There are about 6461 clinical studies being (or have been) conducted in Russian Federation. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
The study will include patients with acute coronary syndrome without ST segment elevation and multivessel CA lesion, who are subject to surgical treatment according to KG data (Syntax Score 23 - 32 points with significant damage to the anterior descending artery and/or trunk of the left coronary artery). The patient should be suitable for both CABG and PCI (confirmed by an X-ray surgeon and a cardiac surgeon). An X-ray surgeon and a cardiac surgeon, within the framework of planning the volume of revascularization, strives for the fullest feasible volume. Complete myocardial revascularization (that is, the desire for the absence of hemodynamically significant coronary arteries after revascularization, with a diameter of > 2.5 mm, that is, residual coronary artery stenosis of no more than 60%). Thus, patients will be randomized into groups in a ratio of 1:1. Each group will need to include 230 patients (a total of 460). In the main group, revascularization will be performed by PCI, in the control group by CABG.
Esophageal and esophagogastric junction cancer is still one of the main health care issue and esophagectomy with lymph node dissection is the only chance to be cure. However, esophagectomy for esophageal cancer is a complex procedure which carries high risk of morbidity rate of 24% and a mortality rate of 2% to 5.6%, respectively There is a need to study the differences of 90-day postoperative morbidity and mortality in different clinics and centers of the Russian Federation.
Gastric cancer is still one of the main health care issue and gastrectomy with lymph node dissection is the only chance to be cure. Trials show that the postoperative course differs significantly between eastern and western centers, as well as between clinics within Russian Federation. Postoperative 30-day postoperative mortality after gastric cancer surgery ranges from 1% to 5%, and postoperative complication rates range from 10% to 40%. To improve the quality of further studies and recommendations for standardization of surgical treatment of gastric cancer and its complications, there is a need to study the differences in 90-day postoperative morbidity and mortality in different clinics and centers of the Russian Federation.
Dental pain, a common issue in stomatology, requires a multifaceted treatment approach. This study explores the efficacy of combining Ibuprofen with curcumin and liquorice root supplements for managing postoperative dental pain. Curcumin, known for its antioxidant and anti-inflammatory properties, along with liquorice root, may enhance pain relief beyond conventional NSAIDs like Ibuprofen. This randomized, double-blind, placebo-controlled trial aims to evaluate the safety and effectiveness of this combination therapy in adults undergoing the removal of impacted third molars. Participants, aged 18-85, were divided into groups receiving different doses of Ibuprofen and curcumin with liquorice root, compared to a control group receiving Ibuprofen and placebo. The primary outcome is the sum of pain intensity differences over 8 hours, with secondary outcomes including total pain relief and the occurrence of any adverse events. The anticipated sample size, considering a 20% dropout rate, is 264 participants, ensuring the study is powered to detect significant differences in pain management efficacy.
This is an observational cohort study of long-living adults (participants aged 90 and above) from the Central Federal District of Russia. The study seeks to determine the genetic and cellular and molecular determinants of healthy longevity and to assess the impact of lifestyle and socioeconomic and environmental factors on healthy longevity. The study is expected to result in the development of a panel of markers of healthy longevity and/or a model of healthy aging based on the analysis of all factors under consideration.
Background. Infection is the most common complication of complications after joint arthroplasty. During the COVID-19 pandemic increased used antibacterial drugs by adults, this could change the spectrum of infectious agents and their antimicrobial resistance. The purpose of the study is to evaluate the microbial diversity of pathogens of periprosthetic infection in the pre- and post-Covid period, determining the sensitivity of the leading pathogens to antibiotics. Materials and methods. A comprehensive comparative retrospective study was carried out on 342 cases of monomicrobial and polymicrobial periprosthetic infection (PPI) of limb joints with microbiological growth of microorganisms in the pre-Covid (2018-2019) and post-Covid (2021-2022) periods.
Relevance of the research topic: At present, in the world, a kind of "plateau" in the efficiency of assisted reproductive technologies has been achieved, which ensures a birth rate of 30% per embryo transfer. At the same time, a relatively high (15-20%) and stable rate of miscarriages is preserved. Until now, no effective methods for assessing the potential of gametes and embryos, as well as human reproductive capabilities, have been offered. In these conditions, to increase the rate of births after IVF, clinicians have to increase the number of transferred embryos at a time, however, this leads to a sharp increase in complications of IVF, such as multiple pregnancy. In addition, until today, the clinical effectiveness of assessing the potential of endometrium using gene expression determination methods has not been shown. Therefore, to ensure the effectiveness and safety of infertility treatment, it is necessary to develop methods for predicting the potential of gametes and embryos, as well as human reproductive capabilities. For this purpose, the investigators assume to use Raman spectroscopy of the environment obtained from the objects of research, as well as fluorescent spectroscopy of endometrium. The objects of the research are gametes (spermatozoa) and embryos, used culture medium, endometrium. The subject of the study is the set of factors, that exists in the objects of research and their ability to determine the outcomes of infertility treatment.
The clinical trial assesses the effectiveness and safety of a genetically-determined personalized approach to prescribing bioactive substances in patients with elevated blood homocysteine levels. Hyperhomocysteinemia (HHcy) is a risk factor for cardiovascular diseases (CVD), potentially exacerbating the effects of arterial hypertension and high cholesterol levels, increasing the risks of heart disease, stroke, and venous thrombosis. The trial aims to reduce plasma homocysteine levels to normal values (<15 µmol/L) through a pilot, single-center, prospective, double-blind, placebo-controlled study. The study will involve a 6-month observation period with visits at 1, 3, and 6 months, assessing the efficacy of two composite bioactive substances not considered medicinal drugs. The primary endpoint is the reduction of homocysteine levels in patients with elevated levels, while secondary endpoints include lowering very low-density lipoprotein levels, absence of anxiety and depression (using the Spielberg Anxiety Scale), and the occurrence of major cardiovascular events. The sample size is planned for 111 patients across three groups, with a 1:1:2 distribution, considering a 40% reduction in homocysteine levels in the treated group and 5% in the control group, aiming for an 80% power and a 0.05 alpha. Inclusion criteria include adults aged 18-80 with elevated homocysteine (>15 µmol/L) and LDL cholesterol levels (≥1.4 mmol/L), without taking any substances that could influence homocysteine levels for at least one month prior. The trial will also conduct an interim analysis after enrolling 55 patients, using statistical analysis to evaluate the results.
This randomized, double-blind, placebo-controlled trial evaluates the efficacy of a zinc, selenium, and L-tyrosine supplement in preventing thyrotoxicosis among adults aged 18-85 with elevated TPOAb levels and the r25191G/A SEPP1 polymorphism. The study excludes those with thyroid disease, pregnant/breastfeeding women, and individuals allergic to the supplement. Key endpoints include changes in thyroid antibodies and hormones over a 6-month period. With an estimated sample size of 150 participants per group, accounting for a 20% dropout rate, the trial seeks to demonstrate the supplement's potential in reducing thyrotoxicosis risk through a genetically-informed approach.
Multicenter double-blind placebo-controlled randomized in parallel groups clinical trial.