A Phase I study of the safety, pharmacokinetics and efficacy of navitoclax plus docetaxel in patients with advanced solid tumors

Future Oncol. 2021 Jul;17(21):2747-2758. doi: 10.2217/fon-2021-0140. Epub 2021 Apr 14.

Abstract

Aim: This Phase I study investigated safety of navitoclax and docetaxel in patients (n = 41) with advanced solid tumors. Patients & methods: Two navitoclax plus docetaxel dosing schedules (21 and 28 days) were evaluated. Maximum tolerated dose, dose-limiting toxicities and preliminary antitumor activity were assessed. Results: Ten (24%) patients experienced dose-limiting toxicities; dose-escalation cohorts: n = 7 (21-day schedule: n = 5; 28-day schedule: n = 2) and 21-day expanded safety cohort: n = 3. Navitoclax 150-mg days 1-5 every 21 days with docetaxel 75 mg/m2 day 1 was the maximum tolerated dose and optimal schedule. Adverse events included thrombocytopenia (63%), fatigue (61%), nausea (59%) and neutropenia (51%). Four confirmed partial responses occurred. Conclusion: Navitoclax 150-mg orally once/day was safely administered with docetaxel. Myelosuppression limited dose escalation; antitumor activity was observed. Clinical trial registration: NCT00888108 (ClinicalTrials.gov).

Keywords: ABT-263; Phase I; apoptosis; docetaxel; navitoclax.

Publication types

  • Clinical Trial, Phase I
  • Multicenter Study

MeSH terms

  • Administration, Oral
  • Adult
  • Aged
  • Aged, 80 and over
  • Aniline Compounds / administration & dosage
  • Aniline Compounds / adverse effects*
  • Aniline Compounds / pharmacokinetics
  • Antineoplastic Combined Chemotherapy Protocols / administration & dosage
  • Antineoplastic Combined Chemotherapy Protocols / adverse effects*
  • Antineoplastic Combined Chemotherapy Protocols / pharmacokinetics
  • Docetaxel / administration & dosage
  • Docetaxel / adverse effects*
  • Docetaxel / pharmacokinetics
  • Drug Administration Schedule
  • Fatigue / chemically induced
  • Fatigue / epidemiology
  • Female
  • Humans
  • Male
  • Maximum Tolerated Dose
  • Middle Aged
  • Nausea / chemically induced
  • Nausea / epidemiology
  • Neoplasms / drug therapy*
  • Neutropenia / chemically induced
  • Neutropenia / epidemiology
  • Sulfonamides / administration & dosage
  • Sulfonamides / adverse effects*
  • Sulfonamides / pharmacokinetics
  • Thrombocytopenia / chemically induced
  • Thrombocytopenia / epidemiology

Substances

  • Aniline Compounds
  • Sulfonamides
  • Docetaxel
  • navitoclax

Associated data

  • ClinicalTrials.gov/NCT00888108

Grants and funding