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RETHINC: REdefining THerapy In Early COPD for the Pulmonary Trials Cooperative (RETHINC)

Primary Purpose

COPD (Chronic Obstructive Pulmonary Disease)

Status
Completed
Phase
Phase 3
Locations
United States
Study Type
Interventional
Intervention
Indacaterol/Glycopyrrolate
Placebo
Sponsored by
University of Michigan
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for COPD (Chronic Obstructive Pulmonary Disease) focused on measuring COPD, Chronic Obstructive Pulmonary Disease, Pulmonary Function Tests, Current Smoker, Former Smoker, Chronic Obstructive Airway Disease, Respiratory Symptoms

Eligibility Criteria

40 Years - 80 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  1. Subject must be able to understand and provide informed consent
  2. Age 40-80
  3. ≥10 pack-year smoking history
  4. Post-bronchodilator FEV1/FVC ratio ≥0.70
  5. Baseline CAT≥10

Exclusion Criteria:

  1. Inability or unwillingness of a participant to give written informed consent or comply with study protocol.
  2. Subject is pregnant, breast-feeding, or plans to become pregnant.
  3. Active pulmonary infection or prior pulmonary infection where antibiotic and/or steroid treatment was completed ≤4 weeks prior to enrollment.
  4. Post-BD FVC < 70% predicted
  5. A primary diagnosis of asthma established by each study investigator based on ATS/ERS criteria as previously implemented in the MACRO clinical trial.
  6. Known concomitant lung disease, pulmonary tuberculosis (unless confirmed by chest x-ray to be no longer active), or clinically significant bronchiectasis.
  7. History (or family history) of long QT syndrome.
  8. History of paroxysmal (intermittent) atrial fibrillation will be considered an exclusion. Patients with persistent atrial fibrillation as defined by continuous atrial fibrillation for at least 6 months and controlled with a rate control strategy (i.e., selective beta blocker, calcium channel blocker, pacemaker placement, digoxin or ablation therapy) for at least 6 months may be considered for inclusion. In such patients, heart rate at enrollment must be < 100/min.
  9. Patients with BMI < 15 or more than 40 kg/m2.
  10. Patients with diabetes Type I or uncontrolled diabetes Type II.
  11. Patients who, in the judgment of the investigator, have a clinically relevant laboratory abnormality or a clinically significant condition such as (but not limited to) significant renal disease, psychiatric disease, gastrointestinal disease, unstable ischemic heart disease, arrhythmia (excluding chronic stable atrial fibrillation), uncontrolled hypertension or any other condition which in the opinion of investigator might compromise patient safety or compliance, interfere with evaluation, or preclude completion of the study.
  12. Patients with any history of lung cancer.
  13. Patients with narrow-angle glaucoma, symptomatic benign prostatic hyperplasia or bladder-neck obstruction or severe renal impairment or urinary retention. Benign Prostatic Hyperplasia (BPH) patients who are stable on treatment can be considered.
  14. Any other past or current medical problems or findings from physical examination or laboratory testing that are not listed above, which, in the opinion of the investigator, may pose additional risks from participation in the study, may interfere with the participant's ability to comply with study requirements or that may impact the quality or interpretation of the data obtained from the study.
  15. Patients with a history of hypersensitivity to any of the study drugs or to drugs from similar chemical classification, including untoward reactions to sympathomimetic amines or inhaled medication or any component thereof.
  16. Patients unable to successfully use a dry powder inhaler device or perform spirometry measurements.
  17. Use of other investigational drugs at the time of enrollment or within 30 days or 5 half-lives of enrollment, whichever is longer.
  18. Patients receiving any protocol-specified prohibited medications..
  19. Patients receiving any protocol-specified prohibited COPD related medications (will be required to undergo a required washout period prior to enrollment).

