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Novel cannabinoid could treat cancer-related anorexia

Anorexia affects over 60 percent of later-stage cancer patients



ART27.13 activates CB1 and CB2 receptors in the gut

A synthetic cannabinoid product could offer a new treatment for late-stage cancer patients with anorexia.

California-based pharmaceutical company, Artelo Biosciences is investigating the efficacy of its synthetic cannabinoid product, as a much-needed therapy for cancer patients experiencing anorexia and weight loss.

Anorexia affects over 60 percent of later-stage cancer patients, but there are currently no approved medicines for the condition.

A weight loss of more than five percent can predict a poor outcome for cancer patients and a lower response to chemotherapy.

Artelo Biosciences has developed the novel ART27.13, designed to target the endocannabinoid system’s (ECS) CB1 and CB2 receptors in gut, without crossing the blood barrier.

This means that despite being more potent, it causes fewer side effects than naturally occurring cannabinoids such as THC. 

The company announced last month that the first patient has been dosed in its Phase 1/2 Cancer Appetite Recovery Study (CAReS), taking place at the University of Edinburgh, in the UK. 

Professor of pharmacology and scientific advisor to Artelo biosciences, Saoirse O’Sullivan spoke to Cannabis Health about the significance of the study and its potential benefits for cancer patients and others with a range of conditions. 

Saoirse O’Sullivan, PhD, professor of pharmacology

Cannabis Health: What is cancer-related anorexia, and why is it in need of more awareness?

Saoirse O’Sullivan: Anorexia affects over 60 percent of late-stage cancer patients. Anorexia and the resulting weight loss in cancer patients compromises health, weakens the immune system, causes discomfort and dehydration, ultimately reduces the patient’s prognosis and quality of life. 

No medicines are currently approved for treating cancer anorexia, but Megace (Megestrol acetate), THC compounds (Dronabinol), and steroids (dexamethasone) are used off label with limited efficacy and often intolerable side effects. Therefore this remains a significant unmet need in a considerably vulnerable patient group.

CH: How could the drug being developed by Artelo Biosciences could help patients?

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SO: ART27.13 is a CB1/CB2 receptor agonist that doesn’t effectively cross the blood brain barrier and therefore does not cause activation of the CB1 receptor in the brain. This means that there are potentially few central nervous system-mediated side effects like paranoia, memory loss and psychosis. 

ART27.13 was originally developed by Astra Zeneca as a pain medication, but the programme was terminated because it was not effective in people after a molar extraction. However, in otherwise healthy subjects who participated in a Phase 1 pain study it was observed that low doses of ART27.13 rapidly increased body weight of more than three percent that was not explained by fluid retention and without serious or persistent side effects. 

With the knowledge that activation of the CB1 receptor in the periphery can increase appetite and weight loss, ART27.13 represents a novel therapeutic strategy to stimulate appetite and weight gain known to arise from CB1 receptor activation that could significantly benefit patients with cancer-associated anorexia without CNS side effects.

CH: What makes it different from naturally occurring cannabinoids? 

SO: The major differences between ART27.13 and THC are that ART27.13 is more potent and it doesn’t easily cross into the central nervous system.

CH: ART27.3 is said to specifically target receptors in the gut, could you explain how it works?

SO: ART27.13 will activate CB1 receptors in the periphery which impacts the overall energy balance of mammals in a number of different ways; inhibiting satiety (feeling full) and nausea, increasing food intake, altering the levels hormone that control appetite, altering taste sensation, slowing gastrointestinal motility, decreasing lipolysis (fat break down) and increasing lipogenesis (fat generation). The combined effect of peripheral CB1 activation is to promote appetite, and energy storage and preservation.

CH: Could this potentially be helpful in other patients with anorexia, not related to cancer? 

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SO: Yes it is possible that ART27.13 could positively impact other types of patients with anorexia by the same mechanisms of action. Positive data from our CAReS trial in cancer patients would help to support that idea.

CH: And what about its potential in other conditions?

SO: While oncology is the main focus of Artelo Biosciences, there are many other indications for which a peripherally restricted CB1 agonist could be beneficial, for example in muscle spasticity, neuropathic pain, anti-tumoural effects, and gastrointestinal disorders.


US Congresswoman speaks out about how cannabis helped her depression

Nancy Mace spoke out about using cannabis to help her depression after experiencing a traumatic event as a teenager



Image credit: Nancy Mace/Instagram

A Republican congresswoman who has proposed a federal bill to legalise cannabis has spoken out about her experience using cannabis to combat depression.

