Proton-Spatially Fractionated Radiotherapy and Standard Radiation Therapy for the Treatment of Newly Diagnosed Retroperitoneal Soft Tissue Sarcoma
Public ClinicalTrials.gov record NCT06327477. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
First-in-Human Phase I and II Study to Determine Safety and Efficacy of Proton-Spatially Fractionated Radiotherapy (P-SFRT) in Retroperitoneal Soft Tissue Sarcoma
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This phase I/II trial studies the side effects and best dose of proton-spatially fractionated radiotherapy (P-SFRT) and to see how well it works with standard radiation therapy in treating patients with newly diagnosed retroperitoneal soft tissue sarcoma. Radiation therapy uses high energy x-rays, particles, or radioactive seeds to kill cancer cells and shrink tumors. Standard spatially fractionated radiotherapy (SFRT) refers to how the radiation is delivered to the tumor. SFRT means that different parts of the tumor are receiving different doses of radiation (fractionation) through beams that allow areas of higher and lower (peaks and valleys) of doses of the radiation. This spatial fractionation allows an overall high-dose radiation to be given in the peaks and those areas of the tumor may release cells and substances that may help with killing tumor cells, reducing tumor symptoms and shrinking tumors. Proton therapy is a type of radiation therapy that can overcome some of the barriers of standard SFRT. Protons are tiny radioactive particles that can be controlled in a beam to travel up to the tumor and, compared to the particles used in standard radiotherapy, proton therapy can deliver higher doses to the tumor because smaller doses of radiation are delivered to tissues away from the tumor. This allows radiation therapy dose-escalated (continuously increasing the dose of radiation) treatment to tumors even though the tumor is near radiation sensitive organs like the colon. Giving P-SFRT with standard radiation therapy may work better in treating patients with newly diagnosed retroperitoneal soft tissue sarcoma.
Study identification
- NCT ID
- NCT06327477
- Recruitment status
- Recruiting
- Study type
- Interventional
- Phase
- Phase 1, Phase 2
- Enrollment
- 28 participants
Conditions and interventions
Conditions
Interventions
- Biopsy Procedure
- Biospecimen Collection Procedure
- Computed Tomography Procedure
- Intensity-Modulated Radiation Therapy Radiation
- Resection Procedure
- Spatially-fractionated Radiation Therapy Radiation
Procedure · Radiation
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Apr 1, 2024
- Primary completion
- Jun 30, 2028
- Completion
- Jun 30, 2029
- Last update posted
- Jul 6, 2026
2024 – 2029
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Northwestern University | Chicago | Illinois | 60611 | Recruiting |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT06327477, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jul 6, 2026 · Synced Sep 6, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT06327477 live on ClinicalTrials.gov.