Bio-Dermal Restoration With Rapidly Polymerizing Collagen: A Multicenter Clinical Study

Facial contouring procedures have evolved with hyaluronic acid becoming a widely used filler material. However, recent advancements have focused primarily on modifying particle size, concentration, and crosslinking rather than introducing new structural approaches. A gap remains in developing biologically compatible materials that mimic natural tissue structure. Prior research has shown that collagen-based materials can support fibroblast activity and tissue regeneration. Yet, no prior work had resolved how a rapidly polymerizing collagen could function as a scaffold for facial restoration. This uncertainty drove the need for a clinical investigation into collagen-based alternatives. The current literature lacks long-term safety data for collagen-based injectables in facial contouring. Additionally, the role of in situ fibrilization in tissue integration remains understudied. This paper introduces a novel approach to facial restoration through bio-dermal scaffolding.

The study aimed to evaluate the safety and performance of a new collagen-based injectable in facial contouring. RPC Pure-Collagen was tested for its ability to provide a scaffold for fibroblast adherence and proliferation. The primary objective was to assess safety in a clinical setting. Secondary objectives included measuring aesthetic improvements and injection site reactions. The study focused on nasolabial fold correction as a model for facial contouring. A subset of patients was followed for extended periods to assess long-term safety. The researchers proposed that the material’s in situ fibrilization could support natural tissue integration. This approach may offer a safer and more natural alternative to existing fillers.

The study was a prospective, multicenter, open-label trial involving 30 patients. Participants received RPC Pure-Collagen injections in the nasolabial fold. The material is a sterile, viscous solution composed of porcine collagen, EDTA, and Mannitol. It was injected through a 30-gauge needle and fibrilized in situ. Assessments were conducted at baseline, 12 weeks, and up to 9 months post-treatment. Safety was evaluated by tracking injection site reactions and adverse events. Aesthetic improvements were measured using the Merz Aesthetic Scale and the Global Aesthetic Improvement Scale. The researchers proposed that the in situ matrix formation could support fibroblast activity.

The study reported no treatment-related adverse events beyond typical injection site reactions. Transient reactions were mild or moderate in severity, with one case of severe bruising. No hypersensitivity reactions were observed, supporting the material’s safety profile. Aesthetic improvements were significant from baseline to 12 weeks post-treatment. The Merz Aesthetic Scale showed marked improvement in facial contouring. The Global Aesthetic Improvement Scale also indicated positive outcomes. Long-term follow-up up to 9 months confirmed the material’s sustained performance. The researchers propose that the in situ fibrilization supports a natural, open 3D collagen matrix.

The findings suggest that RPC Pure-Collagen is a safe option for facial contouring procedures. The material’s ability to fibrilize in situ may support natural tissue integration. No hypersensitivity reactions were observed, indicating no need for prior skin testing. Transient injection site reactions were typical of such procedures. The aesthetic improvements observed support its potential as a facial contouring treatment. The study’s follow-up period suggests long-term safety and effectiveness. The researchers propose that this material could offer a safer and more natural alternative to existing fillers. These results may support further clinical investigations into collagen-based bio-dermal restoration.