Rheumatoid Arthritis (RA)

118

Review clinical trials related to Rheumatoid Arthritis (RA). Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Recruiting

Controlling Hyperactive Immunity With Long-lived Lymphocytes

This study is a Phase 1/2, open-label clinical trial to test an experimental treatment called QEL-005 in adults with two autoimmune conditions: diffuse cutaneous systemic sclerosis (dcSSc) and difficult-to-treat rheumatoid arthritis (D2TRA). The main goals are to find out whether QEL-005 is safe, how well people tolerate it, and whether it may help reduce disease activity or improve symptoms. QEL-005 is made from a participant's own white blood cells (autologous cells). These cells are collected and then changed in a laboratory using genetic methods to create specialized immune cells called CAR-T regulatory cells that target a protein on B cells called CD19. These modified cells are then given back to the participant by intravenous (IV) infusion. To take part, eligible participants will first have a procedure called leukapheresis, where some of their white blood cells are removed from the blood. The study team will use these cells to manufacture QEL005. After QEL005 is ready, participants will receive an IV infusion of their modified cells, stay in hospital overnight for monitoring, and will then be followed closely in the clinic. Throughout the trial, participants will have regular safety checks, which may include blood tests, imaging scans, questionnaires about symptoms and daily functioning, and biopsies taken from involved tissues, to help understand how QEL005 is working in the body. Detailed follow up will be for 1 year after QEL-005 infusion, and there is long-term follow up for a total of 15 years, which is standard for cell therapies. The information from this Phase 1/2 study will help determine an appropriate dose and dosing schedule of QEL005 for future studies.

Participants needed: 16
Trial details
Phase: Phase 1, Phase 2Age: 18+Biological sex: AllType: InterventionalSponsor: Quell Therapeutics LimitedUpdated: Aug 21, 2026Locations: 10
Eligibility criteria

Participants must be at least 18 years of age at the time of signing the informe... [+17]

Presence of a significant medical condition(s), or clinically significant labora... [+11]

Status: Recruiting

Twenty-four Hour Movement Behaviors and Atherosclerotic Risk

This observational study aims to investigate how 24-hour movement behaviors are associated with atherosclerotic risk in adults with rheumatoid arthritis. These behaviors include physical activity, sedentary behavior, and sleep. The main questions it aims to answer are: * Are 24-hour movement behaviors, both individually and in combination, associated with indicators of atherosclerotic risk in adults with RA? * Do changes in 24-hour movement behaviors over 12 months relate to changes in indicators of atherosclerotic risk? Participants will: * Wear activity monitors (accelerometers) continuously for 7 days to measure physical activity, sedentary behavior, and sleep. * Answer questionnaires about their health and lifestyle. * Undergo cardiovascular assessments, body composition measurements, physical fitness tests, and blood tests to measure lipid and inflammatory profile. * Return 12 months later for follow-up assessments. The researchers hope this study will improve understanding of how daily movement behaviors influence cardiovascular health in people with rheumatoid arthritis. The findings may help inform future recommendations to promote healthier movement behaviors and improve cardiovascular risk management in this population.

Participants needed: 150
Trial details
Age: 18-65Biological sex: AllType: ObservationalSponsor: São Paulo State UniversityUpdated: Aug 20, 2026Locations: 1Duration: 1 Year
Eligibility criteria

Medical diagnosis of rheumatoid arthritis. [+3]

Acute infectious disease at the time of assessment. [+7]

Status: Not yet recruiting

Atherosclerosis in Early Rheumatoid Arthritis Patients Using Atherogenic Index of the Plasma and Carotid Intima Media Thickness

