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Resectable Soft Tissue SarcomaPhase 2NCT04562480

Radiation Therapy Before Surgery for Localized, Resectable Soft Tissue Sarcoma of the Extremity and Superficial Trunk

A Phase 2 study testing Hypofractionated Radiation Therapy, Quality-of-Life Assessment and Questionnaire Administration in people with Resectable Soft Tissue Sarcoma and Stage I Soft Tissue Sarcoma of the Trunk and Extremities AJCC v8, run by Mayo Clinic at 3 sites in United States.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

This phase II trial investigates the effects of hypofractionated radiation therapy before surgery on wound complications associated with surgery in treating patients with soft tissue sarcoma of the extremity (arms, hands, legs or feet) and superficial trunk that has not spread to other parts of the body (localized)… Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Hypofractionated Radiation Therapy, Quality-of-Life Assessment and Questionnaire Administration
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
120 participants
Where
3 sitesUnited States
Study dates
30 Nov 2020to 31 Oct 2029
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Newly diagnosed, histological confirmation of soft tissue sarcoma of the extremities (including limb girdle) or superficial trunk that present as either -
  • Deemed a candidate for complete macroscopic resection of the primary sarcoma OR
  • Having had non-oncologic excisional procedure with positive or uncertain resection margins and still be eligible if the evaluating sarcoma surgeon recommends oncologic re-resection of the surgical bed to obtain negative margins after a course of preoperative radiation therapy
  • No evidence of nodal or distant metastases as determined by clinical examination on any form of imaging
  • Eastern Cooperative Oncology Group (ECOG) performance status (PS) =< 3
  • Life expectancy greater than 6 months
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  • Patients capable of childbearing must use adequate contraception
  • Ability to complete questionnaire(s) by themselves or with assistance
  • Ability to provide written informed consent
  • Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study)

Who cannot join

  • Previous radiation therapy to the site of the sarcoma or area surrounding it such that it would be encompassed by the radiation field needed to treat the current sarcoma. In other words, treatment on this trial would require re-irradiation of tissues
  • Patients with nodal or distant metastases
  • Rhabdomyosarcoma, soft tissue osteosarcoma, soft tissue Ewing sarcoma, and benign histologies
  • Any of the following:
  • Pregnant women
  • Nursing women
  • Men or women of childbearing potential who are unwilling to employ adequate contraception

Trial locations and contacts

3 sites in 1 country.

United States3 sites

  • Mayo Clinic in Florida

    Jacksonville, Florida, 32224

  • Mayo Clinic in Rochester

    Rochester, Minnesota, 55905

  • Mayo Clinic in Arizona

    Scottsdale, Arizona, 85259

Other trials in United States

About this study

Official title: A Phase II Study of Hypofractionated Pre-Operative Radiation Therapy for Localized, Resectable Soft Tissue Sarcoma of the Extremity and Superficial Trunk

This phase II trial investigates the effects of hypofractionated radiation therapy before surgery on wound complications associated with surgery in treating patients with soft tissue sarcoma of the extremity (arms, hands, legs or feet) and superficial trunk that has not spread to other parts of the body (localized) and can be removed by surgery (resectable). Hypofractionated is a shorter radiation therapy treatment length (fewer radiation treatment days) and administers the total radiation dose as larger daily doses, compared to conventionally fractionated therapy.

Read the detailed description

PRIMARY OBJECTIVE:

  1. To report the major acute wound complication rate associated with hypofractionated preoperative radiation therapy, 42.75 Gy in 15 fractions.

SECONDARY OBJECTIVES:

  1. To report the 5-year local failure rate associated with hypofractionated preoperative radiation therapy, 42.75 Gy in 15 fractions.

II. To report the 5-year disease-free survival rate associated with hypofractionated preoperative radiation therapy, 42.75 Gy in 15 fractions.

III. To report the 5-year overall survival rate associated with hypofractionated preoperative radiation therapy, 42.75 Gy in 15 fractions.

IV. To report long-term toxicity rates associated with hypofractionated preoperative radiation therapy, 42.75 Gy in 15 fractions.

  1. To describe patterns of relapse associated with hypofractionated preoperative radiation therapy, 42.75 Gy in 15 fractions.

VI. To describe patient reported outcomes/quality-of-life outcomes with hypofractionated preoperative radiation therapy, 42.75 Gy in 15 fractions.

OUTLINE:

Patients undergo hypofractionated radiation therapy once daily (QD) (except weekends and holidays) over 3 weeks for a total of 15 fractions. Within 3-6 weeks after completion of radiation therapy, patients undergo surgical resection.

After completion of study treatment, patients are followed up at 4-8 weeks, every 3-4 months for years 1-2, and every 6 months for years 3-5.

