Stem cell therapy stories

Aug 6, 2026

Medical community scrutinizes stem cell and orthobiologic treatments amid variable outcomes and thin evidence

Healthcare professionals are raising concerns about the rapid growth of stem cell injections and orthobiologic treatments like platelet-rich plasma for conditions such as knee osteoarthritis, citing inconsistent results and insufficient scientific evidence despite increasing patient demand.

Aug 6, 20264 sources

Jul 21, 2026

Japanese Phase 1 Trial Supports Medium-Term Safety of iPSC-Derived Neural Stem/Progenitor Cell Therapy for Spinal Cord Injury

A Phase 1 clinical trial in Japan reported no tumor formation or graft-related adverse events after transplanting iPSC-derived neural stem/progenitor cells into four patients with subacute complete cervical spinal cord injuries during two to four years of follow-up. The small, uncontrolled study was designed primarily to assess safety and was not able to establish treatment efficacy.

Jul 21, 20263 sources

Top claims

▪A study led by Sowmya Viswanathan suggests that lab-based tests on cultured mesenchymal stromal cells, which identified 14 differentially expressed microRNAs, may predict cell potency and treatment response in knee osteoarthritis patients.
▪The AAOS Orthobiologics Registry does not publicly define how the injectate itself is scientifically validated, leaving open what cellular components will be counted, by what method, and to what precision.
▪The American Academy of Orthopaedic Surgeons announced the AAOS Orthobiologics Registry in December 2025 to separate science from hope through a research-focused design, patient consent, and centralized follow-up.

Subtopics

Regenerative medicine2 Drug Approval and Clinical Trials1 Media regulation1

Related timelines