Rheumatoid arthritis (RA) is a chronic systemic autoimmune disease primarily affecting the peripheral joints, yet its extra-articular burden particularly on the cardiovascular (CV) system has emerged as its most consequential long-term complication . Cardiovascular disease (CVD) accounts for 40% of all deaths in RA patients, making it the leading cause of mortality .This excess CV risk is estimated to be 1.5 to 2 times higher than in the general population .The overall CV risk conferred by RA has been linked in magnitude to that of diabetes mellitus, underscoring RA as an independent cardiovascular risk factor formally recognised in the 2021 European Society of Cardiology Guidelines on CVD prevention . In this context, the non-invasive detection of preclinical atherosclerosis before the onset of clinical CV events has become clinical priority. Carotid intima-media thickness (CIMT), measured by high-resolution B-mode ultrasonography, is a well-validated surrogate marker of early structural arterial wall changes that independently predicts future myocardial infarction and stroke .Multiple studies have documented significantly elevated CIMT in RA patients compared with age- and sex-matched controls; studies found higher CIMT values across all age groups in RA, with values increasing in proportion to disease severity as assessed by the Disease Activity Score in 28 joints . The atherogenic index of plasma (AIP) defined as the base-10 logarithm of the triglyceride-to-HDL-cholesterol ratio has emerged as a calculated composite biomarker reflecting lipoprotein particle atherogenicity, particularly the preponderance of small, dense LDL particles .A high AIP (\>0.21) has been independently associated with major adverse cardiovascular events beyond the predictive capacity of conventional lipid panels .

Participants needed: 70
Trial details
Age: 18-50Biological sex: AllType: ObservationalSponsor: Assiut UniversityUpdated: Aug 19, 2026
Eligibility criteria

Patients fulfilling the 2010 American College of Rheumatology / European League... [+3]

Established cardiovascular disease (coronary artery disease, prior myocardial in... [+5]

Status: Recruiting

Complementary Herbal Approach to Rheumatoid Management Study (CHARMS)

Rheumatoid Arthritis (RA) is a chronic disease characterised by symmetric, polyarticular pain and swelling, involving small joints of the hands and feet. RA can lead to irreversible joint damage without treatment, causing disability and impacting daily activities and work productivity. Some patients turn to Chinese Herbal Medication (CHM) for treatment. Since there is currently no well designed randomised controlled trial to support the 'real-world' use of Si Miao Xiao Bi Tang with anti-rheumatic drugs, such as methotrexate, the investigators are conducting a 12-week, randomised double-blinded placebo-controlled trial to determine the efficacy, safety and cost effectiveness of a modified Si Miao Xiao Bi Tang, a type of CHM, in the treatment of patients with active RA.

Participants needed: 132
Trial details
Phase: Phase 2, Phase 3Age: 21-70Biological sex: AllType: InterventionalSponsor: Singapore General HospitalUpdated: Aug 17, 2026Locations: 1
Eligibility criteria

Patients between the ages of 21 and 70 years, and diagnosed with RA by a rheumat... [+7]

Not able to provide informed consent. [+20]

Status: Not yet recruiting

Development and Evaluation of the Effectiveness of the SMART-HAND Protocol for Hand Rehabilitation in Patients With Rheumatoid Arthritis

Rheumatoid arthritis (RA) frequently affects the hand and wrist, resulting in pain, reduced joint stability, impaired proprioception, muscle weakness, and limitations in daily activities. Although conventional rehabilitation primarily focuses on range of motion and strengthening exercises, sensorimotor impairments such as proprioceptive deficits are often underaddressed. The SMART-HAND (Sensory, Massage, Approximation, ROM, Training = Strengthening + Perturbation) protocol was developed as a structured, mechanism-based rehabilitation program to improve proprioception, joint stability, motor control, and hand function. This randomized controlled trial aims to evaluate the effectiveness of the SMART-HAND protocol in individuals with RA by comparing its effects on hand function, proprioception, pain, dexterity, muscle strength, and functional performance with conventional rehabilitation and a control group.

