This study tested chondroitin sulfate 800 mg/day (CS) pharmaceutical-grade in the management of symptomatic knee osteoarthritis. It was designed as a prospective, randomised, 6-month, 3-arm, double-blind, double-dummy, placebo and celecoxib (200 mg/day)-controlled trial. The primary endpoints were changes in pain on a Visual Analogue Scale (VAS) and in the Lequesne Index (LI). Minimal-Clinically Important Improvement (MCII), Patient-Acceptable Symptoms State (PASS) were used as secondary endpoints.
A total of 604 patients, diagnosed according to American College of Rheumalogy (ACR) criteria, were recruited in five European countries and followed for 182 days. CS and celecoxib showed a greater significant reduction in pain and LI than placebo. In the intention-to-treat (ITT) population, pain reduction in VAS at day 182 in the CS group (−42.6 mm) and in celecoxib group (−39.5 mm) was significantly greater than the placebo group (−33.3 mm) (p=0.001 for CS and p=0.009 for celecoxib). No difference observed between CS and celecoxib. Similar trend for the LI, as reduction in this metric in the CS group (−4.7) and celecoxib group (−4.6) was significantly greater than the placebo group (−3.7) (p=0.023 for CS and p=0.015 for celecoxib). Again, no difference was observed between CS and celecoxib. Both secondary endpoints (MCII and PASS) at day 182 improved significantly in the CS and celecoxib groups. All treatments demonstrated excellent safety profiles.
The authors concluded that a 800 mg/day pharmaceutical-grade CS is superior to placebo and similar to celecoxib in reducing pain and improving function over 6 months in symptomatic knee osteoarthritis (OA) patients. This formulation of CS should be considered a first-line treatment in the medical management of knee OA.
In my view, this is a good study with clear and useful results: CS seems to be efficacious and safe. Another recent study confirmed the superiority of CS over celecoxib at reducing cartilage volume loss in knee OA patients.
The current Cochrane review does not yet account for the new data; it concluded cautiously positive: A review of randomized trials of mostly low quality reveals that chondroitin (alone or in combination with glucosamine) was better than placebo in improving pain in participants with osteoarthritis in short-term studies. The benefit was small to moderate with an 8 point greater improvement in pain (range 0 to 100) and a 2 point greater improvement in Lequesne’s index (range 0 to 24), both seeming clinically meaningful. These differences persisted in some sensitivity analyses and not others. Chondroitin had a lower risk of serious adverse events compared with control. More high-quality studies are needed to explore the role of chondroitin in the treatment of osteoarthritis. The combination of some efficacy and low risk associated with chondroitin may explain its popularity among patients as an over-the-counter supplement.
The call for more high quality trials was justified but has now been answered. In my view, CS can be considered an evidence-based option in the management of OA.
I am sure you always wanted to know what animal chiropractic is all about!
This website explains it quite well:
START OF QUOTES
…Animal chiropractic (veterinary spinal manipulative therapy) focuses on the preservation and health/wellness of the neuro-musculo-skeletal system. Chiropractic is the science that is centered around the relationship between the spine and the nervous system. The spine is your body’s foundation and the nervous system, including your brain, spinal cord and nerves, controls your entire body. They must work together harmoniously to improve one’s general health and their ability heal. If the systems are not functioning to their highest potential you may experience changes in digestion, heart and lung function, reproduction and most evidently musculature. When adjacent joints are in an abnormal position, called a subluxation, the nervous system and all that it controls will be negatively impacted. If these subluxations are not corrected, they can result in prolonged inappropriate stimulation of nerves. This could result in reduced function internally, musculo-skeletal dysfunction and pain.
Spinal manipulation is the art of restoring full and pain free range of motion to joints and can greatly benefit an animal after they have experienced subluxations. The veterinarian will use their hands to palpate joints both statically and in motion. By doing this, they can determine where the animal is experiencing decreased motion or misaligned joints. Once identified, an adjustment can be performed. An adjustment or spinal manipulation is a gentle, specific, quick and low force thrust that will be applied at an angle specific to the different areas of motion in the spine and extremities. Only a certified animal chiropractor will understand the complexity involved in adjustments and can best assess if an animal can benefit from chiropractic care.
Many animals can benefit from this alternative therapy. If you notice that your animal has a particularly sensitive spot somewhere on their body, is walking or trotting differently and or not performing to the same ability they have previously, they may be a candidate for a chiropractic assessment. However, an animal does not need to be sick or injured to benefit from chiropractic care. Animals in good health or ones used for sporting activities are also prime candidates for chiropractic care. By maintaining your pet’s proper spinal alignment and mobility they will attain optimal function of muscles, nerves and tissues that support the joints. When the body can move freely your pet will experience improved mobility, stance and flexibility, which can evolve into improved agility, endurance and overall performance. Finally, many people have never considered that chiropractic care can also benefit their animal by boosting their immune response. It can aid in providing a healthier metabolism and a vibrant nervous system which all facilitate your animal’s natural ability to heal themselves from within. Chiropractic care can enhance the quality of your pet’s life ensuring many active and healthy years to come.
…during veterinary school I began the process of researching how to become an animal chiropractor or veterinary spinal manipulative therapist. As I researched further, I noticed that this specialized profession has grown. It became apparent that one should be certified by either the College of Animal Chiropractors or American Veterinary Chiropractic Association to practice on animals… It was surprising to find out that there are only four programs in the USA and Canada that are approved by both organizations. The courses consisted of over 200 hours of intensive study and hands on learning followed by certification testing…
END OF QUOTE
Yes, I did shorten the quote a bit but, rest assured, I did not cut out a single word about the efficacy of animal chiropractic. Even if I had wanted to, I couldn’t: there is no mention of it in the article.
I wonder why!
Looking into Medline, I found several reports related to the subject:
- One study suggested an association between chiropractic findings in the lumbar vertebrae and urinary incontinence and retention in dogs.
- A case report highlighted the potential benefits of combining traditional medical management with chiropractic treatment and physical therapy techniques for management of severe acute-onset torticollis in a giraffe.
- A review explained that there is limited evidence supporting the effectiveness of spinal mobilization and manipulation in animals.
- An observational study suggested that chiropractic manipulations elicit slight but significant changes in thoracolumbar and pelvic kinematics.
- A comparative study measured the spinal mechanical nociceptive thresholds in 38 horses, and showed that they increased by 27, 12 and 8% in the chiropractic, massage and phenylbutazone groups, respectively.
… and that was basically it. Not a single study to suggest that chiropractic is effective for specific conditions of animals.
