Evidence map›Paper›PMID 34522725›Full record

ArticleRegenerative therapy2021

First-in-human clinical trial of transplantation of iPSC-derived NS/PCs in subacute complete spinal cord injury: Study protocol.

Keiko Sugai, Miho Sumida, Tomoko Shofuda, Ryo Yamaguchi, Takashi Tamura, Tsuneo Kohzuki, Takayuki Abe, Reo Shibata, Yasuhiro Kamata, Shuhei Ito and 9 more

Open access · goldAbstract read
In one paragraph

Article in Regenerative therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 119 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
119citing papers in PubMed, 3 pooled it
9.3field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

119 citing papers in PubMed, 3 syntheses or guidelines pooled it, 154 citations in OpenAlex.

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59 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

19 authors at 5 institutions in 1 country.

Keiko SugaiDepartment of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan.
Miho SumidaDepartment of Biomedical Research and Innovation, Institute for Clinical Research National Hospital Organization Osaka National Hospital, Osaka, Japan.
Tomoko ShofudaDepartment of Biomedical Research and Innovation, Institute for Clinical Research National Hospital Organization Osaka National Hospital, Osaka, Japan.
Ryo YamaguchiDepartment of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan.
Takashi TamuraR&D Center for Cell Therapy, Foundation for Biomedical Research and Innovation, Kobe, Japan.
Tsuneo KohzukiDepartment of Physiology, Keio University School of Medicine, Tokyo, Japan.
Takayuki AbeSchool of Data Science, Yokohama City University, Kanagawa, Japan.
Reo ShibataDepartment of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan.
Yasuhiro KamataDepartment of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan.
Shuhei ItoDepartment of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan.
Toshiki OkuboDepartment of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan.
Osahiko TsujiDepartment of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan.
Satoshi NoriDepartment of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan.
Narihito NagoshiDepartment of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan.
Shinya YamanakaCenter for IPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan.
Shin KawamataR&D Center for Cell Therapy, Foundation for Biomedical Research and Innovation, Kobe, Japan.
Yonehiro KanemuraDepartment of Biomedical Research and Innovation, Institute for Clinical Research National Hospital Organization Osaka National Hospital, Osaka, Japan.
Masaya NakamuraDepartment of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan.
Hideyuki OkanoDepartment of Physiology, Keio University School of Medicine, Tokyo, Japan.
Keio University · JPOsaka National Hospital · JPFoundation for Biomedical Research and Innovation · JPKyoto University · JPRIKEN Center for Biosystems Dynamics Research · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionOur group has conducted extensive basic and preclinical studies of the use of human induced pluripotent cell (iPSC)-derived neural stem/progenitor cell (hiPSC-NS/PC) grafts in models of spinal cord injury (SCI). Evidence from animal experiments suggests this approach is safe and effective. We are preparing to initiate a first-in-human clinical study of hiPSC-NS/PC transplantation in subacute SCI.

settingNS/PCs were prepared at a Good Manufacturing Practice-grade cell processing facility at Osaka National Hospital using a clinical-grade integration-free hiPSC line established by the iPSC Stock Project organized by the Kyoto University Center for iPS Cell Research and Application. After performing all quality checks, the long-term safety and efficacy of cells were confirmed using immunodeficient mouse models.

methodsThe forthcoming clinical study uses an open-label, single-arm design. The initial follow-up period is 1 year. The primary objective is to assess the safety of hiPSC-NS/PC transplantation in patients with subacute SCI. The secondary objective is to obtain preliminary evidence of its impact on neurological function and quality-of-life outcomes. Four patients with C3/4-Th10 level, complete subacute (within 24 days post-injury) SCI will be recruited. After obtaining consent, cryopreserved cells will be thawed and prepared following a multi-step process including treatment with a γ-secretase inhibitor to promote cell differentiation. A total of 2 × 10 DISCUSSION/

conclusionWe plan to start recruiting a patient as soon as the COVID-19 epidemic subsides. The primary focus of this clinical study is safety, and the number of transplanted cells may be too low to confirm efficacy. After confirming safety, a dose-escalation study is planned.

Indexed as

Induced pluripotent stem cellsNeural stem/progenitor cellsRegenerative medicineSpinal cord injuryTransplantation

Identifiers

PMID34522725
PMCPMC8427225
OpenAlexW3198277215

What OpenQuestion holds

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LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.