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A/H5N1/LT Dose Ranging Study

Primary Purpose

Pandemic Influenza

Status
Completed
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
A/H5N1
A/H5N1
LT Adjuvant Patch
LT Adjuvant Patch
Sponsored by
Intercell USA, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Pandemic Influenza

Eligibility Criteria

18 Years - 49 Years (Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  • Healthy adult male or females 18 to 49 years of age (inclusive)
  • Signed Informed Consent
  • Women who are not post-menopausal or surgically sterile must have a negative serum or urine pregnancy test at screening and within 24 hours of vaccination with understanding (through informed Consent process) to not become pregnant over the duration of the study, and must agree to employ an effective form of birth control for the duration of the study. Acceptable forms of birth control are: abstinence, hormonal contraceptives (oral, injectable, implant, patch, ring), double-barrier contraceptives (condom or diaphragm, with spermicide) and IUD

Exclusion Criteria:

  • Clinically significant laboratory abnormalities at screening
  • Abnormalities at physical examination [as determined by the Toxicity Grading Scale (grade 1-4)]
  • Known allergies to any component of the vaccine
  • Known egg protein allergy
  • Known allergies to adhesives
  • Known disturbance of coagulation
  • Participated in research involving investigational product within 45 days before planned date of vaccination
  • Donated or received blood or blood products such as plasma within the past 45 days
  • Received any licensed vaccines within 2 weeks (for inactivated vaccines) or 4 weeks (for live vaccines) prior to planned date of vaccination
  • Ever received investigational enterotoxigenic E. coli, or LT (R192G) or NasalFlu, Berna Biotech Ltd
  • Ever received cholera toxin or vaccine (e.g. Orochol, Dukoral)
  • History of abdominal surgery (excluding C-Section, hysterectomy, cosmetic surgery, liposuction, appendectomy, cholecystectomy, ventral hernia repair, and other surgeries not pertaining to gastrointestinal problems) or history of, or recent acute gastrointestinal (GI) illness
  • Previous vaccination with a pandemic vaccine or previous proven contact with A/H5N1 wild type virus (contact with an individual with laboratory-confirmed A/H5N1 infection or contact with an animal which died as a result of A/H5N1 infection)
  • Recent or regular use of oral, topical or injected steroid medications within 45 days prior to vaccination
  • Use of immunosuppressive systemic steroid medications including inhaled steroids within three months prior to vaccination
  • Comorbid conditions or treatments that are immunosuppressive, including cancer, diabetes, and end-stage renal disease, as determined by the Investigator
  • Positive serology for HIV-1, HIV-2, HBsAg, or HCV
  • History of severe atopy
  • Medical history of acute or chronic skin disease at vaccination area
  • Active skin allergy
  • Signs of acute skin infection, sunburn or skin abnormalities at the vaccination area including fungal infections, severe acne, active contact dermatitis, or a history of keloid formation
  • Hirsute (significant amount of hair) at vaccination area
  • Artificial tanning (UV radiation) over the duration of the study including the screening period
  • Visible tattoos or marks (tattoos/scars) at the vaccination area that would prevent appropriate dermatologic monitoring of the vaccination site
  • Fever greater than or equal to 38.0°C (100.4°F) at the time of planned vaccination
  • Suspicion of or recent history (within one year of planned vaccination) of alcohol or substance abuse
  • Women who are pregnant or breastfeeding
  • Acute illness at screening or at baseline
  • Ever had a serious reaction to prior influenza vaccination
  • Developed a neurological disorder (such as Guillian Barré syndrome) in the six weeks following a previous influenza vaccination
  • Medical history of achlorhydria
  • Employee of the investigational site or sponsor
  • History of employment in bird or poultry industries or considerable exposure to birds (e.g. poultry or avian veterinarians, bird breeders, poultry butchers and/or culler, etc.)

Sites / Locations

  • Advanced Clinical Research Institute
  • Solano Clinical Research
  • Miami Research Associates
  • Accelovance
  • Johnson County Clinical Trials
  • Jean Brown Research

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm 6

Arm Type

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Arm Label

Group 1: 30 µg HA, no LT patch

Group 2: 30 µg HA + 50 µg LT patch

Group 3: 30 µg HA + 100 µg LT patch

Group 4: 45 µg HA, no LT patch

Group 5: 45 µg HA + 50 µg LT patch

Group 6: 45 µg HA + 100 µg LT patch

Arm Description

A/H5N1 Vaccine 30 µg HA i.m. on Day 0

A/H5N1 Vaccine 30 µg HA i.m. + LT adjuvant patch containing 50 µg of LT on Day 0

A/H5N1 Vaccine 30 µg HA i.m. + LT adjuvant patch containing 100 µg of LT on Day 0

