Although physician-assisted dying (PAD) remains a highly
contentious and controversial topic, it is going on. It is now legal in six
states in the United States. In these states, the law allows physicians to
offer terminally ill adults the option of a lethal dose of an oral prescription
medication, provided the patient meets strict criteria.
But what are these medicines, and how are they used? An
investigation by Medscape finds a that a huge price jump in one of the oral
drugs that is used for this purpose, as well as an acute shortage of another,
have led to the development of a new drug cocktail.
The price hike began only a month after California proposed
legislation, in 2015, that would make it the fifth state to allow PAD. The
company manufacturing the drug most commonly used in this process,
secobarbital, dramatically raised the cost of the drug, and the price has since
jumped several more times.
The result was that the price tag of ending one's life
jumped from around $200 to $3000 or higher…
In 2009, a lethal dose of secobarbital (100 capsules) cost
less than $200 (less than $2 per capsule), a fraction of what it is now. During
the next 6 years, the price gradually crept up to $1500 until its purchase by
Valeant Pharmaceuticals, which promptly doubled the cost. Whether or not the
timing with California's law was deliberate, some have called the move "exploitive,"
in that secobarbital is a generic drug that has been on the market for about 80
years.
More importantly, by 2015, secobarbital had become the only
viable option for patients seeking to end their lives, and doubling the price
suddenly put a heavy financial burden on the price of
dying. This leads to the question of choice ― why is there virtually none? Can it be that there is only one drug available in the United States for patients who choose this option?
dying. This leads to the question of choice ― why is there virtually none? Can it be that there is only one drug available in the United States for patients who choose this option?
Currently, six states can authorize physicians to offer
terminally ill adults the option of a lethal dose of an oral prescription
medication…
Several other countries permit this practice, but notably,
Canada, Belgium, Luxembourg, and the Netherlands also allow euthanasia, whereby
a physician can administer a lethal drug dose by injection. This allows more
leeway and options as to the selection of drugs, cost, and mode of delivery.
For example, in Ontario, Canada ― a country where patients
have a choice ― there have been very few cases of self-administration, less
than 1%, according to James Downar, MD, CM, MHSc, a critical care and
palliative care physician at the University Health Network in Toronto.
As far as he is aware, all self-administrated cases have
involved oral phenobarbital, generally with chloral hydrate and morphine added.
"There is a strong desire to avoid the oral route here, given the failure
rate," Dr Downar told Medscape Medical News…
In a scenario similar to what had transpired with sodium
thiopental, Danish drugmaker Lundbeck, the sole manufacturer of injectable
pentobarbital at that time, pulled the plug only 6 months after pentobarbital
made its debut in the Oklahoma execution.
"Cost can be an issue for the oral route ― that amount
of phenobarbital is several hundred dollars as of the last check," Dr
Downar noted. "I think some people get coverage for it, but it is not a
reimbursed drug in Ontario. The intravenous meds are free, on the other hand,
even when used outside of a facility."
In a lethal injection, the following drugs are administered
in the following sequence: midazolam, to induce sedation; lidocaine, to reduce
injection discomfort; propofol, to induce coma, myocardial depression,
respiratory depression and vasoplegia; and rocuronium, to induce respiratory
muscle paralysis. These details were outlined by Madeline Li, MD, PhD, FRCP(C),
a psychiatrist in the Department of Supportive Care at the University Health
Network–Princess Margaret Cancer Center, Toronto.
With oral drugs, the choice is not only contingent on drugs
that are well tolerated and fast acting, but they also must be relatively easy
for the patient to self-administer at a high dose…
Fast-acting barbiturates quickly became the drugs of choice,
in particular, secobarbital and pentobarbital. In the first 19 years of
Oregon's law, secobarbital was used for 59.3% of patients, pentobarbital for
34.3%, and other drugs for the remaining 6.5%...
The lethal dose is much higher. Typically, 9 g of
secobarbital in capsules or 10 g of pentobarbital liquid or powder needs to be
consumed at one time. The contents of the secobarbital capsules or
pentobarbital powder are generally mixed with juice or another sweet substance
to mask the bitter taste.
The choice of drug was largely made on the basis of factors
such as availability, price, and preference of prescriber and patient…
"When the cost of secobarbital reached $1000,
pentobarbital then became more popular between 2011 to 2014," he explained
in an interview…
The cost of a lethal dose of pentobarbital powder was about
$350 and had remained constant during the period in which the price of
secobarbital climbed upward….
The cost of secobarbital skyrocketed, making pentobarbital
the far more affordable option. But at the same time that the price of
secobarbital doubled, the oral formulation of pentobarbital vanished from the
shelves of US pharmacies.
In 2015, the price of secobarbital doubled overnight, to
about $30 per 100-mg capsule. This becomes very pricey when multiplied by 100 ―
the number of capsules that must be taken for a lethal effect. Veena Shankaran, MD, and colleagues from the Fred Hutchinson
Cancer Research Center and the Seattle Cancer Care Alliance, Washington,
tracked the mean out-of-pocket cost for secobarbital between 2010 and 2016, as
prescribed at their institutions. As reported in JAMA Oncology, in 2010, the
cost was $387.52. It then progressively increased: $638.31 in 2011, $860.83 in
2012, $1131.39 in 2013, $1451.21 in 2014, $1757.29, until reaching an all-time
high of $2878.79 in 2016, after the drug was acquired by Valeant in 2015.
