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Vaccine clinical trials

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NCT ID: NCT06450379 Completed - Vaccine Clinical Trials

Impact of Vaccines on Antimicrobial Microbial Resistance

IVAR
Start date: March 15, 2021
Phase:
Study type: Observational [Patient Registry]

Vaccination is a potentially critical component of efforts to arrest development and dissemination of antimicrobial resistance (AMR), though little is known about vaccination impact within low-income and middle-income countries. This study will evaluate the impact of vaccination on reducing carriage prevalence of resistant Streptococcus pneumoniae and extended spectrum beta-lactamase-producing Escherichia coli and Klebsiella species. We will leverage two large ongoing cluster-randomised vaccine evaluations in Malawi assessing; first, adding a booster dose to the 13-valent pneumococcal conjugate vaccine (PCV13) schedule, and second, introduction of the RTS,S/AS01 malaria vaccine. Six cross-sectional surveys will be implemented within primary healthcare centres (n=3000 users of outpatient facilities per survey) and their local communities (n=700 healthy children per survey): three surveys in Blantyre district (PCV13 component) and three surveys in Mangochi district (RTS,S/AS01 component). We will evaluate antibiotic prescription practices and AMR carriage in children ≤3 years. For the PCV13 component, surveys will be conducted 9, 18 and 33 months following a 3+0 to 2+1 schedule change. For the RTS,S/AS01 component, surveys will be conducted 32, 44 and 56 months post-RTS,S/AS01 introduction. Six health centres in each study component will be randomly selected for study inclusion. Between intervention arms, the primary outcome will be the difference in penicillin non-susceptibility prevalence among S. pneumoniae nasopharyngeal carriage isolates in healthy children. The study is powered to detect an absolute change of 13 percentage points (ie, 35% vs 22% penicillin non-susceptibility). This study has been approved by the Kamuzu University of Health Sciences (Ref: P01-21-3249), University College London (Ref: 18331/002) and University of Liverpool (Ref: 9908) Research Ethics Committees. Parental/caregiver verbal or written informed consent will be obtained prior to inclusion or recruitment in the health centre-based and community-based activities, respectively. Results will be disseminated via the Malawi Ministry of Health, WHO, peer-reviewed publications and conference presentations.

NCT ID: NCT06136832 Recruiting - Vaccine Clinical Trials

Pneumonia Vaccine Education Intervention Study

PVI
Start date: May 6, 2024
Phase: N/A
Study type: Interventional

The goal of this interventional clinical trial is to investigate the impact of medicine and pharmacy-led education on patient acceptance rates of Prevnar 20 pneumonia vaccination in patients eligible to receive the vaccine. The education intervention and subsequent option to get the vaccine will be done while the patient is admitted to inpatient care, prior to discharge. The main questions the study aims to answer are: - Will supplemental education about the Prevnar 20 Pneumococcal vaccine influence patient acceptance rates when given a decision to receive it? - Is there any other statistically relevant qualitative reasoning behind the patient's final decision for accepting or refusing the vaccine?

NCT ID: NCT06128928 Recruiting - COVID-19 Clinical Trials

Connecting Friends and Health Workers to Boost COVID-19 Vaccination in Latino Communities

REDES
Start date: July 8, 2023
Phase: N/A
Study type: Interventional

The goal of this clinical trial is to find out which approach works better in getting more of the friends and connections of Latino adults get vaccinated against COVID-19. The main questions this study aims to answer are: 1. Can teaching people to use motivational interviewing help more friends and connections of Latino adults get the COVID-19 vaccine compared to just giving information about the vaccine? 2. What are the things that make it easier or harder for Latinos and networks to get the COVID-19 vaccine? 3. How does this intervention work in practice so that it can be made available to more people in the future The researchers will compare the vaccine rates of the friends and connections of Latinos who have been trained in motivational interviewing with those who have only been given information about the COVID-19 vaccine. This will help figure out which method works best to encourage more people to get vaccinated.

