EMPHASIS: Pilot Study of Tetomilast in Chronic Obstructive Pulmonary Disease (COPD) Associated With Emphysema

Sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc. (Industry)
Overall Status
Terminated
CT.gov ID
NCT00874497
Collaborator
(none)
84
15
2
77
5.6
0.1

Study Details

Study Description

Brief Summary

Phase 2a multicenter, randomized, double-blind, placebo-controlled study to assess the pharmacodynamics, efficacy, and safety of tetomilast in patients with emphysema.

Condition or Disease Intervention/Treatment Phase
Phase 2

Study Design

Study Type:
Interventional
Actual Enrollment :
84 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Triple (Participant, Care Provider, Investigator)
Primary Purpose:
Treatment
Official Title:
A Multi-center, Randomized, Double-blind, Placebo-controlled Pilot Study to Assess the Pharmacodynamics, Efficacy and Safety of 50 mg Tetomilast Administered as Oral Tablets in Patients With Chronic Obstructive Pulmonary Disease Associated With Emphysema THIS STUDY IS CLOSED TO ENROLLMENT AND NEW SITES
Study Start Date :
Mar 1, 2009
Actual Primary Completion Date :
Jul 1, 2015
Actual Study Completion Date :
Aug 1, 2015

Arms and Interventions

Arm Intervention/Treatment
Experimental: 1 Tetomilast

Drug: tetomilast
Oral tetomilast 25 mg once daily for 2 weeks followed by 50 mg once daily for 2 years.

Placebo Comparator: 2 Placebo

Drug: placebo
Placebo for 104 weeks (2 years)

Outcome Measures

Primary Outcome Measures

  1. Change From Baseline to Week 104 in Trough Forced Expiratory Volume in 1 Second (FEV1) [Baseline to Week 104]

    The analysis of the change from Baseline to Week 104 (last observation carried forward [LOCF]) in trough FEV1 is presented below.

  2. Rate of Change From Baseline to Week 104 in 20th Percentile of Lung Density Voxels [Baseline to Week 104]

    The analysis of the change from Baseline to Week 104 (LOCF) in the 20th percentile of lung density voxels (expressed in Hounsfield unit [HU] using quantitative HCRT) by visit and lung region is presented below.

Secondary Outcome Measures

  1. Percent Change From Baseline in Trough FEV1 From Baseline to Week 104 [Baseline to Week 104]

    The percent change for the pulmonary function tests (PFT) from baseline was calculated for each study week as follows: % change from baseline = ([value at Week X - value at baseline] /value at baseline) x 100.

  2. Density Mask Score Based on Specified Thresholds Including -950 HU [Baseline and Week 104]

    The density mask score is defined as the percentage of lung density voxels that lie below a specified threshold in the lung region of interest. The higher the percentage of the participant's lung density voxels that lie below a specified threshold, the higher the level of the participant's emphysema in the lung region under consideration. Changes in the density mask score was assessed using only a single density mask threshold of -950 HU.

  3. Rate of Change in the 20th Percentile of Lung Density Voxels Expressed in HU Units for the Whole Lung (Whole Right + Whole Left) From Baseline to Week 104 [Baseline to Week 104]

    The rate of change in lung density was calculated as the change in the 20th percentile of lung density voxels divided by the duration between the dates of measurement (month or year) where applicable. For example, if HRCT measurements are available over a span of 2 years, the annual rate of change was calculated as the difference over the 2 years divided by 2, where years between scans is given by years= floor(data of last scan - date of first scan + 1)/365.25.

  4. Observed Rate of Change in Emphysema From Baseline to Week 104 [Baseline to Week 104]

    The level of emphysema (g/L) within in a lung region is defined as the value of the selected percentile (10th, 15th, or 20th) in HU + 1000. The rate of change in the emphysema from baseline was calculated as the change in the level of emphysema from baseline to the specified visit divided by the time in years between the baseline and specified visit (i.e., [date of visit - date of baseline visit + 1]/365.25).

  5. Change From Baseline to Week 104 in Cumulative Frequency of HU [Baseline and Week 104]

    The area under the curve (AUC) is defined as the cumulative voxel frequency in HU (ie, the value of the density mask denominator). Blood samples (4 mL) for pharmacokinetic analysis were collected for the determination of plasma OPC-6535 concentrations at Predose on Day 1 and Weeks 26, 52, 78 and 104.

  6. Change From Baseline to Week 104 in Computed Tomography (CT) - Derived Lung Volumes (Total Lung Capacity [TLC] and Residual Volume [RV]) [Baseline to Week 104]

    Change from baseline in CT-derived lung volumes TLC and RV are presented in the below outcome data table.

  7. Change From Baseline to Week 104 in Trough RV/TLC [Baseline to Week 104]

    Change from Baseline in Trough RV/TLC is presented in the below outcome data table.

  8. Change From Baseline to Week 104 in Trough Inspiratory Capacity [Baseline toWeek 104]

    Change from Baseline in Trough Inspiratory Capacity is presented in the below outcome data table.

  9. Change From Baseline to Week 104 in Trough Functional Residual Capacity (FRCpleth) [Baseline to Week 104]

    Change from baseline in trough FRCpleth is presented in the below outcome data table.

  10. Change From Baseline to Week 104 in Carbon Monoxide Diffusion Capacity (DLco) [Baseline to Week 104]

    Change from Baseline in DLco is presented in the below outcome data table.

  11. Change From Baseline to Week 104 in Mean Specific Airway Resistance (sRaw) and Specific Conductance (sGaw) [Baseline to Week 104]

    Change from baseline in sRaw and sGaw is presented in the below outcome data table.

