DiabetesNCT00591903
Pilot Study to Assess the Proteome in Human Atrial Tissue
An observational study of Diabetes and Cardiomyopathy, run by National Heart, Lung, and Blood Institute (NHLBI) at 1 site in United States.
Trial summary
The concept of diabetic cardiomyopathy was initially defined more than 30 years ago, as cardiac failure in diabetic subjects in the absence of underlying coronary artery disease. Read more about this study
- Who is it for?
- Ages 18 to 80 years
- Conditions the study is for
- Diabetes, Cardiomyopathy
- How many people
- 600 participants
- Where
- 1 siteUnited States
- Study dates
- 14 Dec 2007to 23 Sep 2011
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 80 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Subjects must be 18-80 years of age.
- Subjects must provide informed, written consent to donate tissue that would otherwise be discarded post-cardiac surgery.
- Subjects undergoing elective coronary artery bypass surgery and or aortic valve replacement surgery.
Who cannot join
- Subjects in atrial fibrillation or having a history of atrial fibrillation in the 2 weeks period prior to surgery.
- Use of intravenous anti-arrhythmic therapy.
- Subjects unable to give informed consent.
- Subjects with a fasting glucose of greater than 110 mg/dl that have not been defined as diabetic.
Trial locations and contacts
1 site in 1 country.
About this study
The concept of diabetic cardiomyopathy was initially defined more than 30 years ago, as cardiac failure in diabetic subjects in the absence of underlying coronary artery disease. Diabetes is also thought to contribute to earlier stage cardiac systolic dysfunction and/or to isolated diastolic dysfunction, in excess of underlying coronary artery disease and hypertension. More globally, it is recognized that subjects with type 2 diabetes have more extensive cardiovascular disease and a worse outcome for a similar level of disease than non-diabetic subjects. Despite this epidemiological evidence, the biological programming underpinning the myriad presentations of the diabetic heart' are poorly characterized in humans.
Proteomics has emerged as an unbiased technology that enables the measurement of large numbers of steady-state protein levels. The potential to identify a diabetes associated proteomic signature in the heart would be a novel approach to identify putative biological programs altered by the diabetic state.
A portion of the right atrial appendage is removed to insert the cardiac bypass machine cannula in certain cardiothoracic procedures. This tissue is usually discarded, however, we propose that it could be employed to examine whether otherwise similar subjects with and without diabetes have distinct atrial proteomic signatures. This pilot study may provide insight into potential biological pathways that orchestrate the worse cardiac prognosis in type 2 diabetic versus non diabetic control subjects.
Read the detailed description
The concept of diabetic cardiomyopathy was initially defined more than 30 years ago, as cardiac failure in diabetic subjects in the absence of underlying coronary artery disease. Diabetes is also thought to contribute to earlier stage cardiac systolic dysfunction and/or to isolated diastolic dysfunction, in excess of underlying coronary artery disease and hypertension. More globally, it is recognized that subjects with type 2 diabetes have more extensive cardiovascular disease and a worse outcome for a similar level of disease than non-diabetic subjects. Despite this epidemiological evidence, the biological programming underpinning the myriad presentations of the diabetic heart' are poorly characterized in humans.
Proteomics has emerged as an unbiased technology that enables the measurement of large numbers of steady-state protein levels. The potential to identify a diabetes associated proteomic signature in the heart would be a novel approach to identify putative biological programs altered by the diabetic state.
A portion of the right atrial appendage is removed to insert the cardiac bypass machine cannula in certain cardiothoracic procedures. This tissue is usually discarded, however, we propose that it could be employed to examine whether otherwise similar subjects with and without diabetes have distinct atrial proteomic signatures. This pilot study may provide insight into potential biological pathways that orchestrate the worse cardiac prognosis in type 2 diabetic versus non diabetic control subjects.
- Conditions
- Diabetes, Cardiomyopathy
- Keywords
- Diabetes and Cardiac Proteomics, Atrial Appendage and Proteomics, Diabetic Cardiomyopathy, Tissue Sample
- Medical subject headings
- Diabetes Mellitus, Cardiomyopathies, Diabetic Cardiomyopathies
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted11 Jan 2008 (estimated)
- Study start14 Dec 2007
- Study completion23 Sep 2011
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for DiabetesStudies of the same condition, open and under way.
- More trials run by National Heart, Lung, and Blood Institute (NHLBI)The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Time perspective
- Prospective
- Enrolment
- 600 participants (estimated)
Sponsor and investigators
- Sponsor type
- US National Institutes of Health
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00591903
- Sponsor's protocol ID
- 999908037
- Other IDs
- 08-H-N037
- Status last verified
- 23 Sep 2011
- First submitted
- 21 Dec 2007
- Last updated
- 2 Jul 2017
- Results posted
- No
Publications
King H, Aubert RE, Herman WH. Global burden of diabetes, 1995-2025: prevalence, numerical estimates, and projections. Diabetes Care. 1998 Sep;21(9):1414-31. doi: 10.2337/diacare.21.9.1414.
PubMed 9727886Garcia MJ, McNamara PM, Gordon T, Kannel WB. Morbidity and mortality in diabetics in the Framingham population. Sixteen year follow-up study. Diabetes. 1974 Feb;23(2):105-11. doi: 10.2337/diab.23.2.105. No abstract available.
