Journal of psychoactive drugs最新文献

This study examined patient perspectives on psilocybin therapy, specifically their acceptance and views on the therapeutic benefits of both hallucinogenic and non-hallucinogenic forms. A cross-sectional survey was conducted among psychiatric patients aged 18-65 at a community mental health center, assessing their attitudes, knowledge, and acceptance of psilocybin therapy. In total, 62.4% of the participants expressed openness to hallucinogenic psilocybin (p = .009), while 60.4% were open to non-hallucinogenic forms (p = .023). Patients with major depressive disorder preferred hallucinogenic therapy more (p = .010), while those with borderline personality disorder (BPD) (p = .030) and post-traumatic stress disorder (PTSD) (p = .035) favored non-hallucinogenic options, possibly due to concerns about the intensity of hallucinogenic experiences. Individuals with substance use disorder (SUD) demonstrated a greater acceptance of both hallucinogenic (p = .007) and non-hallucinogenic forms (p = .046) than individuals without SUD. These findings suggest that societal stigma is not a significant barrier to psilocybin therapy and that non-hallucinogenic forms may provide a more accessible option for certain patient groups. Understanding patient perspectives on psilocybin therapy, including vulnerability to adverse hallucinogenic experiences, can inform personalized and effective treatments for resistant conditions.

Neurobiological effects and psychological models propose that psychedelics may promote psychological flexibility, suggesting a transdiagnostic effect by disrupting maladaptive patterns. The objective of this study was therefore to investigate the determinants of psychological flexibility change following a psychedelic use. This retrospective online survey included French individuals who had undergone a significant psychedelic experience. Participants were assessed for mystical experience intensity with the MEQ-30, and psychological flexibility via the AAQ-II, at three retrospective time points. Data analysis comprised descriptive statistics, correlation analysis, ANCOVA to evaluate the impact of psychedelic use variables on psychological flexibility, and linear regression to identify predictors of psychological flexibility changes. Data showed a positive correlation between mystical experience intensity and improvements in psychological flexibility, especially 1-month post-experience (p < .01), and during the 6 months before the survey (p < .01). Key predictors of changes in psychological flexibility included baseline AAQ-II scores, MEQ total scores and frequent psychedelic use, underlining the interaction between personal and experiential factors in determining therapeutic outcomes. In conclusion, this study highlights how the intensity of mystical experience and baseline psychological flexibility may be the key factors influencing changes in psychological flexibility post-psychedelic use, suggesting a potential therapeutic value.

People of Color have been under-included in psychedelic-assisted therapy (PAT) research. Researchers have argued that systemic issues resulting in harms to communities of color like the War on Drugs and recurrent exposure to discrimination in healthcare settings may reduce their willingness to engage in PAT research. However, there are no empirical data regarding People of Color's trust or willingness in using psychedelics with support of trained healthcare providers. Therefore, we analyzed data from a large-scale survey of people using psychedelics to explore interactions between People of Color and healthcare providers in North America. The sample included 3,547 White people, 448 People of Color, and 377 Multiracial people. A lower proportion of People of Color consumed psychedelics with the support of a trained provider but an equal proportion had disclosed psychedelic use to primary care providers. Further, People of Color were equally motivated to use psychedelics with a trained healthcare provider, used psychedelics to treat similar issues, and similarly reported psychedelics as effective with other groups. Our findings suggest that lack of trust may not fully explain the underrepresentation of People of Color in PAT research, and future studies should investigate other barriers to People of Color's inclusion in PAT research.

Ibogaine, a non-classical psychedelic, has gained increasing attention as a potential treatment for substance use disorders (SUD); however, a lack of commercial interest and safety-related concerns limit its clinical development. This cross-sectional study investigates the current landscape of clinical trials involving ibogaine, a non-classical psychedelic, focusing on its safety and efficacy. We extracted data from ClinicalTrials.Gov, EU Clinical Trials (https://euclinicaltrials.eu/), the EU Clinical Trials Register (https://www.clinicaltrialsregister.eu/), and the International Clinical Trials Registry Platform (World Health Organization). After rigorous screening and deduplication, we analyzed nine trials. Our findings revealed considerable variability in methodologies, including fixed-dose and ascending-dose designs, diverse inclusion and exclusion criteria, and differing primary and secondary outcomes. Early-phase trials dominate, primarily focusing on pharmacokinetics, withdrawal symptom reduction, and safety monitoring. Key findings indicate significant differences in how safety concerns are addressed, particularly regarding ibogaine's cardiovascular risk. While preliminary evidence suggests potential therapeutic benefits, the absence of large-scale, late-phase trials limits definitive conclusions. Our study underscores the need for a standardized clinical framework to ensure reliable assessments of ibogaine's efficacy and safety. Lessons from research on classical psychedelics, and MDMA could help improve trial design and reduce issues related to blinding and expectancy bias.

