Efficacy of Sublingual 5-MeO-DMT for Reducing Anxiety and Depression in MCI

NCT ID: NCT06812221

Last Updated: 2025-04-09

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE1/PHASE2
• Total Enrollment: 20 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2024-12-15
• Study Completion Date: 2025-03-15

Brief Summary

This Phase I/II clinical trial aims to test the effectiveness of a new sublingual formulation of 5-MeO-DMT in reducing symptoms of anxiety, depression, and cognitive decline in individuals with mild to moderate Alzheimer's disease. The study will include participants who have a Clinical Dementia Rating (CDR) score between 0.5 and 1, indicating mild to moderate cognitive impairment, and who meet specific educational and cognitive criteria. Participants must have an ACE-III score of ≤86 for individuals with a high level of education (≥12 years) or <62 for those with a low educational level (≤12 years). Additionally, participants must show moderate to high levels of anxiety, as indicated by the State-Trait Anxiety Inventory (STAI), with STAI-S (State) scores ≥20 for men and ≥23 for women, and STAI-T (Trait) scores ≥20 for men and ≥26 for women. Participants also need to exhibit moderate to severe depressive symptoms, as indicated by a Beck Depression Inventory (BDI) score of ≥21.

To ensure that participants are cognitively functional but showing signs of impairment, they are assessed with the CDR and ADLQ scales to confirm they can maintain independence in daily activities. All participants must have scores above the threshold on cognitive screening tests like the ACE III and IFS, ensuring no significant cognitive impairment at the baseline.

The study will measure the effects of 5-MeO-DMT through a range of cognitive and psychiatric assessments:

Cognitive Assessments: These include the Rey Auditory Verbal Learning Test (RAVLT) for episodic memory, the Trail Making Test (TMT) for attention and cognitive flexibility, the Semantic and Phonological Fluency Test (SFT-FAS) for verbal fluency, the Paced Auditory Serial Addition Test (PASAT) for processing speed, and the Digit Span Subtests (DSS) for attention and working memory. These tests will provide valuable insights into how 5-MeO-DMT affects cognitive functions.

Psychiatric Assessments: These will assess symptoms of suicidal ideation (SSI), mood (BDI II), anxiety (STAI), and mindfulness (FFMQ), as well as self-reported cognitive complaints (CQC). These evaluations will help determine the psychological and emotional impact of 5-MeO-DMT on participants.

In addition, the study will include biochemical assessments such as microalbuminuria, blood glucose levels, liver and kidney function, cholesterol, and several biomarkers of inflammation. Cardiovascular evaluations will also be conducted during the trial, ensuring comprehensive monitoring of potential side effects.

This structured approach will help researchers assess the cognitive and psychological effects of 5-MeO-DMT in individuals with mild to moderate Alzheimer's disease. By focusing on participants with elevated anxiety, depression, and early cognitive decline, this trial aims to provide insights into the therapeutic potential of 5-MeO-DMT for neurodegenerative conditions.

Detailed Description

This Phase I/II clinical trial is designed to rigorously evaluate the efficacy of a novel sublingual formulation of 5-MeO-DMT in reducing symptoms of anxiety, depression, and cognitive decline in individuals diagnosed with mild to moderate Alzheimer's disease. The trial will employ a randomized, double-blind, placebo-controlled design, considered the gold standard in clinical research, to ensure unbiased and reliable results. By blinding both participants and investigators to treatment allocations, the study aims to generate robust data on the therapeutic potential of 5-MeO-DMT in this specific patient population.

Participants will be randomly assigned to one the placebo group or to the groups receiving 6 mg 5-MeO-DMT. Each dose group will include 10 participants, with a total of 20 volunteers enrolled. The dosing regimen consists of one sublingual administration per week over four consecutive weeks, allowing the study to assess both immediate and cumulative effects of 5-MeO-DMT on cognitive, mood, and anxiety symptoms.

