253 Clinical Trials for Various Conditions
Globally, respiratory syncytial virus (RSV) is the leading cause of lower respiratory tract disease (LRTD) in infants. Pfizer has developed ABRYSVO-a bivalent RSV prefusion F protein-based vaccine (RSVpreF) composed of two prefusion F proteins to protect against both RSV-A and RSV-B. In the United States, ABRYSVO has been approved and recommended for active immunization of pregnant individuals from 32 0/7 to 36 6/7 weeks' gestational age for the prevention of LRTD and severe LRTD caused by RSV in infants from birth through 6 months of age. To generate critical evidence to support vaccine policy and implementation, Pfizer will collaborate with University of Pittsburgh to study vaccine effectiveness (VE) of ABRYSVO vaccination during pregnancy against RSV-associated outcomes in infants. The study will take place in a real-world population in Western Pennsylvania over multiple seasons, beginning in the 2023-2024 season, and will use a test negative design (TND approach). There will be no active enrollment of study participants, no direct contact with study participants, and no collection of any primary data outside of the Standard of Care (SOC). This study will use a TND to evaluate real-world VE of maternal ABRYSVO against RSV-associated outcomes in infants. Additionally, we will describe RSV-associated medically-attended visits for infants exposed to ABRYSVO and Beyfortus (monoclonal antibody (MAB) administered to babies up to 24 months for protection against RSV).
Respiratory Syncytial Viruses
The goal of this clinical study is to check if obeldesivir (ODV; GS-5245) is safe and well-tolerated by children with respiratory syncytial virus (RSV) infection. It will also look at how well ODV helps reduce the time it takes for children to feel better and for their RSV symptoms to improve. The primary objectives of this study are: a) to evaluate the safety and tolerability of ODV in pediatric participants with RSV infection; b) To evaluate the efficacy of ODV on time to alleviation of targeted RSV symptoms in pediatric participants with RSV infection.
RSV Infection
The primary purpose of this study is to observe how viral load and titer change over time in participants with RSV and how data from hospitalized participants compares with data from non-hospitalized participants.
RSV Infections
The aim of this study is to evaluate the safety and immunogenicity of a human metapneumovirus (hMPV) / respiratory syncytial virus (RSV) mRNA vaccine candidate encapsulated in a lipid nanoparticle (LNP) based formulation (hereafter referred to as hMPV/RSV vaccine) for the prevention of lower respiratory tract disease (LRTD) caused by hMPV and/or RSV among adults aged 60 years and older. Overall, the study is designed to address the following goals: * Assess the safety profile of the candidate formulations. * Describe the immunogenicity profile of the candidate formulations. * Select the vaccine formulations (dose) for future development. * Assess the safety and immunogenicity of a booster vaccination of the selected formulation administered 12 months after the primary vaccination in a subset of the study population. The study duration is as follows: -Six months each for the Sentinel and Main Cohorts; up to 12 months for the Expansion Cohort, and 12 additional months for the Booster Cohort Treatment duration: * Stage 1 Sentinel Cohort: 1 intra-muscular (IM) injection. Participants will be followed for 6 months post vaccination * Stage 1 Main Cohort: 1 IM injection. Participants will be followed for 6 months post vaccination * Stage 2 Expansion Cohort: 1 IM injection. Participants in the selected formulation arm, and participants in the Licensed RSV vaccine arm will be followed for 12 months post-vaccination; the remainder of the participants will be followed for 8 months post-vaccination * Stage 2 Booster Cohort: 1 IM injection 12 months post-primary vaccination. Participants will be followed for 12 months post-booster vaccination
Human Metapneumovirus Immunization, Respiratory Syncytial Virus Immunization
The purpose of this research study is to try to see whether an experimental drug, PUL 042 Inhalation Solution (PUL 042), is effective in reducing the severity of lung infections in patients with hematologic malignancies and recipients of hematopoietic stem cell transplantation with documented viral infections due to PIV, hMPV, or RSV. PUL-042 or a placebo will be administered 3 times over a 6-day period. The total duration of the study will be approximately 30 days.
