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Combination of Tarlatamab and Temozolomide in Patients With Central Nervous System Tumors

NCT07243470 · Status: RECRUITING · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL · Enrollment: 70

Last updated 2026-04-22

No results posted yet for this study

Summary

This clinical trial is a 2-phase trial designed to evaluate the safety of tarlatamab in combination with a fixed dose of metronomic temozolomide in adolescents and adults with CNS tumors (stratified into two age-based cohorts), and to assess the clinical activity of this therapeutic strategy in three parallel, histology-defined cohorts (IDH-mutant glioma, other gliomas, and other CNS tumors). A pre-screening to detect DLL3 expression by IHC on archival tumor sample must be performed before the therapeutic part. Only patients with DLL3 positive tumor on IHC can be enrolled in the therapeutic part. This pre-screening must be optimally performed during the ongoing treatment line i.e. before documented progression to not delay treatment starts at time of progression. Tumor samples (surgery or biopsy specimen) will be sent to a central lab for IHC testing.

Conditions

  • Glioma
  • CNS Tumor, Adult
  • CNS Tumor, Childhood

Interventions

DRUG

Tarlatamab

At the starting dose (DL1): All patients will receive a step dose (1 mg) on C1D1 administered as a 60-minute intravenous (IV) infusion then 10mg at C1D8 and C1D15 of tarlatamab single agent (no temozolomide administered during cycle 1) then tarlatamab at 10mg every D1 \& D15 of each 4-week cycle thereafter in combination with temozolomide from C2D1. At DL-1: a cycle period will be 6 weeks with tarlatamab administration every 3 weeks after Cycle 1.

DRUG

Temozolomide (TMZ)

At DL1 : Metronomic temozolomide will not be administered during the first cycle. It will be administered from the first day of the second cycle, at a dose of 50 mg/m²/day, continuously. At DL-1 : Metronomic temozolomide will not be administered during the first cycle. It will be administered from the first day of the second cycle, at a dose of 50 mg/m²/day, continuously.

Sponsors & Collaborators

  • Amgen

    collaborator INDUSTRY

  • National Cancer Institute, France

    collaborator OTHER_GOV

  • Centre Leon Berard

    lead OTHER

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
SEQUENTIAL

Eligibility

Min Age
12 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-11-04
Primary Completion
2029-10-31
Completion
2030-10-31

Countries

  • France

Study Locations

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Entities

Diseases
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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07243470 on ClinicalTrials.gov