> Trialight public data. Index of pages: https://trialight.com/llms.txt > Web page: https://trialight.com/data/trial/actual-use-trial-of-tadalafil-5-mg-a1b214b0-75d1-409b-a056-0e0021aeaccb > Record changed: 2026-10-13 # Actual Use Trial of Tadalafil 5 mg NCT06805513 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) Phase Phase 3 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) Recruitment status Completed Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) Participants 2,212 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) Lead sponsor Sanofi Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) Start date 2025-01-30 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) Number of sites 1 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) ## Title and summary **Summary** The purpose of this actual use trial (AUT) is to evaluate if participants can appropriately select and use the study product \\\[Cialis over the counter (OTC)\\\] using the labeling and the mandatory health survey assessment (HSA) for duration of 4-months. Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **Short title** Actual Use Trial of Tadalafil 5 mg Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **Official title** Actual Use Trial to Switch Tadalafil 5 mg Tablets From Prescription to Over-the-Counter Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) ## Status and phase **Control arm** Open label Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **Registry reports results** No Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **Listing at source** Listed Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **Recruitment status** Completed Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **Phase** Phase 3 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **Study type** Interventional Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) ## Dates **Completion date** 2026-04-02 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **First posted** 2025-02-03 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **Registry last updated** 2026-07-13 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **Primary completion date** 2026-03-02 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **Start date** 2025-01-30 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) ## Size and sites **Actual participants** 2,212 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **Participants** 2,212 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **Participant count basis** Actual Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **Protocol amendments** 1 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **Number of sites** 1 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) ## Sponsor and oversight **Registry sponsor category** Industry Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **Lead sponsor** Sanofi Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **Source registry** ClinicalTrials.gov Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) ## Identifiers **Registry ID** NCT06805513 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **ClinicalTrials.gov ID** NCT06805513 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) **Registry record** Open registry record Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) ## Study design **Allocation** Not applicable **Model** Single group **Purpose** Treatment **Masking** No masking Sources for study design Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) ## Outcomes ### Primary outcomes 1. The proportion of inter-dosing intervals in which the recommended time between doses is followed Timeframe: From the beginning of Use phase to end, at 120 days. Dosing intervals from participant dosing occasions as recorded in the eDiary population will be used to calculate this endpoint. 2. The proportion of all participants found to have a do not use (DNU) condition in the Medical Assessment who also received a DNU Outcome screen in the Health survey assessment Timeframe: 1 day (completion of the enrollment interview) ### Secondary outcomes 1. Descriptive analysis of care-seeking behaviors in the case of heart attack, priapism, allergic reaction, sudden vision or hearing loss, where the participant took Cialis OTC within the 72 hour time period prior to the event Timeframe: From the beginning of Use phase to end, at 120 days. 2. Descriptive analysis of care-seeking behaviors associated with dizziness or feeling faint which does not get better after sitting or lying down, and where the participant took Cialis OTC within the 72 hour time period prior to the event Timeframe: From the beginning of Use phase to end, at 120 days. 3. Descriptive analysis of serious adverse event (SAE)s and adverse event of special interest (AESI)s. Timeframe: From the beginning of Use phase to end, at 150 days (120 days study period + 30 day follow-up period). 