Skip to content

A Study of JNJ-64300535 in Healthy Participants

A Phase 1 Open-label Study to Assess the Immunogenicity, Safety, and Reactogenicity of JNJ-64300535, a DNA Vaccine Administered by Electroporation-mediated Intramuscular Injection, in Healthy Participants

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04736147
Enrollment
14
Registered
2021-02-03
Start date
2021-02-03
Completion date
2021-12-07
Last updated
2021-12-22

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

Conditions

Healthy

Brief summary

The purpose of this study is to evaluate the cellular immunogenicity of 3 monthly electroporation-mediated intramuscular (IM) injections of JNJ-64300535 in healthy participants.

Interventions

BIOLOGICALJNJ-64300535

JNJ-64300535 injection will be administered intramuscularly.

Sponsors

Janssen Research & Development, LLC
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Must sign an informed consent form (ICF) indicating that he understands the purpose, procedures and potential risks and benefits of the study, and is willing to participate in the study * Willing and able to adhere to the prohibitions and restrictions specified in this protocol * Must be healthy as confirmed by medical history, physical examination, and vital signs performed at screening

Exclusion criteria

* Weight of less than (\<) 50 kilograms (kg) and a body mass index (BMI) \<19.0 or greater than (\>) 29.9 kilogram per meter square (kg/m\^2) at screening * History of Human Immunodeficiency Virus (HIV) infection or a positive HIV antibody test at screening * History of HBV infection, measured by the presence of HBsAg and/or anti-HBc antibodies * History of seizure disorders unless seizure free for \>5 years * Has a non-removable active electronic stimulation device

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants Responding Against Hepatitis B Virus (HBV) Core or Polymerase (Pol) Vaccine AntigensUp to Day 67Percentage of participants responding against HBV Core or Pol vaccine antigens will be reported.

Secondary

MeasureTime frameDescription
Number of Participants With Solicited Systematic Adverse EventsUp to Day 64An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Participants will be instructed on how to note signs and symptoms in the diary on a daily basis for 7 days post-vaccination (Day of vaccination and the subsequent 7 days) for solicited systemic AEs. Solicited systemic events will include fever, headache, fatigue/malaise, myalgia, nausea/vomiting, arthralgia and chills.
Number of Participants With Serious Adverse Events (SAEs)Up to Day 225A SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Number of participants with SAEs will be reported.
Number of Participants With Unsolicited Adverse EventsUp to Day 225An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Unsolicited AEs are events which will be reported by the participant voluntarily or obtained by means of interviewing the participant in a non-directed manner at study visits.
Number of Participants With Clinically Significant Abnormalities in Laboratory ParametersUp to Day 225Number of participants with clinically significant abnormalities in laboratory parameters such as (hematology, blood biochemistry, blood coagulation and urinalysis) will be reported.
Number of Participants With Clinically Significant Abnormalities in Electrocardiogram (ECG)Up to Day 113Number of participants with clinically significant abnormalities in ECG will be reported.
Number of Participants With Clinically Significant Abnormalities in Vital SignsUp to Day 225Number of participants with clinically significant abnormalities in vital signs (including body temperature, pulse/heart rate, systolic and diastolic blood pressure) will be reported.
Number of Participants With Solicited Local Adverse Events (AEs)Up to Day 64An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Solicited local AEs are pre-defined local (at the injection site) AEs for which participants will be specifically questioned and which will be noted by participants in their diary for 7 days post first vaccination. Solicited local AEs are: injection site pain/tenderness, erythema, induration/swelling, itching at the vaccination site.
Percentage of Participants With a Positive T-cell Response Against HBV Core or Pol Vaccine AntigensUp to Day 225Percentage of participants with a positive T-cell response against HBV Core or Pol vaccine antigens will be reported.
Breadth of the T-cell Responses Against HBV Core or Pol Vaccine AntigensUp to Day 225Breadth of the T-cell responses against HBV Core or Pol vaccine antigens will be reported.
Magnitude of the T-cell Responses Against HBV Core or Pol Vaccine AntigensUp to Day 225Magnitude of the T-cell responses against HBV Core or Pol vaccine antigens will be reported
Number of Cytokines of Cluster of Differentiation 4 (CD4) and Cluster of Differentiation 8 (CD8) T-cell Responses Against HBV Core or Pol Vaccine AntigensUp to Day 225Number of cytokines of both CD4 and CD8 T-cell responses against HBV Core or Pol vaccine antigens will be reported.
Frequency of Intramuscular TriGrid Delivery System version 2.0 (TDS-IM v2.0) Device Faulty ConditionsUp to Day 57Frequency of device fault conditions observed during administration of study treatment with TDS-IM v2.0 device will be reported.
Number of Participants With Clinically Significant Abnormalities in Physical ExaminationUp to Day 225Number of participants with clinically significant abnormalities in physical examination (including height, body weight, skin examination, and other body systems) will be reported.

Countries

Belgium

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026