Preoperative IMRT With Anlotinib and Penpulimab for Localized Sarcoma （SPARE-01）

Shown exactly as written on ClinicalTrials.gov. Your oncologist is the right person to judge whether it fits your situation.

Inclusion Criteria:

* Age older than 18-yo
* Histology proven soft tissue sarcoma of truncal or extremity, deemed appropriate for preoperative radiotherapy and conservative surgery by multidisciplinary discussion.
* ECOG 0-3
* Histology reviewed by reference pathologist
* Lesion can be assessed
* Can tolerate radiotherapy and Anlotinib
* Agree contraception.
* Informed consent: All patients must sign a document of informed consent indicating their understanding of the investigational nature and risks of the study before any protocol related studies are performed

Exclusion Criteria:

* No gross tumor post-resection in other center.
* Contraindications to Anlotinib, including allergic to Anlotinb, active bleeding, ulcer, enteric perforation, enteric obstruction, uncontrolled hypertension, Grade 3 to 4 cardiac insufficiency (per NYHA criteria), and severe hepatic or renal insufficiency (Grade 4), etc.
* Dermatofibrosarcoma protuberans(DFSP), Desmoids, etc.
* Benign histology
* Secondary cancer within 5 years (except cervical carcinoma in situ or early-stage skin basal cell carcinoma)
* STS can be cured by extensive operation alone.
* Previous irradiation to the same area
* Radiological evidence of distant metastases
* Other contraindications, can't tolerate operation or other treatment needed in this study.
* Neoadjuvant chemotherapy given or planned.