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A Dose-Ranging Study of the Safety and Effectiveness of MK-8237 in the Treatment of House Dust Mite (HDM) Induced Allergic Rhinitis/Rhinoconjunctivitis in Adults (MK-8237-003/P07627)

Primary Purpose

Rhinitis, Allergic, Perennial, Rhinitis, Allergic, Nonseasonal

Status
Completed
Phase
Phase 2
Locations
Study Type
Interventional
Intervention
Placebo
MK-8237 6 DU
MK-8237 12 DU
Sponsored by
ALK-Abelló A/S
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Rhinitis, Allergic, Perennial

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • History of allergic rhinitis/rhinoconjunctivitis to house dust of 1 year duration or more (with or without asthma)
  • If female of childbearing potential, has a negative urine pregnancy test at screening and agrees to remain abstinent or use (or have their partner use) 2 acceptable methods of birth control within the projected duration of the study.

Exclusion Criteria:

  • Sensitized and regularly exposed to animal dander and molds, (e.g. present in the home, job, etc.)
  • Sensitized and regularly exposed to seasonal allergens (i.e., birch or grass pollen)
  • Immunosuppressive treatment within 3 months prior to screening (except steroids for allergic and asthma symptoms)
  • History of chronic urticaria and/or angioedema within 2 years prior to screening
  • Previous immunotherapy treatment with any HDM allergen for more than 1 month within 3 years prior to screening
  • Ongoing treatment with any specific immunotherapy
  • History of anaphylaxis with cardiorespiratory symptoms with prior immunotherapy, due to an unknown cause or to an inhalant allergen
  • Unstable uncontrolled/partially controlled or severe asthma, or life-threatening asthma attack or an occurrence of any clinical deterioration of asthma that resulted in emergency treatment, hospitalization due to asthma, or treatment with systemic corticosteroids (but allowing short-acting beta agonists [SABA]) within 3 months prior to screening
  • Asthma requiring medium- or high-dose inhaled corticosteroid (ICS) within 12 months prior to screening
  • Chronic sinusitis within 2 years prior to screening
  • Nasal condition that could confound the efficacy or safety assessments (e.g., nasal polyps)
  • Pregnant, breastfeeding or planning to become pregnant during the study
  • Participation in a different investigational study at any site during the same time frame of this study
  • Direct association with the administration of the study or a family member of the study staff

Sites / Locations

    Arms of the Study

    Arm 1

    Arm 2

    Arm 3

    Arm Type

    Placebo Comparator

    Experimental

    Experimental

    Arm Label

    Placebo

    MK-8237 6 Developmental Units (DU)

    MK-8237 12 DU

    Arm Description

    Placebo rapidly dissolving tablet administered sublingually once daily (q.d.), at approximately the same time each day, for 24 weeks

    MK-8237 6 DU rapidly dissolving tablet administered sublingually q.d., at approximately the same time each day, for 24 weeks

    MK-8237 12 DU rapidly dissolving tablet administered sublingually q.d., at approximately the same time each day, for 24 weeks

    Outcomes

    Primary Outcome Measures

    Average Total Nasal Symptom Score (TNSS) During Environmental Exposure Chamber (EEC) Challenge Session at Week 24
    The average total TNSS included the evaluation of 4 nasal symptoms: itchy nose, blocked nose, runny nose, and sneezing. The endpoint was based on participant diary entries over the last 4 hours of the EEC challenge session at Week 24. TNSS was the total of scores for the 4 nasal symptoms, each scored on a 4-point rating scale (0=no symptoms; 1=mild symptoms; 2=moderate symptoms; 3=severe symptoms). The total TNSS ranged from 0 to 12 points. The 24-week TNSS was analyzed using the analysis of covariance (ANCOVA) model with treatment and baseline TNSS as covariates and expressed as a least squares mean with 95% confidence interval. A decrease in TNSS for participants receiving either dose of MK-8237 compared to placebo indicated an improvement in symptoms.

