In early March, CNN released Weed
2: Cannabis Madness, the second documentary program from its Chief Medical
Correspondent Sanjay Gupta, MD, devoted exclusively to the growing interest in
and legitimization of medicinal cannabis (Cannabis
sativa) in the United States.1 Dr. Gupta’s initial installment,
a documentary titled Weed, was
released on CNN in August of 2013. 2 The first program signified the
highly respected neurosurgeon’s transformation from an opponent to an advocate of
medicinal cannabis. The one-hour special was considered a potentially
influential accomplishment even as it was met with some criticism from experts
in the field of medicinal cannabis research.
Former HerbalGram Associate
Editor Lindsay Stafford Mader, who previously covered the cannabis “beat” for
the American Botanical Council’s publications, authored a critique last fall in
which she evaluated the information presented (or not presented) in Weed.3 The program, according
to Mader, had a variety of deficiencies:
1.
It did not adequately address cannabis’ Schedule I controlled
substance classification;
2.
It oversimplified cannabis chemistry and the effect of cannabis
on children’s brains;
3.
It offered insufficient information on and from cannabis human
clinical trials that have been conducted;
4.
It seemed to misrepresent Colorado’s Stanley Brothers as
the first to produce a high-cannabidiol (CBD) variety of cannabis;
5.
It lacked pushback regarding “stonewalled therapeutic
research”;
6.
And, it possibly alienated viewers with its focus on rare
conditions when individuals suffering from a number of more familiar ailments
also stand to benefit from medicinal cannabis treatment.3
With Weed 2: Cannabis Madness,
Dr. Gupta has not retreated from his stance but “doubled down,” investigating
further and filling in some of the gaps left in his first installment. While some
critical information in Weed 2 remained
underdeveloped or unaddressed altogether, these reports are reflective of the
substantial shift in the majority of Americans’ views regarding the legal
status of cannabis.4
Rare Conditions in the Spotlight
Though Weed 2 features
interviews with individuals who have found relief from chronic pain and
multiple sclerosis symptoms through medicinal cannabis, the documentary — like
its predecessor — centers on a young girl suffering from a rare, severe form of
epilepsy that could prove fatal. In Weed,
that child was Charlotte Figi, whose Dravet Syndrome caused hundreds of
seizures per week. Once virtually catatonic, Charlotte’s life was turned around
by a high-CBD, low-tetrahydrocannabinol (THC, the psychoactive compound that
causes a “high” in users) medicinal cannabis strain that now bears her name:
Charlotte’s Web.2
Similarly, Weed 2 focuses on
two-year-old Vivian Wilson and her family, who were residents of New Jersey
when Dr. Gupta’s team began documenting their story. Vivian was experiencing up
to 75 seizures daily. Her family’s plight for access to medicinal cannabis for
her received national attention when Vivian’s father, Brian Wilson, confronted
New Jersey Governor Chris Christie about the state medical cannabis program’s
constraints regarding minors at a diner during a campaign-related publicity
appearance. (Once considered to be the 2016 Republican presidential candidate
front-runner, Governor Christie’s already-suffering image was not helped by the
footage of his terse exchange with a pleading Brian Wilson that is incorporated
into Weed 2: “I know you think it’s
simple. It’s simple for you; it’s not simple for me,” interrupted Governor
Christie.)1
Many viewers may find the documentaries’ focus on these very young
children to be too exclusive or emotionally manipulative — a valid argument. On
the other hand, perhaps Dr. Gupta’s intent is simply to make the most powerful
case he believes possible by exposing the experiences of subjects whose
existences could be most visibly improved — appropriate to the medium of
television — through therapeutic medicinal cannabis treatment, subjects who
cannot speak for themselves and whose suffering cannot be ascribed to
unhealthful life choices.
