Anxiety


Clinical And Cognitive Improvement Following Full-Spectrum, High-Cannabidiol Treatment For Anxiety: Open-Label Data From A Two-Stage, Phase 2 Clinical Trial

Mary Kathryn Dahlgren, Ashley M. Lambros, Rosemary T. Smith, Kelly A. Sagar, Celine El-Abboud & Staci A. Gruber (November 2022)


Results provide preliminary evidence supporting efficacy and tolerability of a full-spectrum, high-CBD product for anxiety. Patients quickly achieve and maintain symptom reduction with few side effects.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


Cannabidiol For Treatment-Resistant Anxiety Disorders In Young People: An Open-Label Trial

Maximus Berger, MD, PhD, Emily Li, BPsychPsy, Simon Rice, PhD,Christopher G. Davey, MBBS, PhD, Aswin Ratheesh, MBBS, PhD, Sophie Adams, MBBS, PhD, Henry Jackson, PhD, Sarah Hetrick, PhD, Alexandra Parker, PhD, Tim Spelman, PhD, Richard Kevin, PhD, Iain S. McGregor, PhD, Patrick McGorry, MBBS, PhD, G. Paul Amminger, MD, PhD (August 2022)

In this open-label trial, 31 young people aged 12–25 years with a DSM-5 anxiety disorder and no clinical improvement despite treatment with cognitive-behavioral therapy and/or antidepressant medication were enrolled between May 16, 2018, and June 28, 2019. All participants received add-on CBD for 12 weeks on a fixed-flexible schedule titrated up to 800 mg/d.

Mean (SD) OASIS scores decreased from 10.8 (3.8) at baseline to 6.3 (4.5) at week 12, corresponding to a −42.6% reduction (P < .0001). Depressive symptoms (P < .0001), CGI-Severity scale scores (P = .0008), and functioning (P = .04) improved significantly. Adverse events were reported in 25 (80.6%) of 31 participants and included fatigue, low mood, and hot flushes or cold chills. There were no serious and/or unexpected adverse events.

These findings suggest that CBD can reduce anxiety severity and has an adequate safety profile in young people with treatment-resistant anxiety disorders. Randomized controlled trials are needed to confirm the efficacy and longer-term safety of this compound.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


An Investigation Of Cannabis Use For Insomnia In Depression And Anxiety In A Naturalistic Sample

Nirushi Kuhathasan, Luciano Minuzzi, James MacKillop, Benicio N. Frey (April 2022)

Little is known about cannabis use for insomnia in individuals with depression, anxiety, and comorbid depression and anxiety. To develop a better understanding of distinct profiles of cannabis use for insomnia management, a retrospective cohort study was conducted on a large naturalistic sample.

Overall, cannabis was perceived to be efficacious across all groups, regardless of age and gender. Dried flower and oral oil were reported as the most used and most efficacious product forms. In the depression group, all strains were perceived to be efficacious and comparisons between strains revealed indica-dominant, indica hybrid, and sativa-dominant strains were significantly more efficacious than CBD-dominant strains. In anxiety and comorbid conditions, all strain categories were perceived to be efficacious with no significant differences between strains.

In terms of perceptions, individuals with depression, anxiety, and both conditions who use cannabis for insomnia report significant improvements in symptom severity after cannabis use.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


Could Cannabidiol Be A Treatment for Coronavirus Disease-19- Related Anxiety Disorders?

Saoirse E. O’Sullivan, Carl W. Stevenson, and Steven R. Laviolette (February 2021)

We hypothesize that cannabidiol (CBD), a chemical isolated from Cannabis sativa with reported anxiolytic properties, could be a therapeutic option for the treatment of COVID-19-related anxiety disorders. In the global over-the-counter CBD market, anxiety, stress, depression, and sleep disorders are consistently the top reasons people use CBD.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


Use Of Cannabidiol For The Treatment of Anxiety: A Short Synthesis Of Pre-Clinical and Clinical Evidence

Madison Wright, Patricia Di Ciano and Bruna Brands (January 2020)

Anxiety disorders have the highest lifetime prevalence of any mental illness worldwide, leading to high societal costs and economic burden. Current pharmacotherapies for anxiety disorders are associated with adverse effects and low efficacy. Cannabidiol (CBD) is a constituent of the Cannabis plant, which has potential therapeutic properties for various indications. After the recent legalization of cannabis, CBD has drawn increased attention as a potential treatment, as the majority of existing data suggest it is safe, well tolerated, has few adverse effects, and demonstrates no potential for abuse or dependence in humans. Pre-clinical research using animal models of innate fear and anxiety-like behaviors have found anxiolytic, antistress, anticompulsive, and panicolytic-like effects of CBD. 

