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18 recruiting in MO
Recruiting

PEP-CMV Vaccine Targeting CMV Antigen to Treat Newly Diagnosed Pediatric HGG and DIPG and Recurrent Medulloblastoma

High Grade Glioma · Diffuse Intrinsic Pontine Glioma · Recurrent Medulloblastoma

This study will address the question of whether targeting CMV antigens with PEP-CMV can serve as a novel immunotherapeutic approach in pediatric patients with newly-diagnosed high-grade glioma (HGG) or diffuse intrinsic pontine glioma (DIPG) as well as recurrent medulloblastoma (MB). PEP-CMV is a vaccine mixture of a peptide referred to as Component A. Component A is a synthetic long peptide (SLP) of 26 amino acid residues from human pp65. The SLPs encode multiple potential class I, class II, and antibody epitopes across several haplotypes. Component A will be administered as a stable water:oil emulsion in Montanide ISA 51. Funding Source - FDA OOPD

St Louis, MO3–39 yrsAll genders
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A Clinical Study of Novel Pneumococcal Vaccine V118C in Children (V118C-002)

Pneumococcal Infection

Researchers are looking for new vaccines to prevent pneumococcal disease, which is any infection in the lungs or other parts of the body that is caused by a type of bacteria called Streptococcus pneumoniae. V118C is a new vaccine designed to help prevent disease from Streptococcus pneumoniae bacteria. This study will look at V118C in toddlers and infants. The goal of the study is to learn how safe V118C is for children and how well they tolerate it.

St Louis, MO0.2–1.3 yrsAll genders
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A Study to Learn About mRNA Vaccines Against Influenza in Adults

Healthy Adults

The purpose of this study is to learn about safety in participants taking the study vaccine (mRNA-based vaccine) and the ability of the study vaccine to trigger the body's immune response, targeting the flu virus (influenza virus). This study is seeking healthy participants 18 years of age or older. All participants in this study will receive only 1 dose in their arm, to deliver one of the experimental flu vaccines or one of the approved flu vaccines used for comparison. Participants will take part in this study for about 6 months, and participants will need to visit the study site at least 3 times. A blood sample will be taken at each of the 3 planned study visits and a swab from inside the nose will be taken at the first study visit.

Kansas City, MO18+ yrsAll genders
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Personalized Cancer Vaccine (PCV) Strategy in Patients With Solid Tumors and Molecular Residual Disease

Muscle-Invasive Bladder Carcinoma · Gastroesophageal Adenocarcinoma · Melanoma

This is a phase 1 clinical trial to evaluate the safety, feasibility and immunogenicity of a personalized cancer vaccine strategy in patients with solid tumors and molecular residual disease. The hypothesis of the trial is that synthetic long peptide personalized cancer vaccines will be safe and capable of generating measurable neoantigen-specific T-cell responses enabling ctDNA clearance. The personalized cancer vaccines are composed of synthetic long peptides corresponding to prioritized cancer neoantigens and will be co-administered with poly-ICLC.

St Louis, MO18+ yrsAll genders
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Study to Evaluate Safety, Efficacy and Immunogenicity of Acne mRNA Vaccine in Adults With Moderate to Severe Acne

Acne

The purpose of the trial is to evaluate the safety, efficacy and immunogenicity of up to 3 intramuscular injections of the Acne mRNA vaccine candidate at up to four dose levels in adult participants aged 18 to 45 years with moderate to severe acne. This trial will consist of a Core Study followed by an optional Long-Term Extension (LTE). The Core Study will consist of: * Two cohorts evaluating the 2-administration regimen (Cohorts A): Sentinel Cohort A and Main Cohort A. * Two cohorts evaluating the 3-administration regimen (Cohorts B): Sentinel Cohort B and Main Cohort B. Participants from Sentinel Cohorts A and B and from Main Cohort A will be invited to an additional 30-month follow up after completing their last planned Core Study visit to assess the long-term effects of the vaccine. Participants from Main Cohort B will be invited to another LTE study managed through a separate protocol.

Saint Joseph, MO18–45 yrsAll genders
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Testing the Addition of an Individualized Vaccine to Durvalumab and Tremelimumab and Chemotherapy in Patients With Metastatic Triple Negative Breast Cancer

Anatomic Stage IV Breast Cancer AJCC v8 · Invasive Breast Carcinoma · Metastatic Triple-Negative Breast Carcinoma

This phase II trial studies how well nab-paclitaxel, durvalumab, and tremelimumab with or without personalized synthetic long peptide vaccine (neoantigen vaccine) works in treating patients with triple negative breast cancer that has spread from where it first started (primary site) to other places in the body (metastatic). Chemotherapy drugs, such as nab-paclitaxel, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Immunotherapy with monoclonal antibodies, such as durvalumab and tremelimumab, may induce changes in body's immune system and may interfere with the ability of tumor cells to grow and spread. Vaccines made from peptides may help the body build an effective immune response to kill tumor cells. It is not yet known whether giving nab-paclitaxel, durvalumab, and tremelimumab with or without neoantigen vaccine will work better in treating patients with triple negative breast cancer.

