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CompletedNCT02996890Updated Aug 18, 2022

Zika-Vaccine Dose Finding Study Regarding Safety, Immunogenicity and Tolerability (V186-001)

A Phase 1 interventional study of MV-ZIKA and Placebo in Zika Virus, sponsored by Themis Bioscience GmbH. Completed at 2 sites in Austria. Open to participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-08-18.

Sponsored by Themis Bioscience GmbH (part of Merck & Co., Inc) · Phase 1, Interventional, and Prevention

Phase
Phase 1
Study type
Interventional
Enrollment
48
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
All
01

Study summary

Double blinded, randomized, placebo-controlled, dose finding, multi-center, phase 1 trial in 48 healthy volunteer subjects.

After completion of screening procedures, the subjects are randomized to one of four treatment groups (different dosage strengths and placebo) All subjects will receive study treatment at day 0 and will return on day 28. Subjects randomized to treatment groups with two vaccinations will receive a second treatment at day 28.

Subjects will return on day 56 for the final visit.

02

Conditions studied

  • Zika Virus

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03

In context

Zika Virus Infection

65 studies on the registry are indexed under Zika Virus Infection; 5 are open to participants now.

This study's enrollment of 48 is below the median of 85 across 36 interventional studies indexed under Zika Virus Infection.

Browse Zika Virus Infection studies →

Lead sponsor

Themis Bioscience GmbH is the lead sponsor of 8 studies on the registry; none are open to participants now.

First submitted before Themis Bioscience GmbH became part of Merck & Co., Inc.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • healthy volunteers aged 18 to 55
  • subjects of child bearing potential must perform reliable method of contraception

Exclusion criteria

Exclusion Criteria:

  • immune deficiency, history of HIV, HBV, HCV
  • drug addiction
  • vaccination within 4 weeks prior to study or planned vaccination during study
  • prior receipt of any Zika vaccine
  • recent infection 1 week prior to screening
  • relevant medical history interfering with aim of study
  • neoplastic disease, hematological malignancy
  • history of autoimmune disease
  • psychological condition that affects ability to participate in the study
  • history of severe adverse reactions to vaccine administration
  • history of anaphylaxis
  • allergic reactions, abnormal lab values, or concomitant medication per decision of the investigator
  • use of immunosuppressive drugs within 30 days before screening or planned use during study
  • receipt of blood products within 120 days before screening or planned use during study
  • pregnancy, unreliable contraception method
  • decision of the investigator
  • regular blood plasma donor
05

Study design

Phase
Phase 1
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
48 participants (actual)

Study arms

  • Experimental
    High dose - single shot

    MV-ZIKA, high dose, one vaccination, day 0

    Biological: MV-ZIKA · Other: Placebo

  • Experimental
    Low dose

    MV-ZIKA, low dose, two vaccinations, day 0 and day 28

    Biological: MV-ZIKA

  • Experimental
    High dose

    MV-ZIKA, high dose, two vaccinations, day 0 and day 28

    Biological: MV-ZIKA

  • Placebo comparator
    Placebo

    Physiological saline, two treatments

    Other: Placebo

Interventions

  • BiologicalMV-ZIKA

    MV-Zika vaccine

  • OtherPlacebo

    physiological saline

06

What researchers measure

Primary outcomes

  1. Immunogenicity: Functional anti-Zika antibodies as measured by PRNT

    Functional anti-Zika antibodies as measured by PRNT.

    Time frame: 56 days

07

Study locations

2 sites
  • Medical University of Vienna, Center for Pathophysiology, Infectiology and Immunology
    Vienna, 1090, Austria
  • Medical University of Vienna, Department of Clinical Pharmacology
    Vienna, 1090, Austria
08

References and documents

Individual participant data

Plan to share: Yes — http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf

Data sharing details ↗ · engagezone.msd.com

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 18, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02996890
Responsible party
Sponsor
First posted
Dec 19, 2016
Start date
May 3, 2017
Primary completion
Jan 4, 2018
Completion
Apr 17, 2018
Last update
Aug 18, 2022

Study contacts

Medical Director
study director · Merck Sharp & Dohme LLC

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2022. You cannot join it, but the record below documents what was studied.

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