Caffeine-potentiated chemotherapy and conservative surgery for high-grade soft-tissue sarcoma

Area of Science:

• Oncology
• Surgical Oncology
• Pharmacology

Background:

• Soft-tissue sarcomas are a heterogeneous group of malignant tumors requiring multimodal treatment approaches.
• Limb-sparing surgery aims to preserve limb function while achieving oncological control.
• Chemotherapy, particularly when potentiated by agents like caffeine, is explored to enhance treatment efficacy.

Purpose of the Study:

• To evaluate the outcomes of caffeine-potentiated chemotherapy and limb-sparing surgery in patients with soft-tissue sarcomas.
• To assess the efficacy of this combined approach in terms of local recurrence, metastasis, and survival rates.
• To compare treatment results between non-metastatic (Stage II) and metastatic (Stage III) soft-tissue sarcomas.

Main Methods:

• Retrospective analysis of 36 patients with high-grade soft-tissue sarcomas.
• Treatment involved preoperative and/or postoperative caffeine-potentiated chemotherapy (cisplatin, doxorubicin, caffeine) and conservative surgery (limb-sparing or local excision).
• Patients were stratified by stage (IIB non-metastatic vs. III metastatic) and tumor histology.

Main Results:

• An overall objective response rate of 73% was observed following preoperative chemotherapy.
• For Stage IIB patients, the 5-year survival rate was 81%, with a low rate of local recurrence and new lung metastasis.
• Stage III patients had a poor prognosis, with 8 out of 9 dying from metastatic disease within 2.5 years.

Conclusions:

• Caffeine-potentiated chemotherapy and limb-sparing surgery demonstrate favorable outcomes for Stage II non-metastatic soft-tissue sarcomas.
• The treatment strategy for Stage III metastatic soft-tissue sarcomas requires further investigation and improvement.
• This combined approach offers a viable option for limb preservation and oncological control in select sarcoma patients.