A Case of Recurrence/Refractory Mediastinal Hodgkin's Lymphoma Relapsed After Allogeneic Hematopoietic Stem Cell Transplantation: Immunotherapy Brings Hope

Hodgkin lymphoma (HL), is a B-cell lymphoma. HL is a common hematological malignancy, mostly seen in young and middle-aged people. According to NCCN guidelines, common treatment options include ABVD, BEACOPP, StandfordV, etc. Most HL have a good prognosis and even can be cured. However, some Refractory / Recurrent (R/R) HL, continue to progress during treatment or even relapse after the completion of a complete chemotherapy course 3 months. At this time, the best treatment for R/R HL is high-dose chemotherapy / Autologous Hematopoietic Stem Cell Transplantation (HDC/HSCT). This paper reports a case of Recurrence/Refractory (R/R) mediastinal Hodgkin's lymphoma that relapsed after Allogeneic Hematopoietic Stem Cell Transplantation. After receiving a variety of treatments, including chemotherapy, radiotherapy, autologous hematopoietic stem cell transplantation and so on, no long-term sustained remission was achieved. Traditional chemotherapy regimen has not brought ideal therapeutic effect to patients, but the rapid development of immunotherapy in recent years has brought new hope to patients. Finally sustained remission was achieved under the treatment of Brentuximab Vedotin combined with PD-1 inhibitor. This paper combined with the literature reports and discussed the clinical characteristics, treatment process and related experience and thinking methods of immunotherapy related to PD-1 inhibitors in this refractory and easy-to-relapse case. To provide more clinical data for the application of immunotherapy in R/R HL.