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Pharmacokinetic Characteristics, Safety, and Immunogenicity of HLX319 Compared With EU-Phesgo®

A Randomized, Double-blind, Single Subcutaneous Administration, Parallel Control Phase I Clinical Study to Compare the Pharmacokinetic Characteristics, Safety, and Immunogenicity of HLX319 and EU-Phesgo® in Chinese Healthy Male Subjects.

Status
Not yet recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07495930
Enrollment
24
Registered
2026-03-27
Start date
2026-04-30
Completion date
2026-10-10
Last updated
2026-04-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Adult Subjects

Brief summary

The study is being conducted to compare the pharmacokinetic (PK) parameters of HLX319 and EU-Phesgo® after a single subcutaneous administration in healthy male subjects in China, providing a basis for the design of subsequent clinical study protocols.

Interventions

DRUGHLX319

HLX319 is a biosimilar of pertuzumab-trastuzumab monoclonal antibody injection (subcutaneous injection).

DRUGEU-Phesgo

EU-Phesgo is an original marketed drug product, with the generic name pertuzumab-trastuzumab monoclonal antibody injection (subcutaneous injection).

Sponsors

Shanghai Henlius Biotech
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
MALE
Age
18 Years to 45 Years
Healthy volunteers
Yes

Inclusion criteria

1. Male subjects aged ≥18 and ≤45 years; 2. The skin at the injection site is intact, without damage, tattoos, or other markings; 3. Subjects have no history of disease or past medical history abnormalities that, in the judgment of the study physician, would affect the trial; 4. Physical examination, vital signs, chest x-ray, electrocardiogram, and laboratory investigations are normal or show abnormalities without clinical significance. 5. Body weight (BW) ≥50 and ≤75 kg; 6. Body mass index (BMI) ≥19 and ≤24 kg/m² \[BMI = weight (kg) / height² (m²)\]; 7. Within 14 days prior to random allocation, left ventricular ejection fraction (LVEF) assessed by echocardiography is within the normal range (≥55%);

Exclusion criteria

1. Clinically significant diseases including but not limited to the gastrointestinal tract, kidneys, liver, nerves, blood, endocrine system, tumors, respiratory system, immune system, mental health, and cardiovascular and cerebrovascular diseases; 2. History of allergy or hypersensitivity reactions. 3. Intake of prescription drugs, over-the-counter drugs, or traditional Chinese medicine within 28 days prior to randomization; 4. History of blood donation or blood loss (\>450mL) within 3 months prior to randomization; 5. Positive test results for Hepatitis B Surface Antigen (HbsAg), Hepatitis C Virus (HCV) antibodies, and Human Immunodeficiency Virus (HIV) antibodies, or abnormal and clinically significant quantitative test results for syphilis spirochetes as determined by the sub investigator; 6. History of upper respiratory tract infection or other acute infections within 2 weeks prior to r randomization; 7. History of drug abuse, substance use; 8. History of alcoholism or positive alcohol test results; 11\. History of long-term heavy smoking .

Design outcomes

Primary

MeasureTime frameDescription
AUC0-infup to 85 daysArea-under-curve of blood drug concentration-time from time 0 to infinity after a single drug administration
Cmaxup to 85 daysPeak concentration after a single administration

Secondary

MeasureTime frameDescription
AUC0-tup to 85 daysArea-under-curve of the blood drug concentration-time curve from time zero to the last quantifiable concentration time

Countries

China

Contacts

CONTACTqi Jin
Qi_jin@henlius.com86 159 5516 0489

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 2, 2026