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AP-SA02

Phase 1

Bacteremia | Monoclonal antibody | Infectious Disease |Armata Pharmaceuticals, Inc.|Last Updated: Mar 23, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment56

FDA Designations

FAST_TRACKQIDP

Clinical trial landscape

AP-SA02 · 1 trial · 5 indications

Phase 1 1
NCT05184764Study Evaluating Safety, Tolerability, and Efficacy of Intravenous AP-SA02 in Subjects With S. Aureus BacteremiaBacteremia
COMPLETED56 Analytics
PHASE1COMPLETED
Study Evaluating Safety, Tolerability, and Efficacy of Intravenous AP-SA02 in Subjects With S. Aureus Bacteremia
BacteremiaUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants With Treatment-Emergent Adverse Events (Safety and Tolerability) Following Multiple Doses of Intravenous AP-Sa02.
Day 1 first dose through Day 12 or through EOS (28 days after BAT) (Day 39-81).

Incidence and severity of treatment-emergent adverse events as assessed by CTCAE v4.0. Per SAP, all patients with uncomplicated SAB (Phase 1 Cohort 1 and Cohort 2) will be combined.

Secondary Endpoints

Clinical Improvement or Response at Day 12
12 Days
Clinical Improvement or Response at 7 Days After Completion of Antibiotic Therapy as Assessed by the Investigator
7 days post completion of best available antibiotic therapy, up to 60 days.
Clinical Improvement or Response at 7 Days After Completion of Antibiotic Therapy Assessed by the CEAC
7 days post completion of best available antibiotic therapy, up to 60 days.
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Phase 2a Complicated SAB - AP-SA02EXPERIMENTALAnti-staphylococcal bacteriophage
Phase 2a Complicated SAB- PlaceboPLACEBO_COMPARATORInactive Isotonic Saline Solution
Phase 1b Uncomplicated SAB - AP-SA02EXPERIMENTALAnti-staphylococcal bacteriophage
Phase 1b Uncomplicated SAB - PlaceboPLACEBO_COMPARATORInactive Isotonic Saline Solution

Interventions

NameTypeDescription
AP-SA02BIOLOGICALBacteriophage administered via intravenous bolus infusion
PlaceboOTHERInactive Placebo administered via intravenous bolus infusion
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites28

Key Inclusion Criteria: * A hospitalized female or male ≥ 18 years old * Positive blood culture for Staphylococcus aureus (SA) * Source of SA infection controlled, or a plan for source control, if relevant * Not pregnant or breastfeeding and is not of reproductive potential or agrees to use contrac...

Countries:United StatesAustralia
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Frequently asked questions about AP-SA02

What is AP-SA02 used for?

AP-SA02 is an investigational monoclonal antibody being developed for bacteremia, specifically Staphylococcus aureus bacteremia. It is being studied in patients with S. aureus bloodstream infections. The drug is administered intravenously and is currently in Phase 1 clinical development.

What does AP-SA02 target?

AP-SA02 is a monoclonal antibody designed to target Staphylococcus aureus, the bacteria responsible for S. aureus bacteremia. By targeting this pathogen, the antibody aims to help the immune system clear the infection. It is being evaluated for safety, tolerability, and efficacy in patients with S. aureus bacteremia.

Who makes AP-SA02?

AP-SA02 is being developed by Armata Pharmaceuticals, Inc., a biopharmaceutical company traded on the stock market under the ticker symbol ARMP. The company is conducting clinical trials to evaluate the drug's safety and efficacy in treating Staphylococcus aureus bacteremia.

What phase is AP-SA02 in?

AP-SA02 is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by regulatory authorities. The Phase 1 trial has been completed, and the drug is still in the early stages of clinical testing to assess its safety, tolerability, and potential efficacy.

What clinical trials is AP-SA02 in?

AP-SA02 has one completed clinical trial registered under NCT05184764, titled 'Study Evaluating Safety, Tolerability, and Efficacy of Intravenous AP-SA02 in Subjects With S. Aureus Bacteremia.' This Phase 1 study enrolled 56 participants in the United States and Australia, and it was a randomized, double-blind, placebo-controlled trial.

Is AP-SA02 the same as any other drug?

AP-SA02 is a distinct investigational monoclonal antibody developed by Armata Pharmaceuticals. It is not known to be the same as any other approved or marketed drug. Its unique mechanism targets Staphylococcus aureus for the treatment of bacteremia, and it is being studied under its own clinical trial program.