136 Clinical Trials for Various Conditions
SWIFT-ID-101 is a single site survey study designed to assess potential participants' eligibility to screen for industry-sponsored clinical trials for diagnosis, treatment, or prevention of infectious diseases such as in the areas of HIV, vaccines, and other infectious-diseases areas. A physician will oversee the informed consent process, after which participants will be surveyed on demographics, medical/surgical history, physical examination, comorbidities, and any current symptoms. Informed consent will be done electronically (preferable) or on paper. Informed consent may be done in-person or remotely, depending on patient preference. Information related to HIV, hepatitis B and C, other infectious diseases, or substance use disorder will also be obtained if applicable. Site staff may collect vital signs, fingerpick testing, urine drug screens, blood draws, EKG, and pregnancy tests. Some testing may be recommended in a fasting condition. A doctor will review medical history and results of the above evaluations with the participant to determine study suitability via clinical interview. The doctor may reach out to the patient's current treating physicians, other providers, and pharmacies to determine eligibility for clinical trials. A follow-up phone call may be needed to discuss testing results and/or trial eligibility. If a participant is deemed eligible for future trials and if the participant remains interested, counseling on contraception requirements for trials will be discussed.
The purpose of this study is provide a better understanding of the adaptive immune response to the licensed influenza vaccines in children.
The purpose of this study is provide a better understanding of the adaptive immune response to the licensed flu vaccines. The investigators hope the information learned from this study will help identify and describe important factors of influenza immunity especially of or specific proteins associated with the T-cell immune response.
Background: * The common varicella-zoster virus causes both chickenpox and shingles. Both diseases cause rashes, but they can also have complications such as bacterial infections of the skin, pneumonia, or eye disease. * By drawing and studying blood samples from people who have been infected with the varicella-zoster virus or who are receiving or have received the varicella vaccine, researchers hope to learn more about the immune system s response to the virus. Objectives: - To determine the immune system s response to the varicella virus, either in its existing form or given as part of a vaccine. Eligibility: * Individuals 18 years of age and older who have had or are receiving the varicella vaccine. * Individuals 5 years of age and older who currently have chickenpox or shingles. Design: * Participants will visit the NIH Clinical Center for an initial physical examination, and will provide blood samples for evaluation. * Researchers will determine the number of samples to be taken and the amount of blood to be drawn as needed based on the participants medical history and exposure to the varicella-zoster virus. Investigators in this study will not be giving subjects either the chickenpox or shingles vaccine. They will only be looking at the response to the vaccine in persons who are receiving or have received the vaccine from their health care provider.
The overall purpose of this observational cohort study is to characterize COVID-specific immune responses to SARS-CoV-2 exposure or COVID vaccination in a real-world setting. Participants will be asked to provide blood samples (either a normal venous blood draw, a few drops of blood obtained with a small finger-stick device, or both), as well as saliva or nasal swab sample at a series of visits. Subjects will receive results of the testing that is approved for routine clinical use (i.e., their AditxtScore), while residual samples from each visit will be stored for future testing. These efforts will support ongoing AditxtScore test development and enhance the effectiveness of its interpretation - aiding efforts to maximize benefits of clinical laboratory testing in the pandemic response.
This retrospective study will evaluate characteristics, vaccine utilization and outcomes among subjects with immunocompromising conditions that received COVID-19 vaccination.
This is a retrospective non-randomized clinical study of 60 patients total to assess the effects of SARS-CoV-2 infection and the SARS-CoV-2 vaccination. This study will have 2 arms evaluating the epigenomes of patients pre and post-exposure to one of the interventions. The first arm of the study will analyze 40 patients' epigenomes whose DNA methylation was examined pre and post SARS-CoV-2 infection. The second arm of this study is analyzing 20 patients' epigenomes whose DNA methylation was examined pre and post-injection of the SARS-CoV-2 vaccine.
The purpose of this study is to determine if hepatitis C virus and influenza virus vaccine components can cross the placenta and stimulate an immune response in the fetus.
