- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00632502
Neutrophilic Asthma Study With Navarixin (MK-7123, SCH 527123) (MK-7123-017)(COMPLETED)
December 10, 2018 updated by: Merck Sharp & Dohme LLC
Safety of SCH 527123 in Subjects With Neutrophilic Asthma
4-Week Safety Study in Subjects with Neutrophilic Asthma
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
Effect of treatment with navarixin (MK-7123, SCH 527123) on sputum neutrophils and asthma symptoms
Study Type
Interventional
Enrollment (Actual)
37
Phase
- Phase 2
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
Ages Eligible for Study
18 years to 70 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- 18 to <=70 years of age, either sex, any race.
- Induced sputum neutrophil count >=40% of total white blood cells and <10 million/mL at Screening.
- Documented diagnosis of asthma (within past 5 years), determined by at least one of the following: >=12% and 200 mL improvement in Forced Expiratory Volume in 1 second (FEV1) post-bronchodilator, and/or airway hyperresponsiveness (eg, positive methacholine challenge <8 mg/mL).
- Nonsmoker or previous smoker with cumulative smoking history less than 20 pack-years (pack-year = 20 cigarettes smoked daily for 1 year). Previous smokers may not have smoked within 1 year prior to Screening.
- Must not have had an exacerbation of asthma for 4 weeks prior to Screening and must be on a stable medication regimen for asthma at least 4 weeks prior to Screening.
- Must be receiving >=800 mcg/day of beclomethasone dipropionate (BDP) or equivalent for at least 3 months prior to Screening (and on stable dose for at least 4 weeks prior to Screening).
- Must be willing to give written informed consent to participate in the study
- Must be capable of complying with the dosing regimen, adhere to the visit schedule, and participate in all treatment procedures, including sputum induction.
- Female subject of childbearing potential must have a negative serum pregnancy test at Screening and must be using a medically acceptable, highly effective, adequate form of birth control (ie, failure rate <1% per year when used consistently and correctly) prior to Screening and agree to continue using it while in the study (Screening and Treatment Periods). Medically acceptable, highly effective forms of birth control are hormonal implants, oral contraceptives, medically acceptable prescribed intrauterine devices (IUDs), and monogamous relationship with a male partner who has had a vasectomy. Female subject who is not of childbearing potential must have a medical record of being surgically sterile (eg, hysterectomy, tubal ligation), or be at least 1 year postmenopausal. Absence of menses for at least 1 year will indicate that a female is postmenopausal. A female subject should be encouraged to continue using a highly effective method of birth control for 30 days following the end of treatment.
- Male subject must agree to use an adequate form of contraception for the duration of the study and agree to have sexual relations only with women who use a highly effective birth control method.
Exclusion Criteria:
- Chronic Obstructive Pulmonary Disease (COPD)/other relevant lung disease (other than asthma).
- 4 weeks prior to/or Screening: upper/lower respiratory tract infection.
- Prohibited medications received more recently than indicated washout prior to Screening
- Screening: Inadequate amount or difficulty producing sputum.
- Screening: Sputum neutrophil count over 10 million/mL.
- Screening: peripheral blood neutrophil (PBN) count <3000/µL.
- Post-bronchodilator FEV1 <1L.
- Clinically significant chronic infectious disease(s) (eg, Human Immunodeficiency Virus [HIV], hepatitis B or C).
- Allergy/sensitivity to study drug/excipients.
- Breast-feeding, pregnant/intends to become pregnant during study.
- Requiring mechanical ventilation for respiratory event within 6 months of Screening.
- Medical condition(s) (eg, hematologic, cardiovascular, renal, hepatic, neurologic, or metabolic) or medication that may interfere with effect of study medication.
- Within 30 days of Screening: any other investigational drug.
- Participation in any other clinical study.
- Part of the staff personnel involved with the study.
- Family member of investigational study staff.
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: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Navarixin
Navarixin (MK-7123, SCH 527123) 30 mg capsule, to be taken by mouth once daily in the morning for 4 weeks
|
Navarixin 30 mg capsule to be taken by mouth once daily in the morning for 4 weeks.
Participant choice of short-acting beta-2 agonist (salbutamol/albuterol), anticholinergic, or combination medication as needed for asthma symptoms
|
Placebo Comparator: Placebo
Placebo capsule to match navarixin, to be taken by mouth once daily in the morning for 4 weeks
|
Participant choice of short-acting beta-2 agonist (salbutamol/albuterol), anticholinergic, or combination medication as needed for asthma symptoms
Placebo capsule to match navarixin to be taken by mouth once daily in the morning for 4 weeks.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of Participants Who Maintained an Absolute Peripheral Blood Neutrophil Count >=1500/µL
Time Frame: Up to 4 weeks
|
Peripheral blood neutrophil counts were performed on Day 2 and Weeks 1, 2, 3, and 4 of the treatment period
|
Up to 4 weeks
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Mean Change From Baseline in Sputum Absolute Neutrophil Count
Time Frame: Baseline and while on study drug (up to 4 weeks)
|
Induced sputum samples were obtained at Baseline and at Weeks 2 and 4 of the treatment period.
