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Effect of Ensifentrine Treatment on CAT Score

A Study Assessing the Effect of Ensifentrine on CAT™ Scores Over 12 Weeks in Subjects With Moderate to Severe COPD

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06460493
Enrollment
20
Registered
2024-06-14
Start date
2024-06-11
Completion date
2024-12-03
Last updated
2025-04-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

COPD

Brief summary

The purpose of this open-label, single center trial is to assess the effect of twice daily nebulized ensifentrine (3 mg) on COPD symptoms measured by the COPD Assessment Test (CAT™) scores over 12 weeks in subjects with symptomatic, moderate to severe COPD, taking maintenance LAMA/LABA or LAMA/LABA/ICS therapy. Subjects will continue the maintenance treatment during study participation.

Interventions

DRUGEnsifentrine 3 mg twice daily

All subjects will receive ensifentrine.

Sponsors

Midwest Chest Consultants
CollaboratorOTHER
Verona Pharma plc
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
40 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Capable of giving informed consent. * Current or former cigarette smokers with a history of cigarette smoking ≥ 10 pack years. * Established clinical history of moderate to severe COPD. * Pre- and post-albuterol FEV1/FVC ratio of \< 0.70. * Post-albuterol FEV1 ≥ 30 % and ≤ 75% of predicted normal. * ≥2 on the modified Medical Research Council (mMRC) Dyspnea Scale. * ≥10 on the COPD Assessment Test™. * Taking stable dual (LAMA+LABA) or triple (LAMA+LABA+ICS) maintenance therapy for at least 8 weeks. * Capable of using a standard jet nebulizer and performed spirometry assessment.

Exclusion criteria

1. Hospitalizations for COPD (or COPD exacerbation), pneumonia, or other serious infection or treatment with oral or parenteral (oral, intravenous, or intramuscular) glucocorticoids within the past 12 weeks. 2. Lower respiratory tract infection within the past 6 weeks or an active infection. 3. History of life-threatening COPD, including Intensive Care Unit admission and/or requiring intubation within 1-year. 4. Major surgery (requiring general anesthesia) within the past 6 weeks, lack of full recovery from surgery, or planned surgery through the end of the study. 5. Concomitant clinically significant pulmonary disease other than COPD (e.g., asthma, tuberculosis, lung cancer, bronchiectasis, sarcoidosis, lung fibrosis, interstitial lung diseases, sleep apnea (unless controlled with stable continuous positive airway pressure \[CPAP\] use), known alpha-1 antitrypsin deficiency, core pulmonale or other non-specific pulmonary disease). 6. Severe comorbidities including unstable cardiac, (e.g., myocardial infarction within 1 year prior to screening, unstable angina within 6 months, or unstable or life-threatening arrhythmia requiring intervention within 3 months) or any other clinically significant medical conditions including uncontrolled diseases (e.g., endocrine, neurological, hepatic, gastrointestinal, renal, hematological, urological, immunological, psychiatric or ophthalmic diseases) that would, in the opinion of the Investigator, preclude the subject from safely completing the required tests or the study, or is likely to result in disease progression that would require withdrawal of the subject. 7. HIV infection or other immunodeficiency. 8. Previous lung resection or lung reduction surgery within 1-year. 9. Long term oxygen use defined as oxygen therapy prescribed for greater than 12 hours per day. 10. Pulmonary rehabilitation unless such treatment has been stable for at least 4 weeks and remains stable during the study. 11. History of or current malignancy of any organ system, treated or untreated within the past 5 years, except for localized basal or squamous cell carcinoma of the skin. 12. Significant psychiatric disease that would likely result in the subject not being able to complete the study, in the opinion of the Investigator. 13. Findings on physical examination that an investigator considers to be clinically significant. 14. Known alanine aminotransferase (ALT) ≥ 2 × upper limit of normal (ULN), alkaline phosphatase and/or bilirubin \> 1.5 × ULN (isolated bilirubin \> 1.5 × ULN is acceptable if fractionated bilirubin \< 35%). 15. Known diagnosis of severe chronic kidney disease. 16. Any other known abnormal clinical, cardiac or laboratory (hematology, biochemistry or viral) findings, deemed by an investigator to be clinically significantly abnormal. 17. Use of prohibited medications, including nebulized medication, within the time intervals. 18. Current or history of drug or alcohol abuse within the past 5 years. 19. Women who are breast feeding. 20. Use of an experimental drug within 30 days or 5 half-lives, whichever is longer, and/or participation in a study treatment-free follow-up phase of a clinical study within 30 days. 21. Use of an experimental medical device or participation in a follow-up phase of an experimental medical device clinical study within 30 days. 22. Affiliation with the investigator site, including an Investigator, Sub-Investigator, study coordinator, study nurse, other employee of participating investigator or study site or a family member of the aforementioned. 23. A disclosed history or one known to the Investigator of significant noncompliance in previous investigational studies or with prescribed medications. 24. Any other reason that the Investigator considers makes the subject unsuitable to participate.