PubMed 4359625Rubler S, Dlugash J, Yuceoglu YZ, Kumral T, Branwood AW, Grishman A. New type of cardiomyopathy associated with diabetic glomerulosclerosis. Am J Cardiol. 1972 Nov 8;30(6):595-602. doi: 10.1016/0002-9149(72)90595-4. No abstract available.
PubMed 4263660
Study at a glance
From the registry record, last updated by the sponsor on 2 Jul 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Pilot Study to Assess the Proteome in Human Atrial Tissue
- ClinicalTrials.gov ID
- NCT00591903
- Acronym / sponsor ID
- 999908037
- Conditions
- Diabetes, Cardiomyopathy
- Keywords
- Diabetes and Cardiac Proteomics, Atrial Appendage and Proteomics, Diabetic Cardiomyopathy, Tissue Sample
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 600 participants (estimated)
- Lead sponsor
- National Heart, Lung, and Blood Institute (NHLBI)US National Institutes of Health
- Study start
- 14 Dec 2007
- Study completion
- 23 Sep 2011
- First posted
- 11 Jan 2008 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The concept of diabetic cardiomyopathy was initially defined more than 30 years ago, as cardiac failure in diabetic subjects in the absence of underlying coronary artery disease. Diabetes is also thought to contribute to earlier stage cardiac systolic dysfunction and/or to isolated diastolic dysfunction, in excess of underlying coronary artery disease and hypertension. More globally, it is recognized that subjects with type 2 diabetes have more extensive cardiovascular disease and a worse outcome for a similar level of disease than non-diabetic subjects. Despite this epidemiological evidence, the biological programming underpinning the myriad presentations of the diabetic heart' are poorly characterized in humans.
Proteomics has emerged as an unbiased technology that enables the measurement of large numbers of steady-state protein levels. The potential to identify a diabetes associated proteomic signature in the heart would be a novel approach to identify putative biological programs altered by the diabetic state.
A portion of the right atrial appendage is removed to insert the cardiac bypass machine cannula in certain cardiothoracic procedures. This tissue is usually discarded, however, we propose that it could be employed to examine whether otherwise similar subjects with and without diabetes have distinct atrial proteomic signatures. This pilot study may provide insight into potential biological pathways that orchestrate the worse cardiac prognosis in type 2 diabetic versus non diabetic control subjects.
Detailed description
The concept of diabetic cardiomyopathy was initially defined more than 30 years ago, as cardiac failure in diabetic subjects in the absence of underlying coronary artery disease. Diabetes is also thought to contribute to earlier stage cardiac systolic dysfunction and/or to isolated diastolic dysfunction, in excess of underlying coronary artery disease and hypertension. More globally, it is recognized that subjects with type 2 diabetes have more extensive cardiovascular disease and a worse outcome for a similar level of disease than non-diabetic subjects. Despite this epidemiological evidence, the biological programming underpinning the myriad presentations of the diabetic heart' are poorly characterized in humans.
Proteomics has emerged as an unbiased technology that enables the measurement of large numbers of steady-state protein levels. The potential to identify a diabetes associated proteomic signature in the heart would be a novel approach to identify putative biological programs altered by the diabetic state.
A portion of the right atrial appendage is removed to insert the cardiac bypass machine cannula in certain cardiothoracic procedures. This tissue is usually discarded, however, we propose that it could be employed to examine whether otherwise similar subjects with and without diabetes have distinct atrial proteomic signatures. This pilot study may provide insight into potential biological pathways that orchestrate the worse cardiac prognosis in type 2 diabetic versus non diabetic control subjects.
Study design
- Time perspective
- Prospective
Who may qualify
- Ages
- 18 to 80 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Subjects must be 18-80 years of age.
- Subjects must provide informed, written consent to donate tissue that would otherwise be discarded post-cardiac surgery.
- Subjects undergoing elective coronary artery bypass surgery and or aortic valve replacement surgery.
Key exclusion criteria (4 listed)
- Subjects in atrial fibrillation or having a history of atrial fibrillation in the 2 weeks period prior to surgery.
- Use of intravenous anti-arrhythmic therapy.
- Subjects unable to give informed consent.
- Subjects with a fasting glucose of greater than 110 mg/dl that have not been defined as diabetic.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Jul 2017.
- Background: PubMed 9727886King H, Aubert RE, Herman WH. Global burden of diabetes, 1995-2025: prevalence, numerical estimates, and projections. Diabetes Care. 1998 Sep;21(9):1414-31. doi: 10.2337/diacare.21.9.1414.
- Background: PubMed 4359625Garcia MJ, McNamara PM, Gordon T, Kannel WB. Morbidity and mortality in diabetics in the Framingham population. Sixteen year follow-up study. Diabetes. 1974 Feb;23(2):105-11. doi: 10.2337/diab.23.2.105. No abstract available.
- Background: PubMed 4263660Rubler S, Dlugash J, Yuceoglu YZ, Kumral T, Branwood AW, Grishman A. New type of cardiomyopathy associated with diabetic glomerulosclerosis. Am J Cardiol. 1972 Nov 8;30(6):595-602. doi: 10.1016/0002-9149(72)90595-4. No abstract available.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Diabetes and Cardiomyopathy, run by National Heart, Lung, and Blood Institute (NHLBI) at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 2 Jul 2017. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00591903, which also lists 3 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Jul 2017.