Breakthrough Stem Cell Treatment for Parkinson’s Disease, Dementia, ALS, and Long Covid
Mar 31, 2025 06:00AM ● By CHADWICK C. PRODROMOS, M.D.
Neurocognitive disorders such as Parkinson’s, Amyotrophic Lateral Sclerosis (ALS), and dementia are among the most feared of human afflictions. They have resisted conventional treatment, and even standard stem cell infusions have not been helpful. And the Prodromos Stem Cell Institute (PSCI) has turned down such patients for stem cell treatment over the years because they simply did not work. However, PSCI has achieved breakthroughs in treatment for these disorders as described below, which represent the most exciting advance that Dr. Chadwick C. Prodromos, medical director for PSCI, has seen in his 40 years as a practicing physician.
Exosomes
Over the last several years there have been several animal studies showing efficacy using exosomes, which are tiny vesicles that exist within stem cells rather than using the stem cells themselves. Based on these studies PSCI began a clinical trial at their center in Antigua in May 2024 using exosomes for a variety of neurodegenerative disorders. The exosomes come from the stem cells produced at Vitro Biopharma. These cells have been repeatedly approved by the FDA for use in humans and are the finest in the world in Dr. Prodromos’s opinion. The results have been stunning.
Safety
Most importantly, in more than 100 patients treated PSCI had complete safety. There have been no adverse events or side effects of any kind. Recovery is immediate with full function allowed.
General Efficacy
This is described below for each disorder, but quite remarkably, almost unbelievably, significant benefit is usually seen within 24 hours of treatment, usually in fact, on the same day.
Parkinson’s
More than 80% of Parkinson’s patients have shown significant improvement. Improvements are seen in gait, animation, tremor, voice, bradykinesia, and cognition. Several patients who had lost their sense of smell or taste have regained it. Repeat treatment has produced additive benefit. One patient had complete remission of all symptoms.
ALS
It is important to realize that there has never been any treatment by anyone ever that has resulted in improvement in ALS. The best that has occurred is a marginal slowing of disease progression. However, more than 80% of PSCI treated patients have shown actual improvement, and partial disease reversal, for the first time ever anywhere. Better strength and gait, stronger breathing and ability to cough, better swallowing with decreased choking. And repeat treatments have shown even greater improvement after subsequent treatments. This is the first time in the world that such improvement has been seen.
Lewey Body Dementia
PSCI has treated only two patients, one very seriously affected wheelchair-bound and unable to speak, but both have seen significant improvement with each treatment. And again, no other treatment has been able to do this.
Alzheimer’s
While the response rate has been lower than the others, about 50%, for the patients who did respond the results have been quite substantial.
Cognitive Decline
Patients with premature cognitive decline (short-term memory, focus issues, etc.) have responded to treatment in every case with increased clarity of thought and memory.
Vision, Hearing, and Tinnitus
Several patients with central hearing loss as well as retinal disease have responded but in lower percentages. Remarkably one patient with semaglutide-induced NAION eye disease has seen a significant increase in vision. Here too, PSCI is unaware of any prior treatment success for this disorder.
Multiple Sclerosis (MS)
All patients treated with MS have shown significant improvement.
Autism
Combining exosomes with stem cells has produced better results than the already good results PSCI been obtaining with stem cells alone.
If you or someone you know has interest, please call PSCI at 847-699-6810 and visit our website at www.ThePsci.com. While PSCI generally treats in Antigua, some patients are eligible for special FDA permission to be treated in the USA in PSCI offices in Naples, Florida, or Chicago.

Prodromos Stem Cell Institute - 720 Goodlette Road N, Naples, FL
CHADWICK C. PRODROMOS, M.D. STEM CELL THERAPY Medical Director and CEO of The Prodromos Stem Cell Institute Medical Director of the Foundation for Orthopaedics and Regenerative Medicin... Read More »