Khalid Garba M, Billa Nashiru
Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK.
FabRx Ltd., Henwood House, Henwood, Asford TN24 8DH, UK.
Materials (Basel). 2023 Nov 20;16(22):7245. doi: 10.3390/ma16227245.
Surgical site infections (SSIs) may result from surgical procedures requiring a secondary administration of drugs at site or systemically in treating the infection. Drug-eluting sutures containing antimicrobial agents symbolise a latent strategy that precludes a secondary drug administration. It also offers the possibility of delivering a myriad of therapeutic agents to a localised wound site to effect analgesia, anti-inflammation, or the deployment of proteins useful for wound healing. Further, the use of biodegradable drug-eluting sutures eliminates the need for implanting foreign material into the wound, which needs to be removed after healing. In this review, we expound on recent trends in the manufacture of drug-eluting sutures with a focus on the hot-melt extrusion (HME) technique. HME provides a solvent-free, continuous one-step manufacturing conduit for drug-eluting sutures, hence, there is no drying step, which can be detrimental to the drug or suture threads and, thus, environmentally friendly. There is the possibility of combining the technology with additive manufacturing platforms to generate personalised drug-loaded implantable devices through prototyping and scalability. The review also highlights key material requirements for fabricating drug-eluting sutures by HME, as well as quality attributes. Finally, a preview of emerging drug-eluting sutures and advocacy for harmonisation of quality assurance by regulatory authorities that permits quality evaluation of novelty sutures is presented.
手术部位感染(SSIs)可能源于手术操作,这类手术在治疗感染时需要在手术部位或全身再次给药。含有抗菌剂的药物洗脱缝线代表了一种可避免再次给药的潜在策略。它还提供了将多种治疗剂输送到局部伤口部位以实现镇痛、抗炎或部署对伤口愈合有用的蛋白质的可能性。此外,使用可生物降解的药物洗脱缝线消除了将异物植入伤口的需要,而异物在伤口愈合后需要取出。在这篇综述中,我们阐述了药物洗脱缝线制造的最新趋势,重点是热熔挤出(HME)技术。HME为药物洗脱缝线提供了一种无溶剂、连续的一步制造途径,因此,不存在干燥步骤,而干燥步骤可能对药物或缝线有害,所以对环境友好。有可能将该技术与增材制造平台相结合,通过原型制作和可扩展性来生产个性化的载药植入装置。该综述还强调了通过HME制造药物洗脱缝线的关键材料要求以及质量属性。最后,介绍了新兴的药物洗脱缝线,并倡导监管机构协调质量保证,以便对新型缝线进行质量评估。
Materials (Basel). 2023-11-20
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