Neoadjuvant ADI-PEG 20 + Ifosfamide + Radiotherapy in Soft Tissue Sarcoma

NCT05813327 · Status: ACTIVE_NOT_RECRUITING · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 6

Last updated 2026-04-20

No results posted yet for this study

Summary

In this study, patients with soft tissue sarcoma (STS) will receive ADI-PEG 20 and ifosfamide in combination with radiation as neoadjuvant therapy. In phase I of the study, up to 5 dose levels will be tested to find the recommended phase II dose (RP2D), after which patients enrolling to phase II will be treated at that dose level to assess efficacy.

Conditions

  • Soft Tissue Sarcoma
  • Sts
  • Sarcoma,Soft Tissue

Interventions

DRUG

Mesna

Mesna will be administered for supportive care either intravenously or by mouth per package insert and institutional practice on Days 1 through 5 of all 3 cycles.

DRUG

ADI PEG20

ADI-PEG 20 will be given on an outpatient basis at a dose of 36 mg/m\^2 via intramuscular injection into either the deltoid or gluteal muscle.

DRUG

Ifosfamide

Ifosfamide will be administered intravenously per package insert and institutional practice on Days 1 through 5 of all 3 cycles.

RADIATION

Radiotherapy

Radiotherapy will begin on C2D1 and will continue as per institutional practice.

Sponsors & Collaborators

  • Polaris Group

    collaborator INDUSTRY
  • Washington University School of Medicine

    lead OTHER

Principal Investigators

  • Mia Weiss, M.D. · Washington University School of Medicine

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
SEQUENTIAL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-03-14
Primary Completion
2026-04-10
Completion
2026-07-22
FDA Drug
Yes

Countries

  • United States

Study Locations

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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 NCT05813327 on ClinicalTrials.gov