  12. Change From Baseline to Week 104 in 7-day Average Total Symptom Score of Dyspnea, Cough and Sputum [Baseline to Week 104]

    Participants used the Breathlessness, Cough, and Sputum Scale (BCSS) as the diary to daily monitor and rate their symptoms of difficulty breathing, cough, and sputum. The scale allows patients to rate each symptom on a scale of 0 (no difficultly for breathing and sputum, or unaware of coughing) to 4 (an almost constant problem for breathing and sputum, or almost constant for cough).

  13. Change From Baseline to Week 104 in 7-day Mean Number of Actuations of Rescue Medications [Baseline to Week 104]

    Participants recorded rescue medication use (albuterol and/or ipratropium bromide) in a rescue medication log.

  14. Percentage of Participants With COPD Exacerbations by Group at Week 104 [Baseline and Week 104]

    For the COPD exacerbations, baseline is defined as Randomization (Day 1). COPD exacerbations, defined as an acute worsening of COPD symptoms, were classified as being in one of 3 levels: Level I (can by self-managed by the participant); Level II (requires a physician visit), or Level III (requires a hospital visit).

  15. Percentage of Participants Experiencing a COPD Exacerbation (Level 2 or Higher) [Baseline and Week 104]

    Percentage of participants experiencing a COPD exacerbation in a level 2 or higher are presented in the below outcome data table.

Eligibility Criteria

Criteria

Ages Eligible for Study:
40 Years to 75 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • Male or female, 40-75 yrs old,inclusive.

  • Rating of greater than or equal to 1 on the Goddard scale in assessment of emphysema severity by HRCT.

  • FEV1: FVC greater than 70% predicted.

  • At least 1 documented COPD exacerbation within the past year but not within 8 weeks of randomization.

  • Current or former smokers with a cigarette smoking history of at least 20 pack-years (or equivalent) and whose smoking status has not changed 60 days prior to screening.

Exclusion Criteria:
  • Patients with asthma, active tuberculosis or bronchiectasis.

  • A respiratory tract infection within 30 days prior to the screening visit.

  • Any malignancy within the last 5 years with the exception of non-melanomatous skin cancer.

  • Uncontrolled cardiovascular, endocrine, blood, or nervous system disorders.

  • Uncontrolled condition with COPD exacerbation of level 2 or 3 in the 8-week period prior to randomization.

  • Systemic use of corticosteroids or other immunosuppressive agents within 30 days of the screening visit.

  • Subjects taking anticoagulants.

Contacts and Locations

Locations

Site City State Country Postal Code
1 UAB Lung Health Center Birmingham Alabama United States 35294
2 Los Angeles Biomedical Institute Torrance California United States 90502
3 Pulmonary Disease Specialist/PDS Research Kissimmee Florida United States 34741
4 Well Pharma Medical Research Miami Florida United States 33143
5 Florida Premier Research Institute Winter Park Florida United States 32789
6 Georgia Clinical Research Austell Georgia United States 30106
7 Illinios Lung Institute Peoria Illinois United States 61606
8 University of Louisville, Pulmonary Division Louisville Kentucky United States 40202
9 University of Nebraska Medical Center Omaha Nebraska United States 68198
10 Temple University Hospital Philadelphia Pennsylvania United States 19140
11 Spartanburg Medical Research Spartanburg South Carolina United States 29303
12 Texas Institute of Chest and Sleep Disorders, PA Houston Texas United States 77034
13 Diagnostics Research Group San Antonio Texas United States 78229
14 Pulmonary Associates of Richmond Richmond Virginia United States 23225
15 Multicare Pulmonary Specialist Tacoma Washington United States 98405

Sponsors and Collaborators

  • Otsuka Pharmaceutical Development & Commercialization, Inc.

Investigators

None specified.

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
Otsuka Pharmaceutical Development & Commercialization, Inc.
ClinicalTrials.gov Identifier:
NCT00874497
Other Study ID Numbers:
  • 197-08-250
First Posted:
Apr 2, 2009
Last Update Posted:
Apr 17, 2017
Last Verified:
Mar 1, 2017

Study Results

Participant Flow

Recruitment Details Of the 84 participants treated in the trial, 38 completed the trial and 10 participants were ongoing at the time the sponsor discontinued the trial.
Pre-assignment Detail Prior to randomization, each participant was in a 28- to 35-day screening period. Placebo was given for 14 days and a daily diary of symptom scores and actuations of albuterol/ipratropium bromide were collected.
Arm/Group Title Tetomilast 50 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
Period Title: Overall Study
STARTED 51 33
COMPLETED 23 15
NOT COMPLETED 28 18

Baseline Characteristics

Arm/Group Title Tetomilast 50 mg Placebo Total
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years) Total of all reporting groups
Overall Participants 51 33 84
Age (years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [years]
58.0
(6.04)
58.4
(7.71)
58.2
(6.70)
Sex: Female, Male (Count of Participants)
Female
24
47.1%
17
51.5%
41
48.8%
Male
27
52.9%
16
48.5%
43
51.2%

Outcome Measures

1. Primary Outcome
Title Change From Baseline to Week 104 in Trough Forced Expiratory Volume in 1 Second (FEV1)
Description The analysis of the change from Baseline to Week 104 (last observation carried forward [LOCF]) in trough FEV1 is presented below.
Time Frame Baseline to Week 104