Design outcomes

Primary

MeasureTime frameDescription
The Proportion of CAT Score Responders in the Full Analysis Set at Week 1212 WeeksResponders are defined as an improvement (decrease) from baseline of ≥2 points. The COPD Assessment Test(tm) (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. The individual items are: Cough, Mucus, Chest Tight, Breathless, Limited Activities, Confident, Sleep and Energy). CAT was self-completed at baseline, week 6 and week 12.

Secondary

MeasureTime frameDescription
The Proportion of CAT Score Responders in the Full Analysis Set at Week 66 WeeksResponders are defined as an improvement (decrease) from baseline of ≥2 points. The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. The individual items are: Cough, Mucus, Chest Tight, Breathless, Limited Activities, Confident, Sleep and Energy). CAT was self-completed at baseline, week 6 and week 12.
Mean Change From Baseline - CAT Score in the Full Analysis SetAt week 6 and week 12The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. The individual items are: Cough, Mucus, Chest Tight, Breathless, Limited Activities, Confident, Sleep and Energy). CAT was self-completed at baseline, week 6 and week 12. A decrease from baseline indicates an improvement in COPD symptoms.
Mean Change From Baseline - CAT Individual Item (1, Cough) in the Full Analysis SetAt week 6 and week 12The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. Question 1: (0) I never cough → (5) I cough all the time. CAT was self-completed at baseline, week 6 and week 12.
Mean Change From Baseline - CAT Individual Item (2, Mucus) in the Full Analysis SetAt week 6 and week 12The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. Question 2: (0) I have no phlegm (mucus) in my chest at all → (5) My chest is completely full of phlegm (mucus) CAT was self-completed at baseline, week 6 and week 12.
Mean Change From Baseline - CAT Individual Item (3, Chest Tight) in the Full Analysis SetAt week 6 and week 12The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. Question 3: (0) My chest does not feel tight at all → (5) My chest feels very tight CAT was self-completed at baseline, week 6 and week 12.
Mean Change From Baseline - CAT Individual Item (7, Sleep) in the Full Analysis SetAt week 6 and week 12The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. Question 7: (0) I sleep soundly → (5) I don't sleep soundly because of my lung condition CAT was self-completed at baseline, week 6 and week 12.
Mean Change From Baseline - CAT Individual Item (8, Energy) in the Full Analysis SetAt week 6 and week 12The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. Question 8: (0) I have lots of energy → (5) I have no energy at all CAT was self-completed at baseline, week 6 and week 12.
Mean Change From Baseline - CAT Individual Item (4, Breathless) in the Full Analysis SetAt week 6 and week 12The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. Question 4: (0) When I walk up a hill or one flight of stairs I am not breathless → (5) When I walk up a hill or one flight of stairs I am very breathless CAT was self-completed at baseline, week 6 and week 12.
Mean Change From Baseline - CAT Individual Item (5, Activities) in the Full Analysis SetAt week 6 and week 12The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. Question 5: (0) I am not limited doing any activities at home → (5) I am very limited doing activities at home CAT was self-completed at baseline, week 6 and week 12.
Mean Change From Baseline - CAT Individual Item (6, Confidence) in the Full Analysis SetAt week 6 and week 12The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. Question 6: (0) I am confident leaving my home despite my lung condition → (5) I am not at all confident leaving my home because of my lung condition CAT was self-completed at baseline, week 6 and week 12.