Acute otitis media (OM) and OM with effusion are common childhood diseases. Otitis media is a condition marked by inflammation of the middle ear. Otitis media with effusion typically means a long-term (chronic) middle ear inflammation with secretion of fluid into the middle ear due to the blockage of the canal leading from the middle ear to the mouth (eustachian tube). The fluid involved can be sterile (no organisms) or infected with disease causing organisms, such as bacteria or viruses. Nontypeable Haemophilus influenzae (NTHi) is a bacteria that is one of the leading causes of OM and respiratory infections in older people. NTHi carry substances on their surface called antigens. When antigens come into contact with the right kinds of cells in the body, an immune reaction is caused. This reaction is often the symptoms of sickness that a patient feels. One of the major antigens on the surface of NTHi is called lipooligosaccharide (LOS). In order for the body to fight off the attack of antigens, it creates substances called antibodies. Antibodies counter the action of antigens and make the bacteria harmless. However, the immune system must learn how to make the right antibodies for the right antigens. This is done by giving vaccines. Vaccines can contain a small amount or an inactive form of an antigen. Once the immune system recognizes the antigen it can start making antibodies to prevent sickness if it is ever exposed to the antigen again. Presently there are no vaccines for NTHi. One of the reasons why there is no vaccine for NTHi is because the antigen, LOS, is very toxic when given to humans. Researchers have tried to make the antigen less dangerous by removing the toxic effects. It is referred to as dLOS. Unfortunately, dLOS is unable to start antibody production. However, researchers have found that by combining dLOS with another vaccine for tetanus (tetanous toxoid), they were able to stimulate the immune system to create antibodies in laboratory animals. These laboratory animals were protected against NTHi infections and otitis media (OM). Researchers would like to test the effectiveness and safety of dLOS-TT vaccine in adult humans. Their ultimate goal is to develop a vaccine for OM and respiratory infections caused by NTHi.
This study aims to identify the innate and adaptive immune response to zoster vaccination. Half of the participants will be individuals with chronic hepatitis C, while the other half with healthy volunteers.The innate immune signature elicited by Zoster vaccination will be characterized by RNA-seq analysis of pre- and post-vaccination RNA from whole blood. We will compare fold changes in gene expression profiles pre- versus post-vaccination in each individual, as well as between the two arms of the study. RNA-seq will be used to assess innate immune activation by evaluating the changes to the expression levels of interferon-stimulated genes pre- and post-vaccination. Adaptive immune response will be determined by the traditional correlates of protection used in previous Zoster clinical studies in addition to flow cytometry24. Correlates of protection include antibody response, interferon gamma production and the frequency of responder cells post- vaccination24. For antibody production, we will perform Zoster glycoprotein ELISA (gpELISA) targeting IgG/IgM. The number and frequency of responder cells will be characterized by flow cytometry.
The purpose of this study is to evaluate the safety and immunogenicity of PCV21 versus 20vPCV ( 20-valent pneumococcal conjugate vaccine, Prevnar 20) for catch-up vaccination in infants (7 to 11 MoA-Months of age), toddlers (12 to 23 MoA), and children/adolescents (2 to 5 YoA and 6 to 17 YoA-years of age).
This research aims to identify communication strategies to improve the uptake of vaccines using an experimental design, focusing on the Human Papillomavirus (HPV) vaccine, which is highly effective in preventing HPV-related cancers. However, low HPV vaccination rates among adults remain a significant public health challenge. Although randomized controlled trials (RCTs) have demonstrated that interventions can increase vaccine uptake in children, few RCTs have been conducted on adults. To address this gap, a multidisciplinary investigative team with expertise in communication, medicine, nursing, and behavior-change intervention research, and a history of extensive collaboration, will conduct a survey experiment on a national sample of over 3,689 adults to identify the most promising theory-based messages to strengthen HPV vaccine intentions.