NCT ID: NCT05765773 Active, not recruiting - COVID-19 Clinical Trials

An Open Comparative Study of the Effectiveness and Incomparable Study of the Immunogenicity and Safety of the Vaccine (CoviVac) for Adults Aged 60 Years and Older

Start date: July 1, 2021
Phase: Phase 2
Study type: Interventional

An Open Comprative Study of the Prophylactic Efficacy and a Non-comparative Study of the Immunogenicity and Safety of the Inactivated Whole-virion Concentrated Purified Coronavirus Vaccine (CoviVac) Produced by FSBSI "Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products" for Adults Aged 60 Years and Older

NCT ID: NCT05752747 Active, not recruiting - Pain Clinical Trials

The Effect of Shotblocker and Cold Massage on Pain, Crying Time and Physiological Parameters in Babies

Start date: June 9, 2022
Phase: N/A
Study type: Interventional

The aim of this study is to determine the effect of ShotBlocker© and cold massage on pain, crying time and physiological parameters during DaBT-IPA-Hib vaccine administration in 2-6 months old babies.

NCT ID: NCT05715918 Active, not recruiting - Vaccine Clinical Trials

Double-blind, Placebo-controlled, Randomized Study of the Tolerability, Safety and Immunogenicity of an Inactivated Whole Virion Concentrated Purified Vaccine (CoviVac) Against Covid-19 of Children at the Age of 12-17 Years Inclusive"

Start date: April 1, 2022
Phase: Phase 3
Study type: Interventional

Randomized, double-blind, placebo controlled, multi-center clinical trials of the tolerability, safety and immunogenicity of the inactivated whole-virion concentrated purified vaccine against COVID-19, manufactured by FSBSI "Chumakov FSC R&D IBP RAS", of childrens aged 12-17" (Clinical trials, phase III). Study purpose is to assess the tolerability, safety and immunogenicity of the inactivated whole-virion concentrated purified coronavirus vaccine of chidrens aged 12-17

NCT ID: NCT05407142 Recruiting - Clinical trials for Coronavirus Infections

An Open Comprative Study of the Prophylactic Efficacy and a Non-comparative Study of the Immunogenicity and Safety of the Inactivated Whole-virion Concentrated Purified Coronavirus Vaccine (CoviVac)

Start date: July 7, 2021
Phase: Phase 3
Study type: Interventional

An Open Comprative Study of the Prophylactic Efficacy and a Non-comparative Study of the Immunogenicity and Safety of the Inactivated Whole-virion Concentrated Purified Coronavirus Vaccine (CoviVac), Produced by FSBSI "Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products", on Volunteers at the Age of 18-60 Years

NCT ID: NCT05305261 Completed - Vaccine Clinical Trials

Mother to Child Transmission of Antibody to Covid-19 The TRAB CoV-19 Study.

Start date: July 29, 2021
Phase:
Study type: Observational [Patient Registry]

This is a prospective clinical study aiming to investigate on the transplacental antibody transmission post Covid-19 infection during pregnancy.

NCT ID: NCT05161845 Completed - Vaccine Clinical Trials

Clinical Trial of Measles, Mumps and Rubella Combined Vaccine, Live

Start date: December 23, 2021
Phase: Phase 4
Study type: Interventional

To evaluate the immunogenicity, lot-to-lot consistency and safety of three consecutive batches of Measles, Mumps and Rubella Combined Vaccine, Live.

NCT ID: NCT05150834 Recruiting - Covid-19 Clinical Trials

Gut Microbiota, the Potential Key to Modulating Humoral Immunogenicity of New Platform COVID-19 Vaccines

Start date: February 25, 2021
Phase:
Study type: Observational

Vaccination is the best way to mitigate the coronavirus disease 2019 (COVID-19) pandemic, but the vaccine immunogenicity may be quite variable from person to person. There is increasing evidence suggesting that the gut microbiome is a major determinant of vaccine immunogenicity. Thus, the investigators investigated the relationship between gut microbiota and humoral immune response after COVID-19 vaccination.