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Atuliflapon

Phase 2

Asthma | Small molecule | Respiratory |AstraZeneca PLC|Last Updated: Jan 14, 2026

Success Probability

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment670

FDA Designations

No designations recorded

Clinical trial landscape

Atuliflapon · 1 trial · 1 indication

Phase 2 1
NCT05251259Study to Assess the Efficacy and Safety of Atuliflapon in Moderate-to-Severe Uncontrolled AsthmaAsthma
COMPLETED670 Analytics
PHASE2COMPLETED
Study to Assess the Efficacy and Safety of Atuliflapon in Moderate-to-Severe Uncontrolled Asthma
AsthmaUnlock trial analytics

Study Endpoints

Primary Endpoints

Time to first CompEx Asthma event
Baseline up to Week 12

The clinical efficacy of Atuliflapon Dose A will be assessed by calculating a Hazard Ratio between the treatment arms, Atuliflapon Dose A vs. placebo, in a selected population (based on biomarker level). CompEx Asthma, a novel composite endpoint for exacerbations, captures asthma-worsening episodes based on a combination of diary events (worsening in daily peak expiratory flow (PEF), asthma symptoms and reliever medication use) plus severe asthma exacerbation events.

Secondary Endpoints

Time to first CompEx Asthma event (Composite endpoint for Exacerbations)
From Baseline up to Week 12
Change from baseline in Pre-bronchodilator in forced expiratory volume in 1 second (FEV1)
From Baseline up to Week 2, Week 4 and Week 12
Change from baseline in St. George's Respiratory Questionnaire
From Baseline up to Week 4 and Week 12
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Lead-in PK cohort (Atuliflapon)EXPERIMENTALRandomised participants will receive Atuliflapon in Lead-in PK period of the study.
Lead-in PK cohort (Placebo)PLACEBO_COMPARATORRandomised participants will receive matching placebo to Atuliflapon in Lead-in PK cohort of the study.
Part 1 (Atuliflapon)EXPERIMENTALRandomised participants will receive Atuliflapon in Part 1 of the study.
Part 1 (Placebo)PLACEBO_COMPARATORRandomised participants will receive matching placebo to Atuliflapon in Part 1 of the study.

Interventions

NameTypeDescription
AtuliflaponDRUGRandomised participants will receive Atuliflapon
PlaceboDRUGRandomised participants will receive matching placebo to Atuliflapon.
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Eligibility Criteria

Age Range18 Years to 80 Years
SexALL
Healthy VolunteersNo
Study Sites234

Inclusion Criteria Lead-in PK Cohort: * 18 to 55 years of age inclusive at the time of signing the informed consent at screening Visit 1. * Bodyweight 50 to 120 kg (inclusive) and BMI 18 to 32 kg/m\^2 (inclusive) at screening Visit 1. * Documented asthma diagnosis ≥12 months prior to screening Vis...

Countries:United StatesArgentinaAustraliaBulgariaChileCroatiaGermanyHungaryJapanNetherlandsPolandRomaniaSerbiaSlovakiaSouth AfricaSouth KoreaSpainTurkey (Türkiye)UkraineUnited Kingdom
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Frequently asked questions about Atuliflapon

What is Atuliflapon used for in asthma?

Atuliflapon is an investigational small molecule being studied for the treatment of moderate-to-severe uncontrolled asthma. It is being developed by AstraZeneca PLC (ticker: AZN) and is currently in Phase 2 clinical development. The drug has not been approved by regulatory authorities and remains under investigation.

What does Atuliflapon target?

Atuliflapon is a small molecule being developed by AstraZeneca for asthma. The specific molecular target of Atuliflapon has not been disclosed in the available information. The drug is currently in Phase 2 clinical trials for the treatment of moderate-to-severe uncontrolled asthma.

Who makes Atuliflapon?

Atuliflapon is being developed by AstraZeneca PLC, a biopharmaceutical company listed on the stock exchange under the ticker AZN. The drug is currently in Phase 2 clinical development for the treatment of moderate-to-severe uncontrolled asthma.

What phase is Atuliflapon in?

Atuliflapon is currently in Phase 2 clinical development. It is an investigational drug being studied for the treatment of moderate-to-severe uncontrolled asthma. The drug has not been approved by regulatory authorities and is not yet available to patients outside of clinical trials.

What clinical trials is Atuliflapon in?

Atuliflapon has one completed Phase 2 clinical trial registered under NCT05251259, titled "Study to Assess the Efficacy and Safety of Atuliflapon in Moderate-to-Severe Uncontrolled Asthma." The trial enrolled 670 participants across multiple countries including the United States, Japan, Germany, and the United Kingdom.

Is Atuliflapon the same as any other drug?

Atuliflapon is the drug name used in clinical trials for this investigational treatment for asthma. No alternative names have been associated with this drug in the available information. It is being developed by AstraZeneca and is currently in Phase 2 clinical trials.