Nagaoka

Researchers are investigating new treatments for rheumatoid arthritis (RA), a condition where current therapies like methotrexate (MTX) may not fully control symptoms for many people. This Phase 2b study evaluates a medicine called tulisokibart to see if it can better reduce RA symptoms in individuals already taking MTX. The trial aims to determine if one or more doses of tulisokibart work better than a placebo, which looks like the medicine but contains no active drug. The study includes a 12-week period where participants receive either tulisokibart or a placebo by subcutaneous injection while continuing their MTX treatment, which can be given by injection or orally. Following this, there is a long-term extension lasting 116 weeks, composed of a 44-week main extension and a 72-week optional extension, to further assess the medication's effects and safety over time. Participants will undergo assessments to measure treatment response, including the American College of Rheumatology 20% response criteria at week 12 to gauge symptom improvement. Throughout the study, researchers will monitor for safety and effectiveness, with evaluations extending through the long-term extension periods, totaling over two years of participation.

Researchers are evaluating the safety and effectiveness of SAR441566 in adults with moderate to severe Crohn's Disease in this phase 2, multinational, randomized, double-blind, placebo-controlled study. The main goal is to compare different doses of SAR441566 against a placebo to see how well they work in treating Crohn's Disease. The study involves participants who have had a confirmed diagnosis of Crohn's Disease for at least three months and have shown moderate to severe symptoms. Participants will take either SAR441566 tablets or matching placebo tablets orally during the study. The study begins with a 4-week screening period, followed by a 52-week main treatment phase that includes 12 weeks of induction treatment and 40 weeks of maintenance treatment under double-blind conditions. After this, a 2-week follow-up is conducted for those not entering the long-term safety study. Eligible participants may join an open-label phase lasting up to 40 weeks, but the combined time in maintenance and open-label phases will not exceed 40 weeks. During the study, participants will undergo assessments including endoscopy to measure response at week 12. Researchers will monitor symptoms, stool frequency, and abdominal pain scores to evaluate treatment effects. Safety will be tracked throughout the study, including a follow-up after treatment ends. The total study duration for participants can be up to 59 weeks, with careful monitoring to ensure accurate evaluation of SAR441566's impact on Crohn's Disease.

Researchers are evaluating the safety and effectiveness of duvakitug in people with moderately to severely active Ulcerative Colitis (UC). This multinational, multicenter, randomized, double-blind, placebo-controlled Phase 3 study aims to see if duvakitug can help achieve clinical remission in this condition. The study targets participants aged 16 to 80 years with a confirmed diagnosis of active UC for at least 3 months who have not responded well or are intolerant to other treatments. Participants will receive either duvakitug or a placebo as a solution injected under the skin (subcutaneous injection). The study includes up to 35 weeks with multiple periods: a screening period, a 12-week induction phase (either open-label or randomized), a 12-week extended induction for those who do not respond initially, and a 45-day follow-up for those not continuing into the maintenance study. During these phases, participants may have up to 8 to 15 on-site visits depending on their sub-study group. Throughout the study, participants will be monitored closely with scheduled visits for assessments including clinical evaluations related to UC activity and response to treatment. The main outcome measured is the proportion of participants who achieve clinical remission by week 12. Safety and tolerability will also be tracked during and after the treatment period, with follow-up visits to ensure participant well-being.

This research observes patients with Paroxysmal Nocturnal Hemoglobinuria who are treated with Fabhalta capsules. It is a multicenter, single-arm, non-interventional study designed to monitor drug use and safety over time. The study uses a central registration and all-case surveillance system to collect data. Participants will be observed for 48 weeks after starting Fabhalta treatment. If treatment stops within this period, any adverse events and use of other medications will be tracked up to 30 days after the last treatment day. There are no additional interventions or comparison groups in this study. During the study, researchers will monitor the occurrence of infections and other adverse events through case report forms. Participants' health and drug usage will be recorded throughout the observation period. The total participation lasts for 48 weeks, focusing on safety and drug use in real-world settings.