- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00379938
B-19 Parvovirus Vaccine Study
August 11, 2011 updated by: National Institute of Allergy and Infectious Diseases (NIAID)
A Phase I/II Study of the Safety and Immunogenicity of a Recombinant Human Parvovirus B-19 Vaccine
This study investigates the safety and effectiveness of a preventative vaccine for parvovirus B-19 infection.
Eighty-nine healthy adults ages 18-49, whose blood tests negative for B-19, will be enrolled.
Participants will be randomly chosen to receive 1 of 4 possible vaccine types: low dose of the vaccine and an adjuvant (substance which assists with transfer of medication to body); high dose of the vaccine alone; high dose of the vaccine and an adjuvant; or saline (substance containing no medication).
Participants will receive 3 vaccinations over a 6 month period and will be followed for 6 additional months.
Blood samples will be taken at months 1, 2, 6, 7 and 12 to determine if antibody, protein produced by the body's immune system that recognizes and helps fight infections, has been formed to the vaccine.
These tests measure vaccine efficacy, i.e., determine if the vaccine induces immunity.
All participants will be followed closely for safety throughout the study.
Study Overview
Status
Terminated
Conditions
Intervention / Treatment
Detailed Description
This study is a Phase I/II randomized, placebo-controlled, double-blind clinical trial of the immunogenicity and safety of 2 dose levels of a recombinant human parvovirus B-19 vaccine (VAI-VP705).
The vaccine is composed of viral capsids that incorporate 2 B-19 proteins (VP-1 and VP-2).
There will be 3 sites participating in this study: Cincinnati Children's Hospital Medical Center, Baylor College of Medicine, and the University of Maryland School of Medicine.
Eighty-nine parvovirus B-19 seronegative healthy adults 18-45 years old will be randomized to 1 of 4 groups: 2.5 mcg VAI-VP705 with the adjuvant MF59, 25 mcg with the adjuvant MF59, 25 mcg without the adjuvant MF59, or placebo (saline control).
Each participant will receive 3 separate vaccinations (Months 0, 1, and 6) and will continue in the study for up to approximately 14 months.
Study participants will be followed to evaluate safety and immune response.
The primary study objective is to evaluate the safety of VAI-VP705 administered with and without MF59 adjuvant in healthy parvovirus B-19 seronegative adults.
The secondary study objectives are to: evaluate the immunogenicity of primary and booster immunizations of 25 mcg of VAI VP705 with and without MF59 and 2.5 mcg with MF59; compare the antibody response of vaccine administered with MF59 at each of 2 doses, 2.5 and 25 mcg versus 25 mcg of vaccine administered without MF59; and evaluate the duration of the immune response 12 months after primary immunization.
The primary endpoint is the number and percentage of study participants who experience any vaccine-associated adverse events or serious adverse events.
The secondary endpoints include: the percentage of study participants who develop neutralizing antibody responses against parvovirus B-19 28 days following the last dose of vaccine; the percentage of study participants who maintain a neutralizing antibody titer at 12 months after primary immunization; the geometric mean antibody titers (as measured by enzyme-linked immunosorbent assay) by treatment group at 28 days and at 12 months after primary immunization; and the geometric mean neutralizing titers per treatment group at 28 days and at 12 months after primary immunization.
Study Type
Interventional
Enrollment (Actual)
43
Phase
- Phase 2
- Phase 1
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
Maryland
-
Baltimore, Maryland, United States, 21201
- University of Maryland School of Medicine
-
-
Ohio
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Cincinnati, Ohio, United States, 45229-3039
- Cincinnati Children's Hospital Medical Center
-
-
Texas
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Houston, Texas, United States, 77030
- Baylor College of Medicine
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 45 years (ADULT)
Accepts Healthy Volunteers
Yes
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Must be able to provide informed consent;
- Must be between the ages of 18 to 45 at time of randomization;
- Must be in good health, as determined by vital signs (heart rate, blood pressure, respiration, and oral temperature), medical history, and a targeted physical examination based on medical history;
- Must have a negative serum pregnancy test at screening and negative urine pregnancy test prior to each vaccination (females);
- Must be medically or surgically sterile or agree to practice effective contraception (egg, oral contraceptives, diaphragm in combination with contraceptive jelly, cream, or foam; intrauterine contraceptive device; Depo-Provera; skin patch; vaginal ring or cervical cap) through 30 days after the final dose of study drug. Oral and hormonal contraceptives must be initiated at least 30 days prior to first dose of study drug and must continue through 30 days after the final dose of study drug;
- Must have a negative hepatitis B surface antigen (HBsAg) and hepatitis C virus (HCV) and HIV antibodies [by Enzyme-Linked Immunosorbent Assay (ELISA) and confirmed if positive by Western blot analysis [WBA]) prior to randomization);
- Must be seronegative for parvovirus B-19 by enzyme-linked immunosorbent assay [ELISA] prior to randomization.
