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.
Polycythemia Vera (PV) is a disease of bone marrow stem cells that manifests in a drastic increase of red blood cells and frequently also of white blood cells. The "thickening" of the blood in relation with a modified function of the cells has several consequences like increased blood pressure, pruritus of the skin, fatigue, disturbed blood circulation in the brain as well as fingers and toes and an increased risk of arterial and venous thrombosis (thrombosis is the formation of a blood clot in a vessel); like stroke, cardiac infarction, deep vein thrombosis in the legs. In case of a strong increase of platelets there is an additional risk of bleedings. As the disease progresses the size of spleen and liver increased in most cases and the bone marrow shows signs of fibrosis. In some cases of PV a progression at a later time point to a leukemia (increased formation of white blood cells) can occur. The aim of this study is to show that the study drug AOP2014 (pegylated proline interferon alpha-2b) has the long term efficacy and safety in controlling the disease. A comparison arm is receiving best available therapy as selected by the investigator. Response to the treatment is measured by several blood parameters as well as size of the spleen. Interferon-alpha has been shown to be effective in controlling the blood parameters by immunologically influencing the blood building cells. This can lead to a suppression of the disease-causing stem cells and help healthy stem cells to proliferate. Through this mechanism it is possible that Interferon-alpha can avoid long-term damaging effects of the disease.
The study purpose is: - To assess the incidence of FVIII inhibitory antibodies during 6 months of twice weekly prophylactic treatment with BAX 855 or 50 exposure days (EDs), whichever occurs last. - To compare pharmacokinetic (PK) parameters to ADVATE. - To assess hemostatic efficacy in prophylaxis and the treatment of bleeding episodes. - To evaluate safety and immunogenicity.
The purpose of this study is to evaluate the effects of Ceftaroline Fosamil versus Vancomycin plus Aztreonam in treatment of patients with complicated bacterial skin and soft tissue infections.
Primary Objective: To assess the effect of teriflunomide in comparison to placebo on disease activity measured by time to first clinical relapse after randomization in children and adolescents 10 to 17 years of age with relapsing forms of multiple sclerosis (MS). Secondary Objective: - To assess the effect of teriflunomide in comparison to placebo on disease activity/progression measured by brain magnetic resonance imaging (MRI) and on cognitive function. - To evaluate the safety and tolerability of teriflunomide in comparison to placebo. - To evaluate the pharmacokinetics (PK) of teriflunomide.
To compare the efficacy of inebilizumab (MEDI-551) versus placebo in reducing the risk of an neuromyelitis optica/neuromyelitis optica- spectrum disorders (NMO/NMOSD) attack in participants with NMO/NMOSD.
The purpose of this study is to assess the safety and efficacy of BAY1841788 (ODM-201) in patients with non-metastatic castration-resistant prostate cancer.
The purpose of this study is to determine if the addition of daratumumab to velcade (bortezomib) melphalan-prednisone (VMP) will prolong progression-free survival (PFS) compared with VMP alone in participants with previously untreated multiple myeloma who are ineligible for high dose chemotherapy and autologous stem cell transplant (ASCT).
To follow-up on the safety of subjects who were previously treated in a double-blind trial of brexpiprazole.
The study will obtain data to show insight into clinical outcomes of patients switching from Darbepoetin Alfa to a epoetin alfa biosimilar.
The purpose of the study is to evaluate the safety, pharmacokinetics, pharmacodynamics, and efficacy of daily subcutaneous administration of 5 μg/kg tbo-filgrastim in infants, children and adolescents with solid tumors without bone marrow involvement.