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Found 4 Actively Recruiting clinical trials
Actively Recruiting
Researchers are evaluating the safety and effectiveness of tezepelumab in adults aged 40 to 80 years with moderate to very severe chronic obstructive pulmonary disease COPD. This phase 3, multicenter, randomized, double-blind, placebo-controlled study focuses on participants already receiving inhaled maintenance therapy and who have experienced multiple COPD exacerbations in the previous year. The trial aims to understand tezepelumabs impact on reducing COPD flare-ups and improving lung function compared to placebo. Participants are randomly assigned to receive monthly subcutaneous injections of one of two doses of tezepelumab or a matching placebo. The treatment period lasts between 52 and 76 weeks, followed by a 12-week safety monitoring period without treatment. Throughout the study, participants continue their inhaled COPD therapies, and their health is closely tracked to assess the study drugs effects. During the trial, participants will undergo various assessments including lung function tests, questionnaires measuring respiratory symptoms and quality of life, and blood tests to monitor drug levels and immune responses. Researchers will measure the annual rate of moderate or severe COPD exacerbations and other health outcomes over the study period. Safety will be monitored throughout treatment and during the follow-up period, with visits scheduled regularly to collect data and support participant care.
Actively Recruiting
Healthy Volunteer
Researchers are studying the safety and immune response of a fifth dose of the Lyme disease vaccine called VLA15 in healthy individuals aged 7 years and older who have already received four doses of this vaccine. This Phase 3 trial compares the effects of the vaccine against a placebo saline to better understand its protection against Lyme disease. The study is randomized, placebo-controlled, and double-blinded, aiming to assess tolerability and immune response. Participants receive one injection, either VLA15 or saline, into the muscle of the upper arm at their first visit. They are randomized in a 51 ratio to either vaccine or placebo. The timing of the fifth dose varies, occurring either one or two years after the fourth dose from a previous study. The trial includes about 1712 participants and uses an independent data monitoring committee to oversee safety. During approximately 12 months of participation, individuals will attend four clinic visits. These visits include health checks, blood draws to measure immune response, and receiving the study injection during the first visit. Researchers will monitor local and systemic reactions within seven days post-injection, adverse events up to one month, and longer-term safety for up to a year. The main outcomes focus on immune responses to different parts of the vaccine and recording any side effects or new medical conditions.
Actively Recruiting
Researchers are evaluating the efficacy and safety of tozorakimab delivered under the skin in adults with uncontrolled asthma who are already using medium-to-high doses of inhaled corticosteroids. This phase IIb, double-blind, placebo-controlled study aims to find the optimal dosing range of tozorakimab in this population. The study is sponsored by AstraZeneca and uses a randomized, parallel design to compare different doses and placebo. Participants will receive subcutaneous injections of either tozorakimab at one of two dose levels or a placebo. The study arms include dosing with tozorakimab Dose 1, tozorakimab Dose 2, or placebo, administered under the skin. The treatment period lasts from 26 to 52 weeks, during which participants will be monitored for their asthma symptoms and lung function. Throughout the study, participants will undergo assessments including lung function tests such as forced expiratory volume in 1 second FEV1, asthma control questionnaires ACQ-6, quality of life questionnaires AQLQ12, and measurements of asthma exacerbations. Blood samples will be collected to measure drug levels and immune response. Safety and adherence will be closely monitored, and the primary outcome is the annualized rate of severe asthma exacerbations over the treatment period.
Actively Recruiting
Healthy Volunteer
This research aims to evaluate the safety and immune response of a new pneumococcal vaccine called PG4 in children and adolescents aged 15 months to 18 years. It compares this new vaccine to the currently used 20-valent pneumococcal conjugate vaccine 20vPnC, focusing on how both vaccines help protect against infections like pneumonia, meningitis, and ear infections caused by Streptococcus pneumoniae. The study is a phase 3 trial conducted internationally, including the United States and Puerto Rico. Participants are divided into three age groups 15 months to less than 2 years, 2 years to less than 5 years, and 5 years to less than 18 years. Within each group, participants are randomly assigned in a 21 ratio to receive a single injection of either the new PG4 vaccine or the 20vPnC vaccine. The vaccine is administered intramuscularly in the arm or thigh. The study lasts about 6 months and involves 2 clinic visits and 1 telephone follow-up. During the clinic visits, blood samples are taken to measure immune responses and participants are monitored for any side effects or adverse events. Researchers assess local and systemic reactions within 7 days after vaccination, adverse events up to 1 month, and serious adverse events up to 6 months after vaccination. The main outcomes include measuring specific antibody levels to evaluate the immune response. Participants are contacted by phone for a follow-up to check for any further side effects, ensuring ongoing safety monitoring throughout the study.