Purpose

To determine the safety of moderately hypofractionated radiation in the treatment of primary and locally recurrent RPS, based on the evaluation of acute radiation-related toxicity profile of each participant (30-day radiation toxicity)

Condition

Eligibility

Eligible Ages
Over 18 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Participants must have a histologically confirmed STS of the retroperitoneal space or infra-peritoneal spaces of pelvis - Participant must have radiologically measurable disease (RECIST 1.1), as confirmed by abdomino-pelvic CT or MRI - Participant must have primary, locally recurrent, or metastatic disease requiring treatment of the retroperitoneal mass - Tumor must be suitable for radiotherapy and surgery based on pre-treatment CT scan/MRI in multidisciplinary discussion with surgeon and radiation oncologist (anticipated macroscopically complete resection, R0/R1 resection) - Age: 18 years or older - ECOG performance status ≤2 - Absence of history of bowel obstruction, mesenteric ischemia, or severe chronic inflammatory bowel disease. - Normal renal function (calculated creatinine clearance ≥50 mL/min) - Normal bone marrow and hepatic function (white blood cell count ≥2·5 × 10⁹ cells per L, platelet count ≥80 × 10⁹ cells per L, and total bilirubin <2 times upper limit of normal) - Women of child-bearing potential must have a negative pregnancy test within 3 weeks prior to the first day of study treatment - Patients capable of childbearing/reproductive potential should use adequate contraception - Ability to understand and the willingness to sign a written informed consent document

Exclusion Criteria

  • Sarcoma originating from bone structure, abdominal or gynecological viscera - Any of the following histological subtypes: gastrointestinal stromal tumor, rhabdomyosarcoma, primitive neuroectodermal tumor or other small round blue cell sarcoma, osteosarcoma, chondrosarcoma, aggressive fibromatosis, or sarcomatoid or metastatic carcinoma - Prior RT to the RPS - Prior abdominal or pelvic irradiation for other prior malignancy or other disease - Prior different invasive malignancy may be eligible per the discretion of the treating investigator and review by the Principal Investigator (PI) - Prior chemotherapy or immunotherapy within 6 weeks of start of RT - Pregnant women are excluded from this study because RT has the potential for teratogenic or abortifacient effects. - HIV-positive individuals on combination antiretroviral therapy are ineligible because of the potential for increased sensitivity to RT

Study Design

Phase
Phase 1
Study Type
Interventional
Allocation
N/A
Intervention Model
Single Group Assignment
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Hypofractionated Radiation Therapy
This group is receiving hypofractionated radiation therapy (shorter course of radiation therapy)
  • Radiation: Radiation Therapy
    In this study, patients will receive a hypofractionated course of radiation therapy of 2.85 Gy x 15 fractions (42.75 Gy). If there are 2 or more patients with dose-limiting toxicities, the radiation course will be de-escalated to 2.7 Gy x 15 fractions (40.5 Gy).
  • Radiation: Hypofractionationed Radiation Therapy
    This group is receiving hypofractionated radiation therapy (shorter course of RT)

Recruiting Locations

Brigham and Women's Hospital / Dana Farber Cancer Institute
Boston, Massachusetts 02446
Contact:
Miranda Lam
617-732-7948
miranda_lam@dfci.harvard.edu

More Details

Status
Recruiting
Sponsor
Brigham and Women's Hospital

Study Contact

Miranda Lam
617-732-7948
miranda_lam@dfci.harvard.edu

Detailed Description

To determine the safety of moderately hypofractionated radiation in the treatment of primary and locally recurrent RPS, based on the evaluation of acute radiation-related toxicity profile of each participant (30-day radiation toxicity)

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.