This clinical trial is studying stage IA/IIA Hodgkin lymphoma, a type of blood cancer affecting the lymphatic system. The study compares two chemotherapy regimens: the standard ABVD (a combination of doxorubicin, bleomycin, vinblastine, and dacarbazine) versus A2VD (which modifies the standard regimen). Both treatments may be combined with ISRT (involved-site radiation therapy). The trial uses a PET-response adapted design, meaning that treatment decisions are guided by results from PET scans (a type of imaging that shows how tissues are functioning) after initial cycles of chemotherapy.
The purpose of this research is to determine if the modified chemotherapy regimen (A2VD) can improve how long patients remain free from disease progression compared to the standard treatment. Patients will receive either ABVD or A2VD chemotherapy, and depending on their response as shown on PET scans after two treatment cycles, they may continue with the same treatment or receive additional radiation therapy.
This study is designed for patients with early-stage Hodgkin lymphoma who have not received previous treatment for their disease. The study will monitor patients for treatment effectiveness, side effects, and long-term outcomes including the development of second cancers and heart disease.



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