Participants needed: 132
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Istanbul University - CerrahpasaUpdated: Aug 14, 2026
Eligibility criteria

Participants will be 18 years of age or older. [+6]

Individuals who have undergone hand surgery within the past six months. [+11]

Status: Recruiting

Integrative AI-Based Multiomic and Neurophysiological Profiling of Chronic Pain in Rheumatoid Arthritis

Rheumatoid arthritis (RA) is a chronic, systemic autoimmune disease in which pain remains the most prominent and burdensome symptom from the patient's perspective. Although the introduction of biological and targeted synthetic disease-modifying antirheumatic drugs (bDMARDs and tsDMARDs) has significantly improved the control of inflammatory activity, an estimated 20-30% of patients continues to experience persistent moderate-to-severe pain despite achieving clinical remission. This discordance between objective inflammatory markers and subjective pain perception reflects an important unmet clinical need and suggests that chronic pain in RA may become partially or fully independent of peripheral inflammation, driven instead by central sensitization and nociplastic mechanisms. The RA-PAIN-AI study is a prospective, observational, case-control study integrating clinical assessment, patient-reported outcome measures, neurophysiological evaluation, and multiomic profiling, analyzed using artificial intelligence (AI)-based methods. Two groups of adult patients with RA are enrolled: a study group of patients with active disease qualifying for biological therapy under the Polish national drug program B.33, and a control group of patients in sustained clinical remission (at least 1.5 years) under biological therapy, without clinically significant chronic pain. All participants undergo clinical assessment, standardized questionnaires, peripheral blood collection at the baseline (Visit 1) and follow-up (Visit 2) visits. Electroencephalography (EEG) is offered as an optional procedure, at the discretion of the investigator. Biological samples are analyzed using advanced multiomic technologies, including whole genome sequencing (genomics), mRNA expression profiling (transcriptomics), and measurement of circulating proteins (secretomics). All clinical, biological, and neurophysiological data are then integrated using AI methods, including dimensionality reduction, clustering, and supervised machine learning, to identify distinct pain-related patient subtypes (endotypes). The primary objective of the study is to identify and characterize clinical, neurophysiological, and multiomic signatures associated with chronic pain in RA. Expected outcomes include identification of biomarkers predictive of chronic pain persistence despite effective anti-inflammatory treatment, improved differentiation between inflammation-driven pain and pain mediated by central nervous system changes, and support for the development of more personalized, mechanism-based treatment strategies in rheumatology. The study is non-interventional: no experimental therapeutic interventions are administered, and all participants continue to receive standard clinical care. All biological analyses are performed ex vivo.

Participants needed: 100
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: 4th Military Clinical Hospital with Polyclinic, PolandUpdated: Aug 18, 2026Locations: 1
Eligibility criteria

Study Group (Active RA) [+6]

Study Group [+9]

Status: Not yet recruiting

Self-Care Education for Joint Stiffness and Functional Ability in Rheumatoid Arthritis

Rheumatoid arthritis is a chronic inflammatory autoimmune disease that may cause joint stiffness, pain, reduced mobility, and impaired functional ability. Self-care education may help patients improve their knowledge and practices related to disease management, joint protection, physical activity, exercise, energy conservation, and symptom management. This study aims to evaluate the effectiveness of a self-care educational program on joint stiffness and functional ability among patients with rheumatoid arthritis. Participants will be assigned to either a study group or a control group. The study group will receive the self-care educational program in addition to routine care, while the control group will receive routine care only. Joint stiffness and functional ability will be assessed before and after implementation of the educational program.

Participants needed: 110
Trial details
Age: 20-65Biological sex: AllType: InterventionalSponsor: Assiut UniversityUpdated: Aug 13, 2026
Eligibility criteria

The criteria for selection were: patients" age ranged between 20-65 years old; d...

Patients with severe cognitive or communication impairment. Patients with other...

Status: Recruiting

A Study of F8IL10 Intra-articular Treatment in Rheumatoid Arthritis

The aim of this study is to evaluate the safety of F8IL10 when administered by intra-articular injection and to determine the maximum tolerated dose (MTD) in order to establish the recommended dose (RD) in patients with Reumatoid Arthritis.