Frustrated, I went on the site of the ‘College of Animal Chiropractic’; surely there I would find the evidence I was looking for. They offer lots of platitudes and this largely nonsensical statement:
“When a joint become restricted in its range of motion(hypomobile or ‘locked-up’), through trauma, repetitive injury, degenerative changes, or structural stresses, the surrounding tissues are affected. This, in turn, further affects the joints ability to move freely and sensitive structures are activated causing the area to be sensitive or painful. Nerves are the communication links between all tissues in the body to the brain and spinal cord; when joint dysfunction is present, messages to other areas are also affected, which can lead to pain, weakness, reduced function, and compensatory changes. Animal chiropractic focuses on the restoration of movement and the promotion of heath by restoring normal joint mechanics and soft-tissue function, thus, normalizing neurological patterns that facilitate healing . The main tool an animal chiropractor uses to restore joint motion is called an “adjustment”, or veterinary spinal manipulation. This gentle, specialized, manual skill, involves the application of a quick, low-force maneuver that is directed to a specific area of a joint at a specific angle. A certified animal chiropractor understands these joint angles intimately and can best asses if an animal can benefit from chiropractic care, and, is the only professional who is qualified to adjust your pet.”
But no evidence!
By now I was desperate. My last hope was the ‘American Veterinary Chiropractic Association’. All I found there, however, was this: the “American Veterinary Chiropractic Association (AVCA) is a professional membership group promoting animal chiropractic to professionals and the public, and acting as the certifying agency for doctors who have undergone post-graduate animal chiropractic training.”
Not a jot of evidence!
The assumption that animal chiropractic is effective seems to rely on the evidence from human studies…
… and we all know how solid that body of evidence is!
My conclusion from all this: chiropractors treating animals and those treating humans have one important characteristic in common.
THEY HAPPILY PROMOTE BOGUS TREATMENTS.
How often have I pointed out that most studies of chiropractic (and other alternative therapies) are overtly unethical because they fail to report adverse events? And if you think this is merely my opinion, you are mistaken. This new analysis by a team of chiropractors aimed to describe the extent of adverse events reporting in published RCTs of Spinal Manipulative Therapy (SMT), and to determine whether the quality of reporting has improved since publication of the 2010 Consolidated Standards Of Reporting Trials (CONSORT) statement.
The Physiotherapy Evidence Database and the Cochrane Central Register of Controlled Trials were searched for RCTs involving SMT. Domains of interest included classifications of adverse events, completeness of adverse events reporting, nomenclature used to describe the events, methodological quality of the study, and details of the publishing journal. Data were analysed using descriptive statistics. Frequencies and proportions of trials reporting on each of the specified domains above were calculated. Differences in proportions between pre- and post-CONSORT trials were calculated with 95% confidence intervals using standard methods, and statistical comparisons were analysed using tests for equality of proportions with continuity correction.
Of 7,398 records identified in the electronic searches, 368 articles were eligible for inclusion in this review. Adverse events were reported in 140 (38.0%) articles. There was a significant increase in the reporting of adverse events post-CONSORT (p=.001). There were two major adverse events reported (0.3%). Only 22 articles (15.7%) reported on adverse events in the abstract. There were no differences in reporting of adverse events post-CONSORT for any of the chosen parameters.
The authors concluded that although there has been an increase in reporting adverse events since the introduction of the 2010 CONSORT guidelines, the current level should be seen as inadequate and unacceptable. We recommend that authors adhere to the CONSORT statement when reporting adverse events associated with RCTs that involve SMT.
We conducted a very similar analysis back in 2012. Specifically, we evaluated all 60 RCTs of chiropractic SMT published between 2000 and 2011 and found that 29 of them did not mention adverse effects at all. Sixteen RCTs reported that no adverse effects had occurred (which I find hard to believe since reliable data show that about 50% of patients experience adverse effects after consulting a chiropractor). Complete information on incidence, severity, duration, frequency and method of reporting of adverse effects was included in only one RCT. Conflicts of interests were not mentioned by the majority of authors. Our conclusion was that adverse effects are poorly reported in recent RCTs of chiropractic manipulations.
The new paper suggests that the situation has improved a little, yet it is still wholly unacceptable. To conduct a clinical trial and fail to mention adverse effects is not, as the authors of the new article suggest, against current guidelines; it is a clear and flagrant violation of medical ethics. I blame the authors of such papers, the reviewers and the journal editors for behaving dishonourably and urge them to get their act together.
The effects of such non-reporting are obvious: anyone looking at the evidence (for instance via systematic reviews) will get a false-positive impression of the safety of SMT. Consequently, chiropractors are able to claim that very few adverse effects have been reported in the literature, therefore our hallmark therapy SMT is demonstrably safe. Those who claim otherwise are quite simply alarmist.
A recent post discussed a ‘STATE OF THE ART REVIEW’ from the BMJ. When I wrote it, I did not know that there was more to come. It seems that the BMJ is planning an entire series on the state of the art of BS! The new paper certainly looks like it:
Headaches, including primary headaches such as migraine and tension-type headache, are a common clinical problem. Complementary and integrative medicine (CIM), formerly known as complementary and alternative medicine (CAM), uses evidence informed modalities to assist in the health and healing of patients. CIM commonly includes the use of nutrition, movement practices, manual therapy, traditional Chinese medicine, and mind-body strategies. This review summarizes the literature on the use of CIM for primary headache and is based on five meta-analyses, seven systematic reviews, and 34 randomized controlled trials (RCTs). The overall quality of the evidence for CIM in headache management is generally low and occasionally moderate. Available evidence suggests that traditional Chinese medicine including acupuncture, massage, yoga, biofeedback, and meditation have a positive effect on migraine and tension headaches. Spinal manipulation, chiropractic care, some supplements and botanicals, diet alteration, and hydrotherapy may also be beneficial in migraine headache. CIM has not been studied or it is not effective for cluster headache. Further research is needed to determine the most effective role for CIM in patients with headache.
My BS-detector struggled with the following statements:
- integrative medicine (CIM), formerly known as complementary and alternative medicine (CAM) – the fact that CIM is a nonsensical new term has been already mentioned in the previous post;
- evidence informed modalities – another new term! evidence-BASED would be too much? because it would require using standards that do not apply to CIM? double standards promoted by the BMJ, what next?
- CIM commonly includes the use of nutrition – yes, so does any healthcare or indeed life!
- the overall quality of the evidence for CIM in headache management is generally low and occasionally moderate – in this case, no conclusions should be drawn from it (see below);
- evidence suggests that traditional Chinese medicine including acupuncture, massage, yoga, biofeedback, and meditation have a positive effect on migraine and tension headaches – no, it doesn’t (see above)!
- further research is needed to determine the most effective role for CIM in patients with headache – this sentence does not even make the slightest sense to me; have the reviewers of this article been asleep?
And this is just the abstract!
The full text provides enough BS to fertilise many acres of farmland!
Moreover, the article is badly researched, cherry-picked, poorly constructed, devoid of critical input, and poorly written. Is there anything good about it? You tell me – I did not find much!
My BS-detector finally broke when we came to the conclusions:
The use of CIM therapies has the potential to empower patients and help them take an active role in their care. Many CIM modalities, including mind-body therapies, are both self selected and self administered after an education period. This, coupled with patients’ increased desire to incorporate integrative medicine, should prompt healthcare providers to consider and discuss its inclusion in the overall management strategy. Low to moderate quality evidence exists for the effectiveness of some CIM therapies in the management of primary headache. The evidence for and use of CIM is continuously changing so healthcare professionals should direct their patients to reliable and updated resources, such as NCCIH.
WHAT IS HAPPENING TO THE BMJ?
IT USED TO BE A GOOD JOURNAL!