Nancy Mace, a republican politician from South Carolina appeared on Fox Business’s ‘Kennedy’ show to talk about the bill which would legalise cannabis but would also focus on veteran access.

It also includes expungement for non-violent cannabis crimes and imposes a revenue tax that would support reinvestment into communities hurt by the war on drugs.

Bill: A banner for always pure organics

The bill titled the States Reform Act would federally legalise and tax cannabis has been proposed ahead of competing Democrat proposed bills. While the bill was originally proposed in July, Mace shared her story after officially filing the State Reform Act in November.

At the end of the discussion, host, Lisa “Kennedy” Montgomery asked the congresswoman if she smoked cannabis.

Nancy replied: “When I was 16, I was raped. I was given prescription medication that made the feelings I had of depression worsen, and I stopped taking those prescription drugs and I turned to cannabis for a brief period of time in my life.”

She added that she believed her experience with cannabis made her more sympathetic to veterans who may use cannabis for conditions such as post-traumatic stress disorder (PTSD).

Bill protection for veterans

The congresswoman explained that the new bill is “particularity protective of veterans, ensuring they are protected, not discriminated against and that the US Department of Veteran Affairs can utilise cannabis for their PTSD.”

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She added: “When I talk to vets and I see that pain, it hurts because I felt that pain before in my life. Veteran suicide, we see every single day.”

One other provision in the bill is that cannabis would be under the Treasury Department’s Alcohol and Tobacco Tax and Trade Bureau (TTB) instead of the Food and Drug Administration (FDA). The FDA would have some involvement similar to its current control over the alcohol industry.

Bill history

Mace has already won an exception for rape and incest victims in a fatal fetal heartbeat bill. She mentioned her history when it came to proposing that bill in 2019.

She said: “I’ve had family that have overdosed from hardcore opiates and prescription drugs. And I’ve mentioned part of this in 2019, at the time I got the exception for rape and incest in the fetal-heartbeat bill I told my story about being raped when I was 16, but I’ve never said this part publicly before: I was prescribed antidepressants afterwards, and it made my feelings a lot worse. And so I started using cannabis for a brief moment, for a time in my life. It helped me. It cut down on my anxiety and helped me get through some dark periods.”


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Study: States with full legal access show fewer registered medical cannabis patients

“If true, this could have implications for public health and policy,” say researchers.



Study shows U.S states where cannabis is legal for recreational purposes have experienced a decrease in patients registering for medical cannabis programmes.

The study on different US states, published in the International Drug Journal, revealed that numbers of registered and active medical cannabis consumers increased while it was not legal for recreational use.

Researchers in Arizona took data from the medical cannabis registry from two dozen states between 2013 and 2020.  These are mandatory registries that record the number of medical cannabis patients. They analysed the data to see if there were any changes around the times that recreational legalisation was introduced.

There are currently 19 states in the US that have legalised recreational cannabis including New Jersey, Vermont, Arizona and New York. However, more states have medical cannabis programs although some are still not operational. Some states such as Colorado have had recreational access since 2012, the year before the study was started.

Medical cannabis patients

The results confirmed that medical cannabis cardholders increased during times when recreational use was not legal. It then subsequently decreased when it became legal.

It also revealed an increase of 380 patients per 100,000 people per year when just medical cannabis was legal. This corresponded to a decrease of 100 patients per 100,000 after recreational cannabis was allowed. The researchers noted that active registered active male patients decreased faster than women. In states where only medical cannabis was legal, the older age groups (35 or older), increased faster.

They also found that in three states with medical-only use, the results showed significant increases in enrollment from 2016 to 2020 across white, African-American and Hispanic patients.

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The researchers wrote: “There is speculation that enrollment in U.S. state medical cannabis programs differs depending on whether adult recreational cannabis use is legal. If true, this could have implications for public health and policy.”

“Findings suggest that recreational cannabis legalisation is associated with decreasing enrollment in medical cannabis programs, particularly for males.”

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Fibromyalgia and medical cannabis: “I find my pain is completely gone”

Natalie began experiencing fibromyalgia pain when she was a teenager but wasn’t diagnosed until her 20s.



Fibromyalgia: An illustration of a woman in pain holding an umbrella

Natalie talks to Cannabis Health about living with fibromyalgia and how cannabis has helped her with pain relief.