    Secondary Outcome Measures

    Average TNSS During EEC Challenge Session at Week 16
    The average total TNSS included the evaluation of 4 nasal symptoms: itchy nose, blocked nose, runny nose, and sneezing. The endpoint was based on participant diary entries over the last 4 hours of the EEC challenge session at Week 16. TNSS was the total of scores for the 4 nasal symptoms, each scored on a 4-point rating scale (0=no symptoms; 1=mild symptoms; 2=moderate symptoms; 3=severe symptoms). The total TNSS ranged from 0 to 12 points. The Week 16 TNSS was analyzed using the ANCOVA model with treatment and baseline TNSS as covariates and expressed as a least squares mean with 95% confidence interval. A decrease in TNSS for participants receiving either dose of MK-8237 compared to placebo indicated an improvement in symptoms.
    Average TNSS During EEC Challenge Session at Week 8
    The average total TNSS included the evaluation of 4 nasal symptoms: itchy nose, blocked nose, runny nose, and sneezing. The endpoint was based on participant diary entries over the last 4 hours of the EEC challenge session at Week 8. TNSS was the total of scores for the 4 nasal symptoms, each scored on a 4-point rating scale (0=no symptoms; 1=mild symptoms; 2=moderate symptoms; 3=severe symptoms). The total TNSS ranged from 0 to 12 points. The Week 8 TNSS was analyzed using the ANCOVA model with treatment and baseline TNSS as covariates and expressed as a least squares mean with 95% confidence interval. A decrease in TNSS for participants receiving either dose of MK-8237 compared to placebo indicated an improvement in symptoms.
    Average Total Symptom Score (TSS [TNSS + TOSS]) During EEC Challenge Session at Week 24
    The average total TSS included the evaluation of the 4 nasal symptoms of the TNSS (itchy nose, blocked nose, runny nose, and sneezing) plus the 2 ocular symptoms of the TOSS (gritty/feeling/red/itchy eyes and watery eyes). The endpoint was based on participant diary entries over the last 4 hours of the EEC challenge session at Week 24. TSS was the total of scores for the 4 nasal symptoms and 2 ocular symptoms, each scored on a 4-point rating scale (0=no symptoms; 1=mild symptoms; 2=moderate symptoms; 3=severe symptoms). The total TSS ranged from 0 to 18 points. The Week 24 TSS was analyzed using the ANCOVA model with treatment and baseline TSS as covariates and expressed as a least squares mean with 95% confidence interval. A decrease in TSS for participants receiving either dose of MK-8237 compared to placebo indicated an improvement in symptoms.
    Average TSS (TNSS + TOSS) During EEC Challenge Session at Week 16
    The average total TSS included the evaluation of the 4 nasal symptoms of the TNSS (itchy nose, blocked nose, runny nose, and sneezing) plus the 2 ocular symptoms of the TOSS (gritty/feeling/red/itchy eyes and watery eyes). The endpoint was based on participant diary entries over the last 4 hours of the EEC challenge session at Week 16. TSS was the total of scores for the 4 nasal symptoms and 2 ocular symptoms, each scored on a 4-point rating scale (0=no symptoms; 1=mild symptoms; 2=moderate symptoms; 3=severe symptoms). The total TSS ranged from 0 to 18 points. The Week 16 TSS was analyzed using the ANCOVA model with treatment and baseline TSS as covariates and expressed as a least squares mean with 95% confidence interval. A decrease in TSS for participants receiving either dose of MK-8237 compared to placebo indicated an improvement in symptoms.
    Average TSS (TNSS + TOSS) During EEC Challenge Session at Week 8
    The average total TSS included the evaluation of the 4 nasal symptoms of the TNSS (itchy nose, blocked nose, runny nose, and sneezing) plus the 2 ocular symptoms of the TOSS (gritty/feeling/red/itchy eyes and watery eyes). The endpoint was based on participant diary entries over the last 4 hours of the EEC challenge session at Week 8. TSS was the total of scores for the 4 nasal symptoms and 2 ocular symptoms, each scored on a 4-point rating scale (0=no symptoms; 1=mild symptoms; 2=moderate symptoms; 3=severe symptoms). The total TSS ranged from 0 to 18 points. The Week 8 TSS was analyzed using the ANCOVA model with treatment and baseline TSS as covariates and expressed as a least squares mean with 95% confidence interval. A decrease in TSS for participants receiving either dose of MK-8237 compared to placebo indicated an improvement in symptoms.
    Average Total Ocular Symptom Score (TOSS) During EEC Challenge Session at Week 24
