NCT00318708

Brief Summary

Asthma can be caused by a variety of factors, including tobacco smoke, allergens, and respiratory airway infections. Many people use inhaled corticosteroid medications to treat their symptoms. These medications, however, are not effective for everyone. Clarithromycin is an antibiotic that may effectively treat asthma in these individuals. This study will evaluate the effectiveness of clarithromycin at controlling asthma symptoms.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
92

participants targeted

Target at below P25 for phase_3 asthma

Timeline
Completed

Started Jun 2006

Typical duration for phase_3 asthma

Geographic Reach
1 country

10 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 25, 2006

Completed
2 days until next milestone

First Posted

Study publicly available on registry

April 27, 2006

Completed
1 month until next milestone

Study Start

First participant enrolled

June 1, 2006

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2009

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2009

Completed
3.8 years until next milestone

Results Posted

Study results publicly available

February 4, 2013

Completed
Last Updated

March 23, 2018

Status Verified

March 1, 2018

Enrollment Period

2.8 years

First QC Date

April 25, 2006

Results QC Date

April 27, 2012

Last Update Submit

March 22, 2018

Conditions

Outcome Measures

Primary Outcomes (1)

  • Juniper Asthma Control Questionnaire (ACQ) Results

    The Juniper asthma control questionnaire (ACQ) consists of six questions answered by the asthma patient with respect to symptoms, rescue medication use, and night-time awakenings due to asthma. A seventh item in the ACQ is the percent predicted FEV1. Each of the seven items is scored from from 0 (best) to 6 (worst), and then the seven items are averaged to yield a number from 0 (best) to 6 (worst). Asthma patients needed to display an ACQ greater than or equal to 1.25 in order to be eligible for randomization. A reduction of 0.5 units or more in the ACQ over the 16 weeks of treatment is considered to be clinically significant.

    Measured every four weeks during the 16-week treatment period, with the change (week 16 minus baseline) as the primary outcome

Secondary Outcomes (6)

  • Asthma Rescue Medication Use

    the week-16 average minus the baseline-week average

  • AM Peak Expiratory Flow (PEF)

    the week-16 average minus the baseline-week average

  • Forced Expiratory Volume in One Second (FEV1)

    the week-16 value minus the baseline-value

  • Methacholine Provocative Concentration (PC20)

    the week-16 value minus the baseline-value

  • Exhaled Nitric Oxide (eNO)

    the week-16 value minus the baseline-value

  • +1 more secondary outcomes

Study Arms (2)

clarithromycin + fluticasone

EXPERIMENTAL

clarithromycin 500 mg twice daily (Biaxin) + fluticasone propionate 88 mcg twice daily (Flovent® HFA 44 mcg two puffs twice daily)

Drug: clarithromycinDrug: fluticasone propionate

placebo + fluticasone

ACTIVE COMPARATOR

placebo clarithromycin twice daily + fluticasone propionate 88 mcg twice daily (Flovent® HFA 44 mcg two puffs twice daily)

Drug: fluticasone propionateDrug: placebo clarithromycin

Interventions

clarithromycin 500 mg twice daily (Biaxin)

Also known as: Biaxin
clarithromycin + fluticasone

fluticasone propionate 88 mcg twice daily (Flovent® HFA 44 mcg two puffs twice daily)

Also known as: Flovent®
clarithromycin + fluticasoneplacebo + fluticasone

placebo clarithromycin twice daily

Also known as: placebo Biaxin
placebo + fluticasone

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • History of physician-diagnosed asthma
  • Methacholine PC20 less than or equal to 16 mg/ml and/or FEV1 improvement greater than or equal to 12% in response to 180 mcg albuterol
  • Stable asthma for at least 6 weeks prior to study entry
  • FEV1 greater than or equal to 60% of predicted result following 180 mcg albuterol
  • Juniper ACQ score greater than or equal to 1.5 (optimal ACQ score cut-off point for asthma that is "not well-controlled" by NIH/Global Initiative for Asthma \[GINA\] guidelines)
  • Nonsmoker (less than 10 pack-per-year lifetime smoking history and no smoking in the year prior to study entry)
  • Able to perform spirometry, as per American Thoracic Society criteria
  • % adherence with diary cards, fluticasone (monitored with Doser), and placebo pill trial (monitored electronically with Electronic Drug Exposure Monitor \[eDEM\] pill dose counter) for the final 2 weeks of the four-week run-in period
  • At Visit 1, in steroid-naïve participants, no significant adrenal suppression, defined as a plasma cortisol concentration less than 5 mcg/dL. If adrenal suppression occurs, a 250 mcg corticotropin (ACTH) stimulation test will be performed. Plasma cortisol levels will be collected at baseline, and 30 and 60 minutes after the ACTH stimulation test. Participants must have a cortisol concentration greater than 20 mcg/dL on at least one of the post-ACTH time points
  • Absence of bronchoscopy-induced exacerbation; if bronchoscopy-induced exacerbation has occurred, prednisone therapy must have stopped at least 6 weeks prior to study entry
  • Absence of respiratory tract infection; if infection has occurred, infection-related symptoms must have stopped at least 6 weeks prior to study entry
  • Has experienced no more than two exacerbations or respiratory tract infections prior to study entry
  • If female and able to conceive, willing to utilize two medically acceptable forms of contraception (one non-barrier method with single barrier method OR double barrier method)

You may not qualify if:

