Study in Healthy Volunteers Evaluating Safety and Pharmacokinetics of Zika Virus Immune Globulin (ZIKV-IG)
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ClinicalTrials.gov Identifier: NCT03624946 |
Recruitment Status :
Completed
First Posted : August 10, 2018
Results First Posted : July 13, 2020
Last Update Posted : December 8, 2020
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Condition or disease | Intervention/treatment | Phase |
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Zika Virus Infection Zika Virus Disease | Biological: Zika Virus Immune Globulin (ZIKV-IG) Other: Placebo | Phase 1 |
This study will be evaluating safety and pharmacokinetics (PK) of one dose level of ZIKV-IG (50 mL) in healthy adult volunteers. The study is a single-center, double-blind, randomized and placebo-controlled design. The primary objective is to assess safety of intravenously (IV) administered ZIKV-IG, while the secondary objective is to determine the PK profile of ZIKV-IG in healthy adult volunteers.
There will be a total of 30 subjects enrolled into the study; dosing of the first six subjects will be staggered over three separate days, wherein two subjects per day will be randomized 1:1 to either receive 50 mL of placebo IV or 50 mL of ZIKV-IG IV (the total amount of gamma immune globulin [IgG] protein from a single 50mL dose is 4.65g). After the first six subjects are dosed, the remaining 24 subjects will be randomized 2:1 to receive either ZIKV-IG or placebo. A safety monitoring committee will review safety data (collected up to 3 days post-dosing) of the first 12 dosed subjects prior to dosing of the remaining 18 subjects. Overall, there will be 19 subjects randomized to receive ZIKV-IG and 11 subjects randomized to receive placebo on Day 1. On Day 1 (post-dose at 1 hour, 3 hours, 8 hours) and Day 2, safety and PK assessments will be conducted while the subjects are in the Phase 1 clinic. After the discharge on Day 2, the subjects will come back to the clinic for safety and PK assessments on Days 3, 4, 6, 8, 10, 12, 15, 22, 29, 43, 57 and 85. Total study duration for each subject will be up to 4 months (from screening to Day 85).
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 30 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Prevention |
Official Title: | Safety and Pharmacokinetic Evaluation of Zika Virus Immune Globulin in Healthy Volunteers |
Actual Study Start Date : | June 27, 2018 |
Actual Primary Completion Date : | March 6, 2019 |
Actual Study Completion Date : | March 6, 2019 |

Arm | Intervention/treatment |
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Experimental: Zika Virus Immune Globulin (ZIKV-IG)
Single dose of 50 mL Zika Virus Immune Globulin (ZIKV-IG) will be administered intravenously over 33 minutes.
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Biological: Zika Virus Immune Globulin (ZIKV-IG)
Zika Virus Immune Globulin (ZIKV-IG) is a human immune globulin preparation containing neutralizing antibodies to Zika virus.
Other Names:
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Placebo Comparator: Placebo (Saline Solution)
Single dose of 50 mL placebo will be administered intravenously over 33 minutes.
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Other: Placebo
Placebo is a normal saline solution (0.9% sodium chloride).
Other Name: Saline solution |
- Number of Subjects With Adverse Events. [ Time Frame: Up to Day 85 ]Number of subjects with of adverse events by severity.
- Assessment of Zika Virus Immune Globulin (ZIKV-IG) Maximum Concentration (Cmax) [ Time Frame: 0-2 hours predose to Day 85 postdose ]Maximum observed serum concentration of Zika Virus Immune Globulin (ZIKV-IG)
- Assessment of Zika Virus Immune Globulin (ZIKV-IG) Time to Maximum Concentration (Tmax) [ Time Frame: 0-2 hours predose up to Day 85 postdose ]Time at which maximum serum concentration of Zika Virus Immune Globulin (ZIKV-IG) occurs.
- Assessment of Zika Virus Immune Globulin (ZIKV-IG) Area Under the Curve Up to Last Quantifiable Concentration (AUC0-t) [ Time Frame: 0-2 hours predose to Day 85 postdose ]Area under the concentration-time curve from time 0 to the last quantifiable serum Zika Virus Immune Globulin (ZIKV-IG) concentration.
- Assessment of Zika Virus Immune Globulin (ZIKV-IG) Area Under the Curve Extrapolated to Infinity (AUC0-inf) [ Time Frame: 0-2 hours predose up to Day 85 postdose ]Area under the concentration-time curve from time 0 to the last quantifiable serum Zika Virus Immune Globulin (ZIKV-IG) concentration, plus the area extrapolated to infinity.
- Assessment of Zika Virus Immune Globulin (ZIKV-IG) Clearance (CL) [ Time Frame: 0-2 hours predose up to Day 85 postdose ]Total body clearance of Zika Virus Immune Globulin (ZIKV-IG) following IV administration.
- Assessment of Zika Virus Immune Globulin (ZIKV-IG) Half-Life (t1/2) [ Time Frame: 0-2 hours predose up to Day 85 postdose ]Apparent first order terminal elimination half-life of Zika Virus Immune Globulin (ZIKV-IG).
