PMID- 24919462 OWN - NLM STAT- MEDLINE DCOM- 20140926 LR - 20211021 IS - 1756-8722 (Electronic) IS - 1756-8722 (Linking) VI - 7 DP - 2014 Jun 12 TI - A phase II study of dacetuzumab (SGN-40) in patients with relapsed diffuse large B-cell lymphoma (DLBCL) and correlative analyses of patient-specific factors. PG - 44 LID - 10.1186/1756-8722-7-44 [doi] AB - BACKGROUND: Patients with DLBCL who are ineligible for or have relapsed after aggressive salvage chemotherapy have a poor prognosis. CD40 is expressed on multiple B-cell neoplasms including DLBCL and is a potential target for immunotherapy. Dacetuzumab (SGN-40), a non-blocking, partial agonist, humanized IgG1, anti-CD40 monoclonal antibody, has previously demonstrated anti-lymphoma activity in a phase I study. METHODS: A phase II study was undertaken to evaluate the rate and duration of objective responses and safety of single-agent dacetuzumab in relapsed DLBCL. Forty-six adult patients with relapsed/refractory DLBCL received up to 12 cycles of intravenous dacetuzumab using intrapatient dose-escalation to a target dose of 8 mg/kg/week in an initial 5-week cycle, followed by 4-week cycles of 8 mg/kg/week. Study endpoints included rate and duration of objective responses, safety, survival, pharmacokinetics, immunogenicity, and exploratory correlative studies. RESULTS: Overall response rate was 9% and disease control rate (complete remission + partial remission + stable disease) was 37%. Common non-hematologic adverse events (AEs) included fatigue, headache, chills, fever, and nausea. The most frequent Grade 3-4 non-hematologic AE was deep venous thrombosis (3 patients). Grade 3-4 lymphopenia (41%), neutropenia (13%), or thrombocytopenia (19%) occurred without associated infection or bleeding. Reversible ocular events, including conjunctivitis and ocular hyperemia, occurred in 8 patients (17%). Patient-specific factors, including Fc-gamma-RIIIa polymorphism, did not appear to correlate with antitumor activity. CONCLUSIONS: Single-agent dacetuzumab has modest activity and manageable toxicity in unselected patients with relapsed DLBCL. Combination regimens and robust methods of patient selection may be necessary for further development. TRIAL REGISTRATION: ClinicalTrials.gov identifier NCT00435916. FAU - de Vos, Sven AU - de Vos S AD - David Geffen School of Medicine at UCLA, University of California Los Angeles, 650 Charles E, Young Drive 11-934 Factor Bldg, Los Angeles, CA 90095-1678, USA. deVos@mednet.ucla.edu. FAU - Forero-Torres, Andres AU - Forero-Torres A FAU - Ansell, Stephen M AU - Ansell SM FAU - Kahl, Brad AU - Kahl B FAU - Cheson, Bruce D AU - Cheson BD FAU - Bartlett, Nancy L AU - Bartlett NL FAU - Furman, Richard R AU - Furman RR FAU - Winter, Jane N AU - Winter JN FAU - Kaplan, Henry AU - Kaplan H FAU - Timmerman, John AU - Timmerman J FAU - Whiting, Nancy C AU - Whiting NC FAU - Drachman, Jonathan G AU - Drachman JG FAU - Advani, Ranjana AU - Advani R LA - eng SI - ClinicalTrials.gov/NCT00435916 GR - P30 CA014520/CA/NCI NIH HHS/United States PT - Clinical Trial, Phase II PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140612 PL - England TA - J Hematol Oncol JT - Journal of hematology & oncology JID - 101468937 RN - 0 (Antibodies, Monoclonal, Humanized) RN - 0 (CD40 Antigens) RN - 0 (FCGR3A protein, human) RN - 0 (Fc gamma receptor IIA) RN - 0 (Receptors, IgG) RN - UT59FF4T5X (dacetuzumab) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Antibodies, Monoclonal, Humanized/adverse effects/pharmacokinetics/*therapeutic use MH - CD40 Antigens/immunology/metabolism MH - Chills/chemically induced MH - Dose-Response Relationship, Drug MH - Drug Administration Schedule MH - Fatigue/chemically induced MH - Female MH - Headache/chemically induced MH - Humans MH - Kaplan-Meier Estimate MH - Lymphoma, Large B-Cell, Diffuse/*drug therapy/pathology MH - Lymphopenia/chemically induced MH - Male MH - Middle Aged MH - Neoplasm Recurrence, Local MH - Polymorphism, Single Nucleotide MH - Receptors, IgG/genetics MH - Remission Induction MH - Treatment Outcome MH - Young Adult PMC - PMC4065310 EDAT- 2014/06/13 06:00 MHDA- 2014/09/27 06:00 PMCR- 2014/06/12 CRDT- 2014/06/13 06:00 PHST- 2014/03/21 00:00 [received] PHST- 2014/05/21 00:00 [accepted] PHST- 2014/06/13 06:00 [entrez] PHST- 2014/06/13 06:00 [pubmed] PHST- 2014/09/27 06:00 [medline] PHST- 2014/06/12 00:00 [pmc-release] AID - 1756-8722-7-44 [pii] AID - 10.1186/1756-8722-7-44 [doi] PST - epublish SO - J Hematol Oncol. 2014 Jun 12;7:44. doi: 10.1186/1756-8722-7-44.