Safety and Efficacy Study of Safusidenib in Participants With IDH1-Mutant Glioma Who Discontinued Vorasidenib Treatment Due to Progressive Disease

July 9, 2026 updated by: Nuvation Bio Inc.

A Phase 2, Multicenter, Clinical Study to Evaluate the Efficacy and Safety of Safusidenib Erbumine in Participants With Isocitrate Dehydrogenase 1 (IDH1)-Mutant Glioma Who Discontinued Vorasidenib Treatment Due to Progressive Disease

This study will include up to 40 participants with Grade 2 or Grade 3 IDH1-mutant glioma who have undergone surgery and received vorasidenib as their only treatment, experienced radiographic disease progression on vorasidenib (confirmed by Blinded Independent Central Review [BICR] per modified Response Assessment in Neuro-Oncology [RANO] 2.0), and are not in need of immediate chemotherapy or radiotherapy.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

40

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Key Inclusion Criteria:

  • Histologically confirmed Grade 2 or 3 IDH-mutant astrocytoma or IDH-mutant and 1p19q co-deleted oligodendroglioma, according to WHO CNS 2021 criteria
  • IDH1 mutation (e.g., R132H/C/G/S/L) based on immunohistochemistry (IHC) (R132H only), PCR, or next generation sequencing (NGS).
  • Have had at least 1 prior surgery for glioma (biopsy, sub-total resection, or gross total resection).
  • Measurable disease per modified RANO 2.0 confirmed by BICR during Screening.
  • Previously treated with vorasidenib and experienced radiographic disease progression during treatment and are not in need of immediate chemotherapy or radiotherapy in the opinion of the Investigator. Disease progression must be confirmed by BICR using modified RANO 2.0.
  • Adequate hematologic and organ function
  • Expected survival of ≥12 months

Key Exclusion Criteria:

  • Any prior anticancer therapy other than surgery (biopsy, sub-total, or gross total resection) and vorasidenib for treatment of glioma.
  • Discontinued vorasidenib for toxicity or any reason other than radiographic disease progression
  • Prior treatment with anti-angiogenic agents such as Avastin (bevacizumab) or investigational agents for glioma.
  • Brainstem or spinal cord involvement either as primary location, site of multifocal involvement, or by significant tumor extension.
  • Significant functional or neurocognitive deficits, including uncontrolled seizures
  • Evidence of leptomeningeal disease.
  • Use of therapeutic doses of steroids for signs/symptoms of glioma. Participants taking physiologic doses (defined as equivalent of <1.5 mg of dexamethasone equivalent) for medical conditions not related to glioma will be permitted.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Safusidenib
Safusidenib 250 mg BID
Drug: Safusidenib
Safusidenib administered twice daily as a single agent orally on Days 1 to 28 of a 28-day cycle. Participants may continue treatment until disease progression or another reason for discontinuation occurs.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Objective Response Rate (ORR) per modified Response Assessment in Neuro-Oncology (RANO) 2.0 assessed by Blinded Independent Central Review (BICR)
Time Frame: From the date of first dose of study drug until the date of first documented disease progression, approximately 18 months
ORR defined as the proportion of participants with the confirmed best overall response of Complete Response (CR), Partial Response (PR) or Minor Response (MR) per modified RANO 2.0, assessed by BICR
From the date of first dose of study drug until the date of first documented disease progression, approximately 18 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
ORR per modified RANO 2.0 assessed by Investigator
Time Frame: From the date of first dose of study drug until the date of first documented disease progression, approximately 18 months
ORR defined as the proportion of participants with the confirmed best overall response of CR, PR or MR per modified RANO 2.0, assessed by the Investigator
From the date of first dose of study drug until the date of first documented disease progression, approximately 18 months
Volumetric Tumor Growth Rate (TGR) by BICR
Time Frame: From historical scans through the final scan in the study, approximately 18 months
TGR defined as the percentage change in tumor volume by unit of time, assessed by BICR
From historical scans through the final scan in the study, approximately 18 months
Duration of Response (DOR) per modified RANO 2.0 assessed by BICR and by Investigator
Time Frame: From the date of first dose of study drug until the date of first documented disease progression, approximately 18 months
DOR, time from the first documentation of objective response (CR, PR, or MR) to the date of the first occurrence of radiographic disease progression per modified RANO 2.0 assessed by BICR and by the Investigator or death from any cause, whichever occurs earlier.
From the date of first dose of study drug until the date of first documented disease progression, approximately 18 months
Time to Next Intervention (TTNI)
Time Frame: From the date of first dose of study drug until the date of the start of another anticancer treatment or date of death, approximately 18 months
TTNI, defined as the time from the first dose of study drug to the initiation of first subsequent anticancer therapy or death from any cause, whichever occurs earlier
From the date of first dose of study drug until the date of the start of another anticancer treatment or date of death, approximately 18 months
Progression Free Survival (PFS) per modified RANO 2.0 assessed by BICR and by Investigator
Time Frame: From the date of first dose of study drug until the date of first documented disease progression, approximately 18 months
PFS, defined as the time from the first dose of study drug to the date of the first occurrence of radiographic disease progression per modified RANO 2.0 assessed by BICR and by the Investigator or death from any cause, whichever occurs earlier.
From the date of first dose of study drug until the date of first documented disease progression, approximately 18 months
Time to Response (TTR) per modified RANO 2.0 assessed by BICR and by Investigator
Time Frame: From the date of first dose of study drug to the first documentation of objective response (CR, PR, or MR), approximately 18 months
TTR, defined as the time from the first dose of study drug to the first documentation of objective response (CR, PR, or MR) per modified RANO 2.0, assessed by BICR and by the Investigator
From the date of first dose of study drug to the first documentation of objective response (CR, PR, or MR), approximately 18 months
Overall Survival (OS)
Time Frame: From the date of first dose of study drug until the date of death, approximately 18 months
OS, defined as the time from the first dose of study drug to death from any cause.
From the date of first dose of study drug until the date of death, approximately 18 months
Safety and tolerability
Time Frame: From the date of first dose of study drug until 30 days after the date of the last dose of study drug, approximately 18 months
The safety and tolerability of safusidenib evaluated based on AEs graded by NCI-CTCAE version 5.0, laboratory abnormalities as graded by NCI-CTCAE version 5.0, vital signs, physical examinations, and ECGs
From the date of first dose of study drug until 30 days after the date of the last dose of study drug, approximately 18 months
Seizure Activity
Time Frame: From the date of first dose of study drug until the date of first documented disease progression, approximately 18 months
Evaluate seizure frequencies and severity including type of seizure, seizure-related AEs, and changes in anti-epileptic medications in participants receiving safusidenib
From the date of first dose of study drug until the date of first documented disease progression, approximately 18 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Nuvation Bio Inc.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

March 1, 2027

Primary Completion (Estimated)

September 1, 2030

Study Completion (Estimated)

March 1, 2032

Study Registration Dates

First Submitted

July 9, 2026

First Submitted That Met QC Criteria

July 9, 2026

First Posted (Actual)

July 14, 2026

Study Record Updates

Last Update Posted (Actual)

July 14, 2026

Last Update Submitted That Met QC Criteria

July 9, 2026

Last Verified

July 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • NUV-218-G209

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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