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Clinical trial register · European Union · CTIS

Clinical Trials in Czechia

The most recently authorised trials on the EU Clinical Trials Information System (CTIS), the single register for every trial run under the EU Clinical Trials Regulation (536/2014). CTIS holds a far larger historical archive than any one list can usefully show — this register states both numbers rather than picking one.

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Source: EMA Clinical Trials Information System (CTIS). Showing the 2500 most recently authorised of 12445 total CTIS records — a stated recency window, not the full historical archive. Synced 20 Sep 2026, 03:17 UTC
2500
Shown in this register
most recently authorised
12,445
Total on CTIS
full historical archive
745
Phase III
within the shown window
Top member states
Spain 1023 France 890 Germany 861 Italy 742 Poland 581 Netherlands 524
Narrow the registerReset
Phase
Phase I 558 Phase I/II 214 Phase II 726 Phase III 745 Phase IV 257
Lead sponsor
AstraZeneca AB 60 Assistance Publique Hopitaux De Paris 49 Merck Sharp & Dohme LLC 48 Pfizer Inc. 45 Novo Nordisk A/S 42
Member state
Spain 1023 France 890 Germany 861 Italy 742 Poland 581 Netherlands 524 Belgium 426 Czechia 327
All 28 states
327 of 2500 shown studies
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Phase
Study
Lead sponsor
Area
Member states
Decision
Phase II
A Phase 2 Open-Label, Umbrella Platform Design Study of Investigational Agent(s) in Participants With 2L/3L Unresectable Locally Advanced or Metastatic Esophageal Cancer: KEYMAKER-U06 Substudy 06F
2026-525213-31-00Esophageal squamous cell carcinoma
Merck Sharp & Dohme LLC
Neoplasms
Czechia, Germany, France, Norway
12/05/2026
Phase III
A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study to Assess the Efficacy and Safety of GB-0895 Adjunctive Therapy in Adults and Adolescents with Severe Uncontrolled Asthma
2025-521950-41-00severe uncontrolled asthma
Generate Biomedicines Inc.
Respiratory Tract Diseases
Latvia, Hungary, Bulgaria, Romania, Portugal, Netherlands, Croatia, Germany, Greece, Czechia
12/05/2026
Phase III
DAREON®-Lung-1: A Phase III multi-center, open-label, randomised trial of intravenous obrixtamig in combination with atezolizumab, carboplatin, and etoposide vs. atezolizumab, carboplatin, and etoposide as first-line treatment in patients with extensive-stage small cell lung cancer.
2025-520565-51-00small cell lung cancer
Boehringer Ingelheim International GmbH, Boehringer Ingelheim Espana S.A.
Neoplasms
Czechia, Sweden, Poland, Netherlands, Greece, Latvia, Finland, Norway, Belgium, Austria, Portugal, Romania, Italy, Estonia, France, Ireland, Germany, Spain, Bulgaria, Hungary
12/05/2026
Phase III
A Phase 3, Multicenter, Long-Term Extension Study to Evaluate the Long-Term Safety, Tolerability, and Efficacy of Zasocitinib (TAK-279) in Subjects With Active Psoriatic Arthritis Who are Either Biologic DMARD-Naïve or Biologic DMARD-Experienced, Including Those With Inadequate Response to Biologic DMARDs
2025-522586-30-00Psoriatic Arthritis
Takeda Development Center Americas Inc.
Musculoskeletal Diseases
Germany, Belgium, Spain, Czechia, Croatia, Portugal, Poland, Latvia, Bulgaria, France, Estonia, Hungary, Italy
12/05/2026
Phase III
A Double-Blind, Randomized, Comparative Study of Obicetrapib and Bempedoic Acid on top of Maximally Tolerated Lipid-Lowering Therapy in Patients With Dyslipidemia at High to Very High Cardiovascular Risk (MEDICI Study)
2025-524265-24-00Dyslipidemia at High to Very High Cardiovascular Risk
A. Menarini International Licensing S.A.
Hemic and Lymphatic Diseases
Spain, Poland, Netherlands, Italy, Slovakia, Czechia, Germany
11/05/2026
Phase III
A Phase 3, Randomized, Double-Blind, Placebo-Controlled, Multicenter Study to Assess the Efficacy and Safety of Panzyga for Prevention of Major Infections in Patients with Hypogammaglobulinemia and Autoimmune or Rheumatic Conditions Receiving Treatment with B-cell Depletion Therapy ("PROTECT")
2025-522854-37-00Prevention of a Major infection in patients with Hypogammag…
Octapharma Pharmazeutika Produktionsgesellschaft mbH
Immune System Diseases
Czechia, Lithuania, Greece, Poland, Germany, Latvia, Bulgaria, Italy
11/05/2026
Phase III
J5E-MC-JZXB - FRAmework-01: A Two-Part Phase 3 Study of Sofetabart Mipitecan (LY4170156) versus Chemotherapy or Mirvetuximab Soravtansine in Platinum-Resistant Ovarian Cancer, and Sofetabart Mipitecan plus Bevacizumab versus Platinum-Based Chemotherapy plus Bevacizumab in Platinum-Sensitive Ovarian Cancer
2025-522255-25-00Fallopian Tube Neoplasms, Neoplasm Metastasis, Ovarian Neop…
Eli Lilly & Co.
