A Study to Investigate the Effects of JMKX003142 on QTc Interval in Healthy Adults (NCT07470177) | Clinical Trial Compass
Not Yet RecruitingPhase 1
A Study to Investigate the Effects of JMKX003142 on QTc Interval in Healthy Adults
24 participantsStarted 2026-03-27
Plain-language summary
The primary objective of this study is to assess the effect of a therapeutic and supratherapeutic oral dose of JMKX003142 on the corrected cardiac QT interval relative to a placebo in healthy participants
Who can participate
Age range
18 Years – 45 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
. Participants must be able to return to the study center for follow-up visits as required by the protocol and be willing to comply with study policies, procedures, and constraints. They must be able to communicate effectively with the investigator, complete study-related materials, and understand the contents of the Informed Consent Form (ICF). A written ICF must be signed before any study-specific procedures are performed.
. Healthy Chinese males or females based on medical history and physical examination. At the time of signing the informed consent form (ICF), participants must be aged 18 to 45 years (inclusive), with a body weight ≥ 50 kg and a body mass index (BMI) between 19.0 and 28.0 $kg/m\^2 (inclusive).
. Participants' health status will be determined by the investigator based on medical history, physical examination, clinical laboratory tests, and 12-lead electrocardiogram (ECG). All test results must be confirmed by the investigator as either normal or abnormal without clinical significance (NCS).
. Participants of childbearing potential must have no plans to conceive, freeze, or donate sperm/eggs from the time of signing the informed consent form (ICF) until 3 months after the last dose, and must agree to use highly effective contraception methods.
Exclusion criteria
. History or presence of clinically significant diseases, including but not limited to: cardiovascular, respiratory, gastrointestinal, hematological, genitourinary, endocrine and metabolic, neurological, psychiatric, musculoskeletal, dermatological, lymphatic, or immunological systems, or diseases of the sense organs, as well as current systemic or local acute/chronic infections.
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
1
The effect of JMKX003142 treatment on placebo-corrected change from baseline QT interval (ΔΔQTc)
. Participants with any condition that increases the risk of bleeding, such as acute gastritis or active ulcers with bleeding, clinically significant thrombocytopenia or anemia, active pathological bleeding, or a history of intracranial hemorrhage.
. Vital signs at screening that meet any of the following criteria: systolic blood pressure (SBP) ≥ 140 mmHg or \< 90 mmHg; diastolic blood pressure (DBP) ≥ 90 mmHg or \< 50 mmHg; pulse rate \> 100 bpm or \< 50 bpm; or axillary temperature \> 37.2°C.
. History of QTc interval prolongation, or any clinically significant abnormal ECG findings at screening as determined by the investigator, or QTcF ≥ 450 ms, or QRS duration \> 120 ms, or PR interval ≥ 200 ms.
. Clinical laboratory test results at screening showing serum potassium, magnesium, or calcium levels outside the normal range and judged by the investigator to be clinically significant.