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Investigating the Safety of LEO 158968 in Healthy Volunteers

A Randomized, Double-Blind, Placebo-Controlled, Single- And Multiple Ascending Dose Trial To Evaluate The Safety, Tolerability, And Pharmacokinetics Of Leo 158968 In Healthy Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05682352
Enrollment
120
Registered
2023-01-12
Start date
2023-02-07
Completion date
2024-08-01
Last updated
2026-04-28

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

Conditions

Healthy

Keywords

Healthy Volunteers, LEO 158968

Brief summary

The purpose of this study is to investigate what side effects the new compound LEO 158968 might cause and how well it is tolerated when it is used by healthy participants. It will also investigate how quickly and to what extent LEO 158968 is distributed and eliminated from the body and if LEO 158968 causes the body to make antibodies. In the single ascending dose (SAD) cohorts, participants will receive escalating doses of LEO 158968 if the safety and tolerability results of the initial participants up to 48 hours (or 4 days for SC dosing) following dosing are acceptable to the Investigator. In the multiple ascending dose (MAD) cohorts, the dose of LEO 158968 will be determined based on results derived from the earlier SAD cohorts and additional preclinical data from a 5-week good laboratory practice (GLP) cynomolgus monkey toxicology study.

Interventions

IV infusion or SC injection

DRUGPlacebo

IV infusion or SC injection

Sponsors

LEO Pharma
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
BASIC_SCIENCE
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
Yes

Inclusion criteria

1. Age: 18 to 60 years, inclusive, at screening 2. Sex: Male or female 3. Body mass index: 18.0 kg/m\^2 to 32.0 kg/m\^2, inclusive, at screening 4. Health status: In good health as judged by the Investigator based on medical history, physical examination, electrocardiogram (ECG), hematology, biochemistry, and urinalysis.

Exclusion criteria

A participant who meets any of the following

Design outcomes

Primary

MeasureTime frameDescription
Number of Treatment-emergent Adverse Events (TEAEs) Reported for Each ParticipantDay 1 to Day 113Any clinically significant changes from baseline in clinical laboratory parameters, vital signs including systolic and diastolic blood pressure, and abnormal clinically significant findings from physical examinations following first dose will be recorded as TEAEs.

Secondary

MeasureTime frameDescription
Area Under the Serum Concentration-time Curve from Time 0 to Infinity (AUC0-∞) of LEO 158968Day 1 to Day 85
Area Under the Serum Concentration-time Curve from 0 Hours to 168 Hours (AUC0-168h) of LEO 158968Day 1 to Day 85
Area Under the Serum Concentration-time Curve from t=0 to t (AUC0-t) of LEO 158968Day 1 to Day 85Where t corresponds to the last observed quantifiable concentration calculated by the linear up - logarithmic down trapezoidal rule.
Serum Concentration Observed at 168 Hours Post-dose (C168h) of LEO 158968Day 1 to Day 85
Maximum Observed Serum Concentration (Cmax) of LEO 158968Day 1 to Day 85
Apparent Terminal Half-life (t1/2) of LEO 158968Day 1 to Day 85
Time of Last Quantifiable Concentration (tlast) of LEO 158968Day 1 to Day 85
Time of Cmax (tmax) of LEO 158968Day 1 to Day 85
Area Under the Serum Concentration-time Curve Over the Dosing Interval τ (ie, 168 hours) (AUCτ) of LEO 158968Day 1 to Day 113
AUC0-t of LEO 158968Day 1 to Day 113
Trough Serum Concentration Observed at the End of a Dosing Interval (168 hours post-dose) (Cτ) of LEO 158968Day 1 to Day 113
Cmax of LEO 158968Day 1 to Day 113
t1/2 of LEO 158968Day 1 to Day 113
tlast of LEO 158968Day 1 to Day 113
tmax of LEO 158968Day 1 to Day 113
Number of Participants with Antidrug Antibodies (ADA)Day 1 to Day 113

Countries

Netherlands

Contacts

STUDY_DIRECTORMedical Expert

LEO Pharma

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 29, 2026