Quite a buzz lately about the placebo effect and back pain, extending from a randomized control trial in Portugal.
“Our findings demonstrate the placebo effect can be elicited without deception. Patients were interested in what would happen and enjoyed this novel approach to their pain. They felt empowered.” – Lead author Claudia Carvalho, Ph.D., ISPA
“It’s the benefit of being immersed in treatment: interacting with a physician or nurse, taking pills, all the rituals and symbols of our healthcare system,” (says placebo researcher Ted Kaptchuk, Professor of Medicine at Harvard Medical School). “The body responds to that.”
While this study focused on chronic pain, Kaptchuk says it is possible that patients with other conditions that involve self-observation – such as fatigue, depression, or digestive problems – may benefit from open-label placebo treatment.
“You’re never going to shrink a tumor or unclog an artery with placebo intervention,” notes Kaptchuk. “It’s not a cure-all, but it makes people feel better, for sure. Our lab is saying you can’t throw the placebo into the trash can. It has clinical meaning, it’s statically significant, and it relieves patients. It’s essential to what medicine means.”
Read the whole article here, and another here.
In Why Placebos Really Work: The Latest Science the Wall Street Journal points to the increasing frequency of ‘serious’ science envisioning health interventions that consciously include placebos and invoke the placebo effect. It seems the mind-body divide is something of an illusion!
Nevertheless, even though at least 50% of doctors actively prescribe placebos – often active drugs in such low doses that there is no apparent therapeutic benefit, or vitamins, antibiotics or over-the-counter analgesics like aspirin – they are still disinclined to prescribe a sugar pill. I guess they feel like it’s cheating, somehow.
Well-timed placebos may be useful in managing type 2 diabetes.
It seems that time, like everything else, has a subjective level – that is, one’s perception of time can actually manifest in the body. How does that work? Check this out …
… and have helped people with migraines, IBS and Parkinson’s.
Placebos have been shown to work for migraines, toothache and IBS
Parkinson’s patients continued to get relief after switching to placebos
After drugs, body becomes pre-conditioned to expect treatment and reacts
50% of American doctors found to prescribe placebos instead of drugs
New studies in the Boston suggest that placebos may causes changes in the body as well as the mind. Even with patients knowing they are being given a non-medicinal drug substitute they have still reported reduced pain and other symptoms in everyday, debilitating conditions such as irritable bowel syndrome or migraines.
So you want to run faster — but you’re not ready for steroids?
No problem: just swallow a pill made of sugar and water that you think is a steroid — and you’ll run faster, because you believe you can.
A recent Scottish study found runners told they were getting performance-enhancing pills felt stronger and ran faster than normally — even though the pills were fake.
It’s just the latest example of the Placebo Effect, one of the most powerful effects known to humans, along with the Greenhouse Effect, the Brexit Effect and the Trump Defect.
Placebos are fake drugs you think are real — and a third of the time, they’re more effective than most drugs in the pharmacy at reducing everything from headaches, pain, nausea, coughs and colds to anxiety caused by fear that the pills your doctor gave you are actually placebos.
Read the full article here.
Stage direction, scripting, and more convincing theatrics could help doctors deliver the full benefits of the placebo effect to their patients, a study suggests.
As practitioners become a little more ‘open’ about their use of placebos, it’s time now to discuss the ethics of such use. From Glackin’s abstract:
It is widely supposed that the prescription of placebo treatments to patients for therapeutic purposes is ethically problematic on the grounds that the patient cannot give informed consent to the treatment, and is therefore deceived by the physician. This claim, I argue, rests on two confusions: one concerning the meaning of ‘informed consent’ and its relation to the information available to the patient, and another concerning the relation of body and mind. Taken together, these errors lead naturally to the conclusion that the prescription of placebos to unwitting patients is unethical. Once they are dispelled, I argue, we can see that providing ‘full’ information against a background of metaphysical confusion may make a patient less informed and that the ‘therapeutic’ goal of relieving the patient of such confusions is properly the duty of the philosopher rather than the physician. Therapeutic placebos therefore do not violate the patient’s informed consent or the ethical duties of the doctor.
The whole paper can be found here. It seems the article has stirred up something of a hornet’s nest among ‘psychopharmacologists’ – see the recommendations listed at the foot of the website.
A detailed and comprehensive meta-analysis of the literature on the ‘nocebo effect’. We note that they report on studies using ‘placebo controlled trials’. Is it just us, or does this read a bit circular? You be the judge!
“Our intention here is to portray the neurobiological mechanisms of nocebo phenomena. Furthermore, in order to sensitize clinicians to the nocebo phenomena in their daily work we present studies on nocebo phenomena in randomized placebo-controlled trials and in clinical practice (medicinal treatment and surgery).”
Download the full article here.
“Antidepressants are supposed to work by fixing a chemical imbalance, specifically, a lack of serotonin in the brain. Indeed, their supposed effectiveness is the primary evidence for the chemical imbalance theory. But analyses of the published data and the unpublished data that were hidden by drug companies reveals that most (if not all) of the benefits are due to the placebo effect. Some antidepressants increase serotonin levels, some decrease it, and some have no effect at all on serotonin. Nevertheless, they all show the same therapeutic benefit. Even the small statistical difference between antidepressants and placebos may be an enhanced placebo effect, due to the fact that most patients and doctors in clinical trials successfully break blind. The serotonin theory is as close as any theory in the history of science to having been proved wrong. Instead of curing depression, popular antidepressants may induce a biological vulnerability making people more likely to become depressed in the future.”
More on the continuing critique of widespread prescription of antidepressants here.
An international expert on the “placebo effect” says with addiction and abuse of opioid prescription drugs on the rise, it may be time for doctors treating patients with chronic conditions or addictions to consider intermittently substituting substances like morphine with dummy pills.
With or without telling patients.
“Placebos are being used in routine medical practice now by many doctors in many circumstances, but the main goal is to reduce intake of drugs. If we are talking about narcotics and other drugs of abuse, the approach is, for example, give morphine on six consecutive days and then a placebo on the seventh day. There are three or four studies with good scientific approaches to this and in those three countries I mentioned, placebo prescribing is more common.”
Asked about the ethics of substituting pills, he said:
“If you want to reduce intake of certain drugs, why not? I think that’s perfectly ethical, but if you want to prescribe placebos so you aren’t bothered by hospital patients in the middle of the night, that’s a different situation.”
Benedetti told delegates that researchers now understand more about the psychosocial context for real drug or placebo treatment effects. Certain words spoken by the health professional (“This pill is really going to help you”), the rituals associated with treatment (such as needle injections) and other sensory experiences all influence whether patients have positive expectations of health improvement. Personality traits can be important factors in who responds to placebos; optimists are more susceptible to having a placebo response while skeptics may have a nil effect.
Full article here.