Outcome Measure Data

Analysis Population Description
The Intent-to-Treat (ITT) population consisted of all randomized participants with non-missing baseline data and at least one post-baseline trough FEV1 measurement or evaluable High-resolution computed tomography (HRCT) scan.
Arm/Group Title Tetomilast 50 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
Measure Participants 48 28
Mean (Standard Deviation) [L]
-0.001
(0.2011)
-0.083
(0.3241)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1761
Comments P-values are based on Analysis of Covariance (ANCOVA) model of the change FEV1 from baseline to the specified study week using treatment group and current smoking status as fixed effects and the baseline FEV1 value as a covariate.
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 0.0824
Confidence Interval (2-Sided) 95%
-0.0378 to 0.2025
Parameter Dispersion Type:
Value:
Estimation Comments
2. Primary Outcome
Title Rate of Change From Baseline to Week 104 in 20th Percentile of Lung Density Voxels
Description The analysis of the change from Baseline to Week 104 (LOCF) in the 20th percentile of lung density voxels (expressed in Hounsfield unit [HU] using quantitative HCRT) by visit and lung region is presented below.
Time Frame Baseline to Week 104

Outcome Measure Data

Analysis Population Description
The ITT population consisted of all randomized participants with non-missing baseline data and at least one post-baseline trough FEV1 measurement or evaluable HRCT scan. The number of participants analyzed at Week 104 were N = 43 and 25 respectively.
Arm/Group Title Tetomilast 50 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
Measure Participants 43 25
Right Upper (n= 43, 25)
-2.639
(7.9744)
0.375
(7.1318)
Right Middle (n= 43, 25)
-1.912
(6.0688)
-0.831
(7.1709)
Right Lower (n= 43, 25)
-1.884
(11.5558)
0.379
(11.0216)
Left Upper (n= 43, 25)
-1.709
(9.8835)
0.686
(8.0797)
Left Lower (n= 43, 25)
-0.713
(11.3439)
0.626
(11.4277)
Right Whole (n= 43, 25)
-2.409
(7.3861)
-0.225
(7.7509)
Left Whole (n= 43, 25)
-0.882
(9.8780)
0.587
(8.9852)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of Right Upper region of the lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.139
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -2.904
Confidence Interval (2-Sided) 95%
-6.77 to 0.97
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of Right Middle region of the Lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.460
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -1.210
Confidence Interval (2-Sided) 95%
-4.46 to 2.04
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of Right Lower region of the Lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.457
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -2.176
Confidence Interval (2-Sided) 95%
-7.98 to 3.63
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of Left Upper region of the Lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.362
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -2.167
Confidence Interval (2-Sided) 95%
-6.88 to 2.54
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of Left Lower region of the Lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.670
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -1.225
Confidence Interval (2-Sided) 95%
-6.94 to 4.48
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of Right Whole region of the Lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.244
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -2.218
Confidence Interval (2-Sided) 95%
-5.98 to 1.55
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 7
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of Left Whole region of the Lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.574
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -1.374
Confidence Interval (2-Sided) 95%
-6.23 to 3.48
Parameter Dispersion Type:
Value:
Estimation Comments
3. Secondary Outcome
Title Percent Change From Baseline in Trough FEV1 From Baseline to Week 104
Description The percent change for the pulmonary function tests (PFT) from baseline was calculated for each study week as follows: % change from baseline = ([value at Week X - value at baseline] /value at baseline) x 100.
Time Frame Baseline to Week 104

Outcome Measure Data

Analysis Population Description
The ITT population consisted of all randomized participants with non-missing baseline data and at least one post-baseline trough FEV1 measurement or evaluable HRCT scan. The number of participants analyzed at Week 104 were N = 28 and 18 respectively.
Arm/Group Title Tetomilast 50 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
Measure Participants 28 18
Mean (Standard Deviation) [percentage change]
-0.771
(14.4521)
-7.071
(22.9110)
4. Secondary Outcome
Title Density Mask Score Based on Specified Thresholds Including -950 HU
Description The density mask score is defined as the percentage of lung density voxels that lie below a specified threshold in the lung region of interest. The higher the percentage of the participant's lung density voxels that lie below a specified threshold, the higher the level of the participant's emphysema in the lung region under consideration. Changes in the density mask score was assessed using only a single density mask threshold of -950 HU.
Time Frame Baseline and Week 104

Outcome Measure Data

Analysis Population Description
The ITT population consisted of all randomized participants with non-missing baseline data and at least one post-baseline trough FEV1 measurement or evaluable HRCT scan. The number of participants analyzed at Week 104 were N = 23 and 16 respectively.
Arm/Group Title Tetomilast 50 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
Measure Participants 23 16
Right Upper (n= 23, 16)
0.57
(3.217)
-0.38
(4.425)
Right Middle (n= 23, 16)
0.96
(2.992)
-1.56
(4.980)
Right Lower (n= 23, 16)
1.17
(4.141)
-0.75
(4.494)
Left Upper (n= 23, 16)
1.17
(3.713)
-1.06
(4.823)
Left Lower (n= 23, 16)
1.22
(4.306)
-1.06
(5.221)
Right Whole (n= 23, 16)
0.96
(3.483)
-0.81
(4.151)
Left Whole (n= 23, 16)
1.09
(3.667)
-1.00
(4.719)
Whole Lung (n= 23, 16)
1.04
(3.431)
-1.00
(4.336)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of Right Upper region of the Lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.436
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 0.97
Confidence Interval (2-Sided) 95%
-1.53 to 3.47
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of Right Middle region of the Lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.067
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 2.31
Confidence Interval (2-Sided) 95%
-0.17 to 4.79
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of Right Lower region of the Lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.163
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 1.97
Confidence Interval (2-Sided) 95%
-0.83 to 4.77
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of Left Upper region of the Lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.102
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 2.27
Confidence Interval (2-Sided) 95%
-0.48 to 5.02
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of Left Lower region of the Lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.162
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 2.11
Confidence Interval (2-Sided) 95%
-0.89 to 5.12
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of Right Whole region of the Lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.160
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 1.78
Confidence Interval (2-Sided) 95%
-0.73 to 4.29
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 7
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of Left Whole region of the Lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.122
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 2.08
Confidence Interval (2-Sided) 95%
-0.58 to 4.75
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 8
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of Whole Lung region of the Lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.106
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 2.05
Confidence Interval (2-Sided) 95%
-0.46 to 4.56
Parameter Dispersion Type:
Value:
Estimation Comments
5. Secondary Outcome
Title Rate of Change in the 20th Percentile of Lung Density Voxels Expressed in HU Units for the Whole Lung (Whole Right + Whole Left) From Baseline to Week 104
Description The rate of change in lung density was calculated as the change in the 20th percentile of lung density voxels divided by the duration between the dates of measurement (month or year) where applicable. For example, if HRCT measurements are available over a span of 2 years, the annual rate of change was calculated as the difference over the 2 years divided by 2, where years between scans is given by years= floor(data of last scan - date of first scan + 1)/365.25.
Time Frame Baseline to Week 104

