AzTrials
AzTrials

Coronary Heart DiseaseNCT04599621

Unstable Angina Pectoris in Comorbidity With Anxiety-depressive Syndrome

An observational study of Coronary Heart Disease, run by Samarkand State Medical Institute at 1 site in Uzbekistan.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

Introduction: Today it is necessary to emphasize that coronary heart disease is often associated with anxiety disorders. Research over the years has shown several and sometimes surprising links between coronary heart disease and mental illness, and has even suggested that both of these phenomena may actually cause… Read more about this study

Who is it for?
Any age
Conditions the study is for
Coronary Heart Disease
What is being tested?
Collection of blood samples to determine the level of certain cytokines (TNF-α, IL-1β, IL-4 and IL-10),Collection of blood samples to determine the level of uric acid
How many people
3 participants
Where
1 siteUzbekistan
Study dates
5 Nov 2018to 28 Dec 2027
Phase
Observational
Are there results?
Not yet: the study is under way

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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: When collecting anamnesis in patients with unstable angina pectoris, the presence of ischemic heart disease (previous MI, exertional or rest angina pectoris), the presence of risk factors for coronary artery disease and myocardial infarction (atherosclerosis of other vascular areas, hypertension, smoking, diabetes mellitus, obesity) was determined. When questioning the patient, attention was paid to the period preceding the development of myocardial infarction, as well as the factors that provoked the development of this disease (excessive physical activity, infections, psychoemotional stress), as well as information on the early manifestation of CVD in the closest relatives.

Who may be able to join

  • the presence of an established diagnosis in patients with coronary artery disease
  • unstable angina pectoris (NS). When making a diagnosis, the recommendations of ESH / ESC (2015) and RCO / WHO (2014) were used.
  • stable exertional angina (SSN) I-III FC. When making the diagnosis, the IHD classification was used, adopted at the IV Congress of Cardiologists of the Republic of Uzbekistan (2000), as well as in accordance with the recommendations of ESH / ESC (2019) and RCO / WHO (2017)

Who cannot join

  • The patient's refusal to participate in the study;
  • Pregnancy and lactation;
  • Severe and unstable condition of the patient, making it difficult to conduct a questionnaire (for ethical reasons);
  • Acute violation of cerebral circulation;
  • History of acute or chronic psychosis;
  • The presence of concomitant acute diseases or chronic diseases in the acute stage.
  • Throughout the study, all patients were assigned the right to voluntarily withdraw from the study at their own request, notifying the researcher in writing or orally.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Zarina Nasirova, PhD contact

+998902768950

zarina.nasirova.91@mail.ru

Eleonora Tashkenbayeva, PhD contact

+998902811880

Eleonora_88@mail.ru

Uzbekistan1 site, 1 recruiting
  • Zarina

    Samarkand, 140100

    Zarina Nasyrova, +998902768950, zarina.nasirova.91@mail.ru

    Recruiting

Other trials in Uzbekistan

About this study

Official title: Immunological Features of Unstable Angina Pectoris in Comorbidity With Anxiety-depressive Syndrome

Introduction:

Today it is necessary to emphasize that coronary heart disease is often associated with anxiety disorders. Research over the years has shown several and sometimes surprising links between coronary heart disease and mental illness, and has even suggested that both of these phenomena may actually cause each other. However, the exact nature of these links has not yet been clearly established.

Read more

Methods: The study included 202 patients with coronary artery disease, of whom 42 patients were with stable angina pectoris, they participated as a control group, and 160 patients with unstable angina pectoris, who made up the main group.

Among them there are 102 women and 100 men between the ages of 30 and 88. The average age was 63.75 ± 11.37 years.

All study participants had blood in the morning on fasting after 8-12 hours of fasting from the cubital vein. Determination of the level of cytokines TNF-α, IL-1β, IL-4 and IL-10 in blood serum by enzyme-linked immunosorbent assay (ELISA).

All participants in the study had blood drawn in the morning on fasting after 8-12 hours of fasting from the cubital vein. The level of uric acid was determined on the CYAN Start apparatus using a unified method.

When examining patients with unstable angina pectoris were used: hospital anxiety and depression scale [Kozlova S.N. 2013]. And also the Spielberger-Khanin scale [Psychiatry - Hoffman A.G. 2010], developed by Spielberger Ch.D. and adapted by Yu.L. Khanin. to assess cognitive functions [Psychiatry - Gofman A.G. 2010].

