Clinical trial NCT00519506: A Phase II Study to Evaluate the Efficacy of ThromboView® in the Detection of Pulmonary Emboli
Official title: A Phase II Study to Evaluate the Efficacy of Anti-Fibrin Humanized Monoclonal Antibody(DI-DD3B6/22-80B3) Fab' Fragment (ThromboView®) Conjugated With Technetium-99m in the Detection of Pulmonary Emboli
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE2
Conditions: Acute Pulmonary Embolism
Keywords: Pulmonary Embolism
PE
Lead sponsor: Agen Biomedical
Sponsor class: INDUSTRY
First posted: 2007-08-22
Enrollment: 61
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: DIAGNOSTIC

Brief summary: The aim of the study is to determine the diagnostic accuracy of 99mTc ThromboView® SPECT imaging for the detection of acute pulmonary embolism (PE) in patients for whom there is a moderate to high clinical suspicion for PE.


Eligibility criteria: Inclusion Criteria:

1. Written consent by the subject to participate in the study.
2. Moderate to high pre-test probability of acute pulmonary embolism.
3. Positive D-dimer.
4. Onset of PE symptoms occurring within the last seven days.
5. Aged 18 years or older.
6. Women of childbearing potential must have a negative serum pregnancy test (β-hCG) result at the time of enrollment into the study. Both male and female participants must agree to use effective contraception for the first 30 days after administration of 99mTc ThromboView®.

Exclusion Criteria:

1. The subject is unwilling or unable to provide written informed consent.
2. Allergy or other contraindication to intravenous iodinated contrast media.
3. Prior exposure to murine, chimeric or humanized antibodies.
4. Illicit intravenous drug use in the past 12 months.
5. Administration of therapeutic radioiodine in the past 6 months.
6. Life expectancy less than 90 days.
7. Previous participation in the current study.
8. Current enrollment in a clinical trial involving any other investigational agent.
9. Subject is unsuitable for SPECT scanning at the study Investigator's discretion (e.g. residual detectable radioactivity within the lungs due to prior imaging studies or treatment, preceding planned administration of 99mTc ThromboView®).
10. Inability to perform CTPA or 99mTc ThromboView imaging, for any reason.
11. Renal dysfunction: calculated creatinine clearance \< 30 mL/min.
12. Hepatic dysfunction: serum transaminases ≥ 3 x upper limit of normal range.
13. Hepatic dysfunction: subject has history of chronic or currently active liver disease.
14. Current pregnancy or lactation or conception intended within three months of enrollment.
15. Subject is unsuitable for the study at the study Investigator's discretion. -

Primary outcomes:
measure: Provide estimates of the sensitivity of 99mTc ThromboView® in subjects with confirmed PE, as determined by computed tomographic pulmonary angiography (CTPA) and the specificity of 99mTc ThromboView® in subjects with PE excluded by CTPA
timeFrame: June 2008
Secondary outcomes:
Other outcomes:
Locations:
city: Sacramento
country: United States
facility: UC Davis Medical Center
state: California
city: San Diego
country: United States
facility: UCSD Medical Center
state: California
city: Detroit
country: United States
facility: Henry Forde Hospital
state: Michigan
city: St. Louis
country: United States
facility: Washington University School of Medicine at St. Louis
state: Missouri
city: Hamilton
country: Canada
facility: McMaster University Medical Center
state: Ontario
city: Hamilton
country: Canada
facility: St. Joseph's Hospital
state: Ontario
Study officials:
affiliation: UCSD Medical Center
name: Timothy Morris, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Morris TA, Gerometta M, Yusen RD, White RH, Douketis JD, Kaatz S, Smart RC, Macfarlane D, Ginsberg JS. Detection of pulmonary emboli with 99mTc-labeled anti-D-dimer (DI-80B3)Fab' fragments (ThromboView). Am J Respir Crit Care Med. 2011 Sep 15;184(6):708-14. doi: 10.1164/rccm.201104-0624OC. Epub 2011 Jun 16.