The purpose of this study is to determine the provider- and practice-level characteristics that influence the impact of implementation strategies guided by practice facilitation in each clinical practice, to test whether the facilitator-driven provider- and practice-level implementation strategies increase provider recommendations and Human Papilloma Virus (HPV) vaccination rates and to evaluate implementation and future sustainability of the facilitator-driven implementation strategies across nine clinical practice sites
Respiratory Syncytial Virus (RSV) is the leading cause of lower respiratory tract infections (LRTIs) in infants and young children. It is also a leading cause of mortality in children \<5 years of age worldwide. Until recently, no Food and Drug Administration (FDA)-approved vaccines were available to prevent RSV infection. The only prophylactic product for RSV prevention recommended for infants was the monoclonal antibody palivizumab, but administration was limited to those with extreme prematurity, chronic lung disease, or hemodynamically significant congenital heart disease. However, in 2023, the FDA approved two products designed to prevent RSV lower respiratory tract disease (LRTD) in all infants: an active RSV vaccine based on the prefusion F protein (RSVpreF, ABRYSVO, Pfizer) administered during pregnancy, and a passive, long-acting monoclonal antibody (nirsevimab-alip \[henceforth referred to as nirsevimab\], BEYFORTUS, AstraZeneca) administered to infants at birth or at the start of their first RSV season. Both products were evaluated in Phase 3 pivotal clinical trials and have high efficacy in preventing LRTD caused by RSV in infants. Although there is no established correlate of protection against RSV, antibodies have been associated with protection across multiple studies. The clinical development plan for the products did not include comprehensive evaluations of the magnitude and durability of the immune response, nor were the two products tested in a single trial. This study is a prospective, randomized, open-label Phase 4 study with the primary objective of evaluating the magnitude and durability of RSV-specific neutralizing antibodies in infants through 12 months of life following either maternal RSV vaccination, infant nirsevimab administration, or both products combined.
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.
This study evaluates the implementation of evidence based strategies to optimize HPV vaccination in rural primary care settings. Some of the largest disparities in human papillomavirus vaccination (HPVV) rates exist in rural communities, which represent missed opportunities for cancer prevention. Primary care provider visits in these communities serve as a crucial opportunity to communicate the importance of timely vaccination that is essential to effective cancer prevention. This study implements and tests a practice-level intervention (PC TEACH) using practice facilitation of evidence-based strategies to expand reach to rural community-based primary care settings to optimize delivery and increase HPVV rates. PC TEACH program may help rural communities overcome access and awareness factors that keep them from receiving HPVV.
This study will examine the feasibility and acceptability of an innovative game-based intervention designed for families of youth aged 11-14 to promote HPV vaccination; will explore changes in key outcomes and related measures; and will identify factors contributing to or impeding effective implementation in health clinic settings. The intervention and its approach have the potential to reduce health disparities in HPV-associated cancers in youth via low-cost technology and timely intervention.
This phase II clinical trial tests how well the cytomegalovirus-modified vaccinica Ankara (CMV-MVA) Triplex vaccine given to human leukocyte antigens (HLA) matched related stem cell donors works to prevent cytomegalovirus (CMV) infection in patients undergoing hematopoietic stem cell transplant. The CMV-MVA Triplex vaccine works by causing an immune response in the donors body to the CMV virus, creating immunity to it. The donor then passes that immunity on to the patient upon receiving the stem cell transplant. Giving the CMV-MVA triplex vaccine to donors may help prevent CMV infection of patients undergoing stem cell transplantation.
The purpose of this phase 3 multicenter, randomized, double-blind, placebo-controlled rollover study is to evaluate the safety and long-term immunogenicity of CHIKV VLP vaccine in adult and adolescent participants and to evaluate CHIKV VLP booster vaccine induced serum neutralizing antibody (SNA) response at 3, 4, or 5 years post-initial CHIKV VLP vaccination.
The goal of this clinical trial is to assess the immune response to the yellow fever vaccine 17D in adults with prior 17D vaccination. The main questions this study aims to answer are: * how does prior vaccination affect antibody responses to re-vaccination? * how does prior vaccination affect the immune cell response to re-vaccination? Participants will: * have been previously vaccinated with 17D. * be re-vaccinated with 17D. * provide medical and travel histories. * provide a blood sample prior to vaccination * provide a blood sample approximately every other day for 14 days after vaccination. * provide a blood sample approximately 28 days after vaccination. * complete a daily diary of symptoms following vaccination for 14 days. * report any additional symptoms after 14 days.
