NCT01349543

Brief Summary

The aim of this study is to understand the immune response (how the body fights infection) to Respiratory Syncytial Virus (RSV). This virus usually causes a simple 'common cold' illness in healthy adults, but can cause wheezing and lung problems in young infants and the elderly. The investigators want to understand why this is, in order to develop vaccines and treatments. Participants will include 30-40 healthy adults age 18-55 years. Study procedures will include brief medical exams, breathing tests, a diary of symptoms, blood tests, samples of fluid (lavage) and cells from the nose, throat and lungs. All participants will receive the virus via drops in the nose. The duration of the study for all subjects will be 6 weeks.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
58

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started May 2011

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 1, 2011

Completed
4 days until next milestone

First Submitted

Initial submission to the registry

May 5, 2011

Completed
1 day until next milestone

First Posted

Study publicly available on registry

May 6, 2011

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2013

Completed
11 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2014

Completed
10.1 years until next milestone

Results Posted

Study results publicly available

September 19, 2024

Completed
Last Updated

September 19, 2024

Status Verified

April 1, 2024

Enrollment Period

2.4 years

First QC Date

May 5, 2011

Results QC Date

September 28, 2023

Last Update Submit

April 16, 2024

Conditions

Keywords

Respiratory syncytial virusRSVImmunologyViral infectionBronchiolitisViral challengeViral lung disease

Outcome Measures

Primary Outcomes (1)

  • Host Response to RSV Challenge Measured as Change From Baseline of Chemical Mediators in Nasal Fluid

    The host response to RSV challenge has been assessed at baseline, daily for 14 days and at study conclusion (28 days) using methods such as symptom diaries, volume of nasal secretions, numbers of inflammatory cells in nasal mucus, and levels of chemical mediators in nasal fluids.

    Prior to and 0-28 days post challenge

Study Arms (1)

Viral Challenge

EXPERIMENTAL
Biological: RSV A Memphis 37

Interventions

Intranasal administration

Also known as: M37
Viral Challenge

Eligibility Criteria

Age18 Years - 55 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Healthy persons aged 18 to 55 years, able to give informed consent

You may not qualify if:

  • Chronic respiratory disease (asthma, COPD, rhinitis, sinusitis) in adulthood
  • Inhaled bronchodilator or steroid use within the last 12 months
  • Use of any medication or other product (prescription or over-the-counter) for symptoms of rhinitis or nasal congestion within the last 6 months
  • Acute upper respiratory infection (URI or sinusitis) in the past 6 weeks
  • Smoking in the past 6 months OR \>5 pack-year lifetime history
  • Subjects with allergic symptoms present at baseline
  • Those in close domestic contact (i.e. sharing a household with, caring for, or daily face to face contact) with children under 3 years, the elderly (\>65 years), immunosuppressed persons, or those with chronic respiratory disease
  • Subjects with known or suspected immune deficiency
  • Receipt of systemic glucocorticoids (in a dose ≥ 5 mg prednisone daily or equivalent) within one month, or any other cytotoxic or immunosuppressive drug within 6 months prior to challenge
  • History of frequent nose bleeds
  • Any significant medical condition or prescribed drug deemed by the study doctor to make the participant unsuitable for the study
  • Pregnant or breastfeeding women

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

St. Mary's Hospital, Imperial College London, Norfolk Place,

London, W2 1PG, United Kingdom

Location

Related Publications (1)

  • Habibi MS, Thwaites RS, Chang M, Jozwik A, Paras A, Kirsebom F, Varese A, Owen A, Cuthbertson L, James P, Tunstall T, Nickle D, Hansel TT, Moffatt MF, Johansson C, Chiu C, Openshaw PJM. Neutrophilic inflammation in the respiratory mucosa predisposes to RSV infection. Science. 2020 Oct 9;370(6513):eaba9301. doi: 10.1126/science.aba9301.

MeSH Terms

Conditions

Respiratory Syncytial Virus InfectionsVirus DiseasesBronchiolitis

Interventions

beta-lactamase CTX-M-37, Salmonella enterica

Condition Hierarchy (Ancestors)

Pneumovirus InfectionsParamyxoviridae InfectionsMononegavirales InfectionsRNA Virus InfectionsInfectionsBronchitisRespiratory Tract InfectionsBronchial DiseasesRespiratory Tract DiseasesLung Diseases, ObstructiveLung Diseases

Results Point of Contact

Title
Prof Peter JM Openshaw
Organization
Imperial College London

Study Officials

  • Peter Openshaw

    Imperial College London

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 5, 2011

First Posted

May 6, 2011

Study Start

May 1, 2011

Primary Completion

October 1, 2013

Study Completion

September 1, 2014

Last Updated

September 19, 2024

Results First Posted

September 19, 2024

Record last verified: 2024-04

Locations