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 this study is to evaluate the efficacy and safety of MK-8189 at a range of doses (8 mg, 16 mg, and 24 mg once daily) in adult participants who have an acute episode of schizophrenia according to Diagnostic and Statistical Manual of Mental Disorders 5th Edition (DSM-5) criteria. The primary hypotheses are the following: (1) MK-8189 24 mg is superior to placebo in reducing the Week 6 mean change from baseline in Positive and Negative Syndrome Scale (PANSS) total score (2) MK-8189 16 mg is superior to placebo in reducing the Week 6 mean change from baseline in PANSS total score. With Amendment 4, enrollment was changed to approximately 500 participants with removal of the MK-8189 8 mg treatment arm. Participants enrolled before Amendment 4 that have been assigned to 8 mg MK-8189 will remain on 8 mg MK-8189 per protocol.
This study is designed to evaluate the antitumor activity of patritumab deruxtecan in participants with metastatic or locally advanced NSCLC with an activating EGFR mutation (exon 19 deletion or L858R) who have received and progressed on or after at least 1 EGFR TKI and 1 platinum-based chemotherapy-containing regimen.
The purpose of this study is to determine whether oral etrasimod is a safe and effective treatment for moderately active ulcerative colitis in adult participants.
The primary objective of this study is to evaluate the effect of brensocatib at 10 mg and 25 mg compared with placebo on the rate of pulmonary exacerbations (PEs) over the 52-week treatment period.
This is a randomized, double-blind, multicenter, global Phase 3 study to assess the efficacy and safety of monalizumab and cetuximab, compared to placebo and cetuximab, in Participants with recurrent or metastatic head and neck cancer.
This clinical trial will evaluate the safety, tolerability and efficacy of GLS-1027 in the prevention of severe pneumonitis caused by SARS-CoV-2 infection
A study to evaluate the efficacy and safety of fenebrutinib on disability progression and relapse rate in adult participants with RMS. Eligible participants will be randomized 1:1 to either fenebrutinib or teriflunomide. Open-Label Extension (OLE) phase is contingent on a positive benefit-risk result in the Primary Analysis of the study.
Randomized, Placebo-controlled, Double-blind, Parallel-group, Multicenter, Phase 2a Study of the Efficacy and Safety of Oral AMT-101 in Subjects with Moderate to Severe Ulcerative Colitis.
To assess the safety and tolerability of increasing doses of PF-07104091 and to estimate the Maximum Tolerated Dose (MTD) and/or select the Recommended Phase 2 dose (RP2D) for PF-07104091 as a single agent in participants with advanced or metastatic small cell lung, breast and ovarian cancers.
This is a randomized, double blind, controlled, parallel group, multicenter study to evaluate efficacy, safety and pharmacokinetics of a higher dose of ocrelizumab per intravenous (IV) infusion every 24 weeks in participants with PPMS, in comparison to the approved 600 mg dose of ocrelizumab.