Clinical trials in Bulgaria

3,115 studies list at least one site in Bulgaria. 345 are recruiting or about to start. Per ClinicalTrials.gov, last updated 2026-09-25.

Studies

Recruiting first, then most recently updated. Showing 50 of 3,115 — search for more.

• A Study to Test the Safety and Tolerability of Staccato Alprazolam in Study Participants 12 Years of Age and Older With Stereotypical Prolonged SeizuresEnrolling by invitationNCT05076617Phase 3
• JNJ-90301900 (NBTXR3) Activated by Radiotherapy With or Without Cetuximab in LA-HNSCCRecruitingNCT04892173Phase 3
• A Study Providing Treatment Access in Participants With Pulmonary Hypertension Completing a Parent Study and Having no Other OptionRecruitingNCT05179876Phase 3
• ACP-204 in Adults With Alzheimer's Disease PsychosisRecruitingNCT06159673Phase 2/3
• A Study to Learn About a Study Medicine Called Ibuzatrelvir in Adult and Adolescent Patients With COVID-19 Who Are Not Hospitalized But Are at Risk For Severe DiseaseRecruitingNCT06679140Phase 3
• This is a Study to Learn About How the Combination of the Study Medicines Sigvotatug Vedotin Plus Pembrolizumab Works in People With Non-small Cell Lung Cancer With High Levels of PD-L1.RecruitingNCT06758401Phase 3
• Study of Lumateperone as Adjunctive Therapy in the Treatment of Patients With Major Depressive DisorderRecruitingNCT05850689Phase 3
• A Study to Evaluate the Efficacy and Safety of Icotrokinra (JNJ-77242113) in Biologic-experienced and Biologic-naive Participants With Active Psoriatic ArthritisRecruitingNCT06807424Phase 3
• A Phase III Renal Outcomes and Cardiovascular Mortality Study to Investigate the Efficacy and Safety of Baxdrostat in Combination With Dapagliflozin in Participants With Chronic Kidney Disease and High Blood PressureRecruitingNCT06742723Phase 3
• Phase 3 Study of Adjunctive Treatment With Seltorexant in Adult and Elderly Participants With Major Depressive Disorder and Insomnia SymptomsRecruitingNCT06559306Phase 3
• Study of Targeted Therapies for the Treatment of Adult Participants With Moderate to Severe Crohn's DiseaseRecruitingNCT06548542Phase 2
• Study of ITI-1284 as Monotherapy Treatment in Patients With Generalized Anxiety DisorderRecruitingNCT06701903Phase 2
• Study of ITI-1284 as an Adjunctive Treatment in Patients With Generalized Anxiety DisorderRecruitingNCT06480383Phase 2
• A Study on the Safety of TAK-279 and Whether it Can Reduce Inflammation in the Bowel of Participants With Moderately to Severely Active Crohn's DiseaseRecruitingNCT06233461Phase 2
• A Global Phase III Study of Rilvegostomig or Pembrolizumab Monotherapy for First-Line Treatment of PD-L1-high Metastatic Non-small Cell Lung CancerRecruitingNCT06868277Phase 3
• A Study to Learn How PF-06821497 (Mevrometostat) Works in Men With Metastatic Castration-resistant Prostate Cancer.RecruitingNCT06629779Phase 3
• A Study to Learn About the Medicine Ponsegromab in Adults With Cancer of the Pancreas Which Has Spread and Caused Significant Body Weight Loss and FatigueRecruitingNCT06989437Phase 2/3
• A Study Evaluating Sotorasib Platinum Doublet Combination Versus Pembrolizumab Platinum Doublet Combination as a Front-Line Therapy in Participants With Stage IV or Advanced Stage IIIB/C Nonsquamous Non-Small Cell Lung Cancers (CodeBreaK 202)RecruitingNCT05920356Phase 3
• A Study of Mevrometostat for Treatment of Relapsed/Refractory SCLC, Castration Resistant Prostate Cancer, and Follicular LymphomaRecruitingNCT03460977Phase 1
• NBI-1117568-SCZ3030: Evaluation of NBI-1117568 in Inpatient Adults With SchizophreniaRecruitingNCT07105098Phase 3
• NBI-1117568-SCZ3032: Long-Term Evaluation of NBI-1117568 in Adults With SchizophreniaRecruitingNCT07114874Phase 3
• Remibrutinib Open Label Roll-over Post-trial Access ProtocolRecruitingNCT07456891Phase 3
• A Study of GSK5764227 in Participants With Relapsed Small Cell Lung Cancer (SCLC) [EMBOLD SCLC-301]RecruitingNCT07099898Phase 3
• A Study of Nipocalimab in Adults With Moderate to Severe Systemic Lupus ErythematosusRecruitingNCT07438496Phase 3
• A Study to Learn About the Study Medicine Aztreonam-Avibactam (ATM-AVI) in Infants and Newborns Admitted in Hospitals With Bacterial Infection (CHERISH)RecruitingNCT06462235Phase 2
• A Study of Lebrikizumab (LY3650150) in Participants With Chronic Rhinosinusitis and Nasal Polyps Treated With Intranasal Corticosteroids (CONTRAST-NP)RecruitingNCT06338995Phase 3