  • Presence of lung disease other than asthma
  • Presence of vocal cord dysfunction, due to potential confounding of ACQ score
  • Significant medical illness other than asthma
  • History of atrial or ventricular tachyarrhythmia
  • Use of any medication that has a significant interaction with clarithromycin, including herbal or alternative therapies
  • Asthma exacerbation within 6 weeks of the screening visit or during the run-in period prior to bronchoscopy
  • Use of systemic steroids or change in dose of controller therapy within 6 weeks of the screening visit
  • Inability, in the opinion of the study investigator, to coordinate use of dry powder or metered-dose inhaler or to comply with medication regimens
  • Inability or unwillingness to perform required study procedures
  • Prolonged heart rate corrected QT-interval (greater than 450 msec in women and greater than 430 msec in men) on echocardiogram (ECG) at study entry
  • Low potassium or magnesium levels (based on local Asthma Clinical Research Network laboratory definitions)
  • Abnormal elevation of liver function tests (AST, ALT, total bilirubin, or alkaline phosphatase)
  • Abnormal prothrombin time (PT) or partial thromboplastin time (PTT) results
  • Reduced creatinine clearance
  • Contraindication to bronchoscopy, as determined by medical history or physical examination
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (10)

University of California, San Diego

San Diego, California, 92093, United States

Location

University of California, San Francisco

San Francisco, California, 94143, United States

Location

National Jewish Medical and Research Center

Denver, Colorado, 80206, United States

Location

Brigham & Women's Hospital

Boston, Massachusetts, 02115, United States

Location

Washington University, St. Louis

St Louis, Missouri, 63130, United States

Location

Columbia University Medical Center

New York, New York, 10032, United States

Location

Duke University Medical Center

Durham, North Carolina, 27710, United States

Location

Wake Forest University Health Sciences

Winston-Salem, North Carolina, 27157, United States

Location

University of Texas Medical Branch

Galveston, Texas, 77555, United States

Location

University of Wisconsin, Madison

Madison, Wisconsin, 53706, United States

Location

Related Publications (1)

  • Sutherland ER, King TS, Icitovic N, Ameredes BT, Bleecker E, Boushey HA, Calhoun WJ, Castro M, Cherniack RM, Chinchilli VM, Craig TJ, Denlinger L, DiMango EA, Fahy JV, Israel E, Jarjour N, Kraft M, Lazarus SC, Lemanske RF Jr, Peters SP, Ramsdell J, Sorkness CA, Szefler SJ, Walter MJ, Wasserman SI, Wechsler ME, Chu HW, Martin RJ; National Heart, Lung and Blood Institute's Asthma Clinical Research Network. A trial of clarithromycin for the treatment of suboptimally controlled asthma. J Allergy Clin Immunol. 2010 Oct;126(4):747-53. doi: 10.1016/j.jaci.2010.07.024.

Related Links

MeSH Terms

Conditions

Asthma

Interventions

ClarithromycinFluticasone

Condition Hierarchy (Ancestors)

Bronchial DiseasesRespiratory Tract DiseasesLung Diseases, ObstructiveLung DiseasesRespiratory HypersensitivityHypersensitivity, ImmediateHypersensitivityImmune System Diseases

Intervention Hierarchy (Ancestors)

ErythromycinMacrolidesPolyketidesLactonesOrganic ChemicalsAndrostadienesAndrostenesAndrostanesSteroidsFused-Ring CompoundsPolycyclic Compounds

Limitations and Caveats

Participants underwent endobronchial biopsy for characterization of lower airway status for M pneumoniae or C pneumoniae. The target sample size was 72 positives and 72 negatives. Only 80 and 12 were recruited, respectively.

Results Point of Contact

Title
Vernon M. Chinchilli, PhD
Organization
Penn State Hershey College of Medicine

Study Officials

  • William J. Calhoun, MD

    University of Texas, Galveston

    PRINCIPAL INVESTIGATOR
  • Mario Castro, MD

    Washington University School of Medicine

    PRINCIPAL INVESTIGATOR
  • Robert F. Lemanske, MD

    University of Wisconsin, Madison

    PRINCIPAL INVESTIGATOR
  • Richard J. Martin, MD

    National Jewish Health

    PRINCIPAL INVESTIGATOR
  • Elliot Israel, MD

    Brigham and Women's Hospital

    PRINCIPAL INVESTIGATOR
  • Stephen P. Peters, MD, PhD

    Wake Forest University Health Sciences

    PRINCIPAL INVESTIGATOR
  • Homer A. Boushey, MD

    University of California, San Francsico

    PRINCIPAL INVESTIGATOR
  • Stephen I. Wasserman, MD

    University of California, San Diego

    PRINCIPAL INVESTIGATOR
  • Emily DiMango, MD

    Columbia University

    PRINCIPAL INVESTIGATOR
  • Monica Kraft, MD

    Duke University

    PRINCIPAL INVESTIGATOR
  • Reuben M Cherniack, MD

    National Jewish Health

    STUDY CHAIR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Distinguished Professor and Chair, Department of Public Health Sciences

Study Record Dates

First Submitted

April 25, 2006

First Posted

April 27, 2006

Study Start

June 1, 2006

Primary Completion

April 1, 2009

Study Completion

April 1, 2009

Last Updated

March 23, 2018

Results First Posted

February 4, 2013

Record last verified: 2018-03

Locations