Clinical trialNCT01458639TerminatedPhase 3Interventional

Compare Technegas Ventilation-Perfusion SPECT and Xenon Ventilation-Perfusion Planar Imaging for Pulmonary Embolism

SponsorCyclomedica Australia PTY LimitedEnrollment18Pulmonary Embolism

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

Phase 3 within-subject trial of Technegas V/Q SPECT and Tc-99m macro-aggregated albumin (MAA) imaging compared to Xenon-133 V/Q planar and Tc-99m macroaggregate of albumin (MAA) imaging for the diagnosis of Pulmonary Embolism (PE).

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Investigators

The overall officials registered on this study. Names that resolve to a FindMyKOL profile link to it; the rest are shown as registered.

Akash Sharma, MD
Washington University Mallinckrodt Institute of Radiology
Principal Investigator
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David Leung, MD, PhD
Columbia University Medical Center, New York, NY
Principal Investigator
clinicaltrials.gov ↗
Edward M Aten, MD
Certus International, Inc.
Study Director
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A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

2 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States

Barnes-Jewish Hospital, Washington University
St Louis, Missouri, United States
Columbia University Medical Center
New York, New York, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

Technegas V SPECT imagingXenon-133 Ventilation Planar imaging

Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 31 Aug 2012
Primary completion: 30 Jun 2015
Completion: 30 Jun 2015
Last update posted: 10 Nov 2015
Registered enrollment: 18
Registry id: NCT01458639

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 4 Nov 2026. Registry facts are shown as registered by the study sponsor; FindMyKOL does not interpret them.