Sites / Locations

  • Universityof Alabama
  • University of California
  • University of California
  • LABIOMED at Harbor-UCLA Medical Center
  • University of Illinois
  • Northwestern University
  • University of Iowa
  • Johns Hopkins University
  • University of Michigan
  • Minneapolis VA Medical Center
  • Minnesota Health partners
  • Cornell University
  • Duke University
  • Temple University
  • University of Pittsburgh
  • University of Utah

Arms of the Study

Arm 1

Arm 2

Arm Type

Active Comparator

Placebo Comparator

Arm Label

Indacaterol/Glycopyrrolate

Placebo

Arm Description

indacaterol/glycopyrrolate 27.5/15.6 mcg inhaled twice daily for 12 weeks

Placebo 27.5/15.6 mcg inhaled twice daily for 12 weeks

Outcomes

Primary Outcome Measures

Proportion (Percentage) of Individuals Who Experience a 4 Unit Improvement in St. George's Respiratory Questionnaire (SGRQ) at 12 Weeks and do Not Meet Criteria for Treatment Failure During the 12 Week Treatment Period
Measured by units of improvement in SGRQ scores at Baseline and 12 weeks, as well as review of treatment failure status at 4 weeks and 12 weeks of treatment (treatment failure is defined by an increase in lower respiratory symptoms necessitating treatment with active, long-acting inhaled bronchodilator, corticosteroids or antibiotics). A 4 unit change is the minimum clinically important difference. SGRQ has a 0 - 100 score; 0 as low symptoms (feeling better) and 100 as high symptoms (feeling worse).

Secondary Outcome Measures

Proportion of Individuals With a 2 Unit Improvement in CAT Without Treatment Failure
Proportion of individuals with a 2 unit improvement in CAT without treatment failure
Proportion of Individuals With a 1 Unit Improvement in the BDI/TDI Without Treatment Failure
Proportion of individuals with a 1 unit improvement in the BDI/TDI without treatment failure
Proportion of Individuals With Both a 4 Unit Improvement in SGRQ and a 1 Unit Improvement in BDI/TDI Without Treatment Failure
Measured by units of improvement in SGRQ scores at Baseline and 12 weeks, as well as review of treatment failure status at 4 weeks and 12 weeks of treatment (treatment failure is defined by an increase in lower respiratory symptoms necessitating treatment with active, long-acting inhaled bronchodilator, corticosteroids or antibiotics).
Mean Change in St. George's Respiratory Questionnaire (SGRQ)
Value at 12 Weeks Minus Baseline. SGRQ has a 0 - 100 score; 0 as low symptoms (feeling better) and 100 as high symptoms (feeling worse).
Mean Change in COPD Assessment Test (CAT)
Value at 12 Weeks Minus Baseline. 0 - 40; 0 as low symptoms (feeling better) and 40 as high symptoms (feeling worse).
Mean Change in Baseline Dyspnea Index (BDI)/Transition Dyspnea Index (TDI)
Value at 12 Weeks Minus Baseline.
Area Under the Curve (AUC) 0-3 Hours for FEV1
FEV1 AUC0-3h was calculated as the area under the FEV1-time curve from 0 to 3h post-dose using the trapezoidal rule, divided by the duration (3h) to report in liters.
Change From Baseline in Trough Forced Expiratory Volume Per 1 Second (FEV1) - Absolute Value
Trough FEV1 at 12 week minus trough FEV1 at baseline.
Change From Baseline in 12 Hour Trough Inspiratory Capacity - Absolute Value
Change from baseline in 12 hour trough inspiratory capacity - absolute value
Symptoms and Rescue Medication Use Based on Daily Diary
Percentage of days with symptoms (shortness of breath, chest tightness, wheezing, cough, or sputum) or use of albuterol
Treatment Failure Defined by Increase in Lower Respiratory Symptoms Necessitating Treatment With Active, Long-acting Inhaled Bronchodilator, Corticosteroids or Antibiotics
Treatment failure defined by increase in lower respiratory symptoms necessitating treatment with active, long-acting inhaled bronchodilator, corticosteroids or antibiotics
Change From Baseline in Trough FEV1 - % Predicted
Trough FEV1 at 12 week minus trough FEV1 at baseline.
Change in FEF25-75%
FEF25-75%-Forced expiratory flow over the middle one half of the FVC; the average flow from the point at which 25 percent of the FVC has been exhaled to the point at which 75 percent of the FVC has been exhaled.

