Adding lomustine to standard care for MGMT‑methylated glioblastoma

Phase III Trial of Temozolomide/Lomustine (TMZ/LOM) Combination Therapy vs. Standard TMZ Therapy for Newly Diagnosed MGMT Promoter Methylated Glioblastoma (IDHwt) Patients +/- Tumor Treating Fields (Optune)

Phase 3 Interventional Vastra Gotaland Region · NCT06419946

This trial tests whether giving lomustine together with temozolomide and radiation helps adults with newly diagnosed, MGMT‑methylated, IDH‑wildtype glioblastoma live longer.

Quick facts

PhasePhase 3
Study typeInterventional
Enrollment200 (estimated)
Ages18 Years to 70 Years
SexAll
SponsorVastra Gotaland Region Government
Drugs / interventionschemotherapy, radiation
Locations20 sites (Graz and 19 other locations)
Trial IDNCT06419946 on ClinicalTrials.gov

What this trial studies

This is a randomized Phase 3 trial that compares standard treatment (temozolomide during and after radiation) to the same regimen with lomustine added. Eligible participants are adults 18–70 with newly diagnosed IDH‑wildtype glioblastoma and a methylated MGMT promoter and a WHO performance status of 0–2. Patients are randomly assigned to one of the two treatment arms and followed for survival, safety, and quality‑of‑life outcomes. The trial builds on prior randomized data suggesting potential benefit from combining lomustine with temozolomide in this molecular subgroup.

Who should consider this trial

Good fit: Adults aged 18–70 with newly diagnosed, IDH‑wildtype glioblastoma whose tumor shows MGMT promoter methylation and who have WHO performance status 0–2 without prior head radiotherapy or chemotherapy are ideal candidates.

Not a fit: Patients with unmethylated MGMT, IDH‑mutant tumors, poor performance status, prior relevant treatments, or serious comorbidities are unlikely to benefit from this trial's experimental approach.

Why it matters

Potential benefit: If successful, adding lomustine could extend overall survival for patients with newly diagnosed, MGMT‑methylated, IDH‑wildtype glioblastoma.

How similar studies have performed: Previous randomized data such as the NOA‑09 trial provided preliminary evidence that adding lomustine to temozolomide may improve outcomes in MGMT‑methylated glioblastoma, but results are not yet definitive.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Newly diagnosed glioblastoma/gliosarcoma, IDH wild type
* Methylated MGMT promoter
* World Health Organization performance status 0-2
* Age 18-70

Exclusion Criteria:

* Previous malignancy within 3 y or malignancy treated non-curatively
* Previous chemotherapy or radiotherapy involving the head
* Off-protocol tumor-specific treatment
* Serious comorbidity

Where this trial is running

Graz and 19 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 Glioblastoma, IDH-wildtypeMGMT-Methylated Glioblastomaprecision medicinetemozolomidelomustineCCNUsurvival
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.