The purpose of this follow-up study is to describe the safety in subsequent pregnancies in participants who were previously administered the RSVPreF3 maternal vaccine or control during any prior RSV MAT study. The study participants enrolled in this follow-up study received RSVPreF3 maternal vaccination (any dose) or controls during the following prior RSV MAT studies: RSV MAT-001 (NCT03674177), RSV MAT-004 (NCT04126213), RSV MAT-010 (NCT05045144), RSV MAT-011 (NCT04138056), RSV MAT-009 (NCT04605159), RSV MAT-012 (NCT04980391) and RSV MAT-039 (NCT05169905). No intervention will be administered in this study. The exposure was the intervention (either RSVPreF3 vaccine or control) received by the study participants in the above-mentioned prior RSV MAT studies.
COVID-19 infection during pregnancy is associated with increased risk of pre-eclampsia, preterm birth and stillbirth. Pregnant people with COVID-19 have a higher rate of ICU admission and intubation than those who are not pregnant. COVID-19 vaccine is recommended before pregnancy and during pregnancy to decrease these risks. Despite the benefits of COVID-19 vaccination, only 71% of pregnant women were vaccinated for COVID-19 as of June 2022 (most prior to pregnancy), with a much lower rate of 58% among non-Hispanic Black women. An effective intervention is needed to improve COVID vaccination rates for pregnant people overall. In this study, the investigators will perform a randomized controlled trial aimed at practice change in obstetricians' offices, with an overall goal of increasing maternal COVID-19 vaccination rates.
This exploratory trial will have three parts. Part A is a dose escalation part, Part B is an expanded safety and dose evaluation part, and Part C is a safety and immunogenicity evaluation part in individuals with recurrent HSV-2 genital herpes. Part A will focus on the safety evaluations, and in addition, vaccine-induced immune responses (specifically neutralizing antibodies) will also be analyzed to assess if there is a dose-response. Part B of the trial will expand the safety characterization for two dose levels of BNT163 selected based on Part A data and will also enable a more comprehensive assessment of the impact of pre-existing immunity to HSV-1 and -2 on the safety and immune responses to BNT163. Part C will evaluate safety and immunogenicity of BNT163 compared to a placebo in a three-dose regimen in subjects with a history of HSV-2 recurrent genital herpes.
This is a Phase 2, randomized, multi-center study in approximately 300 adults who received 2 doses of aH5N1c or placebo in and completed the parent study V89_18 in the \<65 years of age cohort. The study investigates whether two priming doses of MF59-adjuvanted H5N1 cell culture-derived vaccine (aH5N1c) followed by one or two booster vaccinations with a MF59-adjuvanted H5N6 cell culture derived vaccine (aH5N6c) 3 weeks apart elicit immune responses to the antigens used for priming (H5N1) and boosting (H5N6) after first and second heterologous booster vaccination. Eligible subjects, who received 2 doses of aH5N1c in the parent study V89_18 are randomized in a 1:1 ratio to receive either two aH5N6c vaccinations, 3 weeks apart (group 1) or an aH5N6c vaccination on Day 1 and saline placebo on Day 22 (group 2). Eligible subjects, who received placebo in the parent study will receive two aH5N6c vaccinations, 3 weeks apart (group 3). After the second vaccine administration, subjects are monitored for approximately 6 months for safety and antibody persistence. The total study duration will be approximately 7 months per subject.
Influenza infection occurring during oncologic treatment or following hematopoietic cell transplantation (HCT) is associated with increased risk of morbidity in the form of lower respiratory tract infection (LRTI) and mortality relative to otherwise healthy patients. The study participants have been diagnosed with a hematological malignancy and are eligible to receive the current seasonal influenza (Flu) vaccine. Primary Objective * To determine the feasibility of opening a longitudinal prospective study of IIV immunogenicity in pediatric leukemia patients. * To describe the immunogenicity, as measured by the development of cell- and/or antibody-mediated influenza specific responses 3 to 5 weeks following vaccination, in a cohort of pediatric leukemia patients. Secondary Objectives * To describe whether an immune response, as measured by development of cell- and/or antibody-mediated influenza specific responses, is detectable 1-2 weeks following vaccination in a cohort of pediatric leukemia patients. * To describe the durability of immunogenicity by measuring cell - and antibody- mediated influenza specific responses at 6 months and 1 year following vaccination in a cohort of pediatric leukemia patients. Exploratory Objectives * To estimate the clinical effectiveness of influenza vaccine in this cohort by monitoring for the development of clinical diagnosis of influenza in the cohort of enrolled pediatric oncology patients. * To correlate results of immune cell frequency in blood, as measured by complete blood count with differential, with development of an immune response to IIV.
