View clinical trials related to Pneumococcal Infections.
Filter by:This study will assess the Immunogenicity and safety of 13-valent Pneumococcal Conjugate Vaccine compared with 23-valent Pneumococcal Polysaccharide Vaccine. All participants should be naïve of Pneumococcal vaccine.
The 23-valent pneumococcal Polysaccharide vaccine (23vPPV) has been developed for children and adults to prevent pneumococcal diseases such as pneumonia (inflammation of the lungs), meningitis (inflammation of the brain lining), and septicemia (blood poisoning) since 2006 in China. Also, the trivalent influenza vaccine (TIV) is frequently administered to the children and adults. The main objective of this study is to show that both vaccines can safely be administered together without affecting the immune response of protecting against disease.
This study is designed to assess the safety, tolerability, and immunogenicity of 5 different formulations of V114 in healthy adults and infants. Adults only will be enrolled in Period 1 and infants only will be enrolled in Period 2; Period 1 will complete prior to the start of Period 2.
Human Immunodeficiency Virus (HIV) infection is complicated by high rates of infections and cancers which are often the cause of death rather than the HIV/acquired immune deficiency syndrome (AIDS) virus itself. Treatment of HIV with antiretroviral medications has decreased the frequency of many complications by over 90%, but bacterial pneumonia remains extremely high. Current vaccines are not very effective in preventing these infections in patients with HIV infection. The investigators are studying the cells (B cells) that make antibodies to fight infection by binding to and killing bacteria. The goal is to understand how HIV impairs the ability of B cells to make antibodies in sufficient quantity and of sufficient quality to protect patients with HIV to learn how to enhance protection against these infections. The investigators also seek to understand the role of the bacteria (specifically Streptococcus pneumoniae) that normally live in the nose and throat in the development of pneumonia and other infections.
Children/ young people with diabetes may be at a higher risk of acquiring certain infections. These infections include those caused by a bacterium called the pneumococcus which can cause pneumonia, meningitis and ear infections. In the UK older children with diabetes are given a vaccine against the pneumococcus bug called Pneumovax (or PPS23 for short). Although PPS23 causes a good immune response in children over 2 years of age it is not actually known how well PPS23 protects against infection in children of any age. In addition there is some data in adults and children that PPS23 may result in a reduced response to future doses of pneumococcal vaccines (hyporesponsiveness). Because of the lack of information on how well PPS23 protects and potential hyporesponsiveness the investigators would like to study the use of an alternative vaccine against pneumococcus called Prevenar13 (or pCV13). This vaccine is known to be safe and to work well in babies and young children and there have been no concerns about hyporesponsiveness. It has been approved for use in children up to 17 years of age but there is little information on the size and duration of immune response to PCV13 in children aged 6 years and older.
Background : Community-acquired pneumonia (CAP) is a threat in industrialized countries. It represents the 6th cause of death. CAP also frequently associates with other disorders responsible for admission and death. Among bacteria responsible for CAP, Streptococcus pneumonia is a major pathogen that is commonly involved and frequently leads to severe infection and admission. Categories at risk for this pathogen have been determined, and can be proposed anti-pneumococcal vaccination (APV) that efficiently and safely protects from this microorganism. In the context of US health services, monocenter pilot experiences have reported improvement of pneumococcal prophylaxis implementing vaccination procedure at ED. A study that set in New Mexico (2003) reported a significant increase in APV (from 18% to 84%) when patients at risk were proposed vaccination at ED. To obtain these results, medical students were specifically trained and dedicated to screen and vaccinate against St. pneumoniae. Another single center trial (Tennessee, 2007) for APV at ED obtained an improvement (from 38.8 to 45.4%) when physicians were alerted for pneumococcal risk by the software they usually utilized at bedside. However these experiences remain sparse as additional dedicated resources are required or patients and attending ED physicians can be reluctant to proceed to vaccination at ED. Mobile phone and derived communication modalities are current vectors to deliver information in several fields including education and medicine. Initially used in developing countries, short-message services (SMS) have improved behaviour of patients in various medical areas. In France, the investigators have observed that most patients above 50 years of age admitted after ED visit are equipped with mobile phone and can receive alerts by SMS. These observations prompt us to propose a multifaceted procedure to improve APV after ED visit in at-risk patients, combining structured oral interview, written information and SMS as reminders. Purpose : The investigators hypothesized that - a multifaceted intervention to promote anti-pneumococcal vaccination combining a structured oral interview, a written information to patient and his/her general practitioner, and a series of 3 SMS, - improves anti-pneumococcal vaccination at 6 months, - in at-risk patients (65+ years) visiting the emergency department. In order to answer this question, the investigators designed an interventional prospective multicenter randomized study (cluster).
In the UK, infants currently receive a 5-in-1 vaccine (Pediacel) at 2, 3 and 4 months of age, which protects against diphtheria, tetanus, pertussis (whooping cough), polio and Haemophilus influenzae type b (Hib). Infants also routinely receive a meningococcal group C vaccine (MenC) at 3 and 4 months and a 13-valent pneumococcal vaccine (Prevenar13) at 2 and 4 months of age. This study aims to offer infants a 6-in-1 vaccine (Infanrix-Hexa)that also helps protect against hepatitis B alongside the other routine vaccinations in the UK infant immunisation schedule and assess their immune responses to the different vaccines. Hepatitis B virus infects the liver and usually affects adults, but children can be infected through close contact with carriers of the virus. Children with hepatitis B infection may not have symptoms for many years but may go on to develop liver failure, cirrhosis and cancer. Many other countries already use Infanrix-Hexa and this study is being undertaken to help decide whether the UK can do the same. Babies taking part in this study will receive Infanrix-Hexa instead of Pediacel. All other vaccines given will be the same as in the routine schedule but will include one MenC vaccine instead of 2 doses because the UK infant immunisation schedule is soon going to change so that all babies will receive only one MenC vaccine at 3 months of age. There are currently several licensed MenC vaccines that can be given to babies. In order to check whether there are differences in protection, babies taking part will randomly receive one of 3 MenC-containing vaccines: NeisVacC, Menjugate or Menitorix. Studies have already shown that one dose of Neis-Vac or Menjugate given to babies at 3 months provides similar protection against MenC infection as two doses given at 3 and 4 months. Menitorix protects against both Hib and MenC, so babies in the group receiving MenitorixTM will have an extra dose of Hib which is also included in Infanrix-Hexa but might have a lower antibody response to MenC compared to the other two MenC vaccines, although all infants should be well-protected after their 12-month booster vaccinations, which also contain Menitorix.
Colistin is amphipathic, cannot be absorbed from the gastrointestinal tract and is administered intramuscularly, intravenously (IV) or via inhalation. In the case of pneumonia, aerosolized route of administration is favorable as it presumably delivers a high concentration of drug directly to the infection site. Colistimethate sodium is an FDA approved drug, however, its aerosolized use represents a new method of administration not currently FDA-approved in the United States. In this proposal, the inactive prodrug colistimethate sodium has been selected to use for aerosolization as it is better tolerated than colistin sulphate. It is a randomized, open-labeled Phase 1 trial of aerosolized and/or IV formulations of colistin as multiple doses over seven days. The primary objective of this trial is to evaluate the safety and tolerability of multiple doses of aerosolized and intravenous colistimethate sodium separately or in combination in healthy adult subjects.
The purpose of this study is to assess safety profile of Prevenar 13™ when used among Korean adults in the routine clinical setting, as required for any new drug approved by Korea Food and Drug Administration (KFDA).
The aim of this study is to specify the serotype distribution of Streptococcus pneumoniae that causes invasive diseases at children and adults in Turkey.