The website of BMJ Clinical Evidence seems to be popular with fans of alternative medicine (FAMs). That sounds like good news: it’s an excellent source, and one can learn a lot about EBM when studying it. But there is a problem: FAMs don’t seem to really study it (alternatively they do not have the power of comprehension to understand the data); they merely pounce on this figure and cite it endlessly:
They interpret it to mean that only 11% of what conventional clinicians do is based on sound evidence. This is water on their mills, because now they feel able to claim:
THE MAJORITY OF WHAT CONVENTIONAL CLINICIANS DO IS NOT EVIDENCE-BASED. SO, WHY DO SO-CALLED RATIONAL THINKERS EXPECT ALTERNATIVE THERAPIES TO BE EVIDENCE-BASED? IF WE NEEDED PROOF THAT THEY ARE HYPOCRITES, HERE IT IS!!!
The question is: are these FAMs correct?
The answer is: no!
They are merely using a logical fallacy (tu quoque); what is worse, they use it based on misunderstanding the actual data summarised in the above figure.
Let’s look at this in a little more detail.
The first thing we need to understand the methodologies used by ‘Clinical Evidence’ and what the different categories in the graph mean. Here is the explanation:
So, arguably the top three categories amounting to 42% signify some evidential support (if we decided to be more rigorous and merely included the two top categories, we would still arrive at 35%). This is not great, but we must remember two things here:
- EBM is fairly new;
- lots of people are working hard to improve the evidence base of medicine so that, in future, these figures will be better (by contrast, in alternative medicine, no similar progress is noticeable).
The second thing that strikes me is that, in alternative medicine, these figures would surely be much, much worse. I am not aware of reliable estimates, but I guess that the percentages might be one dimension smaller.
The third thing to mention is that the figures do not cover the entire spectrum of treatments available today but are based on ~ 3000 selected therapies. It is unclear how they were chosen, presumably the choice is pragmatic and based on the information available. If an up-to date systematic review has been published and provided the necessary information, the therapy was included. This means that the figures include not just mainstream but also plenty of alternative treatments (to the best of my knowledge ‘Clinical Evidence’ makes no distinction between the two). It is thus nonsensical to claim that the data highlight the weakness of the evidence in conventional medicine. It is even possible that the figures would be better, if alternative treatments had been excluded (I estimate that around 2 000 systematic reviews of alternative therapies have been published [I am the author of ~400 of them!]).
The fourth and possibly the most important thing to mention is that the percentage figures in the graph are certainly NOT a reflection of what percentage of treatments used in routine care are based on good evidence. In conventional practice, clinicians would, of course, select where possible those treatments with the best evidence base, while leaving the less well documented ones aside. In other words, they will use the ones in the two top categories much more frequently than those from the other categories.
At this stage, I hear some FAMs say: how does he know that?
Because several studies have been published that investigated this issue in some detail. They have monitored what percentage of interventions used by conventional clinicians in their daily practice are based on good evidence. In 2004, I reviewed these studies; here is the crucial passage from my paper:
“The most conclusive answer comes from a UK survey by Gill et al who retrospectively reviewed 122 consecutive general practice consultations. They found that 81% of the prescribed treatments were based on evidence and 30% were based on randomised controlled trials (RCTs). A similar study conducted in a UK university hospital outpatient department of general medicine arrived at comparable figures; 82% of the interventions were based on evidence, 53% on RCTs. Other relevant data originate from abroad. In Sweden, 84% of internal medicine interventions were based on evidence and 50% on RCTs. In Spain these percentages were 55 and 38%, respectively. Imrie and Ramey pooled a total of 15 studies across all medical disciplines, and found that, on average, 76% of medical treatments are supported by some form of compelling evidence — the lowest was that mentioned above (55%),6 and the highest (97%) was achieved in anaesthesia in Britain. Collectively these data suggest that, in terms of evidence-base, general practice is much better than its reputation.”
My conclusions from all this:
FAMs should study the BMJ Clinical Evidence more thoroughly. If they did, they might comprehend that the claims they tend to make about the data shown there are, in fact, bogus. In addition, they might even learn a thing or two about EBM which might eventually improve the quality of the debate.
The new guidelines by the American College of Physicians entitled ‘Noninvasive Treatments for Acute, Subacute, and Chronic Low Back Pain: A Clinical Practice Guideline From the American College of Physicians’ have already been the subject of the previous post. Today, I want to have a closer look at a small section of these guidelines which, I think, is crucial. It is entitled ‘HARMS OF NONPHARMACOLOGIC THERAPIES’. I have taken the liberty of copying it below:
“Evidence on adverse events from the included RCTs and systematic reviews was limited, and the quality of evidence for all available harms data is low. Harms were poorly reported (if they were reported at all) for most of the interventions.
Low-quality evidence showed no reported harms or serious adverse events associated with tai chi, psychological interventions, multidisciplinary rehabilitation, ultrasound, acupuncture, lumbar support, or traction (9,95,150,170–174). Low-quality evidence showed that when harms were reported for exercise, they were often related to muscle soreness and increased pain, and no serious harms were reported. All reported harms associated with yoga were mild to moderate (119). Low-quality evidence showed that none of the RCTs reported any serious adverse events with massage, although 2 RCTs reported soreness during or after massage therapy (175,176). Adverse events associated with spinal manipulation included muscle soreness or transient increases in pain (134). There were few adverse events reported and no clear differences between MCE and controls. Transcutaneous electrical nerve stimulation was associated with an increased risk for skin site reaction but not serious adverse events (177). Two RCTs (178,179) showed an increased risk for skin flushing with heat compared with no heat or placebo, and no serious adverse events were reported. There were no data on cold therapy. Evidence was insufficient to determine harms of electrical muscle stimulation, LLLT, percutaneous electrical nerve stimulation, interferential therapy, short-wave diathermy, and taping.”
The first thing that strikes me is the brevity of the section. Surely, guidelines of this nature must include a full discussion of the risks of the treatments in question!
The second thing that is noteworthy is the fact that the authors confirm the fact I have been banging on about for years: clinical trials of alternative therapies far too often fail to mention adverse effects. I have often pointed out that the failure to report adverse effects in clinical trials is an unacceptable violation of medical ethics. By contrast, the guideline authors seem not to feel strongly about this omission.
The third thing that is noteworthy is that the guidelines evaluate the harms of the treatments purely on the basis of the adverse effects reported in the clinical trials and systematic reviews included in their efficacy assessments. This is nonsensical for at least two reasons:
- The guideline authors themselves are aware that the trials very often fail to mention adverse effects.
- For any assessment of harm, one has to go far beyond the evidence of clinical trials, because trials tend to be too small to pick up rare adverse effects, and because they are always conducted under optimally controlled conditions where adverse effects are less likely to occur than in real life.
Together, these features of the assessment of harms explain why the guideline authors arrive at conclusions which are oddly misguided; I would even feel that they resemble a white-wash. Here are two of the most overt misjudgements:
- no harms associated with acupuncture,
- only trivial harm associated with spinal manipulations.