Outcome Measure Data

Analysis Population Description
The ITT population consisted of all randomized participants with non-missing baseline data and at least one post-baseline trough FEV1 measurement or evaluable HRCT scan. The number of participants analyzed at Week 104 were N = 46 and 26 respectively.
Arm/Group Title Tetomilast 50 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
Measure Participants 46 26
Mean (Standard Deviation) [Hounsfield unit/year]
-1.375
(7.909)
0.115
(8.166)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments LS Mean Difference between Tetomilast and Placebo at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.469
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -1.423
Confidence Interval (2-Sided) 95%
-5.32 to 2.48
Parameter Dispersion Type:
Value:
Estimation Comments
6. Secondary Outcome
Title Observed Rate of Change in Emphysema From Baseline to Week 104
Description The level of emphysema (g/L) within in a lung region is defined as the value of the selected percentile (10th, 15th, or 20th) in HU + 1000. The rate of change in the emphysema from baseline was calculated as the change in the level of emphysema from baseline to the specified visit divided by the time in years between the baseline and specified visit (i.e., [date of visit - date of baseline visit + 1]/365.25).
Time Frame Baseline to Week 104

Outcome Measure Data

Analysis Population Description
The ITT population consisted of all randomized participants with non-missing baseline data and at least one post-baseline trough FEV1 measurement or evaluable HRCT scan. The number of participants analyzed at Week 104 were N = 23 and 16 respectively.
Arm/Group Title Tetomilast 50 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
Measure Participants 23 16
Right Upper (n= 23, 16)
-0.64
(4.31)
0.58
(6.27)
Right Middle (n= 23, 16)
-0.87
(3.96)
0.28
(5.77)
Right Lower (n= 23, 16)
-0.53
(7.71)
0.39
(9.16)
Left Upper (n= 23, 16)
-1.49
(5.66)
1.83
(7.04)
Left Lower (n= 23, 16)
-0.62
(7.88)
0.42
(9.62)
Right Whole (n= 23, 16)
-0.79
(5.23)
0.50
(6.78)
Left Whole (n= 23, 16)
-0.95
(5.73)
1.14
(7.73)
Whole Lung (n= 23, 16)
-0.85
(5.30)
0.74
(7.28)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of right upper region of the lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.519
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -1.07
Confidence Interval (2-Sided) 95%
-4.42 to 2.27
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of right middle region of the lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.463
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -1.05
Confidence Interval (2-Sided) 95%
-3.92 to 1.82
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of right lower region of the lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.598
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -1.40
Confidence Interval (2-Sided) 95%
-6.74 to 3.94
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of left upper region of the lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.142
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -2.94
Confidence Interval (2-Sided) 95%
-6.92 to 1.03
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of left lower region of the lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.757
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -0.83
Confidence Interval (2-Sided) 95%
-6.26 to 4.59
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of right whole region of the lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.500
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -1.27
Confidence Interval (2-Sided) 95%
-5.03 to 2.50
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 7
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of left whole region of the lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.353
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -1.93
Confidence Interval (2-Sided) 95%
-6.09 to 2.23
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 8
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of whole region of the lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.438
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -1.52
Confidence Interval (2-Sided) 95%
-5.43 to 2.40
Parameter Dispersion Type:
Value:
Estimation Comments
7. Secondary Outcome
Title Change From Baseline to Week 104 in Cumulative Frequency of HU
Description The area under the curve (AUC) is defined as the cumulative voxel frequency in HU (ie, the value of the density mask denominator). Blood samples (4 mL) for pharmacokinetic analysis were collected for the determination of plasma OPC-6535 concentrations at Predose on Day 1 and Weeks 26, 52, 78 and 104.
Time Frame Baseline and Week 104

