Category: bmj

Sleuths flag ‘complete mismatch’ in data of BMJ stem cell study 

A week after The BMJ published a highly publicized paper claiming stem cell therapy can reduce the risk of heart failure, sleuths have unearthed what they are calling “serious” inconsistencies in the data. 

The paper claims the phase III clinical trial published October 29 included over 400 patients in Shiraz, Iran, and tested whether stem cell therapy lowers the risk of heart failure after a heart attack. 

The results were celebrated in a press release by the journal and appeared in several news outlets, with New Scientist calling the study the “strongest evidence yet that stem cells can help the heart repair itself.”

Continue reading Sleuths flag ‘complete mismatch’ in data of BMJ stem cell study 

Controversial Paxil “Study 329” earns expression of concern after critic sues publisher

After more than 20 years of criticism and calls for retraction, a journal has placed an expression of concern on a study of the antidepressant Paxil in teens that critics say has led to unwarranted and potentially harmful prescribing of the drug to youth. 

The 2001 paper, published in the Journal of the American Academy of Child & Adolescent Psychiatry (JAACAP), reported findings from a randomized trial known as “Study 329,” which concluded the antidepressant Paxil was safe and effective in kids ages 12 to 18. 

In 2012, Paxil maker GlaxoSmithKline agreed to pay $3 billion to settle civil and criminal charges that included “unlawful promotion” of the drug for adolescents, for whom the product was never approved, and allegations the company “participated in preparing, publishing and distributing a misleading medical journal article” — the JAACAP paper.  A reanalysis in 2015 found the drug was “ineffective and unsafe” for the age group studied.

Continue reading Controversial Paxil “Study 329” earns expression of concern after critic sues publisher

Study on apple cider vinegar for weight loss retracted after many raise concerns

Pranithan Chorruangsak/iStock

Easy fixes for complex health problems can be tempting — but they rarely pan out. That seems to be the case for the investigators on one clinical trial who claimed consuming apple cider vinegar caused obese teens and young adults to lose weight. 

Their article appeared in March 2024 in BMJ Nutrition, Prevention & Health. The journal is retracting the paper “because the authors’ analyses could not be replicated and multiple errors were identified,” according to the retraction notice.

The retraction, dated September 23, comes more than a year after sleuths pointed out some of these errors and other problems with the analysis. 

Continue reading Study on apple cider vinegar for weight loss retracted after many raise concerns

Medical societies call for BMJ to retract ‘misleading and irresponsible’ guideline

The BMJ’s clinical practice guideline for chronic spine pain

Thirty-four medical professional societies have called for The BMJ to retract a recently published guideline recommending against the use of interventional procedures, such as steroid or anaesthetic injections, to treat chronic back pain. 

The journal published the guideline in February as part of its Rapid Recommendations program alongside a meta-analysis and systematic review of published research on the procedures, which the guideline panel used to inform its recommendations. The publications received international news coverage and enough chatter on social media platforms such as X and Bluesky to place them in the top 5 percent of all articles scored by Altmetric, a data company that tracks digital mentions of research. 

The societies, led by the International Pain and Spine Intervention Society, represent clinicians who prescribe or perform the interventional spine procedures the guideline recommends against. The groups “have serious concerns about the methodology and conclusions drawn in these publications and their potential impact on patient care,” they wrote in a statement dated March 18, and summarized in a rapid response on the BMJ’s website. The statement has since been published in The Spine Journal and Interventional Pain Medicine. 

Continue reading Medical societies call for BMJ to retract ‘misleading and irresponsible’ guideline

BMJ says it’s “an ongoing effort” to find articles by plagiarizing concussion researcher Paul McCrory

Paul McCrory

Weeks after the British Medical Journal corrected a press release about nine retractions and dozens of expressions of concern to mark articles by a prominent concussion expert, a spokesperson for the journal told us it’s still “an ongoing effort” to identify all the articles on which the expert is the sole author. 

The concussion researcher, Paul McCrory, was editor in chief of the British Journal of Sports Medicine, published by the BMJ, from 2001-2008, and published many editorials on which he was the only listed author. McCrory also chaired the influential Concussion in Sport Group, was involved in drafting consensus statements on concussion in sports, and consulted with leagues.

Ten of those articles, however, have been retracted this year for plagiarism, recycling his own work, and misrepresenting a reference. 