- Assessment of Zika Virus Immune Globulin (ZIKV-IG) Volume of Distribution (Vz) [ Time Frame: 0-2 hours predose up to Day 85 postdose ]Volume of distribution of Zika Virus Immune Globulin (ZIKV-IG) following IV administration.

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years to 55 Years (Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Informed consent voluntarily signed by subject.
- Age: 18-55 years of age.
- Blood type O+ or O-.
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Body mass index (BMI) of 18-30.
- Note: minimum body weight of 50 kg.
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For female subjects (with male partners) that are not surgically sterilized (e.g., did not undergo hysterectomy, bilateral oophorectomy or tubal ligation), use of an effective method of contraception throughout the trial including:
- Using hormonal contraception (oral, injectable or implant) continuously for 3 months prior to screening and willing to continue to use hormonal contraception throughout the entire trial.
- Intrauterine device (IUD) inserted at least 1 month prior to screening.
- Double barrier type of birth control measure (e.g., condoms, diaphragms, cervical sponge with spermicide).
- True abstinence.
- For female subjects who are post-menopausal, documented follicle- stimulating hormone (FSH) ≥40 milli-international units per milliliter (mIU/mL) must be obtained. If the FSH is <40 mIU/mL, the subject must agree to use an acceptable form of contraception (see above).
- Females of childbearing potential without male sexual partners must be willing to maintain their sexual status as it is throughout the study.
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For male subjects that have not had a vasectomy, use of a condom with spermicide or true abstinence for the duration of the study. Note: female partners (that are of childbearing potential) of male study subjects (that have not had a vasectomy) should use one of the effective contraception methods (eg, hormonal contraception, IUD or barrier type). Also, male subjects must not donate sperm for the duration of the study.
- Males without female sexual partners must be willing to maintain their sexual status as it is throughout the study.
- Healthy as determined by principal investigator or a qualified designate based on medical history, physical exam, vital signs, urinalysis, blood chemistry and hematology test results at screening.
Exclusion Criteria:
- Use of any investigational product within the past 30 days.
- Use of any investigational product during the study.
- Individuals with blood type A, B or AB.
- Recipient of any blood product within the past 12 months.
- Plasma donation within 7 days or significant blood loss or blood donation within 56 days of baseline.
- Blood donation at any time during the study.
- Females with a hemoglobin level ≤120 g/L.
- Males with a hemoglobin level <130 g/L.
- History of hypersensitivity to blood or plasma products.
- History of allergy to latex or rubber.
- History of immunoglobulin A (IgA) deficiency.
- History of hypercoagulable conditions (e.g., deep vein thrombosis or pulmonary embolism).
- History of myocardial infarction.
- History of stroke.
- History of renal impairment/failure.
- Currently pregnant or lactating or planning to become pregnant during the study.
- History of flavivirus infection [ZIKV, dengue virus (DENV), West Nile virus (WNV), Japanese encephalitis virus (JEV), yellow fever virus (YFV)] or vaccination with licensed or investigational flavivirus vaccine.
- Plans to travel to an area with active flavivirus (e.g., ZIKV and/or DENV) transmission during the study (and up to 10 months after the study drug administration) or has returned from an endemic area with these diseases within 30 days of screening.
- Positive nucleic acid test (NAT) or serology for ZIKV or positive serology for WNV or DENV.
- Positive serology test (at screening) for human immunodeficiency virus 1 and 2 (HIV), hepatitis C virus (HCV); positive test for hepatitis B virus (HBV) as determined by HBsAg.
- History of chronic or acute severe neurologic condition (e.g., diagnosis of Guillain-Barre syndrome, epilepsy, Bell's palsy, meningitis or disease with any focal neurologic deficits).
- Heavy smokers (≥15cigarettes a day) or electronic cigarette use.
- History of, or suspected substance abuse problem (including alcohol).
- Failure of drug (urine) test at screening or baseline.
- Failure of alcohol (breath) test at screening or baseline.
- Receipt of a live vaccine within 28 days prior to screening or anticipated receipt of a live vaccine during the study period.
- Individuals with planned surgical procedures that will occur during the study.
- An opinion of the investigator that it would be unwise to allow participation of the subject in the study.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03624946
Canada, Ontario | |
Syneos Health, Early Phase | |
Toronto, Ontario, Canada, M5V 2T3 |
Principal Investigator: | Vadim Dreyzin, MD | Syneos Health | |
Principal Investigator: | Michael McDonnell, MD | Syneos Health |
Documents provided by Emergent BioSolutions:
Responsible Party: | Emergent BioSolutions |
ClinicalTrials.gov Identifier: | NCT03624946 |
Other Study ID Numbers: |
ZK-001 |
First Posted: | August 10, 2018 Key Record Dates |
Results First Posted: | July 13, 2020 |
Last Update Posted: | December 8, 2020 |
Last Verified: | December 2020 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Zika virus Human immune globulin Hyperimmune Polyclonal antibodies |
Zika Virus Infection Virus Diseases Infections Arbovirus Infections Vector Borne Diseases Flavivirus Infections Flaviviridae Infections RNA Virus Infections |
Immunoglobulins Antibodies gamma-Globulins Immunoglobulins, Intravenous Rho(D) Immune Globulin Immunoglobulin G Immunologic Factors Physiological Effects of Drugs |