Effects of Psilocybin in Major Depressive Disorder

NCT ID: NCT03181529

Last Updated: 2021-12-15

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE2
• Total Enrollment: 27 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2017-08-10
• Study Completion Date: 2020-12-02

Brief Summary

The proposed pilot study will assess whether people with major depressive disorder experience psychological and behavioral benefits and/or harms from psilocybin. This study will investigate acute and persisting effects of psilocybin on depressive symptoms and other moods, attitudes, and behaviors. The primary hypothesis is that psilocybin will lead to rapid and sustained antidepressant response, as measured with standard depression rating scales.

Conditions

Major Depressive Disorder

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: SINGLE

Study Groups

Immediate Treatment

Participants will begin psilocybin intervention immediately after study enrollment.

Group Type: EXPERIMENTAL

Psilocybin

Intervention Type: DRUG

Participants will receive a moderately high psilocybin dose in the first session and will receive either a moderately high or high psilocybin dose in the second session.

Delayed Treatment

Participants will begin the psilocybin intervention 8 weeks after study enrollment.

Group Type: EXPERIMENTAL

Psilocybin

Intervention Type: DRUG

Participants will receive a moderately high psilocybin dose in the first session and will receive either a moderately high or high psilocybin dose in the second session.

Interventions

Psilocybin

Participants will receive a moderately high psilocybin dose in the first session and will receive either a moderately high or high psilocybin dose in the second session.

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

• 21 to 75 years old
• Have given written informed consent
• Have at least a high-school level of education or equivalent (e.g. GED).
• Have a confirmed Diagnostic Statistical Manual (DSM-5) diagnosis of Major Depressive Disorder and currently experiencing a major depressive episode.
• No antidepressant medication for at least 2 weeks (4 weeks for fluoxetine) prior to enrollment.
• Concurrent psychotherapy is allowed if the type and frequency of the therapy has been stable for at least two months prior to screening and is expected to remain stable during participation in the study.
• Be medically stable as determined by screening for medical problems via a personal interview, a medical questionnaire, a physical examination, an electrocardiogram (ECG), and routine medical blood and urinalysis laboratory tests
• Agree to consume approximately the same amount of caffeine-containing beverage (e.g., coffee, tea) that he/she consumes on a usual morning, before arriving at the research unit on the mornings of drug session days. If the participant does not routinely consume caffeinated beverages, he/she must agree not to do so on session days.
• Agree to refrain from using any psychoactive drugs, including alcoholic beverages and nicotine, within 24 hours of each drug administration. The exception is caffeine. Participants will be required to be non-smokers.
• Agree not to take any Pro re nata (PRN) medications on the mornings of drug sessions
• Agree not to take sildenafil (Viagra®), tadalafil, or similar medications within 72 hours of each drug administration.
• Agree that for one week before each drug session, he/she will refrain from taking any nonprescription medication, nutritional supplement, or herbal supplement except when approved by the study investigators. Exceptions will be evaluated by the study investigators and will include acetaminophen, non-steroidal anti-inflammatory drugs, and common doses of vitamins and minerals.

Exclusion Criteria

• Women who are pregnant (as indicated by a positive urine pregnancy test assessed at intake and before each drug session) or nursing; women who are of child-bearing potential and sexually active who are not practicing an effective means of birth control.
• Cardiovascular conditions: coronary artery disease, stroke, angina, uncontrolled hypertension, a clinically significant ECG abnormality (e.g., atrial fibrilation), prolonged QTc interval (i.e., QTc > 450 msec), artificial heart valve, or Transient Ischemic Attack (TIA) in the past year
• Epilepsy with history of seizures
• Insulin-dependent diabetes; if taking oral hypoglycemic agent, then no history of hypoglycemia
• Currently taking psychoactive prescription medication on a regular (e.g., daily) basis
• Currently taking on a regular (e.g., daily) basis any medications having a primary centrally-acting serotonergic effect, including Mono-Amine Oxidase Inhibitors (MAOIs). For individuals who have intermittent or PRN use of such medications, psilocybin sessions will not be conducted until at least 5 half-lives of the agent have elapsed after the last dose.
• More than 25% outside the upper or lower range of ideal body weight according to Metropolitan Life height and weight table

• Current antidepressant use
• Current or past history of meeting DSM-5 criteria for schizophrenia spectrum or other psychotic disorders (except substance/medication-induced or due to another medical condition), or Bipolar I or II Disorder
• Current or history within one year of meeting DSM-5 criteria for a moderate or severe alcohol, tobacco, or other drug use disorder (excluding caffeine)
• Have a first or second-degree relative with schizophrenia spectrum or other psychotic disorders (except substance/medication-induced or due to another medical condition), or Bipolar I or II Disorder
• Has failed to respond to electroconvulsive therapy during the current major depressive episode
• Has a psychiatric condition judged to be incompatible with establishment of rapport or safe exposure to psilocybin

• Head trauma
• Claustrophobia incompatible with scanning
• Cardiac pacemaker
• Implanted cardiac defibrillator
• Aneurysm brain clip
• Inner ear implant
• Prior history as a metal worker and/or certain metallic objects in the body
• History of clinically significant vertigo, seizure disorder, middle ear disorder, or double vision
• Poor vision not adequately corrected (in order to complete emotional processing task)

• Minimum Eligible Age: 21 Years
• Maximum Eligible Age: 75 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Johns Hopkins University

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Roland R Griffiths, PhD

Role: PRINCIPAL_INVESTIGATOR

Johns Hopkins University

Locations

Behavioral Pharmacology Research Unit, Johns Hopkins Bayview Medical Center

Baltimore, Maryland, United States

Countries

United States

References

Levin AW, Lancelotta R, Sepeda ND, Gukasyan N, Nayak S, Wagener TL, Barrett FS, Griffiths RR, Davis AK. The therapeutic alliance between study participants and intervention facilitators is associated with acute effects and clinical outcomes in a psilocybin-assisted therapy trial for major depressive disorder. PLoS One. 2024 Mar 14;19(3):e0300501. doi: 10.1371/journal.pone.0300501. eCollection 2024.

Reference Type: DERIVED

PMID: 38483940 (View on PubMed)

Davis AK, Barrett FS, May DG, Cosimano MP, Sepeda ND, Johnson MW, Finan PH, Griffiths RR. Effects of Psilocybin-Assisted Therapy on Major Depressive Disorder: A Randomized Clinical Trial. JAMA Psychiatry. 2021 May 1;78(5):481-489. doi: 10.1001/jamapsychiatry.2020.3285.

Reference Type: DERIVED

PMID: 33146667 (View on PubMed)

Provided Documents

Document Type: Study Protocol and Statistical Analysis Plan

View Document

Other Identifiers

IRB00101821

Identifier Type: -

Identifier Source: org_study_id