Outcome Measure Data

Analysis Population Description
The ITT population consisted of all randomized participants with non-missing baseline data and at least one post-baseline trough FEV1 measurement or evaluable HRCT scan. The number of participants analyzed at Week 104 were N = 23 and 16 respectively.
Arm/Group Title Tetomilast 50 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
Measure Participants 23 16
Right Upper (n= 23, 16)
4429363
(1696731)
4596228
(1012400)
Right Middle (n= 23, 16)
1474625
(409858)
1500073
(644286)
Right Lower (n= 23, 16)
4507375
(1302992)
4498652
(1703957)
Left Upper (n= 23, 16)
4818524
(1541192)
5105606
(1574676)
Left Lower (n= 23, 16)
4351407
(1677740)
4392819
(1256283)
Right Whole (n= 23, 16)
10411363
(2651975)
10594953
(2678348)
Left Whole (n= 23, 16)
9169931
(2630471)
9498425
(2471947)
Whole Lung (n= 23, 16)
19581293
(5212292)
20093377
(5022730)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of right upper region of the lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.220
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 351487
Confidence Interval (2-Sided) 95%
-219976 to 922951
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of right middle region of the lung at Week 104
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.146
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 103036
Confidence Interval (2-Sided) 95%
-37651 to 243723
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of right lower region of the lung at Week 104
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.322
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 247358
Confidence Interval (2-Sided) 95%
-252728 to 747444
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of left upper region of the lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.141
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 362384
Confidence Interval (2-Sided) 95%
-126518 to 851286
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of left lower region of the lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.325
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 294202
Confidence Interval (2-Sided) 95%
-303329 to 891733
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of right whole region of the lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.258
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 575882
Confidence Interval (2-Sided) 95%
-439692 to 1591457
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 7
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of left whole region of the lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.247
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 589373
Confidence Interval (2-Sided) 95%
-426928 to 1605673
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 8
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of whole lung region of the lung at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.251
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 1156318
Confidence Interval (2-Sided) 95%
-855009 to 3167645
Parameter Dispersion Type:
Value:
Estimation Comments
8. Secondary Outcome
Title Change From Baseline to Week 104 in Computed Tomography (CT) - Derived Lung Volumes (Total Lung Capacity [TLC] and Residual Volume [RV])
Description Change from baseline in CT-derived lung volumes TLC and RV are presented in the below outcome data table.
Time Frame Baseline to Week 104

Outcome Measure Data

Analysis Population Description
The ITT population consisted of all randomized participants with non-missing baseline data and at least one post-baseline trough FEV1 measurement or evaluable HRCT scan. The number of participants analyzed at Week 104 were N = 22 and 16 respectively.
Arm/Group Title Tetomilast 50 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
Measure Participants 22 16
Right Upper (RV) (n= 22, 16)
31.4
(145.3)
-64.3
(216.5)
Right Middle (RV) (n= 22, 16)
-14.1
(65.7)
-8.6
(63.6)
Right Lower (RV) (n= 22, 16)
18.1
(186.2)
-49.3
(254.8)
Left Upper (RV) (n= 22, 16)
11.0
(153.8)
-72.9
(212.9)
Left Lower (RV) (n= 22, 16)
13.0
(216.2)
-52.8
(220.7)
Right Whole (RV) (n= 22, 16)
35.3
(350.7)
-122.1
(504.5)
Left Whole (RV) (n= 22, 16)
23.8
(352.0)
-125.6
(401.8)
Whole Lung (RV) (n= 22, 16)
59.4
(693.3)
-247.8
(894.2)
Right Upper (TLC) (n= 22, 16)
-0.7
(173.9)
-52.3
(144.5)
Right Middle (TLC) (n= 22, 16)
3.7
(71.2)
-6.1
(62.6)
Right Lower (TLC) (n= 22, 16)
-12.5
(215.2)
-18.1
(159.2)
Left Upper (TLC) (n= 22, 16)
1.0
(141.8)
-59.1
(139.2)
Left Lower (TLC) (n= 22, 16)
-6.9
(270.2)
-35.8
(195.6)
Right Whole (TLC) (n= 22, 16)
-9.2
(341.0)
-76.3
(291.0)
Left Whole (TLC) (n= 22, 16)
-6.1
(390.6)
-95.1
(320.9)
Whole Lung (TLC) (n= 22, 16)
-15.2
(711.3)
-171.4
(584.4)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of right upper lung region (RV) at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.181
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 77.9
Confidence Interval (2-Sided) 95%
-38.0 to 193.8
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of right middle lung region (RV) at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.781
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -5.9
Confidence Interval (2-Sided) 95%
-48.8 to 36.9
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of right lower lung region (RV) at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.445
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 47.7
Confidence Interval (2-Sided) 95%
-77.8 to 173.2
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of left upper lung region (RV) at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.259
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 62.6
Confidence Interval (2-Sided) 95%
-48.1 to 173.2
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of left lower lung region (RV) at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.639
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 32.0
Confidence Interval (2-Sided) 95%
-105.6 to 169.6
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of right whole lung region (RV) at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.408
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 102.3
Confidence Interval (2-Sided) 95%
-145.9 to 350.5
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 7
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of left whole lung region (RV) at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.445
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 85.2
Confidence Interval (2-Sided) 95%
-138.8 to 309.2
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 8
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of whole lung region (RV) at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.421
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 187.6
Confidence Interval (2-Sided) 95%
-279.6 to 654.8
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 9
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of right upper lung region (TLC) at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.353
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 50.7
Confidence Interval (2-Sided) 95%
-58.5 to 159.9
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 10
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of right middle lung region (TLC) at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.660
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 9.9
Confidence Interval (2-Sided) 95%
-35.3 to 55.0
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 11
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of right lower lung region (TLC) at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.859
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 10.7
Confidence Interval (2-Sided) 95%
-110.7 to 132.1
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 12
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of left upper lung region (TLC)at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.253
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 51.5
Confidence Interval (2-Sided) 95%
-38.4 to 141.4
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 13
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of left lower lung region (TLC) at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.754
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 23.3
Confidence Interval (2-Sided) 95%
-126.0 to 172.6
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 14
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of right whole lung region (TLC) at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.546
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 62.2
Confidence Interval (2-Sided) 95%
-145.1 to 269.5
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 15
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of left whole lung region (TLC) at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.554
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 64.9
Confidence Interval (2-Sided) 95%
-155.5 to 285.3
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 16
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis of whole lung region (TLC) at Week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.524
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 132.2
Confidence Interval (2-Sided) 95%
-284.9 to 549.4
Parameter Dispersion Type:
Value:
Estimation Comments
9. Secondary Outcome
Title Change From Baseline to Week 104 in Trough RV/TLC
Description Change from Baseline in Trough RV/TLC is presented in the below outcome data table.
Time Frame Baseline to Week 104

