Clinical trial Recruiting at 1 site Phase 1 Interventional Ages 18 to 55

HRS-4139 safety and pharmacology in healthy adults

Official title: A Randomized, Double-blind, Dose-escalation Phase I Clinical Trial to Evaluate the Safety, Tolerability, Pharmacokinetics, Immunogenicity, and Pharmacodynamics of a Single Oral Dose of HRS-4139 in Healthy Participants

Run by Fujian Shengdi Pharmaceutical Co., Ltd. · NCT07802964 · Data updated 2026-11-12

This early-phase study tests a single dose of HRS-4139 to see if it is safe and how the body handles it in healthy adults aged 18–55.

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Quick facts

PhasePhase 1
Study typeInterventional
Ages18 Years to 55 Years
SexAll
Enrollment40 (estimated)
SponsorFujian Shengdi Pharmaceutical Co., Ltd.
Industry-sponsored
Locations1 site (Changsha, Hunan)
StatusRecruiting
StartedSeptember 21, 2026
Main results expectedMarch 2027
Study endsApril 2027
Registry record updatedSeptember 25, 2026
Trial IDNCT07802964 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18–55 with BMI 18.0–26.0 kg/m², willing and able to provide informed consent and comply with study procedures.

Probably not a fit

People with significant medical conditions or risk factors listed in the exclusion criteria are unlikely to benefit from participating.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a Phase 1 interventional trial evaluating a single oral dose of HRS-4139 in healthy participants. The study will assess safety, tolerability, pharmacokinetics, immunogenicity, and pharmacodynamics to understand how the drug behaves in the body and its initial biological effects. Participants will be randomly assigned to receive either HRS-4139 or placebo under closely monitored conditions. The trial will recruit adults 18 to 55 years old with specific BMI and weight ranges and will exclude individuals with several medical conditions or risk factors that could confound results. The lead sponsor is Fujian Shengdi Pharmaceutical Co., Ltd., with the Xiangya Hospital site handling study conduct.

Why it matters

Potential benefit: Participants may not benefit directly, but information gained could advance understanding of HRS-4139’s safety and dosing for future research.

How similar studies have gone: Early-phase trials of similar compounds have shown that Phase 1 safety and pharmacokinetic data can guide later development, though this exact compound is novel in this context.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Participants who understand the specific procedures of the trial, voluntarily agree to participate in this trial, and provide written informed consent.
2. Participants aged 18 to 55 years (inclusive) at screening.
3. Male body weight ≥ 50 kg, female body weight ≥ 45 kg, and body mass index (BMI) between 18.0 and 26.0 kg/m² (inclusive).
4. Participants who are able to communicate effectively with the investigator, fully understand and comply with all requirements of the trial protocol.

Exclusion Criteria:

1. Participants with any disease of the circulatory, endocrine, neurological, digestive, respiratory, hematologic, immunologic, psychiatric, or metabolic systems, or any other condition that may interfere with the trial results.
2. Participants with a history of malignancy.
3. Participants with a history of risk factors for Torsades de Pointes (e.g., heart failure, hypokalemia), or with short QT syndrome or long QT syndrome, or with a family history in first-degree relatives of unexplained sudden death, drowning, or sudden infant death syndrome (SIDS) occurring at ≤ 40 years of age.
4. Participants who have had an opportunistic infection within 6 months prior to screening; or who have a known history of recurrent or chronic infections, or who have had chronic or recurrent sinusitis, tonsillitis, urinary tract infections, prostatitis, enteritis, etc.
5. Participants who have had an acute infection with systemic symptoms requiring systemic anti-infective therapy (intravenous or oral) within 4 weeks prior to screening.
6. Participants who have participated in any clinical trial of a drug or medical device within 3 months prior to screening, where participation is defined as having signed the informed consent and having received the investigational drug or medical device; or Participants who are still within the follow-up period of any clinical study or within 5 elimination half-lives of the study drug at the time of screening, whichever is longer.
7. Participants who have used any medication (including prescription drugs, over-the-counter medications, Chinese herbal medicines, dietary supplements, etc.) within 2 weeks or within 5 elimination half-lives (whichever is longer) prior to the administration of the study drug; or Participants who plan to use any other medication during the study period.
8. Participants who have received a live (attenuated) vaccine within 1 month prior to screening or plan to receive such a vaccine during the trial period, with the exception of influenza vaccination.
9. Participants who have experienced severe trauma or undergone major surgery within 6 months prior to screening, or who plan to undergo surgery during the trial period.
10. Participants who have donated blood or experienced significant blood loss (≥ 400 mL) within 1 month prior to screening, or who have received a blood transfusion within 2 months prior to screening.

Where it's running

  • Xiangya Hospital of Central South University
    Changsha, Hunan, China
    Recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.