Prof. Dr. Ahmet Rasim Küçükusta

Dikkat: Yazının sonunda ek var!

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USA’ da yapılan yeni bir araştırmada, doktorlara ilaç pazarlaması yapılmasıyla opioid (opiyat) yani uyuşturucu ilaç yazılması ve bunların aşırı dozda kullanılmasının sebep olduğu ölümler arasında bağlantı olduğu gösterildi (1).

Araştırma medyada tıp adına utanç verici şu başlıklarla haber oldu.

New York Times: “Araştırma ilaç üreticilerinin doktorlara hediyelerinin aşırı doza bağlı ölümleri artırdığını gösteriyor” Study Links Drug Maker Gifts for Doctors to More Overdose Deaths (2).

CNN: Doktorlar ne kadar çok opiyat yazarsa o kadar çok para kazanıyor (The more opioids doctors prescribe, the more money they make (3).

Harvard: Doktorlar ne kadar çok opiyat yazarsa o kadar çok para ödeniyor (The more opioids doctors prescribe, the more they get paid (4).

Araştırmaya göre, opioid üreticilerinin doktorlara çok sayıda hediye ve ödeme yaptığı eyaletlerde opioid aşırı dozlarına bağlı ölümler daha az pazarlama yapılan eyaletlere göre daha fazla bulundu.

JAMA’ da yayınlanan araştırma, endüstrinin opioid ilaçların teşviki için 2013-2015 senelerinde 68 bin doktora yemek, seyahat ve danışmanlık için 40 milyon dolar ödeme yaptığını ortaya koyuyor.

Hesaplamalar, bir eyalette 100 bin doktora yapılan her üç ilave ödemenin, aşırı dozdan ölümleri bir sene sonra yüzde 18 artırdığını gösteriyor.

Daha önce yapılan bir araştırmada da, ilaç şirketlerinden bedava öğlen yemeği alınması veya çeşitli adlar altında küçük miktarlarda ödeme yapılmasıyla doktorların daha fazla opioid yazması arasında bir ilişki olduğu ortaya çıkmıştı (5).  

Opiyat nedir?

Opiyatlar, haşhaştan elde edilen ve asıl olarak ağrı kesici (analjezik) etkileri için kullanılan bir grup kimyasaldır.

Bunların tabii olanları morfin ve kodein, yarı-sentetik olanları eroin, oksikodon ve hidromorfin, sentetik olanları ise fentanil, tramazol, metadon ve petidindir.

Meme kanserinden daha fazla ölüme yol açıyor

ABD Hastalık Kontrol ve Önleme Merkezine bağlı Ulusal Sağlık İstatistikleri Merkezi’nden yayınlanan rapora göre, 2016 yılında 42 bin 249 kişi uyuşturucuya bağlı olarak hayatını kaybetti.

Ölümlerin yüzde 66’sında ise opioidler sorumlu tutuldu. Bunun, her yıl meme kanserinden ölen 41 bin 070 Amerikalıdan binlerce daha fazla olduğu açıklandı (6). 

Gelelim neticeye

JAMA gibi muteber bir tıp dergisinde bilimsel araştırmaların yerini ilaç şirketlerinin pazarlama faaliyetlerinin alması modern tıp bilimin nasıl bir çıkmaza girdiğinin açık ve net göstergesidir.

Tedavi eden tıbbın hasta eden hatta öldüren tıp durumuna dönüşmesi biz hekimlere acı veriyor.

Bu kötü gidişat, endüstri ve doktorlar arasındaki menfaat münasebetlerinin sıfırlanmasıyla mümkündür, başka yolu yok.

Kaynaklar:

1.https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2720914

2.https://www.nytimes.com/2019/01/18/health/opioids-doctors-overdose-deaths.html

3.https://edition.cnn.com/2018/03/11/health/prescription-opioid-payments-eprise/index.html

4.https://www.hsph.harvard.edu/news/hsph-in-the-news/opioids-doctors-prescriptions-payments/

5.https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2681059

6.http://www.haberturk.com/opioidler-meme-kanserinden-daha-fazla-insani-olduruyor-1764594

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EK 1 (2.8.2023): Are medical journals dead?

Problems that have plagued medical journals for decades include the failure of peer review, replication crisis, ghost-writing, and the influence of Big Pharma.

In 2004, Richard Horton, editor of the Lancet wrote, “Journals have devolved into information laundering operations for the pharmaceutical industry.”

More recently, Peter Gøtzsche, one of the founding fathers of the Cochrane Collaboration said, “The medical publishing system is broken. It doesn’t ensure that solid research which goes against financial interests can get published without any major obstacles.”

