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OncoMatch/Clinical Trials/NCT06161974

Study of Olutasidenib and Temozolomide in HGG

Is NCT06161974 recruiting? Yes, currently enrolling (May 2026). This Phase 2 trial studies Olutasidenib + TMZ for high grade glioma.

Phase 2RecruitingRigel PharmaceuticalsNCT06161974Data as of May 2026

Treatment: Olutasidenib + TMZThe goal of this study is to determine the efficacy of the study drug olutasidenib to treat newly diagnosed pediatric and young adult patients with a high-grade glioma (HGG) harboring an IDH1 mutation. The main question the study aims to answer is whether the combination of olutasidenib and temozolomide (TMZ) can prolong the life of patients diagnosed with an IDH-mutant HGG.

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Extracted eligibility criteria

Cancer type

Glioblastoma

Diffuse Intrinsic Pontine Glioma

Biomarker criteria

Required: IDH1 R132H

Presence of at Least One Relevant Actionable Somatic Mutation in IDH1 Gene, Detailed Here: R132H, R132C, R132S, R132G or R132L.

Required: IDH1 R132C

Presence of at Least One Relevant Actionable Somatic Mutation in IDH1 Gene, Detailed Here: R132H, R132C, R132S, R132G or R132L.

Required: IDH1 R132S

Presence of at Least One Relevant Actionable Somatic Mutation in IDH1 Gene, Detailed Here: R132H, R132C, R132S, R132G or R132L.

Required: IDH1 R132G

Presence of at Least One Relevant Actionable Somatic Mutation in IDH1 Gene, Detailed Here: R132H, R132C, R132S, R132G or R132L.

Required: IDH1 R132L

Presence of at Least One Relevant Actionable Somatic Mutation in IDH1 Gene, Detailed Here: R132H, R132C, R132S, R132G or R132L.

Excluded: IDH2 mutation

Patients with IDH2 mutations are not eligible.

Disease stage

Required: Stage WHO GRADE 3, WHO GRADE 4 (WHO)

All other HGG must be WHO Grade 3 or 4. Measurable disease is not required. Patients without measurable disease are eligible. Patient must not have metastatic disease.

Prior therapy

Must have received: radiation therapy — definitive

RT, delivered via photon or proton beam, must have been administered at a standard dose including 54 Gy in 30 fractions for DIPG, 59.4 Gy in 33 fractions or 54-60 Gy in 30 fractions for other HGG or 45-50.4 Gy for primary spinal disease. Any variances in the radiotherapy dose within 10% of the standard doses outlined above will be discussed with the Study Chair to confirm eligibility prior to study enrollment.

Cannot have received: anticancer therapy (other than surgery, radiation, dexamethasone, or temozolomide with RT)

Exception: Temozolomide administered concurrently with radiotherapy is permissible.

No other prior anticancer therapy for HGG will be allowed.

Lab requirements

Blood counts

ANC ≥ 1000/mm3; Platelet count ≥ 100,000/mm3 (transfusion independent); Hemoglobin > 8 g/dL (may be transfused)

Kidney function

Creatinine clearance or radioisotope GFR ≥ 70ml/min/1.73 m2 OR maximum serum creatinine based on age/gender

Liver function

Total bilirubin ≤ 1.5 × institutional ULN; AST(SGOT)/ALT(SGPT) < 3 × institutional ULN; Alkaline Phosphatase < 3 × institutional ULN

Adequate Bone Marrow Function... Adequate Renal Function... Adequate Liver Function...

Structured fields extracted by AI. May contain errors — verify against the official protocol.

US trial sites

  • Children's Hospital Colorado · Aurora, Colorado
  • Children's National Medical Center · Washington D.C., District of Columbia
  • Ann & Robert H. Lurie Children's Hospital of Chicago · Chicago, Illinois
  • Susan Chi · Boston, Massachusetts
  • Duke University Health System · Durham, North Carolina

Showing up to 5 US sites. See all sites on ClinicalTrials.gov →

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