This is a randomized, double-blind, multicenter Phase IIIb study comparing remibrutinib tablets with dupilumab injections in adults with chronic spontaneous urticaria (CSU) that is not well controlled by second-generation H1-antihistamines. Participants will receive either remibrutinib or dupilumab for 12 weeks, alongside their usual antihistamine. The goal is to see which treatment works faster and better at reducing symptoms like hives and itching. If remibrutinib is not yet available commercially after the study, participants may continue taking it in an optional extension phase.

This study aims to create a long-term Ehlers-Danlos syndrome (EDS) biorepository and clinical research database to support gene and biomolecular discovery. The repository will serve as a sustainable resource for advancing EDS-related research by collecting both clinical data and biological samples. Participants who consent will be included in the EDS registry, which stores demographic and operative information, contact details, and biological specimens for current and future studies. Enrolled patients may also choose to be recontacted for future research opportunities. The database will link participants across specialties using identifiers such as name, date of birth, and medical record number. Data collected will include information from electronic health records, such as clinical notes, diagnoses, medications, labs, imaging, anthropometric measures, and procedure reports.

The purpose of this study is evaluate safety and effectiveness of an investigational drug in adults diagnosed with chronic urticaria (hives). The investigational drug is known as BLU-808 and will be taken daily orally. Participation in the study is expected to be approximately 18 weeks.

This is a randomized, double-blind, multicenter, parallel-group Phase IIIb study with a fixed treatment period of 52 weeks. The purpose of this study is to compare BDA MDI with AS MDI on severe asthma exacerbations in adolescent participants aged 12 to < 18 years with a documented clinical diagnosis of asthma and at least one severe exacerbation in the prior year. Participants will administer randomized IMP as needed as they normally would with their own prescribed rescue inhaler.