Hematologic Malignancies, Hematopoietic Stem Cell Transplant (HSCT)
The goal of this clinical study is to learn more about the study drug, obeldesivir (ODV; GS-5245), and how safe and effective it is in treating nonhospitalized adults with acute respiratory syncytial virus (RSV) infection. The researchers want to see if obeldesivir can help participants' symptoms get better faster. The primary objectives of this study are to evaluate the efficacy of ODV in reducing the duration of symptoms and to evaluate the safety and tolerability of ODV in nonhospitalized adult participants with acute RSV infection.
RSV Infection
The purpose of this study is: * To investigate the optimal timing for revaccination after the initial RSVPreF3 OA vaccine dose, * To evaluate the long-term immune persistence and safety up to 5 consecutive RSV seasons (approximately 60 months) of a single dose of RSVPreF3 OA vaccine, * To give the opportunity to participants who received only placebo in the RSVOA=ADJ- 006 study, to receive a dose of the RSVPreF3 OA vaccine and collect additional safety information.
Respiratory Syncytial Virus Infections
This study is a Phase III, randomized, single-blind, placebo-controlled, multi-center study to be conducted in healthy infants and toddlers which will be enrolled at approximately 6 months of age (Cohort 1) and approximately 12 months of age (Cohort 2). The primary objective of the study will be to assess non-inferiority of the RSV infant and toddler (RSVt) vaccine antibody response when administered concomitantly with routine pediatric vaccines at 6 months of age (Diphtheria and Tetanus Toxoids and Acellular Pertussis, Inactivated Poliovirus, Haemophilus b Conjugate and Hepatitis B Vaccine \[Vaxelis® or Pentacel® and Recombivax HB®\] Prevnar 20®, and RotaTeq®), and 12 months of age (M-M-R II, VARIVAX, and Prevnar 20 or per local country recommendations) compared to when administered non-concomitantly.
RSV Immunization
The aim of this study is to demonstrate the immune response and to evaluate safety of the RSVPreF3 OA investigational vaccine in non-immunocompromised adults 18-49 years of age (YOA), who are at increased risk (AIR) for respiratory syncytial virus (RSV) disease, compared to older adults (OA) (\>=) 60 YOA and above
Respiratory Syncytial Virus Infections
This study will assess the immunogenicity, safety and reactogenicity of the RSVPreF3 OA investigational vaccine when it is co-administered with a COVID-19 messenger ribonucleic acid (mRNA) vaccine (Omicron XBB.1.5), compared to administration of the vaccines separately in adults aged 50 years and above.
Respiratory Syncytial Virus Infections
This study is a phase III, randomized, observer-blind, placebo-controlled, multinational, multi-center study to be conducted in approximately 6300 children 6 months to \< 22 months of age. The purpose of the study is to evaluate the efficacy, immunogenicity, and safety of Respiratory Syncytial Virus Toddler (RSVt) vaccine administered by intranasal route compared to placebo. Eligible participants will be randomized in a 1:1 ratio to receive 2 intranasal administrations of either the RSVt vaccine or placebo. Study duration will be 24 months for each participant. The safety follow-up will start after the first vaccination and up to the end of the study.
RSV Immunisation
The purpose of the study is to evaluate the reactogenicity, safety, and immunogenicity of an investigational respiratory syncytial virus (RSV) vaccine, mRNA-1345, in pregnant women, and safety and immunogenicity in infants born to vaccinated mothers.
Respiratory Syncytial Virus
Part A: The purpose is to evaluate the safety, reactogenicity, and immunogenicity of mRNA-1345 in children aged 2 to \<5 years (Cohort 1) and in children at high risk of respiratory syncytial virus (RSV) disease 5 to \<18 years of age (Cohort 2) to inform the dose level selection for the next phase of development (Phase 3). Part B: The purpose is to provide surveillance for RSV disease for the next RSV season (6 months after re-enrollment) and safety follow-up for Cohort 1 participants that were enrolled and dosed in Part A.
