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A Trial to Investigate Safety and Pharmacokinetics of GRT6019, Including Food Effect, in Healthy Male Participants

An Open-label, Single-center Trial Evaluating the Safety, Tolerability, and Pharmacokinetics of a Single Dose of GRT6019, Including Food Effect, in Healthy Male Participants

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07317063
Enrollment
18
Registered
2026-01-05
Start date
2025-11-21
Completion date
2026-01-06
Last updated
2026-02-13

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 evaluate the safety, tolerability, and Pharmacokinetics (PK) of a single oral dose of GRT6019 in healthy male participants, including food effect. This is an open-label, single-dose, single-center Phase I trial with healthy male participants. The trial will consist of 2 cohorts with a total duration of approximately 7 weeks, including a 28-day Screening Period. The participants will receive a single dose of GRT6019 administered on Day 1 and will remain at the clinic for 7 additional days. Following the in-house stay, there will be 2 Follow-up Visits up until Day 23, with 3 clinic visits scheduled

Detailed description

Cohort 1 and Cohort 2 will be dosed in parallel: * Cohort 1 (n = 9): single dose of GRT6019 in participants in a fed state * Cohort 2 (n = 9): single dose of GRT6019 in participants in a fasted state

Interventions

Single Dose

Sponsors

Grünenthal GmbH
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

Main inclusion Criteria: 1. The participant must be able to give signed informed consent, including compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol. 2. Participants must sign the ICF before any trial-related assessments. 3. The participant is in good health as determined by the medical history, physical examination, 12-lead Electrocardiogram (ECG), vital signs (heart rate \[HR\], respiratory rate \[RR\], 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

. Main

Design outcomes

Primary

MeasureTime frameDescription
Number of participants with Adverse Events leading to discontinuationThrough study completion, an average of 7 WeeksAssessment of safety and tolerability of GRT6019 after a single oral dose
Number of participants with Adverse EventsThrough study completion, an average of 7 WeeksAssessment of safety and tolerability of GRT6019 after a single oral dose
Number of participants with serious Adverse EventsThrough study completion, an average of 7 WeeksAssessment of safety and tolerability of GRT6019 after a single oral dose
Number of participants with Adverse Events related with GRT6019Through study completion, an average of 7 WeeksAssessment of safety and tolerability of GRT6019 after a single oral dose

Secondary

MeasureTime frameDescription
Area under the concentration-time curve from pre-dose (time 0) to the time of the last quantifiable concentration (AUC0-t)From pre-dose (at -2 hours to -5 minutes ) to 528 hours post-dose.The total amount of the study drug in the blood from the time it is taken until the last time a measurable level of the drug is found. Assessment of the PK of GRT6019 following a single dose under fasted and fed conditions.
Area under the concentration-time curve from pre-dose (time 0) extrapolated to infinite time (AUC0-inf )From pre-dose (at -2 hours to -5 minutes ) to 528 hours post-dose.The total amount of the study drug in the blood from the time it is taken until it has completely left the body. Assessment of the PK of GRT6019 following a single dose under fasted and fed conditions.
Maximum plasma concentration (Cmax)From pre-dose (at -2 hours to -5 minutes ) to 528 hours post-dose.The maximum amount of the study drug measured in the blood after taking the dose. Assessment of the PK of GRT6019 following a single dose under fasted and fed conditions.
Time of maximum plasma concentration (Tmax)From pre-dose (at -2 hours to -5 minutes ) to 528 hours post-dose.The time it takes to reach the highest concentration of the study drug in the blood after dosing. Assessment of the PK of GRT6019 following a single dose under fasted and fed conditions.
Lag-time observed from dosing to the time point prior to that of the first quantifiable plasma concentration (Tlag). Assessment of the PK of GRT6019 following a single oral dose of the pediatric formulation under fasted and fed conditions.From pre-dose (at -2 hours to -5 minutes ) to 528 hours post-dose.The time between when the study drug is taken and when it first becomes measurable in the blood. Assessment of the PK of GRT6019 following a single dose under fasted and fed conditions.
Terminal elimination half life (T₁/₂)From pre-dose (at -2 hours to -5 minutes ) to 528 hours post-dose.The time it takes for the amount of study drug in the blood to reduce by half after reaching its peak level. Assessment of the PK of GRT6019 following a single dose under fasted and fed conditions.
Total body oral clearance (CL/F)From pre-dose (at -2 hours to -5 minutes ) to 528 hours post-dose.The amount of blood completely cleared of thestudy drug (and metabolite) per unit of time, taking into account how much of the drug is absorbed into the body. Assessment of the PK of GRT6019 following a single dose under fasted and fed conditions.
Apparent volume of distribution (V/F)From pre-dose (at -2 hours to -5 minutes ) to 528 hours post-dose.An estimate of how widely the study drug spreads through the body's tissues after it is absorbed. Assessment of the PK of GRT6019 following a single dose under fasted and fed conditions.
Ratio of the geometric mean of AUC0-tFrom pre-dose (at -2 hours to -5 minutes ) to 528 hours post-dose.Assessment of the effect of food (fed and fasted state) on the PK of GRT6019 following a single dose.
Ratio of the geometric mean of AUC0-infFrom pre-dose (at -2 hours to -5 minutes ) to 528 hours post-dose.Assessment of the effect of food (fed and fasted state) on the PK of GRT6019 following a single dose.
Ratio of the geometric mean of CmaxFrom pre-dose (at -2 hours to -5 minutes ) to 528 hours post-dose.Assessment of the effect of food (fed and fasted state) on the PK of GRT6019 following a single dose.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 14, 2026