A Two-Part Infant Study for Early Diagnosis of Respiratory Syncytial Virus (RSV) and Evaluation of JNJ-53718678 in RSV Acute Respiratory Tract Disease

January 31, 2025 updated by: Janssen Research & Development, LLC

A Two-Part Study With a Birth Cohort (Observational Stage) for Early Diagnosis of Respiratory Syncytial Virus (RSV), Followed by an Optional Phase 2a, Randomized, Double-blind, Placebo-controlled Study (Interventional Stage) to Evaluate the Antiviral Activity, Clinical Outcomes, Safety, Tolerability, and Pharmacokinetics of JNJ-53718678 in Infants With Acute Respiratory Tract Infection Due to RSV

The purpose of this two-part designed study is to assess in the setting of a planned early interception of pediatric RSV disease, early viral and disease kinetics (observational stage) and the antiviral effects of an Respiratory Syncytial Virus (RSV) fusion inhibitor, JNJ-53718678 (interventional stage). In the observational stage the infant is closely monitored for early symptoms by the parent(s)/caregiver(s) and thus may be brought in for diagnosis earlier than in the typical setting.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
22

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Argentina
      • Tucumán, Argentina
        • Instituto de Maternidad y Ginecología Nuestra Señora de las Mercedes
  • Belgium
      • Edegem, Belgium, 2650
        • UZ Antwerpen
  • Panama
      • Panama, Panama, 000000
        • CEVAXIN 24 de Diciembre
      • Panama, Panama, 000000
        • CEVAXIN Avenida Mexico
      • Republica De Panama, Panama, 000000
        • Cevaxin La Chorrera
  • Taiwan
      • Hsinchu, Taiwan, 30071
        • HsinChu MacKay Memorial Hospital
      • Taipei, Taiwan, 10002
        • National Taiwan University Hospital
      • Taipei, Taiwan, 10449
        • Department of Pediatrics, MacKay Memorial Hospital
      • Taoyuan, Taiwan, 333
        • Chang Gung Memorial Hospital- Linkou
  • United Kingdom
      • London, United Kingdom, SW17 0QT
        • St George's University Hospital NHS Foundation Trust

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

4 weeks to 4 months (Child)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

Part 1: Observational Stage

  • The infant is less than or equal to (<=) 4 months of age at enrollment and asymptomatic for acute respiratory illness (ARI)-like symptoms requiring medical intervention at the time of consent to participate in the study
  • At least 1 parent/caregiver must be able to use the respiratory syncytial virus (RSV) mobile application (App) at home via his/her own Android/iOS electronic device (compatible with RSV mobile App)
  • The participant must have been assessed per local public health practice and considered not to have Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection

Part 2: Interventional Stage

  • The infant is 28 days and if prematurely born infant (that is [i.e.], less than [<] 37 weeks and 0 days of gestation at birth) is at least 3 months postnatal age
  • The participant has been diagnosed with RSV infection using a rapid molecular-based diagnostic assay
  • The participant weighs more than 2.4 kilogram (kg)
  • The participant has an acute respiratory illness as evaluated by the investigator
  • Except for the RSV-related illness, the participant must be medically stable in case of allowed co-morbid conditions
  • The participant must have been assessed per local public health practice and considered not to have SARS-CoV-2 infection during this respiratory infection

Exclusion Criteria:

Part 1: Observational Stage

  • The participant has any physical abnormality which limits the ability to collect regular nasal specimens
  • The participant is receiving chronic home oxygen therapy at enrollment (applicable to both parts)

Part 2: Interventional Stage

  • The participant is <3 months postnatal age at screening and was born prematurely (i.e., <37 weeks and 0 days of gestation) or if the participant weights <2.4 kg
  • The participant has a QT interval with Fridericia's correction (QTcF) greater than (>) 450 milliseconds per the machine read (mean of triplicate) parameter result confirmed by repeat triplicate Electrocardiogram (ECG) recording during screening
  • The participant is considered by the investigator to be immunocompromised, whether due to underlying medical condition or medical therapy
  • The participant has had any of: a) Confirmed SARS-CoV-2 infection (test positive) during the four weeks prior to randomization, or b) Close contact with a person with Coronavirus Disease 2019 (COVID-19) (test confirmed or suspected SARS-CoV-2 infection) within 14 days prior to randomization

