONALE: Imaging procedures, such as fludeoxyglucose F 18 (FDG)-PET/CT scan, done before, during, and after chemotherapy may help doctors assess a patient's response to treatment and help plan the best treatment. It is not yet known whether FDG-PET/CT imaging is effective in assessing response to chemotherapy in patients with newly diagnosed Hodgkin lymphoma. PURPOSE: This randomized phase III trial is studying FDG-PET/CT imaging to see how well it works in assessing response to chemotherapy in patients with newly diagnosed stage II, stage III, or stage IV Hodgkin lymphoma.

OBJECTIVES: * To determine if fludeoxyglucose F 18 (FDG)-PET/CT imaging can be reproducibly and effectively applied in the early assessment of response to chemotherapy in patients with newly diagnosed stage II-IV Hodgkin lymphoma. * To determine if a negative FDG-PET/CT scan after 2 courses of ABVD chemotherapy comprising doxorubicin hydrochloride, bleomycin, vinblastine, and dacarbazine can be used to predict a group of patients for whom it is safe to reduce therapy by the subsequent omission of bleomycin, without detriment to progression-free survival. * To determine if treatment intensification in response to positive FDG-PET/CT imaging after 2 courses of ABVD chemotherapy can improve the outcome by comparison with previous series. OUTLINE: This is a multicenter study. Patients undergo fludeoxyglucose F 18 (FDG)-PET/CT imaging at baseline. Patients then receive ABVD chemotherapy comprising doxorubicin hydrochloride IV, bleomycin IV, vinblastine IV, and dacarbazine IV on days 1 and 15. Treatment repeats every 28 days for up to 2 courses in the absence of disease progression or unacceptable toxicity. Between days 22 and 25 of course 2, patients undergo a second FDG-PET/CT scan to assess response. Subsequent therapy is based on FDG-PET/CT scan results. * Negative FDG-PET/CT scan: Patients with a negative FDG-PET/CT scan are randomized to 1 of 2 treatment arms. * Arm I (ABVD chemotherapy): Patients receive ABVD chemotherapy comprising doxorubicin hydrochloride IV, bleomycin IV, vinblastine IV, and dacarbazine IV on days 1 and 15. Treatment repeats every 28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. * Arm II (AVD chemotherapy): Patients receive AVD chemotherapy comprising doxorubicin hydrochloride IV, vinblastine IV, and dacarbazine IV on days 1 and 15. Treatment repeats every 28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. * Positive FDG-PET/CT scan: Patients with a positive FDG-PET/CT scan are assigned to 1 of 2 chemotherapy regimens, as determined by the participating center. * BEACOPP-14 chemotherapy: Patients receive doxorubicin hydrochloride IV and cyclophosphamide IV on day 1; etoposide IV on days 1-3; oral procarbazine hydrochloride and oral prednisolone on days 1-7; and bleomycin IV and vincristine IV on day 8. Patients also receive filgrastim (G-CSF) subcutaneously (SC) on days 8-13 OR pegfilgrastim SC once on day 8. Treatment repeats every 14 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. * BEACOPP-escalated chemotherapy: Patients receive doxorubicin hydrochloride IV and cyclophosphamide IV on day 1; etoposide IV on days 1-3; oral procarbazine hydrochloride on days 1-7; oral prednisolone on days 1-14; and bleomycin IV and vincristine IV on day 8. Patients also receive G-CSF SC beginning on day 8 and continuing until blood counts recover OR pegfilgrastim SC once on day 8. Treatment repeats every 21 days for up to 3 courses in the absence of disease progression or unacceptable toxicity. After completion of BEACOPP chemotherapy, patients undergo a third FDG-PET/CT scan to assess response. Patients with a negative FDG-PET/CT scan receive 2 more courses of BEACOPP-14 or 1 more course of BEACOPP-escalated chemotherapy. Patients with a persistently positive FDG-PET/CT scan may receive radiotherapy to sites of FDG uptake or salvage chemotherapy, at the investigator's discretion. After completion of study therapy, patients are followed every 3 months for 1 year, every 4 months for 2 years, every 6 months for 2 years, and then annually thereafter. Peer Reviewed and Funded or Endorsed by Cancer Research UK.

United Kingdom