What research stage is stem-cell therapy for Hip Osteoarthritis at?
Of 12 registrations, 0 reached a confirmatory phase label; everything else is earlier-stage or unlabelled (2026-08-29).
Phase distribution
| Phase label | Records | Share |
|---|---|---|
| Phase 2 | 5 | 36% |
| Phase 1 | 5 | 36% |
| Not applicable | 4 | 29% |
What the phase mix means for Hip Osteoarthritis
Hip-specific registrations remain early-phase. Where later-phase orthopaedic cell work exists, it is usually knee-based, and transferring those conclusions across joints is not supported by the anatomy or the loading.
The later-phase studies themselves
No registered study for this condition carries a Phase 3 or Phase 4 label in this snapshot. That is the single most useful fact on this page: the confirmatory stage has not been reached.
How to read phase labels
Phase labels describe what a study was designed to answer. A Phase 1 result showing improvement answers a question nobody asked of it, because the design has no control arm and too few participants to distinguish an effect from noise.
Median planned enrolment across sampled studies here is 62 participants. Small single-arm studies can flag safety problems; they cannot separate a treatment effect from natural fluctuation, placebo response or regression to the mean.
The largest studies by planned enrolment
Size is a crude proxy for what a study can detect, but it separates a serious attempt from a case series presented as evidence.
| Study | Phase | Status | Planned n | Lead sponsor | Start |
|---|---|---|---|---|---|
| NCT02844764 — Safety & Effectiveness of Autologous Regenerative Cell Therapy on Pain & Inflammation of Osteoarthritis of the Hip | Phase 2 | Recruiting | 4,000 | VivaTech International, Inc. | 2015-07 |
| NCT05507099 — Stem Cell Study in Osteoarthritis of the Knee and Hip Joints | Phase 2 | Recruiting | 400 | Grigory Karmy | 2022-08-23 |
| NCT04448106 — Autologous Adipose Tissue-Derived Mesenchymal Stem Cells (AdMSCs) for Osteoarthritis | Phase 2 | Unknown | 300 | Celltex Therapeutics Corporation | 2023-09-25 |
| NCT03869229 — Adipose-derived Mesenchymal Stem Cells in Osteoarthritis | Phase 1, Phase 2 | Unknown | 100 | Medical University of Warsaw | 2019-04-05 |
| NCT03067870 — Transplantation of Autologous Bone Marrow Derived Stem Cells in Patients With Rheumatoid Arthritis | Phase 1 | Unknown | 100 | Stem Cells Arabia | 2016-11 |
Frequently asked
What research stage is stem-cell therapy for Hip Osteoarthritis at?
0 of 12 records are labelled Phase 3 or 4 (2026-08-29).
Is a Phase 3 trial proof that it works?
No — it is a design capable of testing that question. Proof depends on the reported result, replication, and whether the outcome measured matters to patients.
Why do so many records have no phase?
Observational studies and some cell-therapy protocols are registered without a phase label. It is a registry field, not a quality rating.
Registry and literature counts retrieved 2026-08-29 (ClinicalTrials.gov API v2; PubMed E-utilities). Registration or publication volume measures research activity, not effectiveness or approval. Educational information — not medical advice; verify product, indication, legal pathway and evidence with an independent qualified physician. Page generated 2026-08-29. See our editorial standards.