Outcome Measure Data

Analysis Population Description
The ITT population consisted of all randomized participants with non-missing baseline data and at least one post-baseline trough FEV1 measurement or evaluable HRCT scan. The number of participants analyzed at Week 104 were n= 21 and 14 respectively.
Arm/Group Title Tetomilast 50 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
Measure Participants 21 14
Mean (Standard Deviation) [unitless]
0.01
(0.12)
0.01
(0.07)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.5843
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -0.01
Confidence Interval (2-Sided) 95%
-0.07 to 0.04
Parameter Dispersion Type:
Value:
Estimation Comments
10. Secondary Outcome
Title Change From Baseline to Week 104 in Trough Inspiratory Capacity
Description Change from Baseline in Trough Inspiratory Capacity is presented in the below outcome data table.
Time Frame Baseline toWeek 104

Outcome Measure Data

Analysis Population Description
The ITT population consisted of all randomized participants with non-missing baseline data and at least one post-baseline trough FEV1 measurement or evaluable HRCT scan. The number of participants analyzed at Week 104 were N = 25 and 14 respectively.
Arm/Group Title Tetomilast 50 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
Measure Participants 25 14
Mean (Standard Deviation) [mL]
0.074
(0.574)
-0.225
(0.384)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1252
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 0.249
Confidence Interval (2-Sided) 95%
-0.073 to 0.571
Parameter Dispersion Type:
Value:
Estimation Comments
11. Secondary Outcome
Title Change From Baseline to Week 104 in Trough Functional Residual Capacity (FRCpleth)
Description Change from baseline in trough FRCpleth is presented in the below outcome data table.
Time Frame Baseline to Week 104

Outcome Measure Data

Analysis Population Description
The ITT population consisted of all randomized participants with non-missing baseline data and at least one post-baseline trough FEV1 measurement or evaluable HRCT scan. The number of participants analyzed at Week 104 were N = 23 and 15 respectively.
Arm/Group Title Tetomilast 50 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
Measure Participants 23 15
Mean (Standard Deviation) [mL]
-0.010
(1.0130)
0.029
(0.5290)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.4661
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -0.1835
Confidence Interval (2-Sided) 95%
-0.6892 to 0.3221
Parameter Dispersion Type:
Value:
Estimation Comments
12. Secondary Outcome
Title Change From Baseline to Week 104 in Carbon Monoxide Diffusion Capacity (DLco)
Description Change from Baseline in DLco is presented in the below outcome data table.
Time Frame Baseline to Week 104

Outcome Measure Data

Analysis Population Description
The ITT population consisted of all randomized participants with non-missing baseline data and at least one post-baseline trough FEV1 measurement or evaluable HRCT scan. The number of participants analyzed at Week 104 were N = 23 and 15 respectively.
Arm/Group Title Tetomilast 50 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
Measure Participants 23 15
Mean (Standard Deviation) [mmoL/min/kPA]
0.021
(0.8485)
-0.625
(1.6288)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.134
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 0.60
Confidence Interval (2-Sided) 95%
-0.19 to 1.40
Parameter Dispersion Type:
Value:
Estimation Comments
13. Secondary Outcome
Title Change From Baseline to Week 104 in Mean Specific Airway Resistance (sRaw) and Specific Conductance (sGaw)
Description Change from baseline in sRaw and sGaw is presented in the below outcome data table.
Time Frame Baseline to Week 104

Outcome Measure Data

Analysis Population Description
The ITT population consisted of all randomized participants with non-missing baseline data and at least one post-baseline trough FEV1 measurement or evaluable HRCT scan. The number of participants analyzed at Week 104 were N = 23 and 15 respectively.
Arm/Group Title Tetomilast 50 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
Measure Participants 23 15
sRaw
-0.29
(1.110)
0.47
(1.387)
sGaw
0.11
(0.584)
-0.07
(0.293)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis for sRaw
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.074
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -0.71
Confidence Interval (2-Sided) 95%
-1.50 to 0.07
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis for sGaw
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.155
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 0.22
Confidence Interval (2-Sided) 95%
-0.09 to 0.52
Parameter Dispersion Type:
Value:
Estimation Comments
14. Secondary Outcome
Title Change From Baseline to Week 104 in 7-day Average Total Symptom Score of Dyspnea, Cough and Sputum
Description Participants used the Breathlessness, Cough, and Sputum Scale (BCSS) as the diary to daily monitor and rate their symptoms of difficulty breathing, cough, and sputum. The scale allows patients to rate each symptom on a scale of 0 (no difficultly for breathing and sputum, or unaware of coughing) to 4 (an almost constant problem for breathing and sputum, or almost constant for cough).
Time Frame Baseline to Week 104