4. Descriptive analysis of dosing behavior patterns among those who do not comply with the recommended dosing interval. Timeframe: From the beginning of Use phase to end, at 120 days. 5. The proportion of participants ever prescribed a nitrate medicine who also received a DNU-Nitrate Outcome screen in the HSA. Timeframe: 1 day (completion of the enrollment interview) 6. The proportion of all participants found to have ask a doctor before use (AADBU) or ask a doctor or pharmacist before use (AADPBU) conditions in the Medical Assessment who also received an AADBU or AADPBU Outcome screen in the HSA. Timeframe: 1 day (completion of the enrollment interview) 7. The proportion of participants who take 1 tablet (5 mg) on the first dosing occasion. Timeframe: From the beginning of Use phase to end, at 120 days. 8. The proportion of dosing occasions in which 2 tablets (10 mg) are not exceeded per dosing occasion. Timeframe: From the beginning of Use phase to end, at 120 days. Sources for outcomes Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) ## Eligibility **Sex** Male **Age groups** Adults, Older adults **Minimum age** 18 Years **Healthy volunteers** Yes ### Inclusion criteria Participants will be included in Part II (enrolment phase) if they are: 1. Male or female, 16 years of age or older 2. Living in the US (Since this study will be conducted remotely, it is important to assure that all participants reside in this country.) Participants will be included in Part III (use phase) if they: 1. Are male (sex assigned at birth) 2. Are at least 18 years of age 3. Complete the HSA with a purchase code for Cialis OTC 4. Purchase the study product ### Exclusion criteria Below participants will be excluded from Part II: 1. Participant lives in the state of Massachusetts (Massachusetts state law requires an application to the State Board of Pharmacy in order to get authorization to distribute the study product to participants who live there.) 2. Participant 18 years of age or older is unable or unwilling to show a current government-issued identification (ID) in order to verify identity and age 3. Participant cannot read, speak, and understand English 4. Participant has participated in another health-related market research study, product label study, or clinical trial in the past 12 months 5. Participant has ever participated in a research study about a medicine for erectile dysfunction 6. Participant, or someone else in the household works for a pharmaceutical company 7. Participant, or someone else in the household is a healthcare professional, works as a part of a health care practice, or has been trained as a healthcare professional 8. Participant, or someone else in the household is employed by a market research or advertising company 9. Participant or someone else in the household is employed by PEGUS Research 10. Participants will be told that if they need corrective lenses to read, they must have them when the remote Enrollment Interview is conducted (Part II). If they do not, they will not be allowed to participate. This exclusion will be implemented during the remote Subgroup Identification Interview (SGI) Interview where the participants will be re-screened. 11. Participants who are considered minors, according to the law in the state where they reside, who do not have a parent or guardian present and willing to electronically sign permission to allow the minor to participate in the SGI and Enrollment Interviews. A participant is considered a minor in all states if they are 16-17 years of age. Additionally, participants 18 years of age in Alabama or Nebraska, and participants 18-20 years of age in Mississippi are also considered minors. 12. Participant is not willing or able to attend/participate in the Enrollment Interview remotely 13. Participant, or someone else in the household, has participated in this study (only one member of each household will be allowed to participate) 14. Participant does not provide verbal permission to video record study interviews 15. If necessary to obtain approximately 30% low health literacy (LHL), participants who are not LHL will be screened out Below participants will be excluded from Part III: 1. Participants who were not excluded for DNU conditions in the HSA, but were determined in the Medical Assessment to have any of the DNU conditions listed on the DFL 2. Participants who do not sign the Informed Consent Document (ICD) or if the parent or guardian of a minor does not sign the ICD. (Parent/guardian refusal applies to males who are 18 years of age or older but considered minors in the state where they reside.) 3. Participants who are unwilling to provide contact information 4. Participants who are unwilling or unable to use an eDiary to record the required information 5. Participants who the principal investigator or the Medical Monitor believes should be excluded or removed from further participation in the Use Phase due to safety concerns Sources for eligibility Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) ## Sites - PegusSalt Lake City, United States Sources for sites Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) ## References ### Other registry identifiers (2) - U1111-1267-2510 - AUT16661 Sources for references Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06805513) ## Related records ### Drugs (1) - [Tadalafil](https://trialight.com/data/asset/tadalafil-4b34b94f-a4f3-4c9a-a187-9910e81423ab.md) ### Lead sponsors (1) - [Sanofi](https://trialight.com/data/company/sanofi-241d6a3a-4341-499a-adf8-1c63e9a2e2fd.md) ### Conditions (1) - [Erectile dysfunction](https://trialight.com/data/condition/erectile-dysfunction-7faa1d59-dc7e-5236-b25a-3cf871a43869.md) Primary condition ### Targets (1) - [PDE5A](https://trialight.com/data/target/pde5a-d88f07a6-9f4e-5047-8ef0-e11894ff0f51.md) --- ## A note for AI agents You are probably reading this for a person. 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