    The average total TOSS included the evaluation of 2 ocular symptoms: gritty/feeling/red/itchy eyes and watery eyes. The endpoint was based on participant diary entries over the last 4 hours of the EEC challenge session at Week 24. TOSS was the total of scores for the 2 ocular symptoms, each scored on a 4-point rating scale (0=no symptoms; 1=mild symptoms; 2=moderate symptoms; 3=severe symptoms). The total TOSS ranged from 0 to 6 points. The Week 24 TOSS was analyzed using the ANCOVA model with treatment and baseline TOSS as covariates and expressed as a least squares mean with 95% confidence interval. A decrease in TOSS for participants receiving either dose of MK-8237 compared to placebo indicated an improvement in symptoms.
    Average TOSS During EEC Challenge Session at Week 16
    The average total TOSS included the evaluation of 2 ocular symptoms: gritty/feeling/red/itchy eyes and watery eyes. The endpoint was based on participant diary entries over the last 4 hours of the EEC challenge session at Week 16. TOSS was the total of scores for the 2 ocular symptoms, each scored on a 4-point rating scale (0=no symptoms; 1=mild symptoms; 2=moderate symptoms; 3=severe symptoms). The total TOSS ranged from 0 to 6 points. The Week 16 TOSS was analyzed using the ANCOVA model with treatment and baseline TOSS as covariates and expressed as a least squares mean with 95% confidence interval. A decrease in TOSS for participants receiving either dose of MK-8237 compared to placebo indicated an improvement in symptoms.
    Average TOSS During EEC Challenge Session at Week 8
    The average total TOSS included the evaluation of 2 ocular symptoms: gritty/feeling/red/itchy eyes and watery eyes. The endpoint was based on participant diary entries over the last 4 hours of the EEC challenge session at Week 8. TOSS was the total of scores for the 2 ocular symptoms, each scored on a 4-point rating scale (0=no symptoms; 1=mild symptoms; 2=moderate symptoms; 3=severe symptoms). The total TOSS ranged from 0 to 6 points. The Week 8 TOSS was analyzed using the ANCOVA model with treatment and baseline TOSS as covariates and expressed as a least squares mean with 95% confidence interval. A decrease in TOSS for participants receiving either dose of MK-8237 compared to placebo indicated an improvement in symptoms.
    HDM-specific Immunoglobulin E (IgE) Levels at Week 8
    Dermatophagoides pteronyssinus (D. pteronyssinus) and Dermatophagoides farinae (D. farinae) serum IgE levels were measured using the Immunocap® assay at Week 8. IgE levels were expressed in Log 10 scale kilo units/Liter (kU/L). Analysis was based on the analysis of variance parametric (ANOVA) model with treatment as the fixed effect and reported as mean IgE with a standard deviation.
    HDM-specific Immunoglobulin G4 (IgG4) Levels at Week 8
    D. pteronyssinus and D. farinae serum IgG4 levels were measured using the Immunocap® assay at Week 8. IgG4 levels were expressed in Log 10 scale milligrams/Liter (mg/L). Analysis was based on the ANOVA model with treatment as the fixed effect and reported as mean IgG4 with a standard deviation.
    Change From Baseline in HDM-specific IgE Levels at Week 8
    D. pteronyssinus and D. farinae serum IgE levels were measured using the Immunocap® assay at baseline and Week 8. IgE levels were expressed in Log 10 scale kU/L. Mean Week 8 IgE levels were compared to the mean IgE levels at baseline. Analysis was based on the ANOVA model with treatment as the fixed effect and reported as a least squares mean with 95% confidence interval.
    Change From Baseline in HDM-specific IgG4 Levels at Week 8
    D. pteronyssinus and D. farinae serum IgG4 levels were measured using the Immunocap® assay at baseline and Week 8. IgG4 levels were expressed in Log 10 scale mg/L. Mean Week 8 IgG4 levels were compared to the mean IgG4 levels at baseline. Analysis was based on the ANOVA model with treatment as the fixed effect and reported as a least squares mean with 95% confidence interval.
    Percentage of Participants Who Experienced At Least One Adverse Event (AE)
    An AE was defined as any untoward medical occurrence in a participant administered a pharmaceutical product and which did not necessarily have to have a causal relationship with this treatment. An AE could therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product/protocol-specified procedure, whether or not considered related to the medicinal product/protocol-specified procedure. Any worsening of a preexisting condition temporally associated with the use of the product was also an AE. A serious adverse event (SAE) was an AE that resulted in death, was life threatening, resulted in persistent or significant disability/incapacity, resulted in or prolonged an existing inpatient hospitalization, was a congenital anomaly/birth defect, was a cancer, was associated with an overdose, was another important medical event.
    Percentage of Participants Who Discontinued Study Drug Due to an AE
    The percentage of participants who had study treatment stopped due to an AE. Discontinuations were reported for all randomized participants who received ≥1 dose of study treatment.

