At a glance

ClinicalIndex Comparison Record

Phase 3Completed

Drug / intervention

ventilation-perfusion ratio +1 moreprocedure

Likely dose

Not stated in record

Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

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Search/NCT00000566

NCT00000566Phase 3Completed

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Prospective Investigation of Pulmonary Embolism Diagnosis (PIOPED)

National Heart, Lung, and Blood Institute (NHLBI)·interventional·Posted Oct 28, 1999·Updated Apr 15, 2016

In Brief

A Phase 3 clinical trial evaluating ventilation-perfusion ratio and angiography for Lung Diseases and Pulmonary Embolism. Completed.

Detailed Summary

To evaluate the sensitivity and specificity of two major, widely used technologies, radionuclear imaging (ventilation-perfusion scanning) and pulmonary angiography, for the diagnosis of pulmonary embolism.

Study Details

Study Typeinterventional

Allocation--

Masking--

Primary Purpose--

ConditionsLung Diseases, Pulmonary Embolism

Countries--

Collaborators--

Timeline

Phase 3CompletedFinished

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Enrollment StartSep 1983

Study CompletionDec 1989

First PostedOct 1999

TodayJul 2026

First PostedOct 28, 1999

Enrollment StartSep 1, 1983

Study CompletionDec 1, 1989

TodayJul 2, 2026

Posted 26.7 years ago

Interventions

ventilation-perfusion ratioprocedure

angiographyprocedure