A Phase I Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of HRS-5817 Injection

November 14, 2025 updated by: Fujian Shengdi Pharmaceutical Co., Ltd.

A Phase I Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Single and Multiple Injections of HRS-5817 Injection in Healthy Adult Volunteers With or Without Obesity

The purpose of this study is to assess the safety, tolerability, pharmacokinetics and pharmacodynamics of HRS-5817 when administered subcutaneously (SC) as single and multiple doses in adults who are affected by obesity.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
92

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
    • Anhui
      • Hefei, Anhui, China, 230601
        • Recruiting
        • The Second Hospital of Anhui Medical Uniersity
        • Principal Investigator:
          • Wei Hu
        • Contact:
        • Contact:
        • Principal Investigator:
          • Yijun Du

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  1. Voluntarily sign the informed consent form prior to any study-related activities, understand the procedures and methods of the study, and agree to complete this study in strict accordance with the clinical study protocol.
  2. Males or females aged 18-55 years old (inclusive).
  3. Subjects who are generally healthy as judged by the investigator based on medical history, vital signs, physical examination, laboratory tests and electrocardiogram (ECG) results.
  4. Body weight change (difference between the maximum body weight and the minimum body weight within 3 months) of no more than 5 kg within the past 3 months.
  5. Female subjects of childbearing potential must agree to take highly effective contraceptive measures and avoid egg donation from the signing of the informed consent form to 6 months after the last dose, and must have a negative blood pregnancy test result before administration and not be breastfeeding. Male subjects whose partners are women of childbearing potential must agree to take highly effective contraceptive measures and avoid sperm donation from the signing of the informed consent form to 6 months after the last dose.

Exclusion Criteria:

  1. Known or suspected allergy to any ingredient in the investigational medicinal products or related products; or history of multiple and/or severe allergies to drugs or food, or history of severe anaphylaxis.
  2. History of or suffering from major diseases of cardiovascular, endocrine (except primary obesity), mental, neurological, digestive, respiratory, blood, immune or genitourinary systems, which are not suitable for participation in this study as judged by the investigator.
  3. Subjects who have had severe trauma or undergone major surgical procedures within 6 months before screening, or who plan to undergo surgery during the study.
  4. Subjects who have participated in and used any other clinical trial drugs or medical device treatments within 3 months prior to screening or plan to do so during the study period, or within 5 half-lives of the investigational drug before screening (whichever is longer).
  5. Significant changes in diet and exercise habits within 1 month before screening, or failure to maintain a basically stable lifestyle such as diet and exercise during the study.
  6. Known or suspected history of drug abuse or substance abuse, or positive urine drug screening during the screening period.
  7. Other situations that may interfere with the evaluation of the study results or are not suitable for participating in this study as judged by the investigator.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: HRS-5817 Injection Group
Drug: HRS-5817 Injection
HRS-5817 injection administered subcutaneously (SC).
Placebo Comparator: HRS-5817 Injection Placebo Group
Drug: HRS-5817 Injection Placebo
HRS-5817 injection placebo administered subcutaneously (SC).

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Adverse events (AEs)
Time Frame: Baseline up to Day 253.
Baseline up to Day 253.

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Area Under the curve from time 0 to time t (AUC0-t)
Time Frame: 0 to anticipated 253 days.
0 to anticipated 253 days.
Area Under the curve from time 0 to infinity (AUC0-∞)
Time Frame: 0 to anticipated 253 days.
0 to anticipated 253 days.
Maximum concentration (Cmax)
Time Frame: 0 to anticipated 253 days.
0 to anticipated 253 days.
Time to reach maximum concentration (Tmax)
Time Frame: 0 to anticipated 253 days.
0 to anticipated 253 days.
Half-life (t1/2)
Time Frame: 0 to anticipated 253 days.
0 to anticipated 253 days.
Apparent clearance (CL/F)
Time Frame: 0 to anticipated 253 days.
0 to anticipated 253 days.
Proportion of anti-drug antibodies (ADA) positive subjects
Time Frame: 0 to anticipated 253 days.
0 to anticipated 253 days.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Fujian Shengdi Pharmaceutical Co., Ltd.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 8, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
April 1, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
April 1, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 11, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 11, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 18, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 17, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 14, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • HRS-5817-101

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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