City of Saint Peters, Creve Coeur +more, MO18+ yrsAll genders
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Characterizing the Human Airway Immune Response to FluMist Vaccination

Healthy Young Adults · Influenza Vaccines · Influenza Vaccine Response

The goal of this clinical trial is to measure the immune response in the blood, nose, and lungs after participants receive either the FDA-approved inactivated influenza vaccine or the FDA-approved intranasal FluMist vaccine. The study will evaluate immune responses in groups of healthy, non-pregnant, volunteers between the ages of 18 and 40. The main purpose of the study is to measure the change in influenza vaccine-specific antibodies in the lower lungs and nose between vaccination and 14 days after participants receive the vaccine. All participants will be randomized to receive one of the two seasonal flu vaccines and will have blood and back of the nose swabs collected throughout the study. Some study participants will choose to undergo optional bronchoscopy procedures and will be included in the part of the study looking at lower lung immune responses.

St Louis, MO18–40 yrsAll genders
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Dissecting Human Immune Responses to Infection With Influenza or SARS-CoV-2

Influenza · SARS-CoV-2 (COVID-19) Infection · Immune Response of Host

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.

St Louis, MO18–60 yrsAll genders
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Recruiting

A Safety and Immunogenicity Trial of OCU500, ChAd36 Vector Encoding SARS-CoV-2 Spike Vaccine Via Intranasal and Inhalational Routes in Previously Vaccinated Adults

COVID-19

This phase 1 randomized, open-label, dose-escalation clinical trial evaluates the safety and immunogenicity of OCU500, a ChAd36 Vector Encoding SARS-CoV-2 Spike Vaccine, in healthy adults aged 18-64 who previously completed a primary COVID-19 vaccination series and at least one booster. The study evaluates two dose levels (1×10\^10 viral particles (VP) and 5×10\^10 VP) and two routes of administration (intranasal and inhaled). The trial includes 80 participants across four study arms (20 per arm). The primary objective is to evaluate the safety and reactogenicity of a single dose of OCU500 administered in previously vaccinated healthy adults.

St Louis, MO18–64 yrsAll genders
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A Study to Learn About a Clostridioides Difficile Vaccine in People 65 Years of Age and Older

Clostridioides Difficile Associated Disease

The purpose of the study is to learn about how effective, safe, and tolerable the Clostridioides difficile (C. difficile) vaccine is in decreasing the number of C. difficile infections (pCDI) in adults 65 years of age or older. The participants will receive either the C. difficile vaccine or placebo (saline). A placebo does not contain any active ingredients. The vaccines will be given as a shot into the upper arm muscle. This study looks at the number of diarrhea (loose stools) events related to a C. difficile infection, so the length of the study can change. If these events happen quickly, the study may finish sooner; if they happen slowly, it could take longer. Sometimes, the study might stop early if the vaccine clearly works or clearly doesn't. Participants will stay in the study until enough events have occurred to answer the main question. On average, each person is expected to take part for up to about three and a half years. During this time, participants will have 3 planned clinical visits and 3 planned phone visits. After these visits, more scheduled clinic visits will happen every year until the end of study. Besides the scheduled study visits, if at any time during the study a participant has 3 or more loose stools in 24 hours, they will be asked to save the next one (the fourth or later) and contact the study site. The study site will check to see if it could be a C. difficile infection. This check may happen at the clinic or through a phone or video call.

St Louis, MO65+ yrsAll genders
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Recruiting

Safety and Efficacy of Measles, Mumps, Rubella Vaccination in Pediatric Heart Transplantation Patients

Heart Transplant Infection Prevention

The study is an interventional, non-randomized assessment of safety and efficacy of live Measles, Mumps and Rubella (MMR) vaccine in subjects aged 12-months to 17 years who have undergone heart transplantation. Subjects who provide permission/assent will receive the commercial MMR vaccine according to product indication and labeling.

Kansas City, MO1–17 yrsAll genders
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Recruiting

BEATRIX: A Study to Learn About a Group B Streptococcus Vaccine in Healthy Pregnant Women and Their Babies

Healthy

BEATRIX (group B strEptococcus mATeRnal and Infant VaX study) The purpose of this study is to learn about the safety and how the group B streptococcus (GBS) vaccine works in pregnant women and their babies. This study is seeking healthy pregnant participants: * aged 49 or younger who can join. * between 24 and 36 weeks of gestation ("Gestational age" is a medical term used to describe how far along your pregnancy is) * had a fetal ultrasound examination performed with no major fetal abnormalities observed * documented negative for HIV, syphilis and Hepatitis B All participants in this study will receive only 1 shot in an arm. This could either be a group B streptococcus 6-valent polysaccharide conjugate vaccine (GBS6) or placebo. Placebo is an inactive substance used in the study for comparison purposes; in this study, the placebo injection will be saline (saltwater). The pregnant participants may take part in this study for a maximum of 14 months (6 months after delivery) , and their babies for about 12 months after they are born. The pregnant participants will need to visit the research site at least 3 to 4 times with some visits permitted to occur over the telephone. A subset of infants will be asked to take part in the study for up to 19 months. The subset will receive diphtheria toxoid-containing vaccine and/or pneumococcal vaccine following each country's standard immunization plan and have blood drawn 1 month after completion of the primary and/or toddler (booster) doses.

