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Fine particulate matter (PM2.5) is a type of air pollution made up of extremely tiny particles that can harm our health. Because PM2.5 particles are so small, they can travel deep into the lungs when inhaled. Exposure to PM2.5 can worsen asthma, cause breathing problems, increase the risk of heart attacks, and lead to early death, especially for people with existing heart or lung conditions. In California's Bayview Hunters Point (BVHP), a San Francisco community already facing high levels of air pollution and health impacts, sources of PM2.5 include industrial activity, commuter traffic, heavy-duty diesel trucks, freight trains, and port and maritime activities. The Reducing Exposure with Air Cleaners and Technology (REACT) Study is a partnership between University of California (UC) Berkeley, UC San Francisco, and Brightline Defense. The goal is to see if air cleaners (also called air purifiers) can help reduce indoor PM2.5 levels and improve respiratory health. For this study, the investigators will be recruiting 100 households in BVHP to participate. In each home, indoor PM2.5 levels and the health status of household members who are 13 years old or older and have asthma or chronic obstructive pulmonary disease (COPD) will be monitored. Each home will be part of the study for 90 to 120 days, depending on scheduling. Households must reside in BVHP for the duration of the study and not have used an air cleaner in their home within the last 6 months. On Day 1, each household will receive a PurpleAir indoor air quality monitor to measure PM2.5 levels in their home. * For the first 30 days, the investigators will measure the home's normal air quality (baseline). * After 30 days, each household will receive an air cleaner with information about how to best use it. * At that point, a PM2.5 indicator light will be turned on for half of the PurpleAir monitors. For the other half, indicator light will be kept turned off. This helps the investigators study whether seeing the air quality in real time changes how people use the air cleaner. * For the next 30 days, indoor PM2.5 levels will continue to be monitored. How often the air cleaner is used will also be tracked with smart plug data loggers. * After 60 days, more training and support will be offered to all participants and monitoring will continue over the final 30 days of the study.

Depressive disorders are highly prevalent among older adults with asthma and are associated with poor asthma outcomes. The overall objective of this study is to integrate an asthma self-management support program that the research team previously developed with cognitive behavioral therapy (CBT) for adherence and depression for older adults with uncontrolled asthma and a comorbid depressive disorder. The research team will conduct a pilot randomized controlled trial to assess the feasibility and preliminary impact of the intervention on asthma and depression outcomes.

The purpose of this clinical study is to learn about the safety and effects of the study medicine (called tilrekimig) for the potential treatment of severe asthma. Asthma is a condition that makes it challenging to breathe, which negatively impacts the quality of life of people who are affected. The study is seeking participants who: * Have a history of severe asthma for at least 12 months * Have had at least 2 asthma attacks (also known as exacerbations) within the last 12 months All participants will be given shots of study medicine or a placebo at the study clinic. Tilrekimig or the placebo will be given about every 4 weeks during the study. The study will compare the experiences of people receiving tilrekimig to those people who receive the placebo. This will help determine if tilrekimig is safe and effective.

The goal of this clinical study is to learn how different temperature and humidity conditions affect breathing, lung function, exercise capacity, symptoms, and other physical responses in children and youth aged 11 to 18 years with asthma, compared with age- and sex-matched children and youth without asthma. The main questions it aims to answer are: * How do different temperature and humidity conditions affect lung function, breathing symptoms, exercise capacity, and physiological responses in children and youth with asthma? * Do children and youth with asthma respond differently to these environmental conditions than children and youth without asthma? * Do sex and gender influence these responses? Researchers will compare children and youth with asthma to age- and sex-matched children and youth without asthma to see if temperature and humidity exposures have different effects on breathing, exercise performance, symptoms, and physiological responses. Participants will: * Attend two study visits in a climate-controlled chamber. * Be exposed to hot, cold, and varying humidity conditions for short periods of time. * Complete breathing tests and exercise testing before, during, and after each exposure. * Have symptoms, physical activity, and physiological responses monitored throughout the study.

Primary Objective: The primary endpoint is a clinically significant improvement in tolerance to inhaled methacholine (PD20). Secondary Objectives: 1) To determine if oral daily ginger extract intake - decreases fractional excretion of nitric oxide; decreases blood eosinophilia; decreases asthma-associated cytokines in serum; decreases medium chain fatty acids; improves asthma symptoms; and 2) Establish pharmacokinetic parameters of biologically active components of ginger in adult asthmatics.