Other

MeasureTime frameDescription
Mean Change From Baseline in Blood Pressure in the Safety Analysis Set12 WeeksVital signs were assessed at baseline, week 6 and week 12. Week 12 is reported. Determine any clinically significant change from baseline in systolic and diastolic blood pressure.
Mean Change From Baseline in Pulse Rate in the Safety Analysis Set12 WeeksVital signs were assessed at baseline, week 6 and week 12. Week 12 is reported. Determine any clinically significant change from baseline in pulse rate.

Countries

United States

Participant flow

Recruitment details

Following the informed consent process, screening assessments were completed at visits 1 and 2.

Pre-assignment details

If any inclusion criteria were not met during screening at visit 1 or 2, the subject was not treated with study medication. Study medication was dispensed and administered at visit 2 after all eligibility criteria were met.

Participants by arm

ArmCount
Ensifentrine 3 mg BID
Inhaled ensifentrine twice daily (BID) for 12 weeks via standard jet nebulizer in addition to standard dual (LAMA/LABA) or triple (LAMA/LABA/ICS) therapy. Eligible subjects received ensifentrine.
18
Total18

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyWithdrawal by Subject2

Baseline characteristics

CharacteristicEnsifentrine 3 mg BID
Age, Continuous73 years
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
18 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Mean baseline CAT score18.3 units on a scale
STANDARD_DEVIATION 6.4
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
18 Participants
Region of Enrollment
United States
18 Participants
Sex: Female, Male
Female
8 Participants
Sex: Female, Male
Male
10 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 20
other
Total, other adverse events
0 / 20
serious
Total, serious adverse events
0 / 20

Outcome results

Primary

The Proportion of CAT Score Responders in the Full Analysis Set at Week 12

Responders are defined as an improvement (decrease) from baseline of ≥2 points. The COPD Assessment Test(tm) (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. The individual items are: Cough, Mucus, Chest Tight, Breathless, Limited Activities, Confident, Sleep and Energy). CAT was self-completed at baseline, week 6 and week 12.

Time frame: 12 Weeks

Population: The full analysis set (FAS) included all subjects administered the study medication at visit 2 (day 1), and had a CAT completed at baseline and from at least one post-treatment visit.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Ensifentrine 3 mg BIDThe Proportion of CAT Score Responders in the Full Analysis Set at Week 1212 Participants
95% CI: [38, 100]
Secondary

Mean Change From Baseline - CAT Individual Item (1, Cough) in the Full Analysis Set

The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. Question 1: (0) I never cough → (5) I cough all the time. CAT was self-completed at baseline, week 6 and week 12.

Time frame: At week 6 and week 12

Population: The full analysis set (FAS) included all subjects administered the study medication at visit 2 (day 1), and had a CAT completed at baseline and from at least one post-treatment visit.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Ensifentrine 3 mg BIDMean Change From Baseline - CAT Individual Item (1, Cough) in the Full Analysis SetCAT question 1 (cough) at week 6 (mean change from baseline)-0.2 units on a scale
Ensifentrine 3 mg BIDMean Change From Baseline - CAT Individual Item (1, Cough) in the Full Analysis SetCAT question 1 (cough) at week 12 (mean change from baseline)-0.3 units on a scale
Secondary

Mean Change From Baseline - CAT Individual Item (2, Mucus) in the Full Analysis Set

The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. Question 2: (0) I have no phlegm (mucus) in my chest at all → (5) My chest is completely full of phlegm (mucus) CAT was self-completed at baseline, week 6 and week 12.

Time frame: At week 6 and week 12

Population: The full analysis set (FAS) included all subjects administered the study medication at visit 2 (day 1), and had a CAT completed at baseline and from at least one post-treatment visit.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Ensifentrine 3 mg BIDMean Change From Baseline - CAT Individual Item (2, Mucus) in the Full Analysis SetCAT question 2 (mucus) at week 6 (mean change from baseline)0.0 units on a scale
Ensifentrine 3 mg BIDMean Change From Baseline - CAT Individual Item (2, Mucus) in the Full Analysis SetCAT question 2 (mucus) at week 12 (mean change from baseline)-0.5 units on a scale
Secondary

Mean Change From Baseline - CAT Individual Item (3, Chest Tight) in the Full Analysis Set

The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. Question 3: (0) My chest does not feel tight at all → (5) My chest feels very tight CAT was self-completed at baseline, week 6 and week 12.