St Louis, MO0–49 yrsAll genders
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Recruiting

A Study Evaluating Persistence of the Immune Response of the Adjuvanted Respiratory Syncytial Virus (RSV) Vaccine and the Safety and Immune Response Following Revaccination in Adults 18 Years of Age and Above Who Received Lung or Kidney Transplant

Respiratory Syncytial Virus Infections

This study evaluates persistence of the immune response of the adjuvanted RSV vaccine and the safety and immunogenicity following revaccination in adults 18 years of age and above who received lung or kidney transplant.

St Louis, MO18+ yrsAll genders
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Recruiting

Evaluation of Safety, Immunogenicity and Efficacy of a Triple Immune Regimen in Adults Initiated on ART During Acute HIV-1

HIV-1-infection

The purpose of this study is to evaluate the safety, tolerability, and efficacy of therapeutic vaccination with chimpanzee adenovirus ChAdOx1- and poxvirus modified vaccinia Ankara (MVA)-vectored conserved mosaic T-cell vaccines in a sequential regimen with the toll-like receptor 7 (TLR7) agonist vesatolimod (VES) and two broadly neutralizing antibodies (bNAbs) compared to placebo, to induce HIV-1 control during analytic treatment interruption (ATI).

St Louis, MO18+ yrsAll genders
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Recruiting

High vs.Standard Dose Influenza Vaccine in Pediatric Solid Organ Transplant (SOT) Recipients

Immunization; Infection · Transplantation Infection · Influenza

Influenza virus is a significant pathogen in pediatric solid organ transplant (SOT) recipients. However, these individuals respond poorly to standard-dose (SD) inactivated influenza vaccine (IIV). Recent studies have investigated two strategies to overcome poor immune responses in SOT recipients: (1) administration of high-dose (HD)-IIV compared to SD-IIV and (2) two doses of SD-IIV compared to one dose of SD-IIV in the same influenza season. One study compared HD-IIV vs. SD-IIV in adult SOT recipients and noted that HD-IIV was safe and more immunogenic; however, the median post-transplant period was 38 months. A phase I pediatric study comparing a single dose of HD-IIV vs. SD-IIV was safe with higher immunogenicity, but the study was limited by small sample size and median post-transplant vaccine administration was 26 months. In another phase II trial of adult SOT recipients, two doses of SD-IIV one month apart compared to one-dose of SD-IIV revealed modestly increased immunogenicity when given at a median of 18 months post-transplant. Therefore, these studies lack both evaluation in the early post-transplant period and substantive pediatric populations. Additionally, the administration of two-doses of HD-IIV in the same influenza season has not been evaluated in pediatric SOT recipients. Thus, the optimal immunization strategy for pediatric SOT recipients less than 24 months post-transplant is unknown. In addition, immunologic predictors and correlates of influenza vaccine immunogenicity in pediatric SOT recipients have not been well-defined. The central hypothesis of our proposal is that pediatric SOT recipients 1-23 months post-transplant who receive two doses of HD-quadrivalent inactivated influenza vaccine (QIV) will have similar safety but higher Hemagglutination Inhibition (HAI) geometric mean titers (GMTs) to influenza antigens compared to pediatric SOT recipients receiving two doses of SD-QIV.

Kansas City, MO3–17 yrsAll genders
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A Study on the Immune Response and Safety of an Investigational Chickenpox Vaccine When Given to Healthy Children 12 to 15 Months of Age

Chickenpox

The purpose of this study is to assess the consistency of immune response to three different lots of GSK's investigational varicella vaccine (VNS Vaccine), and to compare the safety and immune response of VNS vaccine to an already approved varicella vaccine (VV) known as Varivax. The study will be conducted in healthy children aged 12 to 15 months, who have neither contracted varicella nor received a varicella vaccination.

Jefferson City, MO1–1.3 yrsAll genders
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Recruiting

PEP-CMV + Nivolumab for Newly Diagnosed Diffuse Midline Glioma/High-grade Glioma and Recurrent Diffuse Midline Glioma/High-grade Glioma, Medulloblastoma, and Ependymoma

Diffuse Midline Glioma · Diffuse Midline High-grade Glioma · Medulloblastoma

This is a multisite, phase I/II clinical trial in children and young adults with newly-diagnosed high-grade glioma (HGG), diffuse midline glioma (DMG) and recurrent HGG/DMG, Medulloblastoma (MB), or ependymoma (EPN) to determine the safety, immunogenicity, and efficacy of a CMV-directed peptide vaccine plus checkpoint blockade.

St Louis, MO4–25 yrsAll genders
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