Clinical trial NCT04561076: Evaluate Safety and Pharmacokinetics of HLX70 in Healthy Adult Volunteers
Official title: A Randomized, Double-Blind, Placebo-Controlled, Dose Escalation Phase I Clinical Study to Evaluate Safety and Pharmacokinetics of HLX70 in Healthy Adult Volunteers
Study type: INTERVENTIONAL
Overall status: WITHDRAWN
Phase: PHASE1
Conditions: COVID 19
Lead sponsor: Hengenix Biotech Inc
Sponsor class: INDUSTRY
Collaborators: name: Sanyou Biopharmaceuticals(Shanghai)Co., Ltd
name: Shanghai ZJ Bio-Tech Co., Ltd
First posted: 2020-09-23
Enrollment: 0
Sex: ALL
Minimum age (years): 18
Maximum age (years): 60
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: SEQUENTIAL
Primary purpose: OTHER

Brief summary: A Randomized, Double-Blind, Placebo-Controlled, Dose Escalation Phase I Clinical Study to Evaluate Safety and Pharmacokinetics of HLX70 in Healthy Adult Volunteers

Detailed description: A randomized, double-blind, single-dose by intravenous administration, placebo-controlled, dose escalation, first-in-human study is proposed to evaluate the safety, PK, and immunogenicity of HLX70 in healthy subjects. The investigators plan to enroll 8 subjects in each of the 3 dose cohorts at 3 mg/kg, 10 mg/kg, and 30 mg/kg, of which 2 receive intravenous injections of placebo and 6 receive intravenous injections of the investigational product (IP). A total of 24 subjects will be enrolled.

Eligibility criteria: Inclusion Criteria:

1. Subjects with voluntary signing of the informed consent form (ICF);
2. Healthy males or females aged ≥ 18 and ≤ 60 years at the time of signing the ICF;
3. Subjects with body weight ≥ 50 kg and body mass index (BMI) must be higher than 18.5 kg/m2 and lower than 30 kg/m2 at screening visit;
4. Subjects who are determined to be in good health according to medical history, normal (site normal ranges to be followed) or abnormal but clinically insignificant physical examination, vital signs, ECG, laboratory test results (including hematology, serum chemistry, coagulation function, urinalysis, etc.), and investigator's clinical judgment (CTCAE grade 1 of triglycerides and uric acid is permitted). One re-test allowed per investigator discretion to confirm result.
5. Subject who agrees that he/she, and his/her spouse or partner, will use reliable contraception (see appendix 1) for 9 months after administration.

Exclusion Criteria:

1. Subjects with the lab-confirmed medical history of COVID-19, including nucleic acid (PCR testing of nasopharyngeal samples) tested positive or antibody IgG/IgM tested positive.
2. Subjects with the novel onset of pyrexia/cough/shortness of breath/diarrhea or history of contact with confirmed COVID-19 individuals (positive for SARS-CoV-2 nucleic acid) within the 14 days before randomization.
3. Subjects who are known to have chronic obstructive pulmonary disease (COPD), cirrhosis of liver, cardiac failure or any condition that requires active medical intervention or monitoring to avert serious danger to the participant's health or well-being.
4. Subjects with pneumonia or tuberculosis (TB) suggested by chest X-Ray.
5. Subjects with previous exposure to a mAb or any other biological agents in 6 months before screening.
6. Subjects with previous exposure to vaccines in 3 months before screening, or who plans to receive vaccination during the study period or in 3 months after the study.
7. Subjects with previous participation in clinical trials receiving investigational drug/comparator within the longer of 30 days or 5 half-lives before screening.
8. Subjects who are known to have a history of allergy to any mAb, biological product, protein product, or the ingredient of the IP.
9. Subjects with positive test result(s) for hepatitis B virus (positive for HBsAg or positive for HBcAb and HBV-DNA), hepatitis C virus (HCV) antibodies, human immunodeficiency virus (HIV) antibodies, or treponema pallidum.
10. Subjects who are known to have a history of psychotropic drug abuse, alcoholism, or drug addiction within the last year.

Primary outcomes:
measure: Number of participants with adverse events, serious adverse event and infusion-related reactions as assessed by CTCAE v5.0
timeFrame: up to 92 days
measure: Safety evaluation- proportion of subjects undergoing DLT events
timeFrame: Days 1 to 7
Secondary outcomes:
measure: PK parameters-Areas under the concentration-time curves
timeFrame: pre-infusion (pre-dose), immediately post-infusion, 3 hours, 6 hours and 10 hours post-infusion, Days 2, 3, 5, 8, 11, 15, 22, 29, 43, 57, 71 and 92.
measure: PK parameters-Maximum measured concentration
timeFrame: pre-infusion (pre-dose), immediately post-infusion, 3 hours, 6 hours and 10 hours post-infusion, Days 2, 3, 5, 8, 11, 15, 22, 29, 43, 57, 71 and 92.
measure: PK parameters-Time from dosing to maximum measured concentration
timeFrame: pre-infusion (pre-dose), immediately post-infusion, 3 hours, 6 hours and 10 hours post-infusion, Days 2, 3, 5, 8, 11, 15, 22, 29, 43, 57, 71 and 92.
measure: PK parameters-Terminal phase elimination rate constant
timeFrame: pre-infusion (pre-dose), immediately post-infusion, 3 hours, 6 hours and 10 hours post-infusion, Days 2, 3, 5, 8, 11, 15, 22, 29, 43, 57, 71 and 92.
measure: PK parameters-Terminal phase elimination half life
timeFrame: pre-infusion (pre-dose), immediately post-infusion, 3 hours, 6 hours and 10 hours post-infusion, Days 2, 3, 5, 8, 11, 15, 22, 29, 43, 57, 71 and 92.
measure: PK parameters-Clearance
timeFrame: pre-infusion (pre-dose), immediately post-infusion, 3 hours, 6 hours and 10 hours post-infusion, Days 2, 3, 5, 8, 11, 15, 22, 29, 43, 57, 71 and 92.
measure: PK parameters-Volume of distribution during terminal phase and at steady state
timeFrame: pre-infusion (pre-dose), immediately post-infusion, 3 hours, 6 hours and 10 hours post-infusion, Days 2, 3, 5, 8, 11, 15, 22, 29, 43, 57, 71 and 92.
measure: PK parameters-Mean residence time
timeFrame: pre-infusion (pre-dose), immediately post-infusion, 3 hours, 6 hours and 10 hours post-infusion, Days 2, 3, 5, 8, 11, 15, 22, 29, 43, 57, 71 and 92.
measure: Anti-drug antibody
timeFrame: pre-infusion and Days 15, day 29, day 57, and day 92
Other outcomes:
Locations:
Study officials:
affiliation: California Clinical Trials Medical Group (CCTMG) managed by Parexel
name: Esther Yoon, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Kreuzberger N, Hirsch C, Chai KL, Tomlinson E, Khosravi Z, Popp M, Neidhardt M, Piechotta V, Salomon S, Valk SJ, Monsef I, Schmaderer C, Wood EM, So-Osman C, Roberts DJ, McQuilten Z, Estcourt LJ, Skoetz N. SARS-CoV-2-neutralising monoclonal antibodies for treatment of COVID-19. Cochrane Database Syst Rev. 2021 Sep 2;9(9):CD013825. doi: 10.1002/14651858.CD013825.pub2.