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Other: Part 1-Observational Phase
Participants will not receive any intervention in the observation phase. All infants will be closely monitored for early signs and symptoms of Respiratory Syncytial Virus (RSV) disease using a mobile RSV application on the parent/caregiver's mobile phone, upon an alert, the RSV will be tested, if RSV negative participants (RSV [-] diagnosed at site) will return to the pre-diagnostic phase and RSV positive participants (RSV [+] diagnosed at site) can be enrolled in the interventional stage of the study after obtaining informed consent for the interventional stage at that time. RSV (+) participants whose parent(s)/caregiver(s) do not consent for enrollment in the interventional stage and participants who are screening failures in the interventional stage will enter the post-diagnostic phase of the observational stage (hospitalized or outpatients).
Other: RSV Mobile Application
Participants will not receive any intervention in observational phase of this study. Participant's respiratory symptoms will be captured by RSV mobile application installed in participant's caregiver/parent mobile phone.
Experimental: Part 2-Interventional Phase
Participants will be randomized to receive either JNJ-53718678 (for Age Group 1 (greater than or equal to [>=] 28 days and less than [<] 3 months): 2.5 milligram per kilogram [mg/kg]; for Age Group 2 (>=3 and <6 months): 3 mg/kg and for Age Group 3 (>=6 months): 4.5 mg/kg) or placebo (Age Group 1, 2 and 3) twice daily for 7 days.
Drug: Placebo
Participants in each Age Group (1,2,3) will receive matching placebo (volume placebo to match the calculated volume of the JNJ-53718678 dose) orally twice daily for 7 days.
Drug: JNJ-53718678 2.5 mg/kg
JNJ-53718678 will be administered to Age Group 1 twice daily for 7 days.
Drug: JNJ-53718678 3 mg/kg
JNJ-53718678 will be administered to Age Group 2 twice daily for 7 days.
Drug: JNJ-53718678 4.5 mg/kg
JNJ-53718678 will be administered to Age Group 3 twice daily for 7 days.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Respiratory Syncytial Virus (RSV) Viral Load-time Curve From Immediately Prior to First Dose of JNJ-53718678 Through Day 5 (AUC [Day 1-5])
Time Frame: Baseline (Day 1) up to Day 5
RSV viral load AUC was determined from immediately prior to first dose of JNJ-53718678 through Day 5. The RSV viral load was measured by quantitative reverse transcription polymerase chain reaction (qRT-PCR) assay in mid-turbinate nasal swab specimens.
Baseline (Day 1) up to Day 5