“I have now a better appreciation of why he’s choosing to focus on
children with an unusual seizure disorder in view of the fact that he himself
is a neurosurgeon, so a neurologic condition is probably something that’s
compatible with his area of expertise,” said Donald Abrams, MD, an integrative
oncologist who studies clinical cannabis at the University of California - San
Francisco (personal communication, March 27, 2014). “Also,” Dr. Abrams continued,
“I think it’s very compelling to show the immediate and dramatic benefits that
these children obtain in using the high-CBD cannabis.”
“Medical
Marijuana Refugees”
In telling the Wilsons’ story, Dr. Gupta highlights the tragic
phenomenon of so-called “medical marijuana refugees” — families who have left
their home states, jobs, friends, and extended families behind in order to obtain
medicinal cannabis treatment for their children in more permissive states,
Colorado in particular.1
Because cannabis is still illegal on a federal level, most people cannot
bring this medicine across state lines, if it is legal for children in their state
at all. In order to see if Vivian responds to medicinal cannabis — specifically
to an oil made from Charlotte’s Web — Brian takes his two-year-old daughter to
Colorado to establish residency, leaving Vivian’s mother and sister (Meghan and
Adele Wilson, respectively) back in New Jersey.1
In December of 2013, the New
York Times reported on a community of approximately 100 families of myriad
political and religious persuasions from around the country who relocated to
the state of Colorado in a desperate attempt to deliver their children from
unrelenting seizures.5 In Weed
2, Dr. Gupta makes a visit to a gathering of such medical marijuana
refugees in Colorado — speaking to parents from Ohio, Alabama, and Florida —
and emerges heartbroken for these “trapped” families, unable to transport their
children’s medicines home; they could be charged with drug trafficking and risk losing custody of their
children.5
“This is the problem I’m talking about between the federal and the
state level,” said neurologist and Denver Health Comprehensive Epilepsy Program
Chief Edward Maa, MD, interviewed in Weed
2. He continued: “This conflict is really driving families apart.” “That’s
just crazy,” responded Dr. Gupta.1
The Problem of Schedule
I Classification
As in Weed, Weed 2 fails to place cannabis’ Schedule
I designation by the US Drug Enforcement Agency (DEA) into context by providing
examples of other drugs in the category, such as heroin and LSD.1,2 Dr.
Gupta better elucidated in a CNN.com editorial published in anticipation of the
sequel:6
“Marijuana is classified as a Schedule I substance, defined as ‘the
most dangerous’ drugs ‘with no currently accepted medical use,’” wrote Dr.
Gupta. “Neither of those statements has ever been factual. Even many of the
most ardent critics of medical marijuana don't agree with the Schedule I
classification, knowing how it's impeded the ability to conduct needed research
on the plant.”
“[C]ocaine and methamphetamine are actually more available than
marijuana to patients, physicians and medical researchers,” he continued. “They
are Schedule II drugs, with recognized medical uses.”
To his credit, in Weed 2, Dr.
Gupta does call attention to the seeming hypocrisy of cannabis’ scheduling by
pointing out that since October of 2003, the federal government has held a
patent on use of cannabinoids for two medicinal purposes.1
Patent No. 6630507 is
titled “Cannabinoids as Antioxidants and Neuroprotectants.”7 The
patent’s “assignee” is the United States “as represented by the Department of
Health and Human Services.” According to the patent abstract, the antioxidant properties
of cannabinoids make them “useful in the treatment and prophylaxis of wide
variety of oxidation associated diseases, such as ischemic, age-related,
inflammatory and autoimmune diseases,” and their function as neuroprotectants
may serve to “[limit] neurological damage following ischemic insults, such as
stroke and trauma, or in the treatment of neurodegenerative diseases, such as
Alzheimer's disease, Parkinson's disease and HIV dementia.”7
Regulation and
Research
As documented in Weed 2,
Vivian Wilson’s seizures dropped to only 10 per day following regular
administration of Charlotte’s Web oil (as a result, the whole family ultimately
relocates to Colorado).1 Viewers also witness the contrast between
Vivian’s seemingly decreased level of consciousness, plus poor mobility and
lack of balance after receiving a dose of her pharmaceutical anti-seizure medication
versus her unchanged state after being administered high-CBD cannabis oil.
