Epcoritamab monotherapy in patients with relapsed or refractory follicular lymphoma (EPCORE NHL-1): a phase 2 cohort of a single-arm, multicentre study

滤泡性淋巴瘤 医学 耐火材料(行星科学) 队列 卵泡期 肿瘤科 内科学 淋巴瘤 CD20 生物 天体生物学
作者
Kim Linton,Umberto Vitolo,Wojciech Jurczak,Pieternella J. Lugtenburg,Emmanuel Gyan,Anna Sureda,Jacob Haaber Christensen,Brian T. Hess,Hervé Tilly,Raúl Córdoba,David John Lewis,Craig Okada,Martin Hutchings,Michael Roost Clausen,Juan‐Manuel Sancho,Tara Cochrane,Sirpa Leppä,Martine E.D. Chamuleau,Diana Gernhardt,Işıl Altıntaş
出处
期刊:The Lancet Haematology [Elsevier BV]
卷期号:11 (8): e593-e605 被引量:44
标识
DOI:10.1016/s2352-3026(24)00166-2
摘要

Background A standard of care and optimal duration of therapy have not been established for patients with multiply relapsed or refractory follicular lymphoma. The aim of this study was to evaluate epcoritamab, a novel CD3 × CD20 bispecific antibody, in the third-line and later setting of follicular lymphoma. Methods EPCORE NHL-1 is a multicohort, single-arm, phase 1–2 trial conducted at 88 sites across 15 countries. Here, we report the primary analysis of patients with relapsed or refractory follicular lymphoma in the phase 2 part of the trial, which included the pivotal (dose expansion) cohort and the cycle 1 optimisation cohort. Eligible patients were aged 18 years or older, had relapsed or refractory CD20+ follicular lymphoma (grade 1–3A), an Eastern Cooperative Oncology Group performance status of up to 2, and had received at least two previous lines of therapy (including an anti-CD20 monoclonal antibody and an alkylating agent or lenalidomide). Patients were treated with subcutaneous epcoritamab 48 mg in 28-day cycles: weekly in cycles 1–3, biweekly in cycles 4–9, and every 4 weeks until disease progression or unacceptable toxicity. To mitigate the risk and severity of cytokine release syndrome, in the pivotal cohort, cycle 1 consisted of a step-up dosing regimen of a 0·16-mg priming dose on day 1 and a 0·80-mg intermediate dose on day 8, followed by subsequent 48-mg full doses and prophylactic prednisolone 100 mg; in the cycle 1 optimisation cohort, a second intermediate dose of 3 mg on day 15, adequate hydration, and prophylactic dexamethasone 15 mg were evaluated during cycle 1 to further reduce risk and severity of cytokine release syndrome. Primary endpoints were independently reviewed overall response rate for the pivotal cohort and the proportion of patients with grade 2 or worse and any-grade cytokine release syndrome for the cycle 1 optimisation cohort. Analyses were done in all enrolled patients who had received at least one dose of epcoritamab. This study is registered with ClinicalTrials.gov, NCT03625037, and is ongoing. Findings Between June 19, 2020, and April 21, 2023, 128 patients (median age 65 years [IQR 55–72]; 49 [38%] female and 79 [62%] male) were enrolled and treated in the pivotal cohort (median follow-up 17·4 months [IQR 9·1–20·9]). The overall response rate was 82·0% (105 of 128 patients; 95% CI 74·3–88·3), with a complete response rate of 62·5% (80 of 128; 95% CI 53·5–70·9). The most common grade 3–4 treatment-emergent adverse event was neutropenia in 32 (25%) of 128 patients. Grade 1–2 cytokine release syndrome was reported in 83 (65%) of 128 patients; grade 3 cytokine release syndrome was reported in two (2%). Immune effector cell-associated neurotoxicity syndrome was reported in eight (6%) of 128 patients (five [4%] grade 1; three [2%] grade 2). Between Oct 25, 2022, and Jan 8, 2024, 86 patients (median age 64 years [55–71]; 37 [43%] female and 49 [57%] male) were enrolled and treated in the cycle 1 optimisation cohort. The incidence of cytokine release syndrome was 49% (42 of 86 patients; eight [9%] grade 2; none of grade 3 or worse), with no reported immune effector cell-associated neurotoxicity syndrome. Interpretation Epcoritamab monotherapy showed clinically meaningful activity in patients with multiply relapsed or refractory follicular lymphoma, and had a manageable safety profile. Funding Genmab and AbbVie.
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