Outcome Measures and Assessments: The primary outcome measure will focus on evaluating changes in cognitive function, mood, and anxiety symptoms, using a comprehensive set of neuropsychological and psychiatric assessments at multiple time points throughout the trial. Key cognitive assessments will include the Clinical Dementia Rating (CDR), Activities of Daily Living Questionnaire (ADLQ), and the Addenbrooke's Cognitive Examination III (ACE-III). These scales will provide a detailed overview of cognitive decline and the ability of 5-MeO-DMT to potentially mitigate these effects. Additionally, the Ineco Frontal Screening (IFS) will be administered to assess frontal lobe functioning.

Key psychiatric assessments will include the State-Trait Anxiety Inventory (STAI), Beck Depression Inventory (BDI), and Suicidal Ideation Scale (SSI), which are validated tools for measuring anxiety, depression, and suicidal thoughts. These assessments will help evaluate the emotional and psychological impact of 5-MeO-DMT on participants with Alzheimer's-related cognitive impairment.

Neurocognitive Assessments: To further evaluate the impact of 5-MeO-DMT on cognitive function, a battery of neurocognitive tests will be conducted. These will include the Rey Auditory Verbal Learning Test (RAVLT) to assess episodic memory, the Trail Making Test (TMT) for attention and cognitive flexibility, and the Digit Span Subtests (DSS) to measure working memory and attention. These tests will be administered at baseline, during dosing, and at the conclusion of the study (week 5) to monitor changes in cognitive function across time.

Study Design and Safety Measures: Safety will be closely monitored throughout the study. Regular assessments will be conducted to track vital signs, including heart rate, blood pressure, and temperature. Electrocardiograms (ECGs) will be taken to monitor any potential cardiovascular effects. Biochemical markers will be measured to assess any systemic effects, and psychological evaluations will be conducted to identify any changes in emotional or cognitive states that may signal adverse reactions or therapeutic benefits of the drug.

The findings from this study will offer valuable insights into the potential efficacy of sublingual 5-MeO-DMT in improving cognitive function and reducing symptoms of anxiety and depression in individuals with mild to moderate Alzheimer's disease. By focusing on participants with cognitive impairment and comorbid emotional symptoms, this trial aims to determine whether 5-MeO-DMT could be a beneficial treatment option for individuals suffering from both neurodegeneration and mental health disorders. The results will contribute to the growing body of evidence supporting the use of psychedelic compounds in treating cognitive decline, anxiety, and depression, providing new possibilities for managing Alzheimer's disease.

Conditions

Mild Cognitive Impairment; Anxiety State; Depression Anxiety Disorder

Study Design

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

Study Groups

Experimental: Arm 1: 6 mg 5-MeO-DMT Sublingual Administration

In this arm, participants will receive a single sublingual dose of 6 mg of 5-MeO-DMT once a week for four consecutive weeks. This dosage aims to assess the potential therapeutic effects of 5-MeO-DMT in reducing anxiety and depression symptoms in individuals with Mild Cognitive Impairment (MCI). The 6 mg dose is selected to avoid inducing strong psychedelic effects, focusing on emotional well-being improvement. Participants will undergo standardized psychiatric assessments, such as STAI and BDI II, to measure changes in mood and anxiety levels. Additionally, neurocognitive assessments, including the Phonological Verbal Fluency Test (FAS), Paced Auditory Serial Addition Test (PASAT), and Digit Span Scale (DSS), will evaluate cognitive effects on executive function, processing speed, and working memory. Participants will be monitored closely for any adverse effects, changes in vital signs, and alterations in emotional or cognitive states throughout the study.

Group Type: EXPERIMENTAL

Sublingual administration

Intervention Type: DRUG

Participants will receive a sublingual dose of 5-MeO-DMT or placebo, once a week for four consecutive weeks.

Electroencephalography

Intervention Type: PROCEDURE

Conducting baseline electroencephalography and during the consumption of the corresponding dose.