Coupled with an interview with Frank Bianco, who suffers from chronic
pain and turned to medicinal cannabis after his prescribed pain medication made
him feel sick, Weed 2 suggests, at
the very least, that its viewers should consider the intensity of the side
effects of pharmaceutical drugs used to treat many of the same conditions
and/or symptoms that cannabis therapy may benefit or improve with fewer
unwanted or dangerous side effects. Again, Dr. Gupta’s CNN editorial takes this
idea further. “[O]n average, a person dies every 19 minutes in this country
from a legal prescription drug overdose,” he wrote, “while it is virtually unheard-of to die from a marijuana
overdose.”6
“In general, cannabis is very
non-toxic. Unlike opiates, there is no dose of cannabis that arrests breathing,
and there is a reason for this,” said Ethan Russo, MD, president of the
International Cannabinoid Research Society and a senior medical advisor to GW
Pharmaceuticals (email, March 27, 2014). “Most side effects of cannabis usage
are attributable to THC, the primary psychoactive ingredient, which can
certainly cause anxiety, panic and even temporary toxic psychosis when too much
is taken, or an individual is naïve to its effects, or is simply sensitive to
them.”
“However, THC works in these instances
because it binds to the CB1 cannabinoid receptor in the brain,” explained Dr.
Russo. “This receptor is not present in the breathing regulatory centers in the
medulla (lower brainstem), and thus THC cannot produce apnea (breathing
cessation). Similarly, cannabinoids have little or no end-organ toxicity; that
is, they do not damage the liver, kidneys or bone marrow.”
Weed 2’s medicinal
cannabis patient testimonies and the fact of cannabis’ relative safety may
cause one to long for some investigation by the filmmakers into the parties —
if any — responsible for perpetuating the US federal government’s rejection of
the medicinal value of cannabis, which makes research approval especially
difficult to obtain. However, such an investigation may veer too far from Dr.
Gupta’s scientific stomping ground. (He does mention in his editorial that a
number of legislators — whom he does not name — contacted him following the
release of Weed to voice their
support or to learn more.6)
Weed 2 is strongly in
favor of increased medicinal cannabis research, but it glosses over the process
through which proposed medicinal cannabis studies must obtain approval in the
United States, a process which certainly has the potential to seem convoluted,
but in fact could be explained adequately with a visual aid — a chart would do
the trick. Instead, the logos and buildings of various federal agencies
involved in the process are shown in Weed
2, with no guiding information regarding the necessary approval order or
submission guidelines.
Since 1968, the National Center for Natural Products Research (NCNPR)
at the University of Mississippi has been the sole supplier of cannabis for
scientific research in the United States through its contract with the National
Institute on Drug Abuse (NIDA).8 Human clinical trials for
investigational new drugs (IND) that involve controlled substances must be
cleared by both the DEA and the US Food and Drug Administration (FDA). Unlike
with other controlled substances, trials using cannabis must receive approval
from one additional government agency, the Public Health Service (PHS).8
In order to attain FDA’s permission, NIDA must first confirm that it has
adequate cannabis for the research.8 Proposals can be rejected by
PHS even if both the DEA and FDA have approved.8 The current process
is lengthy and limiting.
Geoffrey Guy, MD, chairman of the United Kingdom’s GW Pharmaceuticals
(maker of the patented, cannabis-derived oral spray Sativex®), described
in Weed 2 the US government’s
medicinal cannabis research approval process as having a “greater level of
rigor at all levels of regulatory inquiry” than that of the UK — where cannabis
is also illegal. Sativex has been approved and is on the market in 25
countries, but is still being investigated in the United States. Dr. Guy sees
“generations” of cannabis-derived drugs in GW’s future.
“The reasons for FDA authority in drug
development in proving drug safety and efficacy before approval for general use
would have been very instructive,” said Dr. Russo. “Much more detail on how
Sativex has undergone and surpassed such hurdles might have been very helpful
in emphasizing how doctors may be quite willing to prescribe a product for
their patients that has gone through the regulatory process,” he added,
“whereas they would never consider recommending a black market preparation of
unknown provenance, quality or consistency over time.”
