Study of the Efficacy and Safety of MK-0476 in Japanese Pediatric Participants With Seasonal Allergic Rhinitis (MK-0476-519)

June 5, 2024 updated by: Organon and Co

A Phase III, Double-Blind, Randomized, Placebo-Controlled Cross-over Clinical Trial to Study the Efficacy and Safety of MK-0476 in Japanese Pediatric Subjects With Seasonal Allergic Rhinitis

This study will evaluate the efficacy and safety of montelukast (MK-0476) in the treatment of Japanese pediatric participants with seasonal allergic rhinitis (SAR). The primary hypothesis of this study is that montelukast is superior to placebo in the treatment of nasal symptoms in SAR.

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.
220

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 3

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

10 years to 15 years (Child)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Weight: ≥ 25 kg
  • Height: ≥ 125 cm
  • Able to record symptoms in a diary
  • Has had allergic rhinitis symptoms [Japanese Cedar (JC) pollinosis]
  • Tested positive for JC pollen specific immunoglobulin E (IgE) antibody assay

Exclusion Criteria:

  • Has nasal findings that would interfere with evaluating nasal congestion symptoms
  • Past or present medical history of bronchial asthma
  • Medical history of allergies except allergic rhinitis and has possibility of dramatically worsening of these symptoms induced by JC pollen exposure

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: Crossover Assignment
  • Masking: Triple

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.
Experimental: Montelukast/Placebo
Participants receive montelukast 5 mg chewable tablets for 7 days during Period 1 and receive placebo chewable tablets for 7 days during Period 2. There is a 7-day washout period between Periods 1 and 2.
Drug: Montelukast
Montelukast 5 mg chewable tablets, taken orally once daily at bedtime for 7 days
Other Names:
  • montelukast sodium
Drug: Placebo
Matching placebo chewable tablets, taken orally once daily at bedtime for 7 days
Experimental: Placebo/Montelukast
Participants receive placebo chewable tablets for 7 days during Period 1 and receive montelukast 5 mg chewable tablets for 7 days during Period 2. There is a 7-day washout period between Periods 1 and 2.
Drug: Montelukast
Montelukast 5 mg chewable tablets, taken orally once daily at bedtime for 7 days
Other Names:
  • montelukast sodium
Drug: Placebo
Matching placebo chewable tablets, taken orally once daily at bedtime 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
Change From Baseline in Total Nasal Symptom Score (TNSS) Averaged During 3 Hours of Exposure
Time Frame: Baseline and after 3 hours of pollen exposure on Day 7 of each treatment period
The TNSS is the sum of the three nasal symptom scores for nasal congestion, nasal discharge and sneezing. Participants completed a questionnaire about their nasal symptoms. Score ranged from 0 to 4 for each of the three nasal symptoms, with a total possible score ranging from 0 to 12 and a higher score indicating more severe nasal symptoms. The baseline TNSS was assessed on Day 7 of a treatment period prior to entering the chamber room. The post-baseline TNSS was assessed on Day 7 of a treatment period during 3 hours of exposure to Japanes cedar (JC) pollen in the chamber room, as an average of measurements at 30, 60, 90, 120, 150 and 180 minutes. Analysis was done by study drug as taken.
Baseline and after 3 hours of pollen exposure on Day 7 of each treatment period
Percentage of Participants Who Experience at Least One Adverse Event
Time Frame: Up to 5 weeks
An adverse event is defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the study drug, whether or not considered related to the use of the product. Participants were monitored for occurrence adverse events for up to 14 days after last dose of study drug. Analysis was done by study drug as taken.
Up to 5 weeks

