Influenza Clinical Trials

The main purpose of the study is to evaluate the safety, reactogenicity, and the humoral immunogenicity of mRNA-1010 and comparator influenza vaccines against homologous influenza A and B strains at Day 29. Read Less

The purpose of this study is to evaluate the virus-specific immune response in people who are symptomatic with confirmed influenza or COVID-19. We will study the immune response of people who have and who have not been vaccinated with the seasonal influenza and COVID-19 vaccines within the past year. All participants will have data collected and blood, saliva, and nasal swabs performed at five separate visits; 1) at study enrollment, 2) on study day 7, 3) on or between study days 10 to 28, 4) on study day 90, and 5) on study day 180. For participants who agree to the optional sub-study, bronchoscopy with bronchoalveolar lavage (BAL) and endobronchial biopsy (EBBx) will be performed once between study days 10 and 28 and once at study day 180. As part of the bronchoscopy procedure, two chest x-rays will be performed. The bronchoscopy and chest x-ray procedures are not required for participation in the study. Read Less

This study is designed to help us better understand how the immune system responds to the flu and how flu is transmitted in the environment. The ultimate goal is to develop better vaccines and drugs to protect against or fight the flu. This study will describe how the body's immune system responds to the flu virus during and after infection and how the flu virus is transmitted in the environment. The study will use a flu virus called A/Texas/71/2017 (H3N2), clade 3C3a produced specifically for clinical research in controlled conditions. The study will also assess the safety of the H3N2 influenza challenge in healthy participants. Mild to moderate symptoms are expected based on previous studies with this strain of influenza. Study volunteers will be recruited and screened from the general population of metro Atlanta through advertisements or identified from a database of research participants who have previously agreed to be contacted for future research studies. Participants will provide written consent before study participation. Up to 200 healthy adults, 18-49 years old, will be screened for participation. Eligible participants will take part in the study over 5 months. Enrolled participants will be admitted to Emory University Hospital during which time they will receive the influenza virus in the form of a spray in the nose or exposure to infected participants followed by an 8-12 day inpatient stay for observation. Follow-up outpatient visits will take place at the Hope Clinic of the Emory Vaccine Center. Participants will receive compensation (pro-rated for all visits completed) for their time and effort. There will be no costs to participants as a result of being in the study. Read Less

Dime La VerDAD is an innovative social media capacity-building program that empowers promotores de salud to debunk vaccine misinformation through the use of personal narratives on social media. The core of the implementation strategy consists of augmenting training and self-efficacy for natural community champions, "promotores de salud" from the Hispanic community as trusted messengers to debunk vaccination misinformation. The study will leverage existing community relationships in Chicago and a first of its kind misinformation curriculum to debunk misinformation in communities served by participating promotores de salud. Dime La VerDAD (Verify, Debunk, and Disseminate) is an innovative social media capacity-building program based on theoretical frameworks related to health communication that empowers promotores de salud to debunk vaccine misinformation through the use of personal narratives on social media. This mixed methods study will use a rigorous stepped wedge design to 1) deliver a scalable program of science communicators using an adapted curriculum grounded in infodemiology, 2) evaluate how debunking misinformation is perceived on social media, and 3) discern how use of personal narratives to enhance science communication can lead to changes in opinions and behavior (vaccination rates) about COVID and influenza vaccines among Chicago's predominantly Hispanic communities. Read Less

The purpose of this study is to evaluate the pre-treatment and single-dose post treatment susceptibility of baloxavir marboxil in participants aged 1 to \<12 years with influenza. Read Less

The goal of this prospective, interventional, single-center study is to assess whether the early detection of Influenza with smart wearable device algorithms and alerting, rapid testing, and subsequent Baloxavir treatment demonstrate better post-infection outcomes versus publicly available- and Centers for Disease Control (CDC)-derived national statistics for equivalent household populations as well as pediatric kidney, heart, liver, lung transplant recipients and waitlisted patients. Read Less

This phase II trial studies the effect of baloxavir in combination with oseltamivir in treating severe influenza infection in patients who have previously received a hematopoietic (blood) stem cell transplant or have a hematological malignancy. Baloxavir is an antiviral drug that inhibits the growth of influenza virus, reduces viral load and prevents further influenza infection. Osetamivir is an antiviral drug that blocks enzymes on the surfaces of influenza viruses, interfering with cell release of complete viral particles. Giving baloxavir in combination with oseltamivir may shorten or decrease the intensity of influenza infection compared to oseltamivir alone. Read Less

This study will be conducted as a prospective cohort study, enrolling all eligible women in their first trimester of pregnancy during a baseline visit during week 6-13 of pregnancy at Government Medical College Hospital, Nagpur. The Hospital provides primary, secondary, and tertiary care and the obstetric department delivers about 10,000 babies a year. The hypothesis is that co-infection of other respiratory viruses (ORV), particularly COVID-19 and Influenza increases the risk of adverse pregnancy outcomes in mothers and babies and could address the current standard of care in India to not vaccinate pregnant women during pregnancy, by either encouraging vaccination against both viruses before planning a pregnancy or during pregnancy based on global data supporting the safety of this strategy. Read Less

