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Diabetic CardiomyopathiesNCT04534894

Single-center Clinical Study of Early Diagnosis of Diabetic Cardiomyopathy With FLIM

An observational study of Diabetic Cardiomyopathies, run by Xinhua Hospital, Shanghai Jiao Tong University School of Medicine.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Diabetic Cardiomyopathy (DCM) is disease of myocardial structure and function which is independent of hypertension, coronary heart disease, heart valve abnormalities, and other types of heart disease. DCM affects approximately 12% of diabetics and also appeared in some patients with well-controlled blood glucose. Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Diabetic Cardiomyopathies
What is being tested?
fluorescence lifetime imaging microscopy
How many people
243 participants
Where
No sites listed yet
Study dates
1 Oct 2020to 31 Dec 2022
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

Study population: type 2 diabetes patients, divided into two groups, based on the diastolic funciton

Who may be able to join

  • Male or female, aged 18-80 years old;
  • Echocardiography showed that the cardiac structure was normal and the left ventricular ejection fraction was more than 50%;
  • patients with type 2 diabetes mellitus;
  • Body mass index (BMI) was 20-25 kg / m2 in male and 19-24 kg / m2 in female;
  • No other drugs except hypoglycemic drugs were taken in one month;
  • Sign informed consent form before entering this study.

Who cannot join

  • Patients with type 1 diabetes mellitus;
  • Patients with diabetic ketoacidosis in the past;
  • Patients with coronary heart disease or with myocardial ischemia indicated by ECG;
  • EGFR < 60ml / min / 1.73m2 in recent one month;
  • Chronic liver disease, or the levels of alanine aminotransferase and glutamic oxaloacetic transaminase were more than 3 times of the upper limit of the normal before enrollment;
  • Abnormal thyroid function;
Show all 10Show fewer
  • Abnormal tumor index;
  • Dyslipidemia;
  • Pregnant and lactating women;
  • Allergy to contrast media.

Trial locations and contacts

No sites are listed yet.

About this study

Official title: Single-center Clinical Study of Early Diagnosis of Diabetic Cardiomyopathy With Fluorescence Lifetime Imaging Microscopy (FLIM)

Diabetic Cardiomyopathy (DCM) is disease of myocardial structure and function which is independent of hypertension, coronary heart disease, heart valve abnormalities, and other types of heart disease. DCM affects approximately 12% of diabetics and also appeared in some patients with well-controlled blood glucose. There is no specific and effective diagnostic method of DCM currently. Since it is well known that the dysfunction of myocardial metabolism caused by hyperglycemia and insulin resistance induces DCM, the method of evaluation of the metabolism will assist the diagnosis of DCM.

Nicotinamide adenine dinucleotide (phosphate) (NAD(P)H) is one of important coenzymes involved in biological metabolism. Fluorescence lifetime microscopy (FLIM) can detect the metabolic status based on the fluorescence characteristics of NAD(P)H. Previous studies have reported that NAD(P)H fluorescence lifetime can be used to assess the metabolic status of living cardiomyocytes cultured in vitro, and metabolism changes related to myocardial infarction and heart failure in rats. the investigators detected the metabolic status by label-free FLIM on the myocardial tissues and blood plasma in a rat model of type 2 diabetic cardiomyopathy, and found FLIM could provide valuable information about the myocardial metabolism by detecting the NAD(P)H fluorescence lifetime of blood plasma.

Read more

Recently, The investigators have explored the method of the FLIM in clinical study. The investigators used FLIM to compare the NAD(P)H fluorescence lifetime of blood plasma in healthy participants, type 2 diabetic patients with normal diastolic function and with diastolic dysfunction. The results showed that the NAD(P)H fluorescence life parameter of a2 was lower in type 2 diabetic patients with diastolic dysfunction (30.5±2.7%) than in healthy participants (41.5±4.8%) and type 2 diabetic patients with normal diastolic function (37.8±3.7%). Therefore, The investigators propose FLIM can provide valuable information about the myocardial metabolism, and it can be used as a non-invasive, label-free, and rapid screening method of diagnosis of DCM.

In this study, the investigators will recruit 243 patients with type 2 diabetes and divide them into two groups: normal diastolic function group (DM Group) and diastolic dysfunction group (DCM Group), based on the symptoms, laboratory examination and echocardiographic results. Then FLIM will be applied to detect the NAD(P)H fluorescence characteristics of venous blood of all patients. After that, the correlation between the parameters of diastolic function (E peak, E/E' ratio, left atrial volume, NT-proBNP) and the parameters of metabolism status (NAD(P)H fluorescence life parameter of a2 and the ratio of bound state/free state NAD(P)H) will be analyzed. This study will verify FLIM is helpful to diagnose DCM.

Being tested
fluorescence lifetime imaging microscopy
Keywords
diabetic cardiomyopathy, fluorescence lifetime imaging microscopy, metabolism
Medical subject headings
Diabetic Cardiomyopathies

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • fluorescence lifetime imaging microscopyDiagnostic test

    collect 2mL of venous blood and use fluorescence lifetime imaging microscopy to exam NADH fluorescence characteristics of it

Study groups in NCT04534894
Study groupRoleWhat they receive
DM group and DCM groupDM group: type 2 diabetes with normal diastolic function DCM group: type 2 diabetes with diastolic dysfunction
Receives: Diagnostic Test: fluorescence lifetime imaging microscopy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. fluorescence characteristics of NAD(P)H in venous blood by FLIM can assist early diagnosis of diabetic cardiomyopathy

    (NAD(P)H fluorescence life parameter of a2 (%) in venous blood is lower in DCM patients than DM patients.

