A Study of JNJ-64281802 Against Dengue Serotype 1 Infection in a Dengue Human Challenge Model in Healthy Adult Participants

  • End date
    Apr 8, 2024
  • participants needed
  • sponsor
    Janssen Research & Development, LLC
Updated on 16 June 2021


The purpose of this study is to assess the antiviral activity of JNJ-64281802 versus placebo in terms of reduction of dengue virus 1 (DENV-1) ribonucleic acid (RNA) viral load (VL).

Condition healthy
Treatment Placebo, JNJ-64281802 High dose, JNJ-64281802 Medium dose, JNJ-64281802 Low dose, JNJ-64281802 Dosing Regimen X, JNJ-64281802 Dosing Regimen Y, JNJ-64281802 Dosing Regimen Z
Clinical Study IdentifierNCT04480736
SponsorJanssen Research & Development, LLC
Last Modified on16 June 2021


Yes No Not Sure

Inclusion Criteria

Healthy on the basis of physical examination, medical history, and vital signs performed at screening. If there are abnormalities, the participant may be included only if the investigator judges the abnormalities to be not clinically relevant. This determination must be recorded in the participant's source documents and initialed and dated by the investigator
Must pass the comprehension test (i.e., obtain a passing score of greater than or equal to (>=) 75 percent (%), with up to 3 attempts in total) indicating that he or she understands the purpose, procedures, and potential risks and benefits of the study, after reading the informed consent and after the investigator or designee has provided detailed information on the study and answered the potential participant's questions
Must have a blood pressure (after the participant is supine for >=5 minutes) between 90 and 140 millimeters of Mercury (mmHg) systolic, extremes included, and less than or equal to (<=) 90 mmHg diastolic at screening. Two repeat measurements are allowed in the absence of any other concerning health screening issues
Must have a Body mass index (BMI) (weight in kilogram divided by the square of height in meters) between 18.0 and 33.0 kilogram per meter square (kg/m^2), extremes included, and a body weight of >=50.0 kg at screening
All women of childbearing potential must have a negative highly sensitive serum (beta-human chorionic gonadotropin) pregnancy test at screening

Exclusion Criteria

Known allergies, hypersensitivity, or intolerance to JNJ-64281802 or its excipients, to a previous vaccination, or to specific medications/animals for which antigens may be in the dengue virus (DENV)-1 challenge strain preparations, including shellfish, fetal bovine serum, L-glutamine, neomycin, and streptomycin
Any condition for which, in the opinion of the investigator, participation would not be in the best interest of the participant (example, compromise the well-being) or that could prevent, limit, or confound the protocol-specified assessments
Received an investigational intervention (including investigational vaccines) or used an invasive investigational medical device within 6 months before first dose of study drug, or is currently enrolled in an investigational study, or is planning to be enrolled in an investigational study within 90 days after last dose of study drug
Pregnant, breastfeeding, or planning to become pregnant during the study or within 90 days after last dose of study drug
Plans to father a child during the study or within 90 days after last dose of study drug
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Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

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If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

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Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

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