CI

At a glance

ClinicalIndex Comparison Record
N/AActive· 154,900 enrolled
Drug / intervention
Screening Questionnaire Administration +1 moreother
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT01696981
NCT01696981N/AActive

Prostate, Lung, Colorectal, and Ovarian (PLCO) Cancer Screening Trial

National Cancer Institute (NCI)·interventional·Posted Oct 2, 2012·Updated Apr 30, 2026

In Brief

A clinical study evaluating Screening Questionnaire Administration and Sigmoidoscopy for Colon Carcinoma and Rectal Carcinoma. Active but no longer recruiting, targeting 154,900 participants across 1 site.

Detailed Summary

This clinical trial studies whether screening methods used to diagnose cancer of the prostate, lung, colon, rectum, or ovaries can reduce deaths from these cancers. Screening tests may help doctors find cancer cells early and plan better treatment for colorectal cancer.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States
Collaborators--

Timeline

N/AActive
199319941995199619971998199920002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025202620272028
First PostedOct 2, 2012
Enrollment StartNov 16, 1993
Primary CompletionMay 21, 2012
Study CompletionJun 30, 2027
TodayJul 2, 2026
Enrollment to primary: 18.5 yearsPosted 13.8 years ago

Interventions

Screening Questionnaire Administrationother

Undergo questionnaire assessments

Sigmoidoscopyprocedure

Undergo a flexible sigmoidoscopy