Participants needed: 42
Trial details
Phase: Phase 1Age: 18-80Biological sex: AllType: InterventionalSponsor: Philogen S.p.A.Updated: Aug 11, 2026Locations: 2
Eligibility criteria

Patients aged ≥18 and ≤80 years. [+14]

Presence of additional RA flares or RA-related symptoms that, in the investigato... [+23]

Status: Recruiting

Oxidative Stress and Cardiovascular Risk in Patients With Rheumatoid Arthritis

The pathogenic process underlying atherosclerosis resembles a chronic inflammatory response in which oxidative stress is involved. Similarly, oxidative stress is widely recognized to play an important role in the clinical course and pathogenesis of rheumatoid arthritis (RA). RA has been associated with accelerated atherosclerosis. This cross-sectional study will include patients with RA. The primary objective is to evaluate the association between selected oxidative stress biomarkers-serum malondialdehyde levels, superoxide dismutase, and glutathione peroxidase-and the presence of subclinical atherosclerosis and carotid arterial stiffness in patients with RA. We will subsequently assess whether these molecules are related to cardiovascular disease determinants, including inflammatory dyslipidemia, insulin resistance, and beta-cell dysfunction, which may occur in this condition. This study will further explore the relationship between oxidative stress and cardiovascular disease in RA.

Participants needed: 200
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: University of La LagunaUpdated: Aug 12, 2026Locations: 1
Eligibility criteria

Men or women who are not pregnant or breastfeeding. [+4]

Autoimmune rheumatic disease other than RA, including systemic lupus erythematos... [+8]

Status: Recruiting

A First-in-human Study of KT502 in Adult Participants With Rheumatoid Arthritis (RA)

This is a Phase 1, open-label, first-in-human study to investigate the safety, tolerability, pharmacokinetics and pharmacodynamics of KT502 administered subcutaneously to participants with Rheumatoid Arthritis (RA). The study will have 2 parts: Part A is a single ascending dose finding (SAD) and Part B is dose escalation by fractionated dosing.

Participants needed: 27
Trial details
Phase: Phase 1Age: 18-75Biological sex: AllType: InterventionalSponsor: Kali Therapeutics, Inc.Updated: Aug 11, 2026Locations: 2
Eligibility criteria

18 to 75 years old [+16]

Status: Not yet recruiting

TLL-018 in Patients With Moderate to Severe Active Rheumatoid Arthritis With Inadequate Response or Intolerance to csDMARDs

This is a randomized, double-blind, placebo-controlled parallel-group Phase II study. The study aims to evaluate the efficacy and safety of TLL-018 in adult patients with moderate to severe active rheumatoid arthritis who have inadequate response or intolerance to conventional synthetic disease-modifying antirheumatic drugs (csDMARDs).

Participants needed: 90
Trial details
Phase: Phase 2Age: 18-70Biological sex: AllType: InterventionalSponsor: Hangzhou Highlightll Pharmaceutical Co., LtdUpdated: Aug 6, 2026Locations: 1
Eligibility criteria

1 Aged 18 to 70 years inclusive, any sex; body mass index [BMI = weight (kg)/hei...

1 Evidence or diagnosis of other rheumatic diseases prior to screening (secondar...

Status: Recruiting

JAK Inhibitor Dose TAPering Strategy Study

This study aims to assess the feasibility of tapering JAK inhibitors in rheumatoid arthritis patients in low disease activity by comparing a group of patients tapering the JAK inhibitor dosage to a group of patients continuing the full-dose. Participants will: * Either take 1. JAK inhibitor dose-tapering strategy. 2. JAK inhibitor continuous therapy strategy. * Visit the clinic once every 3 months for checkups and tests * Keep a diary of their treatment intake and symptoms

Participants needed: 308
Trial details
Phase: Phase 4Age: 18-65Biological sex: AllType: InterventionalSponsor: University Hospital, ToulouseUpdated: Aug 7, 2026Locations: 24
Eligibility criteria

Aged ≥ 18 years at baseline. [+23]