Outcome Measure Data

Analysis Population Description
The ITT population consisted of all randomized participants with non-missing baseline data and at least one post-baseline trough FEV1 measurement or evaluable HRCT scan. The number of participants analyzed at Week 104 were N = 13 and 9 respectively.
Arm/Group Title Tetomilast 50 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
Measure Participants 13 9
Mean prior daily breath symptoms (n= 13, 9)
0.13
(0.60)
0.20
(0.95)
Mean prior daily cough symptoms (n= 13, 9)
0.10
(0.40)
-0.13
(1.13)
Mean prior daily sputum symptoms (n= 13, 9)
0.15
(0.74)
0.31
(1.07)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis for mean prior daily breath symptoms
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.845
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -0.07
Confidence Interval (2-Sided) 95%
-0.77 to 0.64
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis for mean prior daily cough symptoms
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.549
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 0.21
Confidence Interval (2-Sided) 95%
-0.52 to 0.94
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis for mean prior daily sputum symptoms
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.717
Comments
Method ANCOVA
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -0.14
Confidence Interval (2-Sided) 95%
-0.93 to 0.65
Parameter Dispersion Type:
Value:
Estimation Comments
15. Secondary Outcome
Title Change From Baseline to Week 104 in 7-day Mean Number of Actuations of Rescue Medications
Description Participants recorded rescue medication use (albuterol and/or ipratropium bromide) in a rescue medication log.
Time Frame Baseline to Week 104

Outcome Measure Data

Analysis Population Description
The ITT population consisted of all randomized participants with non-missing baseline data and at least one post-baseline trough FEV1 measurement or evaluable HRCT scan. The number of participants analyzed at Week 104 were N = 14 and 9 respectively.
Arm/Group Title Tetomilast 50 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
Measure Participants 14 9
Mean (Standard Deviation) [number of puffs]
-0.74
(1.57)
-2.52
(3.82)
16. Secondary Outcome
Title Percentage of Participants With COPD Exacerbations by Group at Week 104
Description For the COPD exacerbations, baseline is defined as Randomization (Day 1). COPD exacerbations, defined as an acute worsening of COPD symptoms, were classified as being in one of 3 levels: Level I (can by self-managed by the participant); Level II (requires a physician visit), or Level III (requires a hospital visit).
Time Frame Baseline and Week 104

Outcome Measure Data

Analysis Population Description
The ITT population consisted of all randomized participants with non-missing baseline data and at least one post-baseline trough FEV1 measurement or evaluable HRCT scan.
Arm/Group Title Tetomilast 50 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
Measure Participants 48 28
Level I (Baseline) (n= 48, 28)
0.0
0%
0.0
0%
Level I (Week 104) (n= 23, 15)
4.3
8.4%
6.7
20.3%
Level II (Baseline) (n= 48, 28)
0.0
0%
0.0
0%
Level II (Week 104) (n= 23, 15)
8.7
17.1%
6.7
20.3%
Level III (Baseline) (n= 48, 28)
0.0
0%
0.0
0%
Level III (Week 104) (n= 23, 15)
8.7
17.1%
0.0
0%
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis for level I (self management) at week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 1.000
Comments
Method Fisher Exact
Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis for level II (physician visit) at week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 1.0000
Comments
Method Fisher Exact
Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis for level III (hospital visit) at week 104.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.5092
Comments
Method Fisher Exact
Comments
17. Secondary Outcome
Title Percentage of Participants Experiencing a COPD Exacerbation (Level 2 or Higher)
Description Percentage of participants experiencing a COPD exacerbation in a level 2 or higher are presented in the below outcome data table.
Time Frame Baseline and Week 104

Outcome Measure Data

Analysis Population Description
The ITT population consisted of all randomized participants with non-missing baseline data and at least one post-baseline trough FEV1 measurement or evaluable HRCT scan.
Arm/Group Title Tetomilast 50 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
Measure Participants 48 28
Level 2 or Higher (Baseline)
0.0
0%
0.0
0%
Level 1 or No Exacerbation (Baseline)
100.0
196.1%
100.0
303%
Level 2 or Higher (Week 104)
8.3
16.3%
3.6
10.9%
Level 1 or No Exacerbation (Week 104)
39.6
77.6%
50.0
151.5%
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Tetomilast 50 mg, Placebo
Comments Statistical analysis at Week 104
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.630
Comments Fisher's Exact test was used to determine whether the tetomilast and placebo groups differ in the proportion of participants who experienced Level 2 or higher COPD exacerbations during the study.
Method Fisher Exact
Comments