Scientific publishing is now one of the most profitable businesses. Elsevier, for example, made$2.9 billion in annual revenue with a profit margin approaching 40%, rivalling that of Apple and Google.

But despite these impressive numbers, trust in medical journals has diminished, and this has only been exacerbated by the covid-19 pandemic. 

Peer review fail

Former editor of The BMJ Richard Smith once famously wrote; “Peer review is faith not evidence based, but most scientists believe in it as some people believe in the Loch Ness monster.”

In a recent conversation with Richard Smith, he explained why.

Richard Smith, former editor of The BMJ

“Peer review was thought to be at the heart of science – that is, who gets a grant or who gets a Nobel Prize – and I suppose it wasn’t until the 80s and 90s that somebody actually examined it – it was just sort of assumed to be a good thing,” said Smith.

“Then people began a series of experiments – there was a Cochrane review – looking at the evidence to see if peer-review was beneficial. And actually, what they found was that there was really no evidence,” he said.

Smith, who worked at The BMJ for 25 years said the peer-review process is slow, it’s expensive, and it stifles the publication of innovative ideas.

“There are lots of examples of ground-breaking work that were rejected by peer-reviewers but go on to win Nobel Prizes. Is the work crazy? Or is it truly genius? Peer review is not good at deciding that,” he said.

Peer review also fails to detect fraud. The recent Surgisphere scandal is a case in point.

Lancet and New England Journal of Medicine were forced to retract studies after researchers reported a link between treatment with hydroxychloroquine and increased death of hospitalised covid patients.

Glaring discrepancies were found in the database underpinning the studies, but were not detected in the peer-review process.

“If researchers say there were 200 patients in the study, then you assume there were. But we have increasing evidence that that’s not the case – there are a lot of zombie trials that never happened or have been manipulated in some way,” said Smith.

“So, in a nutshell, we have lots and lots of evidence of the downside of peer review and really no convincing evidence of its upside,” he added.

Rita Redberg, a cardiologist at the University of California San Francisco, who recently stepped down after 14 years as chief editor of JAMA Internal Medicine, concedes that peer-review is “not perfect”. 

Rita Redberg, cardiologist, former chief editor of JAMA Internal Medicine

“You always assume that what the authors are telling you is true. The process depends on the honesty of the authors, and yes, people can be dishonest.  But we’re doctors, we’re not investigators with the resources of the FBI. Of course, when any potential dishonesty comes to our attention, we will investigate,” said Redberg.

“It has its problems, but what’s the alternative?  No peer-review? In general, I think peer review is much better than a system without peer review,” added Redberg.

Politicisation of journals

During the pandemic, some journal editors became increasingly politicised. 

Editors at the New England Journal of Medicine, for example, took the rare step of writing an editorial in 2020, urging American voters to oust the sitting President. It was a controversial move.

John Ioannidis, Professor of Medicine at Stanford University, and the most cited scientist in the world, said he is not in favour of the politicisation of medical journals.

“The message it sends is that scientific journals are just another arm of the political propaganda machine,” said Ioannidis.

John Ioannidis, Professor of Medicine, Stanford University

“That’s not to say that scientific journals shouldn’t take stances on important issues that are decided by politicians like climate change, regulation of industry, and environmental pollution. I just think the editorials were very poor choices and not for the pages of the journals,” he said.

Ioannidis is not convinced that these political statements swayed anyone to cross the political aisle, and thinks the editorials should be retracted.

“To be honest, the editors who made these statements should retract their own editorials on these political issues. Editors can keep their political orientation and still cover all the big important medical issues,” he added.

Emergence of pre-prints

Pre-prints are non-peer-reviewed articles posted on servers such as medRxiv and bioRxiv, that allow thousands of people to view the research. Many see this as a double-edged sword.

It enables faster data sharing in an emergency and quick feedback, but it also opens the door to sloppy science that can be widely disseminated by the public and the media.

Redberg’s personal view is that pre-prints, which have not undergone peer-review, are potentially harmful. 

“I think there’s a danger of putting out information that’s not accurate. For approval of drugs and devices, it’s worth taking the time to get things right. I feel much more confident that you’re going to get it right if it’s undergone peer review,” said Redberg.

“I think it started with very good intentions – people sharing their work and getting comments – but the articles stay up there even after they’re published in journals, and having an older, different–and possibly inaccurate–version remaining in the public sphere may inadvertently disseminate incorrect information,” added Redberg.

Ioannidis, on the other hand, says he is in favour of pre-prints because “they offer more transparency in the system, and they allow for some earlier dissemination of work,”.

But he warned it can be a battlefield citing experiences where some of his pre-prints would receive more than 1000 peer reviews within a day of release. 

