Clinical trials in Portugal

3,935 studies list at least one site in Portugal. 781 are recruiting or about to start. Per ClinicalTrials.gov, last updated 2026-09-24.

Studies

Recruiting first, then most recently updated. Showing 50 of 3,935 — search for more.

• Study of PM54 in Combination With Cytotoxic and Targeted Agents in Adult Participants With Advanced MalignanciesNot yet recruitingNCT07839819Phase 1/2
• A Study of Lebrikizumab (LY3650150) in Participants With Chronic Rhinosinusitis and Nasal Polyps Treated With Intranasal Corticosteroids (CONTRAST-NP)RecruitingNCT06338995Phase 3
• A Study to Assess the Efficacy and Safety of Efgartigimod PH20 SC in Adults With Systemic SclerosisRecruitingNCT06655155Phase 2
• A Study of Nemtabrutinib (MK-1026) Versus Comparator (Investigator's Choice of Ibrutinib or Acalabrutinib) in First Line (1L) Chronic Lymphocytic Leukemia (CLL)/ Small Lymphocytic Lymphoma (SLL) (MK-1026-011/BELLWAVE-011)RecruitingNCT06136559Phase 3
• A Study to Assess Efficacy and Safety of Empasiprubart Versus IVIg in Adults With CIDPRecruitingNCT06920004Phase 3
• A Platform Trial for Pediatric Participants With Obesity or Overweight (LY900040)RecruitingNCT06672549Phase 3
• Study of Olomorasib (LY3537982) in Combination With Standard of Care in Participants With Resected or Unresectable KRAS G12C-mutant Non-Small Cell Lung CancerRecruitingNCT06890598Phase 3
• A Study of Zolbetuximab Together With Pembrolizumab and Chemotherapy in Adults With Gastric CancerRecruitingNCT06901531Phase 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
• Pridopidine Phase 3 Study in Huntington's DiseaseRecruitingNCT07609108Phase 3
• A Study to Evaluate the Safety and Efficacy of Oral Nizubaglustat (AZ-3102) in Late-infantile and Juvenile Forms of Niemann-Pick Type C Disease, GM1 Gangliosidosis or GM2 GangliosidosisRecruitingNCT07054515Phase 3
• LDL Cholesterol Reduction Following Ezetimibe InitiationRecruitingNCT07839741Phase 4
• Open-Label Extension Study to Assess GLM101 in PMM2-CDG PatientsEnrolling by invitationNCT06657859Phase 2
• A Study of Sacituzumab Tirumotecan (MK-2870) as a Single Agent and in Combination With Pembrolizumab (MK-3475) Versus Treatment of Physician's Choice in Participants With HR+/HER2- Unresectable Locally Advanced or Metastatic Breast Cancer (MK-2870-010)RecruitingNCT06312176Phase 3
• A Repeated Dose-finding Study of Sarilumab in Children and Adolescents With Systemic Juvenile Idiopathic Arthritis (SKYPS)RecruitingNCT02991469Phase 2
• A Study to Compare the Efficacy of Nivolumab and Relatlimab Plus Chemotherapy vs Pembrolizumab Plus Chemotherapy for Stage IV/Recurrent Non-squamous Non-small Cell Lung Cancer With PD-L1 Expression ≥ 1%RecruitingNCT06561386Phase 3
• Phase IIIb Study of Ribociclib + ET in Early Breast CancerRecruitingNCT05827081Phase 3
• Neoadjuvant and Adjuvant Treatment in Resectable Non-small Cell Lung CancerRecruitingNCT05061550Phase 2
• Pan Tumor Rollover StudyRecruitingNCT03899155Phase 2
• 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
• (HARBOR) Study to Evaluate Efficacy and Safety of BLU-263 Versus Placebo in Patients With Indolent Systemic MastocytosisRecruitingNCT04910685Phase 2/3
• A Study to Evaluate the Efficacy and Safety of Frexalimab, Brivekimig, or Rilzabrutinib in Participants Aged 16 to 75 Years With Primary Focal Segmental Glomerulosclerosis or Minimal Change DiseaseRecruitingNCT06500702Phase 2
• Safety and Performances of the LINEA Cardiac Pacing Lead Optimized for the Implantation in Interventricular SeptumRecruitingNCT07342608Not applicable
• Palazestrant in Combination With Ribociclib for the First-line Treatment of ER+/HER2- Advanced Breast CancerRecruitingNCT07085767Phase 3
• A Study to Access Intravenous (IV) Telisotuzumab Adizutecan in Combination With IV Bevacizumab Compared to Standard of Care IV Bevacizumabin Combination With Oral Trifluridine and Tipiracil in Adult Participants With Refractory Metastatic Colorectal CancerRecruitingNCT07525206Phase 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 Test the Efficacy and Safety of Riliprubart Against the Usual Treatment of Intravenous Immunoglobulin (IVIg) in People With Chronic Inflammatory Demyelinating Polyneuropathy (CIDP)RecruitingNCT06290141Phase 3
