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Grindy S, Gil D, Suhardi J, Fan Y, Moore K, Hugard S, Leape C, Randolph M, Asik MD, Muratoglu O, Oral E. Hydrogel device for analgesic drugs with in-situ loading and polymerization. J Control Release 2023; 361:20-28. [PMID: 37451545 DOI: 10.1016/j.jconrel.2023.07.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 07/05/2023] [Accepted: 07/10/2023] [Indexed: 07/18/2023]
Abstract
The high prevalence of opioid addiction and the shortcomings of systemic opioids has increased the pace of the search for alternative methods of pain management. The local delivery of pain medications has started to be used as a tool for pain management and to decrease the use of systemic opioids for these patients. Here, we explored an in-situ polymerizable hydrogel system for the local delivery of analgesics and nonsteroid anti-inflammatory drugs (NSAID) for orthopaedic applications. We synthesized a series of methacrylated oligomeric polyethylene glycol-co-lactic acid polymer using microwave radiation for the delivery of bupivacaine hydrochloride as an analgesic and ketorolac tromethamine as an NSAID. We determined drug elution and gel degradation profiles in vitro. Biocompatibility was assessed against osteoblasts in vitro and by histological analysis after subcutaneous implantation for 4 weeks in vivo. Intra-articular and systemic concentrations and pharmacokinetic parameters were estimated using a two-compartment pharmacodynamic model based on in-vitro elution profiles. This type of in-situ applicable hydrogels is promising for extending the local efficacy of pain medication and further reducing the need for opioids.
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Affiliation(s)
- Scott Grindy
- Harris Orthopaedics Laboratory, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Orthopaedic Surgery, Harvard Medical School, Harvard University, Boston, MA 02115, USA
| | - Dmitry Gil
- Harris Orthopaedics Laboratory, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Orthopaedic Surgery, Harvard Medical School, Harvard University, Boston, MA 02115, USA
| | - Jeremy Suhardi
- Harris Orthopaedics Laboratory, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Orthopaedic Surgery, Harvard Medical School, Harvard University, Boston, MA 02115, USA
| | - Yingfang Fan
- Harris Orthopaedics Laboratory, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Orthopaedic Surgery, Harvard Medical School, Harvard University, Boston, MA 02115, USA
| | - Kyle Moore
- Harris Orthopaedics Laboratory, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Shannon Hugard
- Harris Orthopaedics Laboratory, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Charlotte Leape
- Harris Orthopaedics Laboratory, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Mark Randolph
- Harris Orthopaedics Laboratory, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Orthopaedic Surgery, Harvard Medical School, Harvard University, Boston, MA 02115, USA
| | - Mehmet D Asik
- Harris Orthopaedics Laboratory, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Orthopaedic Surgery, Harvard Medical School, Harvard University, Boston, MA 02115, USA
| | - Orhun Muratoglu
- Harris Orthopaedics Laboratory, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Orthopaedic Surgery, Harvard Medical School, Harvard University, Boston, MA 02115, USA
| | - Ebru Oral
- Harris Orthopaedics Laboratory, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Orthopaedic Surgery, Harvard Medical School, Harvard University, Boston, MA 02115, USA.
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