“A few were very, very helpful. Hundreds of them were just abuse. It was a very traumatic experience. If you separate what is the good contribution versus the abuse, then I think that they’re useful,” said Ioannidis.

Smith argues that pre-prints actually prove his point about the failure of peer-review. “If you look at what eventually appears in journals, it’s usually very similar to the original pre-print. So, it’s evidence that peer review has not made much of a difference,” said Smith.

“What I argue is that the peer review should not be three or four selected people looking at something before it’s published, but where the ideas are available to everybody. That’s the real peer review,” he said.

Scientific censorship

Publishing articles in medical journals during the pandemic, especially research that was critical of vaccine safety, was sometimes censored or retracted for no good reason.

For example, a peer-reviewed paper linking the mRNA vaccines with myocarditis, authored by doctors Jessica Rose and Peter McCullough, was suddenly withdrawn with insufficient cause.

Some high-profile scientists have decided that the time burden and logistical intensity of publishing in the major medical journals is simply not worth it.

Carl Heneghan and Tom Jefferson, for example, two of the most reputable researchers in the world, say they’ll only publish in specialised journals that have peer-reviewers with the right expertise. 

Otherwise, the bulk of their work is published on the writing platform, Substack (Trust The Evidence).

“I do worry about that,” says Ioannidis.  “We need the voices of people like Carl Heneghan and Tom Jefferson and others in the mix. I suppose if they’ve been thwarted, then there must be some venue where that missing part can appear, and perhaps Substack caters to that need.”

“I do wish that we get them back into the traditional type of medical journals though. If the classical literature is missing a very key perspective like theirs, then the distortion becomes bigger,” he said.

“It makes it more difficult to balance the literature when knowledgeable, critical voices are missing.  I know I may sound like I’m willing to stick to that sinking ship. But I would prefer to not fragment science into medical journals, and Substack and who knows where else,” added Ioannidis.

Smith on the other hand, is more enthusiastic about self-publishing.

“I’m in favour of getting it out there. Let the world decide. It makes a lot of sense to me,” says Smith citing his own challenges with publishing in medical journals.

“Recently, I submitted a piece to the Lancet – a book review – and there was the hassle of all the forms you have to fill in, all the comments from the editors, which I mean – maybe it’s arrogance on my part – but didn’t seem to make things much better,” said Smith in a perturbed tone.

“You’ve got a particular voice, and they disrupt it to some extent. So, it ends up much messier. Doesn’t feel to me like there’s a lot of value added in that process,” he said.

Smith says self-publishing is more of a problem if you are a junior researcher and want to rise in the academic arena. 

“You need to publish in these journals because that’s how you’re judged. If you’ve published in the New England Journal of Medicine, it’s assumed to be a very significant piece of research. I mean, it’s completely unscientific to use the place you publish as a surrogate for the value of the research, but that’s what continues to happen,” said Smith.

Diminished trust

Redberg says it’s not just medical journals that lost trust.

“I think people’s trust in medicine and public health diminished in general in the last few years. The sad part to me is that science became political – whether you wore a mask or not became a political statement – It’s not a political question. It’s a scientific question,” said Redberg. 

Ioannidis who famously authored the paper, “Why Most Published Research Findings Are False” said, “I think that we are losing…well, we have already lost the trust of a major part of the population.”

“Covid created a lot of extra stress on the system. People wanted to publish papers very quickly, by now it’s almost a million papers. We’ve looked at the covid literature and most of it was very sloppy, corners were cut, probably worse than usual,” said Ioannidis.

“The frontier of science is broken at the moment. If we do not acknowledge that we have a problem – and make no mistake – we have a very serious problem, then it will be difficult to defend against conspiracy theories or against people who just want to make money by spreading misinformation or disinformation,” he added.

So, are medical journals dead?

“I don’t think medical journals are dead, no. I feel like they’re busier and more important than ever, because there’s so much innovation and I think that disseminating it through a high-quality, peer-review process is the best way to go,” said Redberg.

Ioannidis is quick to acknowledge there is a problem with medical journals. “They are very sick, and they suffer from all sorts of diseases, but I just don’t want to say that I’m giving up on them. They need to transform. I hope that they get better. But I don’t want to proclaim them dead yet.”

Smith agrees that there’s a role for medical journals, but he seems less invested. 

“It’s interesting to me in a way that journals are still alive, because I think there’s a lot of reasons why they should be dead,” said Smith.

Kaynak: https://brokenscience.org/are-medical-journals-dead/?utm_source=substack&utm_medium=email

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Yazı için 1 yorum yapılmış:

1. Selami Şahin dedi ki:

   16 Mart 2019, 07:46

   Bu aslında tüm ilaçlar için geçerlidir. kazı kazan değildir bu YAZ KAZAN’ dır.

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