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Vardenafil

Phase 1

Healthy Volunteer | Small molecule | Other |Gossamer Bio, Inc.|Last Updated: Sep 22, 2025

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLEDBiomarker
Total Trials1
Total Enrollment31

FDA Designations

No designations recorded

Clinical trial landscape

Vardenafil · 1 trial · 1 indication

Phase 1 1
NCT05567367A Healthy Volunteer Study Evaluating the the Safety, Tolerability, and Pharmacokinetics of RT234Healthy Volunteer
COMPLETED31 Analytics
PHASE1COMPLETED
A Healthy Volunteer Study Evaluating the the Safety, Tolerability, and Pharmacokinetics of RT234
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Study Endpoints

Primary Endpoints

Number of participants with treatment related adverse events as assessed by CTCAE v5.0
Up to to 10 days

Adverse events reported by participants and those observed by the investigator in relation to laboratory tests, vital signs, ECGs, medications used to treat adverse events, and physical examinations were analyzed.

Secondary Endpoints

Peak plasma concentration (Cmax)
Up to 10 days
Time to reach maximum concentration (Tmax)
Up to 10 days
Area under the curve (AUC)
Up to 10 days
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
RT234 0.2 mg, Single Ascending Dose (SAD)EXPERIMENTALPart 1, SAD Cohort 1A
RT234 0.6 mg followed by oral vardenafil 20mg on day 3, SADEXPERIMENTALPart 1, SAD Cohort 2A1
Oral vardenafil 20mg followed by RT234 0.6 mg on day 3, SADEXPERIMENTALPart 1, SAD Cohort 2A2
RT234 1.2 mg, SADEXPERIMENTALPart 1, SAD Cohort 3A
RT234 2.4 mg, SADEXPERIMENTALPart 1, SAD Cohort 4A
RT234 2.4 mg, Multiple Ascending Dose (MAD)EXPERIMENTALPart 2, MAD Cohort 1B

Interventions

NameTypeDescription
Drug: RT234 - vardenafil inhalation powder; Device: RS01 dry powder inhaler (RS01 DPI)COMBINATION_PRODUCTRT234 is a drug/device combination product composed of vardenafil hydrochloride as the drug constituent and will utilize RS01 DPI device.
Vardenafil Oral TabletDRUG20 mg oral vardenafil tablet.
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Eligibility Criteria

Age Range18 Years to 45 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: 1. Healthy male or female, 18 to 45 years of age (inclusive at time of informed consent) 2. Normal heart, lung, kidney, and liver function based on physical examination 3. Systolic blood pressure of 100-145 mmHg, diastolic blood pressure of 50-90 mmHg, and a resting heart rate o...

Countries:Australia
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Frequently asked questions about Vardenafil

What is Vardenafil?

Vardenafil is a small molecule drug being developed by Gossamer Bio, Inc. (GOSS). It is currently in Phase 1 clinical development for use in healthy volunteers. The drug has been studied in a completed clinical trial.

What is Vardenafil used for?

Vardenafil is being investigated for use in healthy volunteers. It is currently in Phase 1 clinical development, meaning it is an investigational drug that has not yet been approved for any medical condition.

Who makes Vardenafil?

Vardenafil is being developed by Gossamer Bio, Inc., a biopharmaceutical company traded on the stock exchange under the ticker symbol GOSS. The company is conducting clinical trials to evaluate the drug's safety and tolerability.

What phase is Vardenafil in?

Vardenafil is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by regulatory authorities and is still undergoing clinical trials to assess its safety, tolerability, and pharmacokinetics.

What clinical trials is Vardenafil in?

Vardenafil has been studied in one completed Phase 1 clinical trial, identified as NCT05567367. This trial evaluated the safety, tolerability, and pharmacokinetics of the drug in healthy volunteers in Australia, enrolling 31 participants.

Is Vardenafil the same as RT234?

Vardenafil is the drug being studied in the clinical trial NCT05567367, which is titled 'A Healthy Volunteer Study Evaluating the Safety, Tolerability, and Pharmacokinetics of RT234'. This indicates that RT234 is the investigational name used for Vardenafil in this study.