The goal of this clinical trial is to evaluate a prototype wearable stethoscope designed to record lung sounds and assess asthma control in children and adolescents with asthma aged 4 to 17 years who are able to perform spirometry. The study aims to determine whether the prototype wearable stethoscope can accurately detect clinically meaningful changes in lung sounds associated with asthma control and response to bronchodilator treatment. The main questions it aims to answer are: * Does the prototype wearable stethoscope demonstrate agreement with recordings obtained from commercially available Thinklabs One Digital Stethoscopes in identifying normal and abnormal lung sounds? * Are lung sounds detected by the prototype wearable stethoscope associated with asthma symptom control as measured by the Childhood Asthma Control Test (cACT) or Asthma Control Test (ACT) Researchers will compare recordings obtained from the prototype wearable stethoscope with recordings obtained from FDA-cleared Thinklabs One Digital Stethoscopes to evaluate the prototype device's ability to detect abnormal lung sounds and changes in lung sounds following bronchodilator treatment.

The study aims to demonstrate the superiority of GSK5784283 compared to placebo in reducing the annualized rate of clinically meaningful asthma exacerbations.

The study aims to demonstrate the superiority of GSK5784283 compared to placebo in reducing the annualized rate of clinically meaningful asthma exacerbations.

The purpose of this study is to compare how two different formulations of the study medicine (GSK5784283) move through the body over time (pharmacokinetic \[PK\] study) in healthy adults. The aim of the study is to see how the body processes GSK5784283 and determine if the study medicine is safe, how well it is tolerated by the body and if the study medicines being tested work in the body in the same way.

This study is aimed at assessing depemokimab as an add-on medicine for the treatment of asthma with type-2 inflammation in participants of 6 to 11 years of age. This study will test how the body processes depemokimab, how the drug works in the body, and its safety and tolerability.

This study aims to determine whether an extra virgin olive oil-based water (EVOOW) mixture removes more fluticasone propionate (FP) from the mouth than water alone. More effective removal of residual FP deposits may help reduce the risk of complications associated with inhaled corticosteroid use, including obstructive sleep apnea (OSA), oral candidiasis (thrush), and speech and swallowing dysfunction. Participants will attend two separate testing visits, during which they will rinse and gargle with either EVOOW or water, after receiving 1 puff if fluticasone propionate. The visits will be scheduled 7-10 days apart. Total participation will last up to 3 weeks.

The purpose of this study is to learn about the safety of a new study medicine called PF-08103402 in healthy adults (do not have disease) and or in adults with mild-to-moderate asthma. This is the first time the study medicine is being given to people. For Parts A, B, C, D and F, the study is seeking participants who: * Are healthy (do not have disease) males or females who can no longer have children, * Are 18 to 65 years old, * Have a body mass index (BMI) of 16 to 32 kilograms per meter squared and a body weight of more than 50 kilograms (110 pounds). Body mass index is a way to measure body fat by using a person's height and weight For Part A (optional group or cohort 3: Japanese participants only): * A body weight of more than 45 kilograms (100 pounds). * Have 4 biological Japanese grandparents who were born in Japan. For Part E only: * Adults with a documented history of asthma (confirmed by a doctor) for at least 12 months before entering the study. * Have a body mass index (BMI) of 16 to 35 kilograms per meter squared and a total body weight of more than 50 kilograms (110 pounds). The study has six parts: Part A, Part B, Part C, Part D, Part E and Part F. The study medicine will be taken as a suspension or tablet by mouth 1 time a day (except in Parts B and E where it will be taken 1 time a day for 14 days) at the study clinic. The study will help understand: * how the body processes the study medicine in healthy participants (Parts A and B), * how much of the study medicine gets into the bloodstream and if food affects the amount of study medicine in the blood in healthy participants (Part C), * how the study medicine is broken down and leaves the body in healthy participants (Optional Part D), * how the study medicine is processed in adults with mild-to-moderate asthma (Optional Part E), * if taking the study medicine together with another medicine affects how each medicine is processed by the body in healthy participants (Optional Part F). Participants will take part in the study for about 10 weeks (Parts A and F), 12 weeks (Part B), 9 weeks (Parts C and D), and 16 weeks (Part E). During this time, they will have 2 study visits at the study clinic and up to 28 overnight stays (Part A), 18 overnight stays (Parts B and E), 10 overnight stays (Part C), 11 overnight stays (Part D), and 16 overnight stays (Part F). The study team will also call participants 1 time over the phone at the end of the study to assess how they are doing. Study measurements will be taken by body examination, monitoring side effects, blood and urine tests, heart tests (ECG), vital signs (blood pressure, pulse and respiratory rate), questionnaires (Parts C and E), stool samples (Part D only), and breathing tests (Part E only).