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Ensifentrine twice daily

Phase 3

COPD | Small molecule | Respiratory |Merck & Company, Inc.|Last Updated: Apr 18, 2025

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLED
Total Trials1
Total Enrollment20

FDA Designations

No designations recorded

Clinical trial landscape

Ensifentrine twice daily · 1 trial · 1 indication

Phase 3 1
NCT06460493Effect of Ensifentrine Treatment on CAT ScoreCOPD
COMPLETED20 Analytics
PHASE3COMPLETED
Effect of Ensifentrine Treatment on CAT Score
COPDUnlock trial analytics

Study Endpoints

Primary Endpoints

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

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.

Secondary Endpoints

The Proportion of CAT Score Responders in the Full Analysis Set at Week 6
6 Weeks
Mean Change From Baseline - CAT Score in the Full Analysis Set
At week 6 and week 12
Mean Change From Baseline - CAT Individual Item (1, Cough) in the Full Analysis Set
At week 6 and week 12
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
EnsifentrineEXPERIMENTALInhaled ensifentrine twice daily for 12 weeks via standard jet nebulizer in addition to standard dual (LAMA/LABA) or triple (LAMA/LABA/ICS) COPD therapy.

Interventions

NameTypeDescription
Ensifentrine 3 mg twice dailyDRUGAll subjects will receive ensifentrine.
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Eligibility Criteria

Age Range40 Years to 80 Years
SexALL
Healthy VolunteersNo
Study Sites1

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%...

Countries:United States
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Frequently asked questions about Ensifentrine twice daily

What is Ensifentrine twice daily used for?

Ensifentrine twice daily is an investigational small molecule being studied for the treatment of COPD, or chronic obstructive pulmonary disease. It is administered twice daily and is currently in Phase 3 clinical development. The drug is not yet approved and remains under investigation for this respiratory condition.

Who makes Ensifentrine twice daily?

Ensifentrine twice daily is being developed by Merck & Company, Inc., which trades under the ticker symbol MRK. The company is conducting clinical research on this small molecule for the treatment of COPD, with the drug currently in Phase 3 development.

What phase is Ensifentrine twice daily in?

Ensifentrine twice daily is in Phase 3 clinical development for the treatment of COPD. It is an investigational drug, meaning it has not been approved by regulatory authorities and is still undergoing clinical trials to evaluate its safety and efficacy in patients.

What clinical trials is Ensifentrine twice daily in?

Ensifentrine twice daily has one completed Phase 3 clinical trial registered under NCT06460493, titled "Effect of Ensifentrine Treatment on CAT Score." This study enrolled 20 participants with COPD in the United States, with a minimum age of 40 years, and included both sexes.

Is Ensifentrine twice daily the same as Ensifentrine?

Ensifentrine twice daily refers to the dosing regimen of the drug Ensifentrine, which is administered twice a day. The clinical trial NCT06460493 evaluates the effect of this twice-daily treatment on the CAT score in patients with COPD. It is the same active compound, with the dosing frequency specified.