For Healthcare Professionals

Study of Vorasidenib and Pembrolizumab Combination in Recurrent or Progressive Enhancing IDH-1 Mutant Astrocytomas


About the study

Vorasidenib in combination with pembrolizumab in participants with recurrent or progressive enhancing isocitrate dehydrogenase-1 (IDH-1) mutant astrocytomas.

Who can take part

You may be eligible to participate in the study if you meet the following criteria:


Inclusion Criteria:

  1. Have Karnofsky Performance Status (KPS) of ≥ 70%.
  2. Have expected survival of ≥ 3 months.
  3. Have histologically confirmed Grade 2 or Grade 3 astrocytoma (per the 2016 or 2021 World Health Organization [WHO] Classification of Tumors of the central nervous system)
  4. Have documented IDH1-R132H gene mutation and absence of 1p19q co-deletion (i.e., non-co-deleted, or intact) and/or documented loss of nuclear ATRX expression or ATRX mutation by local testing.
  5. Have measurable, magnetic resonance imaging (MRI)-evaluable, unequivocal contrast enhancing disease as determined by institution radiologist/Investigator at Screening on either 2D T1 post-contrast weighted images or 3D T1 post-contrast weighted images. Per mRANO criteria, measurable lesion is defined as at least 1 enhancing lesion measuring ≥ 1 cm x ≥ 1 cm.
  6. Have recurrent or progressive disease and received prior treatment with chemotherapy, radiation, or both.
  7. Surgical resection is indicated for treatment, but surgery is not urgently indicated (e.g., for whom surgery within the next 6-9 weeks is appropriate). (NOTE: This criterion only applies to participants enrolled in the perioperative phase of the study. Participants in the Safety Lead-In should not require surgery).


Exclusion Criteria:

  1. Have received prior systemic anti-cancer therapy within 1 month of the first dose of IMP, radiation within 12 months of the first dose of IMP, or an investigational agent < 14 days prior to the first dose of IMP. In addition, the first dose of IMP should not occur before a period of ≥ 5 half-lives of the investigational agent has elapsed.
  2. Have received 2 or more courses of radiation.
  3. Have received any prior treatment with an isocitrate dehydrogenase (IDH) inhibitor; anti-programmed cell death 1 (PD1), anti-programmed cell death ligand 1 (PD-L1), or anti-PD-ligand 2 (L2) agent, or with an agent directed to another stimulatory or co-inhibitory T-cell receptor (e.g., CTLA-4, OX 40, CD137); any other checkpoint inhibitor; bevacizumab; or any prior vaccine therapy.

Note: Other inclusion and exclusion criteria may apply.

pin location

Study Locations

Enter your ZIP code/Postal code/PIN code to locate study sites near you:

How to Apply

Contact the study center to learn if this study is a good match for you.

Study’s details



Age (in years)



Phase 1

Participants needed


Est. Completion Date

Aug 30, 2027

Treatment type



Servier identifier


Study number


Understanding Clinical Trials

Get answers to your questions about clinical trials.What is a clinical research?What does taking part in clinical trials involve?What should I ask the trial doctor?


Sign up to save your favorites, 
receive newsletters, resources, and alerts 
about clinical trials related to your conditions of interest.