Study of Felzartamab in Healthy Adult Subjects

August 27, 2025 updated by: TJ Biopharma Co., Ltd.

A Phase 1 Clinical Study to Evaluate the Pharmacokinetic Comparability, Safety, Tolerability, and Immunogenicity of Felzartamab for Injection in Healthy Male Adult Subjects in China (Randomized, Double-blind, Crossover Design)

A Phase 1 Clinical Study to Evaluate the Pharmacokinetic Comparability, Safety, Tolerability, and Immunogenicity of Felzartamab for Injection Pre- and Post-changes of Process in Healthy Male Adult Subjects in China (Randomized, Double-blind, Single-dose, Two-formulation, Two-sequence, Two-period Crossover Design)

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.

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.
24

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
    • Changchun
      • Jilin, Changchun, China
        • The First Hospital of Jilin University

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:

  • Male subjects aged ≥ 18 years and ≤ 50 years when signing the ICF.
  • Weight ≥ 50 kg and ≤ 80 kg, with a BMI ≥ 19.0 and ≤ 28.0 kg/m2 (inclusive).
  • The study doctor determines that the overall health status of the subject is good (normal or abnormal but not clinically significant) based on the subject's medical history, physical examinations, vital signs, ECG, and laboratory test results.
  • Subjects who are voluntarily participate in the study, and can understand and sign the ICF.
  • Subjects (including their partners) who have no plans for pregnancy or sperm donation during the study and within 6 months after the last dose, and voluntarily use effective contraceptive measures. Specific contraceptive measures are described in Appendix 4.

Exclusion Criteria:

  • Subjects with diseases that may affect his safety or the results of the study, including but not limited to cardiovascular, respiratory, endocrine, metabolic, renal, hepatic, gastrointestinal, dermatological, infectious, malignant tumors, hematological, skeletal, genitourinary, neurological/psychiatric diseases, and are clinically significant in the opinion of the investigator.
  • Subjects who have had acute, chronic, or potential infectious diseases within 1 month pre-dose.
  • Subjects with known immune system diseases (such as autoimmune diseases or immunodeficiency diseases), including but not limited to autoimmune hemolytic anemia, etc.
  • Subjects who have had a single episode of herpes zoster (shingles) involving the skin or central nervous system within the 6 months pre-dose.
  • Subjects who currently have or have a history of multiple episodes of herpes zoster involving the skin or central nervous system.
  • Subjects with chronic diarrhea or enteritis within 1 year pre-dose.
  • Subjects with positive result for blood group antibody screening (IAT).
  • Subjects who have received monoclonal antibodies, cell therapies within 6 months pre-dose, or have previously received daratumumab or similar drugs, or drugs targeting CD38.
  • Subjects who have taken any medicine, including prescription drugs, over-the-counter drugs, and herbal medicine, within two weeks pre-dose.
  • Subjects who are suspected or confirmed to be allergic to multiple drugs or foods, including drugs or drug excipients in this clinical study.
  • Subjects who have a history of fear of needles or blood, or have difficulty with venous blood collection (have a history of difficulty with blood collection or have corresponding symptoms and signs, and cannot tolerate venous puncture).
  • Subjects with the history of blood donation or blood loss of ≥ 200mL in total within 3 months pre-dose;
  • Subjects who have participated in any other clinical studies of investigation drug or medical device within the 3 months pre-dose (or 5 half-lives for investigation drugs with so long half-life that the duration of its 5 half- lives is > 3 months).
  • Subjects who have undergone major surgery within the last 3 months prior to signing the ICF.
  • Subjects who are positive for Hepatitis B (positive for HBsAg or HBcAb and HBV-DNA levels of ≥ 500 cps/mL [or HBV-DNA ≥ 100 IU/mL]), HCV antibodies, HIV antibodies, and anti-TP antibodies.
  • Smokers who have smoked more than 5 cigarettes per day in the 3 months prior to the study or who are unable to stop using any tobacco products during the study.
  • Subjects who have received attenuated or live viral vaccines (such as Bacille Calmette-Guérin [BCG]) or viral vector vaccines within 12 months before the first dose of investigation drug, or plan to receive within 12 months post-dose.
  • Subjects who have received vaccines other than attenuated or live virus vaccines, as well as virus vector vaccines talked above, such as inactivated vaccines, recombinant subunit vaccines, etc. within the 1 month before the first dose.
  • The investigator determines the subjects have any other factors that make them unsuitable to participate in this study.

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: Health Services Research
  • Allocation: Randomized
  • Interventional Model: Crossover 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: Group A
T-R
Drug: T
8 mg/kg IV of Test drug manufactured by I-Mab Biopharma(Hangzhou)
Drug: R
8 mg/kg IV of Test drug manufactured by Patheon Italia
Experimental: Group B
R-T
Drug: T
8 mg/kg IV of Test drug manufactured by I-Mab Biopharma(Hangzhou)
Drug: R
8 mg/kg IV of Test drug manufactured by Patheon Italia

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
Primary PK Endpoint
Time Frame: 36 days after dosing
AUC0-∞
36 days after dosing

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.
TJ Biopharma Co., Ltd.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Xiaojiao Li, Doctor, The First Hospital of Jilin University

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.
March 27, 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 15, 2024

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 15, 2024

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).
February 22, 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.
February 22, 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.
February 29, 2024

Study Record Updates

Last Update Posted (Estimated)

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.
August 28, 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.
August 27, 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.
August 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.
  • TJ202001BE104

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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