Full Information

First Posted
August 12, 2016
Last Updated
April 11, 2023
Sponsor
University of Michigan
Collaborators
National Heart, Lung, and Blood Institute (NHLBI)
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1. Study Identification

Unique Protocol Identification Number
NCT02867761
Brief Title
RETHINC: REdefining THerapy In Early COPD for the Pulmonary Trials Cooperative
Acronym
RETHINC
Official Title
RETHINC: REdefining THerapy In Early COPD for the Pulmonary Trials Cooperative
Study Type
Interventional

2. Study Status

Record Verification Date
April 2023
Overall Recruitment Status
Completed
Study Start Date
August 29, 2017 (Actual)
Primary Completion Date
July 7, 2021 (Actual)
Study Completion Date
July 7, 2021 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
University of Michigan
Collaborators
National Heart, Lung, and Blood Institute (NHLBI)

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Product Manufactured in and Exported from the U.S.
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The study hypothesis is that symptomatic current and former smokers with spirometric values within the normal range (post-bronchodilator FEV1/FVC≥0.70 and post-BD FVC ≥ 70% predicted will still derive symptomatic benefit from long-acting bronchodilator therapy even though they are excluded from current GOLD guideline recommendations.
Detailed Description
RETHINC is a 12-week multicenter, randomized, double-blind, placebo-controlled, parallel-group study to assess the efficacy and safety of indacaterol/glycopyrrolate 27.5/15.6 mcg inhaled twice daily in symptomatic current and former smokers with respiratory symptoms despite preserved spirometry as defined by CAT ≥ 10 and post-bronchodilator FEV1/FVC ratio ≥0.70, respectively.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
COPD (Chronic Obstructive Pulmonary Disease)
Keywords
COPD, Chronic Obstructive Pulmonary Disease, Pulmonary Function Tests, Current Smoker, Former Smoker, Chronic Obstructive Airway Disease, Respiratory Symptoms

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
780 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Indacaterol/Glycopyrrolate
Arm Type
Active Comparator
Arm Description
indacaterol/glycopyrrolate 27.5/15.6 mcg inhaled twice daily for 12 weeks
Arm Title
Placebo
Arm Type
Placebo Comparator
Arm Description
Placebo 27.5/15.6 mcg inhaled twice daily for 12 weeks
Intervention Type
Drug
Intervention Name(s)
Indacaterol/Glycopyrrolate
Intervention Description
27.5/15.6 mcg active indacaterol/glycopyrrolate
Intervention Type
Drug
Intervention Name(s)
Placebo
Intervention Description
27.5/15.6 mcg placebo
Primary Outcome Measure Information:
Title
Proportion (Percentage) of Individuals Who Experience a 4 Unit Improvement in St. George's Respiratory Questionnaire (SGRQ) at 12 Weeks and do Not Meet Criteria for Treatment Failure During the 12 Week Treatment Period
Description
Measured by units of improvement in SGRQ scores at Baseline and 12 weeks, as well as review of treatment failure status at 4 weeks and 12 weeks of treatment (treatment failure is defined by an increase in lower respiratory symptoms necessitating treatment with active, long-acting inhaled bronchodilator, corticosteroids or antibiotics). A 4 unit change is the minimum clinically important difference. SGRQ has a 0 - 100 score; 0 as low symptoms (feeling better) and 100 as high symptoms (feeling worse).