The purpose of this study is to evaluate the safety, reactogenicity and immunogenicity of a single intramuscular dose of the investigational respiratory syncytial virus (RSV) maternal (RSV MAT) vaccine during subsequent uncomplicated pregnancy in maternal participants, 18 to 49 years of age (YOA), who have previously received the RSV MAT vaccine or placebo in the RSV MAT-004 (NCT04126213), RSV MAT-009 (NCT04605159) and RSV MAT-012 (NCT04980391) primary studies.
This study evaluates immunologic response following COVID-19 vaccination in children, adolescents, and young adults with cancer. Vaccines work by stimulating the body's immune cells to respond against a specific disease. The immune response produces protection from that disease. Effects from cancer and from treatments for cancer can reduce the body's natural disease fighting ability (called immunity). Factors such as vaccine type, timing of vaccine dosing related to treatment for cancer and number of vaccine doses or "boosts" (extra vaccine shots) may strengthen or diminish the body's protective immune response. This study may help researchers learn more about how the body's immune system responds to the COVID-19 vaccine when the vaccination is given during or after cancer treatment.
People with sarcoidosis, particularly those with significant lung and/or cardiac involvement, who become infected with severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) are likely at increased risk of complications or death from COVID-19. While SARS-CoV-2 vaccines are highly efficacious in preventing COVID-19 in the general population, whether vaccination provides similar protection in people with sarcoidosis is unknown. The investigators hypothesize that people with sarcoidosis develop less robust antibody and cell-mediated immune responses to SARS-CoV-2 vaccination than healthy individuals, both as a consequence of the disease itself and due to treatment with immunosuppressive medications. This hypothesis will be examined by determining levels of anti-SARS-CoV-2 spike protein immunoglobulin G (IgG) antibody (Specific Aim 1) and measuring SARS-CoV-2-specific activation of peripheral blood T cells (Specific Aim 2) following SARS-CoV-2 vaccination in individuals with sarcoidosis treated and not treated with immunosuppressive medications, in comparison to age- and sex-matched healthy controls. For Specific Aim 1, a second-generation anti-SARS-CoV-2 spike IgG assay calibrated against an independent virus neutralization assay will be utilized. The results of this investigation will address a critical gap in the understanding of vaccine responses in people with sarcoidosis. In addition, the study will contribute knowledge needed to inform clinicians' recommendations to sarcoidosis patients regarding risk of infection after SARS-CoV-2 vaccination, and will help lay the basis for future trials to evaluate the possible benefit of vaccine boosters in individuals with poor immune responses to initial vaccination.
Background: Vaccines against SARS-CoV-2, the virus that causes COVID-19, have been highly effective against preventing severe disease. But the protective effects of these vaccines appear to wane over time. Researchers want to learn why. Objective: To learn more about how the immune system responds to vaccines against infections like SARS-CoV-2. Eligibility: Healthy adults ages 18 or older who are scheduled to receive either a new vaccine or a booster shot against SARS-COV-2 or another emerging infection. Design: Participants will be screened with a medical history and blood and urine tests. Participants will have up to 8 study visits in 1 year. Each visit should last less than 2 hours. At each visit, participants will give blood samples. Some blood samples will be used for genetic testing. They will also give updates on their health. After the first study visit, participants will receive either a first vaccination or a booster shot. They must get the vaccine in their community or workplace. They will not get the vaccine at NIH. This study currently focuses on SARS-CoV-2, but it will expand to other infectious diseases as they emerge and become the target of new vaccines. ...
This clinical trial studies how to improve the human papillomavirus (HPV) vaccination rate in young adults in Texas. This trial aims to learn more about how researchers and health care providers can increase HPV vaccination among college students.