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Evaluation of ST2 and IL-33 in Patients Presenting to the Emergency Department With Trouble Breathing

The recruitment status of this study is unknown because the information has not been verified recently.
Verified June 2008 by The Cleveland Clinic.
Recruitment status was  Recruiting
Critical Diagnostics
Information provided by:
The Cleveland Clinic Identifier:
First received: June 27, 2008
Last updated: NA
Last verified: June 2008
History: No changes posted

Trouble breathing (dyspnea) is a nonspecific symptom associated with many diseases such as chronic obstructive pulmonary disease (lung disorder in which the flow of air to the lungs is blocked), asthma, pneumonia, pulmonary hypertension (high blood pressure in the lungs), congestive heart failure (fluid build-up in the lungs because the heart is not pumping normally) and pulmonary embolism (blood clot in the lungs). The purpose of this study is to test two blood markers called ST2 and IL-33. Blood markers are proteins or other compounds in your blood that physicians use to diagnose different diseases and to determine what the course of an illness will be. In preliminary research studies, ST2 and IL-33 have been elevated in patients with a wide variety of diseases where the lungs are the primary organs involved. This research study will further investigate the ability of ST2 and IL-33 to predict the severity of disease and the possible use of ST2 and IL-33 in the diagnosis of various lung diseases.

Chronic Obstructive Pulmonary Disease
Pulmonary Embolism
Pulmonary Hypertension

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Evaluation of ST2 and IL-33 for Risk Stratification and Diagnosis in Patients Presenting to the Emergency Department With Dyspnea

Resource links provided by NLM:

Further study details as provided by The Cleveland Clinic:

Primary Outcome Measures:
  • Any cause of mortality [ Time Frame: 180 days ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Rehospitalization of a pulmonary etiology and/or significant lung morbidity (transplant, intubation, ARDS, pneumonia, pulmonary hypertension, etc) [ Time Frame: 180 days ] [ Designated as safety issue: No ]
  • Mortality with a pulmonary specific etiology [ Time Frame: 180 days ] [ Designated as safety issue: No ]
  • Any cause morbidity [ Time Frame: 180 days ] [ Designated as safety issue: No ]

Biospecimen Retention:   Samples Without DNA


Estimated Enrollment: 200
Study Start Date: April 2008
Estimated Study Completion Date: June 2009
Estimated Primary Completion Date: June 2009 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

Patients presenting to the Cleveland Clinic Emergency Department with signs and/or symptoms of dyspnea (trouble breathing)


Inclusion Criteria:

  • Presenting to the Emergency Department with signs and symptoms of dyspnea (short of breath, tachypnea, hyperventilation, etc) within the last 24 hours
  • Normal cardiac output as measured by noninvasive bioimpedance
  • Greater than or equal to 18 years of age
  • Patient or legal representative willing and able to provide informed consent and comply with study procedures

Exclusion Criteria:

  • A history of congestive heart failure and a BNP > 500pg/mL (or NTproBNP > 900pg/mL) if obtained by the treating physician
  • Treating physician suspects patient has new onset congestive heart failure
  • ECG changes diagnostic of acute myocardial ischemia/infarction
  • Ischemic chest pain within the prior 24 hours by history
  • Obvious chest trauma
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00707811

Contact: Justin L Benoit, BS
Contact: William F Peacock, MD 216-445-4557

United States, Ohio
The Cleveland Clinic Recruiting
Cleveland, Ohio, United States, 44195
Contact: Justin L Benoit, BS   
Contact: William F Peacock, MD    216-445-4557   
Principal Investigator: Justin L Benoit, BS         
Sponsors and Collaborators
The Cleveland Clinic
Critical Diagnostics
Principal Investigator: Justin L Benoit, BS The Cleveland Clinic
  More Information

No publications provided by The Cleveland Clinic

Additional publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Justin Benoit, Medical Student, The Cleveland Clinic Identifier: NCT00707811     History of Changes
Other Study ID Numbers: CCED08043
Study First Received: June 27, 2008
Last Updated: June 27, 2008
Health Authority: United States: Institutional Review Board

Keywords provided by The Cleveland Clinic:
Shortness of Breath
Trouble Breathing

Additional relevant MeSH terms:
Hypertension, Pulmonary
Lung Diseases
Lung Diseases, Obstructive
Pulmonary Disease, Chronic Obstructive
Pulmonary Embolism
Cardiovascular Diseases
Embolism and Thrombosis
Respiratory Tract Diseases
Vascular Diseases processed this record on November 24, 2014