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 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 purpose of the study is to evaluate the long-term safety and tolerability of Staccato alprazolam.
The Phase 3 LIMT-2 study will evaluate the safety and efficacy of Peginterferon Lambda treatment for 48 weeks with 24 weeks follow-up compared to no treatment for 12 weeks in patients chronically infected with HDV. The primary analysis will compare the proportion of patients with HDV RNA < LLOQ at the 24-week post-treatment visit in the Peginterferon Lambda treatment group vs the proportion of patients with HDV RNA < LLOQ at the Week 12 visit in the no-treatment comparator group.
Crohn's disease (CD) is a long-lasting condition causing inflammation that can affect any part of the gut. CD may cause tiredness, loose stools with or without bleeding, abdominal pain, weight loss, and fever. This study evaluates how safe and effective ABBV-154 is in participants treated for moderately to severely active CD. Adverse events and change in the disease activity will be assessed. ABBV-154 is an investigational drug being evaluated for the treatment of CD. In the induction period, there is a 1 in 5 chance that participants will be assigned to placebo. Depending on the dose received in the induction period, there is a 1 in 2 or 1 in 3 chance that participants will be assigned to placebo in the maintenance period. Around 265 participants 18-75 years of age with moderately to severely active CD will be enrolled in the study at approximately 200 sites worldwide. The study is compromised of a 12-week double-blind, placebo-controlled induction period, followed by either a 12-week double-blind re-induction period for non-responders or a 40-week double-blind placebo-controlled maintenance period for responders. In the maintenance period, responders will be randomized to receive subcutaneous placebo or ABBV-154 in 2 different doses every other week. Participants in the placebo group who are initial responders will receive ABBV-154 in the maintenance period. There may be higher treatment burden for participants in this trial compared to their standard of care due to study procedures. Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.
Randomized, placebo-controlled, multi-center, double-blind, proof of concept phase IIa trial and dose evaluation trial of felzartamab in IgAN
This is a multicenter, open-label, fixed dose, 26 week study of patients with MDD. Eligible patients from the lead-in studies will enter the Open-label Safety Study at the Screening/Baseline Visit (Visit 1/Day 1), at which point patient eligibility will be assessed and informed consent obtained.
This is a multicenter, randomized, double-blind, placebo-controlled, parallel-group, fixed-dose study in patients with a primary diagnosis of MDD according to criteria of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) who have an inadequate response to ongoing ADT.
The purpose of this study is to evaluate the effect of Sodium Zirconium Cyclosilicate (SZC), as adjunct to ACEi/ARB therapy (lisinopril or valsartan), on slowing CKD progression (assessed as the reduction in participant's glomerular filtration rate [eGFR] decline over time) in participants with hyperkalaemia or at high risk of hyperkalaemia.
A study to assess whether different doses of KVD824 are effective in preventing attacks of Hereditary Angiodedema Type I or Type II.
This study will be conducted in patients with erosive esophagitis due to gastro-esophageal reflux disease (GERD) Los Angeles (LA) grades C or D, and in patients with at least partial symptom response but still endoscopically unhealed (LA grades A or B) after 8 weeks history of standard treatment healing course with PPI, designed to support dose selection for Phase 3 and to investigate safety, tolerability, and healing rates after 4 weeks treatment of X842 or Lansoprazole, and symptom pattern during subsequent 4 weeks treatment with Lansoprazole.