Research on the positive psychological effects of psychedelics has surged since the early 2000s, particularly regarding increased well-being. Studies have demonstrated how psychedelic-occasioned mystical experiences play a key role in their positive effects, which has prompted an interest in the emotion of awe in the psychedelic context due to its similar phenomenology and associated benefits. This study examined 60 individuals following their visitation to at least one ayahuasca retreat in a country where ayahuasca use was legal or retreats are approved to use ayahuasca, hypothesizing that not only high levels of awe but mystical experiences characterized by high levels of awe would be significantly associated with higher well-being. Neither hypothesis was supported: higher levels of mystical experience with lower perceived vastness, a facet of awe, was significantly associated with higher well-being, possibly highlighting the synergistic relationship between mystical experiences and perceived vastness on well-being. The study has implications for future research, particularly in terms of understanding how the perceived vastness of a person's psychedelic experience may be modulated to mitigate distress and foster well-being.

This study explores the intentions and experiences of individuals seeking abstinence from heroin use through voluntary rehabilitation, as well as challenges to achieving a positive outcome. This study used semi-structured interviews with 37 individuals (22 female) who used heroin and utilized rational choice theory to guide data analysis. This study found that participants tried both medical and non-medical treatment methods but faced structural and personal barriers that hindered their efforts. While ceasing heroin use would presumably benefit their health and family relationships, individuals perceived the physical, psychological, and social costs of abstinence as outweighing the potential benefits and ultimately resumed heroin use. More targeted voluntary rehabilitation programs addressing specific structural and personal barriers are therefore recommended to benefit Chinese people seeking abstinence from drug use.

Despite various interventions available for substance use disorders, relapse rates remain substantial and, therefore, alternative strategies for attenuating dependence are needed. This study examined the associations between exercise frequency, illicit substance use, and dependence severity among a large sample of people who use drugs. The study utilized data from the Global Drug Survey 2018 (N = 57,110) to investigate the relationship between exercise frequency, illicit substance use, and substance dependence severity. Binomial regressions were employed to examine the relationship between exercise and SDS scores for 9 drugs. Greater exercise frequency correlated with reduced severity of substance dependence for specific drugs: cannabis (χ2 = 14.75, p < .001), MDMA (χ2 = 4.73, p = .029), cocaine (χ2 = 8.37, p = .015), amphetamine powder (χ2 = 6.39, p = .041), and methamphetamine (χ2 = 15.17, p < .001). These findings suggest a potential link between exercise and reduced substance use dependency. Further research is needed to understand the complex dynamics between exercise and substance use, considering potential bidirectional relationships and concurrent factors.

The standard protocol in addiction treatment/pain management is to conduct immunoassay screens for major drugs subject to misuse, followed by confirmatory testing of positive results. However, this may miss unscreened or rarely screened drugs that could pose risks, especially to polydrug users. We sought to determine the prevalences of unscreened/rarely screened drugs in a sample of individuals misusing drugs in 7 U.S. states, and to compare the results of urine vs. oral testing for these drugs by direct-to-definitive liquid chromatography/tandem mass spectrometry (LC-MS-MS). The five drugs with the highest prevalences were: gabapentin (16.8%), quetiapine (6.2%), chlorpheniramine (5.3%), hydroxyzine (4.9%), and ephedrine (3.5%). All have clinical significance as indicated by severity of possible side effects, interactions with other drugs, and/or misuse potential. Drugs were generally detected more frequently in oral fluid than urine, but gabapentin was more frequently detected in urine. The prevalences of the included drugs seem high enough, and their clinical significance important enough, to warrant consideration of expanding clinical drug test panels, either by direct-to-definitive testing or the addition of selected immunoassay screens when available. Oral fluid was usually more suitable than urine as the test matrix, given the higher rates of detection in oral fluid for most substances included in this study.

Credibility and expectancy are important aspects of therapy/treatment processes. We aimed to perform cross-cultural validation and examine the psychometric properties of the Credibility/Expectancy Questionnaire (CEQ). Ninety-one patients with opioid use disorder from Tobacco, Alcohol, and Drug Addiction Treatment Program were included in the study. Sociodemographic data form, CEQ, Beck Depression Inventory (BDI), State and Trait Anxiety Inventory (STAI), and Attitudes Toward Seeking Psychological Professional Help Scale-Short Form (ATSPPHS-SF) were filled out by participants. Confirmatory factor analyses showed that CEQ has two factors in our sample, similar to the original version. Reliability analyses showed that CEQ has a high internal consistency and test-retest reliability. Regarding convergent validity results, CEQ was correlated with ATSPPHS-SF. No significant correlation was found between CEQ and BDI and STAI regarding discriminant validity results. In conclusion, the Turkish version of CEQ is a valid, reliable scale and could be used in patients with opioid use disorder. In patients with opioid use disorder, we contributed to the addiction literature by adapting a short and effective survey that measures trust and expectation.