Track this trial free. DataLookout checks ClinicalTrials.gov daily and emails you which fields changed on NCT04665856 (status, enrollment, completion dates, endpoints, sites) when this record is updated. Free accounts track up to 5 trials.
MinorTrial completedStudy completion date changed from estimate of Jun 30, 2026 to Nov 17, 2025 · Eligibility criteria expanded, about 40 words · Secondary endpoints: 18 to 21 · 1 moreShow 4 more changesShow less
Study completion date changed from estimate of Jun 30, 2026 to Nov 17, 2025
Eligibility criteria expanded, about 40 words
Secondary endpoints: 18 to 21
Primary endpoints revised (2)
MinorRe-verified, no change to tracked fieldsv37
NotableResults first posted: Oct 29, 2025Secondary endpoints: details revised at 3 of 18 entriesv36Show 1 more changeShow less
Secondary endpoints: details revised at 3 of 18 entries
Minor2 versionsRe-verified since Aug 15, 2022, no change to tracked fieldsv20-v21
NotablePrimary completion date: Jun 28, 2022 to Apr 27, 2023v19
MinorEnrollment target: estimated 120 to confirmed 123v18
MinorRe-verified, no change to tracked fieldsv17
MinorTrial status: Recruiting to Active, Not RecruitingSite details revised at 16 of 16 sitesv16Show 1 more changeShow less
Site details revised at 16 of 16 sites
NotableTrial status: Active, Not Recruiting to RecruitingSite details revised at 16 of 16 sitesv15Show 1 more changeShow less
Site details revised at 16 of 16 sites
MinorTrial status: Recruiting to Active, Not RecruitingEnrollment target: estimated 128 to confirmed 120 · Site details revised at 16 of 16 sitesv14Show 2 more changesShow less
Enrollment target: estimated 128 to confirmed 120
Site details revised at 16 of 16 sites
NotableTrial status: Active, Not Recruiting to RecruitingSite details revised at 16 of 16 sitesv13Show 1 more changeShow less
Site details revised at 16 of 16 sites
MinorRe-verified, no change to tracked fieldsv12
MinorTrial status: Recruiting to Active, Not RecruitingSite details revised at 16 of 16 sitesv11Show 1 more changeShow less
Site details revised at 16 of 16 sites
MinorSite details revised at 2 of 16 sitesv10
MinorStudy sites: 17 to 16v9
MinorStudy sites: 18 to 17v8
MinorSite details revised at 1 of 18 sitesv7
NotablePrimary endpoints revised (2)Enrollment target: 108 to 128 · Eligibility criteria expanded, about 49 words · Secondary endpoints: 10 to 17 · 1 morev6Show 4 more changesShow less
Stopped: an ongoing trial was terminated, suspended or withdrawn.
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.
The purpose of this multicenter study in China is to evaluate the safety and efficacy of tiragolumab plus atezolizumab and carboplatin and etoposide (CE) compared with placebo plus atezolizumab and CE in participants with untreated extensive-stage small cell lung cancer.