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
RSV Viral Load Over Time
Time Frame: Baseline, Days 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, and 21
RSV viral load actual values over time was measured by qRT-PCR in the nasal swab specimens collected at the clinic visits and at home.
Baseline, Days 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, and 21
Change From Baseline in RSV Viral Load Over Time
Time Frame: Baseline, Days 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, and 21
Change from baseline in RSV viral load over time was measured by qRT-PCR in the nasal swab specimens collected at the clinic visits and at home.
Baseline, Days 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, and 21
RSV Viral Load Area Under the Curve (AUC) From Immediately Prior to First Dose of Study Drug (Baseline) Through Days 3, 8, and 14
Time Frame: Baseline through Days 3, 8, and 14
RSV viral load AUC was determined by qRT-PCR assay in mid-turbinate nasal swab specimens.
Baseline through Days 3, 8, and 14
Time to Undetectable RSV Viral Load
Time Frame: Up to 21 days
Time to undetectable RSV viral load is defined as the time in hours from initiation of study treatment until the first post-baseline time point at which the virus is confirmed undetectable. A confirmed undetectable sample is defined as the first of at least two consecutive samples that are undetectable. The last obtained sample for a participant, if undetectable, is considered confirmed.
Up to 21 days
Percentage of Participants With Undetectable RSV Viral Load at Each Time Point Throughout the Study
Time Frame: Baseline, Days 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 21
Percentage of participants with undetectable RSV viral load at each time point throughout the study were reported.
Baseline, Days 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 21
Severity of Signs and Symptoms of RSV Infection Assessed by Parent(s)/Caregiver(s) Pediatric RSV Electronic Severity and Outcome Rating System (PRESORS)
Time Frame: Baseline, Days 3, 5, 8, 14, and 21
The severity of signs and symptoms of RSV infection (breathing problems, retractions, tachypnea, breathing sounds, cough, tachycardia, nasal secretions, sleep disturbance, crying, illness behavior, feeding problems, and dehydration) were assessed by the PRESORS. PRESORS is a questionnaire by parent(s)/caregiver(s) recording presence and severity of signs and symptoms of RSV disease. PRESORS score consisted of 12-items, each score ranges from 0 to 3. A summary score was derived (mean of the item scores) which also ranges from 0 to 3. The higher the score, the worse the symptom.
Baseline, Days 3, 5, 8, 14, and 21
Change From Baseline in Parent(s)/Caregiver(s) PRESORS Scores
Time Frame: Baseline, Day 3, 5, 8, 14, 21
PRESORS is a questionnaire recording presence and severity of signs and symptoms of RSV disease. PRESORS score consisted of 12-items, each item score ranges from 0 to 3. A summary score was derived (mean of the item scores) which also ranges from 0 to 3. The higher the score, the worse the symptom.
Baseline, Day 3, 5, 8, 14, 21
Change From Baseline in Clinician PRESORS Score
Time Frame: Baseline, Day 3, 5, 8, 14, 21
Change from baseline in clinician (for concepts: activity level, sleep disturbance, breathing problems, retractions, tachypnea, feeding problem, cough, nasal secretions, wheezing, dehydration) PRESORS scores was reported. PRESORS is a questionnaire recording presence and severity of signs and symptoms of RSV disease. PRESORS score consisted of 10-items, each item score ranges from 0 to 3. A summary score was derived (mean of the item scores) which also ranges from 0 to 3. The higher the score, the worse the symptom.
Baseline, Day 3, 5, 8, 14, 21
Time to Resolution of RSV Symptoms
Time Frame: Up to 21 days
Time to resolution from first dose of study drug until the first time of resolution of all RSV Symptoms (breathing problems, retractions, tachypnea, breathing sounds, cough, tachycardia, nasal secretions, sleep disturbance, crying, illness behavior, feeding problems, and dehydration). Resolution occurs when all symptoms from the caregiver reported outcomes (ObsRO) are scored as none or mild (score of 0 or 1, respectively) for at least 24 hours.
Up to 21 days
Time to Improvement on Overall Health
Time Frame: Up to 21 days
Time to improvement based on general questions on overall health was reported. Time from first dose of study drug until first time status of improvement of RSV symptoms reported as "very much improved" or "much improved" based on response to question 'Would you say the child's RSV symptoms have improved, are about the same or are worse than when the child entered the study'.
Up to 21 days
Percentage of Participants With Worsening or Improvement of RSV Disease
Time Frame: On Days 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21
Percentage of participants with worsening or improvement of RSV disease based on general questions on overall health was reported. Improvement is defined improvement of RSV symptoms reported as "very much improved" or "much improved" based on response to question 'Would you say the child's RSV symptoms have improved, are about the same or are worse than when the child entered the study'.
On Days 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21