Adverse Events

Time Frame Adverse events were reported from the signing of the informed consent, throughout the 104 week treatment period until the follow-up visit of 14 (+2) days.
Adverse Event Reporting Description
Arm/Group Title Tetomilast 25 mg Placebo
Arm/Group Description Participants were administered oral tetomilast 25 milligram (mg) once daily for 2 weeks followed by 50 mg once daily for 102 weeks. Participants were administered matching placebo for 104 weeks (2 years)
All Cause Mortality
Tetomilast 25 mg Placebo
Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total / (NaN) / (NaN)
Serious Adverse Events
Tetomilast 25 mg Placebo
Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 13/51 (25.5%) 12/33 (36.4%)
Blood and lymphatic system disorders
Anaemia 0/51 (0%) 1/33 (3%)
Cardiac disorders
Angina unstable 0/51 (0%) 1/33 (3%)
Coronary artery stenosis 0/51 (0%) 1/33 (3%)
Gastrointestinal disorders
Colitis 0/51 (0%) 2/33 (6.1%)
Abdominal pain 1/51 (2%) 0/33 (0%)
Abdominal pain upper 0/51 (0%) 1/33 (3%)
Duodenal ulcer 1/51 (2%) 0/33 (0%)
Duodenal ulcer haemorrhage 0/51 (0%) 1/33 (3%)
Dysphagia 1/51 (2%) 0/33 (0%)
Erosive duodenitis 1/51 (2%) 0/33 (0%)
Ileus 0/51 (0%) 1/33 (3%)
Inguinal hernia, obstructive 1/51 (2%) 0/33 (0%)
Large intestinal stenosis 0/51 (0%) 1/33 (3%)
Melaena 1/51 (2%) 0/33 (0%)
Nausea 1/51 (2%) 0/33 (0%)
Vomiting 1/51 (2%) 0/33 (0%)
General disorders
Non-cardiac chest pain 2/51 (3.9%) 0/33 (0%)
Hepatobiliary disorders
Bile duct stenosis 1/51 (2%) 0/33 (0%)
Biliary colic 0/51 (0%) 1/33 (3%)
Infections and infestations
Pneumonia 2/51 (3.9%) 3/33 (9.1%)
Lobar Pneumonia 2/51 (3.9%) 0/33 (0%)
Cellulitis 0/51 (0%) 1/33 (3%)
Clostridium difficile colitis 1/51 (2%) 0/33 (0%)
Colostomy infection 0/51 (0%) 1/33 (3%)
Corona virus infection 0/51 (0%) 1/33 (3%)
Diverticulitis 0/51 (0%) 1/33 (3%)
Influenza 1/51 (2%) 0/33 (0%)
Injury, poisoning and procedural complications
Carotid artery restenosis 0/51 (0%) 1/33 (3%)
Procedural headache 1/51 (2%) 0/33 (0%)
Toxicity to various agents 0/51 (0%) 1/33 (3%)
Investigations
Hepatic enzyme increased 0/51 (0%) 1/33 (3%)
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Lung adenocarcinoma 0/51 (0%) 1/33 (3%)
Lung neoplasm malignant 1/51 (2%) 0/33 (0%)
Metastatic neoplasm 1/51 (2%) 0/33 (0%)
Nervous system disorders
Ischaemic cerebral infarction 1/51 (2%) 0/33 (0%)
Psychiatric disorders
Psychotic disorder 0/51 (0%) 1/33 (3%)
Respiratory, thoracic and mediastinal disorders
Chronic obstrutive pulmonary disease 6/51 (11.8%) 4/33 (12.1%)
Dyspnoea 1/51 (2%) 1/33 (3%)
Respiratory failure 2/51 (3.9%) 0/33 (0%)
Atelectasis 1/51 (2%) 0/33 (0%)
Pleural effusion 1/51 (2%) 0/33 (0%)
Pneumothorax 1/51 (2%) 0/33 (0%)
Pulmonary embolism 1/51 (2%) 0/33 (0%)
Vascular disorders
Aortic aneurysm 1/51 (2%) 0/33 (0%)
Deep vein thrombosis 1/51 (2%) 0/33 (0%)
Peripheral arterial occlusive disease 1/51 (2%) 0/33 (0%)
Other (Not Including Serious) Adverse Events
Tetomilast 25 mg Placebo
Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 30/51 (58.8%) 23/33 (69.7%)
Blood and lymphatic system disorders
Leukocytosis 0/51 (0%) 2/33 (6.1%)
Cardiac disorders
Palpitations 0/51 (0%) 2/33 (6.1%)
Gastrointestinal disorders
Abdominal pain 3/51 (5.9%) 2/33 (6.1%)
Constipation 1/51 (2%) 2/33 (6.1%)
Diarrhoea 5/51 (9.8%) 2/33 (6.1%)
Gastritis 3/51 (5.9%) 0/33 (0%)
Gastrooesophageal reflux disease 1/51 (2%) 2/33 (6.1%)
Nausea 3/51 (5.9%) 1/33 (3%)
General disorders
Pyrexia 0/51 (0%) 2/33 (6.1%)
Infections and infestations
Bronchitis 5/51 (9.8%) 6/33 (18.2%)
Gastroenteritis viral 0/51 (0%) 2/33 (6.1%)
Sinusitis 2/51 (3.9%) 3/33 (9.1%)
Upper respiratory tract infection 5/51 (9.8%) 3/33 (9.1%)
Urinary tract infection 3/51 (5.9%) 3/33 (9.1%)
Investigations
Weight decreased 0/51 (0%) 2/33 (6.1%)
Metabolism and nutrition disorders
Dehydration 0/51 (0%) 3/33 (9.1%)
Hypokalemia 0/51 (0%) 2/33 (6.1%)
Hyponatraemia 0/51 (0%) 2/33 (6.1%)
Nervous system disorders
Headache 1/51 (2%) 2/33 (6.1%)
Psychiatric disorders
Anxiety 2/51 (3.9%) 2/33 (6.1%)
Reproductive system and breast disorders
Benign prostatic hyperplasia 3/51 (5.9%) 0/33 (0%)
Respiratory, thoracic and mediastinal disorders
Chronic obstrictive pulmonary disease 16/51 (31.4%) 13/33 (39.4%)
Cough 4/51 (7.8%) 3/33 (9.1%)
Dyspnoea 0/51 (0%) 2/33 (6.1%)
Respiratory tract congestion 0/51 (0%) 2/33 (6.1%)
Skin and subcutaneous tissue disorders
Ecchymosis 0/51 (0%) 2/33 (6.1%)
Vascular disorders
Hypertension 3/51 (5.9%) 2/33 (6.1%)

Limitations/Caveats

This trial was terminated early, not due to a safety concern, but due to a business decision to cease development of the tetolimast clinical program.

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release and can embargo communications regarding trial results for a period that is less than or equal to 60 days from the time submitted to the sponsor for review. The sponsor cannot require changes to the communication and cannot extend the embargo.

Results Point of Contact

Name/Title Global Medical Affairs
Organization Otsuka Pharmaceutical Development and Commercialization, Inc.
Phone 800 562-3974
Email
Responsible Party:
Otsuka Pharmaceutical Development & Commercialization, Inc.
ClinicalTrials.gov Identifier:
NCT00874497
Other Study ID Numbers:
  • 197-08-250
First Posted:
Apr 2, 2009
Last Update Posted:
Apr 17, 2017
Last Verified:
Mar 1, 2017