Skip to content

A Trial to Investigate the Safety and Pharmacokinetics of GRT6019 in Healthy Male Participants

An Open-label, Single-center, 4-week Phase I Trial Evaluating the Safety, Tolerability, and Pharmacokinetics of Multiple Doses of GRT6019 in Healthy Male Participants

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07347548
Enrollment
24
Registered
2026-01-16
Start date
2026-01-06
Completion date
2026-06-09
Last updated
2026-08-12

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

Conditions

Duchenne Muscular Dystrophy (DMD)

Brief summary

The purpose of this trial is to assess the safety, tolerability, and PK of 3 doses of GRT6019 in healthy male participants. This Phase I trial will be a multiple dose trial in healthy male participants with administration of GRT6019 in 3 cohorts. For each participant, the trial consists of a Screening Period of up to 28 days, a 4 week Treatment Period (including a 2-week clinic stay and 2 weeks in an outpatient setting), and a 5 week Follow-up Period.

Detailed description

There are 8 participants planned per cohort to ensure sufficient sample size for a reliable estimate of PK parameters.

Interventions

Multiple dose (MD)

Sponsors

Grünenthal GmbH
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Cohorts 1 and 2 will be dosed in parallel, followed by Cohort 3 sequentially

Eligibility

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

Inclusion criteria

Main Inclusion Criteria: 1. Participant must be male, 18 to 55 years of age (inclusive) at the time of signing the informed consent form and affiliated to the social security system. 2. Participant must be capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol. 3. Participant must sign the informed consent form before any trial-related assessments. 4. The participant is in good health as determined by the medical history, physical examination, 12-lead ECG, vital signs (heart rate, respiratory rate, systolic and diastolic blood pressure \[BP\]), body temperature, and clinical laboratory parameters (clinical chemistry, hematology, coagulation, and urinalysis) without clinically relevant (per investigator judgement) deviations from reference ranges unless further specified in the

Exclusion criteria

. The population of this clinical trial is healthy volunteer participants. Main

Design outcomes

Primary

MeasureTime frameDescription
Number of participants with Adverse Events (AEs)Through study completion, an average of 4 WeeksAssessment of safety and tolerability of GRT6019 following 4 weeks of treatment
Number of participants with Serious Adverse Events (SAEs)Through study completion, an average of 4 WeeksAssessment of safety and tolerability of GRT6019 following 4 weeks of treatment
Number of participants with AEs leading to discontinuationThrough study completion, an average of 4 WeeksAssessment of safety and tolerability of GRT6019 following 4 weeks of treatment
Number of participants with AEs related to investigational medicinal product [IMP]Through study completion, an average of 4 WeeksAssessment of safety and tolerability of GRT6019 following 4 weeks of treatment

Secondary

MeasureTime frameDescription
Area under the concentration-time curve over the dosing interval (AUCtau)Following the first dose (Day 1), then at Day 14, and after the last dose (Day 28)Assessment of the pharmacokinetics (PK) of GRT6019 following 4 weeks of treatment, including dose proportionality assessment and investigation of steady state attainment
Maximum observed concentration (Cmax)Following the first dose (Day 1), then at Day 14, and after the last dose (Day 28)Assessment of the pharmacokinetics (PK) of GRT6019 following 4 weeks of treatment, including dose proportionality assessment and investigation of steady state attainment

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 13, 2026