The best evidence we have today shows that acupuncture leads to mild adverse effects in about 10% of all cases and is also associated with very severe complications (e.g. pneumothorax, cardiac tamponade, infections, deaths) in an unknown number of patients. More details can be found for instance here, here, here and here.
And the best evidence available shows that spinal manipulation leads to moderately severe adverse effects in ~50% of all cases. In addition, we know of hundreds of cases of very severe complications resulting in stroke, permanent neurological deficits or deaths. More details can be found for instance here, here, here and here.
In the introduction, I stated that this small section of the guidelines is crucial.
The reason is simple: any responsible therapeutic decision has to be based not just on the efficacy of the treatment in question but on its risk/benefit balance. The evidence shows that the risks of some alternative therapies can be considerable, a fact that is almost totally neglected in the guidelines. Therefore, the recommendations of the new guidelines by the American College of Physicians entitled ‘Noninvasive Treatments for Acute, Subacute, and Chronic Low Back Pain: A Clinical Practice Guideline From the American College of Physicians’ are in several aspects not entirely correct and need to be reconsidered.
Concerned about the new ACP guidelines on ‘Noninvasive Treatments for Acute, Subacute, and Chronic Low Back Pain: A Clinical Practice Guideline From the American College of Physicians’, Andrea MacGregor asked me to publish her ‘open letter’:
I am a student about to graduate and register as a massage therapist in Canada, and I am writing to express my concern with your recommendation of the use of acupuncture in your new guideline for low-back pain management.
Leading medical and health research experts from around the world, including many who are highly familiar with the use of complementary and alternative therapies, have contributed to a highly informed commentary (attached) assembled by the Friends of Science in Medicine association (Aus.), which supports a strong conclusion that acupuncture is not effective for any specific condition, and that the evidence for it being an effective intervention for low-back pain is not convincing. Another review of acupuncture by FSM concluding that there is a lack of evidence of a therapeutic effect has been endorsed by the Royal Australian and New Zealand College of Obstetricians and Gynaecologists. Respected American medical science writers also maintain that claims of acupuncture’s efficacy are not science-based (examples here and here).
Additionally, previous acupuncture recommendations are being reconsidered by prominent institutions in other parts of the world. The National Institute for Health and Care Excellence guideline for NHS patients in the United Kingdom now recommends against the use of acupuncture for low-back pain, following a high-quality review that critically examined the existing evidence regarding the use of acupuncture and found it to be no more effective than a placebo. The Toronto Hospital for Sick Children has also recently removed references on their website that suggested the efficacy of acupuncture in managing specific chronic pain conditions. The World Health Organization has done the same, no longer suggesting that acupuncture is effective for low-back pain and sciatica.
As someone about to enter a field that is frequently associated with, or considered a part of, complementary healthcare, I know how tempting it can be for us, as professionals and as researchers, to exaggerate claims of efficacy and pin some very high hopes on “new possibilities” in physical therapies.
I also know first-hand how misguided and overblown some of these claims and hopes can be. Many of my own peers and instructors are proponents of acupuncture, and it is common for Canadian massage therapists to become licensed acupuncturists (a similar connection between massage and acupuncture communities, of course, also exists in the United States). I have often seen my own mentors and comrades pushing for the use of acupuncture treatments for many chronic and serious conditions for which there is no basis of evidence at all of acupuncture’s efficacy, including systemic, neurological, and developmental conditions. When questioned, they will usually refer to authorities perceived as “legitimate”, including the American College of Physicians, to say that claims of acupuncture “working” are backed by experts— whether their claims are even pain-related or not.
We see a similar situation with advertisers and media using the guise of “expert-backed” legitimization to recommend acupuncture in misleading ways, often to vulnerable people who could be making better-informed and more effective treatment and management choices for their conditions. Many of these advertising and media entities specifically mention the American College of Physicians as lending credence to their claims, sometimes somewhat out of context.
As someone with a chronic neurological disorder, I find it troubling to see untrue or exaggerated claims of benefit for incurable or serious conditions when we could be focusing on more accurate ideas and having more honest, realistic discussions of our options. This is also important when it comes to deciding how to best allocate our limited health funding resources. Quite a lot of our insurance and out-of-pocket funds are spent on alternative therapies, and it’s important to see things going to use in a way that’s proportionate and appropriate to the evidence we have.
I hope that you will reconsider your recommendation of a practice that is simply not supported by the majority of the research evidence that exists to date. Patients with complex conditions, including low-back pain, deserve accurate and realistic information regarding their treatment options, especially from such trusted and reputable sources as the American College of Physicians. Thank you for your time and attention.
Below are informed conclusions on acupuncture from 28 international experts from 10 countries, including Australia, Canada, Denmark, France, Greece, Italy, Netherlands, New Zealand, United Kingdom and United States of America.
– Sir Richard John Roberts, English biochemist and molecular biologist, 1993 Nobel Prize in Physiology or Medicine – Prof Nikolai Bogduk AM, Emeritus Professor of Pain Medicine, University of Newcastle, Australia – Prof Timothy Caulfield, LLM, FRSC, FCAHS, Canada Research Chair in Health Law & Policy, Trudeau Fellow & Professor, Faculty of Law and School of Public Health, Research Director, Health Law Institute, University of Alberta, Canada – Prof. Assimakis Kanellopoulos, PhD MSc.Prof. Applied Physiotherapy, TEI Lamia, Greece – Prof Lesley Campbell AM, MBBS, FRACP FRCP(UK), Senior Endocrinologist, Diabetes Services, St Vincent’s Hospital, Professor of Medicine, UNSW. Laboratory Co-Head, Clinical Diabetes, Appetite and Metabolism, Garvan Institute of Medical Research, SVH, NSW, Australia – Emeritus Prof Donald M. Marcus, MD, Professor of Medicine and Immunology, Emeritus, Baylor College of Medicine, Houston, United States of America (USA) – Dr Michael Vagg, MBBS(Hons) FAFRM(RACP) FFPMANZCA, Consultant in Rehabilitation and Pain Medicine, Barwon Health. Clinical Senior Lecturer, Deakin University School of Medicine. Fellow, Institute for Science in Medicine, Victoria, Australia – Prof Bernie Garrett, The University of British Columbia, School of Nursing, Vancouver, BC, Canada – A/Prof David H Gorski, MD PhD FACS, surgical oncologist, Barbara Ann Karmanos Cancer Institute, Team Leader, Breast Cancer Multidisciplinary Team, Co-Leader, Breast Cancer Biology Program, Co-Director, Alexander J Walt Comprehensive Breast Center, Chief, Section of Breast Surgery, A/Professor, Surgery, Wayne State University School of Medicine, , and Professor (Honorary) Hanoi Medical University, USA – Prof Carl Bartecchi, MD, MACP, Distinguished Professor of Clinical Medicine, University of Colorado School of Medicine, USA – Prof David Colquhoun, FRS, Dept of Pharmacology, UCL United Kingdom (UK) – Prof Edzard Ernst, MD PhD FMEdSci FSB FRCP FRCP(Edin), Complementary Medicine, Peninsula Medical School, UK – Prof Marcello Costa FAAS. Matthew Flinders Distinguished Professor and Professor of Neurophysiology (2012), Professor of Neurophysiology, Flinders University, Australia. – Emeritus Prof Alastair H MacLennan AO MB CHb MD FRCOG FRANZCOG. The Robinson Research Institute, The University of Adelaide, Australia – Prof John M Dwyer AO PhD FRACP FRCPI Doc Uni(Hon) ACU. Emeritus Professor of