Lurbinectedin for FET-Fused Tumors

This study is testing a drug called lurbinectedin to see if it is safe and effective for people with certain types of recurrent (cancer that has come back) or relapsed (cancer that has returned after treatment) solid tumors. This includes Ewing sarcoma, a type of cancer that affects bones and soft tissues. You may be able to join if you are 10 years or older and have a solid tumor that has a specific genetic change called a FET fusion. Researchers will look at side effects (adverse events) and how well the treatment shrinks or gets rid of the tumor (complete or partial response). The study plans to enroll 63 participants, but its current status is unclear.

Study design
This is an interventional study, meaning participants will receive a specific treatment. It aims to enroll 63 participants.
What's involved
Lurbinectedin will be given on Day 1 and Day 4 every 21 days. The exact duration of treatment and number of visits are not specified.
Compensation
Not stated in the trial record.
Follow-up
Researchers will monitor for side effects for 28 days after the last dose. Tumor responses will be measured through the end of treatment, an average of 1 year.

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NCT05918640

Lurbinectedin in FET-Fused Tumors

Recruiting
PHASE1Ages 10+InterventionalTreatment
Children's Hospital of Philadelphia
~63 participants
Updated 2026-03-31 on ClinicalTrials.gov
What's tested:Lurbinectedin

At a glance

Recruiting sites
6 of 6 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Phase 1: Dose Limiting Toxicities (DLTs)
Measured over within 28 days of the first dose
+3 more outcomes measured
Ewing Sarcoma
Desmoplastic Small Round Cell Tumor
Pediatric Cancer
Undifferentiated Sarcoma
6 sites across 6 states
California1
Iowa1
Massachusetts1
Michigan1
New York1
Pennsylvania1
  • Theodore Laetsch, MD · PRINCIPAL_INVESTIGATOR · Children's Hospital of Philadelphia

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  • Phase 1: Dose Limiting Toxicities (DLTs)within 28 days of the first dose

    First cycle (approximately 21 days) Dose Limiting Toxicities (DLTs) will be evaluated.

  • Phase 1: Frequency of adverse events28 days after last dose

    Adverse events to be reported during treatment and for at least 28 days after last dose.

  • Phase 1: Complete Response or Partial Responsethrough the end of treatment, an average of 1 year

    Percentage of participants with complete response or partial response will be assessed approximately every 2 to 4 cycles through the end of treatment and up to at least 28 days after the last dose.

  • Phase 2: Event-Free Survival (EFS)2 years

    Event-free survival (EFS) is based on investigator assessment from baseline until Month 24.