    Measured: 12 month

  2. fluorescence characteristics of NAD(P)H in venous blood by FLIM can assist early diagnosis of diabetic cardiomyopathy

    the ratio of bound state/free state NAD(P)H) (%) is lower in DCM patients than DM patients.

    Measured: 12 month

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Sep 2020
  2. Study start1 Oct 2020 (estimated)
  3. Primary completion30 Sep 2022 (estimated)
  4. Study completion31 Dec 2022 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
243 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04534894
Sponsor's protocol ID
XH-20-015
Status last verified
Aug 2020
First submitted
19 Aug 2020
Last updated
1 Sep 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Rubler 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
  • Singh RM, Waqar T, Howarth FC, Adeghate E, Bidasee K, Singh J. Hyperglycemia-induced cardiac contractile dysfunction in the diabetic heart. Heart Fail Rev. 2018 Jan;23(1):37-54. doi: 10.1007/s10741-017-9663-y.

    PubMed 29192360
  • De Jong KA, Lopaschuk GD. Complex Energy Metabolic Changes in Heart Failure With Preserved Ejection Fraction and Heart Failure With Reduced Ejection Fraction. Can J Cardiol. 2017 Jul;33(7):860-871. doi: 10.1016/j.cjca.2017.03.009. Epub 2017 Mar 19.

    PubMed 28579160
  • Cook GA, Lavrentyev EN, Pham K, Park EA. Streptozotocin diabetes increases mRNA expression of ketogenic enzymes in the rat heart. Biochim Biophys Acta Gen Subj. 2017 Feb;1861(2):307-312. doi: 10.1016/j.bbagen.2016.11.012. Epub 2016 Nov 11.

    PubMed 27845231
  • Suhling K, Siegel J, Lanigan PM, Leveque-Fort S, Webb SE, Phillips D, Davis DM, French PM. Time-resolved fluorescence anisotropy imaging applied to live cells. Opt Lett. 2004 Mar 15;29(6):584-6. doi: 10.1364/ol.29.000584.

    PubMed 15035478
  • Wang M, Tang F, Pan X, Yao L, Wang X, Jing Y, Ma J, Wang G, Mi L. Rapid diagnosis and intraoperative margin assessment of human lung cancer with fluorescence lifetime imaging microscopy. BBA Clin. 2017 Apr 27;8:7-13. doi: 10.1016/j.bbacli.2017.04.002. eCollection 2017 Dec.

    PubMed 28567338
  • Luo T, Lu Y, Liu S, Lin D, Qu J. Phasor-FLIM as a Screening Tool for the Differential Diagnosis of Actinic Keratosis, Bowen's Disease, and Basal Cell Carcinoma. Anal Chem. 2017 Aug 1;89(15):8104-8111. doi: 10.1021/acs.analchem.7b01681. Epub 2017 Jul 18.

    PubMed 28661125
  • Jing Y, Wang Y, Wang X, Song C, Ma J, Xie Y, Fei Y, Zhang Q, Mi L. Label-free imaging and spectroscopy for early detection of cervical cancer. J Biophotonics. 2018 May;11(5):e201700245. doi: 10.1002/jbio.201700245. Epub 2018 Jan 30.

    PubMed 29205885
  • Farwell DG, Meier JD, Park J, Sun Y, Coffman H, Poirier B, Phipps J, Tinling S, Enepekides DJ, Marcu L. Time-resolved fluorescence spectroscopy as a diagnostic technique of oral carcinoma: Validation in the hamster buccal pouch model. Arch Otolaryngol Head Neck Surg. 2010 Feb;136(2):126-33. doi: 10.1001/archoto.2009.216.

    PubMed 20157056
  • Lagarto J, Dyer BT, Talbot C, Sikkel MB, Peters NS, French PM, Lyon AR, Dunsby C. Application of time-resolved autofluorescence to label-free in vivo optical mapping of changes in tissue matrix and metabolism associated with myocardial infarction and heart failure. Biomed Opt Express. 2015 Jan 7;6(2):324-46. doi: 10.1364/BOE.6.000324. eCollection 2015 Feb 1.

    PubMed 25780727

Questions about this trial

What is this clinical trial studying?

An observational study of Diabetic Cardiomyopathies, run by Xinhua Hospital, Shanghai Jiao Tong University School of Medicine.

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 6 inclusion and 10 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: status not confirmed, as of the sponsor's last update on 1 Sep 2020. Status can change between updates, so confirm with the study contact before making plans.

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?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact kai guo, doctor (+86-21-25076143, guokai@xinhuamed.com.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

fluorescence characteristics of NAD(P)H in venous blood by FLIM can assist early diagnosis of diabetic cardiomyopathy (time frame: 12 month). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04534894, which also lists 10 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 1 Sep 2020.

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