# Stem cell therapy research for heart failure

> Live situation record from CLSTR: https://clstr.news/situations/stem-cell-therapy-research-for-heart-failure
> Updated: 2026-08-22T07:18:00.000Z. Sources: 14. Developments: 2.

Researchers at Drum Tower Hospital in Nanjing, China, have conducted a clinical trial using a new stem cell therapy to treat heart failure. The study utilized cardiomyocytes derived from induced pluripotent stem cells (iPSC), where cells are taken from the patient, reverted to an undifferentiated state, and then differentiated into specialized cardiomyocytes for injection into damaged heart tissue.

In a trial monitoring 20 patients, 10 received the iPSC-derived cardiomyocyte treatment while 10 served as a control group receiving coronary artery bypass surgery. Results published in Nature Medicine indicate that after 12 months, 9 out of the 10 patients in the cell therapy group showed significant improvement in heart function. Key metrics showing improvement included global myocardial perfusion and the distance walked in six minutes.

Patients in the treatment group reported better responses to daily activities, reduced chest pressure, and decreased shortness of breath. Crucially, the study addressed major safety concerns regarding regenerative cell therapies, noting that no patients developed tumors during the 12-month follow-up period.

## Claims

- Researchers at Drum Tower Hospital in Nanjing conducted a clinical trial using stem cell therapy. (corroborated by 4 sources)
- Nine out of ten treated patients showed improved heart function after 12 months. (corroborated by 4 sources)
- The trial involved 20 patients in total. (corroborated by 2 sources)
- No tumors were developed by the patients 12 months after the treatment. (single source)
- The study was published in Nature Medicine. (single source)

## Timeline

### 2026-08-22: Drum Tower Hospital trial shows stem cell therapy improves heart function

A clinical trial in China shows that iPSC-derived stem cell therapy improved heart function in 90% of patients with severe heart failure after 12 months, with no tumor development reported.

14 sources. https://clstr.news/cluster/doctor-saves-man-from-cardiac-arrest-on-ho-chi-minh-city-street

### 2026-08-12: Phu Tho General Hospital saves patient after 15 cardiac arrests

Physicians at Phu Tho General Hospital saved a 69-year-old patient who survived 15 separate cardiac arrest episodes through intensive resuscitation and pacemaker implantation.

3 sources. https://clstr.news/cluster/phu-tho-general-hospital-saves-patient-after-15-cardiac-arrests

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Cite as: Stem cell therapy research for heart failure. CLSTR, https://clstr.news/situations/stem-cell-therapy-research-for-heart-failure