• A Master Protocol (AMAZ): A Study of Mirikizumab (LY3074828) in Pediatric Participants With Ulcerative Colitis or Crohn's Disease (SHINE-ON)RecruitingNCT04844606Phase 3
• Belzutifan/MK-6482 for the Treatment of Advanced Pheochromocytoma/Paraganglioma (PPGL), Pancreatic Neuroendocrine Tumor (pNET), Von Hippel-Lindau (VHL) Disease-Associated Tumors, Advanced Gastrointestinal Stromal Tumor (wt GIST), or Solid Tumors With HIF-2α Related Genetic Alterations (MK-6482-015)RecruitingNCT04924075Phase 2
• A Study of Adagrasib Plus Pembrolizumab Plus Chemotherapy vs. Placebo Plus Pembrolizumab Plus Chemotherapy in Participants With Previously Untreated Non-squamous Non-small Cell Lung Cancer With KRAS G12C Mutation (KRYSTAL-4)RecruitingNCT06875310Phase 3
• A Study to Evaluate KarXT as a Treatment for Psychosis Associated With Alzheimer's Disease (ADEPT-4)RecruitingNCT06585787Phase 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 Oral Atogepant Tablets to Assess Adverse Events and Change in Disease Activity To Prevent Migraine in Participants Aged 12 to 17 YearsRecruitingNCT06810505Phase 3
• EIK1005-002: A Clinical Research Study Evaluating EIK1005, a Werner Helicase Inhibitor, as Monotherapy and in Combination With Pembrolizumab in Participants With Advanced Solid Tumors Including Microsatellite Instability High (MSI-H) TumorsRecruitingNCT07262619Phase 1/2
• A Study to Investigate Pharmacokinetics, Pharmacodynamics, and Safety of Subcutaneous Anifrolumab in Pediatric Participants 5 to < 18 Years of Age With Systemic Lupus ErythematosusRecruitingNCT07630714Phase 2
• Efficacy, Safety, and Tolerability Study of Lunsekimig Compared With Placebo in Adult Participants With Inadequately Controlled Chronic Obstructive Pulmonary Disease (COPD) Characterized by an Eosinophilic PhenotypeRecruitingNCT07190209Phase 3
• A Study of Baricitinib (LY3009104) for the Delay of Stage 3 Type 1 Diabetes in At-Risk Children and AdultsRecruitingNCT07222137Phase 3
• LY4268989 in Adults With Moderately to Severely Active Ulcerative ColitisRecruitingNCT07415044Phase 2
• A Study of Baricitinib (LY3009104) to Preserve Beta Cell Function in Children and Adults Newly Diagnosed With Type 1 Diabetes (BARICADE-PRESERVE)RecruitingNCT07222332Phase 3
• A Master Protocol of Multiple Agents in Adults With Metabolic Dysfunction-Associated Steatotic Liver Disease (SYNERGY-Outcomes)RecruitingNCT07165028Phase 3
• A Study to Evaluate the Safety and Efficacy of Oral Nizubaglustat (AZ-3102) in Late-infantile and Juvenile Forms of Niemann-Pick Type C Disease (NPC)RecruitingNCT07082725Phase 3
• A Study of Xaluritamig Plus Abiraterone Versus Investigator's Choice in Participants With Chemotherapy-naïve Metastatic Castration-resistant Prostate CancerRecruitingNCT07213674Phase 3
• A Solid Tumor Study for Long Term Treatment of Cancer Patients Who Participated in Adagrasib StudiesRecruitingNCT07415031Phase 2
• Oral Decitabine Plus Ivosidenib as First Line for Older/Unfit Adult AML PatientsRecruitingNCT07507760Phase 2
• A Study to Investigate the Efficacy, Safety and Tolerability of Votoplam in Participants With Huntington's DiseaseRecruitingNCT07326709Phase 3
• Evaluating the Impact of Maridebart Cafraglutide on Cardiovascular Outcomes in Participants With Atherosclerotic Cardiovascular Disease and Overweight or ObesityRecruitingNCT07037433Phase 3
• A Clinical Study of Sotatercept (MK-7962) in People With Pulmonary Arterial Hypertension (MK-7962-038)RecruitingNCT07218029Phase 3
• BioNortHealth ProjectRecruitingNCT07833787
• A Study to Assess the Long-term Safety and Efficacy of a Subcutaneous Formulation of Efgartigimod in Adults With Active Idiopathic Inflammatory MyopathyEnrolling by invitationNCT05979441Phase 3
• Effect of Patiromer in Children Under 12 Years of Age With High Blood Potassium LevelsRecruitingNCT05766839Phase 2