Status: Recruiting

Clinical Study Comparing Diosmin vs Rebamipide as Adjuvant Therapies vs Conventional Therapy in Patients With Rheumatoid Arthritis

This study will be a randomized controlled parallel study that will be conducted on 66 patients with active rheumatoid arthritis who will be diagnosed with RA according to American College of Rheumatology (ACR)/European League Against Rheumatism (EULAR, 2010). The patients will be recruited from Outpatient Clinic of Rheumatology, Physical Medicine, Rheumatology and Rehabilitation Department, Tanta University Hospital, Tanta, Egypt. The study duration will be 3 months. The patients will be randomized into three groups: \- Group 1 (control group): will include 22 patients who will receive the conventional therapy for RA for 3 months. \- Group 2 (diosmin group): will include 22 patients who will receive the conventional therapy for RA plus 1000 mg diosmin once daily for 3 months. \- Group 3 (rebamipide group): will include 22 patients who will receive the conventional therapy for RA plus 100 mg rebamipide three times daily for 3 months.

Participants needed: 66
Trial details
Phase: Phase 2Age: 18-70Biological sex: AllType: InterventionalSponsor: Tanta UniversityUpdated: Aug 4, 2026Locations: 1
Eligibility criteria

Patients with active rheumatoid arthritis (not in remission) according to Americ... [+3]

Pregnant and lactating females. [+6]

Status: Recruiting

AlloNK®, an Allogeneic Non-genetically Modified, Cord Blood-derived NK Cell Therapy, in Combination With Rituximab, Studied in Relapsing Forms of B-cell Dependent Rheumatologic Diseases.

A Basket Trial of Refractory Rheumatoid Arthritis (RA), Sjögren's Disease (SjD), Idiopathic Inflammatory Myopathies (IIMs) and Systemic Sclerosis (SSc) subjects to evaluate the safety and efficacy of AlloNK, a non-genetically modified allogeneic NK cell, in combination with rituximab.

Participants needed: 90
Trial details
Phase: Phase 2Age: 18+Biological sex: AllType: InterventionalSponsor: Artiva Biotherapeutics, Inc.Updated: Jul 31, 2026Locations: 52
Eligibility criteria

Documented diagnosis of RA, meeting the 2010 ACR/EULAR classification criteria. [+14]

Status: Not yet recruiting

The Effect of Nicorandil on Rheumatoid Arthritis Patients

The aim of this clinical trial is to determine whether nicorandil works in minimizing disease severity in patients with rheumatoid arthritis. The study will also assess the safety and tolerability of nicorandil. The main questions it aims to answer are: * Could nicorandil improve disease severity and symptoms of rheumatoid arthritis? * Does nicorandil lower the number of times participants need to use pain relieve medications? * Does the nicorandil improve participants functionality and ability to carry out daily activity? * Does nicorandil correct disease-associated damage and inflammation? * What side effects do participants have when taking nicorandil? Researchers will compare nicorandil to a placebo (a look-alike substance that contains no drug) to see if nicorandil works to decrease symptoms and severity of rheumatoid arthritis. Participants will: * Take nicorandil or a placebo two times daily for 3 months * Visit the clinic once every month for checkups * Keep a diary of their symptoms and the number of times they use a pain reliever

Participants needed: 70
Trial details
Phase: Phase 2, Phase 3Age: 18+Biological sex: AllType: InterventionalSponsor: Ain Shams UniversityUpdated: Jul 28, 2026Locations: 1
Eligibility criteria

Adult (≥18 years). [+4]

Other autoimmune diseases [+9]

Status: Not yet recruiting

BAFF CAR-T Cells (LMY-922) for Treatment of Refractory Autoimmune Disease

Therapy with chimeric antigen receptor T (CAR-T) cells has demonstrated activity against refractory autoimmune disease, however not all disease responds or remains in response to CD19 targeted CAR-T cells. We posit that CAR-T cells expressing BAFF (BAFF CAR-T cells) can become another strategy to treat refractory autoimmune disease, even after relapse following other treatments. This phase 1 study will evaluate safe dose and provide initial signal of the activity of BAFF CAR-T cells against refractory autoimmune disease using a BAFF CAR-T cell manufacturing process with or without lymphodepletion regimen.