    Full Information

    First Posted
    July 17, 2012
    Last Updated
    September 14, 2017
    Sponsor
    ALK-Abelló A/S
    Collaborators
    Merck Sharp & Dohme LLC
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    1. Study Identification

    Unique Protocol Identification Number
    NCT01644617
    Brief Title
    A Dose-Ranging Study of the Safety and Effectiveness of MK-8237 in the Treatment of House Dust Mite (HDM) Induced Allergic Rhinitis/Rhinoconjunctivitis in Adults (MK-8237-003/P07627)
    Official Title
    A Phase IIb, Randomized, Placebo-Controlled, Dose-Finding Clinical Trial to Study the Safety and Efficacy of MK-8237 Using an Environmental Exposure Chamber in Subjects With House Dust Induced Allergic Rhinitis/Rhinoconjunctivitis
    Study Type
    Interventional

    2. Study Status

    Record Verification Date
    September 2017
    Overall Recruitment Status
    Completed
    Study Start Date
    October 2012 (undefined)
    Primary Completion Date
    August 2013 (Actual)
    Study Completion Date
    August 2013 (Actual)

    3. Sponsor/Collaborators

    Responsible Party, by Official Title
    Sponsor
    Name of the Sponsor
    ALK-Abelló A/S
    Collaborators
    Merck Sharp & Dohme LLC

    4. Oversight

    Data Monitoring Committee
    No

    5. Study Description

    Brief Summary
    The purpose of this study is to evaluate the dose-related effectiveness, the safety and the tolerability of MK-8237, compared to placebo, in the treatment of house dust mite (HDM)-induced allergic rhinitis/rhinoconjunctivitis in adults. The primary hypothesis is that administration of MK-8237, compared to placebo, results in dose-related improvement in the average total nasal symptom score (TNSS) determined during environmental exposure chamber (EEC) challenge.

    6. Conditions and Keywords

    Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
    Rhinitis, Allergic, Perennial, Rhinitis, Allergic, Nonseasonal

    7. Study Design

    Primary Purpose
    Treatment
    Study Phase
    Phase 2
    Interventional Study Model
    Parallel Assignment
    Masking
    ParticipantInvestigator
    Allocation
    Randomized
    Enrollment
    124 (Actual)

