SIGMA (Safusidenib in IDH1 Mutant Glioma Maintenance)

Trial statusRecruiting
Trial phasePhase 3
Trial typeInterventional
Biological sexAll
Age18+
SponsorNuvation Bio Inc.

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.

Sponsors and collaborators

Nuvation Bio Inc.

Lead sponsor

AnHeart Therapeutics Inc.

Collaborator