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Tests short high-dose radiotherapy before surgery for retroperitoneal sarcoma

Tests short, high-dose radiotherapy before surgery in adults with retroperitoneal sarcoma.

Plain-language title generated from the registry record
Registry title: Preoperative Ultra-hypofractionated Radiotherapy Followed by Surgery for Retroperitoneal Sarcoma (FUSION-01)

Key facts

Where
Beijing, ChinaSee the site

Where in China

  • Radiotherapy Department of Cancer Hospital, Chinese Academy of Medical SciencesBeijing, ChinaTaking people

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Trial details

Who runs it
Cancer Institute and Hospital, Chinese Academy of Medical Sciences
Trial code
NCT05224934
Record updated
11 December 2025
Original description
To investigate the feasibility and peri-operative complications of preoperative hypo-fractionated radiotherapy followed by surgery for retroperitoneal sarcomaRead full original descriptionShow less

Full-target Ultra-hypofractionated Stereotactic Irradiation Orchestrated With Nodule Boost for Retroperitoneal Sarcoma

To investigate the feasibility and peri-operative complications of preoperative hypo-fractionated radiotherapy followed by surgery for retroperitoneal sarcoma

Inclusion: Primary soft tissue sarcoma of retroperitoneal or infra-peritoneal spaces of pelvis; Sarcoma not originated from bone structure, abdominal or gynecological viscera; All disease can be included safely within one radiotherapy field; Absence of extension through the sciatic notch or across the diaphragm; Histologically proven, excluding the following subtypes: Gastro-intestinal stromal tumors (GIST), rhabdomyosarcoma, PNET or other small round blue cells sarcoma, osteosarcoma or chondrosarcoma, aggressive fibromatosis, sarcomatoid or metastatic carcinoma; ECOG performance status 0 to 2; American Society of Anesthesiologist (ASA) score ≤2; Normal renal function: Calculated Creatinine Clearance ≥50ml/min(by Cockcroft-Gault formula)and functional contralateral kidney by differential renal isotope scan; Normal bone marrow and hepatic function; Contraception was needed for female patients of child-bearing age, or male patients whose partner had child-bearing age; expected life expectancy longer than 5 years; Written consent form was given prior to treatment; Can safely be treated by radiotherapy and surgery.

Exclusion: Tumor was previously treated by radiotherapy; metastatic disease; Involvement of liver, pancreatic head or duodenum.

ClinicalTrials.gov NCT05224934