Trends in clinical trials for stroke by cell therapy: data mining and the ICTRP portal site

Takaharu Negoro, Hanayuki Okura, Midori Maehata, Shigekazu Hayashi, Satoru Yoshida, Nozomi Takada, Akifumi Matsuyama

研究成果: Article


Definitive treatment of stroke constitutes an important thesis of regenerative medicine in the cerebrovascular field. However, to date, no cell therapy products for stroke are yet on the market. In this study, we examined the clinical research trends related to cell therapy products in the stroke field based on data obtained from the website and International Clinical Trials Research Platform (ICTRP) portal site. These data do not offer results of clinical trials comprehensively but provide information regarding various attributes of planned clinical trials including work in progress. We selected 78 cell therapy studies related to the field of stroke treatment from and ICTRP. These were analyzed according to, e.g., the reporting countries, origin (autologous or allogeneic), of cell used, cell types and source organs, the progress of translational phases, target phase of the disease (acute or chronic stroke), and route of administration. This analysis revealed a trend whereby in the acute phase, mesenchymal stem cells were administered intravenously at a relatively higher dose, whereas in the chronic phase a small number of cells were administered intracranially. Only two randomized controlled Phase III studies with over 100 patients are registered, but none of them has been completed. Thus, cell therapy against stroke appears to constitute a premature area compared with cartilage repair as assessed in our previous report. In addition, tracking by means of the ID number of each trial via PubMed revealed that 44% of clinical studies in this field have corresponding published results, which was also discussed.

ジャーナルnpj Regenerative Medicine
出版物ステータスPublished - 01-12-2019


All Science Journal Classification (ASJC) codes

  • Biomedical Engineering
  • Cell Biology
  • Developmental Biology
  • Medicine (miscellaneous)