• A Surveillance Study of Susceptibility to Baloxavir Marboxil in Pediatric Participants With Influenza and Transmission of Influenza to Household ContactsRecruitingNCT06094010Phase 3
• A Study to Investigate the Efficacy and Safety of Anifrolumab Administered as Subcutaneous Injection and Added to Standard of Care Compared With Placebo Added to Standard of Care in Adult Participants With Idiopathic Inflammatory Myopathies (Polymyositis and Dermatomyositis)RecruitingNCT06455449Phase 3
• A Study to Assess the Efficacy and Safety of Efgartigimod PH20 SC in Adults With Systemic SclerosisRecruitingNCT06655155Phase 2
• A Clinical Study of Molnupiravir to Prevent Severe Illness From Coronavirus Disease 2019 (COVID-19) in People Who Are High Risk (MK-4482-023)RecruitingNCT06667700Phase 3
• Evaluation of Efficacy and Safety of Milsaperidone as Adjunctive Therapy in Patients With Major Depressive DisorderRecruitingNCT06830044Phase 3
• Mirikizumab Administered at the Same Time as Tirzepatide in Adult Participants With Moderately to Severely Active Ulcerative Colitis and Obesity or Overweight: Phase 3b StudyRecruitingNCT06937086Phase 3
• Mirikizumab and Tirzepatide Administered in Adult Participants With Moderately to Severely Active Crohn's Disease and Obesity or OverweightRecruitingNCT06937099Phase 3
• A Study to Learn More About How Safe the Study Treatment Finerenone is in Long-term Use When Taken With an ACE Inhibitor or Angiotensin Receptor Blocker Over 18 Months of Use in Children and Young Adults From 1 to 18 Years of Age With Chronic Kidney Disease and ProteinuriaRecruitingNCT05457283Phase 3
• A Phase III Study to Evaluate the Effect of Balcinrenone/Dapagliflozin in Patients With CKD Stage 3b and 4 (BalanceD-CKD)RecruitingNCT07624305Phase 3
• A Study to Assess Efficacy and Safety of Efgartigimod PH20 SC PFS in Adult Participants With Graves' Disease.RecruitingNCT07596849Phase 3
• A Study to Assess the Efficacy and Safety of Empasiprubart in Adults With CIDPRecruitingNCT07091630Phase 3
• This Study Will Explore Whether a Combination of the Investigational Drug Mevrometostat (PF-06821497) and Enzalutamide Will Work Better Than Taking Enzalutamide Alone in Participants With mCSPC Who Are ARPI naïve.RecruitingNCT07028853Phase 3
• A Study to Learn More About How Well Sevabertinib Works and How Safe it is Compared With Standard Treatment, in Participants Who Have Advanced Non-small Cell Lung Cancer (NSCLC) With Mutations of the Human Epidermal Growth Factor Receptor 2 (HER2)RecruitingNCT06452277Phase 3
• A Study to Assess Adverse Events, Change in Disease Activity, and How Intravenous and Subcutaneous Risankizumab Moves Through the Body of Pediatric Participants With Moderately to Severely Active Crohn's DiseaseRecruitingNCT05995353Phase 3
• A Maintenance Study to Investigate the Efficacy and Safety of Duvakitug in Participants With Moderately to Severely Active Crohn's DiseaseRecruitingNCT07184944Phase 3
• An Induction Study to Investigate the Efficacy and Safety of Duvakitug in Participants With Moderately to Severely Active Crohn's DiseaseRecruitingNCT07184931Phase 3
• A Study to Compare the Combination of Navlimetostat (BMS-986504) With Pembrolizumab and Chemotherapy Versus Placebo Plus Pembrolizumab and Chemotherapy in First-line Metastatic Non-small Cell Lung Cancer Participants With Homozygous MTAP DeletionRecruitingNCT07063745Phase 2/3
• A Study of Orelabrutinib in Patients With Secondary Progressive Multiple SclerosisRecruitingNCT07299019Phase 3
• Long-Term, Open-label Study of Oral Deucrictibant Extended-Release Tablet for Prophylaxis Against Angioedema Attacks in Adolescents and Adults With HAEEnrolling by invitationNCT06679881Phase 3
• A Study of Roxadustat to Treat Anemia in Children and Teenagers With Chronic Kidney DiseaseRecruitingNCT05970172Phase 3
• A Study to Learn More About the Long-Term Safety of Litifilimab (BIIB059) Injections and it's Effects on Symptoms in Adults With Systemic Lupus Erythematosus (SLE)Enrolling by invitationNCT05352919Phase 3
• Safety, Efficacy, and Pharmacokinetics of BNT327 in Combination With Chemotherapy and Other Investigational Agents for Lung CancerRecruitingNCT06712316Phase 2/3
• A Study to Assess Disease Activity and Adverse Events of Intravenous (IV) Telisotuzumab Vedotin Compared to IV Docetaxel in Adult Participants With Previously Treated Non-Squamous Non-Small Cell Lung Cancer (NSCLC)RecruitingNCT04928846Phase 3
• A Study to Evaluate the Efficacy and Safety of KarXT for the Treatment of Manic Episodes in Bipolar-I DisorderRecruitingNCT06951698Phase 3