Evaluation of 626 in Healthy Adult Subjects

July 3, 2026 updated by: Sunshine Guojian Pharmaceutical (Shanghai) Co., Ltd.

A Randomized, Double-Blind, Placebo-Controlled, Single Ascending Dose Phase I Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Immunogenicity of SSGJ-626 in Healthy Adult Subjects

This is a randomized, double-blind, placebo-controlled, single ascending dose phase I clinical study to evaluate the safety, tolerability, PK and immunogenicity of SSGJ-626 in healthy adult subjects after single subcutaneous injection.

Study Overview

Status

Status

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

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.

Detailed Description

Six dose groups are planned for dose escalation in this study. Subjects in all dose groups will receive a single subcutaneous injection. Group S1 follows open-labeled, single-arm design, Groups S2 to S6 follow randomized, double-blinded, placebo-control design. Blood samples will be collected for PK, immunogenicity, biomarkers, laboratory tests, etc. according to the study schedule throughout the study.

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 (Actual)

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.
50

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
      • Shanghai, China, 200080
        • Shanghai General Hospital

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:

  • Able to understand protocol requirements and sign a written ICF.
  • Male or female subjects aged 18-45 years when signing the ICF.
  • Male subjects with body weight ≥ 50 kg, and female subjects with body weight ≥ 45 kg. Subjects with BMI between 18 and 28 kg/m2.
  • Subjects whose test results are normal, or abnormal without clinical significance as determined by the investigator.
  • Female subjects with childbearing potential and male subjects (and their female partners) must agree to take highly effective contraceptive measures.

Exclusion Criteria:

  • History of severe allergy, or with a history of allergy to the study treatment or related excipients.
  • With any clinically significant diseases prior to the screening visit.
  • Subjects with positive test results for hepatitis B surface antigen (HBsAg), anti-hepatitis C virus (HCV) antibody, anti-human immunodeficiency virus (HIV) antibody.
  • History of of significant alcohol abuse.
  • History of significant drug abuse.
  • Subjects who have positive result for urine nicotine test at screening.
  • Pregnant, or nursing females.

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: Double

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: 626 Group S1 for subcutaneous injection
dose level 1 of 626
Drug: 626
Single subcutaneous injection
Other Names:
  • SSGJ-626
Drug: Placebo
Single subcutaneous injection
Experimental: 626 Group S2 for subcutaneous injection
dose level 2 of 626
Drug: 626
Single subcutaneous injection
Other Names:
  • SSGJ-626
Drug: Placebo
Single subcutaneous injection
Experimental: 626 Group S3 for subcutaneous injection
dose level 3 of 626
Drug: 626
Single subcutaneous injection
Other Names:
  • SSGJ-626
Drug: Placebo
Single subcutaneous injection
Experimental: 626 Group S4 for subcutaneous injection
dose level 4 of 626
Drug: 626
Single subcutaneous injection
Other Names:
  • SSGJ-626
Drug: Placebo
Single subcutaneous injection
Experimental: 626 Group S5 for subcutaneous injection
dose level 5 of 626
Drug: 626
Single subcutaneous injection
Other Names:
  • SSGJ-626
Drug: Placebo
Single subcutaneous injection
Experimental: 626 Group S6 for subcutaneous injection
dose level 6 of 626
Drug: 626
Single subcutaneous injection
Other Names:
  • SSGJ-626
Drug: Placebo
Single subcutaneous injection

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
Measure Description
Time Frame
Number of participants with Adverse Events
Time Frame: 90 days
Incidence of adverse events will be summarized by SOC and PT for each treatment group, and also be summarized by severity and association with the study treatments.
90 days

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
Measure Description
Time Frame
Cmax
Time Frame: 90 days
Peak concentration (Cmax) will be calculated.
90 days
Tmax
Time Frame: 90 days
Time to peak concentration (Tmax) will be calculated.
90 days
AUC0-last
Time Frame: 90 days
Area under the concentration-time curve from time 0 to the time point of last measurable concentration post-dose (AUC0-last) will be calculated.
90 days
Incidence of Anti-Drug Antibody
Time Frame: 90 days
Anti-drug antibody (ADA) positive rate and titer will be calculated. Incidence of neutralizing antibody (Nab) if ADA is positive.
90 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.
Sunshine Guojian Pharmaceutical (Shanghai) 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.
December 2, 2024

Primary Completion (Actual)

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.
August 13, 2025

Study Completion (Actual)

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.
August 28, 2025

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).
November 1, 2024

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.
November 3, 2024

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.
November 5, 2024

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.
July 7, 2026

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.
July 3, 2026

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.
December 1, 2025

More Information

Terms related to this study

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.
  • SSGJ-626-HV-I-01

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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