Clinical trials in Bulgaria
3,178 studies list at least one site in Bulgaria. 339 are recruiting or about to start. Per ClinicalTrials.gov, last updated 2026-11-10.
Get an email when these change. Save the studies in Bulgaria recruiting or about to start — once a week, free: studies that open, close, add sites or post results.
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Example · made-up studies
Breast cancer · Recruiting: 2 came in, 3 changed
What changed in your saved searches, Oct 31 – Nov 6:
A study of drug A after surgery for early breast cancer
Came in · now Recruiting
Drug B with hormone therapy in advanced breast cancer
Changed
· Sites: 4 added, including Seoul and Busan
· Enrollment: 300 → 450 participants
Exercise during chemotherapy
Now Active, not recruiting
One email a week for all your saved searches. Stop any time.
Status
Most studied here
Who runs them
AstraZeneca (221) · Novartis Pharmaceuticals (163) · Hoffmann-La Roche (138) · Pfizer (134) · GlaxoSmithKline (103) · Novo Nordisk A/S (91) · Bayer (87) · Sanofi (84)
What changed recently
From the registry's own updates since Oct 12, 2026.
Started recruiting3
- Ordastobart (INBRX-106) Add-on to Pembrolizumab in 1L HPV+ PD-L1+ R/M OPSCC (HexAgon-HN)Oct 27, 2026NCT06295731
- Study to Evaluate the Safety, Pharmacology and Efficacy of WIN378 in Adults With Moderate or Severe AsthmaOct 21, 2026NCT07120503
- A Study to Learn How Enzalutamide, Apalutamide and Bicalutamide Affect the Way Fezolinetant is Processed in Men With Prostate CancerOct 16, 2026NCT07783282
First site in Bulgaria10
- An Extension Study to Assess Impact of Multiple Sclerosis (MS) on Physical Function and Provide Continued Ocrelizumab TreatmentOct 28, 2026NCT06675955
- A Phase 1 Study of JADE201 in Participants With Rheumatoid ArthritisOct 23, 2026NCT07533955
- A Study to Learn About the Study Medicine Called PF-07275315 in People With Moderate to Severe Chronic Obstructive Pulmonary DiseaseOct 22, 2026NCT07363694
- A Phase 2 Study of LTI-03 in Patients With Idiopathic Pulmonary FibrosisOct 16, 2026NCT06968845
- A Maintenance Study to Investigate the Efficacy and Safety of Duvakitug in Participants With Moderately to Severely Active Ulcerative ColitisOct 16, 2026NCT07185009
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- A Study to Learn How Enzalutamide, Apalutamide and Bicalutamide Affect the Way Fezolinetant is Processed in Men With Prostate CancerOct 16, 2026NCT07783282
- A Study of Telitacicept for the Treatment of Generalized Myasthenia Gravis (UPSTREAM MG)Oct 15, 2026NCT06456580
- A Phase 2 Study to Investigate the Efficacy, Safety and Tolerability of Remibrutinib (LOU064) in Adult Patients With Papulopustular Rosacea (PPR)Oct 15, 2026NCT07681271
- Lisaftoclax (APG-2575) Combined With Azacytidine (AZA) in the Treatment of Patients With Higher-risk Myelodysplastic Syndrome (GLORA-4).Oct 13, 2026NCT06641414
- A Study to Learn About Study Medicine Called PF-08049820 in People With EczemaOct 13, 2026NCT07216027
Results posted8
- Pegcetacoplan Long Term Safety and Efficacy Extension StudyNov 10, 2026NCT03531255
- A Study to Evaluate the Efficacy and Safety of Povorcitinib (INCB054707) in Participants With Moderate to Severe Hidradenitis Suppurativa (HS)Nov 5, 2026NCT05620836
- Efficacy and Safety of KBP-5074 in Uncontrolled Hypertension and Moderate or Severe Chronic Kidney Disease (CKD)Nov 4, 2026NCT04968184
- Evaluation of Rifaximin SSD for Delaying Encephalopathy Decompensation in Patients With CirrhosisOct 28, 2026NCT05297448
- A Study to Evaluate Astegolimab in Participants With Chronic Obstructive Pulmonary DiseaseOct 28, 2026NCT05595642
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- Corona Mortis in Patients Undergoing TEP for Inguinal HerniaOct 20, 2026NCT04303442
- A Study to Evaluate the Efficacy and Safety of Astegolimab in Participants With Chronic Obstructive Pulmonary DiseaseOct 16, 2026NCT05037929
- Study to Assess the Efficacy, Safety, and Tolerability of SAR440340/REGN3500/Itepekimab in Chronic Obstructive Pulmonary Disease (COPD)Oct 15, 2026NCT04701983
Stopped3
- A Study to Investigate the Long-term Safety, Tolerability and Efficacy of Balinatunfib in Participants With Crohn's Disease or Ulcerative Colitis (SPECIFI-IBD-LTS)TerminatedOct 22, 2026NCT07222189
- A Study to Investigate Efficacy and Safety of SAR441566 in Patients With Ulcerative ColitisTerminatedOct 21, 2026NCT06867094
- A Study to Investigate Efficacy and Safety of SAR441566 in Patients With Crohn's Disease.TerminatedOct 13, 2026NCT06637631
Newly registered8
- A Study of Brenipatide in Participants With Major Depressive DisorderNov 10, 2026NCT07928245
- A Research Study to Investigate How Well the Medicine CagriSema Lowers High Blood Pressure in People Living With High Blood Pressure and ObesityNov 5, 2026NCT07919405
- A Study to Learn How Well People With Bronchiectasis Tolerate Continued Treatment With Verducatib After Earlier Studies (AIRTIVITY®-ON)Nov 4, 2026NCT07915219
- Accelerated Dual-Protocol rTMS for Refractory Trigeminal NeuralgiaNov 2, 2026NCT07908420
- The NUVASCULAR HARBOR Occlusion Device EU StudyOct 28, 2026NCT07900464
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- Cefepime-Zidebactam Versus Ceftazidime-Avibactam With or Without Colistin for Hospital-Acquired or Ventilator-Associated Bacterial PneumoniaOct 21, 2026NCT07885891
- Prevalence, Clinical Characteristics and Treatment of Bulgarian Patients With Resistant HypertensionOct 16, 2026NCT07877844
- Cardiovascular Risk in Patients With Primary HyperparathyroidismOct 13, 2026NCT07870369
Studies
Recruiting first, then most recently updated. Showing 50 of 3,178 — search for more.