Time Frame
Baseline and 12 weeks
Secondary Outcome Measure Information:
Title
Proportion of Individuals With a 2 Unit Improvement in CAT Without Treatment Failure
Description
Proportion of individuals with a 2 unit improvement in CAT without treatment failure
Time Frame
12 weeks
Title
Proportion of Individuals With a 1 Unit Improvement in the BDI/TDI Without Treatment Failure
Description
Proportion of individuals with a 1 unit improvement in the BDI/TDI without treatment failure
Time Frame
12 weeks
Title
Proportion of Individuals With Both a 4 Unit Improvement in SGRQ and a 1 Unit Improvement in BDI/TDI Without Treatment Failure
Description
Measured by units of improvement in SGRQ scores at Baseline and 12 weeks, as well as review of treatment failure status at 4 weeks and 12 weeks of treatment (treatment failure is defined by an increase in lower respiratory symptoms necessitating treatment with active, long-acting inhaled bronchodilator, corticosteroids or antibiotics).
Time Frame
12 weeks
Title
Mean Change in St. George's Respiratory Questionnaire (SGRQ)
Description
Value at 12 Weeks Minus Baseline. SGRQ has a 0 - 100 score; 0 as low symptoms (feeling better) and 100 as high symptoms (feeling worse).
Time Frame
Baseline, 12 weeks
Title
Mean Change in COPD Assessment Test (CAT)
Description
Value at 12 Weeks Minus Baseline. 0 - 40; 0 as low symptoms (feeling better) and 40 as high symptoms (feeling worse).
Time Frame
Baseline, 12 weeks
Title
Mean Change in Baseline Dyspnea Index (BDI)/Transition Dyspnea Index (TDI)
Description
Value at 12 Weeks Minus Baseline.
Time Frame
12 Weeks
Title
Area Under the Curve (AUC) 0-3 Hours for FEV1
Description
FEV1 AUC0-3h was calculated as the area under the FEV1-time curve from 0 to 3h post-dose using the trapezoidal rule, divided by the duration (3h) to report in liters.
Time Frame
At 12 weeks, FEV1 is measured at 1-hour intervals for 3 hours
Title
Change From Baseline in Trough Forced Expiratory Volume Per 1 Second (FEV1) - Absolute Value
Description
Trough FEV1 at 12 week minus trough FEV1 at baseline.
Time Frame
Baseline to 12 Weeks
Title
Change From Baseline in 12 Hour Trough Inspiratory Capacity - Absolute Value
Description
Change from baseline in 12 hour trough inspiratory capacity - absolute value
Time Frame
Baseline
Title
Symptoms and Rescue Medication Use Based on Daily Diary
Description
Percentage of days with symptoms (shortness of breath, chest tightness, wheezing, cough, or sputum) or use of albuterol
Time Frame
During study follow-up (Baseline to 12 weeks)
Title
Treatment Failure Defined by Increase in Lower Respiratory Symptoms Necessitating Treatment With Active, Long-acting Inhaled Bronchodilator, Corticosteroids or Antibiotics
Description
Treatment failure defined by increase in lower respiratory symptoms necessitating treatment with active, long-acting inhaled bronchodilator, corticosteroids or antibiotics
Time Frame
During study follow-up (baseline to 12 Weeks)
Title
Change From Baseline in Trough FEV1 - % Predicted
Description
Trough FEV1 at 12 week minus trough FEV1 at baseline.
Time Frame
Baseline to 12 Weeks
Title
Change in FEF25-75%
Description
FEF25-75%-Forced expiratory flow over the middle one half of the FVC; the average flow from the point at which 25 percent of the FVC has been exhaled to the point at which 75 percent of the FVC has been exhaled.
Time Frame
Baseline to 12 weeks