Medicine, University of New South Wales. Founder of the Australian Health Care Reform Alliance. Clinical consultant to the NSW Government’s Inter-Agency committee on Health Care Fraud, Australia – A/Prof Steven M Novella, clinical neurologist Yale University School of Medicine, Connecticut, USA – Prof William M London, EdD, MPH, Department of Public Health, California State University, Los Angeles, USA – Dr Steven Barrett, MD, retired psychiatrist, author, co-founder of the National Council Against Health Fraud (NCAHF), USA – Prof. Steven L. Salzberg, Ph.D., Bloomberg Distinguished Professor of Biomedical Engineering, Computer Science, and Biostatistics, Johns Hopkins University School of Medicine, USA – Prof Christopher C French, Head of the Anomalistic Psychology Research Unit, Department of Psychology, Goldsmiths, University of London, UK – Dr Cees Renckens MD PhD, gynaecologist, past president of the Dutch Society against Quackery, Netherlands – Dr Alain Braillon. MD PhD. Senior consultant. University hospital, France – Dr John McLennan, MBBS FRACP, Paediatrician, Vic – Prof Shaun Holt, BPharm(hons), MBChB(hons), Medical Researcher, Victoria University of Wellington, New Zealand – Dr Lloyd B Oppel, MD, MHSc, Canada – Professor Asbjørn Hróbjartsson, Centre for Evidence-Based Medicine, University of Southern Denmark & Odense University Hospital, Denmark – Prof Maurizio Pandolfi MD, Florence, former Professor of Clinical Ophthalmology, The University of Lund, Sweden, Italy – Professor Mark Baker, Centre for Clinical Practice Director, National Institute for Health and Care Excellence (NICE), UK
According to Sir Richard: “From everything I have read about acupuncture I have to conclude that the evidence for efficacy is just not there. I can believe it has a very strong and effective placebo effect, but if it really worked as advertised why are the numbers of successful outcomes so small when compared to treatments such as drugs that really do work. As a scientist, who likes to see proper experiments carried out so that the results can be judged with a rational analysis, the experiments I have read about just don’t meet even a low bar of acceptability. I certainly do not believe it should be endorsed as an effective treatment by any professional scientific or medical body that values its reputation.”
According to Professor Bogduk: “Although studies have shown that acupuncture “works”, the definition of “works” is generous. Most studies show minimal to no effect greater than that of sham therapy. Needles do not need to be placed at specific points; so, learning about meridians is not required. Effectiveness is marginally greater in those patients who believe in acupuncture or expect it to work. However, no studies have shown that acupuncture stops pain, while also restoring normal function and removing the need for other health care.”
According to Professor Caulfield: “In popular culture, acupuncture is often portrayed as being effective for a range of conditions. It is held up as an alternative medicine success story. In fact, the relevant data are, at best, equivocal. The most rigorous studies, such as those that are well controlled and use sham comparators, have found that in most situations acupuncture is little better than placebo. More importantly, the supernatural foundations of the practice – that illness can be attributed to an imbalance in a life force energy – has absolutely no scientific basis. Given this reality, public representations of acupuncture that present it as science-based and effective can be deeply misleading. Policies are needed to counter this noise, including, inter alia, the more aggressive deployment of truth-in-advertising regulations, the enforcement of a conceptually consistent science-based informed consent standard, and the oversight of healthcare professionals by the relevant regulatory entities.”
According to Professor Kanellopoulos: “According to the systematic reviews in the field of acupuncture, the benefits of the method, if any, are nothing more than a temporary placebo effect. From a scientific point of view, acupuncture is based on a theory, which has nothing to do with modern physiology and medicine. From a researcher’s point of view, any presented acupuncture effectiveness is due to methodological errors, data manipulation, statistical artefacts and (purposely?) poorly designed clinical trials in general. Finally, regarding the patient, any symptom’s relief comes from despair and post hoc fallacy. After decades of research and over 3000 clinical trials, any continuation of practicing, advertising, and research in the field of acupuncture is a waste of resources and puts the patients at risk, raising ethical issues for both science and society.”
According to Professor Campbell: “Acupuncture holds great theatrical appeal through its dramatic and historical aspects, particularly to those who feel that conventional medicine has failed to offer pain relief or sufficient improvement in symptoms. However an extensive body of data now exists from rigorous approaches to testing the validity of its claims of benefit actually related to the placement of the needles and not to placebo effect. For example, most recently the beneficial effect achieved in relieving fatigue in Parkinsons Disease (and there was one) was identical in a randomised controlled trial to that of placebo.”
According to Professor Donald M. Marcus: “When trials of acupuncture for relief of pain of osteoarthritis of the knee or back pain include a sham acupuncture control, there is no clinically relevant difference in efficacy between the conventional and sham procedures. A number of sham procedures have been used, including toothpicks in a plastic guide tube in a study of back pain. It’s evident that relief of pain, and probably other complaints, by acupuncture is mediated by a placebo mechanism. Since there is no scientific evidence supporting its efficacy, medical insurance should not pay for acupuncture treatments. Moreover, it is unethical to deceive patients by providing a placebo treatment without disclosure.”
According to pain specialist Dr Vagg: “Due to the lack of a scientifically plausible mechanism, and the poor quality of the bulk of the research concerning acupuncture in its many and varied forms, no credible body of pain medicine researchers or clinicians has endorsed any type of acupuncture as a recommended treatment for any identifiable group of patients with persistent pain. Moreover, there is no reason to suppose that further research of high quality will change this conclusion, given that high-quality, randomized and double-blinded studies have uniformly shown that any form of acupuncture is indistinguishable from placebo, making further research unwarranted.”
According to Professor Garrett: “Current levels of evidence on acupuncture as a therapeutic intervention for any condition is very poor. Most studies reported are of very poor quality and are not reliable. Unfortunately, there is a strong element of propaganda in the dissemination of support for acupuncture in China, as it is a part of the Traditional Chinese Medicine supported by the government there. As such, much research has been demonstrated to involve data fabrication and extreme levels of confirmation bias. There are also strong ethical concerns about research involving acupuncture in China for anesthesia or other conditions where there is no established clinical theoretical basis for its use, and far better established therapeutics are available. Overall the current state of evidence on acupuncture is that the effectiveness of acupuncture as a treatment of any health condition remains unproven, and the only good quality trials have identified it has no better outcomes than placebo. Therefore, any claims of efficacy made against specific medical conditions are deceptive.”
According to Professor Gorski: “Acupuncture seems to garner more belief because it seems more plausible. The reason is that, unlike many other alternative therapies, acupuncture actually involves a physical act, namely inserting needles into the skin. However, it is also the case that the more acupuncture has been studied, the more it has become clear that it is, as David Colquhoun and Steve Novella put it, nothing more than a theatrical placebo. Indeed, as acupuncture is more rigorously studied in randomized clinical trials with proper controls and proper blinding, the more its seeming effects disappear, so that it becomes indistinguishable from placebo. Nor is it without risk, either. Recommending acupuncture to treat any condition is, from an ethical and scientific view, indefensible.”