    8. Arms, Groups, and Interventions

    Arm Title
    Placebo
    Arm Type
    Placebo Comparator
    Arm Description
    Placebo rapidly dissolving tablet administered sublingually once daily (q.d.), at approximately the same time each day, for 24 weeks
    Arm Title
    MK-8237 6 Developmental Units (DU)
    Arm Type
    Experimental
    Arm Description
    MK-8237 6 DU rapidly dissolving tablet administered sublingually q.d., at approximately the same time each day, for 24 weeks
    Arm Title
    MK-8237 12 DU
    Arm Type
    Experimental
    Arm Description
    MK-8237 12 DU rapidly dissolving tablet administered sublingually q.d., at approximately the same time each day, for 24 weeks
    Intervention Type
    Drug
    Intervention Name(s)
    Placebo
    Intervention Description
    Placebo rapidly dissolving tablets administered sublingually once daily
    Intervention Type
    Drug
    Intervention Name(s)
    MK-8237 6 DU
    Other Intervention Name(s)
    SCH 900237
    Intervention Description
    MK-8237 6 DU rapidly dissolving tablets administered sublingually once daily
    Intervention Type
    Drug
    Intervention Name(s)
    MK-8237 12 DU
    Other Intervention Name(s)
    SCH 900237
    Intervention Description
    MK-8237 12 DU rapidly dissolving tablets administered sublingually once daily
    Primary Outcome Measure Information:
    Title
    Average Total Nasal Symptom Score (TNSS) During Environmental Exposure Chamber (EEC) Challenge Session at Week 24
    Description
    The average total TNSS included the evaluation of 4 nasal symptoms: itchy nose, blocked nose, runny nose, and sneezing. The endpoint was based on participant diary entries over the last 4 hours of the EEC challenge session at Week 24. TNSS was the total of scores for the 4 nasal symptoms, each scored on a 4-point rating scale (0=no symptoms; 1=mild symptoms; 2=moderate symptoms; 3=severe symptoms). The total TNSS ranged from 0 to 12 points. The 24-week TNSS was analyzed using the analysis of covariance (ANCOVA) model with treatment and baseline TNSS as covariates and expressed as a least squares mean with 95% confidence interval. A decrease in TNSS for participants receiving either dose of MK-8237 compared to placebo indicated an improvement in symptoms.
    Time Frame
    Week 24
    Secondary Outcome Measure Information:
    Title
    Average TNSS During EEC Challenge Session at Week 16
    Description
    The average total TNSS included the evaluation of 4 nasal symptoms: itchy nose, blocked nose, runny nose, and sneezing. The endpoint was based on participant diary entries over the last 4 hours of the EEC challenge session at Week 16. TNSS was the total of scores for the 4 nasal symptoms, each scored on a 4-point rating scale (0=no symptoms; 1=mild symptoms; 2=moderate symptoms; 3=severe symptoms). The total TNSS ranged from 0 to 12 points. The Week 16 TNSS was analyzed using the ANCOVA model with treatment and baseline TNSS as covariates and expressed as a least squares mean with 95% confidence interval. A decrease in TNSS for participants receiving either dose of MK-8237 compared to placebo indicated an improvement in symptoms.
    Time Frame
    Week 16
    Title
    Average TNSS During EEC Challenge Session at Week 8
    Description
    The average total TNSS included the evaluation of 4 nasal symptoms: itchy nose, blocked nose, runny nose, and sneezing. The endpoint was based on participant diary entries over the last 4 hours of the EEC challenge session at Week 8. TNSS was the total of scores for the 4 nasal symptoms, each scored on a 4-point rating scale (0=no symptoms; 1=mild symptoms; 2=moderate symptoms; 3=severe symptoms). The total TNSS ranged from 0 to 12 points. The Week 8 TNSS was analyzed using the ANCOVA model with treatment and baseline TNSS as covariates and expressed as a least squares mean with 95% confidence interval. A decrease in TNSS for participants receiving either dose of MK-8237 compared to placebo indicated an improvement in symptoms.
    Time Frame
    Week 8
    Title
    Average Total Symptom Score (TSS [TNSS + TOSS]) During EEC Challenge Session at Week 24
    Description