Fibromyalgia can be a debilitating condition leaving patients with chronic pain, fatigue and increased sensitivity. Other side effects can include poor sleep, cognitive issues and headaches. It is thought to affect around 1.5-2 million people in the UK.

Natalie was diagnosed with fibromyalgia when she was in her first year of teaching. She had been experiencing some of the symptoms since she was in her early teens but doctors told her it was growing pains.

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“Since I was about 12, I had a lot of pain that came and went with a lot of fatigue,” she explains.

“The doctor’s put it down to growing pains. When I was I was in my first year of teaching, one day I woke up and couldn’t do anything. I was incredibly tired and in so much pain.

“I felt that way for months and I was really struggling. I got my formal diagnosis from a rheumatologist. I had a lot of blood and strength tests to make sure I didn’t have arthritis or lupus because of the similar symptoms.”

Life with fibromyalgia

Once Natalie had her diagnosis, her life began to change. She quit her teaching job as it became too much to cope with when her symptoms were bad. She took on jobs where she could choose her own hours or work part-time.

“I ended up working as a children’s entertainer because it was good money,” she says.

“I could do it over a few days a week and make an acceptable amount of money to cover my bills. I did retail work alongside it.”

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When it came to socialising, to stop herself from feeling isolated, Natalie turned to online communities to meet people and make friends.

“I’m not amazing at socialising, so I’ve always found it a struggle. I didn’t stay in touch with a lot of people from university or school because I also have mental health problems that held me back. This isolated me a lot so I did turn to online communities where I met a few people who I’m still friends with now,” says Natalie.

It wasn’t until she joined online fibromyalgia communities that someone suggested that cannabis may have benefits.

“I never really knew about its benefits, although I knew it would relax you,” she admits.

“People in my fibromyalgia groups said they used medical cannabis and found it helpful. It’s only really been the last few years where I’ve used it properly as a medicine.”

Fibromyalgia: An illustration of a woman using a laptop

Fibromyalgia pain

Cannabis may help with the pain experienced by fibromyalgia patients. A recent study on patients diagnosed with fibromyalgia and other inflammatory rheumatic diseases reported a reduction in pain levels following medical cannabis use. The study surveyed 319 patients about their use of medical cannabis products. Those with fibromyalgia reported a mean pain level reduction of 77 per cent while 78 per cent also reported sleep quality improvement.

Although Natalie has family members who use medical cannabis in legal states in the US, she hadn’t considered using it herself. Despite being open to the idea of a prescription, she says there was very little mentioned to her about pursuing it by her doctors.

“It’s weird because it’s almost like a whisper network. I would never have known about the private medical thing because it’s not really mentioned and the health sector doesn’t talk about it. They don’t actively tell you about prescriptions,” she says.

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Natalie has found that cannabis helps her most with the pain.

“A lot of the time, I get shoulder or lower back pain. If other people knew my pain level, they would have a different idea of what pain is, but I guess I’m used to it,” she says.

““Due to the way I work, I don’t use it until the evening. At the end of the day, I’ll use cannabis and I find my pain is completely gone. Sometimes, if I’m struggling then I’ll have a nice bath, have my cannabis and that’s the perfect combination.”

Cannabis Stigma

Natalie is guarded about her cannabis use because of the stigma but also due to her job. She is open with some of her friends but not her family. She chose to use only her first name to avoid being identified.

“My parents are from a different generation and they are quite conservative too. It’s very different for them so they don’t understand how it would help. My clients obviously don’t know, as some wouldn’t like it. [But] I have clients in the Netherlands who don’t drink but will go for a joint but it’s different for me,” she says.

“People still struggle to admit to taking medication because of the attitude. I’ve tried Tramadol, Xanax and all sorts of things that have more impact on how you feel, physically and mentally compared to cannabis. But that’s  acceptable because it’s prescribed by a big pharmaceutical company.”

Natalie feels that there is a lot to be changed in terms of education, so that people know the benefit of cannabis when it comes to conditions like fibromyalgia. She also highlighted that there should be more awareness of the options out there when it comes to accessing a prescription.

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“More people should be aware of the benefits of what it can do, rather than it being a niche internet topic or having a weird stigma around it,” she adds.

“Medical professionals need to be more aware of how it can help and the different avenues that people can go down to get prescriptions.”


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