A/H5N1 Vaccine 45 µg HA i.m. on Day 0

A/H5N1 Vaccine 45 µg HA i.m. + LT adjuvant patch containing 50 µg of LT on Day 0

A/H5N1 Vaccine 45 µg HA i.m. + LT adjuvant patch containing 100 µg of LT on Day 0

Outcomes

Primary Outcome Measures

Assess the Proportion of Subjects in Each Dose Group Achieving Seroconversion and Seroprotection for HI Antibody Titer Through Day 28.
Seroconversion is defined as either 1) baseline HI titer < 1:10 and a post-vaccination HI titer ≥ 1:40, or 2) baseline HI titer ≥ 1:10 and a minimum four-fold rise. Seroprotection is defined as a post-vaccination HI antibody titer ≥ 1:40. FDA/EMEA criterion for seroconversion was to meet or exceed 40%. FDA/EMEA criterion for seroprotection was to meet or exceed 70%.

Secondary Outcome Measures

Safety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant Patch
Evaluate Treatment Group HI Responses Against US FDA Guidance for Industry: Clinical Data Needed to Support the Licensure of Pandemic Influenza Vaccines (May 2007) and EMA CPMP/BWP/214/96 Criteria for Immunogenicity

Full Information

First Posted
May 22, 2009
Last Updated
December 9, 2021
Sponsor
Intercell USA, Inc.
Collaborators
Department of Health and Human Services
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1. Study Identification

Unique Protocol Identification Number
NCT00908687
Brief Title
A/H5N1/LT Dose Ranging Study
Official Title
A Randomized Blinded, LT Dose-ranging Study to Assess the Immunogenicity and Safety of Different Doses of LT Adjuvant Patch Administered in Conjunction With Different Doses of Inactivated Influenza A/H5N1 Vaccine in Healthy Adults
Study Type
Interventional

2. Study Status

Record Verification Date
December 2021
Overall Recruitment Status
Completed
Study Start Date
May 2009 (undefined)
Primary Completion Date
January 2010 (Actual)
Study Completion Date
July 2011 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Intercell USA, Inc.
Collaborators
Department of Health and Human Services

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This is a Phase 2, randomized, blinded, clinical trial. Up to 500 eligible subjects will be enrolled and randomized in a 1:2:2:1:2:2 ratio into one of six groups, and vaccinated in this study. Subjects will receive an intramuscular injection of the influenza A/H5N1 (low or high dose) on Day 0 with or without a patch (low or high dose).

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Pandemic Influenza

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
500 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Group 1: 30 µg HA, no LT patch
Arm Type
Experimental
Arm Description
A/H5N1 Vaccine 30 µg HA i.m. on Day 0
Arm Title
Group 2: 30 µg HA + 50 µg LT patch
Arm Type
Experimental
Arm Description
A/H5N1 Vaccine 30 µg HA i.m. + LT adjuvant patch containing 50 µg of LT on Day 0
Arm Title
Group 3: 30 µg HA + 100 µg LT patch
Arm Type
Experimental
Arm Description
A/H5N1 Vaccine 30 µg HA i.m. + LT adjuvant patch containing 100 µg of LT on Day 0
Arm Title
Group 4: 45 µg HA, no LT patch
Arm Type
Experimental
Arm Description
A/H5N1 Vaccine 45 µg HA i.m. on Day 0
Arm Title
Group 5: 45 µg HA + 50 µg LT patch
Arm Type
Experimental
Arm Description
A/H5N1 Vaccine 45 µg HA i.m. + LT adjuvant patch containing 50 µg of LT on Day 0
Arm Title
Group 6: 45 µg HA + 100 µg LT patch
Arm Type
Experimental
Arm Description
A/H5N1 Vaccine 45 µg HA i.m. + LT adjuvant patch containing 100 µg of LT on Day 0
Intervention Type
Biological
Intervention Name(s)
A/H5N1
Intervention Description
A/H5N1 Low Dose
Intervention Type
Biological
Intervention Name(s)
A/H5N1
Intervention Description
A/H5N1 High Dose
Intervention Type
Biological
Intervention Name(s)
LT Adjuvant Patch
Intervention Description
LT Adjuvant Patch Low Dose
Intervention Type
Biological
Intervention Name(s)
LT Adjuvant Patch
Intervention Description
LT Adjuvant Patch High Dose
Primary Outcome Measure Information:
Title
Assess the Proportion of Subjects in Each Dose Group Achieving Seroconversion and Seroprotection for HI Antibody Titer Through Day 28.
Description
Seroconversion is defined as either 1) baseline HI titer < 1:10 and a post-vaccination HI titer ≥ 1:40, or 2) baseline HI titer ≥ 1:10 and a minimum four-fold rise. Seroprotection is defined as a post-vaccination HI antibody titer ≥ 1:40. FDA/EMEA criterion for seroconversion was to meet or exceed 40%. FDA/EMEA criterion for seroprotection was to meet or exceed 70%.
Time Frame
Day 28
Secondary Outcome Measure Information:
Title
Safety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant Patch
Time Frame
6 months
Title
Evaluate Treatment Group HI Responses Against US FDA Guidance for Industry: Clinical Data Needed to Support the Licensure of Pandemic Influenza Vaccines (May 2007) and EMA CPMP/BWP/214/96 Criteria for Immunogenicity
Time Frame
Day 28