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
Change From Baseline in Weighted TNSS Averaged During 3 Hours of Exposure
Time Frame: Baseline and after 3 hours of pollen exposure on Day 7 of each treatment period
TNSS was weighted as 2:1:1 for nasal congestion, nasal discharge and sneezing. The Weighted TNSS ranged from 0 to 16, with a higher score indicating more severe weighted total nasal symptoms. The baseline Weighted TNSS was assessed on Day 7 of a treatment period prior to entering the chamber room. The post-baseline TNSS was assessed on Day 7 of a treatment period during 3 hours of exposure to JC pollen in the chamber room, as an average of measurements at 30, 60, 90, 120, 150 and 180 minutes. Analysis was done by study drug as taken.
Baseline and after 3 hours of pollen exposure on Day 7 of each treatment period
Change From Baseline in Nasal Congestion Score Averaged During 3 Hours of Exposure
Time Frame: Baseline and after 3 hours of pollen exposure on Day 7 of each treatment period
The Nasal Congestion Score was assessed as 0 = No symptoms of nasal congestion to 4 = Completely obstructed all day, with a possible Nasal Congestion Score ranging from 0 to 4 and a higher score indicating more severe nasal congestion. The baseline Nasal Congestion Score was assessed on Day 7 of a treatment period prior to entering the chamber room. The post-baseline Nasal Congestion Score was assessed on Day 7 of a treatment period during 3 hours of exposure to JC pollen in the chamber room, as an average of measurements at 30, 60, 90, 120, 150 and 180 minutes. Analysis was done by study drug as taken.
Baseline and after 3 hours of pollen exposure on Day 7 of each treatment period
Change From Baseline in Nasal Discharge Score Averaged During 3 Hours of Exposure
Time Frame: Baseline and after 3 hours of pollen exposure on Day 7 of each treatment period
The Nasal Discharge Score was assessed as 0 = 0 times participant blew his/her nose to 4 = 21 or more times participant blew his/her nose, with a possible Nasal Discharge Score ranging from 0 to 4 and a higher score indicating more severe nasal discharge. The baseline Nasal Discharge Score was assessed on Day 7 of a treatment period prior to entering the chamber room. The post-baseline Nasal Discharge Score was assessed on Day 7 of a treatment period during 3 hours of exposure to JC pollen in the chamber room, as an average of measurements at 30, 60, 90, 120, 150 and 180 minutes. Analysis was done by study drug as taken.
Baseline and after 3 hours of pollen exposure on Day 7 of each treatment period
Change From Baseline in Sneezing Score Averaged During 3 Hours of Exposure
Time Frame: Baseline and after 3 hours of pollen exposure on Day 7 of each treatment period
The Sneezing Score was assessed as 0 = 0 times participant sneezed to 4 = 21 or more times participant sneezed, with a possible Sneezing Score ranging from 0 to 4 and a higher score indicating more severe sneezing. The baseline Sneezing Score was assessed on Day 7 of a treatment period prior to entering the chamber room. The post-baseline Sneezing Score was assessed on Day 7 of a treatment period during 3 hours of exposure to JC pollen in the chamber room, as an average of measurements at 30, 60, 90, 120, 150 and 180 minutes. Analysis was done by study drug as taken.
Baseline and after 3 hours of pollen exposure on Day 7 of each treatment period
Change From Baseline in TNSS at 30, 60, 90, 120, 150 and 180 Minutes After Entering Chamber Room
Time Frame: Baseline and at 30, 60, 90, 120, 150 and 180 minutes after entering chamber room on Day 7 of a treatment period
The TNSS is the sum of the three nasal symptom scores for nasal congestion, nasal discharge and sneezing. The possible TNSS ranged from 0 to 12, with a higher score indicting more severe total nasal symptoms. The baseline TNSS was assessed on Day 7 of a treatment period prior to entering the chamber room. The post-baseline TNSS was assessed on Day 7 of a treatment period at 30, 60, 90, 120, 150 and 180 minutes after entering the chamber room. Analysis was done by study drug as taken.
Baseline and at 30, 60, 90, 120, 150 and 180 minutes after entering chamber room on Day 7 of a treatment period
Change From Baseline in Weighted TNSS at 30, 60, 90, 120, 150 and 180 Minutes After Entering Chamber Room
Time Frame: Baseline and at 30, 60, 90, 120, 150 and 180 minutes after entering chamber room on Day 7 of a treatment period
TNSS was weighted as 2:1:1 for nasal congestion, nasal discharge and sneezing. The possible Weighted TNSS ranged from 0 to 16, with a higher score indicating more severe total nasal symptoms. The baseline TNSS was assessed on Day 7 of a treatment period prior to entering the chamber room. The post-baseline Weighted TNSS was assessed on Day 7 of a treatment period at 30, 60, 90, 120, 150 and 180 minutes after entering the chamber room. Analysis was done by study drug as taken.
Baseline and at 30, 60, 90, 120, 150 and 180 minutes after entering chamber room on Day 7 of a treatment period
Change From Baseline in Nasal Congestion Score at 30, 60, 90, 120, 150 and 180 Minutes After Entering Chamber Room
Time Frame: Baseline and at 30, 60, 90, 120, 150 and 180 minutes after entering chamber room on Day 7 of a treatment period
The Nasal Congestion Score was assessed as 0 = No symptoms of nasal congestion to 4 = Completely obstructed all day. The possible Nasal Congestion Score ranged from 0 to 4, with a higher score indicating more severe nasal congestion.The Nasal Congestion Score was assessed on Day 7 prior to entering the chamber room and at 30, 60, 90, 120, 150 and 180 minutes after entering the chamber room. Analysis was done by study drug as taken.
Baseline and at 30, 60, 90, 120, 150 and 180 minutes after entering chamber room on Day 7 of a treatment period
Change From Baseline in Nasal Discharge Score at 30, 60, 90, 120, 150 and 180 Minutes After Entering Chamber Room
Time Frame: Baseline and at 30, 60, 90, 120, 150 and 180 minutes after entering chamber room on Day 7 of a treatment period
The Nasal Discharge Score was assessed as 0 = 0 times participant blew his/her nose to 4 = 21 or more times participant blew his/her nose. The possible Nasal Discharge Score ranged from 0 to 4, with a higher score indicating more severe nasal discharge.The Nasal Discharge Score was assessed on Day 7 prior to entering the chamber room and at 30, 60, 90, 120, 150 and 180 minutes after entering the chamber room. Analysis was done by study drug as taken.
Baseline and at 30, 60, 90, 120, 150 and 180 minutes after entering chamber room on Day 7 of a treatment period
Change From Baseline in Sneezing Score at 30, 60, 90, 120, 150 and 180 Minutes After Entering Chamber Room
Time Frame: Baseline and at 30, 60, 90, 120, 150 and 180 minutes after entering chamber room on Day 7 of a treatment period
The Sneezing Score was assessed as 0 = 0 times participant sneezed to 4 = 21 or more times participant sneezed. The possible Sneezing Score ranged from 0 to 4, with a higher score indicating more severe sneezing. The Sneezing Score was assessed on Day 7 prior to entering the chamber room and at 30, 60, 90, 120, 150 and 180 minutes after entering the chamber room. Analysis was done by study drug as taken.
Baseline and at 30, 60, 90, 120, 150 and 180 minutes after entering chamber room on Day 7 of a treatment period

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.
Organon and Co

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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.
June 10, 2013

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.
September 1, 2013

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.
September 1, 2013

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).
May 16, 2013

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.
May 16, 2013

First Posted (Estimated)

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.
May 20, 2013

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.
June 17, 2024

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.
June 5, 2024

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.
February 1, 2022

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.
  • 0476-519
  • 132232 (Registry Identifier: JAPIC-CTI)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

https://www.merck.com/clinical-trials/pdf/ProcedureAccessClinicalTrialData.pdf

Study Data/Documents

  1. CSR Synopsis

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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