Imaging-Based Evidence for Minimal Manipulation
Under FDA’s framework for Section 361 HCT/Ps, minimal manipulation of structural tissue means processing does not alter the tissue’s original relevant characteristics — the properties that give it mechanical and structural function. This study provides direct, image-based evidence that Regenative Labs’ processing preserves the collagen microarchitecture of umbilical cord tissue (UCT) allografts.
Study Overview
Human UCT allografts were examined using scanning and three-dimensional electron microscopy at multiple magnifications. Collagen fiber networks were evaluated both qualitatively and quantitatively, with analysis focused on fiber diameter, orientation, and ECM organization pre- and post-processing.
What the Imaging Shows
Pre-processing micrographs revealed a dense, multidirectional, cross-linked collagen network consistent with native Wharton’s Jelly. Post-processing images confirmed preservation of this architecture — collagen fiber diameters remained within physiological range, and the ECM scaffold was structurally comparable before and after manufacturing. Minor variation observed was consistent with hydration effects rather than processing-related degradation.
Structural Comparability to Native Load-Bearing Connective Tissue
Cross-referencing with published electron micrographs of cartilage and fascia demonstrates structural similarity between UCT allografts and native load-bearing connective tissues. This supports the product’s classification as a structural allograft intended for the homologous supplementation of damaged or missing connective tissue — consistent with both FDA’s minimal manipulation standard and homologous use criteria.
Relevance for Clinicians and Regulatory Partners
This work establishes an objective, data-driven foundation for the regulatory positioning of Regenative Labs’ UCT allografts as Section 361 HCT/Ps. For clinicians, it confirms that these products function as connective tissue supplements — not cell-based therapies — with a preserved structural matrix that mirrors the tissue in its native state. For regulatory and research partners, it offers quantitative imaging data directly relevant to minimal manipulation and homologous use determinations.
Read the Full Study
Download the complete electron microscopy report to review methodology, imaging panels, and quantitative analyses.