ArticleJournal for immunotherapy of cancer2026
Anti-TIM-3 antibody TQB2618 in combination with penpulimab in relapsed or refractory classic Hodgkin lymphoma previously treated with PD-1/PD-L1 therapy: a multicenter, open-label, single-arm, phase Ib clinical trial.
Article in Journal for immunotherapy of cancer, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05400876 (Phase Ib Clinical Trial to Evaluate the Efficacy and Safety of TQB2618 Injection Combined With Penpulimab in Patients With Relapsed or Refractory Lymphoma), which is not on this map. Not yet cited in PubMed.
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Phase Ib Clinical Trial to Evaluate the Efficacy and Safety of TQB2618 Injection Combined With Penpulimab in Patients With Relapsed or Refractory Lymphoma
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Abstract
backgroundImmune checkpoint inhibitors achieve high response rates in relapsed or refractory (r/r) classical Hodgkin lymphoma (cHL), but few treatment options are available for patients who experience failure after PD-1/PD-L1 blockade. T cell immunoglobulin and mucin-domain containing-3, a key mediator of immune escape from PD-1/PD-L1 inhibition, is targeted by TQB2618, a humanized IgG
methodsThis multicenter phase 1b study was conducted from June 2022 to September 2024 at 12 sites in China (NCT05400876). The study included a dose-escalation phase in which patients with r/r lymphoma received TQB2618 (600 or 1200 mg, every 3 weeks, Q3W) plus penpulimab (200 mg, Q3W) to evaluate dose-limiting toxicities and determine the recommended phase II dose (RP2D). The subsequent dose-expansion phase enrolled patients with r/r cHL previously treated with PD-1/PD-L1 inhibitors to assess the objective response rate (ORR).
results10 patients with r/r lymphoma were enrolled in the dose-escalation phase, and TQB2618 (600 mg, Q3W) plus penpulimab (200 mg, Q3W) was selected as the RP2D. In the dose-expansion phase, 18 additional patients with r/r cHL previously treated with PD-1/PD-L1 inhibitors were enrolled. Among the total 21 r/r cHL patients, the median age was 32 years (range, 22-65), and 12 (57%) were male. The ORR was 52%, including 1 complete response and 10 partial responses. Treatment-related adverse events (TRAEs) occurred in 18 patients (86%), with grade ≥3 TRAEs in 5 (24%). The most common TRAEs (≥20%) were platelet count decreased (24%), anemia (24%), and aspartate aminotransferase increased (24%). As of the data cut-off in December 2024, the median follow-up was 14.1 months, the median duration of response and the median overall survival had not yet been reached.
conclusionsTQB2618 in combination with penpulimab was well tolerated and demonstrated promising efficacy in patients with cHL who had failed prior anti-PD-1/PD-L1 therapy, supporting its potential as a therapeutic option for this difficult-to-treat population. TRIAL REGISTRATION NUMBER: NCT05400876.
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