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


The Experimental Effects Of Psilocybin On Symptoms Of Anxiety And Depression: A Meta-Analysis

Simon Goldberg, Brian Pace, Christopher Nicholas, Charles Raison and Paul Hutson (January 2020)

The current meta-analysis examined the effects of psilocybin in combination with behavioral interventions on anxiety and depression in samples with elevated symptoms. Across four studies (one uncontrolled; three randomized, placebo-controlled; N=117), within-group pre-post and pre-follow-up effects on anxiety and depression were large (Hedges’ gs=1.16-1.47) and statistically significant. Across three placebo-controlled studies, pre-post placebo-controlled effects were also large (gs=0.82- 0.83) and statistically significant. No serious adverse events were reported. Limitations include the small number of studies and risk for bias within studies. Results tentatively support future research on psilocybin for the treatment of anxiety and depression.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


Perceived Efficacy Of Medical Cannabis In The Treatment Of Co-Occurring Health-Related Quality Of Life Symptoms

Douglas Bruce, Elissa Foster & Mona Shattell (November 2019)

For persons living with chronic conditions, health-related quality of life (HRQoL) symptoms, such as pain, anxiety, depression, and insomnia, often interact and mutually reinforce one another. There is evidence that medical cannabis (MC) may be efficacious in ameliorating such symptoms and improving HRQoL. As many of these HRQoL symptoms may mutually reinforce one another, we conducted an exploratory study to investigate how MC users perceive the efficacy of MC in addressing co-occurring HRQoL symptoms. We conducted a cross-sectional online survey of persons with a state medical marijuana card in Illinois (N = 367) recruited from licensed MC dispensaries across the state. We conducted tests of ANOVA to measure how perceived MC efficacy for each HRQoL symptom varied by total number of treated symptoms reported by participants. Pain was the most frequently reported HRQoL treated by MC, followed by anxiety, insomnia, and depression. A large majority of our sample (75%) reported treating two or more HRQoL symptoms. In general, perceived efficacy of MC in relieving each HRQoL symptom category increased with the number of co-occurring symptoms also treated with MC. Perceived efficacy of MC in relieving pain, anxiety, and depression varied significantly by number of total symptoms experienced. This exploratory study contributes to our understanding of how persons living with chronic conditions perceive the efficacy of MC in treating co-occurring HRQoL symptoms. Our results suggest that co-occurring pain, anxiety, and depression may be particularly amenable to treatment with MC.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


The Role Of Cannabis In Treating Anxiety

Michael Van Ameringen, Jasmine Zhang, Beth Patterson & Jasmine Turna (November 2019)

Cannabis use for medical purposes has become increasingly common, including as treatment for mental health disorders such as anxiety. Unfortunately, the evidence examining its use in mental health has been slow to evolve, but is emerging. Given the widespread use of cannabis, it is important for both clinicians and those who suffer with anxiety to understand the effects of cannabis on symptoms of anxiety. In this review, we present recent, available evidence from animal models, clinical trials, and survey studies and evaluate the contribution of these studies to the current understanding of the role of cannabis in treating anxiety.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


Anxiolytic Effects Of Repeated Cannabidiol Treatment In Teenagers With Social Anxiety Disorders

Nobuo Masataka (November 2019)

Accumulated evidence indicates that cannabidiol (CBD), a nonpsychotomimetic and nonaddictive main component of the Cannabis sativa plant, reverses anxiety-like behaviour. The purpose of the present study was to assess the efficacy of CBD treatment for Japanese late teenagers with social anxiety disorder (SAD). Thirty-seven 18 - 19 years old Japanese teenagers with SAD and avoidant personality disorder receive, in a double-blind study, cannabis oil (n = 17) containing 300 mg CBD or placebo (n = 20) daily during 4 weeks. SAD symptoms were measured at the beginning and end of the treatment period using the Fear of Negative Evaluation Questionnaire and the Liebowitz Social Anxiety Scale. CBD significantly decrease anxiety measured by both scales. The results indicate that CBD could be a useful option to treat social anxiety.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


Modulation Of the Endocannabinoid And Oxytocinergic Systems As A Potential Treatment Approach For Social Anxiety Disorder

Rafael Guimarães Dos Santos, Flávia de Lima Osório, Rocio Martin-Santos, Antonio Zuardi, Jaime Hallak and José Crippa (October 2019)

