There are about 2700 clinical studies being (or have been) conducted in Bulgaria. 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.
A prospective, multicenter single-arm, open label study to evaluate the safety and effectiveness of the Neuroguard IEP System for the treatment of carotid artery stenosis in subjects at elevated risk for adverse events following carotid endarterectomy (CEA).
The purpose of this study is to evaluate the clinical efficacy, safety and pharmacokinetics (PK) of 2 fixed doses of tavapadon and placebo in participants with early PD.
Phase I, first-in-human, open-label, multicenter, dose-escalation and dose expansion study with the aim of exploring safety, tolerability and preliminary antitumor activity of NMS-03305293 (a PARP inhibitor) as single agent in adult patients with selected advanced/metastatic, relapsed/refractory solid tumors who have exhausted standard treatment options or for whom standard therapy is considered unsuitable.
The purpose of this extension study is to evaluate maintenance of HiSCR response in either continuous or interrupted therapy (using a randomized withdrawal period) of two dose regimens and to assess long-term efficacy, safety and tolerability of secukinumab in subjects with moderate to severe hidradenitis suppurativa completing either of the 2 Phase III studies. This is an expanded access trial for the core trials CAIN457M2301 (NCT03713619) and CAIN457M2302 (NCT03713619).
The purpose of this study is to evaluate whether the addition of selexipag to standard of care treatment delays disease progression in children with Pulmonary Arterial Hypertension (PAH) in comparison to placebo.
This protocol includes 2 standalone studies with randomization, data collection, analysis and reporting conducted independently. The main objectives of this protocol are: - To evaluate the efficacy of upadacitinib compared with placebo on reduction of signs and symptoms in adults with active axial spondyloarthritis (axSpA) including biologic disease-modifying antirheumatic drug inadequate responders (bDMARD-IR) ankylosing spondylitis (AS) (Study 1) and non-radiographic axial spondyloarthritis (nr-axSpA) (Study 2). - To assess the safety and tolerability of upadacitinib in adults with active axSpA including bDMARD-IR AS (Study 1) and nr-axSpA (Study 2). - To evaluate the safety and tolerability of upadacitinib in extended treatment in adult participants with active axSpA including bDMARD-IR AS who have completed the Double-Blind Period (Study 1) and nr-axSpA who have completed the Double-Blind Period (Study 2). - To evaluate the maintenance of disease control after withdrawal of upadacitinib.
This open-label, randomized study for evaluating the efficacy and safety of single agent belantamab mafodotin when compared to pom/dex in participants with RRMM. Participants will be randomized in a 2:1 ratio to receive either single agent belantamab mafodotin or pom/dex. Belantamab mafodotin will be administered on Day 1 (D1) at every 3 weeks (Q3W) schedule. Pomalidomide will be administered daily on Days 1 to 21 of each 28-day cycle, with dexamethasone administered once weekly (Days 1, 8, 15, and 22). Participants in both arms will be treated until disease progression, death, unacceptable toxicity, withdrawal of consent, and lost to follow-up or end of study, whichever comes first.
The main aim of this study is to check for long-term side effects from ADYNOVI/ADYNOVATE prophylaxis in participants with haemophilia A when used under standard clinical practice in the real-world clinical setting.
This is a randomized, double-blind, placebo-controlled, parallel-group, international, multicenter, Phase 3 study to evaluate the efficacy and safety of repeat dosing of benralizumab 30 mg administered subcutaneously (SC) versus placebo in patients with severe nasal polyposis.
Primary Objectives: - Study is designed with two primary endpoints that will be analyzed on randomized participants at the time of the cut-off date for each given analysis (progression free survival [PFS] and overall survival [OS]) - Study success is defined either on PFS or OS - The primary objective is to determine whether tusamitamab ravtansine improves the progression free survival (PFS) when compared to docetaxel in participants with metastatic non-squamous non-small-cell lung cancer (NSCLC) expressing CEACAM5 greater than or equal to 2+ in intensity in at least 50% of the tumor cell population and previously treated with standard-of-care platinum-based chemotherapy and an immune checkpoint inhibitor (ICI) - The primary objective is to determine whether tusamitamab ravtansine improves the overall survival (OS) when compared with docetaxel in participants with metastatic non-squamous NSCLC expressing CEACAM5 greater than or equal to 2+ in intensity in at least 50% of the tumor cell population and previously treated with standard-of-care platinum-based chemotherapy and an immune checkpoint inhibitor. Secondary Objectives: - To compare the objective response rate (ORR) of tusamitamab ravtansine with docetaxel - To compare the health-related quality of life (HRQOL) of tusamitamab ravtansine with docetaxel - To evaluate the safety of tusamitamab ravtansine compared to docetaxel - To assess the duration of response (DOR) of tusamitamab ravtansine as compared with docetaxel