Study completion date changed from estimate of Aug 20, 2026 to Sep 17, 2026
Eligibility criteria expanded, about 33 words
Secondary endpoints revised (4)
MinorStudy completion pushed from May 20, 2026 to Aug 20, 2026v20
NotableResults first posted: Jan 29, 2026v19Show 9 more changesShow less
Primary endpoints: 11 to 6
Trial status: Recruiting to Active, Not Recruiting
Enrollment target: estimated 125 to confirmed 47
Primary completion date changed from estimate of Jul 19, 2025 to May 31, 2024
Study completion date: Jan 20, 2026 to May 20, 2026
Interventions: Nicotine Mini-Lozenge (Drug), Standardized Research E-cigarette (SREC) (Drug) to Standardized Research E-cigarette (SREC) (Drug)
Secondary endpoints: 7 to 4
Site details revised
Study arms: 3 to 1
NotablePrimary completion date: Jul 19, 2024 to Jul 19, 2025
Study completion date: Jan 20, 2025 to Jan 20, 2026
v18
Re-verified, no change to tracked fieldsv17
Show 15 earlier versionsHide 15 earlier versions
NotablePrimary completion date: Dec 19, 2023 to Jul 19, 2024
Study completion date: Jan 20, 2024 to Jan 20, 2025
v16
MinorPrimary completion date: Jul 19, 2023 to Dec 19, 2023
Study completion date: Sep 20, 2023 to Jan 20, 2024
v15
NotablePrimary completion date: Sep 15, 2022 to Jul 19, 2023
Study completion date: Jan 15, 2023 to Sep 20, 2023
v14
NotableTrial status: Not Yet Recruiting to Recruiting
Study sites: 0 to 1
Start date changed from estimate of Jun 2022 to May 11, 2022
v13
NotableStart date: Mar 2022 to Jun 2022v12
NotableStart date: Dec 2021 to Mar 2022v11
NotableStart date: Aug 2021 to Dec 2021v10
NotableStart date: Feb 2021 to Aug 2021v9
NotablePrimary completion date: Sep 15, 2021 to Sep 15, 2022
Start date: Nov 2020 to Feb 2021
Study completion date: Jan 15, 2022 to Jan 15, 2023
v8
NotableStart date: Jul 2020 to Nov 2020v7
NotableStart date: Feb 2020 to Jul 2020v6
NotableStart date: Oct 2019 to Feb 2020v5
NotableStart date: Aug 2019 to Oct 2019
Primary completion date: Jul 15, 2021 to Sep 15, 2021
Study completion date: Nov 15, 2021 to Jan 15, 2022
v4
NotablePrimary endpoints: 6 to 11v3
NotablePrimary endpoints revised (6)v2
Study First Submitted
Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
Minor: routine progress and housekeeping, such as sites added or enrollment closed.
This study is focused on characterizing the toxic and carcinogenic potential of the Standardized Research E-cigarette (SREC) developed by the National Institute on Drug Abuse. In the environment of continuously changing e-cigarette market, SREC was developed as a model e-cigarette that will remain available for an extended period of time and can be used as a bridging element in various studies aimed at evaluating the value and limitations of e-cigarettes as tobacco risk reduction tools. Our overall goal is to generate initial reference data on chemical exposures and associated effects in smokers switching to SREC.