Neoplasms
Netherlands, Hungary, France, Austria, Poland, Italy, Denmark, Romania, Greece, Norway, Czechia, Belgium, Spain, Ireland, Germany
11/05/2026
Phase III
A double-blinded extension study to evaluate the long-term safety and tolerability of itepekimab in adult participants with inadequately controlled chronic rhinosinusitis with nasal polyps (CRSwNP) who participated in either EFC18418 or EFC18419 clinical studies
2025-522983-33-00Chronic rhinosinusitis with nasal polyps
Sanofi-Aventis Recherche & Developpement
Respiratory Tract Diseases
Germany, Netherlands, Portugal, Denmark, Sweden, Finland, France, Spain, Austria, Italy, Hungary, Romania, Belgium, Czechia, Poland
11/05/2026
Phase III
A Phase III, Randomized, Double-Blind, Placebo-Controlled, Parallel Group Study to Evaluate the Efficacy and Safety of Once-Weekly RO7795068 Administered to Participants With Obesity or Overweight Without Type 2 Diabetes
2025-523104-71-00Obesity or Overweight Without Type 2 Diabetes
F. Hoffmann-La Roche AG
Nutritional and Metabolic Diseases
Poland, Hungary, France, Belgium, Italy, Netherlands, Czechia, Germany, Spain
07/05/2026
Phase I
Bioequivalence study comparing two temazepam 20 mg tablet formulations after fasted administration; an open, randomized, single centre, single dose study with crossover design in healthy subjects
2025-524376-36-00short-term treatment of insomnia
Orion Corporation
Nervous System Diseases
Czechia
05/05/2026
Phase III
Phase 3, Multicenter, Randomized, Double-Masked, Vehicle-Controlled, Parallel Group Study to Evaluate the Safety and Efficacy of Recombinant Human Nerve Growth Factor Eye Drop Solution in Participants With Persistent Corneal Epithelial Defect (PCED)
2025-523443-35-00Persistent Corneal Epithelial Defect (PCED)
Dompe' Farmaceutici S.p.A.
Eye Diseases
Czechia, Italy, Netherlands, Poland, Germany, Spain, Hungary, France
05/05/2026
Phase II
A Long-Term Extension Study to Assess the Efficacy, Safety, and Tolerability of IMVT-1402 in Adult Patients With Graves' Disease
2025-524001-33-00Graves’ Disease
Immunovant Sciences GmbH
Immune System Diseases
Italy, Greece, Germany, Hungary, Poland, Czechia, Netherlands, Spain, Belgium, Bulgaria, Latvia
05/05/2026
Phase III
A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of KAI-9531 Administered Once Weekly in Participants Living with Obesity or Overweight with Weight-Related Comorbidities Who Do Not Have Diabetes
2025-523486-17-00Obesity
Kailera Therapeutics Inc.
Nutritional and Metabolic Diseases
Bulgaria, Hungary, Spain, Germany, Czechia, Poland
05/05/2026
Phase III
A Phase 3, Randomized, Double-blind, Placebo-controlled, Multicenter Study of Nipocalimab in Adults with Moderate to Severe Systemic Lupus Erythematosus
2025-523552-31-00Systemic Lupus Erythematosus
Janssen Cilag International
Immune System Diseases
Denmark, Hungary, Portugal, Italy, Norway, Greece, Slovakia, Czechia, France, Poland, Bulgaria, Germany, Spain, Romania, Finland
05/05/2026
Phase II
A randomized, double masked, placebo-controlled, multicenter, dose-range finding study to assess the efficacy and safety of FWY003 in patients with geographic atrophy secondary to age-related macular degeneration
2025-523704-77-00Geographic atrophy secondary to age-related macular degener…
Novartis Pharma AG
Eye Diseases
Bulgaria, Romania, Germany, Czechia, Spain, Poland, Italy, Hungary, France
04/05/2026
Phase III
A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of KAI-9531 Administered Once Weekly in Participants Living with Obesity or Overweight and Diabetes
2025-523510-87-00Obesity
Kailera Therapeutics Inc.
