» Articles » PMID: 37776906

High Dose, Dual-release Polymeric Films for Extended Surgical Bed Paclitaxel Delivery

Abstract

While surgery represents a major therapy for most solid organ cancers, local recurrence is clinically problematic for cancers such as sarcoma for which adjuvant radiotherapy and systemic chemotherapy provide minimal local control or survival benefit and are dose-limited due to off-target side effects. We describe an implantable, biodegradable poly(1,2-glycerol carbonate) and poly(caprolactone) film with entrapped and covalently-bound paclitaxel enabling safe, controlled, and extended local delivery of paclitaxel achieving concentrations 10,000× tissue levels compared to systemic administration. Films containing entrapped and covalently-bound paclitaxel implanted in the tumor bed, immediately after resection of human cell line-derived chondrosarcoma and patient-derived xenograft liposarcoma and leiomyosarcoma in mice, improve median 90- or 200-day recurrence-free and overall survival compared to control mice. Furthermore, mice in the experimental film arm show no film-related morbidity. Continuous, extended, high-dose paclitaxel delivery via this unique polymer platform safely improves outcomes in three different sarcoma models and provides a rationale for future incorporation into human trials.

References
1.
Zhang H, Grinstaff M . Recent advances in glycerol polymers: chemistry and biomedical applications. Macromol Rapid Commun. 2014; 35(22):1906-24. PMC: 4415886. DOI: 10.1002/marc.201400389. View

2.
Al Subeh Z, Chu N, Korunes-Miller J, Tsai L, Graf T, Hung Y . Delivery of eupenifeldin via polymer-coated surgical buttresses prevents local lung cancer recurrence. J Control Release. 2021; 331:260-269. PMC: 7946725. DOI: 10.1016/j.jconrel.2021.01.026. View

3.
Janardhanam L, Bandi S, Venuganti V . Functionalized LbL Film for Localized Delivery of STAT3 siRNA and Oxaliplatin Combination to Treat Colon Cancer. ACS Appl Mater Interfaces. 2022; 14(8):10030-10046. DOI: 10.1021/acsami.1c22166. View

4.
Hsu M, Hsieh C, Huang Y, Chu S, Chen C, Lee W . Enhanced Paclitaxel Efficacy to Suppress Triple-Negative Breast Cancer Progression Using Metronomic Chemotherapy with a Controlled Release System of Electrospun Poly-d-l-Lactide-Co-Glycolide (PLGA) Nanofibers. Cancers (Basel). 2021; 13(13). PMC: 8268060. DOI: 10.3390/cancers13133350. View

5.
Bonvalot S, Rivoire M, Castaing M, Stoeckle E, Cesne A, Blay J . Primary retroperitoneal sarcomas: a multivariate analysis of surgical factors associated with local control. J Clin Oncol. 2008; 27(1):31-7. DOI: 10.1200/JCO.2008.18.0802. View