Biochemical mesurements

Intervention Type: DIAGNOSTIC_TEST

Biochemical determinations will be performed to assess hematological, renal, hepatic, cardiac, and cellular lysis functions. The biochemical markers that will be measured include red blood cells, hematocrit, hemoglobin, glycated hemoglobin, white blood cells, microalbuminuria (urine albumin/creatinine ratio), and various serum markers such as cortisol, glucose, urea, serum creatinine, total cholesterol, HDL, LDL, triglycerides, AST, ALT, lactate dehydrogenase (LDH), creatine kinase (CK), CK-MB, and C-reactive protein.

Acute Subjective Ratings of Psychedelic Effects

Intervention Type: DIAGNOSTIC_TEST

To determine the intensity of the acute effects experienced by subjects, retrospective ratings will be collected 1 hour after 5-MeO-DMT or placebo exposure. Subjective ratings will include the Peak Experience Scale (PES), the Ego Dissolution Inventory (EDI), and the Mystical Experiences Questionnaire (MEQ).

Vital signs

Intervention Type: DIAGNOSTIC_TEST

Vital signs, including blood pressure, heart rate, oxygen saturation, respiration rate, body temperature, and electrocardiograms (ECGs), will be monitored over the six weeks of the treatment.

Cognitive Assessments

Intervention Type: DIAGNOSTIC_TEST

Cognitive assessments will evaluate the effects of sublingual 5-MeO-DMT on cognitive functions. Participants will complete the Phonological Verbal Fluency Test (FAS) to assess executive function, the Paced Auditory Serial Addition Test (PASAT) to evaluate processing speed, and the Digit Span Scale (DSS) to measure attention span and working memory. These tests will be administered at baseline, during treatment, and post-treatment to monitor any cognitive changes in response to either a 6 mg dose of 5-MeO-DMT or placebo. This will help determine how the intervention may affect cognitive processing, memory, and attention.

Psychiatric Assessments

Intervention Type: DIAGNOSTIC_TEST

Psychiatric evaluations will be conducted to assess the emotional and psychological effects of sublingual 5-MeO-DMT. Participants will complete the Beck Depression Inventory II (BDI II) to measure mood and depressive symptoms, the State-Trait Anxiety Inventory (STAI) to evaluate state anxiety, and the Depression, Anxiety, and Stress Scale (DASS-21) to assess stress levels. Additionally, the Suicidal Ideation Scale (SSI) will be used to monitor any changes in suicidal ideation throughout the study. These psychiatric assessments will be administered at multiple time points during the study to evaluate the potential therapeutic effects of 5-MeO-DMT in improving mood, anxiety, and overall psychological well-being.

: Arm 2: Placebo Sublingual Administration

Participants will receive a placebo formulation that mirrors the appearance, taste, and administration method of the 5-MeO-DMT doses but contains no active ingredient. This group will serve as the comparator, allowing the effects of the active 5-MeO-DMT treatment to be evaluated. Participants will undergo the same psychiatric and neurocognitive assessments as those in the experimental arm, including the STAI, BDI II, DASS-21, and cognitive tests. The placebo group will provide essential baseline data on mood, anxiety, and cognitive function, helping to determine whether observed changes in the experimental arms are due to the active drug. Monitoring for adverse events and changes in emotional or cognitive states will also be conducted in this group. The differences between this group and the 5-MeO-DMT arms will help establish the efficacy of 5-MeO-DMT for improving mood and cognitive function in individuals with MCI.

Group Type: EXPERIMENTAL

Sublingual administration

Intervention Type: DRUG

Participants will receive a sublingual dose of 5-MeO-DMT or placebo, once a week for four consecutive weeks.

Electroencephalography

Intervention Type: PROCEDURE

Conducting baseline electroencephalography and during the consumption of the corresponding dose.

Biochemical mesurements

Intervention Type: DIAGNOSTIC_TEST

Biochemical determinations will be performed to assess hematological, renal, hepatic, cardiac, and cellular lysis functions. The biochemical markers that will be measured include red blood cells, hematocrit, hemoglobin, glycated hemoglobin, white blood cells, microalbuminuria (urine albumin/creatinine ratio), and various serum markers such as cortisol, glucose, urea, serum creatinine, total cholesterol, HDL, LDL, triglycerides, AST, ALT, lactate dehydrogenase (LDH), creatine kinase (CK), CK-MB, and C-reactive protein.