In comments to us, his only public statements to date about the matter, McCrory acknowledged some of the plagiarism as unintentional “errors,” and offered “my sincere and humble apologies.” He no longer chairs the Concussion in Sport Group, and the Australian Football League has critically reviewed his work for the league, the Guardian Australia reported. 

Continue reading BMJ says it’s “an ongoing effort” to find articles by plagiarizing concussion researcher Paul McCrory

Authors claim clinical trial data came from one center. It came from three.

A BMJ journal has retracted a 2017 paper that made a false claim about the clinical trial in question. 

The Acupuncture in Medicine paper reported the results of a clinical trial about the impact of acupuncture and Chinese herbal medicine on stroke, gathered from one center. However, in November, the editors of the journal discovered that the authors had completed the trial at three centers, and had already published the data in Scientific Reports in 2016. The authors say the duplication and misrepresentation of the data stemmed from “confusion and misunderstanding.” Continue reading Authors claim clinical trial data came from one center. It came from three.

BMJ journal pulls case report after UK tabloids publish graphic photos

A BMJ journal has retracted a medical case report about a couple in the United Kingdom who were infected by parasitic worms while on a Caribbean cruise.

The paper in BMJ Case Reports included graphic photos of the patients’ buttocks, the site of the infection, which were republished within a week by UK tabloids.

Specifics about when and why the journal retracted the paper remains unclear. BMJ Publishing Group, the journal, and the corresponding author have not responded to multiple requests for comment.

A UK-based lawyer, who has represented doctors in cases that touch on publishing and media law, told us there could be legal trouble. Martin Soames, of London firm Simons Muirhead & Burton, told Retraction Watch that UK laws governing patient confidentiality or protection of personal information could apply, raising problems for both the publisher and the doctors who wrote the paper. [See update at the end of the post, in which the editor says the paper was removed, and “does not consider that there are any issues of liability.”]  Continue reading BMJ journal pulls case report after UK tabloids publish graphic photos

“This is about saving kids’ lives:” Authors update pivotal car seat safety results

A BMJ journal has published an updated analysis of a 2007 paper that shaped current car seat safety recommendations, which reports less conclusive findings about the safest way to install the seat.

The updated analysis follows an expression of concern the journal Injury Prevention added to the paper in June 2017, after the authors and an outside expert could not replicate the results.

The 2007 paper made a big claim: Children ages one to two years old are five times more likely to sustain serious injuries in a crash when restrained in a forward-facing car seat than a rear-facing seat.

Benjamin Hoffman, a professor of pediatrics at Oregon Health & Science University in Portland who was not involved in the 2007 research, told us: Continue reading “This is about saving kids’ lives:” Authors update pivotal car seat safety results

Bone researcher is up to 17 retractions

A bone researcher has lost three more papers for scientific misconduct.

The new retractions bring Yoshihiro Sato’s total to 17 and put him on our Leaderboard.

According to the retraction notices, Sato asked the Journal of Neurology, Neurosurgery, and Psychiatry to retract three of his papers “due to scientific misconduct.” In the letter, Sato—who is corresponding author on all three papers—explained he included co-authors without their consent and that none of the other authors listed worked on the study or article.

In May, the editors issued expressions of concern while they investigated (1, 2, 3), and last month, the journal retracted the three articles.

Here’s the retraction notice for “Amelioration of osteopenia and hypovitaminosis D by 1alpha-hydroxyvitamin D3 in elderly patients with Parkinson’s disease:” Continue reading Bone researcher is up to 17 retractions

“Right to be forgotten” takes down BMJ’s 15-year-old film review

A subject in a documentary film about the psychology of religious ideation has pushed the BMJ to take down its review of the film, based on a complaint citing a European internet privacy rule.

On July 3, BMJ posted a retraction notice for an article that barely said anything:

This article has been retracted by the journal following a complaint.

The 2002 article is a review of a documentary film entitled “Those Who Are Jesus,” directed by Steven Eastwood, a British filmmaker. The review has been removed from the BMJ site, as well as PubMed.   

BMJ told Retraction Watch that it took down the film review in response to a European citizen exercising his or her “right to be forgotten,” an internet privacy idea that, according to the European Union, ensures:

Continue reading “Right to be forgotten” takes down BMJ’s 15-year-old film review