About this trial

This is a 3-part study. The purpose of Part 1 of the study is to evaluate the efficacy, safety, and pharmacokinetic (PK) characteristics of safusidenib in participants with recurrent/progressive IDH1-mutant World Health Organization (WHO) Grade 2 or Grade 3 glioma.

The purpose of Part 2 will be to evaluate the efficacy of maintenance safusidenib treatment versus placebo in IDH1-mutant Grade 2 or Grade 3 astrocytoma with high-risk features or IDH1-mutant Grade 4 astrocytoma, following standard-of-care radiation or chemoradiation and adjuvant temozolomide. Part 2 will be randomized, double-blind, and placebo-controlled.

The purpose of Part 3 will be to evaluate the efficacy of safusidenib in participants with residual or recurrent IDH1-mutant Grade 3 oligodendroglioma who have received surgery as their only treatment. Part 3 will be an open-label single-arm cohort and will enroll participants concurrently with Part 2.

Eligibility criteria

Qualifiers

Patient must be ≥ 18 years of age at the time of signing the informed consent form (ICF).

Patient must have histologically confirmed recurrent or progressive WHO Grade 2 glioma or Grade 3 glioma with IDH1 R132H or R132C mutation confirmed by immunohistochemistry or molecular genetic testing.

The IDH mutation, and other applicable gene/molecular alterations (see Table 10-2) are determined by a validated assay as performed in Clinical Laboratory Improvement Amendments (CLIA)-certified/College of American Pathologists (CAP)-accredited or locally equivalent clinical laboratories. Prior clinical pathology report fulfilling the diagnosis criteria prior to screening with tumor samples collected is acceptable for patient enrollment in both Part 1 and Part 2.

Patient has received no more than 2 prior therapies for disease recurrence/progression.

Disqualifiers

Systemic drug therapies: within 3 weeks (lomustine within 6 weeks)

Surgery: within 3 weeks

Radiation therapy: within 12 weeks

Investigational agents: within 5 half-lives for other investigational agents

Trial design

Treatments tested in this trial

  • safusidenib
  • Placebo

Treatment groups

365 Participants
are divided into 8 treatment groups

8

Treatment groups

See each treatment group below.

Locations

57
Australia
St Vincents Hospital Sydney (Kinghorn) DarlinghurstNew South Wales, Australia
Royal North Shore Hospital Saint LeonardsNew South Wales, Australia
Royal Brisbane and Women's Hospital HerstonQueensland, Australia
Peter MacCallum Cancer Centre MelbourneVictoria, Australia

Sponsors and collaborators

Nuvation Bio Inc.

Lead sponsor

AnHeart Therapeutics Inc.

Collaborator