Acute Subjective Ratings of Psychedelic Effects

Intervention Type: DIAGNOSTIC_TEST

To determine the intensity of the acute effects experienced by subjects, retrospective ratings will be collected 1 hour after 5-MeO-DMT or placebo exposure. Subjective ratings will include the Peak Experience Scale (PES), the Ego Dissolution Inventory (EDI), and the Mystical Experiences Questionnaire (MEQ).

Vital signs

Intervention Type: DIAGNOSTIC_TEST

Vital signs, including blood pressure, heart rate, oxygen saturation, respiration rate, body temperature, and electrocardiograms (ECGs), will be monitored over the six weeks of the treatment.

Cognitive Assessments

Intervention Type: DIAGNOSTIC_TEST

Cognitive assessments will evaluate the effects of sublingual 5-MeO-DMT on cognitive functions. Participants will complete the Phonological Verbal Fluency Test (FAS) to assess executive function, the Paced Auditory Serial Addition Test (PASAT) to evaluate processing speed, and the Digit Span Scale (DSS) to measure attention span and working memory. These tests will be administered at baseline, during treatment, and post-treatment to monitor any cognitive changes in response to either a 6 mg dose of 5-MeO-DMT or placebo. This will help determine how the intervention may affect cognitive processing, memory, and attention.

Psychiatric Assessments

Intervention Type: DIAGNOSTIC_TEST

Psychiatric evaluations will be conducted to assess the emotional and psychological effects of sublingual 5-MeO-DMT. Participants will complete the Beck Depression Inventory II (BDI II) to measure mood and depressive symptoms, the State-Trait Anxiety Inventory (STAI) to evaluate state anxiety, and the Depression, Anxiety, and Stress Scale (DASS-21) to assess stress levels. Additionally, the Suicidal Ideation Scale (SSI) will be used to monitor any changes in suicidal ideation throughout the study. These psychiatric assessments will be administered at multiple time points during the study to evaluate the potential therapeutic effects of 5-MeO-DMT in improving mood, anxiety, and overall psychological well-being.

Interventions

Sublingual administration

Participants will receive a sublingual dose of 5-MeO-DMT or placebo, once a week for four consecutive weeks.

Intervention Type: DRUG

Electroencephalography

Conducting baseline electroencephalography and during the consumption of the corresponding dose.

Intervention Type: PROCEDURE

Biochemical mesurements

Biochemical determinations will be performed to assess hematological, renal, hepatic, cardiac, and cellular lysis functions. The biochemical markers that will be measured include red blood cells, hematocrit, hemoglobin, glycated hemoglobin, white blood cells, microalbuminuria (urine albumin/creatinine ratio), and various serum markers such as cortisol, glucose, urea, serum creatinine, total cholesterol, HDL, LDL, triglycerides, AST, ALT, lactate dehydrogenase (LDH), creatine kinase (CK), CK-MB, and C-reactive protein.

Intervention Type: DIAGNOSTIC_TEST

Acute Subjective Ratings of Psychedelic Effects

To determine the intensity of the acute effects experienced by subjects, retrospective ratings will be collected 1 hour after 5-MeO-DMT or placebo exposure. Subjective ratings will include the Peak Experience Scale (PES), the Ego Dissolution Inventory (EDI), and the Mystical Experiences Questionnaire (MEQ).

Intervention Type: DIAGNOSTIC_TEST

Vital signs

Vital signs, including blood pressure, heart rate, oxygen saturation, respiration rate, body temperature, and electrocardiograms (ECGs), will be monitored over the six weeks of the treatment.

Intervention Type: DIAGNOSTIC_TEST

Cognitive Assessments

Cognitive assessments will evaluate the effects of sublingual 5-MeO-DMT on cognitive functions. Participants will complete the Phonological Verbal Fluency Test (FAS) to assess executive function, the Paced Auditory Serial Addition Test (PASAT) to evaluate processing speed, and the Digit Span Scale (DSS) to measure attention span and working memory. These tests will be administered at baseline, during treatment, and post-treatment to monitor any cognitive changes in response to either a 6 mg dose of 5-MeO-DMT or placebo. This will help determine how the intervention may affect cognitive processing, memory, and attention.