This study plans to learn more about whether a stakeholder-informed, standardized inpatient vaccination program will increase influenza vaccination rates of hospitalized children across US pediatric health systems. The first part of the study is to form a multidisciplinary team of stakeholders, including parents, providers, nurses, pharmacists, informaticists, data analysts and communication experts across three sites in synthesizing a best practice implementation guide for an inpatient influenza vaccination program, which will then be piloted at these three sites. Read Less

This study evaluates the association between gut microbiome and dietary determinants and vaccine response. This study aims to learn if diet and the microbes (such as bacteria and viruses) found in your gut affect the body's immune response to the influenza vaccine. Read Less

This is a Phase 1, single-site, comparator-controlled, dosage-escalating study of an intramuscularly administered mRNA-LNP vaccine encoding for DCVC H1 HA in up to 50 adult volunteers aged 18 to 49 years, inclusive. This study is designed to assess the safety and immunogenicity of two doses of DCVC H1 HA mRNA vaccine administered 28 days apart. Eligible participants will be sequentially enrolled into dosage escalation groups (10 mcg, 25 mcg, and 50 mcg). A separate group of 10 participants will receive one dose of the licensed quadrivalent influenza vaccine (IIV4). Enrollment of participants into the IIV4 group is limited to when the vaccine is available for a given year. Concurrent enrollment of the IIV4 group and any pre-specified study product group or groups may present logistical challenges due to the availability of the IIV4 vaccine and may preclude enrollment of all study participants prior to the subsequent off-season. Participants receiving IIV4 will be followed for safety but only their immune responses will be compared to those of participants receiving DCVC H1 HA mRNA vaccine. Dosing of DCVC H1 HA mRNA vaccine will commence at the lowest dose (10 mcg) and only escalate to the next highest dose if safety concerns are not identified. For each DCVC H1 HA mRNA vaccine dosing group, the first two participants enrolled will be considered the sentinel subgroup. After the two participants in the Low Dose sentinel subgroup are enrolled and given their first vaccination, enrollment and subsequent vaccinations in that dosing group will then be stopped until Day 3. This review will be conducted by a Safety Review Committee (SRC). If no halting criteria are met, the SRC will allow administration of the second dose for the sentinel subgroup and continued enrollment of the remaining 8 Low Dose Group participants (expanded subgroup) to complete enrollment of 10 participants. In order for a timely receipt of a second dose of study product on Day 29, SRC review and approval must occur prior to Study Day 28 for the first sentinel participant in the Low Dose Group. After the Low Dose Group enrollment is completed and both doses have been administered, enrollment will be stopped pending SRC review. After all participants in the Low Dose Group have completed the Day 36 visit, the SRC will review the clinical laboratory, reactogenicity, and adverse event information through the Day 36 visit for all Low Dose Group participants that received two doses. Approval by the SRC will allow dose escalation and initiation of enrollment of the Medium Dose Group sentinel subgroup. The Medium and High Dose sentinel and expanded groups will be enrolled as described above for the Low Dose sentinel and expanded groups, respectively, with the High Dose expanded subgroup enrolling up to 18 individuals. The primary objective of this study is to assess the safety of two doses of DCVC H1 HA mRNA Vaccine administered intramuscularly in healthy adults (18-49 yrs) at dosage levels of 10 mcg, 25 mcg, and 50 mcg. Read Less

Lung allograft recipients have a higher burden of influenza disease and greater associated morbidity and mortality compared with healthy controls. Induction and early maintenance immunosuppression is thought to impair immunogenicity to standard dose inactivated influenza vaccine. This early post-transplant period is when immunity is most desirable, since influenza disease during this time frame is associated with adverse consequences. Thus, strategies to reduce severe influenza disease in this highly susceptible population are critical. No trials in lung transplant recipients have evaluated two doses of HD-IIV within the same influenza season as a strategy to improve immunogenicity and durability of influenza prevention. Furthermore, no influenza vaccine trials have focused on enrollment of subjects at early post-transplant timepoints. Very few studies have been performed in solely lung allograft recipients. Immunosuppression intensity is highest in lung patients, thereby limiting comparisons to recipients of heart, liver, and kidney transplants. Therefore, studies to assess both HD-IIV and two-dose strategies in the same influenza season in post-lung transplant recipients are greatly needed. The central hypothesis of our proposal is that lung allograft recipients who are 1-35 months post-transplant and receiving two doses of HD-quadrivalent inactivated influenza vaccine (QIV) will have higher HAI geometric mean titers (GMT) to influenza antigens compared to those receiving two doses of SD-QIV. To test this hypothesis and address the above critical knowledge gaps, we propose to conduct a phase II, multi-center, randomized, double-blind, controlled immunogenicity and safety trial comparing the administration of two doses of HD-QIV to two doses of SD-QIV in lung allograft recipients 1-35 months post-transplant. The results of this clinical trial will address significant knowledge gaps regarding influenza vaccine strategies (e.g., one vs. two doses and HD-QIV vs. SD-QIV) and immune responses in lung transplant recipients and will guide vaccine recommendations during the post-transplant period. Read Less