Social anxiety disorder (SAD), or social phobia, is one of the most common types of anxiety disorder, with a lifetime prevalence that can reach 15%. Pharmacological treatments for SAD have moderate efficacy and are associated with significant adverse reactions. Therefore, recent studies have focused on searching for new treatments for this disorder. Preclinical studies and preliminary evidence in humans suggest that the phytocannabinoid cannabidiol and the neuropeptide oxytocin have anxiolytic effects. In the present text, we review this evidence and its implications for pharmacological treatment. We conclude that although current available studies show promising results regarding both the safety and efficacy of cannabidiol and oxytocin for the treatment of SAD, most studies were performed using single or few doses of these compounds, with small sample sizes. Therefore, future studies should explore the anxiolytic potential of these compounds using long-term, placebo-controlled designs with larger samples to elucidate the possible use of these compounds in the treatment of SAD.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


The “Entourage Effect”: Terpenes Coupled With Cannabinoids For The Treatment Of Mood Disorders And Anxiety Disorders

Sari Goldstein Ferber, Dvora Namdar, Danielle Hen-Shoval, Gilad Eger, Hinanit Koltai, Gal Shoval, Liat Shbiro and Aron Weller (September 2019)

Mood disorders are the most prevalent mental conditions encountered in psychiatric practice. Numerous patients suffering from mood disorders present with treatment-resistant forms of depression, co-morbid anxiety, other psychiatric disorders and bipolar disorders. Standardized essential oils (such as that of Lavender officinalis) have been shown to exert clinical efficacy in treating anxiety disorders. As endocannabinoids are suggested to play an important role in major depression, generalized anxiety and bipolar disorders, Cannabis sativa, was suggested for their treatment. The endocannabinoid system is widely distributed throughout the body including the brain, modulating many functions. It is involved in mood and related disorders, and its activity may be modified by exogenous cannabinoids. CB1 and CB2 receptors primarily serve as the binding sites for endocannabinoids as well as for phytocannabinoids, produced by cannabis inflorescences. However, ‘cannabis’ is not a single compound product but is known for its complicated molecular profile, producing a plethora of phytocannabinoids alongside a vast array of terpenes. Thus, the “entourage effect” is the suggested positive contribution derived from the addition of terpenes to cannabinoids.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


Patient-Reported Use Of Medical Cannabis For Pain, Anxiety, And Depression Symptoms: Systematic Review And Meta-Analysis

Jesse Kosiba, Stephen Maisto and Joseph Ditre (June 2019)

Rationale: Certifications for medical cannabis are generally restricted to a small number of specific medical conditions, yet patients frequently report symptoms of pain, anxiety, and depression as reasons for use. This is a critical concern for researchers, healthcare providers, and policymakers, yet research in this area is currently obstructed by the lack of a focused review or empirical synthesis on patient-reported reasons for medical cannabis use. Conclusion: Findings are discussed with regard to possible explanations for current results, clinical considerations, and areas of future research that are needed to move the field forward.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


The Therapeutic Potential Of Cannabis Compared To Benzodiazepines In The Treatment Of Anxiety

Krystal Piumatti (June 2019)

Anxiety disorders are one of the most common psychological problems today (Rowa & Antony, 2008). Elevated levels of anxiousness not only affect one’s physical health but can diminish one’s day-to-day effectiveness. To date, the primary source of alleviation from anxiety is pharmaceutical medication. One of the most popular forms of pharmaceutical medications prescribed to treat anxiety is benzodiazepines (BDZ). However, BDZ’s are known to be highly addictive, causing negative side-effects and dependence in many patients. In recent years, individuals have been searching for alternative forms of treatment to find relief from their symptoms of anxiety. Overall the study suggested that, as compared to BDZ, cannabis can be a healthier and less harmful alternative form of treatment for adults living with anxiety.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


Patterns Of Marijuana Use And Health Impact: A Survey Among Older Coloradans

Hillary D. Lum, Kanika Arora, J. Alton Croker, Sara H. Qualls, Melissa Schuchman, Julie Bobitt, Gary Milavetz, and Brian Kaskie (June 2019)

The in-person or online survey was offered to community-dwelling older persons aged above 60 years. We assessed past-year marijuana use including recreational, medical, or both; methods of use; marijuana source; reasons for use; sociodemographic and health factors; and self-reported health. Of 274 respondents (mean age = 72.5 years, 65% women), 45% reported past-year marijuana use. Of these, 54% reported using marijuana both medically and recreationally. Using more than one marijuana method or preparation was common. Reasons for use included arthritis, chronic back pain, anxiety, and depression. Past-year marijuana users reported improved overall health, quality of life, day-to-day functioning, and improvement in pain. Odds of past-year marijuana use decreased with each additional year of age.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


