Combined treatment for soft tissue sarcoma using radiation therapy and surgery

Combined Treatment of Patients With Soft Tissue Sarcoma Including Preoperative Stereotactic Radiation Therapy and Postoperative Conformal Radiation Therapy

Not applicable Interventional N.N. Petrov National Medical Research Center of Oncology · NCT04330456

This study is testing a new three-step treatment for people with soft tissue sarcoma that combines radiation therapy before and after surgery to see if it helps improve their outcomes.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment30 (estimated)
Ages18 Years to 75 Years
SexAll
SponsorN.N. Petrov National Medical Research Center of Oncology Academic / other
Drugs / interventionsradiation
Locations1 site (Saint Petersburg)
Trial IDNCT04330456 on ClinicalTrials.gov

What this trial studies

This clinical trial involves a three-step treatment approach for patients with soft tissue sarcoma. Initially, patients receive preoperative stereotactic radiation therapy in a hypofractionation mode, followed by surgery 14-21 days later. After surgery, postoperative conformal radiation therapy is administered according to standard protocols. The radiation therapy plans are meticulously designed using MRI and CT scans to ensure precise targeting of the tumor and surrounding tissues.

Who should consider this trial

Good fit: Ideal candidates for this study are adults with a morphologically verified diagnosis of soft tissue sarcoma who are eligible for radical surgery.

Not a fit: Patients with recurrent tumors, previous radiation treatment, or conditions that may affect treatment outcomes are unlikely to benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could improve surgical outcomes and reduce the risk of tumor recurrence in patients with soft tissue sarcoma.

How similar studies have performed: Other studies have shown promising results with similar combined approaches of radiation therapy and surgery for soft tissue sarcoma, indicating potential for success.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* morphologically verified diagnosis of soft tissue sarcoma
* first diagnosed tumor process
* ability to perform radical surgery
* signed informed consent
* indications for stereotactic and conformal radiation therapy
* no contraindications for radiation and surgical treatment

Exclusion Criteria:

* previous radiation treatment
* acute infection
* pregnancy, lactation
* recurrent tumor
* refuse to sign informed consent
* conditions that can affect the outcome of treatment (immunodeficiency, tuberculosis, etc.)
* tumor topography and volume that don't allow to perform stereotactic and conformal radiation therapy.

Where this trial is running

Saint Petersburg

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Soft Tissue Sarcoma Adult
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.