Preclinical characterization and phase 1 results of ADG106 in patients with advanced solid tumors and non-Hodgkin's lymphoma

Cell Rep Med. 2024 Feb 20;5(2):101414. doi: 10.1016/j.xcrm.2024.101414. Epub 2024 Feb 7.

Abstract

ADG106, a ligand-blocking agonistic antibody targeting CD137 (4-1BB), exhibits promising results in preclinical studies, demonstrating tumor suppression in various animal models and showing a balanced profile between safety and efficacy. This phase 1 study enrolls 62 patients with advanced malignancies, revealing favorable tolerability up to the 5.0 mg/kg dose level. Dose-limiting toxicity occurs in only one patient (6.3%) at 10.0 mg/kg, resulting in grade 4 neutropenia. The most frequent treatment-related adverse events include leukopenia (22.6%), neutropenia (22.6%), elevated alanine aminotransferase (22.6%), rash (21.0%), itching (17.7%), and elevated aspartate aminotransferase (17.7%). The overall disease control rates are 47.1% for advanced solid tumors and 54.5% for non-Hodgkin's lymphoma. Circulating biomarkers suggest target engagement by ADG106 and immune modulation of circulating T, B, and natural killer cells and cytokines interferon γ and interleukin-6, which may affect the probability of clinical efficacy. ADG106 has a manageable safety profile and preliminary anti-tumor efficacy in patients with advanced cancers (this study was registered at ClinicalTrials.gov: NCT03802955).

Keywords: ADG106; CD137/4-1BB; non-Hodgkin’s lymphoma; phase 1 trial; preclinical study; solid tumors.

Publication types

  • Clinical Trial, Phase I

MeSH terms

  • Antibodies, Monoclonal
  • Humans
  • Lymphoma, Non-Hodgkin* / drug therapy
  • Neoplasms*
  • Neutropenia*
  • Treatment Outcome

Substances

  • Antibodies, Monoclonal

Associated data

  • ClinicalTrials.gov/NCT03802955