Status:

NOT_YET_RECRUITING

Hypofractionated, 3-week, Preoperative Proton or X-ray Radiotherapy for Patients With Localized Soft Tissue Sarcoma

Lead Sponsor:

Oslo University Hospital

Collaborating Sponsors:

Haukeland University Hospital

University Hospital of Northern Norway, Tromsø, Norway

Conditions:

Soft Tissue Sarcoma (Excluding GIST)

Soft Tissue Sarcoma Adult

Eligibility:

All Genders

18+ years

Phase:

PHASE2

Brief Summary

The purpose of the study is to investigate whether a personalized selection of patients with localized soft tissue sarcoma for preoperative proton radiation therapy can reduce long-term radiation side...

Detailed Description

The objective of the PROSARC-1 trial is to investigate whether a national personalized approach with proton beam therapy (PBT) to selected soft tissue sarcoma (STS) patients can reduce long-term toxic...

Eligibility Criteria

Inclusion

  • ≥ 18 years of age at the time of informed consent.
  • Histological diagnosis of STS, except rhabdomyosarcoma and Ewing sarcoma. Pleomorphic rhabdomyosarcomas are eligible.
  • Primary tumor localized in head, neck, extremity, girdle and/or trunk wall.
  • Measurable disease according to RECIST v1.1.
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1 or 2.
  • Before patient registration, written informed consent must be given according to national and local regulations.
  • Ability to fill in patient questionnaires and comply with study procedures, including travelling to Bergen or Oslo for PBT.

Exclusion

  • Locoregional or distant metastasis as assessed by CT and/or MRI at time of diagnosis. Patients with lung nodules \<10 mm of uncertain etiology may be included.
  • Prior or concurrent malignant disease whose natural history or treatment have the potential to interfere with the safety or efficacy assessment of this clinical trial are not eligible. Patients with a history of breast cancer, requiring continued hormonal treatment (e.g. anti-estrogen or an aromatase inhibitor) may be included. Patients with a history of prostate cancer, requiring continued support with luteinizing hormone releasing hormone (LHRH) agonists, with or without androgens, may be included.
  • Previous radiotherapy to the primary tumor region.
  • Patients with pacemakers and/or implanted defibrillators.
  • Administration of systemic cancer therapy (i.e. chemotherapy, targeted therapy or immune therapy) within 14 days prior to the first fraction of radiotherapy.
  • Patients not able to give an informed consent or comply with study regulations as deemed by study investigator.

Key Trial Info

Start Date :

November 1 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

November 1 2035

Estimated Enrollment :

110 Patients enrolled

Trial Details

Trial ID

NCT07169344

Start Date

November 1 2025

End Date

November 1 2035

Last Update

September 11 2025

Active Locations (4)

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Page 1 of 1 (4 locations)

1

Haukeland University Hospital

Bergen, Norway

2

Oslo University Hospital

Oslo, Norway

3

University Hospital of North Norway

Tromsø, Norway

4

St. Olavs University Hospital

Trondheim, Norway