Deficient Endocannabinoid Signaling In The Central Amygdala Contributes To Alcohol Dependence-Related Anxiety-Like Behavior And Excessive Alcohol Intake

Antonia Serrano, Francisco J. Pavon, Matthew W. Buczynski, Joel Schlosburg, Luis A. Natividad, Ilham Y. Polis, David G. Stouffer, Eric P. Zorrilla, Marisa Roberto, Benjamin F. Cravatt, Rémi Martin-Fardon, Fernando Rodriguez de Fonseca and Loren H. Parsons  (April 2018)

Negative emotional states that are associated with excessive alcohol intake, particularly anxiety-like states, have been linked to opponent processes in the central nucleus of the amygdala (CeA), affecting stress-related transmitters and monoamines. This study extends these observations to include endocannabinoid signaling in alcohol-dependent animals.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


Role Of Endocannabinoids In Innate Fear

Carsten T. Wotjak  (September 2017)

Most of our current knowledge about the neuroanatomical, neurochemical and molecular basis of fear results from Pavlovian fear conditioning. Much less is known about the underpinnings of innate fear responses, which share higher face validity with human anxiety disorders such as agoraphobia, acrophobia and panic attacks. I will introduce our recently established new test paradigms, which allow us to study acrophobic/agoraphobic behavior and the transition between passive and active fear as a function of threat proximity.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


Endocannabinoids, Stress, and Negative Affect

Anthony L. Berger, Angela M. Henricks, Matthew N. Hill, Ryan J. McLaughlin  (May 2017)

The stress response is an evolutionarily conserved mechanism to both allow an organism to cope with a threat and to restore homeostasis following exposure to a stressor. With respect to this response, preclinical research demonstrates that the endogenous cannabinoid (ECB) system constrains the hypothalamic-pituitary-adrenal axis and plays a major role in the habituation to stressors.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


Don’t Worry, Be Happy: Endocannabinoids And Cannabis At The Intersection Of Stress and Reward

Nora D. Volkow, Aidan J. Hampson, and Ruben D. Baler  (January 2017)

Cannabis enables and enhances the subjective sense of well-being by stimulating the endocannabinoid system (ECS), which plays a key role in modulating the response to stress, reward, and their interactions. However, over time, repeated activation of the ECS by cannabis can trigger neuroadaptations that may impair the sensitivity to stress and reward. This effect, in vulnerable individuals, can lead to addiction and other adverse consequences. The recent shift toward legalization of medical or recreational cannabis has renewed interest in investigating the physiological role of the ECS as well as the potential health effects, both adverse and beneficial, of cannabis. Here we review our current understanding of the ECS and its complex physiological roles.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


The Endocannabinoid System In Anxiety, Fear Memory And Habituation

S Ruehle, A Aparisi Rey, F Remmers, and B Lutz  (January 2012)

Evidence for the involvement of the endocannabinoid system (ECS) in anxiety and fear has been accumulated, providing leads for novel therapeutic approaches. In anxiety, a bidirectional influence of the ECS has been reported, whereby anxiolytic and anxiogenic responses have been obtained after both increases and decreases of the endocannabinoid tone. The recently developed genetic tools have revealed different but complementary roles for the cannabinoid type 1 (CB1) receptor on GABAergic and glutamatergic neuronal populations. This dual functionality, together with the plasticity of CB1 receptor expression, particularly on GABAergic neurons, as induced by stressful and rewarding experiences, gives the ECS a unique regulatory capacity for maintaining emotional homeostasis.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.


Cannabidiol (CBD) Reduces Anxiety-Related Behavior In Mice Via An FMRP1-Independent Mechanism

Jerzy Zieba, Duncan Sinclair, Terri Sebree, Marcel Bonn-Miller, Donna Gutterman, Steven Siegeld and Tim Karl (May 2019)

Fragile X Syndrome is a neurodevelopmental disorder which affects intellectual, social and physical development due to mutation of the Fragile X mental retardation 1 (FMR1) gene. The resultant loss of Fragile X mental retardation protein can be modelled by Fmr1 gene knockout (KO) in mice. The current study investigated the behavioural effects of cannabidiol (CBD; a non-psychoactive phytocannabinoid) in male Fmr1 KO mice as a preclinical model for therapeutic discovery.

Important Notice

If you proceed to article you will be leaving the CB1 Capital Management website to access a website hosted by a party unrelated to CB1 Capital Management. CB1 Capital Management assumes no responsibility for the accuracy of any of these studies nor does CB1 assume any obligation to update any of these studies based on subsequent research.