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PETBioNewsNewsHeart stem cell trial 'paused' in wake of study retraction

BioNews

Heart stem cell trial 'paused' in wake of study retraction

Published 2 November 2018 posted in News and appears in BioNews 974

Author

Shaoni Bhattacharya

Science Editor
Image by Sílvia Ferreira, Cristina Lopo and Eileen Gentleman via the Wellcome Collection. Depicts a single human stem cell embedded within a porous hydrogel matrix (false colour).
CC BY 4.0
Image by Sílvia Ferreira, Cristina Lopo and Eileen Gentleman via the Wellcome Collection. Depicts a single human stem cell embedded within a porous hydrogel matrix (false-coloured cryogenic scanning electron micrograph).

A US government agency has 'paused' a trial of stem cell treatment for heart failure following calls for 31 scientific papers to be retracted...

A US government agency has 'paused' a trial of stem cell treatment for heart failure following calls for 31 scientific papers to be retracted.

'Recent calls for the retraction of journal articles in related fields of cell therapy research have raised concerns about the scientific foundations of this trial,' said the National Heart, Lung and Blood Institute (NHLBI), which is part of the USA's National Institutes of Health.

The agency announced the suspension of the CONCERT-HF trial last week after Harvard Medical School and Brigham and Women's Hospital in Boston, Massachusetts, called for the papers by Dr Piero Anversa and his teams to be retracted amid allegations of falsified data (see BioNews 972).

A study in the New England Journal of Medicine was subsequently retracted, with the journal publishing an 'expression of concern' over two other papers from groups led by Dr Anversa. 

The CONCERT-HF trial is examining the safety and effectiveness of using a type of heart stem cell called c-kit+ cells, either alone or with mesenchymal stem cells from bone marrow, in patients with chronic heart failure.

Dr Anversa, who was formerly employed by Harvard Medical School and Brigham and Women's Hospital, was once hailed as a pioneer of cardiac stem cell research. Dr Anversa advanced the idea that the heart contained stem cells, which could regenerate heart muscle after a heart attack.

However, there had been issues over years when other groups failed to replicate some of Dr Anversa's results (see BioNews 251).

The CONCERT-HF trial is sponsored by NHBLI and the University of Texas. Dr Lem Moye, a biostatistician at the university, told STAT that the researchers had contacted trial patients about the pause and clarified that this is not directly related to the controversial work.

'Although we do not follow the protocols of Dr Anversa… NHLBI would like to assure itself that our lab is in fact generating c-kit+ cells,' Moye told STAT. 'We hope that this will not take long.'

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