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Multiple Ascending Dose Noribogaine PK/PD in Healthy Volunteers

A Randomized, Double-blind, Placebo-controlled Trial to Evaluate Multiple Dose Pharmacokinetics, Pharmacodynamics, Safety, and Tolerability of Ascending Doses of Noribogaine in Healthy Volunteers.

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06480981
Enrollment
55
Registered
2024-07-01
Start date
2024-06-20
Completion date
2025-01-13
Last updated
2026-01-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pharmacokinetics

Brief summary

This trial will be a randomised, double-blind, sequential-group, multiple-dose, placebo-controlled, dose escalation trial to characterise the pharmacokinetics (PK), pharmacodynamics (PD) and safety of noribogaine in healthy adult participants.

Interventions

DRUGNoribogaine

Noribogaine capsules

Sponsors

DemeRx NB
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
OTHER
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 45 Years
Healthy volunteers
Yes

Inclusion criteria

* Ability to provide written, personally signed, and dated informed consent. * Healthy male and female participants between the ages of 18 to 45 inclusive. * BMI 18 - 30 kg/m2. * Non- or ex-smoker. * Normal ECG findings i.e. QTcF interval ≤ 450 ms and normal morphology that would permit accurate assessment of the QT interval. * Participants must agree to use highly

Exclusion criteria

* History of, or concurrent clinically significant cardiovascular, dysautonomia, gastrointestinal, renal, hepatic, neurologic, hematologic, endocrine, oncologic, pulmonary, immunologic or psychiatric, or any other condition which, in the opinion of the Investigator, would jeopardize the safety of the participant or impact the validity of the study. * Family history in first degree relatives for unknown and/or known arrhythmia-related cardiac events, cardiomyopathy, syncope, long QT syndrome, Brugada's syndrome, sudden death attributed to cardiac causes, and familial cardiac channelopathies. * Any clinically important abnormalities in rhythm, conduction or morphology of resting ECG that may interfere with interpretation of QTc interval changes. * Previous or current alcohol, or other drug dependence.

Design outcomes

Primary

MeasureTime frameDescription
Pharmacokinetics t1/2 Day 8Day 8Determination of elimination half-life (t1/2) of noribogaine
Pharmacokinetics AUC0-t Day 8Day 8Determination of the area under the plasma concentration-time curve from time 0 to t of noribogaine
Pharmacokinetics AUC0-infinity Day 8Day 8Determination of the area under the plasma concentration-time curve from time 0 to infinity of noribogaine
Pharmacokinetics t1/2 Day 1Day 1Determination of elimination half-life (t1/2) of noribogaine
Pharmacokinetics Cmax Day 1Day 1Determination of maximum plasma concentration of noribogaine
Pharmacokinetics Cmax Day 8Day 8Determination of maximum plasma concentration of noribogaine
Pharmacokinetics Tmax Day 1Day 1Determination of the time to reach the maximum plasma concentration of noribogaine
Pharmacokinetics Tmax Day 8Day 8Determination of the time to reach the maximum plasma concentration of noribogaine
Pharmacokinetics AUC0-t Day 1Day 1Determination of the area under the plasma concentration-time curve from time 0 to t of noribogaine

Countries

United Kingdom

Contacts

PRINCIPAL_INVESTIGATORJorg Taubel

Richmond Pharmacology

Participant flow

Recruitment details

All participants were recruited at a single dedicated site - Richmond Pharmacology.

Pre-assignment details

All participants enrolled in the study were assigned to a treatment group.

Baseline characteristics

Characteristic
Age, Continuous29.1 Years
STANDARD_DEVIATION 6.12
BMI22.5 kg/m2
STANDARD_DEVIATION 3.1
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
4 Participants
Race (NIH/OMB)
Black or African American
21 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants
Race (NIH/OMB)
White
16 Participants
Region of Enrollment
United Kingdom
12 Participants
Sex: Female, Male
Female
3 Participants
Sex: Female, Male
Male
8 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
0 / 100 / 120 / 120 / 90 / 12
other
Total, other adverse events
4 / 108 / 1211 / 129 / 98 / 12
serious
Total, serious adverse events
0 / 100 / 120 / 120 / 90 / 12

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026