- An Open-Label Extension Study to Evaluate the Safety and Tolerability of SPT-300 (GlyphAllo) in Participants With Major Depressive Disorder, With or Without Anxious Distress (BUOY-1 OLE Study)Enrolling by invitationNCT07161700Phase 2
- A Study of Brenipatide in Participants With Major Depressive DisorderNot yet recruitingNCT07928245Phase 2
- Pharmacokinetics, Pharmacodynamics, Safety and Tolerability of Glycopyrronium (Bromide) in Children (6 to Less Than 12 Years) With AsthmaRecruitingNCT05222529Phase 2
- A Study to Evaluate the Efficacy and Safety of QMF149 (Indacaterol Acetate/Mometasone Furoate) Versus Budesonide in Children From 6 to Less Than 12 Years of Age With AsthmaRecruitingNCT05562466Phase 3
- A Study of Calderasib (MK-1084) Plus Pembrolizumab (MK-3475) in Participants With KRAS G12C Mutant Non-small Cell Lung Cancer (NSCLC) With Programmed Cell Death Ligand 1 (PD-L1) Tumor Proportion Score (TPS) ≥50% (MK-1084-004/KANDLELIT-004)RecruitingNCT06345729Phase 3
- A Phase 2 Study to Investigate the Efficacy, Safety and Tolerability of Remibrutinib (LOU064) in Adult Patients With Papulopustular Rosacea (PPR)RecruitingNCT07681271Phase 2
- Rollover Study for Participants Who Have Completed a Previous Clinical Study With Anifrolumab (Saphnelo) and Clinically Benefited From Continued TreatmentRecruitingNCT07691970Phase 3
- A Study to Evaluate the Efficacy and Safety of SPT-300 (GlyphAllo) in Participants With Major Depressive Disorder, With or Without Anxious Distress (BUOY-1 Study)RecruitingNCT07065240Phase 2
- A Study to Test if Tenecteplase Helps People to Recover From an Acute Stroke When Given More Than 4.5 Hours After the Person Was Last Seen WellRecruitingNCT07361302Phase 3
- DAREON ® -Lung-1: A Study in People With Advanced Small Cell Lung Cancer to Compare Obrixtamig Plus Atezolizumab, Carboplatin, and Etoposide Treatment With Standard ChemoimmunotherapyRecruitingNCT07472517Phase 3
- A Study of GSK5764227 in Participants With Relapsed Small Cell Lung Cancer (SCLC) [EMBOLD SCLC-301]RecruitingNCT07099898Phase 3
- A Study to Investigate GB-0895 Adjunctive Therapy in Adults and Adolescents With Severe Uncontrolled Asthma (SOLAIRIA-1)RecruitingNCT07276724Phase 3
- A Study of Orelabrutinib in Patients With Primary Progressive Multiple SclerosisRecruitingNCT07067463Phase 3
- Asciminib Roll-over StudyRecruitingNCT04877522Phase 4
- A Study of Pembrolizumab (MK-3475) With or Without Intismeran Autogene (V940) in Participants With Non-small Cell Lung Cancer (V940-009/INTerpath-009)RecruitingNCT06623422Phase 3
- Phase 3 Extension Study to Evaluate Long-term Safety of Ianalumab in Participants With Systemic Lupus Erythematosus (SIRIUS-SLE Extension).RecruitingNCT06133972Phase 3
- VE303 for Prevention of Recurrent Clostridioides Difficile InfectionRecruitingNCT06237452Phase 3
- A Study of Azenosertib (ZN-c3) in Patients With Ovarian CancerRecruitingNCT04516447Phase 1
- Study of IV Human Plasma-derived C1 Esterase Inhibitor Concentrate in Patients With Congenital C1-INH Deficiency for Treatment and Pre-procedure Preventing of Acute Hereditary Angioedema AttacksRecruitingNCT06361537Phase 3
- Secukinumab Open Label Roll-over Extension ProtocolRecruitingNCT04638647Phase 4
- A Study to Investigate Efficacy and Safety of FWY003 Compared With Placebo in Participants With Geographic Atrophy Secondary to Age-related Macular DegenerationRecruitingNCT07441642Phase 2
- Remibrutinib Open Label Roll-over Post-trial Access ProtocolRecruitingNCT07456891Phase 3
- A Study to Assess the Efficacy and Safety of Empasiprubart in Adults With CIDPRecruitingNCT07091630Phase 3
- A Study to Test the Efficacy and Safety of Staccato Alprazolam in Study Participants 12 Years of Age and Older With Stereotypical Prolonged SeizuresRecruitingNCT05077904Phase 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
