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<p>Preclinical studies have evaluated murine double minue 2 (MDM2) inhibitors as a treatment for adenoid cystic carcinoma (ACC), but clinical trials are lacking. This phase I trial (NCT03781986) assesses the safety and antitumor activity of an oral MDM2 inhibitor, alrizomadlin (APG-115), +/- carboplatin in TP53 wild type unresectable recurrent/metastatic salivary gland cancers (R/M SGC) with a planned 1:1 randomization to carboplatin chemotherapy. The co-primary endpoints are determination of dose-limiting toxicity (DLT) and response rate (RR) for alrizomadlin monotherapy +/- carboplatin. Secondary endpoints include safety, survival, and RR by tumor histology. After enrollment of 4 patients to combination therapy, the trial was modified to a single arm study of alrizomadlin monotherapy due to excess toxicity. 1 DLT was seen in the combination arm, all patients had ≥ G3 treatment related adverse events (TRAE). 37 patients were enrolled to alrizomadlin monotherapy. 3 DLTs were encountered, 67% of patients had ≥ G3 TRAE. The RR was 15% with median progression free survival 10.5 months. These findings demonstrate encouraging tolerability of alrizomadlin monotherapy with antitumor activity in patients with TP53 wild type SGC, especially ACC.</p>

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MDM2 Inhibition with Alrizomadlin (APG-115) in TP53 wild-type salivary gland cancers: a phase I clinical trial

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月19日

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  • Alexander T. Pearson,
  • Jameel Muzaffar,
  • Kedar Kirtane,
  • Emily Bellile,
  • Krithika Suresh,
  • Ari J. Rosenberg,
  • Francis Worden,
  • Christine H. Chung,
  • Everett Vokes,
  • J. Chad Brenner,
  • Apurva Bhangale,
  • Jon McHugh,
  • Kristy Warner,
  • Felipe Nor,
  • Jacques E. Nor,
  • Keri Innes,
  • Yifan Zhai,
  • Tommy Fu,
  • Paul L. Swiecicki

摘要

Preclinical studies have evaluated murine double minue 2 (MDM2) inhibitors as a treatment for adenoid cystic carcinoma (ACC), but clinical trials are lacking. This phase I trial (NCT03781986) assesses the safety and antitumor activity of an oral MDM2 inhibitor, alrizomadlin (APG-115), +/- carboplatin in TP53 wild type unresectable recurrent/metastatic salivary gland cancers (R/M SGC) with a planned 1:1 randomization to carboplatin chemotherapy. The co-primary endpoints are determination of dose-limiting toxicity (DLT) and response rate (RR) for alrizomadlin monotherapy +/- carboplatin. Secondary endpoints include safety, survival, and RR by tumor histology. After enrollment of 4 patients to combination therapy, the trial was modified to a single arm study of alrizomadlin monotherapy due to excess toxicity. 1 DLT was seen in the combination arm, all patients had ≥ G3 treatment related adverse events (TRAE). 37 patients were enrolled to alrizomadlin monotherapy. 3 DLTs were encountered, 67% of patients had ≥ G3 TRAE. The RR was 15% with median progression free survival 10.5 months. These findings demonstrate encouraging tolerability of alrizomadlin monotherapy with antitumor activity in patients with TP53 wild type SGC, especially ACC.