Exclusion Criteria:
- Acute febrile illness (greater than or equal to 37.8 degrees Celcius/100 degrees Fahrenheit) within the 72 hours preceding the vaccination (vaccine may be deferred until resolved);
- Known exposure to persons with parvovirus B-19 (egg, fifth disease) within 6 weeks prior to randomization;
- Illness associated with parvovirus B-19 infection within 6 weeks prior to randomization;
- History of severe adverse reaction or allergy to any vaccine;
- Known or suspected allergies to vaccine constituents (egg, MF59);
- History of treatment with immunosuppressive drugs in the 30 days prior to enrollment (inhaled or topical corticosteroids are permitted) or for 28 days following last dose of vaccine;
- Treatment with blood or blood products within 3 months prior to enrollment or throughout the duration of the study;
- History of polyarthritis;
- A history or clinical manifestation of significant immunodeficiency, metabolic, pulmonary, cardiovascular, hepatic, renal, hematologic (including hereditary and hemolytic anemias), or gastrointestinal disorders;
Clinically significant abnormal laboratory values at Screening including the following:
- Hgb <11.5 g/dL (females) or 12.5 g/dL (males); white blood cell (WBC) <4000/microliters; platelet count <135000/microliters;
- Alanine aminotransferase (ALT) or creatinine above the upper limits of normal.
- Any acute or chronic condition (including alcohol or drug abuse) that in the principal investigator's (PIs) opinion would limit the volunteer's ability to complete the study;
- Pregnant or breastfeeding;
- Receipt or planned receipt of any investigational drug, vaccine (exclusive of the vaccine under study), device or intervention within 30 days prior to randomization or through the 6 months following the last dose of study vaccine;
- Receipt of any licensed killed vaccine within 2 weeks before or after any dose of study vaccine;
- Receipt of any licensed, live, attenuated vaccine within 4 weeks before or after any dose of study vaccine;
- Any other condition that, in the opinion of the investigators, would place the subject at an unacceptable risk for participation in the study.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: PREVENTION
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: DOUBLE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: 1
25 micrograms + MF59 (n=26)
|
Recombinant human parvovirus B-19 capsids at dose levels: 25 micrograms of VAI-VP705 with and without MF59 adjuvant and 2.5 micrograms with MF59 adjuvant.
Adjuvant
|
EXPERIMENTAL: 3
2.5 micrograms + MF59 (n=26)
|
Recombinant human parvovirus B-19 capsids at dose levels: 25 micrograms of VAI-VP705 with and without MF59 adjuvant and 2.5 micrograms with MF59 adjuvant.
Adjuvant
|
PLACEBO_COMPARATOR: 4
saline (n=11)
|
Saline control
|
EXPERIMENTAL: 2
25 micrograms alone (n=26)
|
Recombinant human parvovirus B-19 capsids at dose levels: 25 micrograms of VAI-VP705 with and without MF59 adjuvant and 2.5 micrograms with MF59 adjuvant.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Number and percentage of study participants who experience any vaccine-associated AEs or SAEs.
Time Frame: Duration of study
|
Duration of study
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Geometric mean antibody titers (measured by Enzyme-Linked Immunosorbent Assay) by treatment group.
Time Frame: 28 days and 12 months after the primary immunization
|
28 days and 12 months after the primary immunization
|
Percentage of study participants who develop neutralizing antibody responses against parvovirus B-19.
Time Frame: 28 days following the last dose of vaccine
|
28 days following the last dose of vaccine
|
Percentage of study participants who maintain a neutralizing antibody titer.
Time Frame: 12 months after the primary immunization
|
12 months after the primary immunization
|
Geometric mean neutralizing titer per treatment group.
Time Frame: 28 days and 12 months after the primary immunization
|
28 days and 12 months after the primary immunization
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
August 1, 2006
Primary Completion (ACTUAL)
October 1, 2008
Study Completion (ACTUAL)
October 1, 2008
Study Registration Dates
First Submitted
September 21, 2006
First Submitted That Met QC Criteria
September 21, 2006
First Posted (ESTIMATE)
September 25, 2006
Study Record Updates
Last Update Posted (ESTIMATE)
August 15, 2011
Last Update Submitted That Met QC Criteria
August 11, 2011
Last Verified
February 1, 2009
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 05-0078
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.
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