    The average total TSS included the evaluation of the 4 nasal symptoms of the TNSS (itchy nose, blocked nose, runny nose, and sneezing) plus the 2 ocular symptoms of the TOSS (gritty/feeling/red/itchy eyes and watery eyes). The endpoint was based on participant diary entries over the last 4 hours of the EEC challenge session at Week 24. TSS was the total of scores for the 4 nasal symptoms and 2 ocular symptoms, each scored on a 4-point rating scale (0=no symptoms; 1=mild symptoms; 2=moderate symptoms; 3=severe symptoms). The total TSS ranged from 0 to 18 points. The Week 24 TSS was analyzed using the ANCOVA model with treatment and baseline TSS as covariates and expressed as a least squares mean with 95% confidence interval. A decrease in TSS for participants receiving either dose of MK-8237 compared to placebo indicated an improvement in symptoms.
    Time Frame
    Week 24
    Title
    Average TSS (TNSS + TOSS) During EEC Challenge Session at Week 16
    Description
    The average total TSS included the evaluation of the 4 nasal symptoms of the TNSS (itchy nose, blocked nose, runny nose, and sneezing) plus the 2 ocular symptoms of the TOSS (gritty/feeling/red/itchy eyes and watery eyes). The endpoint was based on participant diary entries over the last 4 hours of the EEC challenge session at Week 16. TSS was the total of scores for the 4 nasal symptoms and 2 ocular symptoms, each scored on a 4-point rating scale (0=no symptoms; 1=mild symptoms; 2=moderate symptoms; 3=severe symptoms). The total TSS ranged from 0 to 18 points. The Week 16 TSS was analyzed using the ANCOVA model with treatment and baseline TSS as covariates and expressed as a least squares mean with 95% confidence interval. A decrease in TSS for participants receiving either dose of MK-8237 compared to placebo indicated an improvement in symptoms.
    Time Frame
    Week 16
    Title
    Average TSS (TNSS + TOSS) During EEC Challenge Session at Week 8
    Description
    The average total TSS included the evaluation of the 4 nasal symptoms of the TNSS (itchy nose, blocked nose, runny nose, and sneezing) plus the 2 ocular symptoms of the TOSS (gritty/feeling/red/itchy eyes and watery eyes). The endpoint was based on participant diary entries over the last 4 hours of the EEC challenge session at Week 8. TSS was the total of scores for the 4 nasal symptoms and 2 ocular symptoms, each scored on a 4-point rating scale (0=no symptoms; 1=mild symptoms; 2=moderate symptoms; 3=severe symptoms). The total TSS ranged from 0 to 18 points. The Week 8 TSS was analyzed using the ANCOVA model with treatment and baseline TSS as covariates and expressed as a least squares mean with 95% confidence interval. A decrease in TSS for participants receiving either dose of MK-8237 compared to placebo indicated an improvement in symptoms.
    Time Frame
    Week 8
    Title
    Average Total Ocular Symptom Score (TOSS) During EEC Challenge Session at Week 24
    Description
    The average total TOSS included the evaluation of 2 ocular symptoms: gritty/feeling/red/itchy eyes and watery eyes. The endpoint was based on participant diary entries over the last 4 hours of the EEC challenge session at Week 24. TOSS was the total of scores for the 2 ocular symptoms, each scored on a 4-point rating scale (0=no symptoms; 1=mild symptoms; 2=moderate symptoms; 3=severe symptoms). The total TOSS ranged from 0 to 6 points. The Week 24 TOSS was analyzed using the ANCOVA model with treatment and baseline TOSS as covariates and expressed as a least squares mean with 95% confidence interval. A decrease in TOSS for participants receiving either dose of MK-8237 compared to placebo indicated an improvement in symptoms.
    Time Frame
    Week 24
    Title
    Average TOSS During EEC Challenge Session at Week 16
    Description
    The average total TOSS included the evaluation of 2 ocular symptoms: gritty/feeling/red/itchy eyes and watery eyes. The endpoint was based on participant diary entries over the last 4 hours of the EEC challenge session at Week 16. TOSS was the total of scores for the 2 ocular symptoms, each scored on a 4-point rating scale (0=no symptoms; 1=mild symptoms; 2=moderate symptoms; 3=severe symptoms). The total TOSS ranged from 0 to 6 points. The Week 16 TOSS was analyzed using the ANCOVA model with treatment and baseline TOSS as covariates and expressed as a least squares mean with 95% confidence interval. A decrease in TOSS for participants receiving either dose of MK-8237 compared to placebo indicated an improvement in symptoms.