Time frame: At week 6 and week 12

Population: The full analysis set (FAS) included all subjects administered the study medication at visit 2 (day 1), and had a CAT completed at baseline and from at least one post-treatment visit.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Ensifentrine 3 mg BIDMean Change From Baseline - CAT Individual Item (3, Chest Tight) in the Full Analysis SetCAT question 3 (chest tight) at week 6 (mean change from baseline)-0.3 units on a scale
Ensifentrine 3 mg BIDMean Change From Baseline - CAT Individual Item (3, Chest Tight) in the Full Analysis SetCAT question 3 (chest tight) at week 12 (mean change from baseline)-0.4 units on a scale
Secondary

Mean Change From Baseline - CAT Individual Item (4, Breathless) in the Full Analysis Set

The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. Question 4: (0) When I walk up a hill or one flight of stairs I am not breathless → (5) When I walk up a hill or one flight of stairs I am very breathless CAT was self-completed at baseline, week 6 and week 12.

Time frame: At week 6 and week 12

Population: The full analysis set (FAS) included all subjects administered the study medication at visit 2 (day 1), and had a CAT completed at baseline and from at least one post-treatment visit.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Ensifentrine 3 mg BIDMean Change From Baseline - CAT Individual Item (4, Breathless) in the Full Analysis SetCAT question 4 (breathless) at week 6 (mean change from baseline)-0.9 units on a scale
Ensifentrine 3 mg BIDMean Change From Baseline - CAT Individual Item (4, Breathless) in the Full Analysis SetCAT question 4 (breathless) at week 12 (mean change from baseline)-0.5 units on a scale
Secondary

Mean Change From Baseline - CAT Individual Item (5, Activities) in the Full Analysis Set

The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. Question 5: (0) I am not limited doing any activities at home → (5) I am very limited doing activities at home CAT was self-completed at baseline, week 6 and week 12.

Time frame: At week 6 and week 12

Population: The full analysis set (FAS) included all subjects administered the study medication at visit 2 (day 1), and had a CAT completed at baseline and from at least one post-treatment visit.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Ensifentrine 3 mg BIDMean Change From Baseline - CAT Individual Item (5, Activities) in the Full Analysis SetCAT question 5 (activities) at week 6 (mean change from baseline)-0.2 units on a scale
Ensifentrine 3 mg BIDMean Change From Baseline - CAT Individual Item (5, Activities) in the Full Analysis SetCAT question 5 (activities) at week 12 (mean change from baseline)-0.3 units on a scale
Secondary

Mean Change From Baseline - CAT Individual Item (6, Confidence) in the Full Analysis Set

The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. Question 6: (0) I am confident leaving my home despite my lung condition → (5) I am not at all confident leaving my home because of my lung condition CAT was self-completed at baseline, week 6 and week 12.

Time frame: At week 6 and week 12

Population: The full analysis set (FAS) included all subjects administered the study medication at visit 2 (day 1), and had a CAT completed at baseline and from at least one post-treatment visit.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Ensifentrine 3 mg BIDMean Change From Baseline - CAT Individual Item (6, Confidence) in the Full Analysis SetCAT question 6 (confidence) at week 6 (mean change from baseline)0.1 units on a scale
Ensifentrine 3 mg BIDMean Change From Baseline - CAT Individual Item (6, Confidence) in the Full Analysis SetCAT question 6 (confidence) at week 12 (mean change from baseline)-0.2 units on a scale
Secondary

Mean Change From Baseline - CAT Individual Item (7, Sleep) in the Full Analysis Set

The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. Question 7: (0) I sleep soundly → (5) I don't sleep soundly because of my lung condition CAT was self-completed at baseline, week 6 and week 12.

Time frame: At week 6 and week 12

Population: The full analysis set (FAS) included all subjects administered the study medication at visit 2 (day 1), and had a CAT completed at baseline and from at least one post-treatment visit.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Ensifentrine 3 mg BIDMean Change From Baseline - CAT Individual Item (7, Sleep) in the Full Analysis SetCAT question 7 (sleep) at week 6 (mean change from baseline)0.0 units on a scale
Ensifentrine 3 mg BIDMean Change From Baseline - CAT Individual Item (7, Sleep) in the Full Analysis SetCAT question 7 (sleep) at week 12 (mean change from baseline)0.2 units on a scale
Secondary

Mean Change From Baseline - CAT Individual Item (8, Energy) in the Full Analysis Set

The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. Question 8: (0) I have lots of energy → (5) I have no energy at all CAT was self-completed at baseline, week 6 and week 12.