Participants needed: 94
Trial details
Phase: Phase 1Age: 16-75Biological sex: AllType: InterventionalSponsor: Luminary TherapeuticsUpdated: Jul 28, 2026Locations: 1
Eligibility criteria

Male or female 16-75 years of age, inclusive. [+14]

Significant disease-related complications [+19]

Status: Recruiting

Integrated Clinical Study of Traditional Chinese and Western Medicine for Refractory Rheumatoid Arthritis

To evaluate the efficacy and safety of Kunxian Capsule combined with Methotrexate and Tofacitinib in the treatment of difficult-to-treat rheumatoid arthritis through a multicenter, randomized, double-blind, placebo-controlled clinical trial, and to identify the therapeutic advantages of integrated Chinese and Western medicine for optimizing the clinical strategy of D2T RA.

Participants needed: 300
Trial details
Phase: Phase 4Age: 18-70Biological sex: AllType: InterventionalSponsor: Shanghai Guanghua Hospital of Integrated Traditional Chinese and Western MedicineUpdated: Jul 22, 2026Locations: 1
Eligibility criteria

Fully understand the purpose and requirements of the trial, voluntarily particip... [+6]

Suspected or confirmed allergy to the investigational drug (including excipients... [+31]

Status: Recruiting

Clinical Cohort Construction and Therapeutic Effect Evaluation of Integrated Traditional Chinese and Western Medicine in the Treatment of Rheumatoid Arthritis

This is a large-scale, multicenter observational study on the treatment of rheumatoid arthritis (RA) with integrated Traditional Chinese and Western medicine. The study plans to enroll at least 10,000 patients, including a minimum of 1,000 cases with difficult-to-treat RA (D2T RA) and 1,000 cases with RA-associated interstitial lung disease (RA-ILD). Through long-term follow-up, data will be collected on Traditional Chinese Medicine (TCM) syndrome characteristics, treatment plans, adverse drug reactions, and complications. Biological samples, including blood and urine, will also be collected. The research will utilize multi-omics technologies such as genomics and proteomics, combined with clinical data, to deeply explore the modern scientific connotation of the "disease-syndrome-symptom" framework in RA. The goal is to clarify the patterns and advantages of TCM syndrome differentiation and treatment. Based on these findings, a scientific and standardized efficacy evaluation system for integrated treatment will be established, and optimized treatment strategies for D2T RA and RA-ILD will be developed. The project is led by multiple national TCM clinical research centers and regional diagnostic and treatment centers, including the First Teaching Hospital of Tianjin University of TCM and Shanghai Guanghua Hospital of Integrated Traditional Chinese and Western Medicine. These institutions have mature clinical research platforms, biobanks, and databases, providing a solid foundation for the successful implementation of this study. The results of this research will provide a scientific basis for the integrated treatment of RA, promote the standardization of diagnostic and treatment protocols, and ultimately improve the overall level of RA prevention and treatment in China.

Participants needed: 10,000
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Dongyi HeUpdated: Jul 21, 2026Locations: 1
Eligibility criteria

Meet the RA classification criteria established by ACR in 1987 or the revised RA... [+6]

Severe, progressive, or uncontrolled diseases of the kidneys, liver, blood, gast... [+4]

Status: Recruiting

Dysphagia in Rheumatoid Arthritis

The primary goal of this cross-sectional study is to assess risk factors/predictors for dysphagia in RA. The secondary goals include demonstrating whether flexible fiberoptic pharyngolaryngoscopy can detect joint-affection-induced dysphagia in patients with rheumatoid arthritis (RA) and whether both oropharyngeal and esophageal dysphagia are present among these patients. The main questions it aims to answer are * What are the predictors that are associated with dysphagia via flexible fiberoptic pharyngolaryngoscopy in rheumatoid arthritis patients? * Whether flexible fiberoptic pharyngolaryngoscopy can detect joint-affection-induced dysphagia in patients with RA? * Whether both oropharyngeal and esophageal dysphagia are present in patients with RA?