    Time Frame
    Week 16
    Title
    Average TOSS During EEC Challenge Session at Week 8
    Description
    The average total TOSS included the evaluation of 2 ocular symptoms: gritty/feeling/red/itchy eyes and watery eyes. The endpoint was based on participant diary entries over the last 4 hours of the EEC challenge session at Week 8. TOSS was the total of scores for the 2 ocular symptoms, each scored on a 4-point rating scale (0=no symptoms; 1=mild symptoms; 2=moderate symptoms; 3=severe symptoms). The total TOSS ranged from 0 to 6 points. The Week 8 TOSS was analyzed using the ANCOVA model with treatment and baseline TOSS as covariates and expressed as a least squares mean with 95% confidence interval. A decrease in TOSS for participants receiving either dose of MK-8237 compared to placebo indicated an improvement in symptoms.
    Time Frame
    Week 8
    Title
    HDM-specific Immunoglobulin E (IgE) Levels at Week 8
    Description
    Dermatophagoides pteronyssinus (D. pteronyssinus) and Dermatophagoides farinae (D. farinae) serum IgE levels were measured using the Immunocap® assay at Week 8. IgE levels were expressed in Log 10 scale kilo units/Liter (kU/L). Analysis was based on the analysis of variance parametric (ANOVA) model with treatment as the fixed effect and reported as mean IgE with a standard deviation.
    Time Frame
    Week 8
    Title
    HDM-specific Immunoglobulin G4 (IgG4) Levels at Week 8
    Description
    D. pteronyssinus and D. farinae serum IgG4 levels were measured using the Immunocap® assay at Week 8. IgG4 levels were expressed in Log 10 scale milligrams/Liter (mg/L). Analysis was based on the ANOVA model with treatment as the fixed effect and reported as mean IgG4 with a standard deviation.
    Time Frame
    Week 8
    Title
    Change From Baseline in HDM-specific IgE Levels at Week 8
    Description
    D. pteronyssinus and D. farinae serum IgE levels were measured using the Immunocap® assay at baseline and Week 8. IgE levels were expressed in Log 10 scale kU/L. Mean Week 8 IgE levels were compared to the mean IgE levels at baseline. Analysis was based on the ANOVA model with treatment as the fixed effect and reported as a least squares mean with 95% confidence interval.
    Time Frame
    Baseline and Week 8
    Title
    Change From Baseline in HDM-specific IgG4 Levels at Week 8
    Description
    D. pteronyssinus and D. farinae serum IgG4 levels were measured using the Immunocap® assay at baseline and Week 8. IgG4 levels were expressed in Log 10 scale mg/L. Mean Week 8 IgG4 levels were compared to the mean IgG4 levels at baseline. Analysis was based on the ANOVA model with treatment as the fixed effect and reported as a least squares mean with 95% confidence interval.
    Time Frame
    Time Frame: Baseline and Week 8
    Title
    Percentage of Participants Who Experienced At Least One Adverse Event (AE)
    Description
    An AE was defined as any untoward medical occurrence in a participant administered a pharmaceutical product and which did not necessarily have to have a causal relationship with this treatment. An AE could therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product/protocol-specified procedure, whether or not considered related to the medicinal product/protocol-specified procedure. Any worsening of a preexisting condition temporally associated with the use of the product was also an AE. A serious adverse event (SAE) was an AE that resulted in death, was life threatening, resulted in persistent or significant disability/incapacity, resulted in or prolonged an existing inpatient hospitalization, was a congenital anomaly/birth defect, was a cancer, was associated with an overdose, was another important medical event.
    Time Frame
    From first dose to last dose of treatment plus 2 weeks of follow-up (Up to 26 weeks)
    Title
    Percentage of Participants Who Discontinued Study Drug Due to an AE
    Description
    The percentage of participants who had study treatment stopped due to an AE. Discontinuations were reported for all randomized participants who received ≥1 dose of study treatment.
    Time Frame
    From first dose to last dose of treatment (Up to 24 weeks)