Contamination
“The major issue that physicians have
is in the consistency of the product. How do you know what the person is
getting? And the answer is: We don’t,” Dr. Maa told Dr. Gupta in Weed 2.
Without federal regulations to adhere
to, uniformity and contamination are serious concerns. According to a 2013
study featured the Journal of Toxicology,
“there are no approved pesticides or application limits established for use on
cannabis crops by the US [Environmental Protection Agency]; therefore, all
pesticide use on this crop is currently illegal.”9 However, the
authors write that pesticide use has been determined to be quite common in
cannabis cultivation.9 The results of their study — conducted using
specially configured pipes — show that those pesticide residues transfer to
both the cannabis smoke and the cannabis smoker.9
“Additionally, unregulated cannabis
supplies may harbor molds, or bacteria such as that causing meningococcal
meningitis, and these have occasionally caused serious disease in people
smoking them,” said Dr. Russo. “Another trend in the cannabis market,” he said,
“is the totally unregulated use of cannabis concentrates such as cannabis oils,
hemp oil, ‘wax’ or ‘dabs.’ These are frequently manufactured by inexperienced
and unqualified kitchen chemists employing potentially toxic solvents such as
butane, naptha or isopropyl alcohol.”
Conclusion
“My concerns,” said Dr. Abrams, “continue to be that high-CBD cannabis
preparations are available from other places beyond the [Stanley Brothers] in
Colorado who seem to be attracting a lot of attention with their product. We
have CBD products in dispensaries in California that benefit many patients with
conditions above and beyond these unusual seizure disorders.”
“[T]here is a bit of a downside to focusing only on CBD, the
non-psychoactive medicinal component of cannabis in that most of the work has
actually been done on THC,” noted Dr. Abrams, “and this is providing an
opportunity for prohibitionists to demand that the only cannabis products that
be made available should be CBD without THC, which I think is unfortunate.”
While it may have been taboo to bolster the therapeutic benefits of
THC in a documentary that focused primarily on medicinal cannabis treatment for
a two-year-old girl, in fact, CBD and THC, as well as other compounds in the
plant, are more effective together (even when some are present only in small
amounts) according to the isolator of THC, Raphael Mechoulam, PhD, due to what
he has deemed the “entourage effect.”3 Whole-plant extracts can be
designed to include a range of the various cannabis compounds necessary to benefit
a variety of health conditions.
“It is very difficult to approach the
subject of cannabis, especially its medicinal usage, in just one hour,” said
Dr. Russo. “It is a very complex subject in every respect, and requires
consideration of botany, agriculture, biochemistry, genetics, politics and law,
among others. Certainly, this effort complements the first program, but even
taken ensemble, it would be a mistake to declare it definitive.”
—Ash Lindstrom
References
- Weed 2: Cannabis
Madness. CNN. Originally released March 11, 2014.
- Weed: A Dr.
Sanjay Gupta Special. CNN. Originally released August 11, 2013.
- Stafford Mader L. Dr. Sanjay Gupta’s WEED documentary: a critique. HerbalGram. 2013;100:25-29. Available here.
Accessed March 20, 2014.
- Majority Now Supports Legalizing Marijuana. Pew Research Center. April
4, 2013. Available here.
Accessed August 28, 2013
- Healy J. Familes see Colorado as new frontier on medical marijuana. New York Times. Available here.
Accessed March 21, 2014.
- Gupta S. Gupta: I am ‘doubling down’ on marijuana. Available here. Accessed
March 19, 2014.
- Patent No. 6630507. Available here.
Accessed March 24, 2014.
- Stafford Mader L. The state of clinical cannabis research in the
United States. HerbalGram. 2010;85:64-68.
Available here.
Accessed March 20, 2014.
-
Sullivan N, Elzinga S, JC Raber. Determination
of pesticide residues in cannabis smoke. J
Toxicol. 2013. doi:10.1155/2013/378168.
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