According to Professor Bartecchi: “Acupuncture has no medical value other than that of a placebo. Acupuncture as viewed by many of us in academic medicine is merely an elaborate, theatrical placebo, a pre-scientific superstition which lacks a plausible mechanism. It really fits the bill as an alternative medicine hoax.”
According to Professor Colquhoun: “After over 3000 trials, some of them very well designed, there is still argument about the effectiveness of acupuncture. If that were the case for a new drug, it would long since have been abandoned. The literature suggests that acupuncture has only a small and variable placebo effect: too small to be of noticeable benefit to patients. Most of its apparent effects result from a statistical artefact, regression to the mean. The continued use of acupuncture probably arises from the lack of effective treatments for conditions like non-specific low back pain. That cannot be justified, Neither is it worth spending yet more money on further research. The research has been done and it failed to produce convincing evidence.”
According to Professor Ernst: “The current evidence on acupuncture is mixed. Many trials are less than rigorous and thus not reliable. Much of the research comes from China where data fabrication has been disclosed to be at epidemic levels; it would therefore be a mistake to rely on studies from China which almost invariably report positive results. If we account for such caveats and critically review the literature, we arrive at the following conclusions: – Acupuncture is clearly not free of risks, some of which are serious; – The effectiveness of acupuncture as a treatment of any condition remains unproven, and – The current research in this area is mostly pseudo-research aimed at promoting rather than testing acupuncture”.
According to Professor Costa: “Acupuncture as a part of Traditional Chinese Medicine is not based on science simply because, as for all pre-scientific medicines, whether Greco-Roman-European, Indian or any other, none are founded on any evidence. As a Neuroscientist, I teach medical and non medical students the very foundations of how the nervous system works and how sensory stimulation affects the brain. There simply is no evidence that twigging the skin with needles or, for that matter with toothpicks, does any more than create an expectation to feel better. This is the well-known placebo effect. Selling placebos under the disguise of medicine is totally unethical.”
According to Professor MacLennan: “Acupuncture is elaborate quackery and like many placebos sold by those without responsibility for or knowledge of the wide range of health disorders and disease it can be dangerous. Dangerous because acupuncture may delay correct diagnosis and therapy, dangerous because it may delay possible evidence-based therapies and allow progression of disorders present and dangerous because it sucks limited health resources from the community. Acupuncturists derive their income from elaborate subterfuge, taking advantage of the gullible unwell who are desperate, uneducated and seek a magic cure. If there is a placebo effect it is usually temporary, and eventually disappointment from lack of long term effect may lead to secondary depression in the patient. According to Professor Dwyer: “Modern understanding of human anatomy and the distribution and function of the components of the human nervous system make a nonsense of theories that suggest there are invisible meridians criss-crossing the body wherein there are trigger spots which, when stimulated, can produce an array of benefits remote from that site. Scientists however, while dismissing the prescientific explanations offered by traditional Chinese medicine, have sought other reasons why acupuncture might provide clinical benefits particularly the relief of pain. Numerous theories have been addressed by numerous studies with many being conducted using disciplined scientific methods. The conclusions leave us with no doubt that acupuncture provides the scenario for a superb theatrical placebo; no more.”
According to Dr Novella: “Pain is a big problem. If you read about pain management centers, you might think it had been solved. It has not. And when no effective treatment exists for a medical problem, it leads to a tendency to clutch at straws. Research has shown that acupuncture is little more than such a straw. It is clear from meta-analyses that results of acupuncture trials are variable and inconsistent, even for single conditions. After thousands of trials of acupuncture and hundreds of systematic reviews, arguments continue unabated. In 2011, Pain published an editorial that summed up the present situation well.”
According to Professor London & Dr Barrett: “The optimistic article by Vickers et al did not consider an important point. Research studies may not reflect what takes place in most acupuncturist offices. Most acupuncturists are graduates of “oriental medical schools,” where they learn about 5element theory, “energy” flow through meridians, and other fanciful traditional Chinese medicine (TCM) concepts that do not correspond with scientific knowledge of anatomy, physiology, or pathology. Practitioners of TCM typically rely on inappropriate diagnostic procedures (pulse and tongue diagnosis) and prescribe herbal mixtures that have not been sufficiently studied. Diagnoses based on TCM such as “Qi stagnation,” “blood stagnation,” “kidney Qi deficiency,” and “yin deficiency” may not jeopardize patients who are treated in an academic setting, where they have received a medical diagnosed before entering the study. But what about people with conditions that TCM-trained acupuncturists are not qualified or inclined to diagnose? Real-world evaluations of acupuncture should also consider the cost of unnecessary treatment.”
According to Professor Salzberg: “Acupuncture is a pre-scientific practice that persists only because of relentless and often very clever marketing by its proponents. The claimed mechanisms by which acupuncture works are clearly and obviously false: modern physiology, neurology, cell biology, and other scientific disciplines explain how pain signals are transmitted in the body, and none of them support the supposed “qi” or energy fields flowing along “meridians,” as acupuncturists describe them. Hundreds of scientific studies have shown that acupuncture doesn’t work for any medical condition. Acupuncture proponents ignore the evidence and persist, primarily because they profit from their practices. There are also documented risks of complications from acupuncture, ranging from infections to punctured lungs. For these and other reasons, recommending acupuncture for any patient is simply unethical. Acupuncturists make profits by putting patients at risk.”
According to Professor French: “Acupuncture has been extensively evaluated with respect to its possible therapeutic effectiveness for a wide range of disorders. The overall conclusion from meta-analyses of such studies is that any beneficial effects reported are small in terms of effect size and probably best accounted for in terms of statistical artefacts and placebo effects, etc. In general, the higher the quality of the study, the less likely are any beneficial effects to be reported. In light of this, it would be unwise and unethical to recommend acupuncture as the treatment of choice for any condition.”
According to Dr Renckens: “In 1683 the Dutch physician Willem ten Rhijne published the first book in the western world in which the word ‘acupuncture’ was mentioned, which referred to – as the Dutch title of the book was – ‘The Chinese and Japanese way of curing all diseases and especially the podagra by burning moxa and stabbing the Golden Needle’. This exotic treatment did not gain any popularity in the Netherlands and was mainly ridiculed. This heavenly situation remained unchanged until Nixon’s trip to China (1972) and the ‘successful’ acupuncture-treatment of the journalist James Reston of the New York Times. His story in that influential newspaper caused worldwide interest in acupunctures possible benefits. Also in the Netherlands and as early as 1989 a series of systematic reviews on the efficacy of acupuncture in a number of diseases was published in the Huisarts & Wetenschap, a journal of GP’s in the Dutch language (Ter Riet et al. H&W,1989;32:308-312).Their final conclusion was: ‘the main achievement of Chinese acupuncture is to have discovered a number of spots on the human body into which needles can be safely inserted’. The huge amount of scientific research into acupuncture has since been unable to undermine this right conclusion.”
