Clinical trial NCT00565266: Asthma Clinical Research Network (ACRN) Trial - Tiotropium Bromide as an Alternative to Increased Inhaled Corticosteroid in Patients Inadequately Controlled on a Lower Dose of Inhaled Corticosteroid (TALC)
Official title: Asthma Clinical Research Network (ACRN) Trial - Tiotropium Bromide as an Alternative to Increased Inhaled Corticosteroid in Patients Inadequately Controlled on a Lower Dose of Inhaled Corticosteroid (TALC)
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE3
Conditions: Asthma
Lead sponsor: Milton S. Hershey Medical Center
Sponsor class: OTHER
Collaborators: name: National Heart, Lung, and Blood Institute (NHLBI)
First posted: 2007-11-29
Enrollment: 210
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Primary purpose: TREATMENT

Brief summary: Typically, people with asthma are initially prescribed a low dose of inhaled corticosteroid (ICS) medication to control asthma symptoms. If a low dose of ICS is ineffective at controlling symptoms, the addition of a second controller medication is recommended. This study will examine the effectiveness of the medication tiotropium bromide combined with a low dose of ICS at maintaining asthma control in people with moderately severe asthma.

Detailed description: National and international asthma treatment guidelines recommend ICS as the initial controller therapy for people with asthma who are in need of daily treatment with a controller medication. If treatment with low to moderate doses of ICS is not sufficient to gain and maintain asthma control, current guidelines recommend adding a second controller medication rather than increasing the dose of ICS. Current options for the second medication include a long-acting beta-agonist, a leukotriene modifier, or theophylline. It is possible that other medications, not yet tested, could fill the role of the second controller medication. Tiotropium bromide is a medication that is used to treat chronic obstructive pulmonary disease (COPD). It works by relaxing and opening the air passages to the lungs to make breathing easier. For people with asthma, the addition of tiotropium bromide may be a good option as a second controller medication. The purpose of this study is to determine if combining tiotropium bromide with a low dose of ICS is more effective than doubling the dose of ICS in people with moderately severe asthma. This study will also examine whether the addition of tiotropium bromide to low dose ICS is as effective as the addition of a long-acting beta-agonist at maintaining asthma control.

This study will begin with a 4-week run-in period during which participants will be monitored while they use an inhaler containing a low dose of ICS medication. Next, participants will be assigned to take part in either the TALC study or the Best Adjustment Strategy for Asthma in Long Term (BASALT) study, which is a separate Asthma Clinical Research Network (ACRN) study.

All TALC participants will then undergo three 16-week treatment periods, which will include the following:

* tiotropium bromide inhalation powder 18 mcg once daily (Tio) plus beclomethasone dipropionate 80 mcg twice daily (1xICS)
* salmeterol xinafoate inhalation powder 50 mcg twice daily (LABA) plus beclomethasone dipropionate 80 mcg twice daily (1xICS)
* beclomethasone dipropionate 160 mcg twice daily (2xICS)

The order in which the three treatment periods will occur will be randomly assigned for each participant. Each of the three 16-week treatment periods will consist of 14 weeks of treatment followed by a 2-week washout period, in which participants will receive a single does of ICS. Study visits will occur at baseline and Weeks 2 and 4 of the 4-week run-in period, and at Weeks 4, 9, 14, and 16 of each 16-week treatment period. Spirometry tests to measure lung function will occur at each study visit and exhaled nitric oxide testing and questionnaires to assess asthma control and symptoms will occur at most visits. During study visits at Week 4 of the run-in period and Week 14 of each treatment period, lung function measurements, sputum collection, questionnaires to assess asthma quality-of-life, and measurements of sleep and daytime alertness will all occur. Participants will also record asthma symptoms, peak flow measurements, and medication usage in a daily diary.