Participants needed: 30
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Tanta UniversityUpdated: Jul 21, 2026Locations: 2
Eligibility criteria

Patients with Rheumatoid arthritis defined by the American College of Rheumatolo... [+1]

concomitant thyroid dysfunction. [+8]

Status: Recruiting

Safety and Immunogenicity of the Live Attenuated Tetravalent Butantan-Dengue Vaccine in Autoimmune Rheumatic Diseases

The goal of this clinical trial is to evaluate whether the live attenuated tetravalent Butantan-Dengue vaccine (Butantan-DV) is safe and capable of inducing an immune response in patients aged 12 to 59 years with autoimmune rheumatic diseases (ARDs) who are clinically stable and under low-grade or no immunosuppression, as well as in healthy volunteers matched by sex and age. The main questions it aims to answer are: Does the vaccine induce adequate seroconversion in patients with ARDs compared to healthy controls? What is the frequency and intensity of common adverse events after vaccination in ARDs patients? Does physical activity levels and nutritional status influence vaccine-induced immune response in patients with ARDs? Researchers will compare patients with ARDs to healthy controls to evaluate if the vaccine elicits similar immune responses and safety profiles. All participants will: * receive a single 0.5 mL dose of the Butantan-DV vaccine via subcutaneous injection; * undergo blood sample collection before and after vaccination (baseline, Day 42, and Day 400) to assess antibody and cellular responses; * attend follow-up visits on Days 7, 14, and 42 for safety monitoring and laboratory tests; * report any symptoms or adverse events using a standardized diary for 42 days; * be followed for up to one year for long-term safety and immunogenicity assessments. * wear a device for 14 consecutive days to assess current and habitual physical activity levels. * answer three non-consecutive 24-hour dietary recalls, including at least one weekend day to assess nutritional status. * collect blood samples one-year after vaccination to access immunogenicity and cellular response. Researcher will also perform subgroups analysis in: A viremia subgroup (50 patients and 50 healthy controls) will provide additional samples on Days 1, 7, 14, 28, 42, and-if viremia is detected-Day 68, to evaluate post-vaccination viremia and its duration. An immunogenicity subgroup (\~20% of participants, n=96) will undergo cellular immune response testing via flow cytometry to evaluate T-cell responses.

Participants needed: 477
Trial details
Phase: Phase 4Age: 12-59Biological sex: AllType: InterventionalSponsor: University of Sao Paulo General HospitalUpdated: Jul 20, 2026Locations: 2
Eligibility criteria

Age between 12 and 59 years [+9]

Prior receipt of any dengue vaccine [+16]

Status: Recruiting

The Coronary Artery Calcium and Troponins in Rheumatoid Arthritis (CAT-RA) Study

Individuals with rheumatoid arthritis (RA) have up to 2x the risk of having a heart attack compared to someone without RA. The goal of this study is to identify biomarkers that can help us do a better job of identifying individuals at risk before they develop symptoms of heart disease and start preventative treatment earlier.

Participants needed: 120
Trial details
Age: 35-79Biological sex: AllType: ObservationalSponsor: Brigham and Women's HospitalUpdated: Jul 14, 2026Locations: 3Duration: 2 Years
Eligibility criteria

RA diagnosed by a rheumatologist [+2]

Patients on a statin or with a contraindication to statin, on a cholesterol abso... [+2]

Status: Not yet recruiting

the Effect of Ginkgo Biloba on Rheumatoid Arthritis Patients

this study aims to measure The Effect of Gingko Biloba on the Clinical Outcome of Rheumatoid Arthritis Patients ,the outcomes are hsCRp,calprotectin,DAS-28,HAQ-DI

Participants needed: 50
Trial details
Phase: Phase 2, Phase 3Age: 18+Biological sex: AllType: InterventionalSponsor: Ain Shams UniversityUpdated: Jul 16, 2026
Eligibility criteria

Adult patients (older than 18 years) 2. With moderate to high disease activity d...

