- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02249598
Competitive Carriage of Neisseria Spp(Lactamica 2) (Lactamica 2)
Competitive Carriage of Neisseria Spp.; Discovering New Methods of Inhibiting Carriage of Neisseria Meningitidis (Lactamica 2)
In the future it is likely that we will replace the current schedule of injected vaccines with interventions that interrupt transmission of infections in more subtle ways. The agent that causes meningococcal disease (Neisseria meningitidis) colonises the nasopharynx of individuals. In most people, the bacterium is harmless and survives for months in the nasopharynx, however in a minority of people the bacteria can cause invasive disease.
Simply reducing colonisation amongst target groups may protect them, and the rest of the population as well. In a previous study we investigated cross protective antibodies, and found incidentally that inoculating adult volunteers with Neisseria lactamica, a harmless 'cousin' of N. meningitidis, possibly prevents N. meningitidis carriage. If true this could lead to novel mechanisms of reducing colonisation in targeted groups, possibly in the form of a nasal medication. The proposed study large experimental challenge study funded by Meningitis UK that will aim to establish if N. lactamica does or does not inhibit colonisation by N. meningitidis. We will also determine whether N. lactamica displaces existing N. meningitidis carriage, and whether there are individuals who are innately resistant to any Neisseria carriage. The study will recruit 300 volunteers between the ages of 1830yrs from the two universities in Sheffield. It will involve placing droplets of N.lactamica bacteria into the nose of half our group of volunteers, and a harmless water like solution into the nose of the other half of volunteers. We will carry out nose swabs at intervals over a six month period to establish if the pattern of N.meningitidis carriage is effected by N.lactamica colonisation. If the findings are positive we will perform future mechanistic investigations. A62.
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
South Yorskshire
-
Sheffield, South Yorskshire, United Kingdom, S10 2JF
- Sheffield Teaching Hospitals
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Currently healthy
- Students and university employees from either Sheffield Hallam University or the University of Sheffield between the ages of 18 and 25yrs.
- Fully conversant in the English language
- Able to attend the full protocol timetable
Exclusion Criteria:
- Individuals who are Immunocompromised due to a medical condition
- Individuals taking immune modifying medications (not including inhaled steroids)
- Individuals in close contact with immunocompromised people including medical students with full time clinical attachments.
- Individuals who have an current infection
- Current Smokers
- People with an allergy to yeast extract.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Univeristy of Sheffield
lactamica
|
|
Placebo Comparator: Hallam University
Phosphate Buffered Saline (PBS)
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
The number of participants found to have carriage of the bacterium Neisseria meningitidis at 6 sampling points (culture of throat swaps) following innoculation as baseline of subjects with the bacterium Neisseria lactamica
Time Frame: number of positive results presenting between day 0 (baseline) until study completion (28 weeks)
|
culture of throat swabs at 2 weeks, 4 weeks, 8 weeks, 16 weeks, 26 weeks and 28 weeks.
|
number of positive results presenting between day 0 (baseline) until study completion (28 weeks)
|
Collaborators and Investigators
Investigators
- Principal Investigator: Robert Read, Sheffield NHS Trust
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- STH16097
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Neisseria Lactamica
-
Public Health EnglandCompleted
-
University Hospital, RouenInstitut Pasteur; Direction Générale de la Santé, FranceCompleted
-
Public Health EnglandCompletedNeisseria Meningitidis Serogroup BUnited Kingdom
-
University of AdelaideCompletedNeisseria MeningitidisAustralia
-
University of OxfordCompletedMeningococcal Infections | Neisseria Meningitidis | Meningococcal Vaccines | Factor H-binding Protein, Neisseria MeningitidiUnited Kingdom
-
University of AdelaideCompletedMeningococcal Infections | Neisseria Infection | Neisseria Meningitis SepsisAustralia
-
MCM Vaccines B.V.Merck Sharp & Dohme LLC; Sanofi Pasteur, a Sanofi CompanyCompletedVirus Diseases | Bacterial Infections | Neisseria Meningitidis
-
GlaxoSmithKlineCompletedNeisseria Meningitidis | Haemophilus Influenzae Type bUnited States, Mexico
-
GlaxoSmithKlineCompletedNeisseria Meningitidis | Haemophilus Influenzae Type bUnited States
Clinical Trials on Placebo
-
SamA Pharmaceutical Co., LtdUnknownAcute Bronchitis | Acute Upper Respiratory Tract InfectionKorea, Republic of
-
National Institute on Drug Abuse (NIDA)CompletedCannabis UseUnited States
-
AstraZenecaParexel; Spandauer Damm 130; 14050; Berlin, GermanyCompletedMale Subjects With Type II Diabetes (T2DM)Germany
-
Heptares Therapeutics LimitedCompletedPharmacokinetics | Safety IssuesUnited Kingdom
-
GlaxoSmithKlineCompletedPulmonary Disease, Chronic ObstructiveUnited Kingdom, Netherlands
-
ItalfarmacoCompletedBecker Muscular DystrophyNetherlands, Italy
-
Shijiazhuang Yiling Pharmaceutical Co. LtdXuanwu Hospital, BeijingCompleted
-
GlaxoSmithKlineCompletedInfections, BacterialUnited States
-
West Penn Allegheny Health SystemCompletedAsthma | Allergic RhinitisUnited States