NCT06782659

Brief Summary

The objective of this phase 1, open-label, single-center, two-way crossover trial is to evaluate the pharmacokinetics (PK), safety, and tolerability of 100 mg ASP-001 oral liquid suspension versus 100 mg Viagra (sildenafil citrate) tablets in fasted, healthy male volunteers

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
56

participants targeted

Target at P50-P75 for phase_1

Timeline
Completed

Started Jan 2025

Shorter than P25 for phase_1

Geographic Reach
1 country

2 active sites

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2025

Completed
7 days until next milestone

First Submitted

Initial submission to the registry

January 8, 2025

Completed
12 days until next milestone

First Posted

Study publicly available on registry

January 20, 2025

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2025

Completed
Last Updated

January 20, 2025

Status Verified

January 1, 2025

Enrollment Period

2 months

First QC Date

January 8, 2025

Last Update Submit

January 16, 2025

Conditions

Keywords

Erectile dysfunctionViagraSildenafilbioequivalence

Outcome Measures

Primary Outcomes (7)

  • Cmax

    The PK profile of ASP-001 and Viagra in healthy male subjects. Calculation of maximum plasma concentration (Cmax) over the specified timeframe.

    Baseline and at 24 different timepoints during the 24 hour post-dose

  • Absorption

    To determine if the rate and extent of absorption are similar for 100 mg of ASP-001 administered as 8 pumps of the 25 mg/mL oral liquid suspension of sildenafil compared to 100 mg Viagra (sildenafil) administered in the form of a film-coated tablet.

    Baseline and at several timepoints during the 24 hour post-dose

  • AUCt

    The PK profile of ASP-001 and Viagra in healthy male subjects. Calculation of the area under the plasma concentration versus time curve will be calculated using the linear trapezoidal rule from the zero time point to the last quantifiable concentration (AUCt).

    Baseline and at 24 different timepoints during the 24 hour post-dose

  • AUCi

    The PK of ASP-001 and Viagra in healthy male subjects. The area under the plasma concentration versus time curve from zero to infinity (AUCi) will be calculated by adding the last quantifiable concentration (Ct)/ elimination rate contant (Kel) to AUCt.

    Baseline and at 24 different timepoints during the 24 hour post-dose

  • Tmax

    The PK of ASP-001 and Viagra in healthy male subjects. Calculation of the time of the maximum measured plasma concentration (Tmax). If the maximum plasma concentration occurs at more than one time point, the first is chosen as Tmax.

    Baseline and at 24 different timepoints during the 24 hour post-dose

  • Kel

    The PK of ASP-001 and Viagra in healthy male subjects. Calculation of the terminal elimination rate constant obtained from the slope of the line, fitted by linear least squares regression, through the terminal points of the log (base e) of the concentration versus time plot for these timepoints.

    Baseline and at 24 different timepoints during the 24 hour post-dose

  • tHalf

    PK of ASP-001 and Viagra in healthy male subjects. The half-life will be calculated by the equation tHalf = 0.693/ Kel. Apparent elimination half-life.

    Baseline and at 24 different timepoints during the 24 hour post-dose

Secondary Outcomes (2)

  • Number of participants with oral irritation, dizziness, or headache.

    Baseline and different timepoints during the 24 hour post-dose

  • Number of participants with adverse events

    Baseline and at several timepoints during the 24 hours post-dose

Study Arms (2)

Arm 1 - ASP-001 and Viagra

EXPERIMENTAL

Participants receive 100 mg of ASP-001 followed by a 6 day washout before receiving 100 mg of Viagra

Drug: ASP-001Drug: ViagraDevice: ASP-001

Arm 2 - Viagra and ASP-001

EXPERIMENTAL

Participants receive 100 mg of Viagra followed by a 6 day washout before receiving 100 mg of ASP-001

