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Intensity-Modulated Radiation Therapy in Treating Patients Undergoing Surgery for Stage IB, Stage II, or Stage III Soft Tissue Sarcoma

Phase II Study of Preoperative Intensity-Modulated Radiation Therapy for Soft-Tissue Sarcomas

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00740597
Enrollment
1
Registered
2008-08-25
Start date
2008-07-31
Completion date
2010-04-30
Last updated
2014-07-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sarcoma

Keywords

recurrent adult soft tissue sarcoma, stage I adult soft tissue sarcoma, stage II adult soft tissue sarcoma, stage III adult soft tissue sarcoma, adult alveolar soft-part sarcoma, adult epithelioid sarcoma, adult extraskeletal chondrosarcoma, adult extraskeletal osteosarcoma, adult fibrosarcoma, adult malignant fibrous histiocytoma, adult malignant hemangiopericytoma, adult malignant mesenchymoma, adult neurofibrosarcoma, adult rhabdomyosarcoma, dermatofibrosarcoma protuberans

Brief summary

RATIONALE: Specialized radiation therapy that delivers a high dose of radiation directly to the tumor may kill more tumor cells and cause less damage to normal tissue. Giving radiation therapy before surgery may make the tumor smaller and reduce the amount of normal tissue that needs to be removed. PURPOSE: This phase II trial is studying the side effects of intensity-modulated radiation therapy and to see how well it works in treating patients undergoing surgery for stage IB, stage II, or stage III soft tissue sarcoma.

Detailed description

OBJECTIVES: Primary * Estimate the wound complication rate in patients with stage IB-III soft tissue sarcoma (STS) treated with neoadjuvant intensity-modulated radiotherapy (IMRT). Secondary * Assess local control rate in patients treated with this regimen. * Assess metastatic failure rate in patients treated with this regimen. * Assess disease-free survival of patients treated with this regimen. * Assess overall survival of patients treated with this regimen. * Assess function and general health in these patients using the Musculoskeletal Tumor Society rating scale, Toronto Extremity Salvage Score, and the Short-Form 36. * Determine changes in STS gene expression after IMRT by microarray analyses. * Correlate, preliminarily, changes in STS gene expression with pathological and clinical outcomes. OUTLINE: Patients undergo intensity-modulated radiotherapy (IMRT) once daily 5 days a week for 5 weeks in the absence of disease progression or unacceptable toxicity. Patients then undergo surgery \> 1 month after completion of IMRT. Tumor tissue samples are collected at baseline and at the time of surgery for correlative laboratory studies. Samples are analyzed for gene expression by RNA microarray, real-time polymerase chain reaction, and western blotting. After completion of study treatment, patients are followed periodically for 2 years.

Interventions

GENETICgene expression analysis
GENETICpolymerase chain reaction
GENETICwestern blotting
PROCEDUREneoadjuvant therapy
PROCEDUREtherapeutic conventional surgery
RADIATIONintensity-modulated radiation therapy

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
City of Hope Medical Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

DISEASE CHARACTERISTICS: * Histologically confirmed soft tissue sarcoma (STS) for which neoadjuvant or adjuvant radiotherapy is considered standard care * Stage IB-III disease * Primary or locally recurrent disease * The following chemotherapy-sensitive STS histologies are excluded: * Primitive neuroectodermal tumor * Desmoplastic small round cell tumor * Synovial sarcoma * Myxoid round cell liposarcoma * Angiosarcoma * No sarcomas for which surgical staging and adjuvant radiotherapy are considered standard care (e.g., uterine sarcomas, including leiomyosarcoma, malignant mixed Müllerian tumors, and endometrial stromal sarcoma) * No retroperitoneal STS PATIENT CHARACTERISTICS: * ECOG performance status 0-2 * Able to complete the self-assessment questionnaires (may use translator service) * Willing and able to undergo pre-treatment core needle biopsies * Negative pregnancy test * No known HIV positivity PRIOR CONCURRENT THERAPY: * Prior adjuvant chemotherapy for STS allowed provided patient has locally recurrent disease * At least 1 year since prior adjuvant chemotherapy * No prior radiotherapy to the site of present STS * No other concurrent cytotoxic chemotherapy, targeted therapy, or investigational agents

Design outcomes

Primary

MeasureTime frameDescription
Wound Complication Rate1 yearMajor wound complications up to 4 months post surgery include: Complications requiring a secondary operation under general or regional anesthesia for wound care. Seroma aspiration. Drain placement. Minor wound debridement and wound care. Readmission for wound care such as intravenous antibiotics. Persistent wound deep packing or wound vacuum assisted closure for greater than 120 days.

Countries

United States

Participant flow

Participants by arm

ArmCount
Arm 1
pre-operative radiation + surgery PTV will receive a total dose of 50 Gy in 25 fractions, 2 Gy per fraction, 5 fractions per week, over approximately 5 weeks. Concurrently, the GTV2, if present, will receive 54 Gy in 25 fraction. Dose will be prescribed to the isodose volume that encompasses the PTV. All patients will be treated by 6 MV photon beam.
1
Total1

Withdrawals & dropouts

PeriodReasonFG000
Overall Studyinsurance would not cover treatment1

Baseline characteristics

CharacteristicArm 1
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
1 Participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
1 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
0 / 0
serious
Total, serious adverse events
0 / 0

Outcome results

Primary

Wound Complication Rate

Major wound complications up to 4 months post surgery include: Complications requiring a secondary operation under general or regional anesthesia for wound care. Seroma aspiration. Drain placement. Minor wound debridement and wound care. Readmission for wound care such as intravenous antibiotics. Persistent wound deep packing or wound vacuum assisted closure for greater than 120 days.

Time frame: 1 year

Population: The one patient accrued to the study stopped treatment prior to completing treatment due to insurance denial.

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026