Brandermill

Researchers are evaluating the safety and immune response of a second dose of the RSVpreF vaccine in pregnant women during later pregnancies. The study also aims to understand how long the protection lasts from a single dose given during a previous pregnancy by examining blood samples from nonpregnant participants who had the vaccine before. This Phase 3 trial involves pregnant participants and their unborn babies, as well as nonpregnant participants previously vaccinated. Pregnant participants are divided into two groups one group who previously received RSVpreF in a Pfizer trial will get a second dose, and another group will be randomly assigned to receive either RSVpreF or a placebo if no prior antibody data exists. Infants born to these participants will be followed for six months to monitor safety and antibody levels. Nonpregnant participants who received RSVpreF in an earlier trial will provide blood samples to assess the durability of their immune response without receiving additional vaccine doses. Participants will undergo safety monitoring including tracking local and systemic reactions, adverse events, and serious events during pregnancy and after birth for infants. Blood tests will measure neutralizing antibodies against RSV types A and B at birth, 3 months, and 6 months. The study includes consent procedures for both pregnant participants and infants, and nonpregnant participants will have scheduled visits for blood sample collection. The total study duration extends through infant follow-up and ongoing immune response assessments.

The BEATRIX study focuses on healthy pregnant women aged 49 or younger between 24 and 36 weeks of pregnancy to evaluate the safety and immune response of a group B streptococcus GBS vaccine. Researchers aim to understand how this vaccine works in pregnant women and their babies, assessing various safety measures and immune responses related to GBS. This study is a Phase 3, randomized, placebo-controlled, double-blinded trial sponsored by Pfizer. Participants will receive a single injection of either the GBS vaccine or a placebo saline. After birth, a subset of infants will receive routine vaccines according to each countrys immunization schedule, including vaccines for diphtheria, pneumococcal disease, and others. Some infants will have blood samples taken after completing their primary and toddler vaccine doses to evaluate immune responses. Pregnant participants will visit the study site at least three to four times, with some visits possibly conducted by phone, and may stay involved for up to 14 months, including six months after delivery. Their babies will be followed for about 12 months, with a subset participating for up to 19 months. Researchers will monitor local and systemic reactions, adverse events, and antibody levels in both mothers and infants to assess safety and immunogenicity of the vaccine throughout the study period.

Researchers are comparing the rates of surgical and minimally invasive interventions, as well as any harms, in Medicare beneficiaries treated with the MILD procedure versus those treated with interspinous process decompression IPD for lumbar spinal stenosis with neurogenic claudication. This observational study uses Medicare claims data to follow patients for 24 months after their initial procedure starting from January 1, 2017. The purpose is to evaluate outcomes between these two types of procedures without requiring prior patient enrollment or consent. The study includes two groups patients who received MILD, which is a percutaneous image-guided lumbar decompression performed under fluoroscopic guidance through a dorsal approach to the spine, and patients who received IPD, a different device-based decompression procedure. Data on reoperations and complications will be collected for both groups over a 24-month follow-up period using Medicare claims. Enrollment continues until the sponsor decides to stop. Participants involvement is passive as the study uses existing Medicare claims data. Researchers will monitor rates of harms related to the initial procedure and subsequent surgical or minimally invasive interventions over two years. No direct patient visits or interventions are conducted, and the study is exempt from institutional review board oversight. The total study duration extends to December 2026, covering cases treated since early 2017.