CompletedPhase 1

A Study to Test How Iclepertin is Taken up in the Blood of People With and Without Liver Problems

Germany29 participantsStarted 2023-03-08

Plain-language summary

This study is open to people with and without liver problems. People can join the study if they are 18 to 79 years of age and have a body mass index (BMI) between 18.5 and 35 kg/m2. Iclepertin (also called BI 425809) is a medicine that is being developed to treat diseases of the brain. The purpose of this study is to find out whether having liver problems influences how iclepertin is taken up in the body. All participants take iclepertin once as a tablet. Participants are in the study for 2 to 3 weeks. During the first part of the study, they stay at the study site for 4 nights. Afterwards, there are 5 visits to the study site and 1 call. The site staff measures the amount of iclepertin in the blood. The doctors also regularly check participants' health and take note of any unwanted effects.

Who can participate

Age range

18 Years – 79 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria Inclusion criteria applicable to all participants: * Male or female participants * Age 18-79 years (inclusive) * Body Mass Index (BMI) of 18.5 to 35 kilograms per meter squared (kg/m2) (inclusive) * Signed and dated written informed consent in accordance with International Council for Harmonisation - Good Clinical Practice (ICH-GCP) and local legislation prior to admission to the trial * Male participants are not required to use contraception * Women of childbearing potential are allowed to participate provided they use a highly effective contraception from at least 30 days before the administration of trial medication until 30 days after trial completion. The following methods of contraception are considered adequate for female participants of childbearing potential: * Use of combined (oestrogen and progestogen containing) hormonal contraception that prevents ovulation (oral, intravaginal or transdermal), plus condom * Use of progestogen-only hormonal contraception that inhibits ovulation (only injectables or implants), plus condom * Use of intrauterine device (IUD) or intrauterine hormone-releasing system (IUS) * Sexually abstinent (true abstinence, in line with the preferred and usual lifestyle of the subject) - -A vasectomised sexual partner who received medical assessment of the surgical success (documented absence of sperm) and provided that partner is the sole sexual partner of the trial participant. Female participants are not considered to be …

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Area Under the Concentration-time Curve of Iclepertin in Plasma Over the Time Interval From 0 to the Last Quantifiable Data Point (AUC0-tz)

Timeframe: Within 2 hours before and 0.5, 0.75, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 24, 36, 48, 72, 96, 120, 144 and 192 hours following drug administration.

Maximum Measured Concentration of Iclepertin in Plasma (Cmax)

Timeframe: Within 2 hours before and 0.5, 0.75, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 24, 36, 48, 72, 96, 120, 144 and 192 hours following drug administration.

Trial details

NCT IDNCT05731895

SponsorBoehringer Ingelheim

Sponsor typeINDUSTRY

Study typeINTERVENTIONAL

Primary completion2023-12-11

Results submitted2026-03-10

View on ClinicalTrials.gov More Hepatic Insufficiency trials

Plain-language summary

Who can participate

Age range

18 Years – 79 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

What they're measuring

Area Under the Concentration-time Curve of Iclepertin in Plasma Over the Time Interval From 0 to the Last Quantifiable Data Point (AUC0-tz)

Timeframe: Within 2 hours before and 0.5, 0.75, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 24, 36, 48, 72, 96, 120, 144 and 192 hours following drug administration.

Maximum Measured Concentration of Iclepertin in Plasma (Cmax)

Timeframe: Within 2 hours before and 0.5, 0.75, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 4, 6, 8, 10, 12, 14, 24, 36, 48, 72, 96, 120, 144 and 192 hours following drug administration.