Weimar

Researchers are evaluating the persistence of two treatments, upadacitinib UPA and tumor necrosis factor inhibitors TNFi, in adults with moderate to severe active rheumatoid arthritis RA. This observational study is conducted in Germany with about 678 participants across roughly 80 sites. The purpose is to compare how long participants continue their prescribed treatment under real-world conditions over time. Participants will receive either UPA or TNFi treatment as prescribed by their doctors, following local labels and standard care practices. Treatment decisions were made before joining the study and are independent of recruitment. The study will observe participants for up to 24 months to assess retention rates on these treatments. During the study, participants will be monitored regularly according to local care standards. Researchers will collect data on how long participants stay on their assigned treatment, focusing on retention rates over approximately 24 months. Study participation may last up to two years, with recruitment expected to take about 24 months, resulting in a total study duration of about 48 months.

Researchers are evaluating the effectiveness and safety of a subcutaneous treatment using one cycle of cladribine for patients with hairy cell leukemia who need treatment. This study focuses on patients who are either untreated or have been previously treated only with alpha-interferon. The goal is to determine the rate of complete remission and to assess whether a second cycle of treatment benefits those with a non-optimal response, defined as detectable residual disease or partial remission four months after the initial treatment. Participants receive cladribine at a dose of 0.14 mgkg body weight administered subcutaneously as a bolus injection once daily for five consecutive days. After four months, remission status is evaluated. Patients showing non-optimal response may be considered for a second treatment cycle. This phase 23 trial is designed to optimize therapy for hairy cell leukemia by closely monitoring treatment response and toxicity. During the study, participants undergo evaluations including disease status assessment through bone marrow and blood tests, with a focus on remission rates four months post-treatment. Researchers track complete remission rates and monitor for residual disease. Safety is also monitored by assessing potential toxicities. Participants general health status and other laboratory tests are reviewed to ensure eligibility and ongoing suitability for treatment throughout the study period, which spans several months with follow-up assessments.