According to Dr Braillon: “No discrimination! The US Federal Trade Commission announced that homeopathic drugs should “be held to the same truthin-advertising standards as other products claiming health benefits”; very soon, homeopathic products will include statements indicating: “There is no scientific evidence backing homeopathic health claims” and “Homeopathic claims are based only on theories from the 1700s that are not accepted by modern medical experts.” In Australia, the Royal Australian College of General Practitioners formally recommended GPs to ban homeopathic products from their prescriptions and pharmacists to ban them from their shelves. The same should be required for acupuncture.”
According to Dr McLennon: “Despite claims for effectiveness, there have been very few studies of acupuncture on children that have confirmed significant benefits. Conditions such as headache, abdominal pain, bed wetting and fibromyalgia and behaviour problems such as ADHD have been investigated. More trials with better structure have universally been recommended. A double blinded trial on the treatment of headaches with laser acupuncture illustrates the problems. The number of patients was quite small (21 in each arm), the diagnoses were reasonable medically but required rediagnosis to fit Traditional Chinese Medicine criteria and treatments were individualised based on these diagnoses. It was not made clear whether the patients were completely blinded i.e. unaware they received active treatment or placebo. Until blinding can be guaranteed, trials of acupuncture will remain inconclusive.”
According to Professor Holt: “Unlike some alternative therapies, acupuncture has been extensively studied for many medical conditions and a summary would be that the higher the quality of the study, the less likely it is that a benefit other than a placebo effect is found. Studies have shown conclusively that a key aspect of acupuncture, putting needles into energy lines for medical benefits, is not true, and the same effect is elicited wherever the needles are placed. Acupuncture is not a science-based practice, can cause side effects and is not recommended for any medical condition.”
According to Dr Oppel: “It is extremely concerning that there remains no plausible rationale for a mechanism of action of acupuncture. It is noteworthy that different schools of acupuncture offer contradictory patterns of treatment. It should not go without notice that acupuncture has been so well-researched that there are hundreds , if not thousands, of clinical trials now available Unfortunately, although there is no compelling evidence of effectiveness for any of the myriad of conditions where acupuncture is claimed to be of benefit, poor quality unreplicated trials continue to be put forward by proponents as proof of acupuncture’s effectiveness. Critical thinkers will also take note that while the large majority of acupuncture trials are positive, the vast majority of properly controlled trials are not. We are in a situation now where we have excellent evidence that acupuncture is not effective.”
According to Professor Hróbjartsson: “While there have been many trials done with acupuncture, most of them are small pilot studies and large scale high quality trials are rare. Some studies have reported measurable effects, but the mechanism is not yet understood, the size of the effect is small and it is possible that a large part of the effect or all of the effect is placebo. It is obvious that you would see a physiological effect when you stick a needle into your body, the question is whether that has a measurable clinical effect. There is insufficient evidence to say that electro acupuncture is any more or any less effective.”
According to Professor Pandolfi: “With a rationale completely disconnected from the basic principles of science acupuncture cannot be considered as belonging to modern evidence–based medicine.”
According to Professor Baker: “Millions of people are affected every year by these often debilitating and distressing conditions. For most their symptoms improve in days or weeks. However for some, the pain can be distressing and persist for a long time. Regrettably there is a lack of convincing evidence of effectiveness for some widely used treatments. For example acupuncture is no longer recommended for managing low back pain with or without sciatica. This is because there is not enough evidence to show that it is more effective than sham treatment.”
You might think that the question asked in the title of this post is a bit impertinent. Let’s see whether you change your mind after reading on.
“Come along for a ten minute taster sessions and experience the Bowen Technique.
It is appropriate for a wide range of acute and chronic conditions, including back pain, sciatica, neck, shoulder and knee problems, arthritis, asthma, migraine, sports injuries and stress. Ten-minute taster sessions will be offered so that you can experience the therapy first hand. Many find their aches and pains melt away!”
It is with these exact words that the Royal College of Nursing advertises a session on Bowen Technique to be held during their major conference on Saturday 13 – Wednesday 17 May 2017, Liverpool Arena and Convention Centre.
You may not have heard of the Bowen Technique, one of the more exotic types of alternative medicine. So, let me fill you in:
According to proponents, it is “a system of subtle and precise mobilizations called “Bowen moves” over muscles, tendons, nerves and fascia. The moves are performed using the thumbs and fingers applying only gentle, non invasive pressure. A treatment consists of a series of specific sequences of moves called procedures, with frequent pauses to allow time for the body to respond.”
Wikipedia explains: “recipients are generally fully clothed. Each session typically involves gentle rolling motions along the muscles, tendons, and fascia. The therapy’s distinctive features are the minimal nature of the physical intervention and pauses incorporated in the treatment. Proponents claim these pauses allow the body to “reset” itself. In 2015 the Australian Government’s Department of Health published the results of a review of alternative therapies that sought to determine if any were suitable for being covered by health insurance; Bowen Technique was one of 17 therapies evaluated for which no clear evidence of effectiveness was found.”
Medline lists just one single trial of Bowen Technique; it is not a clinical trial with patients but a study with healthy volunteers; here is its abstract:
The hamstring muscles are regularly implicated in recurrent injuries, movement dysfunction and low back pain. Links between limited flexibility and development of neuromusculoskeletal symptoms are frequently reported. The Bowen Technique is used to treat many conditions including lack of flexibility. The study set out to investigate the effect of the Bowen Technique on hamstring flexibility over time. An assessor-blind, prospective, randomised controlled trial was performed on 120 asymptomatic volunteers. Participants were randomly allocated into a control group or Bowen group. Three flexibility measurements occurred over one week, using an active knee extension test. The intervention group received a single Bowen treatment. A repeated measures univariate analysis of variance, across both groups for the three time periods, revealed significant within-subject and between-subject differences for the Bowen group. Continuing increases in flexibility levels were observed over one week. No significant change over time was noted for the control group.
So, whichever way we look at it, there is no evidence whatsoever that Bowen Technique is helpful for patients suffering from any condition. This clearly means that therapeutic claims made for it are bogus, and that the way the Royal College of Nursing advertised it is misleading to the point of being unethical. By definition, the promotion of bogus treatments is quackery. Ergo, the Royal College of Nursing is promoting quackery.
If that is so, there is of course another question that needs an answer: Why does the Royal College of Nursing promote quackery?
As I see it, there are several possibilities, for instance:
- They see nothing wrong with the Bowen session.
- They don’t know better.
- They don’t adhere to EBM.
- They don’t care.
- They were asked to run the session by someone with influence.
- They believe that nurses want this sort of thing.
- They think it’s trendy.
I would be fascinated to hear from someone who knows the correct answer.
Regular readers of this blog will have noticed: when homeopathy-fans run out of arguments, they tend to conduct an ‘ad hominem’ attack. They like to do this in several different ways, but one of the most popular version is to shout with indignation: YOU ARE NOT QUALIFIED!!!
The aim of this claim is to brand the opponent as someone who does not know enough about homeopathy to make valid comments about it. As this sort of thing comes up regularly, it is high time to ask: WHO ACTUALLY IS AN EXPERT IN HOMEOPATHY?
