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.
This study will develop and experimentally test the efficiency of a neurofeedback training protocol vs. varenicline use for smoking cessation.
This is a Phase 2a randomized, double-blind, placebo-controlled study designed to assess the safety and tolerability of an investigational monoclonal antibody, VIS410, in subjects with uncomplicated influenza.
A study to evaluate the long-term safety and efficacy of GDC-0853 in participants with moderate to severe active Rheumatoid Arthritis (RA) who have completed 12 weeks of study treatment in Study GA29350. Eligible participants from Study GA29350 who elect to participate will receive treatment with GDC-0853 twice daily (BID) in an open-label fashion for 52 weeks, followed by a safety follow-up period of 8 weeks.
The purpose of this open-label, single-arm study was to evaluate the impact of venetoclax on the quality of life of participants including those with with relapsed/refractory (R/R) chronic lymphocytic leukemia (CLL; a type of cancer affecting the blood and the bone marrow) with or without the 17p deletion or TP53 mutation, including participants with an unknown status, as well as R/R CLL participants who had been previously treated with B-cell receptor inhibitor (BCRi) therapy. The starting dose of venetoclax was 20 mg once daily. The dose must have been gradually increased over a period of 5 weeks up to the daily dose of 400 mg. Participants may have continued receiving venetoclax for up to 2 years. After the treatment period, participants may have continued on into a 2-year follow-up period.
The primary objective is to evaluate the anti-viral effect and safety of different doses of inhaled ALX-0171 in subjects hospitalized for Respiratory Syncytial Virus Lower Respiratory Tract Infection (RSV LRTI). The secondary objective is to evaluate the clinical activity, pharmacokinetic (PK) properties, pharmacodynamic (PD) effect and immunogenicity of different doses of inhaled ALX-0171.
The purpose of this study is to assess the performance and safety of T4020 versus saline solution.
Investigation of efficacy and safety of three dose levels of subcutaneous semaglutide once daily versus placebo in subjects with non-alcoholic steatohepatitis
To evaluate the efficacy and safety of adjunctive pimavanserin compared with adjunctive placebo in the treatment of the negative symptoms of schizophrenia
To evaluate the efficacy and safety of adjunctive pimavanserin compared with adjunctive placebo in the treatment of schizophrenia
This is an 8 week study to assess the efficacy and safety profile of PF-06651600 in seropositive subjects with rheumatoid arthritis with an inadequate response to methotrexate (up to approximately 50% of subjects may also have had an inadequate response to 1 anti-TNF biologic).