Comparing tumor resection and biopsy for high-grade glioma patients

The RESBIOP-study: Resection Versus Biopsy in High-grade Glioma Patients (ENCRAM 2202)

Observational Erasmus Medical Center · NCT06146725

This study is testing whether removing a brain tumor or just taking a small sample helps older patients with high-grade gliomas live longer and feel better afterward.

Quick facts

Study typeObservational
Enrollment564 (estimated)
Ages18 Years to 90 Years
SexAll
SponsorErasmus Medical Center Academic / other
Drugs / interventionschemotherapy
Locations8 sites (San Francisco, California and 7 other locations)
Trial IDNCT06146725 on ClinicalTrials.gov

What this trial studies

This observational study aims to compare the effects of maximal tumor resection versus tissue biopsy on survival and quality of life outcomes in high-grade glioma patients aged 70 and older or with limited performance status. It is an international, multicenter, prospective study where patients will be treated with either resection or biopsy in a 3:1 ratio. The primary endpoints include overall survival and the proportion of patients receiving adjuvant treatment, while secondary endpoints focus on neurological morbidity and quality of life assessments post-surgery.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 90 years diagnosed with high-grade glioma who can provide informed consent.

Not a fit: Patients with tumors located in the cerebellum, brainstem, or midline, or those with medical conditions preventing MRI, may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could help determine the optimal surgical approach for high-grade glioma patients, potentially improving survival and quality of life.

How similar studies have performed: While there is limited guidance on this specific comparison, similar studies have explored surgical approaches in glioma treatment, indicating a need for further investigation.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age ≥18 years and ≤90 years
2. Tumor diagnosed as HGG (WHO grade III/IV) on MRI as assessed by the neurosurgeon
3. Written informed consent

Exclusion Criteria:

1. Tumors of the cerebellum, brainstem or midline
2. Medical reasons precluding MRI (e.g. pacemaker)
3. Inability to give written informed consent
4. Secondary high-grade glioma due to malignant transformation from low-grade glioma
5. Second primary malignancy within the past 5 years with the exception of adequately treated in situ carcinoma of any organ or basal cell carcinoma of the skin

Where this trial is running

San Francisco, California and 7 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions GlioblastomaGlioblastoma, IDH-wildtypeGlioblastoma MultiformeGlioblastoma Multiforme, AdultGlioblastoma Multiforme of BrainResectionBiopsySurvival
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.