- 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
- A Study of Elritercept to Treat Anemia in Adults With Very Low, Low, or Intermediate Risk Myelodysplastic Syndromes (MDS) Who Need Regular Blood TransfusionsRecruitingNCT06499285Phase 3
- A Study to Learn About the Study Medicine Called PF-07275315 in People With Moderate-To-Severe AsthmaRecruitingNCT06977581Phase 2
- 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 to Learn if Bimekizumab Given in Different Ways is Safe and Moves Similarly Throughout the Body Over Time in AdultsRecruitingNCT07290036Phase 1
- A Phase 3 Study to Evaluate the Safety and Efficacy of KarXT + KarX-EC for the Treatment of Agitation Associated With Alzheimer's Disease (ADAGIO-1)RecruitingNCT07011732Phase 3
- REGN7508 Versus Apixaban and Enoxaparin for Thromboprophylaxis After Total Knee Arthroplasty in AdultsRecruitingNCT07015905Phase 3
- A Study to Compare Elritercept to Placebo in Adults With Myelofibrosis and Anemia Who Are Taking RuxolitinibRecruitingNCT07623161Phase 3
- A Study to Evaluate Patient-Reported Satisfaction, Effectiveness, and Safety of Atezolizumab in Participants Treated in Routine Clinical PracticeRecruitingNCT07284121
- A Study to Compare Elritercept With Epoetin Alfa to Treat Anemia in Adults With Lower Risk Myelodysplastic Syndromes (LR-MDS) Who Need Regular Blood TransfusionsRecruitingNCT07422480Phase 3
- Torvutatug Samrotecan Plus Bevacizumab as First-line Maintenance in Non-Homologous Recombination Deficiency (Non-HRD) Positive Advanced Epithelial Ovarian CancerRecruitingNCT07851025Phase 3
- A Research Study to Investigate How Well the Medicine CagriSema Lowers High Blood Pressure in People Living With High Blood Pressure and ObesityNot yet recruitingNCT07919405Phase 3
- ACP-204 in Adults With Alzheimer's Disease PsychosisRecruitingNCT06159673Phase 2/3
- Phase 3 Study of RLY-2608 + Fulvestrant vs Capivasertib + Fulvestrant as Treatment for Locally Advanced or Metastatic PIK3CA-mutant HR+/HER2- Breast CancerRecruitingNCT06982521Phase 3
- Treatment and Secondary Prevention of Venous Thromboembolism (VTE) in Adult Participants With Solid and Hematologic CancersRecruitingNCT07493304Phase 3
- A Study to Learn About the Study Medicine Called PF-08046054/SGN-PDL1V Versus Docetaxel in Adult Participants With Previously-Treated Programmed Cell Death Ligand 1 (PD-L1) Positive Non-Small-Cell Lung Cancer (NSCLC)RecruitingNCT07144280Phase 3
- A Study to Evaluate Pumitamig Versus Durvalumab Following Concurrent Chemoradiation Therapy in Participants With Unresectable Stage III Non-small Cell Lung Cancer (NSCLC) (ROSETTA Lung-201)RecruitingNCT07361497Phase 3
- A Study to Find Out if BI 764198 Helps Adults and Adolescents With a Kidney Condition Called Focal Segmental Glomerulosclerosis (FSGS)RecruitingNCT07220083Phase 3
- A Study to Learn About Study Medicine Called PF-08049820 in People With EczemaRecruitingNCT07216027Phase 2
- ACP-204 in Adults With Alzheimer's Disease Psychosis Open Label Extension StudyEnrolling by invitationNCT06194799Phase 3
- A Study to Learn How Well People With Bronchiectasis Tolerate Continued Treatment With Verducatib After Earlier Studies (AIRTIVITY®-ON)Not yet recruitingNCT07915219Phase 3
- A Study of Mezagitamab in Adults With Chronic Primary Immune ThrombocytopeniaRecruitingNCT06722235Phase 3
- A Study of Lebrikizumab (LY3650150) in Participants With Chronic Rhinosinusitis and Nasal Polyps Treated With Intranasal Corticosteroids (CONTRAST-NP)RecruitingNCT06338995Phase 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
- 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