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Stemrim
Biotech & Life Sciences · Osaka, Japan · Founded 2006
A biotech company aiming to develop regeneration-inducing medicines MoreLess
StemRIM Inc. is a biopharmaceutical firm that emerged from Osaka University, concentrating on the development of what it terms "Regeneration-Inducing Medicine™". The company was established on October 30, 2006, with the objective of developing pharmaceuticals based on discoveries made by Professor Katsuto Tamai of Osaka University's Graduate School of Medicine. Professor Tamai, now the company's Founder and Chief Scientific Officer, conceived the core idea after observing the persistent skin regeneration in patients with dystrophic epidermolysis bullosa, a severe genetic disease. This led to the hypothesis that stem cells could be recruited from elsewhere in the body to repair damaged tissue, forming the foundation of the company's research.
The company's business model is that of a research and development-focused biotech, which collaborates with academic institutions like Osaka University to advance its discoveries. StemRIM's primary strategy involves licensing its developed drug candidates to pharmaceutical companies for clinical trials, manufacturing, and sales. In return, StemRIM receives upfront payments, milestone revenues based on development progress, and royalties on sales. A key partnership was established with Shionogi & Co., Ltd. for the development and potential commercialization of its leading drug candidate, Redasemtide.
StemRIM's core product concept, Regeneration-Inducing Medicine™, represents a departure from conventional cell therapies. Instead of extracting, culturing, and re-injecting cells, this approach uses intravenously administered compounds, which are peptides or proteins, to stimulate the patient's own bone marrow-derived mesenchymal stem cells. These activated stem cells then travel through the bloodstream to the site of injury or disease and differentiate into various cell types to promote tissue repair. The leading pipeline candidate, Redasemtide, is a synthetic peptide derived from the HMGB1 protein, engineered to trigger stem cell mobilization without inducing inflammation. This platform technology is being investigated for a wide array of difficult-to-treat conditions, including epidermolysis bullosa, acute ischemic stroke, cardiomyopathy, chronic liver disease, and knee osteoarthritis. Having gone public on the Tokyo Stock Exchange in August 2019, the company directs its capital towards furthering its research and development pipelines.
Keywords: Regeneration-Inducing Medicine, stem cell mobilization, biopharmaceutical, Osaka University, Katsuto Tamai, Redasemtide, HMGB1 peptide, tissue regeneration, drug discovery, clinical trials, Shionogi, epidermolysis bullosa, ischemic stroke, cardiomyopathy, regenerative therapy, peptide therapeutics, drug development, biotech, life sciences, cell-free therapy, tissue repair, chronic disease treatment, rare diseases, pharmaceutical licensing
Valuation & funding
Stemrim funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| IPO✓Exit | Aug 2019 | $0 | — | Undisclosed | ↗ |
| LATE VC✓Equity / VC | Dec 2018 | $6.8M | $45M | M3 · Miyako Capital · SMBC Venture Capital · Daiwa Corporate Investment | — |
| EARLY VCEquity / VC | Dec 2017 | $1.5M | $6.2M | Mitsubishi UFJ Capital | — |
| EARLY VC✓Equity / VC | Nov 2017 | $9M | $36M | SMBC Nikko Securities America · Nippon Venture Capital · SMBC Venture Capital · Kanagawa Science Park | — |
| LATE VC✓Equity / VC | Dec 2014 | $6.7M | $27M | Shionogi | — |
| SPINOUT✓Other financing | Oct 2006 | Kyoto University | — |
Financials
Revenue, earnings and profit over time
Reported history and available estimates. Estimated years are marked “E”; sparse fields are left blank rather than inferred.
Growth signals
Stemrim website traffic
Latest recorded traffic for Stemrim is 4.7K monthly website visits, up 51.6% over the last three months.
Comparisons
Stemrim compared with similar companies
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Talent graph
Stemrim's talent
Source: Dealroom Talent Intelligence.
Investors
13 investors on Stemrim's cap table
Sourced from Dealroom's funding and investor records.












Global footprint
Where Stemrim has talent and traffic
In the news
Latest news about Stemrim
Recent press, funding announcements, and product moves mentioning Stemrim — open to read from the original sources.
Market sentiment
What the market is saying about Stemrim
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