Morning stiffness tends to be severe, and heel-striking during running aggravates symptoms significantly
Many drugs look promising in cells, mice, or tissue samples but fail in later stages because: The treatment doesnt work well enough in humans It causes side effects at real doses The effect fades over time The human joint environment is much more complex than the lab So while we are hopeful, there is a long road ahead before this approach could become a real treatment

The trial did not resume enrollment Preclinical cardiac evidence: Animal models of myocardial infarction demonstrated RGN-352 reduced scar volume, improved cardiac function, and increased survival, forming the basis for the clinical program (PMID: 25015963) RGN-259 (Thymosin Beta-4 Ophthalmic Solution for Dry Eye): ARISE-1 and ARISE-2 Phase 3 trials: Evaluated Thymosin Beta-4 eye drops for dry eye disease with mixed results some endpoints showed improvement in signs of dry eye, but the pre-specified co-primary endpoints were not met, though some secondary endpoints showed statistically significant improvements in certain signs of dry eye (PMID: 23050815) These ophthalmic trials represent the most advanced clinical testing of any Thymosin Beta-4 formulation Independent Pilot Study (China, 2016): A small pilot study randomized 10 STEMI (heart attack) patients into two groups: 5 receiving Thymosin Beta-4-pretreated endothelial progenitor cells (EPCs) and 5 receiving untreated EPCs After 6 months, the Thymosin Beta-4-pretreated group showed trends toward improved cardiac function markers including ejection fraction and exercise capacity, though the very small sample size (n=5 per group) means these results should be considered hypothesis-generating only, not evidence of efficacy (PMID: 27288307) No severe complications were reported in either group during follow-up Important: This study used Thymosin Beta-4 as a cell pretreatment agent ex vivo (EPCs exposed to TB4 before transplantation), not as a directly administered drug

Over the past 20 years, a few dozen preclinical studies (meaning research conducted in animals or cells and not in human trials) have yielded potentially promising data suggesting that the peptide can fight inflammation and promote protein synthesis and angiogenesis (the fancy scientific term for the process by which your body produces new blood vessels)
this prevents loss from the bottom of the nose