Time to Return to Pre-RSV Health as Rated by the Parent(s)/Caregiver(s)
Time Frame: Up to 21 days
Time to return to pre-RSV health as rated by the parent(s)/caregiver(s) was evaluated. It is the time from first dose of study drug until the time to return to pre-RSV disease level.
Up to 21 days
Percentage of Participants Who Require (re)Hospitalization During Treatment and Follow-up
Time Frame: Up to Day 31
Percentage of participants who require (re)hospitalization during treatment and follow-up were reported.
Up to Day 31
Percentage of Participants With Adverse Events as a Measure of Safety and Tolerability
Time Frame: Up to Day 31
An adverse event is any untoward medical event that occurs in a participant administered an investigational product, and it does not necessarily indicate only events with clear causal relationship with the relevant investigational product.
Up to Day 31
Percentage of Participants With Abnormal Chemistry Laboratory Findings
Time Frame: Up to Day 31
Percentage of participants with abnormal chemistry laboratory findings (alanine aminotransferase [ALT; Grade 1 and 4], aspartate aminotransferase [AST; Grade 1], and Hyperkalemia [Grade 1 and 2]) were reported based on Division of Microbiology and Infectious Diseases (DMID) toxicity grading scale. DMID toxicity grades ranges from 1 to 4. Grade 1 = mild: transient or mild discomfort (<48 hours); no medical intervention/therapy required. Grade 2 = moderate: mild to moderate limitation in activity - some assistance may be needed; no or minimal medical intervention/therapy required. Grade 3 = severe: marked limitation in activity, some assistance usually required; medical intervention/therapy required, hospitalizations possible. Grade 4 = life-threatening or death: Extreme limitation in activity, significant assistance required; significant medical intervention/therapy required, hospitalization or hospice care probable.
Up to Day 31
Percentage of Participants With Abnormal Urinalysis Laboratory Findings
Time Frame: Up to Day 31
Percentage of participants with abnormal urinalysis (Hematuria- Grade 1) laboratory finding was reported based on DMID toxicity grading scale. DMID toxicity grades ranges from 1 to 4. Grade 1 = mild: transient or mild discomfort (<48 hours); no medical intervention/therapy required. Grade 2 = moderate: mild to moderate limitation in activity - some assistance may be needed; no or minimal medical intervention/therapy required. Grade 3 = severe: marked limitation in activity, some assistance usually required; medical intervention/therapy required, hospitalizations possible. Grade 4 = life-threatening or death: Extreme limitation in activity, significant assistance required; significant medical intervention/therapy required, hospitalization or hospice care probable.
Up to Day 31
Percentage of Participants With Abnormal Electrocardiograms (ECGs) Findings
Time Frame: Up to Day 31
Percentage of participants with abnormal ECGs findings were reported. Parameters for abnormal ECG findings were QT interval corrected for heart rate (QTc) according to Bazett's formula (QTcB) Interval ([450 milliseconds {ms}, 480 ms], [480 ms, 500 ms], and [more than 500 ms]), QTc according to Fridericia's formula (QTcF) Interval ([450 ms, 480 ms], [480 ms, 500 ms], and [more than 500 ms]), change from baseline for QTcB Interval ([30; 60] ms, and greater than [>] 60 ms), and for QTcF Interval ([30; 60] ms, and >60 ms).
Up to Day 31
Percentage of Participants With Vital Sign Abnormalities
Time Frame: Up to Day 31
Percentage of participants with vital signs (systolic blood pressure [SBP], diastolic blood pressure [DBP], pulse rate, respiratory rate, body temperature and peripheral capillary oxygen saturation [SpO2]) abnormalities (abnormally low [ABL] and abnormally high [ABH]) were reported.
Up to Day 31
Plasma Concentrations of JNJ-53718678
Time Frame: Day 1 and Day 3
No data was collected for pharmacokinetic (PK) analysis due to small sample size. Hence, no results are reported.
Day 1 and Day 3

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Janssen Research & Development, LLC

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Janssen Research & Development, LLC Clinical Trial, Janssen Research & Development, LLC

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 10, 2019

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
May 15, 2021

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 15, 2021

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 23, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 23, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 28, 2019

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 31, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CR108647
  • 2019-001509-25 (EudraCT Number)
  • 53718678RSV2006 (Other Identifier: Janssen Research & Development, LLC)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

The data sharing policy of the Janssen Pharmaceutical Companies of Johnson & Johnson is available at www.janssen.com/clinicaltrials/ transparency. As noted on this site, requests for access to the study data can be submitted through Yale Open Data Access (YODA) Project site at yoda.yale.edu

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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