Nyandiwa

Researchers are evaluating the long-term safety and effectiveness of etavopivat, a new oral medicine being developed to treat inherited blood disorders such as sickle cell disease and thalassemia. These disorders affect hemoglobin, the protein responsible for carrying oxygen in the body. This phase 3 study aims to monitor how well etavopivat works and its safety profile over an extended period. Participants will receive one of three forms of etavopivat (A, B, or C) as oral doses. The study is open-label and multicenter, involving adults, adolescents, and children who have previously completed treatment in an etavopivat parent study and continue to benefit clinically. The treatment period can last up to 264 weeks but may end earlier if etavopivat is approved in the participant's country. During the study, researchers will track the number of treatment-emergent adverse events and adverse reactions for each participant by indication and age group from baseline through the end of the study, which can last up to 316 weeks. Participants' safety and response to long-term treatment will be closely monitored throughout this period.

Researchers are evaluating the safety and effectiveness of astegolimab compared to a placebo in adults aged 40 to 80 years who have chronic obstructive pulmonary disease (COPD). The study focuses on participants who are former or current smokers with a history of frequent COPD flare-ups. This phase III trial aims to determine how well astegolimab reduces moderate and severe COPD exacerbations over one year. Participants will be randomly assigned to receive either subcutaneous astegolimab every two or four weeks or a placebo every two weeks. All participants will continue their optimized COPD maintenance treatments, which may include combinations of inhaled corticosteroids, long-acting beta-agonists, and long-acting muscarinic antagonists. Study treatments will be administered over a 52-week period. Throughout the study, researchers will monitor the annual rate of moderate and severe COPD exacerbations. Participants will undergo lung function tests, chest imaging, and assessments of breathlessness and lung health. The study will also carefully track the safety of the treatments, including any infections or heart-related problems. The total participation time is 52 weeks, during which the effectiveness and safety of astegolimab will be evaluated.

Researchers are evaluating how well etavopivat works to reduce the number of vaso-occlusive crises (painful blood vessel blockages) in adolescents and adults living with sickle cell disease. The study also aims to assess if etavopivat can decrease organ damage, improve exercise tolerance, and reduce fatigue. This is a global Phase 3 study involving participants aged 12 years and older with confirmed sickle cell disease. The study is randomized, double-blind, and placebo-controlled to ensure accurate evaluation of the treatment effects. Participants will receive either etavopivat or a matching placebo by mouth. Which treatment they receive is determined randomly. The study will last about two years, during which participants will take the assigned medication and be monitored closely. Etavopivat is an investigational drug currently under evaluation in multiple studies for sickle cell disease. During the study, participants will have regular assessments including documentation of vaso-occlusive crisis events, blood tests, and physical evaluations. Researchers will track the number of crises that require medical attention over a 52-week period, as well as measures of organ health, exercise ability, and fatigue. Safety and overall health will be monitored throughout the study, with the total participation time lasting approximately two years.

Researchers are evaluating etavopivat, a once-daily oral medicine, in children and adolescents with sickle cell disease. This phase 1/2 study aims to understand the safety of etavopivat and how it behaves in the bloodstream, while also exploring potential benefits for patients. The study focuses on pediatric patients aged from 6 months to under 18 years with confirmed sickle cell disease and severe symptoms. Participants will receive etavopivat tablets by mouth once daily for a continuous 96-week treatment period. After completing treatment, there will be a final study visit four weeks later to assess any lasting effects. The study includes monitoring drug levels in the blood at various points to measure how etavopivat is processed by the body. During the study, participants will have regular assessments to monitor safety and treatment effects, including lab tests to measure drug concentration, and tracking of any side effects or adverse events. Researchers will observe the number of dose changes, interruptions, and early discontinuations throughout the 24-week primary period and beyond. The total study duration includes the 96-week treatment and a 4-week follow-up, with comprehensive monitoring of health status and medication impact.

Researchers are investigating the safety and effectiveness of crizanlizumab compared to a placebo in adolescents and adults aged 12 years and older who have Sickle Cell Disease and experience frequent vaso-occlusive crises (VOCs). This phase III, multicenter, randomized, double-blind study includes patients who have had between 4 and 12 healthcare professional-managed VOCs in the past year. Participants may or may not be taking hydroxyurea or hydroxycarbamide therapy alongside the study treatment. Participants will be randomly assigned in a 2:1 ratio to receive either crizanlizumab at a dose of 5 mg/kg or a placebo, both given as intravenous infusions. The randomization is stratified based on whether they are using hydroxyurea/hydroxycarbamide and by geographic region (South America, North America, and sub-Saharan Africa). Crizanlizumab and placebo are provided in single-use vials for infusion. Treatment will be monitored over a planned period of at least 52 weeks. Throughout the study, participants will be closely monitored for the number of VOCs that require healthcare professional management, including those handled in a healthcare facility or remotely, over one year. Medical history, laboratory tests, and other assessments will be used to document VOCs and evaluate safety. Participants who are on hydroxyurea/hydroxycarbamide or erythropoietin stimulating agents must maintain stable doses during the study. The study aims to assess both the rate of VOCs and the overall safety profile of crizanlizumab in this patient population.

Access to safe drinking water remains a major challenge for rural households in developing countries, contributing to millions of deaths worldwide. This research evaluates a program that provides free dilute chlorine solution coupons to pregnant women through health clinics, aiming to improve child health by reducing illnesses such as diarrhea, fever, and cough. The study is a large-scale randomized controlled trial conducted in collaboration with health surveillance sites and the Kenya Medical Research Institute (KEMRI). Participants are divided into two groups: one group receives monthly coupons for free chlorine solutions redeemable at health facilities, while the control group does not receive these coupons. The program's impact is assessed over time by monitoring chlorine use and health outcomes. During the study, researchers collect data on verified chlorine presence in drinking water at 6, 12, 18, 24, 30, and 36 months after the program starts. They also track child health indicators, including self-reported illness rates, clinic visit frequency, child mortality, and verbal autopsies for deceased children. This comprehensive monitoring helps evaluate both the health effects and the program’s sustained use over three years.