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Table 1 Current clinical trials using stem cell-based therapies for Alzheimer’s disease (AD) and Parkinson’s disease (PD)

From: Controversies and insights into PTBP1-related astrocyte-neuron transdifferentiation: neuronal regeneration strategies for Parkinson’s and Alzheimer’s disease

NCT Number

Study design

Stem cell type

Status

Estimated completion date

Disease

NCT05667649

Phase I

Autologous adipose derived MSC

Recruiting

March, 2025

AD

NCT04684602

Phase I/II

Allogenic amniotic and umbilical cord tissue-derived MSC

Recruiting

December 09, 2030

AD

NCT04482413

Phase IIb

Autologous adipose tissue-derived MSC

Not yet recruiting

December 20, 2024

AD

NCT03899298

Phase I

Allogenic amniotic and umbilical cord tissue-derived MSC

Not yet recruiting

March 20, 2029

AD

NCT03724136

N/A

Autologous BMSC

Enrolling by invitation

October, 2025

AD

NCT02899091

Phase I/IIa

Allogenic placenta-derived MSC

Active, not recruiting

December, 2024

AD

NCT02833792

Phase IIa

Allogenic human MSC

Recruiting

December 31, 2024

AD

NCT02795052

N/A

Autologous BMSC

Recruiting

July 31, 2026

AD

NCT06482268

Phase I/II

Allogenic iPSC-derived dopaminergic progenitor cells

Recruiting

May, 2028

PD

NCT06344026

Phase I/IIa

Autologous iPSC-derived dopaminergic progenitor cells

Enrolling by invitation

April 30, 2030

PD

NCT06167681

Phase I/II

Allogenic iPSC-derived dopaminergic progenitor cells

Recruiting

July, 2029

PD

NCT06145711

N/A

Autologous iPSC-derived dopaminergic progenitor cells

Not yet recruiting

December 22, 2025

PD

NCT06141317

Phase I/IIa

Allogenic adipose-derived MSC

Active, not recruiting

November 01, 2024

PD

NCT05901818

Phase I

Autologous iPSC-derived dopaminergic progenitor cells

Recruiting

December 31, 2026

PD

NCT05887466

Phase I/II

Allogenic ESC-derived dopamine progenitor cells

Active, not recruiting

February 07, 2026

PD

NCT05691114

Phase I

Allogenic human amniotic epithelial MSC

Recruiting

February, 2026

PD

NCT05635409

Phase I

Allogenic ESC-derived dopaminergic neurons

Recruiting

June, 2027

PD

NCT05152394

Phase I

Allogenic umbilical cord-derived MSC

Not yet recruiting

January, 2026

PD

NCT05094011

Phase I

Autologous adipose derived MSC

Not yet recruiting

July 31, 2026

PD

NCT04995081

Phase II

Allogenic adipose-derived MSC

Recruiting

January 15, 2026

PD

NCT02795052

N/A

Autologous BMSC

Recruiting

July 31, 2026

PD

  1. Information retrieved from https://clinicaltrials.gov/ by the date of 3rd July 2024. Disease condition search terms on https://clinicaltrials.gov included “Alzheimer’s disease”, “Alzheimer disease”, “Alzheimer”, “Parkinson disease”, “Parkinson’s disease”, “Parkinson”. Intervention/treatment search terms included “Stem cells” and “Stem cell”. Studies that were of ‘Unknown’ status or ‘Completed” status according to clinicaltrials.gov were not included in the table. BMSC, bone marrow-derived stem cells; ESC, embryonic stem cell; iPSC, induced pluripotent stem cell; MSC, mesenchymal stem cell