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.
The primary objective for this study is to evaluate the effect of adjunctive valbenazine versus placebo on symptoms of schizophrenia in participants who have inadequate response to antipsychotic treatment.
This is an interventional, randomized, parallel group, treatment, Phase 3b/4, double blind, 2-arm study to assess the effect of dupilumab compared to standard of care therapy on preventing or slowing the rate of lung function decline in adult patients with uncontrolled moderate to severe asthma. The estimated duration is 4±1 weeks of screening and run-in period, followed by a 3-year double blinded treatment period. There will be a post-treatment follow-up (FU) period up to 12 weeks.
The purpose of the study is to assess the success of a single administration of Staccato alprazolam compared with placebo both in rapidly terminating a seizure episode within 90 seconds and with no recurrence of seizure(s) up to 2 hours after investigational medicinal product (IMP) administration.
The main objective of this study is to compare efficacy of bemarituzumab combined with oxaliplatin, leucovorin, and 5-fluorouracil (5-FU) (mFOLFOX6) to placebo plus mFOLFOX6 as assessed by overall survival (OS) in participants with FGFR2b ≥10% 2+/3+ tumor cell staining (FGFR2b ≥10% 2+/3+TC)
This observational study is designed to collect data on the use of the drug Lecigon® in daily clinical practice. The study is organised and funded by a pharmaceutical company called Britannia Pharmaceuticals Ltd (Britannia). Lecigon® is prescribed by physicians in advanced Parkinson's disease when patients suffer from uncontrollable fluctuations in mobility, so-called motor fluctuations, which cannot be adjusted well with oral treatment, i.e. medication for swallowing. In this study, data on the effect and possible side effects from everyday treatment with Lecigon® will be collected and scientifically evaluated. The study is intended to supplement the results of previous clinical studies with clinical data in routine medical care, collected from approximately 300 patients.
The purpose of this study is to complement Study CBYL719C2301 (SOLAR-1) and obtain more comprehensive data on the efficacy and safety of alpelisib (BYL719) in combination with fulvestrant compared with placebo plus fulvestrant in men or postmenopausal women with HR-positive, HER2-negative advanced breast cancer with a PIK3CA mutation who progressed or relapsed on or after treatment with an AI plus a CDK4/6 inhibitor.
This study is conducted to see if ziltivekimab reduces the risk of having cardiovascular events (for example heart attack and stroke) in people with cardiovascular disease, chronic kidney disease and inflammation. Participants will either get ziltivekimab (active medicine) or placebo (a dummy medicine which has no effect on the body). This is known as the study medicine. Which treatment participants get is decided by chance. Participants chance of getting ziltivekimab or placebo is the same. Ziltivekimab is not yet approved in any country or region in the world. It is a new medicine doctors cannot prescribe. Participants will get the study medicine in a pre filled syringe. Participants will need to use the pre filled syringe to inject the study medicine into a skinfold once-monthly. The study is expected to last for up to 4 years. Participants will have up to 20 clinic visits. Participants will have blood and urine samples taken at most of the clinic visits. Participants will have their heart examined using sound waves (echocardiography) and electrodes (electrocardiogram). Women cannot take part if pregnant, breast-feeding or planning to get pregnant during the study period.
Respiratory viruses pose a permanent threat to humans and society as demonstrated by the current Covid-19 pandemic. Novel drugs and vaccines provide a means for controlling illness. Infections and symptomatic presentation of illness may be reduced, but it remains to be determined to which extent viral shedding and transmission (e.g. by silent transmitters) can be controlled. Lack of such activity may result in continuing viral spread by assumed healthy but asymptomatic spreaders. Echinacea is an established and readily-accessible product with demonstrated in vitro antiviral activity (including coronaviruses). This study aims to estimate the potential of different Echinacea formulations (head-to-head) to reduce concentration infectivity and shedding of SARS-CoV-2 under in vivo conditions.
The safety run-in part of the study aims to evaluate the safety and tolerability of blinatumomab alternating with low-intensity chemotherapy. The phase 3 part of the study aims to compare event-free survival (EFS) and overall survival (OS) of participants receiving blinatumomab alternating with low-intensity chemotherapy to EFS and (OS) of participants receiving standard of care (SOC) chemotherapy.
The main purpose of this study is to evaluate the effect of efavaleukin alfa on induction of clinical remission in participants with moderately to severely active ulcerative colitis (UC). Participants will be randomized to receive 1 of 3 efavaleukin alfa doses or placebo during a 12-week induction period. Participants who complete the 12-week induction period will have the option to enter an exploratory long-term treatment period for up to 40 weeks (total of up to 52 weeks of treatment) if, in the opinion of the investigator, they may benefit from continued treatment. During the long-term period, participants randomized to efavaleukin alfa will remain on the same efavaleukin alfa blinded dose; participants randomized to placebo who achieved clinical response at week 12 will remain on placebo; and placebo non-responders (ie, participants randomized to placebo who did not achieve clinical response at week 12) will receive efavaleukin alfa in a blinded manner during continued treatment. All participants will complete a safety follow-up visit 6 weeks after their last dose of investigational product.