Read the detailed description

All study participants had blood in the morning on fasting after 8-12 hours of fasting from the cubital vein. Determination of the level of cytokines TNF-α, IL-1β, IL-4 and IL-10 (pg/ml) in blood serum by enzyme-linked immunosorbent assay (ELISA).

Sample preparation: before testing, 1 part of the plasma is diluted 30-50 times with Tris buffer, depending on the test system and the kit manufacturer's instructions.

Definition progress:

  1. preparation of microtiter strips;
  2. add the material diluted with buffer to the well of the microtiter strip and incubate for 1 hour at room temperature;
  3. washing;
  4. add immunoconjugates to the well of the microtiter strip and incubate for 1 hour at room temperature;
  5. washing;
  6. add the o-phenyldiamine / H2O2 substrate solution;
  7. after exactly 3 minutes of hydrochloric acid (1 mol / l);
  8. reading the results on an ELISA analyzer after 10-120 minutes. 2.4. Collection of blood samples to determine the level of uric acid All participants in the study had blood drawn in the morning on fasting after 8-12 hours of fasting from the cubital vein. The level of uric acid was determined on the CYAN Start apparatus using a unified method.

2.5. Method for determining anxiety-depressive syndrome. When examining patients with unstable angina pectoris were used: Hospital scale [Kozlova S.N. 2013]. And also the Spielberger-Khanin scale [Psychiatry - Hoffman A.G. 2010], developed by Spielberger Ch.D. and adapted by Yu.L. Khanin. to assess cognitive functions [Psychiatry - Gofman A.G. 2010].

Description of the hospital scale This questionnaire is intended for self-completion by the patient [Kozlova S.N. 2013]. The questionnaire consists of 14 statements, "serving" 2 subscales: the subscale "alarm" marked in red, consists of odd items - 1, 3, 5, 7, 9, 11, 13 and the subscale "depression" marked in blue consists of even items - 2, 4, 6, 8, 10, 12, 14.

Each statement corresponds to 4 answer options, reflecting gradations of the severity of the sign and coded according to the increase in the severity of the symptom from 0 (no) to 3 (maximum severity). The final scores for the two subscales are obtained by summing the numerical values of the answers. When interpreting the results, the total indicator for each subscale is taken into account, while there are 3 areas of its values:

  • 0-7 - normal (no reliably pronounced symptoms of anxiety and depression);
  • 8-10 - subclinical anxiety and / or depression;
  • 11 and above - clinically significant anxiety and / or depression. The filling of the scale was carried out by patients under standard conditions, after a short instruction for filling, within a clear time frame.

Description of the Spielberger-Hanin scale The Spielberger Anxiety Scale is an informative way to self-assess the level of anxiety at a given moment (reactive anxiety as a state) and personal anxiety (as a stable characteristic of a person). Developed by Ch.D.Spielberger and adapted by Yu.L. Khanin [Psychiatry - Gofman A.G. 2010].

This scale consists of two subscales: judgments from 1 to 20 determine the presence of situational anxiety, judgments from 21 to 40 determine the presence of personal anxiety.

When analyzing the results of self-assessment, it should be borne in mind that the overall final indicator for each of the subscales can range from 20 to 80 points. Moreover, the higher the final indicator, the higher the level of anxiety (situational or personal).

When interpreting indicators, you can use the following rough estimates of anxiety:

  • up to 40 points - low,
  • 41 - 54 points - moderate;
  • 55 and more - high. 2.6. Treatment All patients with unstable angina pectoris offer conventional therapy, which includes intravenous infusion of nitrates for 12-24 hours, followed by prolonged nitrates, beta-blockers, ACE inhibitors or sartans, antiplatelet agents, anticoagulants, clopidogrel, statins. Patients have elevated levels of uric acid according to the traditional immedia Febuxostat (not a purine blocker of xanthine oxide, manufactured by Berlin Chemie, Germany) at a dose of 0.04-0.08 g / day per day. Patients who had anxiety-depressive syndrome Divase syndrome (antibodies to the brain-specific protein S-100, manufacturer MATERIA MEDICA HOLDING, LLC (Russia)) in a fixed dose of 0.6 mg / day, which has a neurotropic and antioxidant effect.
Being tested
Collection of blood samples to determine the level of certain cytokines (TNF-α, IL-1β, IL-4 and IL-10),Collection of blood samples to determine the level of uric acid
Keywords
unstable angina pectoris, uric acid, cytokine imbalance
Medical subject headings
Coronary Disease, Angina, Unstable

