title: [Complete remission of relapsed mixed cellularity Hodgkin's disease treated with rituximab].
abstract: BACKGROUND
  Cure rates of Hodgkin's disease (HD) with chemotherapy and/or radiotherapy are high. However, a few patients are refractory to treatment or relapse. We describe a patient with mixed cellularity (MC)-type HD with frequent relapses. As all Hodgkin's or Hogan-Reed-Sternberg (HRS) cells expressed CD20, treatment with the anti-CD20 monoclonal antibody rituximab was given.
  
  
  METHODS
  A 55-year-old man presented with cervical lymphadenopathy. Biopsy revealed HD of MC type in stage IVA (Ann Arbor classification). Complete remission (CR) was achieved after six cycles of doxorubicin-bleomycin-vinblastin-dacarbazine (ABVD) and cyclophosphamid-vincristine-procarbazine-prednison (COPP) regimens. The first relapse occurred 12 months later and was treated with DEXA-BEAM and autologous peripheral blood stem cell transplantation. 7 years later, the patient relapsed again. Histology confirmed the initial diagnosis. Staging revealed a stage IVA. A partial remission was induced with two further DEXA-BEAM cycles (dexamethasone, BCNU [1,3-bis(2-chloroethyl)-1-nitrosourea], ectoposide, ara-C, melphalan). 4 months later, the disease progressed. Despite treatment with gemcitabine there was no response. As all Hogan-Reed-Sternberg (HRS) cells were CD20 positive, rituximab (monoclonal antibodies) was given at a dose of 375 mg/m2 once a week for 4 weeks in an outpatient setting.
  
  
  RESULTS
  Treatment was well tolerated. A complete remission was achieved 2 months later. No infectious episodes occurred. After 30 months, the patient relapsed again. A second treatment with rituximab yielded another complete remission which was maintained for 20 months.
  
  
  CONCLUSIONS
  HRS cells are derived from germinal center B-cells in more than 90% of cases, B-cell markers being present in 80% of classical HD. CD20 expressions vary from 21-80%. A few patients with HD treated with rituximab have been reported. Most of these cases had lymphocyte-predominant HD. In our patient the safety and efficacy of rituximab in relapsed CD20-positive classical HD of an MC type was demonstrated to achieve long-lasting remission.
authors: Abteilung Hämatologie/Onkologie, Universitätsklinikum Leipzig, Leipzig, Germany. alah@medizin.uni-leipzig.de
authors: H K
authors: HK
authors: Al-Ali
authors: C
authors: C
authors: Wittekind
authors: D
authors: D
authors: Niederwieser
mesh_terms: D000911:Antibodies, Monoclonal / Q000627:therapeutic use*; D058846:Antibodies, Monoclonal, Murine-Derived; D000970:Antineoplastic Agents / Q000627:therapeutic use*; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D001761:Bleomycin / Q000627:therapeutic use; D002330:Carmustine / Q000627:therapeutic use; D003520:Cyclophosphamide / Q000627:therapeutic use; D003561:Cytarabine / Q000627:therapeutic use; D003606:Dacarbazine / Q000627:therapeutic use; D003907:Dexamethasone / Q000627:therapeutic use; D004317:Doxorubicin / Q000627:therapeutic use; D005047:Etoposide / Q000627:therapeutic use; D006689:Hodgkin Disease / Q000188:drug therapy* / Q000473:pathology / Q000628:therapy; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology; D008297:Male; D008558:Melphalan / Q000627:therapeutic use; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000188:drug therapy* / Q000473:pathology / Q000532:radiotherapy; D036102:Peripheral Blood Stem Cell Transplantation; D011241:Prednisone / Q000627:therapeutic use; D011344:Procarbazine / Q000627:therapeutic use; D012074:Remission Induction / Q000379:methods; D000069283:Rituximab; D016896:Treatment Outcome; D014747:Vinblastine / Q000627:therapeutic use; D014750:Vincristine / Q000627:therapeutic use
chemical_list: D000911:Antibodies, Monoclonal; D058846:Antibodies, Monoclonal, Murine-Derived; D000970:Antineoplastic Agents; D003561:Cytarabine; D001761:Bleomycin; D011344:Procarbazine; D000069283:Rituximab; D014750:Vincristine; D014747:Vinblastine; D005047:Etoposide; D003606:Dacarbazine; D003907:Dexamethasone; D004317:Doxorubicin; D003520:Cyclophosphamide; D008558:Melphalan; D002330:Carmustine; D011241:Prednisone