Intervention Type: DIAGNOSTIC_TEST

Psychiatric Assessments

Psychiatric evaluations will be conducted to assess the emotional and psychological effects of sublingual 5-MeO-DMT. Participants will complete the Beck Depression Inventory II (BDI II) to measure mood and depressive symptoms, the State-Trait Anxiety Inventory (STAI) to evaluate state anxiety, and the Depression, Anxiety, and Stress Scale (DASS-21) to assess stress levels. Additionally, the Suicidal Ideation Scale (SSI) will be used to monitor any changes in suicidal ideation throughout the study. These psychiatric assessments will be administered at multiple time points during the study to evaluate the potential therapeutic effects of 5-MeO-DMT in improving mood, anxiety, and overall psychological well-being.

Intervention Type: DIAGNOSTIC_TEST

Eligibility Criteria

Inclusion Criteria

• Adults aged 40 to 80 years
• Diagnosis of mild to moderate Alzheimer's disease
• Clinical Dementia Rating (CDR) score between 0.5 and 1
• ACE-III score ≤ 86 for individuals with high educational levels (≥12 years of schooling)
• ACE-III score < 62 for individuals with low educational levels (≤12 years of schooling)
• Moderate to high levels of anxiety, as defined by:
• State-Trait Anxiety Inventory (STAI-S) State score ≥20 for men, ≥23 for women
• STAI-Trait score ≥20 for men, ≥26 for women
• Mild to moderate depressive symptoms, as indicated by a Beck Depression Inventory (BDI) score ≥21
• Must provide written informed consent to participate in the study

Exclusion Criteria

• Liver dysfunction
• Cardiovascular conditions (e.g., uncontrolled hypertension, angina, significant ECG abnormalities, recent transient ischemic attack or stroke, peripheral/pulmonary vascular disease without active claudication).
• Blood pressure >140 mmHg systolic or >90 mmHg diastolic
• Epilepsy or history of seizures
• Kidney failure
• Insulin-dependent diabetes
• Chronic obstructive pulmonary disease (COPD)
• Increased intracranial or cerebrospinal pressure
• Hyperthyroidism
• Psychotic symptoms or family history of psychotic disorders
• Prodromal symptoms of schizophrenia or dissociative identity disorder
• Severe depression or anxiety requiring immediate treatment with antidepressants or daily anxiolytics, particularly in cases with suicidal ideation
• Medications: Regular use of psychoactive medications, including benzodiazepines, serotonin-active medications (e.g., ondansetron), or monoamine oxidase inhibitors (MAOIs)
• Drug Interactions: Use of potent metabolic inducers or inhibitors, such as: Inducers: rifampicin, anticonvulsants (e.g., carbamazepine, phenytoin), nevirapine, efavirenz, taxol, dexamethasone. Inhibitors: HIV protease inhibitors, itraconazole, ketoconazole, erythromycin, clarithromycin, troleandomycin.

• Minimum Eligible Age: 40 Years
• Maximum Eligible Age: 80 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Hospital Descentralizado Dr. Marcial V. Quiroga

UNKNOWN

Sponsor Role: collaborator

Universidad Católica de Cuyo

UNKNOWN

Sponsor Role: collaborator

Biomind Labs Inc.

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Martin A. Bruno, PhD

Role: STUDY_CHAIR

Biomind Labs Inc.

Locations

Hospital Descentralizado Dr. Marcial V. Quiroga.

San Juan, Rivadavia, Argentina

Countries

Argentina

Related Links

https://www.biomindlabs.com/

Biomind Labs is developing the next generation of pharmaceuticals to treat patients suffering from neurological disorders. This unique approach targets the original and initial drivers of the diseases.

Other Identifiers

BMND08-03

Identifier Type: -

Identifier Source: org_study_id