Samples were collected before study drug administration using the nebulizer method and sent to a central laboratory for analysis.
An average was taken over all post-baseline samples collected no later than one day after the last dose of study drug.
|
Baseline and while on study drug (up to 4 weeks)
|
Mean Change From Baseline in Total Asthma Symptom Score
Time Frame: Baseline and Weeks 1, 2, 3, and 4
|
Total Asthma Symptom Score is the sum of individual symptoms of wheezing, coughing, and dyspnea assessed twice daily (morning and evening) and is recorded on a comment diary card.
Each of the symptoms receives a daily score from 0 (none) to 3 (severe), averaged over the two daily assessments.
The total score ranges from 0 to 9, with a lower score indicating less severe asthma symptoms.
|
Baseline and Weeks 1, 2, 3, and 4
|
Change From Baseline in Post-Bronchodilator Forced Expiratory Volume in One Second (FEV1)
Time Frame: Baseline and up to 4 weeks
|
Spirometry was used to measure post-bronchodilator FEV1 at Baseline and before study drug administration at Weeks 1, 2, 3, and 4. Participants received 4 puffs of bronchodilator (salbutamol hydrofluoroalkane or equivalent) at 30-second intervals and spirometry was performed 30 minutes later.
The mean change from baseline is based on the average change over all post-baseline assessments.
|
Baseline and up to 4 weeks
|
Change From Baseline in Asthma Quality of Life Questionnaire With Standardized Activities (AQLQ[S])
Time Frame: Baseline and up to 4 weeks
|
The AQLQ[S] was administered at Baseline and at Weeks 2 and 4. The assessment consists of a 32-item questionnaire covering 4 domains: symptoms, emotional functioning, impact of environmental stimuli, and activity limitation.
Each item receives a score from 1 (worst, or most affected) to 7 (not at all affected).
The score is the mean across all items, and ranges from 1 to 7. The mean change from baseline is based on the average change over all post-baseline assessments.
|
Baseline and up to 4 weeks
|
Number of Participants With an Adverse Event (AE)
Time Frame: Up to 5 weeks
|
An AE is any untoward medical occurrence in a participant administered study drug which does not necessarily have a causal relationship with the treatment.
AEs may include the onset of new illness and the exacerbation of pre-existing conditions.
|
Up to 5 weeks
|
Number of Participants With an Electrocardiogram Adverse Event
Time Frame: Week 4
|
The endpoint measured was any electrocardiogram abnormality that was reported as an AE.
An AE is any untoward medical occurrence in a participant administered study drug which does not necessarily have a causal relationship with the treatment.
AEs may include the onset of new illness and the exacerbation of pre-existing conditions.
|
Week 4
|
Number of Participants With a Laboratory Adverse Event
Time Frame: Up to 5 weeks
|
The endpoint measured was any laboratory (hematology, blood chemistry, or urinalysis) abnormality that was reported as an AE.
An AE is any untoward medical occurrence in a participant administered study drug which does not necessarily have a causal relationship with the treatment.
AEs may include the onset of new illness and the exacerbation of pre-existing conditions.
|
Up to 5 weeks
|
Number of Participants Who Discontinued the Study Because of an Adverse Event
Time Frame: Up to 5 weeks
|
An AE is any untoward medical occurrence in a participant administered study drug which does not necessarily have a causal relationship with the treatment.
AEs may include the onset of new illness and the exacerbation of pre-existing conditions.
|
Up to 5 weeks
|
Number of Participants Who Discontinued Treatment Because of an Adverse Event or a Protocol-defined Clinical Event
Time Frame: Up to 4 weeks
|
An AE is any untoward medical occurrence in a participant administered study drug which does not necessarily have a causal relationship with the treatment.
AEs may include the onset of new illness and the exacerbation of pre-existing conditions.
A protocol-defined clinical event is an asthma exacerbation requiring addition of or increase in systemic steroids, as determined by the investigator.
|
Up to 4 weeks
|
Maximum Plasma Concentration of Navarixin (Cmax)
Time Frame: Week 1, 2, 3, and 4
|
Plasma samples were to be collected at baseline and up to 24 hours after dosing with navarixin at Weeks 1, 2, 3, and 4
|
Week 1, 2, 3, and 4
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
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.
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)
May 1, 2008
Primary Completion (Actual)
February 1, 2009
Study Completion (Actual)
February 1, 2009
Study Registration Dates
First Submitted
February 29, 2008
First Submitted That Met QC Criteria
February 29, 2008
First Posted (Estimate)
March 10, 2008
Study Record Updates
Last Update Posted (Actual)
January 2, 2019
Last Update Submitted That Met QC Criteria
December 10, 2018
Last Verified
December 1, 2018
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- P05365 (Other Identifier: Merck protocol number)
- 2007-005615-26 (EudraCT Number)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
YES
IPD Plan Description
https://www.merck.com/clinical-trials/pdf/ProcedureAccessClinicalTrialData.pdf
Study Data/Documents
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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