Eligibility criteria: Inclusion Criteria for TALC and BASALT Studies:

* Clinical history consistent with asthma
* Forced expiratory volume in one second (FEV1) greater than 40% of predicted value
* Asthma confirmed by one of the following two criteria:

  1. Beta-agonist reversibility to 4 puffs albuterol of at least 12% OR
  2. Methacholine provocative concentration at 20% (PC20) of 8 milligrams per milliliter (mg/mL) or less when not on an inhaled corticosteroid (ICS), or 16 mg/mL or less when on an ICS
* Need for daily controller therapy (i.e., ICS, leukotriene modifiers, and/or long-acting beta-agonists) based on one or more of the following criteria:

  1. Received prescription for or used asthma controller within the 12 months prior to study entry OR
  2. Experienced symptoms for more than twice a week and not on asthma controller
* If on inhaled steroids (any drug at any dose not exceeding the equivalent of 1000 micrograms (mcg) of fluticasone daily), participant must have been on a stable dose for at least 2 weeks prior to study entry
* Non-smoker (i.e., total lifetime smoking history less than 10 pack-years; no smoking for at least 1 year prior to study entry)
* Willing to use an effective form of birth control throughout the study

Inclusion Criteria for TALC Study:

* Ability to measure morning (AM) peak expiratory flow (PEF) on schedule using electronic peak flow meter (EPFM) and to complete the study diary correctly at least 75% of the time during the interval between Weeks 2 and 4 of the run-in period
* Adherence with study medication dosing at least 75% of the time during the interval between Weeks 2 and 4 of the run-in period
* No asthma exacerbation requiring use of oral corticosteroids or additional asthma medications (including an increased dose of ICS) during the run-in period
* FEV1 greater than 40% of the predicted value

Exclusion Criteria for BASALT and TALC Studies:

* Lung disease other than asthma, including chronic obstructive pulmonary disease (COPD) and chronic bronchitis
* Established or suspected diagnosis of vocal cord dysfunction
* Significant medical illness other than asthma
* History of respiratory tract infection within the 4 weeks prior to study entry
* History of a significant asthma exacerbation within the 4 weeks prior to study entry
* History of life-threatening asthma requiring treatment with intubation and mechanical ventilation in the 5 years prior to study entry
* Hyposensitization therapy other than an established maintenance regimen
* Inability to coordinate use of the delivery devices used in the study, based on the opinion of the investigator or clinical coordinator
* Pregnant

Exclusion Criteria for TALC Study:

* Inability to coordinate use of the medication delivery devices used in the study, based on the opinion of the investigator or clinical coordinator
* Presence at Week 4 of the run-in period of any of the exclusion criteria stipulated for Week 0 of the run-in period (Note: Respiratory tract infections that do not cause the participant to meet exacerbation criteria are not considered exclusionary.)

