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AP-PA02

Phase 2

Non-cystic Fibrosis Bronchiectasis | Monoclonal antibody | Infectious Disease |Armata Pharmaceuticals, Inc.|Last Updated: Jan 5, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment48

FDA Designations

No designations recorded

Clinical trial landscape

AP-PA02 · 2 trials · 6 indications

Phase 2 1Phase 1 1
NCT05616221Study to Evaluate the Safety, Phage Kinetics, and Efficacy of Inhaled AP-PA02 in Subjects With Non-Cystic Fibrosis Bronchiectasis and Chronic Pulmonary Pseudomonas Aeruginosa InfectionNon-cystic Fibrosis Bronchiectasis
COMPLETED48 Analytics
PHASE2COMPLETED
Study to Evaluate the Safety, Phage Kinetics, and Efficacy of Inhaled AP-PA02 in Subjects With Non-Cystic Fibrosis Bronchiectasis and Chronic Pulmonary Pseudomonas Aeruginosa Infection
Non-cystic Fibrosis BronchiectasisUnlock trial analytics

Study Endpoints

Primary Endpoints

P. Aeruginosa Recovery in Sputum Following Multiple Doses of AP-PA02 Administered by Inhalation
Day 17

Change from baseline in P. Aeruginosa density (colony forming units) as measured in induced sputum samples one week after end of treatment.

Incidence and Severity Treatment Emergent Adverse Events (TEAEs)
Day 1 pre-dose through End of Study Visit (28 days post last dose of study drug), up to 4 weeks for single ascending dose and up to 5.5 weeks for multiple ascending dose.

Incidence and severity of treatment emergent adverse events of single and multiple doses of AP-PA02 administered by inhalation

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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
AP-PA02EXPERIMENTALAnti-pseudomonal bacteriophage
PlaceboPLACEBO_COMPARATORInactive isotonic solution

Interventions

NameTypeDescription
AP-PA02BIOLOGICALBacteriophage administered via inhalation
PlaceboOTHERInactive Placebo administered via inhalation
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites23

Key Inclusion Criteria: * ≥ 18 years old * Body mass index (BMI) of ≥ 18 kg/m2 * Evidence of bronchiectasis per CT * Evidence of chronic pulmonary Pseudomonas aeruginosa infection * Willing to undergo sputum induction procedures at designated study visits, and willing to provide expectorated sputum...

Countries:United States
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Frequently asked questions about AP-PA02

What is AP-PA02 used for?

AP-PA02 is an investigational inhaled therapy being studied for chronic Pseudomonas aeruginosa lung infections in patients with cystic fibrosis and non-cystic fibrosis bronchiectasis. It is being developed by Armata Pharmaceuticals, Inc. (ARMP) and is currently in clinical development, with completed Phase 1 and Phase 2 trials.

What does AP-PA02 target?

AP-PA02 targets Pseudomonas aeruginosa, a bacterium that causes chronic lung infections in patients with cystic fibrosis and non-cystic fibrosis bronchiectasis. It is designed to be inhaled directly into the lungs to treat these infections.

Who makes AP-PA02?

AP-PA02 is being developed by Armata Pharmaceuticals, Inc., a biopharmaceutical company traded on the NYSE American under the ticker symbol ARMP. The company is focused on developing bacteriophage-based therapies for infectious diseases.

What phase is AP-PA02 in?

AP-PA02 is in clinical development. A Phase 1 trial in cystic fibrosis patients has been completed, and a Phase 2 trial in non-cystic fibrosis bronchiectasis patients has also been completed. It is not yet approved by the FDA and remains investigational.

What clinical trials is AP-PA02 in?

AP-PA02 has been studied in two completed clinical trials. NCT04596319 was a Phase 1/2 study in cystic fibrosis patients with chronic Pseudomonas aeruginosa lung infections, enrolling 29 participants. NCT05616221 was a Phase 2 study in non-cystic fibrosis bronchiectasis patients, enrolling 48 participants. Both trials were conducted in the United States.