NCT01646138

Brief Summary

Background: \- A challenge study exposes a person to a disease and allows researchers to study the disease through the body's healing process. An influenza challenge study that looks at different amounts of the flu virus can provide more information on the smallest amount needed to cause an infection. Researchers want to give one dose of the Influenza A H1N1 virus to healthy volunteers to see how the body responds to the virus. Objectives:

  • To find the smallest dose of Influenza A H1N1 virus that may cause a mild to moderate flu infection in a healthy adult.
  • To study how the body s immune system responds to the virus. Eligibility:
  • Healthy volunteers at least 18 years of age.
  • Participants must be willing to remain in isolation for a minimum of 9 days. Design:
  • Participants will be admitted to a hospital inpatient isolation unit. They will be screened with a physical exam and medical history. They will also have heart and lung function tests. Blood, urine, and nasal swab/wash samples will be collected.
  • Participants will receive a single nasal spray of the flu virus. They will stay on the inpatient unit for at least 9 days.
  • Participants will be monitored for the length of their stay. They will have frequent blood tests and other procedures as needed.
  • Participants will be allowed to go home once they have had two negative tests for the virus. The tests will be given on two consecutive days....

Trial Health

87
On Track

Trial Health Score

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

Enrollment
49

participants targeted

Target at P50-P75 for phase_1

Timeline
Completed

Started Feb 2012

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

February 1, 2012

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

July 18, 2012

Completed
2 days until next milestone

First Posted

Study publicly available on registry

July 20, 2012

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2013

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2013

Completed
2.4 years until next milestone

Results Posted

Study results publicly available

May 9, 2016

Completed
Last Updated

May 9, 2016

Status Verified

April 1, 2016

Enrollment Period

1.8 years

First QC Date

July 18, 2012

Results QC Date

July 2, 2015

Last Update Submit

April 5, 2016

Conditions

Keywords

H1N1InfluenzaHumanChallenge StudyHealthy Volunteer

Outcome Measures

Primary Outcomes (1)

  • Percent MMID

    Percent of individuals experiencing mild to moderate influenza infection (MMID, defined as active shedding and symptoms of influenza A) in each dosing group.

    67 days after influenza inoculation

Study Arms (1)

Challenge Virus

EXPERIMENTAL

The Ca/04/2009/H1N1 Vero Grown Challenge Virus was administered intranasally to each participant using a nasal sprayer. A total volume of up to 1 mL of virus will be administered.

Biological: Ca/04/2009/H1N1 Vero Grown Challenge Virus

Interventions

The human challenge virus will be administered intranasally to each participant using a nasal sprayer. A total volume of up to 1 mL of virus will be administered.

Challenge Virus

Eligibility Criteria

Age18 Years - 50 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Greater than or equal to 18 and less than or equal to 50 years of age.
  • Agrees to not use tobacco products during participation in this study.
  • Willingness to remain in isolation for the duration of viral shedding (at a minimum 9 days) and to comply with all study requirements.
  • A female participant is eligible for this study if she is not pregnant or breast feeding and 1 of the following:
  • Of non-childbearing potential (i.e., women who have had a hysterectomy or tubal ligation or are postmenopausal, as defined by no menses in greater than or equal to 1 year).
  • Of childbearing potential but agrees to practice effective contraception or abstinence for 4 weeks prior to and 8 weeks after administration of the influenza challenge virus. Acceptable methods of contraception include 1 or more of the following: 1) male partner who is sterile prior to the female participant s entry into the study and is the sole sexual partner for the female participant; 2) implants of levonorgestrel; 3) injectable progestogen; 4) an intrauterine device with a documented failure rate of \< 1%; 5) oral contraceptives; and 6) double barrier methods including diaphragm or condom with a spermicide.
  • Willing to have samples stored for future research.
  • Prechallenge serum hemagglutination-inhibition titer against the challenge strain of 1:16 or less.
  • HIV uninfected.