Time frame: At week 6 and week 12

Population: The full analysis set (FAS) included all subjects administered the study medication at visit 2 (day 1), and had a CAT completed at baseline and from at least one post-treatment visit.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Ensifentrine 3 mg BIDMean Change From Baseline - CAT Individual Item (8, Energy) in the Full Analysis SetCAT question 8 (energy) at week 6 (mean change from baseline)0.0 units on a scale
Ensifentrine 3 mg BIDMean Change From Baseline - CAT Individual Item (8, Energy) in the Full Analysis SetCAT question 8 (energy) at week 12 (mean change from baseline)-0.2 units on a scale
Secondary

Mean Change From Baseline - CAT Score in the Full Analysis Set

The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. The individual items are: Cough, Mucus, Chest Tight, Breathless, Limited Activities, Confident, Sleep and Energy). CAT was self-completed at baseline, week 6 and week 12. A decrease from baseline indicates an improvement in COPD symptoms.

Time frame: At week 6 and week 12

Population: The full analysis set (FAS) included all subjects administered the study medication at visit 2 (day 1), and had a CAT completed at baseline and from at least one post-treatment visit.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Ensifentrine 3 mg BIDMean Change From Baseline - CAT Score in the Full Analysis SetCAT score at week 6 (mean change from baseline)-1.5 units on a scale
Ensifentrine 3 mg BIDMean Change From Baseline - CAT Score in the Full Analysis SetCAT score at week 12 (mean change from baseline)-2.3 units on a scale
Secondary

The Proportion of CAT Score Responders in the Full Analysis Set at Week 6

Responders are defined as an improvement (decrease) from baseline of ≥2 points. The COPD Assessment Test (CAT) is a one-page, 8-item questionnaire suitable for completion by patients diagnosed with COPD. When completing the questionnaire, individuals rate their experience on a 6-point scale, ranging from 0 (no impairment) to 5 (maximum impairment) with a scoring range of 0-40. Higher scores indicate greater disease impact. The individual items are: Cough, Mucus, Chest Tight, Breathless, Limited Activities, Confident, Sleep and Energy). CAT was self-completed at baseline, week 6 and week 12.

Time frame: 6 Weeks

Population: The full analysis set (FAS) included all subjects administered the study medication at visit 2 (day 1), and had a CAT completed at baseline and from at least one post-treatment visit.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Ensifentrine 3 mg BIDThe Proportion of CAT Score Responders in the Full Analysis Set at Week 68 Participants
95% CI: [22, 89.5]
Other Pre-specified

Mean Change From Baseline in Blood Pressure in the Safety Analysis Set

Vital signs were assessed at baseline, week 6 and week 12. Week 12 is reported. Determine any clinically significant change from baseline in systolic and diastolic blood pressure.

Time frame: 12 Weeks

Population: The safety analysis set (SAS) included all subjects who were administered the study medication at day 1 (n=20). However, 2 subjects did not complete week 6 and week 12 visits and did not have a change from baseline calculated.

ArmMeasureGroupValue (MEAN)Dispersion
Ensifentrine 3 mg BIDMean Change From Baseline in Blood Pressure in the Safety Analysis SetSystolic blood pressure at week 12 (mean change from baseline)1.2 mmHgStandard Deviation 15.08
Ensifentrine 3 mg BIDMean Change From Baseline in Blood Pressure in the Safety Analysis SetDiastolic blood pressure at week 12 (mean change from baseline)2.8 mmHgStandard Deviation 10.37
Other Pre-specified

Mean Change From Baseline in Pulse Rate in the Safety Analysis Set

Vital signs were assessed at baseline, week 6 and week 12. Week 12 is reported. Determine any clinically significant change from baseline in pulse rate.

Time frame: 12 Weeks

Population: The safety analysis set (SAS) included all subjects who were administered the study medication at day 1 (n=20). However, 2 subjects did not complete week 6 and week 12 visits and did not have a change from baseline calculated.

ArmMeasureValue (MEAN)Dispersion
Ensifentrine 3 mg BIDMean Change From Baseline in Pulse Rate in the Safety Analysis Set2.9 bpmStandard Deviation 11.11

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026