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OncoMatch/Clinical Trials/NCT06630260

5G-RUBY: Avutometinib and Defactinib in Malignant Brain Tumours

Is NCT06630260 recruiting? Yes, currently enrolling (Jun 2026). This Phase 1/2 trial studies multiple treatments including Avutometinib and Defactinib for glioblastoma multiforme (gbm).

Phase 1/2RecruitingInstitute of Cancer Research, United KingdomNCT06630260Data as of Jun 2026Location: United Kingdom

Treatment: Avutometinib · Defactinib · TemozolomideThe purpose of this clinical trial is to evaluate the safety and tolerability of avutometinib and defactinib and to determine the preliminary antitumour activity of avutometinib and defactinib administered at the recommended Phase 2 dose (RP2D). In the Phase 1b of this study parallel biomarker defined arms will be opened, initially in the relapsed GMB setting, enrolling 12 patients onto each arm. These patients will be treated with avutometinib and defactinib double therapy. Avutometinib will be administered orally at 3.2mg twice a week (e.g., on Monday / Thursday or Tuesday / Friday) with or without a meal. The total weekly dose of avutometinib is 6.4mg. Defactinib will be administered orally, at 200mg, twice a day within 30 min after a meal. The total daily dose of defactinib is 400mg. Once a treatment in any biomarker arm has met the "GO" decision (≥3 successes/12 patients) for relapsed GBM in Phase 1b, that arm can progress to Phase 2. The primary objective of Phase 2 is to determine the antitumour activity of investigational agents administered at the RP2D in patients with molecularly defined malignant brain tumours.

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Extracted eligibility criteria

Treatments studied

Targeted therapy

AvutometinibDefactinib

Chemotherapy

Temozolomide

Cancer type

Glioblastoma

Biomarker criteria

Required: IDH1 wild-type

Glioblastoma, IDH-wildtype Grade 4

Required: IDH1 mutation

Astrocytoma, IDH-mutant, Grade 4

Required: H3F3A (H3 K27M) G34 mutation

Diffuse hemispheric glioma, H3 G34 mutant Grade 4

Disease stage

Required: Stage IV

Grade: 4 (who)

Performance status

WHO 0–1

Demographics

Ages ≥ 16

Prior therapy

Must have received: surgery — frontline

completion of optimal surgery

Must have received: Stupp based adjuvant chemoradiotherapy — frontline

Stupp based adjuvant chemo-radiotherapy (or equivalent)

Cannot have received: cytotoxic chemotherapy

Exception: allowed if >2 weeks since last dose (6 weeks for nitrosoureas)

Cytotoxic chemotherapy during the prior 2 weeks or 6 weeks for nitrosoureas

Cannot have received: bevacizumab (bevacizumab)

Exception: allowed if >6 weeks since last dose

Bevacizumab during the prior 6 weeks

Cannot have received: immune checkpoint inhibitor

Prior immune checkpoint inhibitor therapy or vaccine therapy is not permitted

Cannot have received: vaccine therapy

Prior immune checkpoint inhibitor therapy or vaccine therapy is not permitted

Cannot have received: BRAF inhibitor

Prior use of BRAF or MEK inhibitors is not permitted

Cannot have received: MEK inhibitor

Prior use of BRAF or MEK inhibitors is not permitted

Lab requirements

Blood counts

Haemoglobin (Hb): ≥ 9.0 g/dL; Absolute neutrophil count: ≥1.5 x 10^9/L; Platelet count: ≥100 x 10^9/L; Coagulation: INR <1.5 and APTT <1.5x if not anticoagulated, INR stable > 7 days within intended therapeutic range if anticoagulated

Kidney function

Creatinine: <1.5 x ULN; Sodium: ≥130 mmol/L; Potassium, Calcium, Magnesium, phosphate: Within institution normal ranges (replacement is permitted); Urinary protein: < 1+ on dipstick

Liver function

Bilirubin: Within institution normal ranges; ALT and AST: <3 x ULN; Albumin: ≥ 28 g/dL

Haematological and biochemical indices within the ranges shown below. These measurements must be performed within one week prior to the first dose of either IMP

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

Frequently asked questions

Is NCT06630260 currently recruiting?

Yes, this trial is currently recruiting patients.

Are there prior therapy exclusions?

Yes. Prior cytotoxic chemotherapy, bevacizumab, immune checkpoint inhibitor disqualifies patients from enrollment.

Does this trial require IDH1?

Yes, IDH1 wild-type is a required biomarker for enrollment.

Does this trial require IDH1?

Yes, IDH1 mutation is a required biomarker for enrollment.

Does this trial require H3F3A?

Yes, H3F3A G34 mutation is a required biomarker for enrollment.

What disease stage is eligible?

Stage IV is required.

Could you qualify for this trial?

Enter your biomarker results to see how this trial's eligibility criteria match your specific cancer profile.

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