Status: Not yet recruiting

A Phase IIa Study of JAB-8263 in Patients With Active Rheumatoid Arthritis

This study is an open-label, multi-center Phase IIa study. The study is divided into two phases. The first phase is a safety exploration phase. Participants with active rheumatoid arthritis were enrolled and treated with JAB-8263 alone for 4 weeks. The purpose is to evaluate the safety, PK/PD characteristics and preliminary effectiveness of JAB-8263 in participants with active RA.

Participants needed: 32
Trial details
Phase: Phase 2Age: 18-75Biological sex: AllType: InterventionalSponsor: Jacobio Pharmaceuticals Co., Ltd.Updated: Jul 6, 2026Locations: 1
Eligibility criteria

Age ≥18 years old and <75 years old at the time of signing the informed consent... [+3]

Use of topical glucocorticoids within 2 weeks before the first dose of investiga... [+4]

Status: Recruiting

Medical Device for Sustained Remission in Rheumatoid Arthritis Treated With Biological Therapy

This study aims to evaluate a new tool designed to help doctors decide whether it is safe to reduce medication in patients with rheumatoid arthritis (RA) who are in remission. Rheumatoid arthritis is a chronic inflammatory disease that affects the joints, causing pain, stiffness, and reduced mobility. Many patients receive long-term treatment with biological drugs to control the disease. When the disease is well controlled (remission), doctors may gradually reduce the medication dose. However, deciding when and in whom to reduce treatment is currently based on experience and trial-and-error. The study evaluates a predictive tool (called OPTIBIO) that uses information from blood samples, genetic data, and clinical characteristics to estimate the risk that the disease will flare up if treatment is reduced. Participants in the study will be randomly assigned to one of two groups: * In one group, the decision to reduce medication will be made by their usual doctor. * In the other group, the decision will be guided by the predictive tool. The study lasts 12 months and includes several hospital visits. During these visits, participants will: * Answer questionnaires about their health and quality of life * Have physical examinations * Provide blood samples for routine tests and additional research purposes * Possibly undergo joint ultrasound (if they consent) Some additional blood samples may be stored in authorized biobanks for future research related to rheumatoid arthritis, but only if participants explicitly agree. These samples will be coded to protect personal identity and will only be used in ethically approved research projects. Participation in the study is entirely voluntary. Participants can choose which procedures they agree to and may withdraw at any time without affecting their medical care. The study may not provide direct benefit to participants, but it could help improve future treatment decisions and the overall management of rheumatoid arthritis.

Participants needed: 184
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Francisco J. BlancoUpdated: Jul 1, 2026Locations: 9
Eligibility criteria

Adults aged ≥18 years. [+4]

Patients in whom biological therapy was prescribed due to systemic manifestation... [+2]

Status: Not yet recruiting

Bioequivalence Study of SKI-O-703 in Healthy Adults Under Fed Conditions

This is an open-label, randomized, crossover Phase 1 study to evaluate the bioequivalence, pharmacokinetics, and safety of two oral SKI-O-703 drugs (test and reference) in healthy adults under fed conditions. Approximately 48 Korean and Caucasian participants will receive a single oral dose of the test drug and a single oral dose of the reference drug in a randomized sequence, separated by a washout period, with pharmacokinetic sampling and safety assessments performed throughout the study.

Participants needed: 48
Trial details
Phase: Phase 1Age: 19+Biological sex: AllType: InterventionalSponsor: Oscotec Inc.Updated: Jun 30, 2026
Eligibility criteria

Korean or Caucasian adults aged 19 years and older at screening. Caucasian: An i... [+4]

Any significant surgical/medical procedure or trauma within 4 weeks before the p... [+7]