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A Research Study Investigating Safety and Concentration in the Blood After One Dose Tablet of the New Medicine Monlunabant in Healthy Weight Japanese and Caucasian Men

Investigation of Tolerability, Safety, and Pharmacokinetic Properties of a Single Oral Dose of Monlunabant in Male Japanese and Caucasian Participants With Normal Body Weight

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06542536
Enrollment
73
Registered
2024-08-07
Start date
2024-08-09
Completion date
2024-10-25
Last updated
2025-11-18

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

Conditions

Obesity

Brief summary

The study is testing a new study drug in healthy normal weight Japanese and Caucasian participants after a single dose. The aim of this study is to see if the new medicine is safe and how it works in the participants body. Oral monlunabant is a new medicine which cannot be prescribed by doctors but has previously been tested in humans. The participant will either get monlunabant or placebo or a combination of both. Which treatment the participant get is decided by chance. The study will last for about 49 days in total.

Interventions

DRUGMonlunabant

Oral monlunabant

DRUGPlacebo (monlunabant)

Oral placebo (monlunabant)

Sponsors

Novo Nordisk A/S
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

Sponsor staff involved in the clinical trial is masked according to company standard procedures

Eligibility

Sex/Gender
MALE
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Male. * Age 18-55 years (both inclusive) at the time of signing the informed consent. * Considered eligible based on the medical history, physical examination, and the results of vital signs, electrocardiogram and clinical laboratory tests performed during the screening visit, as judged by the investigator. * For Japanese participants, both parents of Japanese descent and both paternal and maternal grandparents of Japanese descent. * For Caucasian participants, self-reported European descent or white Latin-American descent. * BMI 18.5-24.9 kg/m\^2 (both inclusive) at screening.

Exclusion criteria

* Known or suspected hypersensitivity to study intervention(s) or related products. * Previous randomisation in this study. * Previous rescreening for this study. * History of Major Depressive Disorder within the last 2 years from screening. * Presence or history of any psychiatric disorders (e.g., schizophrenia, bipolar disorder, eating disorders, depression, and anxiety) as judged by the investigator. * Suicidal ideation corresponding to type 4 or 5 or suicidal behaviour on the Columbia-Suicide Severity Rating Scale (C-SSRS) as assessed at screening or any history of suicidal attempts. * A Patient Health Questionnaire 9 (PHQ-9) score greater than 9 as assessed at screening.

Design outcomes

Primary

MeasureTime frameDescription
Number of treatment emergent adverse events (TEAEs) after single dose of oral monlunabantFrom dosing (day 1) to end of study visit (day 21)Number of events

Secondary

MeasureTime frameDescription
AUC0-∞,monlunabant, SD; the area under the monlunabant plasma concentration-time curve from time 0 to infinity after single dose of oral monlunabantFrom pre-dose (day 1) to end of study visit (day 21)h\*nmol/L
Cmax, monlunabant, SD; the maximum plasma concentration of monlunabant after single dose of oral monlunabantFrom pre-dose (day 1) to end of study visit (day 21)nmol/L
tmax,monlunabant, SD; the time of maximum observed plasma concentration of monlunabant single dose of oral monlunabantFrom pre-dose (day 1) to end of study visit (day 21)h (hours)
t½,monlunabant,SD; the terminal half-life of monlunabant after single dose of oral monlunabantFrom pre-dose (day 1) to end of study visit (day 21)h (hours)

Countries

United States

Outcome results

None listed

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