Nutritional and Metabolic Diseases
Hungary, Poland, Bulgaria, Germany, Czechia, Spain
04/05/2026
Phase III
A multicenter open-label extension study to evaluate the long-term safety and tolerability of zigakibart in adults with primary IgA nephropathy
2024-519638-22-00IgA nephropathy
Novartis Pharma AG
Immune System Diseases
Belgium, France, Czechia, Croatia, Greece, Germany, Italy, Spain
04/05/2026
Phase III
A Phase 3, Randomized, Double-blind, Study of Belzutifan + Zanzalintinib Versus Belzutifan + Placebo in Participants with Advanced RCC who have progressed on or after both PD-1/L1 and VEGF-TKI therapies in sequence or in combination (LITESPARK-034)
2024-516993-31-00Renal Cell Carcinoma
Merck Sharp & Dohme LLC
Neoplasms
Denmark, Spain, Netherlands, Germany, France, Czechia, Poland, Italy, Greece
04/05/2026
Phase I
First-in-Human Trial to Assess REGN20423 in Healthy Adult Participants and Adult Participants with Atopic Dermatitis
2025-524205-32-00Atopic Dermatits
Regeneron Pharmaceuticals Inc.
Skin and Connective Tissue Diseases
Belgium, Czechia, Germany, Poland
30/04/2026
Phase III
An Adaptive, 2-Part, Randomized, Double-Blind, Placebo-Controlled Trial to Evaluate the Efficacy and Safety of IKT-001 in Pulmonary Arterial Hypertension.
2024-520218-23-00Pulmonary Arterial Hypertension
Inhibikase Therapeutics Inc.
Cardiovascular Diseases
Spain, Poland, Italy, Belgium, Latvia, Denmark, Czechia, Germany, France, Netherlands, Portugal, Ireland, Austria, Greece, Lithuania
28/04/2026
Phase III
A Multicenter, Open-label, Phase 3 Extension Study to Evaluate the Long‑term Efficacy and Safety in Participants Who Are Currently on Treatment in a Belzutifan Study (LITESPARK-043)
2025-524160-38-00Renal Cell Carcinoma, hepatocellular carcinoma, nonMSI-H/dM…
Merck Sharp & Dohme LLC
Neoplasms
Czechia, Spain, Poland, Belgium, Finland, Germany, France, Netherlands, Hungary, Denmark
28/04/2026
Phase III
A two-part, seamless, multicenter, RANDOMIZED, open-label, ADAPTIVE Phase ii/III STUDY OF THE BLOOD-BRAIN barrier PENETRANT RO7771950 versus Tucatinib, both in combination with trastuzumab and capecitabine, in patients with Pretreated unresectable locally advanced or metastatic HER2-positive breast cancer, with or without central nervous system metastases
2025-524498-17-00Pretreated Unresectable Locally Advanced or Metastatic huma…
F. Hoffmann-La Roche AG
Neoplasms
Belgium, France, Italy, Austria, Romania, Poland, Portugal, Czechia, Germany, Spain, Hungary
28/04/2026
Phase III
A randomized, phase 3, double-blind, double-dummy, active comparator-controlled multicenter clinical trial to evaluate the efficacy and safety of linaprazan glurate compared to lansoprazole in maintenance of healing in participants with healed erosive esophagitis (EE) due to gastroesophageal reflux disease (GERD) of Los Angeles (LA) grades A to D
2025-522750-39-00Erosive esophagitis (EE) due to gastroesophageal reflux dis…
Cinclus Pharma Holding AB (publ)
Digestive System Diseases
Hungary, Germany, Romania, Bulgaria, Czechia, Poland
28/04/2026
Phase I
Safety of stem cells in treatmemt of retinal diseases.
2023-503573-38-00Retinal degenerative diseases
Bioinova a.s.
Eye Diseases
Czechia
28/04/2026
Phase III
A Phase 3, Randomized, Open-label, Multicenter Study of Sacituzumab Tirumotecan (sac-TMT, MK-2870) Maintenance Treatment With or Without Bevacizumab Versus Standard of Care in Participants With Newly Diagnosed Advanced HRD-Negative Ovarian Cancer Following First-line Platinum-based Chemotherapy (TroFuse-021/ENGOTov85/ GOG-3102)
2023-508047-40-00Ovarian cancer
Merck Sharp & Dohme LLC
Neoplasms
Norway, Ireland, Spain, Greece, France, Poland, Denmark, Austria, Hungary, Belgium, Czechia, Finland, Germany, Italy, Sweden
28/04/2026
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Priya Life Science (2026). EU Clinical Trials Register (CTIS), filtered. Derived from the EMA Clinical Trials Information System. Retrieved 20 September 2026. https://priyalifescience.com/clinical-trials-europe/country/czechia

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Listing here is informational and not medical advice; eligibility is determined by each study team. Looking for Irish sites? See the Ireland, UK or USA registers. For approved medicines, see the EMA Approvals Tracker.