10. Eligibility

Sex
All
Minimum Age & Unit of Time
40 Years
Maximum Age & Unit of Time
80 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Subject must be able to understand and provide informed consent Age 40-80 ≥10 pack-year smoking history Post-bronchodilator FEV1/FVC ratio ≥0.70 Baseline CAT≥10 Exclusion Criteria: Inability or unwillingness of a participant to give written informed consent or comply with study protocol. Subject is pregnant, breast-feeding, or plans to become pregnant. Active pulmonary infection or prior pulmonary infection where antibiotic and/or steroid treatment was completed ≤4 weeks prior to enrollment. Post-BD FVC < 70% predicted A primary diagnosis of asthma established by each study investigator based on ATS/ERS criteria as previously implemented in the MACRO clinical trial. Known concomitant lung disease, pulmonary tuberculosis (unless confirmed by chest x-ray to be no longer active), or clinically significant bronchiectasis. History (or family history) of long QT syndrome. History of paroxysmal (intermittent) atrial fibrillation will be considered an exclusion. Patients with persistent atrial fibrillation as defined by continuous atrial fibrillation for at least 6 months and controlled with a rate control strategy (i.e., selective beta blocker, calcium channel blocker, pacemaker placement, digoxin or ablation therapy) for at least 6 months may be considered for inclusion. In such patients, heart rate at enrollment must be < 100/min. Patients with BMI < 15 or more than 40 kg/m2. Patients with diabetes Type I or uncontrolled diabetes Type II. Patients who, in the judgment of the investigator, have a clinically relevant laboratory abnormality or a clinically significant condition such as (but not limited to) significant renal disease, psychiatric disease, gastrointestinal disease, unstable ischemic heart disease, arrhythmia (excluding chronic stable atrial fibrillation), uncontrolled hypertension or any other condition which in the opinion of investigator might compromise patient safety or compliance, interfere with evaluation, or preclude completion of the study. Patients with any history of lung cancer. Patients with narrow-angle glaucoma, symptomatic benign prostatic hyperplasia or bladder-neck obstruction or severe renal impairment or urinary retention. Benign Prostatic Hyperplasia (BPH) patients who are stable on treatment can be considered. Any other past or current medical problems or findings from physical examination or laboratory testing that are not listed above, which, in the opinion of the investigator, may pose additional risks from participation in the study, may interfere with the participant's ability to comply with study requirements or that may impact the quality or interpretation of the data obtained from the study. Patients with a history of hypersensitivity to any of the study drugs or to drugs from similar chemical classification, including untoward reactions to sympathomimetic amines or inhaled medication or any component thereof. Patients unable to successfully use a dry powder inhaler device or perform spirometry measurements. Use of other investigational drugs at the time of enrollment or within 30 days or 5 half-lives of enrollment, whichever is longer. Patients receiving any protocol-specified prohibited medications.. Patients receiving any protocol-specified prohibited COPD related medications (will be required to undergo a required washout period prior to enrollment).
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
MeiLan Han, MD, MS
Organizational Affiliation
University of Michigan
Official's Role
Principal Investigator
First Name & Middle Initial & Last Name & Degree
Prescott Woodruff, MD, MPH
Organizational Affiliation
University of California, San Francisco
Official's Role
Principal Investigator
Facility Information:
Facility Name
Universityof Alabama
City
Birmingham
State/Province
Alabama
ZIP/Postal Code
35294
Country
United States
Facility Name
University of California
City
Los Angeles
State/Province
California
ZIP/Postal Code
90095
Country
United States
Facility Name
University of California
City
San Francisco
State/Province
California
ZIP/Postal Code
94143
Country
United States
Facility Name
LABIOMED at Harbor-UCLA Medical Center
City
Torrance
State/Province
California
ZIP/Postal Code
90502
Country
United States
Facility Name
University of Illinois
City
Chicago
State/Province
Illinois
ZIP/Postal Code
60608
Country
United States
Facility Name
Northwestern University
City
Chicago
State/Province
Illinois
ZIP/Postal Code
60657
Country
United States
Facility Name
University of Iowa
City
Iowa City
State/Province
Iowa
ZIP/Postal Code
52242
Country
United States
Facility Name
Johns Hopkins University
City
Baltimore
State/Province
Maryland
ZIP/Postal Code
21224
Country
United States
Facility Name
University of Michigan
City
Ann Arbor
State/Province
Michigan
ZIP/Postal Code
48109
Country
United States
Facility Name
Minneapolis VA Medical Center
City
Minneapolis
State/Province
Minnesota
ZIP/Postal Code
55417
Country
United States
Facility Name
Minnesota Health partners
City
Saint Paul
State/Province
Minnesota
ZIP/Postal Code
55130
Country
United States
Facility Name
Cornell University
City
New York
State/Province
New York
ZIP/Postal Code
10021
Country
United States
Facility Name
Duke University
City
Durham
State/Province
North Carolina
ZIP/Postal Code
27705
Country
United States
Facility Name
Temple University
City
Philadelphia
State/Province
Pennsylvania
ZIP/Postal Code
19140
Country
United States
Facility Name
University of Pittsburgh
City
Pittsburgh
State/Province
Pennsylvania
ZIP/Postal Code
15213
Country
United States
Facility Name
University of Utah
City
Salt Lake City
State/Province
Utah
ZIP/Postal Code
84132
Country
United States

12. IPD Sharing Statement

Citations:
PubMed Identifier
36066078
Citation
Han MK, Ye W, Wang D, White E, Arjomandi M, Barjaktarevic IZ, Brown SA, Buhr RG, Comellas AP, Cooper CB, Criner GJ, Dransfield MT, Drescher F, Folz RJ, Hansel NN, Kalhan R, Kaner RJ, Kanner RE, Krishnan JA, Lazarus SC, Maddipati V, Martinez FJ, Mathews A, Meldrum C, McEvoy C, Nyunoya T, Rogers L, Stringer WW, Wendt CH, Wise RA, Wisniewski SR, Sciurba FC, Woodruff PG; RETHINC Study Group. Bronchodilators in Tobacco-Exposed Persons with Symptoms and Preserved Lung Function. N Engl J Med. 2022 Sep 29;387(13):1173-1184. doi: 10.1056/NEJMoa2204752. Epub 2022 Sep 4.
Results Reference
derived
Links:
URL
http://www.pulmonarytrials.org/
Description
Pulmonary Trials Cooperative website, containing information regarding RETHINC and other studies included in the Pulmonary Trials Cooperative

Learn more about this trial

RETHINC: REdefining THerapy In Early COPD for the Pulmonary Trials Cooperative

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