What is the typical treatment regimen for psychedelic agents?
It is hard to speak of a “treatment regimen” in agents that are not used in clinical practice. Ongoing clinical trials with psilocybin generally involve one or two 6- to 8-hour sessions involving the oral administration of a moderately high dose under psychologically supported conditions.
Based on the current evidence base, which agents show the most promise?
Psilocybin is currently the most promising classic psychedelic undergoing clinical trials.
Do psychedelics have to be administered in a controlled setting in order to be effective?
Although many people have had meaningful experiences whether inside or outside of a controlled setting, there are serious potential risks associated with use of psilocybin and other classic psychedelics. The safety of psilocybin has been established in clinical studies in which participants have been carefully screened physically and psychologically, are psychologically prepared before their first session, and are psychologically supported during and after sessions. In vulnerable individuals, psilocybin has been associated with enduring psychiatric problems and sometimes persisting visual perceptual conditions. When taken in uncontrolled conditions, classic psychedelics can produce confusion and disorientation resulting in behavior dangerous to the participant and others – including life-threatening risk. Thus, for safety reasons, the optimal environment for using these agents is in a controlled setting.
Do results differ between patients who have used psychedelic agents previously and those who have not?
We have not found any difference between psychedelic-naive volunteers and those who have used psychedelics in the past.
Do you provide patient education prior to treatment initiation?
All of our study participants are thoroughly screened for medical concerns or mental health history such as psychosis, which would preclude their participation. They are educated about the effects of these agents and what they might expect and typically receive several hours of psychological preparation before the first session. They are also provided with psychological support after sessions. Additionally, we spend time developing trust and rapport prior to the first session.
How durable are the effects of psychedelic treatment?
Studies in patients and healthy participants suggest that the positive effects of psilocybin are long lasting, with most individuals reporting positive changes in moods, attitudes, and behavior that they attribute to psilocybin and which endure months or years after the session. The qualities of the acute session experience can vary widely ranging from experiences of transcendence or psychological insight to experiences of intense anxiety or fear.
An enduring shift in worldview and sense of self, as well as psychological insight, may increase psychological flexibility, thereby allowing individuals to subsequently avoid maladaptive patterns of behavior or thought and to make more healthy choices.
Our research has shown that the benefits of these experiences can last as long as 14 months, often longer, and that many participants characterize their psilocybin experience as among the most profound and personally meaningful experience of their lives.
Do participants experience any adverse effects? If so, how are they managed?
Sometimes, despite all the preparation, screening, and support we provide, some participants can have frightening experiences, such as fear and anxiety during the session. When that occurs, it is often shorted lived. The psychological preparation we provide before the session and the psychological support we provide during the session are important for managing such effects.
We provide support and encourage participants to stay with that experience, which may open to experiences of deep meaning or insight. A number of people report that these psychologically challenging states are a valuable part of the overall experience.
We conducted a survey of roughly 2,000 people who took high doses of psilocybin mushrooms and then had a challenging experience. About 10% reported they put themselves or others at risk of physical harm. Of more concern, of those whose experience occurred more than 1 year before, 8% sought treatment for enduring psychological symptoms. These findings underscore potential risks of psilocybin use but do not provide an estimate of the actual incidence of such effects.
Importantly, in our research at Johns Hopkins, we have not observed such effects in over 700 sessions that we have conducted with almost 400 participants, likely because we thoroughly screen and prepare participants and support them after they have completed the study. The potential for serious lasting harm represents a concern and points to the importance of adequate screening and aftercare.
What are the implications for future therapeutics?
We are living in exciting times, in terms of psychedelic research. The potential for a single treatment with a classic psychedelic to produce rapid and sustained therapeutic effects, possibly across a range of psychiatric conditions, is unprecedented in psychiatry. The effect appears to be an “inverse PTSD effect.”
In PTSD, a single exposure to a traumatic event can rewire the nervous system to the point that it produces enduring harm and toxicity. In the case of psychedelics, a single exposure appears to have enduring positive effects in worldview, mood, attitude, behavior, and overall life satisfaction. We can look forward to continued growth and expansion of this research including the refinement of protocols for a variety of therapeutic indications and to the development of a variety of new classic psychedelic compounds.
A version of this article originally appeared on Medscape.com.