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Erectile DysfunctionPhase 2NCT07231185

Phase 2 Efficacy Study of Sildenafil Products in Adult Men With Erectile Dysfunction

A Phase 2 study testing Hezkue, Hezkue Turbo and Galotam in people with Erectile Dysfunction, run by Aspargo Labs, Inc.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

The goal of this clinical trial is to learn how different sildenafil-based erectile dysfunction (ED) treatments affect erectile function in adult men. The main questions it aims to answer are: Does each assigned product improve erectile function over 12 weeks? What safety or tolerability issues occur when these… Read more about this study

Who is it for?
Ages 18 to 70 years, men only
Conditions the study is for
Erectile Dysfunction
What is being tested?
Hezkue, Hezkue Turbo and Galotam
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
200 participants
Where
No sites listed yet
Study dates
Jan 2026to Mar 2026
Phase
Phase 2
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male, 18 to 70 years of age.
  • Documented diagnosis of erectile dysfunction (ED) for at least 3 months, confirmed by a clinician.
  • Baseline International Index of Erectile Function-Erectile Function (IIEF-EF) domain score ≤25.
  • Sexually active and attempting sexual intercourse at least 4 times per month during the 3 months prior to screening.
  • Willing and able to attempt sexual intercourse at least once per week during the study.
  • Judged by the Investigator to be in good general health other than ED.
  • Creatinine clearance (CrCl) >80 mL/min as calculated by Cockcroft-Gault.
  • Able and willing to comply with all study procedures, including use of eDiary/ePRO tools and adherence to dosing instructions.

Who cannot join

  • Use of nitrates or nitric oxide donors in any form.
  • Use of prohibited antihypertensive medications as defined in the protocol.
  • Use of phosphodiesterase type 5 (PDE5) inhibitors within 5 days prior to baseline.
  • Use of CYP450 inhibitors within 14 days prior to first dose.
  • Use of CYP450 inducers or St. John's Wort within 28 days prior to first dose.
  • Use of any prescription or non-prescription medications, herbal products, or dietary supplements not approved by the Investigator during the required restriction period.
Show all 26Show fewer
  • Known hypersensitivity to sildenafil, tadalafil, vardenafil, peppermint oil, or any component of the investigational product.
  • Clinically significant abnormalities in screening laboratory tests, vital signs, or electrocardiograms, as judged by the Investigator.
  • Any hepatic impairment or abnormal liver function test results at screening.
  • Positive screening test for hepatitis B surface antigen, hepatitis C antibody, or HIV.
  • Clinically significant illness within 30 days prior to the first dose.
  • Significant cardiovascular disease, including recent myocardial infarction, unstable angina, uncontrolled hypertension, or severe arrhythmias.
  • History of stroke or neurological disorder that may affect sexual function.
  • Severe psychiatric disorder or substance abuse that may interfere with study participation.
  • Anatomical penile deformity (such as Peyronie's disease) that may interfere with erectile function assessments.
  • Positive urine drug screen for amphetamines, barbiturates, benzodiazepines, cocaine, opiates, phencyclidine (PCP), or MDMA.
  • Alcohol consumption exceeding 15 units per week.
  • Initiation of new nicotine products during the study period.
  • Participation in another clinical trial (other than Hezkue/Hezkue Turbo studies) within 30 days prior to screening.
  • Blood donation or significant blood loss within 3 months prior to screening, or plasma donation within 14 days prior to screening.
  • Major surgery within 3 months or minor surgery within 1 month before screening.
  • Consumption of Seville oranges, grapefruit, or pomelo within 7 days before dosing.
  • Resting systolic blood pressure outside 90-140 mmHg, diastolic blood pressure outside 50-90 mmHg, or heart rate outside 50-100 beats per minute at screening.
  • Sexual partner is pregnant or unwilling to use effective contraception during the study.
  • Any condition that, in the Investigator's opinion, would make the participant unsuitable for the study.
  • Institutionalized individuals.

Trial locations and contacts

No sites are listed yet. Contact the study team or a site near you to ask about taking part.

Mario Guralnik, PhD contact

17189381157

avi.berg@synergy-cro.com

Avi Berg contact

avi.berg@synergy-cro.com

About this study

Official title: A Phase 2 Open-Label Study to Evaluate the Efficacy, Safety, and Treatment Experience of Hezkue® and Hezkue Turbo® Compared With Select Commercially Available Sildenafil Products in Adult Men With Erectile Dysfunction (ED)

The goal of this clinical trial is to learn how different sildenafil-based erectile dysfunction (ED) treatments affect erectile function in adult men. The main questions it aims to answer are:

Does each assigned product improve erectile function over 12 weeks?