This seems to be an easy question to answer, but – come to think of it – it is more complex that one first imagines. Someone could be an expert in homeopathy in more than one way; for instance, one could be an expert:
- in the history of homeopathy,
- in the manufacture of homeopathics,
- in the regulation of homeopathy,
- in the clinical use of homeopathy in human patients,
- in the clinical use of homeopathy in animals,
- in the use of homeopathy in plants (no, I am not joking!),
- in basic research of homeopathy,
- in clinical research of homeopathy.
This blog is almost entirely devoted to clinical research; therefore, we should, for the purpose of this post, narrow down the above question to: WHO IS AN EXPERT IN CLINICAL RESEARCH OF HOMEOPATHY?
I had always assumed to be such an expert – until I was accused of being a swindler and pretender, that is. I have no formal qualifications for practising homeopathy (and never claimed otherwise), and this fact has prompted many homeopathy-fans to claim that I am not qualified to comment on the value of homeopathy. Do they have a point?
Rational thinkers have often pointed out that one does not need such qualifications for practicing homeopathy. In many countries, anyone can be a homeopath, regardless of background. In all the countries I know, one certainly can practise homeopathy, if one is qualified as a doctor. Crucially, do you really need to know how to practice homeopathy for conducting a clinical trial or a systematic review of homeopathy? Homeopaths seem to think so. I fear, however, that they are wrong: you don’t need to be a surgeon, psychiatrist or rheumatologist to organise a trial or conduct a review of these subjects!
Anyway, my research of homeopathy is not valid, homeopaths say, because I lack the formal qualifications to call myself a homeopath. Let me remind them that I have:
- been trained by leading homeopaths,
- practised homeopathy for quite some time,
- headed a team of scientists conducting research into homeopathy,
- conducted several clinical trials of homeopathy,
- published several systematic reviews of homeopathy,
- no conflicts of interest in regards to homeopathy.
However, this does not impress homeopath, I am afraid. They say that my findings and conclusions about their pet therapy cannot be trusted. In their eyes, I am not a competent expert in clinical research of homeopathy. They see me as a fraud and as an impostor. They prefer the real experts of clinical research of homeopathy such as:
- Robert Mathie
- Jos Kleinjen
- Klaus Linde
These three researchers who are fully accepted by homeopaths; not just accepted, loved and admired! They all have published systematic reviews. Intriguingly, their conclusion all contradict my results in one specific aspect: THEY ARE POSITIVE.
I do not doubt their expertise for a minute, yet have always found this most amusing, even hilarious.
Because none of these experts (I know all three personally) is a qualified homeopath, none of them has any training in the practice of homeopathy, none of them has ever practised homeopathy on human patients, none of them has even worked for any length of time as a clinician.
What can we conclude from these insights?
We could, of course, descend to the same level as homeopaths tend to do and conclude that homeopathy-fans are biased, barmy, bonkers, stupid, silly, irrational, deluded, etc. However, I prefer to draw a different and probably more accurate conclusion: according to homeopathy-fans, an expert in clinical research of homeopathy is someone who has published articles that are favourable to their trade. Anyone who fails to do likewise is by definition not competent to issue a reliable verdict about it.
As the data suggesting that homeopathy is effective for improving health is – to put it mildly – less than convincing, a frantic search is currently on amongst homeopaths and their followers to identify a specific condition for which the evidence is stronger than for all conditions pooled into one big analysis. If they could show that it works for just one disease, they could celebrate this finding and henceforth use it for refuting doubters stating that highly diluted homeopathic remedies are pure placebos. One such condition is allergic rhinitis; there have been several trials suggesting that homeopathy might be effective for it, and therefore it is only logical that homeopathy-promoters want to summarise these data in order to silence sceptics once and for all.
A new paper ought to be seen in this vein. It is systematic review by the Mathie group with the stated aim “to evaluate the efficacy and effectiveness of homeopathic intervention in the treatment of seasonal or perennial allergic rhinitis (AR).”
Randomized controlled trials evaluating all forms of homeopathic treatment for AR were included in a systematic review (SR) of studies published up to and including December 2015. Two authors independently screened potential studies, extracted data, and assessed risk of bias. Primary outcomes included symptom improvement and total quality-of-life score. Treatment effect size was quantified as mean difference (continuous data), or by risk ratio (RR) and odds ratio (dichotomous data), with 95% confidence intervals (CI). Meta-analysis was performed after assessing heterogeneity and risk of bias.
Eleven studies were eligible for SR. All trials were placebo-controlled except one. Six trials used the treatment approach known as isopathy, but they were unsuitable for meta-analysis due to problems of heterogeneity and data extraction. The overall standard of methods and reporting was poor: 8/11 trials were assessed as “high risk of bias”; only one trial, on isopathy for seasonal AR, possessed reliable evidence. Three trials of variable quality (all using Galphimia glauca for seasonal AR) were included in the meta-analysis: nasal symptom relief at 2 and 4 weeks (RR = 1.48 [95% CI 1.24-1.77] and 1.27 [95% CI 1.10-1.46], respectively) favoured homeopathy compared with placebo; ocular symptom relief at 2 and 4 weeks also favoured homeopathy (RR = 1.55 [95% CI 1.33-1.80] and 1.37 [95% CI 1.21-1.56], respectively). The single trial with reliable evidence had a small positive treatment effect without statistical significance. A homeopathic and a conventional nasal spray produced equivalent improvements in nasal and ocular symptoms.
The authors concluded that the low or uncertain overall quality of the evidence warrants caution in drawing firm conclusions about intervention effects. Use of either Galphimia glauca or a homeopathic nasal spray may have small beneficial effects on the nasal and ocular symptoms of AR. The efficacy of isopathic treatment of AR is unclear.
Extracts of Galphimia glauca (GG) have been used traditionally in South America for the treatment of allergic conditions, with some reports suggesting effectiveness. A 1997 meta-analysis of 11 clinical trials (most of them of very poor quality) of homeopathic GG suggested this therapy to be effective in the treatment of AR. In 2011, I published a review (FACT 2011, 16 200-203) focussed exclusively on the remarkable set of RCTs of homeopathic Galphimia glauca (GG). My conclusions were as follows: three of the four currently available placebo-controlled RCTs of homeopathic GG suggest this therapy is an effective symptomatic treatment for hay fever. There are, however, important caveats. Most essentially, independent replication would be required before GG can be considered for the routine treatment of hay fever. Since then, no new studies have emerged.
I am citing this for two main reasons:
- There is nothing homeopathic about the principle of using GG for allergic conditions; according to homeopathic theory GG extracts would need to cause allergies for GG to have potential as a homeopathic allergy remedy. Arguably, the GG trials should therefore have been excluded from this meta-analysis for not following the homeopathic principal of ‘like cures like’.
- All the RCTs of GG were done by the same German research group. There is not a single independent replication of their findings!
Seen from this perspective, the conclusion by Mathie et al, that the use of either Galphimia glauca … may have small beneficial effects on the nasal and ocular symptoms of AR, seems more than a little over-optimistic.