Drug: ASP-001Drug: ViagraDevice: ASP-001

Interventions

Oral liquid suspension of sildenafil

Arm 1 - ASP-001 and ViagraArm 2 - Viagra and ASP-001
ViagraDRUG

Sildenafil film-coated tablet

Arm 1 - ASP-001 and ViagraArm 2 - Viagra and ASP-001

Eligibility Criteria

Age18 Years - 55 Years
Sexmale(Gender-based eligibility)
Gender Eligibility DetailsCisgender
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • The participant must be informed of the nature of the study and voluntarily agree to participate by signing an informed consent form prior to any study-specific procedures.
  • Participants must be healthy male volunteers aged 18 to 55 years (inclusive) at the time of dosing.
  • Participants must have a body mass index between 18.0 and 29.9 kg/m² (inclusive) and a body weight of 50 to 100 kg (inclusive).
  • Participants must be judged by the Investigator or designee to be in good general health, as documented by medical history, physical examination, clinical laboratory tests, vital signs, and 12-lead electrocardiogram (ECG). Any deviations from normal ranges must be assessed and deemed not clinically significant by the Investigator or designee.
  • Participants must have a creatinine clearance (CrCl) value greater than 80 mL/min, as calculated by the Cockcroft-Gault equation.
  • Participants must agree to practice an acceptable method of contraception as outlined in the protocol.

You may not qualify if:

  • Unwillingness or inability to follow the procedures specified by the protocol.
  • Participant received any investigational drug/product within 30 days prior to the first dose.
  • History of significant renal, hepatic, cardiovascular (including orthostatic hypotension), psychiatric, neoplastic, inflammatory, infectious, diabetes mellitus, or other disease which, in the opinion of the Investigator, represents a safety risk for taking part in the study.
  • Presence of any clinically significant results from laboratory tests, vital signs assessments, and electrocardiograms, as judged by the Investigator and/or designee.
  • Any degree of hepatic impairment based on liver function testing (abnormal ALT, AST, bilirubin, alkaline phosphatase, prothrombin time and international normalized ratio during screening).
  • Demonstrates a reactive screen for hepatitis B surface antigen, hepatitis C antibody, or HIV antibody.
  • Reports a clinically significant illness during the 28 days prior to first dose (as determined by the Investigator and/or designee).
  • Subjects with known hypersensitivity to sildenafil or any component in the study medication, such as peppermint oil.
  • Reports a history of clinically significant allergies including food or drug allergies as judged by the Investigator.
  • History of drug abuse within the previous year, or a positive drug screen (amphetamines, barbiturates, benzodiazepines, cannabinoids, Cocaine, Opiates, Phencyclidine, 3,4-methylenedioxymethamphetamine (MDMA)) at screening and/or Day -1.
  • Regular alcohol consumption of \>15 units per week, with one unit being equivalent to 330mL of beer or 125 mL of wine or 25 mL to 40 mL of ≥ 40% spirits, or a positive alcohol breathalyzer test at screening and/or Day -1.
  • Reports use of CYP enzyme inhibitors within 14 days prior to Period 1 dosing.
  • Reports use of CYP enzyme inducers or St. John's Wort within 28 days prior to Period 1 dosing.
  • Use of prescription or non-prescription drugs, including individual vitamins, herbal and dietary supplements within seven days or five half-lives, whichever is longer, unless in the opinion of the Investigator and Sponsor's medical monitor the medication is not expected to interfere with the study procedures or compromise subject safety (occasional use of acetaminophen, naproxen, and ibuprofen are allowed).
  • Blood donation or significant blood loss within 3 months before screening. All volunteers will be advised not to donate blood for 30 days after completing the study.
  • +21 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Evolution Research Group, Clinical Pharmacology of Miami (CPMI)

Miami, Florida, 33014, United States

Location

Evolution Research Group, Clinical Pharmacology of Miami (CPMI)

Miami, Florida, 33172, United States

Location

MeSH Terms

Conditions

Erectile Dysfunction

Interventions

Sildenafil Citrate

Condition Hierarchy (Ancestors)

Genital Diseases, MaleGenital DiseasesUrogenital DiseasesSexual Dysfunction, PhysiologicalMale Urogenital DiseasesSexual Dysfunctions, PsychologicalMental Disorders

Intervention Hierarchy (Ancestors)

SulfonamidesAmidesOrganic ChemicalsSulfonesSulfur CompoundsPiperazinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsPurinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-Ring

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 8, 2025

First Posted

January 20, 2025

Study Start

January 1, 2025

Primary Completion

March 1, 2025

Study Completion

March 1, 2025

Last Updated

January 20, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will not share

Locations