You may not qualify if:

  • Presence of self-reported or medically documented significant medical condition including but not limited to:
  • Chronic pulmonary disease (e.g., asthma, emphysema).
  • Chronic cardiovascular disease (e.g., cardiomyopathy, congestive heart failure, cardiac surgery, ischemic heart disease, known anatomic defects).
  • Chronic medical conditions requiring close medical follow-up or hospitalization during the past 5 years (e.g., diabetes mellitus, renal dysfunction, hemoglobinopathies).
  • Immunosuppression or ongoing malignancy.
  • Neurological and neurodevelopmental conditions (e.g., cerebral palsy, epilepsy, stroke, seizures).
  • Postinfectious or postvaccine neurological sequelae.
  • Have close or household (i.e., share the same apartment or house) high-risk contacts including but not limited to:
  • Persons greater than or equal to 65 years of age.
  • Children \< 5 years of age.
  • Residents of nursing homes.
  • Persons of any age with significant chronic medical conditions such as:
  • Chronic pulmonary disease (e.g., asthma).
  • Chronic cardiovascular disease (e.g., cardiomyopathy, congestive heart failure, cardiac surgery, ischemic heart disease, known anatomic defects).
  • Contacts who required medical follow-up or hospitalization during the past 5 years because of chronic metabolic disease (e.g., diabetes mellitus, renal dysfunction, hemoglobinopathies).
  • +21 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Institutes of Health Clinical Center, 9000 Rockville Pike

Bethesda, Maryland, 20892, United States

Location

Related Publications (5)

  • Hayden FG, Fritz R, Lobo MC, Alvord W, Strober W, Straus SE. Local and systemic cytokine responses during experimental human influenza A virus infection. Relation to symptom formation and host defense. J Clin Invest. 1998 Feb 1;101(3):643-9. doi: 10.1172/JCI1355.

    PMID: 9449698BACKGROUND
  • Jameson J, Cruz J, Ennis FA. Human cytotoxic T-lymphocyte repertoire to influenza A viruses. J Virol. 1998 Nov;72(11):8682-9. doi: 10.1128/JVI.72.11.8682-8689.1998.

    PMID: 9765409BACKGROUND
  • McAuley JL, Hornung F, Boyd KL, Smith AM, McKeon R, Bennink J, Yewdell JW, McCullers JA. Expression of the 1918 influenza A virus PB1-F2 enhances the pathogenesis of viral and secondary bacterial pneumonia. Cell Host Microbe. 2007 Oct 11;2(4):240-9. doi: 10.1016/j.chom.2007.09.001.

    PMID: 18005742BACKGROUND
  • Memoli MJ, Han A, Walters KA, Czajkowski L, Reed S, Athota R, Angela Rosas L, Cervantes-Medina A, Park JK, Morens DM, Kash JC, Taubenberger JK. Influenza A Reinfection in Sequential Human Challenge: Implications for Protective Immunity and "Universal" Vaccine Development. Clin Infect Dis. 2020 Feb 14;70(5):748-753. doi: 10.1093/cid/ciz281.

  • Memoli MJ, Czajkowski L, Reed S, Athota R, Bristol T, Proudfoot K, Fargis S, Stein M, Dunfee RL, Shaw PA, Davey RT, Taubenberger JK. Validation of the wild-type influenza A human challenge model H1N1pdMIST: an A(H1N1)pdm09 dose-finding investigational new drug study. Clin Infect Dis. 2015 Mar 1;60(5):693-702. doi: 10.1093/cid/ciu924. Epub 2014 Nov 20.

Related Links

MeSH Terms

Conditions

Influenza, Human

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsOrthomyxoviridae InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract Diseases

Results Point of Contact

Title
Matthew J. Memoli
Organization
National Institute of Allergy and Infectious Diseases

Study Officials

  • Matthew J Memoli, M.D.

    National Institute of Allergy and Infectious Diseases (NIAID)

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
SINGLE GROUP
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 18, 2012

First Posted

July 20, 2012

Study Start

February 1, 2012

Primary Completion

December 1, 2013

Study Completion

December 1, 2013

Last Updated

May 9, 2016

Results First Posted

May 9, 2016

Record last verified: 2016-04

Data Sharing

IPD Sharing
Will share

Data will be shared through the NIH data repository BTRIS - Biomedical Translational Research Information System

Locations