Read more

What safety or tolerability issues occur when these products are used on an on-demand basis?

Researchers will compare Hezkue® and Hezkue Turbo® with several commercially available sildenafil or sildenafil-plus-tadalafil products to see whether there are differences in effectiveness, treatment experience, or safety.

Participants will:

  • Use one assigned ED treatment on demand for 12 weeks
  • Complete electronic diaries and questionnaires about sexual-encounter outcomes and treatment satisfaction
  • Attend study visits for safety checks, laboratory tests, and assessments of erectile function
Read the detailed description

This Phase 2, open-label, parallel-group clinical trial evaluates the real-world use of multiple sildenafil-based erectile dysfunction (ED) treatments, including two oral liquid formulations (Hezkue® and Hezkue Turbo®) and several commercially available tablet, chewable, or combination (sildenafil/tadalafil) products. The study is designed to characterize differences in erectile function outcomes, safety profiles, and patient-reported treatment experiences across these products when used on an on-demand basis.

The trial includes a screening period of up to 28 days, followed by 12 weeks of treatment with one assigned product. Participants will use electronic diaries and questionnaires to record sexual-encounter outcomes, timing of effects, treatment satisfaction, and other patient-reported measures. Safety evaluations include adverse event monitoring, vital signs, clinical laboratory assessments, and targeted cardiovascular, ophthalmologic, and otologic examinations.

The design reflects typical on-demand PDE5 inhibitor use and enables comparative assessment across distinct formulations and delivery systems (liquid spray, orodispersible/chewable, and standard tablets). Exploratory analyses will examine work productivity, activity impairment, healthcare utilization, and optional partner-reported measures to better understand the broader impact of ED treatment in daily life.

This description supplements, but does not repeat, information provided in the Brief Summary, Eligibility, or Outcome Measures sections.

Being tested
Hezkue, Hezkue Turbo, Galotam, BlueChew, Pfizer Viagra
Keywords
erectile dysfunction, Viagra, sildenafil
Medical subject headings
Erectile Dysfunction

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • HezkueDrug

    Also called Sildenafil oral spray

    Hezkue® is an oral liquid formulation of sildenafil administered on an on-demand basis for the treatment period.

  • Hezkue TurboDrug

    Also called Sildenafil liquid suspension

    Hezkue Turbo® is an oral liquid suspension of sildenafil delivered via a metered-dose device, used on an on-demand basis.

  • GalotamDrug

    Also called Sildenafil tablet (Galotam)

    Galotam® is a commercially available sildenafil product administered on an on-demand basis.

  • BlueChewDrug

    Also called Sildenafil chewable tablet

    BlueChew® sildenafil chewable tablets, used on an on-demand basis.

  • Pfizer ViagraDrug

    Also called Sildenafil citrate

    Pfizer Viagra® sildenafil tablets, administered on an on-demand basis.

  • Aristo SildaristoDrug

    Also called Sildenafil

    Aristo Sildaristo® is a commercially available sildenafil tablet product used on an on-demand basis.

  • Lemonaid Health SildenafilDrug

    Also called Sildenafil (Lemonaid Health)

    Lemonaid Health-branded sildenafil tablets (Viagra equivalent), administered on an on-demand basis.

  • Ro SparksDrug

    Also called Sildenafil + Tadalafil (Ro Sparks)

    Ro Sparks® is a combination sildenafil + tadalafil product administered on an on-demand basis.

  • Hims Hard MintsDrug

    Also called Sildenafil + Tadalafil (Hims)

    Hims Hard Mints® is a combination formulation containing sildenafil + tadalafil, used on an on-demand basis.

  • Hello Cake ED Cake MedsDrug

    Also called Sildenafil + Tadalafil (Hello Cake)

    Hello Cake ED Cake Meds® is a combination sildenafil + tadalafil product administered on an on-demand basis.