    10. Eligibility

    Sex
    All
    Minimum Age & Unit of Time
    18 Years
    Accepts Healthy Volunteers
    No
    Eligibility Criteria
    Inclusion Criteria: History of allergic rhinitis/rhinoconjunctivitis to house dust of 1 year duration or more (with or without asthma) If female of childbearing potential, has a negative urine pregnancy test at screening and agrees to remain abstinent or use (or have their partner use) 2 acceptable methods of birth control within the projected duration of the study. Exclusion Criteria: Sensitized and regularly exposed to animal dander and molds, (e.g. present in the home, job, etc.) Sensitized and regularly exposed to seasonal allergens (i.e., birch or grass pollen) Immunosuppressive treatment within 3 months prior to screening (except steroids for allergic and asthma symptoms) History of chronic urticaria and/or angioedema within 2 years prior to screening Previous immunotherapy treatment with any HDM allergen for more than 1 month within 3 years prior to screening Ongoing treatment with any specific immunotherapy History of anaphylaxis with cardiorespiratory symptoms with prior immunotherapy, due to an unknown cause or to an inhalant allergen Unstable uncontrolled/partially controlled or severe asthma, or life-threatening asthma attack or an occurrence of any clinical deterioration of asthma that resulted in emergency treatment, hospitalization due to asthma, or treatment with systemic corticosteroids (but allowing short-acting beta agonists [SABA]) within 3 months prior to screening Asthma requiring medium- or high-dose inhaled corticosteroid (ICS) within 12 months prior to screening Chronic sinusitis within 2 years prior to screening Nasal condition that could confound the efficacy or safety assessments (e.g., nasal polyps) Pregnant, breastfeeding or planning to become pregnant during the study Participation in a different investigational study at any site during the same time frame of this study Direct association with the administration of the study or a family member of the study staff
    Overall Study Officials:
    First Name & Middle Initial & Last Name & Degree
    Medical Director
    Organizational Affiliation
    Merck Sharp & Dohme LLC
    Official's Role
    Study Director

    12. IPD Sharing Statement

    Citations:
    PubMed Identifier
    25636947
    Citation
    Nolte H, Maloney J, Nelson HS, Bernstein DI, Lu S, Li Z, Kaur A, Zieglmayer P, Zieglmayer R, Lemell P, Horak F. Onset and dose-related efficacy of house dust mite sublingual immunotherapy tablets in an environmental exposure chamber. J Allergy Clin Immunol. 2015 Jun;135(6):1494-501.e6. doi: 10.1016/j.jaci.2014.12.1911. Epub 2015 Jan 27.
    Results Reference
    background
    PubMed Identifier
    32926419
    Citation
    Fortescue R, Kew KM, Leung MST. Sublingual immunotherapy for asthma. Cochrane Database Syst Rev. 2020 Sep 14;9(9):CD011293. doi: 10.1002/14651858.CD011293.pub3.
    Results Reference
    derived
    PubMed Identifier
    30323863
    Citation
    Roth-Walter F, Schmutz R, Mothes-Luksch N, Lemell P, Zieglmayer P, Zieglmayer R, Jensen-Jarolim E. Clinical efficacy of sublingual immunotherapy is associated with restoration of steady-state serum lipocalin 2 after SLIT: a pilot study. World Allergy Organ J. 2018 Oct 1;11(1):21. doi: 10.1186/s40413-018-0201-8. eCollection 2018.
    Results Reference
    derived
    PubMed Identifier
    29656145
    Citation
    Bernstein DI, Kleine-Tebbe J, Nelson HS, Bardelas JA Jr, Sussman GL, Lu S, Rehm D, Svanholm Fogh B, Nolte H. SQ house dust mite sublingual immunotherapy tablet subgroup efficacy and local application site reaction duration. Ann Allergy Asthma Immunol. 2018 Jul;121(1):105-110. doi: 10.1016/j.anai.2018.04.007. Epub 2018 Apr 12.
    Results Reference
    derived
    PubMed Identifier
    27979028
    Citation
    Zieglmayer P, Nolte H, Nelson HS, Bernstein DI, Kaur A, Jacobi H, Lemell P, Schmutz R, Zieglmayer R, Horak F. Long-term effects of a house dust mite sublingual immunotherapy tablet in an environmental exposure chamber trial. Ann Allergy Asthma Immunol. 2016 Dec;117(6):690-696.e1. doi: 10.1016/j.anai.2016.10.015.
    Results Reference
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    A Dose-Ranging Study of the Safety and Effectiveness of MK-8237 in the Treatment of House Dust Mite (HDM) Induced Allergic Rhinitis/Rhinoconjunctivitis in Adults (MK-8237-003/P07627)

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