"Valeant Pharmaceuticals, now under federal
investigation, is a highly publicized example of ruthless drug price inflation
practices," write the authors…
Secobarbital was not the only drug for which there was a
substantial price hike after being acquired by Valeant. The company had made it
a business practice of buying inexpensive drugs from other companies and
aggressively pushing up the price tag…
Despite attempts at a company overhaul, drug prices to date
have not decreased, at least not for secobarbital. The price tag for a lethal
dose remains as high as it was two years ago.
Medscape Medical News queried Valeant as to whether there
were any plans to make secobarbitol more accessible to patients in states that
allow PAD, but the company declined to comment on that issue…
Similar to secobarbital, the barbiturate pentobarbital is
another "ancient" drug that has been prescribed in the United States
for decades ― as both an injectable and oral agent. Although the injectable
version continues to be available, the entire inventory of oral formulations,
including capsules, liquid and powder, has been removed from the marketplace.
"Our pharmacists have scoured the country trying to
find a source of pentobarbital," said Carol Parrot, MD, a Washington-based
retired anesthesiologist who now serves as an attending or consulting physician
for Death With Dignity patients throughout the state. "But there are no
FDA-regulated sources remaining in the US."…
There is a peculiar irony in that drugs used for both
executions and PAD have become increasingly hard to come by, with markets
drying up on both ends of this highly polarized spectrum. Powerful emotions
rage for these two explosive issues on all sides, but at the end of the day,
the same outcome is sought ― a drug or drug combination that will allow a rapid
and painless death.
The FDA lists several US-based pharmaceutical companies that
at one time or another manufactured a variety of oral formulations of
pentobarbital. All have been discontinued.
When questioned about this, the FDA told Medscape Medical
News, "As the oral pentobarbital products were voluntarily withdrawn or
discontinued by the manufacturers, the companies are the best source of
information on why they are no longer available in the United States."
Virtually all of the companies that once produced these
products have merged with or been acquired by other drug manufacturers. Several
were contacted by Medscape Medical News but either they did not respond to the
inquiry or were unable to offer any insight into the discontinuation of oral
pentobarbital. Product lines often change after mergers and acquisitions, and
pentobarbital may have been dropped because of its extremely limited use in
healthcare settings…
"When the price of secobarbital rose from the $500
range to $3000 or more for the same dose, our group decided to try some other
options," explained Dr Wood. "First, we tried a mixture of chloral
hydrate and alcohol ― the 'Mickey Finn' of times past ― along with phenobarbital
and morphine." However, patients complained of a burning sensation. It was
assumed that the burning was caused by the alcohol, which was then made
optional. "But over time, we discovered that the chloral hydrate itself
was very 'burning' in the mouth, throat, esophagus, stomach for some folks, and
our volunteers decided they wanted us to design something better."
Last summer, Dr Wood and his colleagues convened a group of
internists, anesthesiologists, a toxicologist, a cardiologist, and a
pharmacologist to devise a better drug cocktail. They came up with DDMP
(diazepam 0.5 g, digoxin 25 mg, morphine 10 gm, and propranolol 2 g) that
uniformly worked.
"Given the circumstances of these patients, it was
challenging to develop a protocol to take the place of barbiturates," said
Dr Parrot. "Most of the patients using Death With Dignity in Washington
State have cancer, and many are using large doses of narcotics to manage
pain."
The initial protocol contained lethal doses of pain and
anxiety drugs, as well as backup cardiac drugs. But data from the first 70
patients indicated that 80% died in 4 hours or less, but the remaining 20% took
longer.
To refine the drug cocktail, Dr Parrot and her colleagues
studied the "outliers" for whom death took longer.
"We needed to figure out what characteristics were
common to the outlier group and what to do to speed up the process, while still
providing a safe, peaceful, painless death," she said. "What we found
was that patients who took longer to die included those in intractable pain,
those using IV narcotic drips, or patients tolerant to alcohol."
She explained that other factors and patient characteristics
also had to be considered. A new drug regimen (DDMP2), which contains higher
doses of three of the four drugs, was developed and is now recommended. Times
have iproved for all groups of patients using this regimen.
DDMP2 contains diazepam 1 g, digoxin 50 mg, morphine 15 g,
and propranolol 2 gm.
With the new protocol, patients passed more quickly, and
there were no adverse events other than the nausea and vomiting often seen in terminally
ill patients….
As more laws are passed across the United States, the need
for an effective and affordable medication or drug combination becomes
increasingly imperative. Even if covered by insurance, artificially inflated
drug costs place a burden on the healthcare system and on society in general,
so a safe and inexpensive option would benefit everyone.
Currently, unless the generic and widely available drugs
used in DDMP2 fall victim to price gouging or some other unforeseen issue, it
appears that a viable option has become available.
For now.
https://www.medscape.com/viewarticle/888271
No comments:
Post a Comment