The University of North Carolina at Chapel Hill

Soumya Rahima Benhabbour

Rima Janusziewicz

Sue J Mecham

Panita Maturavongsadit

Geometrically complex intravaginal rings, systems and methods of making the same are provided herein. Disclosed herein are geometrically complex intravaginal rings with tunable and enhanced drug release, which in some embodiments can be fabricated by 3D printing technologies. The disclosed IVRs include a ring structure comprising a plurality of unit cells or macroscopic and/or microscopic architecture, which can be tuned to control the loading capacity of an active compound within the IVR, the diffusion of an active compound from the IVR, the surface area of the IVR, and/or the mechanical properties of the IVR. The disclosed geometrically complex IVRs can provide superior control over drug loading and drug release compared to conventional IVRs fabricated by injection molding or hot-melt extrusion.

Geometrically complex intravaginal rings, systems and methods of making the same

Provided herein are pharmaceutical compositions that include a pharmaceutically active agent, a cellulose nanocrystal or a cellulose nanofiber, a thermogelling biocompatible polymer, and a gelling agent. Such pharmaceutical compositions can be configured as a bioink suitable for 3D printing. Such pharmaceutical compositions are suitable for treating bone disorders, including osteoporosis. Methods of treating Paget's disease, treating or preventing cancer, treating or preventing an infectious disease, and treating or preventing a disorder through regenerative medicine are also provided.

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Chapel Hill, NC, United States of America

Soumya Rahima Benhabbour