What participants receive

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

  • Collection of blood samples to determine the level of certain cytokines (TNF-α, IL-1β, IL-4 and IL-10),Collection of blood samples to determine the level of uric acidDiagnostic test

    Collection of blood samples to determine the level of certain cytokines (TNF-α, IL-1β, IL-4 and IL-10) All study participants had blood in the morning on fasting after 8-12 hours of fasting from the cubital vein. Determination of the level of cytokines TNF-α, IL-1β, IL-4 and IL-10 in blood serum by enzyme-linked immunosorbent assay (ELISA). All participants in the study had blood drawn in the morning on fasting after 8-12 hours of fasting from the cubital vein. The level of uric acid was determined on the CYAN Start apparatus using a unified method.

Study groups in NCT04599621
Study groupRoleWhat they receive
patients with unstable anginaThis group included patients with frequent anginal attacks, with a burdened history and comorbid conditions.
Receives: Diagnostic Test: Collection of blood samples to determine the level of certain cytokines (TNF-α, IL-1β, IL-4 and IL-10),Collection of blood samples to determine the level of uric acid

What is being measured

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

  1. cytokine research

    Determination of the level of cytokines TNF-α, IL-1β, IL-4 and IL-10 in blood serum was performed by enzyme-linked immunosorbent assay (ELISA). The principle of operation of the test system for the determination of cytokines is based on the "sandwich" method of solid-phase immune enzyme immunoassay using horseradish peroxidase as an indicator enzyme. Stop the reaction by adding 50 μl of 1N sulfuric acid solution. The quantitative assessment of the results is carried out by the method of constructing a calibration curve or using a commercial computer program "Microplate manager", reflecting the dependence of optical density on concentration for a standard antigen and allowing comparison of the test samples with it. The sensitivity of the method is 5-30 pg / ml.

    Measured: 2019-2027

  2. hospital scale

    The questionnaire consists of 14 questions, 2 subscales. 0-7 - normal, 8-10 - subclinical anxiety or depression; 11 and above - clinically significant anxiety or depression.

    Measured: 2019-2027

  3. Spielberger-Khanin Anxiety Scale

    The scale consists of 2 subscales: judgments from 1 to 20 determine situational anxiety, judgments from 21 to 40 determine the presence of personal anxiety. The results for each subscale can be from 20 to 80 points. up to 40 points - low, 41 - 54 points - moderate; 55 and more - high.

    Measured: 2019-2027

Secondary outcomes (1)
  1. etermination of uric acid level

    Method: Enzymatic Uricase Colorimetric Method Analyzer: Cobas 6000 Measurement units: μmol / l Material for research: venous blood serum

    Training:

    Take on an empty stomach (after sleep and 8-12 hours of fasting). It is permissible to drink only pure non-carbonated water (up to 200 ml) (with the exception of glucose analysis).

    Do not eat spicy, fatty, fried foods for 1-2 days before analysis. Eliminate physical and emotional stress 1 day before the analysis. Do not smoke for at least 1 hour before analysis. It is not recommended to take it after radiography, physiotherapy procedures and instrumental examinations.

    For several days before the study, you must adhere to a low-purine diet, avoid drinking alcohol or warn about the use when taking a test.

    Measured: 2019-2027

Timeline

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

  1. First posted23 Oct 2020
  2. Study start5 Nov 2018
  3. Primary completion25 Dec 2025 (estimated)
  4. Study completion28 Dec 2027 (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
Other
Time perspective
Prospective
Enrolment
3 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04599621
Sponsor's protocol ID
DGU20191075
Status last verified
Apr 2020
First submitted
6 Oct 2020
Last updated
23 Oct 2020
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
Undecided: For the first time in the region of Uzbekistan, the mechanisms of interconnection of biopsychosocial risk factors affecting the progression of coronary heart disease, taking into account the level of uric acid in the blood and cytokine imbalance, will be studied. Indicators of cytokine status will be identified that affect the progression of coronary heart disease depending on the level of uric acid in the blood

Questions about this trial

What is this clinical trial studying?

An observational study of Coronary Heart Disease, run by Samarkand State Medical Institute at 1 site in Uzbekistan.

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 7 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: looking for participants now, as of the sponsor's last update on 23 Oct 2020. 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 Uzbekistan. 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?

This study is still under way. Results are not available in the source record yet.

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

Contact Zarina Nasirova, PhD (+998902768950, zarina.nasirova.91@mail.ru), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

cytokine research (time frame: 2019-2027). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 23 Oct 2020.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in