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
49 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Healthy adult male or females 18 to 49 years of age (inclusive) Signed Informed Consent Women who are not post-menopausal or surgically sterile must have a negative serum or urine pregnancy test at screening and within 24 hours of vaccination with understanding (through informed Consent process) to not become pregnant over the duration of the study, and must agree to employ an effective form of birth control for the duration of the study. Acceptable forms of birth control are: abstinence, hormonal contraceptives (oral, injectable, implant, patch, ring), double-barrier contraceptives (condom or diaphragm, with spermicide) and IUD Exclusion Criteria: Clinically significant laboratory abnormalities at screening Abnormalities at physical examination [as determined by the Toxicity Grading Scale (grade 1-4)] Known allergies to any component of the vaccine Known egg protein allergy Known allergies to adhesives Known disturbance of coagulation Participated in research involving investigational product within 45 days before planned date of vaccination Donated or received blood or blood products such as plasma within the past 45 days Received any licensed vaccines within 2 weeks (for inactivated vaccines) or 4 weeks (for live vaccines) prior to planned date of vaccination Ever received investigational enterotoxigenic E. coli, or LT (R192G) or NasalFlu, Berna Biotech Ltd Ever received cholera toxin or vaccine (e.g. Orochol, Dukoral) History of abdominal surgery (excluding C-Section, hysterectomy, cosmetic surgery, liposuction, appendectomy, cholecystectomy, ventral hernia repair, and other surgeries not pertaining to gastrointestinal problems) or history of, or recent acute gastrointestinal (GI) illness Previous vaccination with a pandemic vaccine or previous proven contact with A/H5N1 wild type virus (contact with an individual with laboratory-confirmed A/H5N1 infection or contact with an animal which died as a result of A/H5N1 infection) Recent or regular use of oral, topical or injected steroid medications within 45 days prior to vaccination Use of immunosuppressive systemic steroid medications including inhaled steroids within three months prior to vaccination Comorbid conditions or treatments that are immunosuppressive, including cancer, diabetes, and end-stage renal disease, as determined by the Investigator Positive serology for HIV-1, HIV-2, HBsAg, or HCV History of severe atopy Medical history of acute or chronic skin disease at vaccination area Active skin allergy Signs of acute skin infection, sunburn or skin abnormalities at the vaccination area including fungal infections, severe acne, active contact dermatitis, or a history of keloid formation Hirsute (significant amount of hair) at vaccination area Artificial tanning (UV radiation) over the duration of the study including the screening period Visible tattoos or marks (tattoos/scars) at the vaccination area that would prevent appropriate dermatologic monitoring of the vaccination site Fever greater than or equal to 38.0°C (100.4°F) at the time of planned vaccination Suspicion of or recent history (within one year of planned vaccination) of alcohol or substance abuse Women who are pregnant or breastfeeding Acute illness at screening or at baseline Ever had a serious reaction to prior influenza vaccination Developed a neurological disorder (such as Guillian Barré syndrome) in the six weeks following a previous influenza vaccination Medical history of achlorhydria Employee of the investigational site or sponsor History of employment in bird or poultry industries or considerable exposure to birds (e.g. poultry or avian veterinarians, bird breeders, poultry butchers and/or culler, etc.)
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Eric Sheldon, MD
Organizational Affiliation
Miami Research Associates
Official's Role
Principal Investigator
Facility Information:
Facility Name
Advanced Clinical Research Institute
City
Anaheim
State/Province
California
ZIP/Postal Code
92801
Country
United States
Facility Name
Solano Clinical Research
City
Vallejo
State/Province
California
ZIP/Postal Code
94589
Country
United States
Facility Name
Miami Research Associates
City
Miami
State/Province
Florida
ZIP/Postal Code
33143
Country
United States
Facility Name
Accelovance
City
South Bend
State/Province
Indiana
ZIP/Postal Code
46601
Country
United States
Facility Name
Johnson County Clinical Trials
City
Lenexa
State/Province
Kansas
ZIP/Postal Code
66219
Country
United States
Facility Name
Jean Brown Research
City
Salt Lake City
State/Province
Utah
ZIP/Postal Code
84124
Country
United States

12. IPD Sharing Statement

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A/H5N1/LT Dose Ranging Study

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