Primary outcomes:
measure: Change Between Week 14 and Week 0 in the Morning (AM) Peak Expiratory Flow (PEF)
timeFrame: AM PEF was measured daily during each of the three 14-week treatment periods. The primary analysis constructed the change between week 14 and week 0.
Secondary outcomes:
measure: Change Between Week 14 and Week 0 in the Forced Expiratory Volume in One Second (FEV1)
timeFrame: FEV1 was measured on four occasions during each of the three 14-week treatment periods. The primary analysis constructed the change between week 14 and week 0.
measure: Change Between Week 14 and Week 0 in Asthma Symptoms
timeFrame: Asthma symptoms were measured daily during each of the three 14-week treatment periods. The primary analysis constructed the change between week 14 and week 0.
measure: Change Between Week 14 and Week 0 in the Asthma Quality-of-life Questionnaire Score
timeFrame: The asthma quality-of-life questionnaire score was measured on four occasions during each of the three 14-week treatment periods. The primary analysis constructed the change between week 14 and week 0.
measure: Change Between Week 14 and Week 0 in the Asthma Control Questionnaire Score
timeFrame: The asthma control questionnaire score was measured on four occasions during each of the three 14-week treatment periods. The primary analysis constructed the change between week 14 and week 0.
measure: Change Between Week 14 and Week 0 in the Albuterol Rescue Puffs Per Day
timeFrame: Albuterol rescue puffs were measured daily during each of the three 14-week treatment periods. The primary analysis constructed the change between week 14 and week 0.
measure: Change Between Week 14 and Week 0 in the Proportion of Asthma Control Days
timeFrame: An asthma control day was determined daily during each of the three 14-week treatment periods. The primary analysis constructed the change between week 14 and week 0.
Other outcomes:
Locations:
city: San Diego
country: United States
facility: University of California, San Diego
state: California
city: San Francisco
country: United States
facility: University of California, San Francisco
state: California
city: Denver
country: United States
facility: National Jewish Medical and Research Center
state: Colorado
city: Boston
country: United States
facility: Brigham & Women's Hospital
state: Massachusetts
city: Saint Louis
country: United States
facility: Washington University, St. Louis
state: Missouri
city: New York
country: United States
facility: Columbia University Health Sciences
state: New York
city: Durham
country: United States
facility: Duke University Medical Center
state: North Carolina
city: Winston-Salem
country: United States
facility: Wake Forest University Health Sciences
state: North Carolina
city: Galveston
country: United States
facility: University of Texas Medical Branch
state: Texas
city: Madison
country: United States
facility: University of Wisconsin, Madison
state: Wisconsin
Study officials:
affiliation: University of California, San Francisco
name: Homer A. Boushey, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: National Jewish Health
name: Richard J. Martin, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Brigham and Women's Hospital
name: Elliot Israel, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: University of California, San Diego
name: Stephen I. Wasserman, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Washington University School of Medicine
name: Mario Castro, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Columbia University
name: Emily A. DiMango, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Wake Forest University Health Sciences
name: Stephen P. Peters, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: Duke University
name: Monica Kraft, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: University of Texas
name: William J. Calhoun, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: University of Wisconsin, Madison
name: Robert F. Lemanske, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: National Jewish Health
name: Reuben M. Cherniack, MD
role: STUDY_CHAIR
References:
citation: Peters SP, Kunselman SJ, Icitovic N, Moore WC, Pascual R, Ameredes BT, Boushey HA, Calhoun WJ, Castro M, Cherniack RM, Craig T, Denlinger L, Engle LL, DiMango EA, Fahy JV, Israel E, Jarjour N, Kazani SD, Kraft M, Lazarus SC, Lemanske RF Jr, Lugogo N, Martin RJ, Meyers DA, Ramsdell J, Sorkness CA, Sutherland ER, Szefler SJ, Wasserman SI, Walter MJ, Wechsler ME, Chinchilli VM, Bleecker ER; National Heart, Lung, and Blood Institute Asthma Clinical Research Network. Tiotropium bromide step-up therapy for adults with uncontrolled asthma. N Engl J Med. 2010 Oct 28;363(18):1715-26. doi: 10.1056/NEJMoa1008770. Epub 2010 Sep 19.
citation: Lugogo N, Green CL, Agada N, Zhang S, Meghdadpour S, Zhou R, Yang S, Anstrom KJ, Israel E, Martin R, Lemanske RF Jr, Boushey H, Lazarus SC, Wasserman SI, Castro M, Calhoun W, Peters SP, DiMango E, Chinchilli V, Kunselman S, King TS, Icitovic N, Kraft M. Obesity's effect on asthma extends to diagnostic criteria. J Allergy Clin Immunol. 2018 Mar;141(3):1096-1104. doi: 10.1016/j.jaci.2017.04.047. Epub 2017 Jun 15.
citation: Peters SP, Bleecker ER, Kunselman SJ, Icitovic N, Moore WC, Pascual R, Ameredes BT, Boushey HA, Calhoun WJ, Castro M, Cherniack RM, Craig T, Denlinger LC, Engle LL, Dimango EA, Israel E, Kraft M, Lazarus SC, Lemanske RF Jr, Lugogo N, Martin RJ, Meyers DA, Ramsdell J, Sorkness CA, Sutherland ER, Wasserman SI, Walter MJ, Wechsler ME, Chinchilli VM, Szefler SJ; National Heart, Lung, and Blood Institute's Asthma Clinical Research Network. Predictors of response to tiotropium versus salmeterol in asthmatic adults. J Allergy Clin Immunol. 2013 Nov;132(5):1068-1074.e1. doi: 10.1016/j.jaci.2013.08.003. Epub 2013 Sep 29.
citation: Sutherland ER, Goleva E, Jackson LP, Stevens AD, Leung DY. Vitamin D levels, lung function, and steroid response in adult asthma. Am J Respir Crit Care Med. 2010 Apr 1;181(7):699-704. doi: 10.1164/rccm.200911-1710OC. Epub 2010 Jan 14.