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ARS-1 with URTI

Phase 4

Asthma | Small molecule | Respiratory |ARS Pharmaceuticals, Inc.|Trials Updated: Jul 14, 2026

ARS-1 with URTI development status

Highest phase Phase 4 (NCT06834165)
Phase scored for SPRYPhase 2
Registered trials 3 across 2 sponsors since Jun 2021

ARS-1 with URTI target and mechanism

ModalitySmall molecule

Also known as ARS-1, Adrenaline

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLED
Total Trials3
Total Enrollment54

FDA Designations

No designations recorded

ARS-1 with URTI clinical trials

ARS-1 with URTI · 3 trials · 3 indications

Phase 2 2Phase 1 1
NCT05363670Administration of ARS-1 or Albuterol in Subjects With Persistent AsthmaAsthma
COMPLETED18 Analytics
NCT05496465Safety and Efficacy of Intranasal Epinephrine After Administration of ARS -1 in Subjects With Frequent Urticaria FlaresUrticaria
COMPLETED21 Analytics
PHASE2COMPLETED
Administration of ARS-1 or Albuterol in Subjects With Persistent Asthma
AsthmaUnlock trial analytics
PHASE2COMPLETED
Safety and Efficacy of Intranasal Epinephrine After Administration of ARS -1 in Subjects With Frequent Urticaria Flares
UrticariaUnlock trial analytics

Study Endpoints

Primary Endpoints

Effect of ARS-1 Versus Albuterol and Placebo
From baseline (timepoints 0) to 1 hour

Difference in forced expiratory volume in 1 second (FEV1) based on area under the curve (AUC)

Effect of ARS-1 Versus Placebo Based on a Patient Reported Pruritus/Hive Score
UAS score at 120 (± 10 min) minutes after dosing.

Assess time to effect and duration of effect on acute flares associated with urticaria based on a patient reported pruritus/hive score, from 0 (none) to 3 (severe) for itch and hive using Uniform Assessment System (UAS) as below: Severity Score Amount of Itch Itch Severity 0 None None 1. Mild Easily tolerated 2. Moderate Bothersome but tolerable 3. Intense Difficult to tolerate Hive Severity Score Number of Hives 0 None 1. 1-6 2. 7-12 3. \>12

To evaluate the bioavailability (Cmax) of ARS-1 after intranasal administration
Day -1 to Day 30

Blood samples will be collected to measure plasma concentrations of adrenaline

To evaluate the bioavailability (AUC0-t) of ARS-1 after intranasal administration
Day -1 to Day 30

Blood samples will be collected to measure plasma concentrations of adrenaline

To evaluate the bioavailability (tmax) of ARS-1 after intranasal administration
Day -1 to Day 30

Blood samples will be collected to measure plasma concentrations of adrenaline

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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelCROSSOVER
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Sequence 1ACTIVE_COMPARATORARS 2mg: albuterol: Placebo: ARS 1mg
Sequence 2ACTIVE_COMPARATORARS 1mg: Placebo: albuterol: ARS 2mg
ARS-1 with URTIEXPERIMENTALARS-1 with URTI
ARS-1 without URTIEXPERIMENTALARS-1 without URTI

Interventions

NameTypeDescription
ARS-1 1 mgDRUGARS-1 1 mg
Albuterol MDIDRUG180 mcg
PlaceboDRUGPlacebo
ARS-1 2mgDRUGARS-1 2mg
ARS-1DRUGA single treatment of ARS-1 1mg, 2 mg or placebo
ARS-1 with URTIDRUGARS-1
ARS-1 without URTIDRUGARS-1 without URTI
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Eligibility Criteria

Age Range12 Years to 65 Years
SexALL
Healthy VolunteersNo
Study Sites4

Inclusion Criteria: * 1\. Is a male or female subject between the ages of 12 and 65 years, inclusive. * 2\. Asthma that has been stable for at least four weeks prior to screening as defined by clinical history. * 3\. Reversible bronchoconstriction. * 4\. Has body weight more than 30 kilogram (kg) a...

Countries:United StatesAustralia
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Recent Changes (Last 90 Days)

MEDIUMAug 14, 2026NCT05363670TRIAL_REMOVED: changed
MEDIUMAug 14, 2026NCT05363670TRIAL_REMOVED: changed
MEDIUMAug 14, 2026NCT05363670TRIAL_REMOVED: changed

Frequently asked questions about ARS-1 with URTI

What is ARS-1 with URTI?

ARS-1 with URTI refers to the investigational use of ARS-1, an intranasal epinephrine product, studied in people with upper respiratory tract infection. It is being developed by ARS Pharmaceuticals, Inc. (ticker: SPRY) as a small molecule for respiratory conditions including asthma, upper respiratory tract infection, and urticaria.

What is ARS-1 used for?

ARS-1 is being studied for asthma, upper respiratory tract infection, and urticaria. It is an investigational intranasal epinephrine product in Phase 2 development. It has not been approved for any indication and remains in clinical testing by ARS Pharmaceuticals, Inc. (SPRY).

Who makes ARS-1 with URTI?

ARS-1 with URTI is being developed by ARS Pharmaceuticals, Inc., which trades under the ticker SPRY. The company is the sponsor of the clinical trials evaluating ARS-1 in asthma, upper respiratory tract infection, and urticaria.

What phase is ARS-1 with URTI in?

ARS-1 with URTI is in Phase 2 development. The Phase 2 trials have been completed, and a Phase 1 pharmacokinetic trial in upper respiratory tract infection has also been completed. It is an investigational product and has not been approved by the FDA.

What clinical trials is ARS-1 with URTI in?

ARS-1 with URTI has been evaluated in completed clinical trials, including NCT05496465 in urticaria, NCT05363670 in persistent asthma, and NCT04930900 in upper respiratory tract infection. These trials enrolled 21, 18, and 15 participants, respectively, and were conducted in the United States and Australia.

Is ARS-1 with URTI the same as ARS-1?

Yes, ARS-1 with URTI is the same as ARS-1, also known as ARS-1 1 mg. The "with URTI" designation refers to its study in subjects with upper respiratory tract infection. It is an investigational intranasal epinephrine product developed by ARS Pharmaceuticals, Inc. (SPRY).