Study groups in NCT07231185
Study groupRoleWhat they receive
HezkueExperimentalParticipants receive Hezkue®, an oral liquid formulation of sildenafil, used on an on-demand basis for 12 weeks.
Receives: Drug: Hezkue
Hezkue TurboExperimentalParticipants receive Hezkue Turbo®, an oral liquid suspension delivering sildenafil via a metered-dose device, used on an on-demand basis for 12 weeks.
Receives: Drug: Hezkue Turbo
GalotamActive comparatorParticipants receive Galotam®, a commercially available sildenafil product, used on an on-demand basis for 12 weeks.
Receives: Drug: Galotam
BlueChewActive comparatorParticipants receive BlueChew® sildenafil chewable tablets, used on an on-demand basis for 12 weeks.
Receives: Drug: BlueChew
Pfizer ViagraActive comparatorParticipants receive Pfizer Viagra®, a standard oral tablet formulation of sildenafil, used on an on-demand basis for 12 weeks.
Receives: Drug: Pfizer Viagra
Aristo SildaristoActive comparatorParticipants receive Aristo Sildaristo®, a commercially available sildenafil tablet product, used on an on-demand basis for 12 weeks.
Receives: Drug: Aristo Sildaristo
Lemonaid Health ViagraActive comparatorParticipants receive Lemonaid Health-branded sildenafil (Viagra), used on an on-demand basis for 12 weeks.
Receives: Drug: Lemonaid Health Sildenafil
Ro SparksActive comparatorParticipants receive Ro Sparks®, a combination sildenafil + tadalafil product, used on an on-demand basis for 12 weeks.
Receives: Drug: Ro Sparks
Hims Hard MintsActive comparatorParticipants receive Hims Hard Mints®, a combination sildenafil + tadalafil formulation, used on an on-demand basis for 12 weeks.
Receives: Drug: Hims Hard Mints
Hello Cake ED Cake MedsActive comparatorParticipants receive Hello Cake ED Cake Meds®, a combination sildenafil + tadalafil formulation, used on an on-demand basis for 12 weeks.
Receives: Drug: Hello Cake ED Cake Meds

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change From Baseline in IIEF-EF Domain Score

    Erectile function will be assessed using the International Index of Erectile Function-Erectile Function (IIEF-EF) domain score, which ranges from 1 to 30, with higher scores indicating better erectile function. Change from baseline to Week 12 will be compared across treatment arms.

    Measured: Baseline to Week 12

Secondary outcomes (9)
  1. SEP-Q2 Penetration Success Rate

    Proportion of "Yes" responses to Sexual Encounter Profile Question 2 (SEP-Q2: ability to achieve vaginal penetration) across all sexual attempts.

    Measured: Weeks 0-12

  2. SEP-Q3 Intercourse Success Rate

    Proportion of "Yes" responses to Sexual Encounter Profile Question 3 (SEP-Q3: ability to maintain erection through completion of intercourse) across all sexual attempts

    Measured: Weeks 0-12

  3. Erection Hardness Score (EHS)

    Proportion of participants achieving an EHS ≥3 and ≥4 at Weeks 4, 8, and 12.

    Measured: Weeks 4, 8, and 12

  4. Global Assessment Question (GAQ)

    Proportion of participants responding "Yes" to the GAQ ("Has the treatment improved your erections?").

    Measured: Week 12

  5. Erectile Dysfunction Inventory of Treatment Satisfaction (EDITS) Total Score

    Participant-reported satisfaction with erectile dysfunction treatment measured using the EDITS questionnaire.

    Measured: Week 12

  6. TSQM-II Scores (Effectiveness, Side Effects, Convenience, Global Satisfaction)

    Treatment satisfaction will be assessed using the Treatment Satisfaction Questionnaire for Medication, Version II (TSQM-II). Each TSQM-II domain (Effectiveness, Side Effects, Convenience, and Global Satisfaction) is scored from 0 to 100, with higher scores indicating greater satisfaction in that domain (and fewer perceived side effects on the Side Effects scale).

    Measured: Week 12

  7. Time-to-Onset of Effect

    Participant-reported time (in minutes) to erection sufficient for penetration after dosing, recorded via eDiary for each sexual attempt.

    Measured: Weeks 0-12

  8. Duration of Effect

    Participant-reported duration (in hours) of erectile effect after dosing, recorded via eDiary.

    Measured: Weeks 0-12

  9. Incidence of Adverse Events (AEs) and Serious AEs (SAEs)

    Frequency and severity of treatment-emergent adverse events, including cardiovascular, ophthalmologic, otologic, and other expected PDE5 inhibitor-related events.

    Measured: Screening through Week 13

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Nov 2025
  2. Study startJan 2026 (estimated)
  3. Primary completionMar 2026 (estimated)
  4. Study completionMar 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
200 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07231185
Sponsor's protocol ID
ASP-011-SIL
Status last verified
Nov 2025
First submitted
14 Nov 2025
Last updated
19 Nov 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Hezkue, Hezkue Turbo and Galotam in people with Erectile Dysfunction, run by Aspargo Labs, Inc.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 26 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 19 Nov 2025. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Mario Guralnik, PhD (17189381157, avi.berg@synergy-cro.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change From Baseline in IIEF-EF Domain Score (time frame: Baseline to Week 12). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Nov 2025.

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