Respiratory Syncytial Virus
The purpose of this study is to learn about the safety and effects of sisunatovir. Sisunatovir is studied for the possible treatment of Respiratory Syncytial Virus (RSV). RSV is a virus that causes lung infections with cold-like symptoms, but it can cause severe illness in some people. Sisunatovir is studied in adults: * who are not admitted to the hospital and * who have high chances of having a severe illness from RSV infection. This study is seeking participants who: * Are confirmed to have RSV. * Have symptoms of a lung infection. * Are 18 years of age or older. * Have one or more of the following which increases the chances of RSV illness: * A long-term lung disease. * heart failure. * a condition that weakens the immune system. * Are 65 years of age or older and do not have any of the conditions above Half of the participants in this study will receive sisunatovir. The other half will receive a placebo for 5 days. Placebo looks same like the study medicine but does not have any medication. Both sisunatovir and placebo will be taken by mouth. The study will compare the experiences of people receiving sisunatovir to those of the people who do not. This will help decide if sisunatovir is safe and effective. Participants will attend about 8-10 study visits over 5 weeks. During this time, they will have: * visits at the study clinic, * blood work, * swabs of the nose, * questionnaires, * a follow-up phone call.
Respiratory Syncytial Virus Infection
The main purpose of this study is to learn about the effectiveness of Pfizer's ABRYSVO vaccine. This vaccine helps to prevent infections caused by Respiratory Syncytial Virus (RSV). RSV is a virus that can cause infections in the airways. These symptoms can be cold-like symptoms, but in some cases can lead to severe symptoms or hospitalization. This study uses only healthcare data that are already collected from routine visits to healthcare providers. This means that participants will not be actively enrolled in the study and there are no study treatments. The study will look at data for about two years. This study will look at patient information from: * Adults ages 60 years and older * Adults who are eligible to receive the ABRYSVO vaccination Substudy A: * This study will assess the duration of protection of ABRYSVO in adults ages 60 years and older after completion of the original study. * The substudy will look at data from subsequent RSV seasons after the first dose of ABRYSVO for about 3 years. Substudy B: * This study will assess vaccine effectiveness of ABRYSVO after revaccination in routine use, pending ACIP recommendation for revaccination. * The substudy will look at data for about 2 years after revaccination.
Respiratory Syncytial Viruses
The study is divided into 2 parts (Part A and Part B). Part A of the study will evaluate the safety and immune response to mRNA-1345 in high-risk adults aged ≥18 to \<60 years. Part B of the study will evaluate the safety and immune response to mRNA-1345 in adults who received solid organ transplant (SOT).
Respiratory Syncytial Virus
The main purpose of this study is to evaluate the safety and immunogenicity of mRNA-1345 RSV vaccine when coadministered with a high dose (HD) quadrivalent seasonal influenza vaccine (Fluzone HD) in adults ≥65 years of age. The study will examine the impact of Fluzone HD on the immune response to mRNA-1345 against RSV-A and RSV-B, as well as the impact of mRNA-1345 on the immune response to Fluzone HD against 4 vaccine-matched Influenza A and B strains.
Respiratory Syncytial Virus
The purpose of the study is tolearn about the safety and effects of a combined vaccine for RSV and COVID-19 when given with a seasonal flu vaccine or when given alone. A combined vaccine will help to reduce the number of vaccinations given when trying to prevent respiratory infections. This study is seeking participants who: * are 65 years of age or older. * are healthy or have well-controlled chronic conditions. * in the past have received at least 3 US-authorized mRNA COVID 19 vaccines, with the most recent vaccine being an updated booster vaccine given at least more than or equal to 150 days before Visit A101 (Day 1). * have not had a flu shot in the last 120 days. * agree to be present for all study visits, procedures, and blood draws. Participants will be involved in this study for 6 months. During this time, participants will have 2 study visits at the study clinic and a 6-month telephone contact.
Healthy Participants
The purpose of this study is to assess the ability of RSVPreF3 OA investigational vaccine to generate an immune response when given in combination with PCV20 and its safety in older adults, aged ≥60 years of age.
