This timeline offers a comprehensive look into the pioneering developments that have propelled stem cell research from theoretical origins to transformative medical applications. Since the term “stem cell” first emerged in 1868, each milestone reflects a deeper understanding of cellular biology, reshaping possibilities for treating conditions from leukemia to neurodegenerative disorders. These advances reveal how stem cell science has steadily evolved, opening doors to regenerative therapies and personalized medicine that redefine our approach to healing. By tracing these critical moments, this timeline not only highlights scientific progress but underscores the potential for future breakthroughs that may soon redefine healthcare.
1868
First Use of the Term "Stem Cell"
Ernst Haeckel, a German biologist, introduces the term “Stammzelle” (stem cell) in his work on evolution to describe the ancestor unicellular organism from which all multicellular organisms evolved.
Russian histologist Alexander Maksimov proposes the existence of hematopoietic stem cells at the Congress of Hematologic Society in Berlin, laying the foundation for stem cell research.
First Successful Allogeneic Bone Marrow Transplant
Dr. Robert A. Good performs the first successful bone marrow transplant between siblings who are not identical twins, treating severe combined immunodeficiency disease (SCID)
Shinya Yamanaka and Sir John Gurdon receive the Nobel Prize in Physiology or Medicine for discovering that mature cells can be reprogrammed to become pluripotent.
First Clinical Trial of Stem Cell Therapy for Autism
Duke University initiates a trial using autologous umbilical cord blood stem cells to treat autism, showing promising improvements in behavior and communication.
Evaluating the impact of mesenchymal stem cell therapy on visual acuity and retinal nerve fiber layer thickness in optic neuropathy patients: a comprehensive systematic review and meta-analysis.
Stem Cell Therapies for Autism Show Promising Results
Clinical trials report improvements in social interaction and communication in children with autism after stem cell therapy, offering hope for new treatments.
FDA Approval for Pediatric Graft vs. Host Disease Treatment
Ryoncil (remestemcel-L-rknd) receives FDA approval for the treatment of steroid-refractory acute graft-versus-host disease (SR-aGVHD) in pediatric patients 2 months of age and older, becoming the first FDA-approved mesenchymal stromal cell (MSC) therapy.
First iPSC-Based Therapy Enters a U.S. Phase 3 Clinical Trial (IVF / Egg Maturation)
Gameto receives FDA IND clearance for Fertilo, an iPSC-derived ovarian support cell approach designed to support egg maturation with a reduced hormone-injection burden compared with conventional IVF stimulation protocols.
Breakthrough in Cell Therapy for Drug-Resistant Epilepsy
Neurona Therapeutics reports new long-term clinical data from ongoing NRTX-1001 trials in adults with drug-resistant focal epilepsy, including robust seizure reduction in treated participants.
CAR T-Cell Therapy for Lupus Using iPSC-Derived Cells
Fate Therapeutics reports updated Phase 1 clinical data for FT819, an off-the-shelf, iPSC-derived CAR T-cell therapy being evaluated for systemic lupus erythematosus (SLE), with treated participants showing meaningful decreases in disease activity.
Aspen Neuroscience reports completion of dose escalation and the first two cohorts in the ASPIRO Phase 1/2a trial of ANPD001, an autologous (patient-derived) iPSC-based dopaminergic neuronal precursor cell therapy for Parkinson’s disease.
Global Milestone: 116 Regulatory-Approved hPSC Trials and 1,200+ Patients Dosed
A 2025 Cell Stem Cell review reports that, as of December 2024, 83 human pluripotent stem cell (hPSC) products were being evaluated across 116 regulatory-approved clinical trials worldwide, with more than 1,200 patients dosed and no generalizable safety concerns identified.
FDA Clears Multiple iPSC Trials for Major CNS Diseases
XellSmart announces FDA IND clearances enabling Phase I clinical trials of allogeneic iPSC-derived cell therapies targeting Parkinson’s disease, ALS, and spinal cord injury.
Autologous iPSC Parkinson’s Program Expands Clinical Progress
Aspen Neuroscience reports completion of Cohort Three dosing in the ASPIRO Phase 1/2a trial of ANPD001 and an expansion of GMP manufacturing capabilities to support later-stage clinical development.