Being tested
Hypofractionated Radiation Therapy, Quality-of-Life Assessment, Questionnaire Administration, Resection

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Hypofractionated Radiation TherapyRadiation

    Also called Hypofractionated, Hypofractionated Radiotherapy, hypofractionation, Radiation, Hypofractionated

    Undergo hypofractionated radiation therapy

  • Quality-of-Life AssessmentOther

    Also called Quality of Life Assessment

    Ancillary studies

  • Questionnaire AdministrationOther

    Ancillary studies

  • ResectionProcedure or surgery

    Also called Surgical Resection

    Undergo surgical resection

Study groups in NCT04562480
Study groupRoleWhat they receive
Treatment (hypofractionated radiation therapy, resection)ExperimentalPatients undergo hypofractionated radiation therapy QD (except weekends and holidays) over 3 weeks for a total of 15 fractions. Within 3-6 weeks after completion of radiation therapy, patients undergo surgical resection.
Receives: Radiation: Hypofractionated Radiation Therapy; Other: Quality-of-Life Assessment; Other: Questionnaire Administration; Procedure: Resection

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Major Wound Complications

    Will be assessed by the number of patients who experience major wound complications within 120 days following surgery. Major wound complication is defined as secondary unplanned operation under general or regional anesthesia for wound repair (e.g., debridement, operative drainage, or secondary wound closure including rotationplasty, free flaps or skin grafts); or wound management without secondary operation including invasive procedures (e.g., aspiration of seroma or readmission for wound care such as intravenous antibiotics or persistent deep packing for 120 days or longer).

    Measured: Within 120 days of surgical resection of soft tissue sarcoma following preoperative radiation therapy

Secondary outcomes (8)

  1. Local Failure Rate

    Defined as any radiographic or pathologic evidence of recurrent disease inside the clinical target volume (CTV) and/ or to within 3 cm from the edge of the CTV. Local failure rate at 5 years (LFR5) will be evaluated by the number of patients free of local failure/recurrence at 5 years.

    Measured: Up to 1 year

  2. Percent Probability of Disease-free Survival at 1 Year

    Defined as the time from registration to the earliest date of documentation of local recurrence, regional recurrence, distant recurrence, or death due to any cause

    Measured: up to 1 year

  3. Percent Probability of Overall Survival at 1 Year

    Defined as the time from registration date to death due to any cause

    Measured: Up to 1 year

  4. Incidence of Late Adverse Events

    The descriptions and grading scales found in the revised National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 5.0 will be utilized for adverse event reporting. The rate of >= grade 2 late adverse events will be estimated by the number of patients with a >= grade 2 late adverse events.

    Measured: Between 3 months and 24 months after completion of hypofractionated preoperative radiation therapy

  5. Pattern of Relapse

    Pattern of relapse will be evaluated by number of patients with patterns of tumor recurrence such as local recurrence, marginal recurrence, regional recurrence, distant metastasis, and second primary tumor.

    Measured: Up to 1 years

  6. Incidence of Adverse Events

    The descriptions and grading scales found in the revised NCI CTCAE version 5.0 will be utilized for adverse event reporting. The maximum grade for each type of adverse event will be recorded for each patient, and frequency tables will be reviewed to determine patterns.

    Measured: Up to 1 year

  7. Change in Quality of Life - PROMIS-10

    Results from the ten-item Patient Reported Outcomes Measurement Information System (PROMIS-10) questionnaire will be used to evaluate physical and mental health separately. The PROMIS-10 consists of ten items that measure physical health, physical functioning, general mental health, emotional distress, satisfaction with social activities and relationships, ability to carry out usual social activities and roles, pain, fatigue and overall quality of life.

    Measured: Baseline up to 24 months post-surgery

  8. Change in Quality of Life - TESS

    Results from the Toronto Extremity Salvage Score (TESS) questionnaire will be used to evaluate functional outcomes. The TESS was designed as a measure of the difficulty patients have performing routine daily activities. It consists of 31 items with responses from 1 (impossible to do) to 5 (not at all difficult).

    Measured: Baseline up to 24 months post-surgery

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Sep 2020
  2. Study start30 Nov 2020
  3. Primary completion31 Oct 2024
  4. Study completion31 Oct 2029 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
120 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04562480
Sponsor's protocol ID
MC1973
Other IDs
NCI-2020-06811, MC1973, 19-011871
Status last verified
Jan 2026
First submitted
18 Sep 2020
Last updated
4 Feb 2026
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes

Publications

  • Ahmed SK, Xu-Welliver M, Dorr M, Steinert KO, Houdek MT, Rose PS, Karim SM, Ashman JB, Goulding KA, Siontis BL, Haddock MG, Petersen IA. Hypofractionated Preoperative Radiation Therapy for Extremity and Superficial Trunk Soft Tissue Sarcomas: Results of a Prospective, Phase 2 Trial. Int J Radiat Oncol Biol Phys. 2025 Nov 15;123(4):980-989. doi: 10.1016/j.ijrobp.2025.05.006. Epub 2025 May 17.

    PubMed 40389098

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Hypofractionated Radiation Therapy, Quality-of-Life Assessment and Questionnaire Administration in people with Resectable Soft Tissue Sarcoma and Stage I Soft Tissue Sarcoma of the Trunk and Extremities AJCC v8, run by Mayo Clinic at 3 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 10 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 4 Feb 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 16 Jan 2026). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Major Wound Complications (time frame: Within 120 days of surgical resection of soft tissue sarcoma following preoperative radiation therapy). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04562480, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Feb 2026; AzTrials last refreshed its copy on 27 Oct 2026.

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