Respiratory Syncytial Virus Infections
The primary goal of this study is to evaluate the safety and reactogenicity of multi-component vaccines mRNA-1045 (Influenza and RSV) and mRNA-1230 (influenza, RSV, and SARS-CoV-2) compared with mRNA-1010 (influenza), mRNA-1345 (RSV), and mRNA-1273.214 (SARS-CoV-2) vaccines in healthy older participants.
SARS-CoV-2, Influenza, RSV
The main goal of this observational study is to describe the health and economic outcomes associated with use of the Moderna mRNA-1345 vaccine.
Respiratory Syncytial Virus
The purpose of this study is to assess the immunogenicity, safety and reactogenicity of the RSVPreF3 OA investigational vaccine when co-administered with the high dose quadrivalent influenza (FLU HD) vaccine in adults aged 65 years and above compared to separate administration of the vaccines.
Respiratory Syncytial Virus Infections
The main purposes of Part A of this study are to evaluate the safety, tolerability, and immunogenicity of mRNA-1345 coadministered with a seasonal influenza vaccine (Afluria® Quadrivalent); to evaluate the impact of coadministered influenza vaccine on the immune response to RSV-A; and to evaluate the impact of coadministered RSV vaccine on the immune response to influenza. The main purposes of Part B of this study are to evaluate the safety, tolerability, and immunogenicity of mRNA-1345 coadministered with mRNA-1273.214; to evaluate the effect of coadministered mRNA-1273.214 on the immune response to RSV-A; and to evaluate the effect of coadministered RSV vaccine on the immune response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The main purposes of Part C (single arm, open-label) of this study are to evaluate the safety and tolerability of a booster dose (BD) of mRNA-1345 administered at 1 Year following a primary dose; to evaluate the immune response to RSV-A of a BD of mRNA 1345 administered at 1 Year following a primary dose; and to evaluate the immune response to RSV-B of a BD of mRNA-1345 administered at 1 Year following a primary dose.
Respiratory Syncytial Virus
The purpose of the study is to evaluate safety and immunogenicity of various respiratory syncytial virus (RSV) pre-Fusion (preF)-based vaccine components followed by expanded safety evaluation and durability/revaccination evaluation of the selected RSV preF-based vaccine formulation in participants aged greater than or equal to (\>=) 60 years in stable health.
Respiratory Syncytial Virus-associated Lower Respiratory Tract Disease Prevention
The main purpose of Part A of this study is to evaluate the safety and tolerability of mRNA-1345 vaccine and to demonstrate the efficacy of a single dose of mRNA-1345 vaccine in the prevention of a first episode of RSV-associated lower respiratory tract disease (RSV-LRTD) as compared with placebo from 14 days postinjection through 12 months. The main purpose of Part B of this study is to evaluate the safety, tolerability and immunogenicity of a booster dose (BD) of mRNA-1345 administered 24 months after the primary dose.
Respiratory Syncytial Virus
The purpose of this study is to assess the lot-to-lot consistency in terms of immunogenicity and evaluate the safety and reactogenicity of 3 lots of the RSVPreF3 OA investigational vaccine administered as a single dose in adults ≥ 60 years of age (YOA).
Respiratory Syncytial Virus Infections
The overarching hypothesis of the ARRC trial is that administration of Azithromycin (AZM) during acute, Respiratory Syncytial Virus (RSV)-induced respiratory failure will be beneficial, mediated through the matrix metalloproteinase (MMP)-9 pathway.
Respiratory Syncytial Virus Infections
The purpose of this study is to evaluate the efficacy of rilematovir compared to placebo with respect to the time to resolution of respiratory syncytial virus (RSV) lower respiratory tract disease (LRTD) symptoms.
Respiratory Syncytial Virus
This study aims to evaluate the safety and tolerability of clesrovimab compared to palivizumab as assessed by the proportion of participants experiencing adverse events (AEs).
RSV Infection
This study evaluates an investigational vaccine that is designed to protect humans against infection with respiratory syncytial virus (RSV) and is administered as a nasal spray. Specifically, the study analyzes the safety of, and the immune response to, the vaccine when administered to healthy children between the ages of 6 and 24 months who are seronegative to RSV.
Respiratory Syncytial Virus (RSV)