Randomized Single-Blinded Study to Evaluate Safety and Immunogenicity of Recombinant Plague Vaccine With and Without Adjuvant

NCT ID: NCT01122784

Last Updated: 2020-07-30

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

402 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-07-31

Study Completion Date

2012-07-31

Brief Summary

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Multicenter, randomized, single-blinded comparison of two formulations of the rF1V vaccine at a single dosage of 80 µg and two 3-dose schedules in 400 healthy, adult volunteers in four parallel cohorts. Two rF1V vaccine cohorts (N=160 each) and two rF1V antigen-only cohorts (N=40 each) will be vaccinated at two different three-dose schedules (Days 0, 56 and 182 or Days 0, 56 and 121).

Detailed Description

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The objectives of this trial are: to compare the safety of rF1V vaccine administered in two different schedules through 28 days after each vaccination and cumulatively to Day 210; to compare the immunogenicity of rF1V vaccine administered in two different schedules through 28 days after Vaccination 3; to compare the safety and immunogenicity of rF1V vaccine administered by two different schedules through 12 months after Vaccination 3; and to assess the contribution of the adjuvant to the immunogenicity of the rF1V antigen.

Conditions

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Plague Vaccine

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

SINGLE

Participants

Study Groups

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Group 1

160 Volunteers will be vaccinated with 80 mcg rF1V vaccine with adjuvant at Study Days 0, 56 and 182

Group Type ACTIVE_COMPARATOR

rF1V vaccine (with Adjuvant)

Intervention Type BIOLOGICAL

80 mcg rF1V vaccine with adjuvant given by intramuscular (IM) injection into the arm on Study Days 0, 56 and 182

Group 2

40 Volunteers will be vaccinated with 80 mcg rF1V vaccine without adjuvant at Study Days 0, 56 and 182

Group Type ACTIVE_COMPARATOR

rF1V vaccine (without Adjuvant)

Intervention Type BIOLOGICAL

80 mcg rF1V vaccine without adjuvant given by intramuscular (IM) injection into the arm on Study Days 0, 56 and 182

Group 3

160 Volunteers will be vaccinated with 80 mcg rF1V vaccine with adjuvant at Study Days 0, 56 and 121

Group Type ACTIVE_COMPARATOR

rF1V vaccine (with Adjuvant)

Intervention Type BIOLOGICAL

80 mcg rF1V vaccine with adjuvant given by intramuscular (IM) injection into the arm on Study Days 0, 56 and 121

Group 4

40 Volunteers will be vaccinated with 80 mcg rF1V vaccine without adjuvant at Study Days 0, 56 and 121

Group Type ACTIVE_COMPARATOR

rF1V vaccine (without Adjuvant)

Intervention Type BIOLOGICAL

80 mcg rF1V vaccine without adjuvant given by intramuscular (IM) injection into the arm on Study Days 0, 56 and 121

Interventions

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rF1V vaccine (with Adjuvant)

80 mcg rF1V vaccine with adjuvant given by intramuscular (IM) injection into the arm on Study Days 0, 56 and 182

Intervention Type BIOLOGICAL

rF1V vaccine (without Adjuvant)

80 mcg rF1V vaccine without adjuvant given by intramuscular (IM) injection into the arm on Study Days 0, 56 and 182

Intervention Type BIOLOGICAL

rF1V vaccine (with Adjuvant)

80 mcg rF1V vaccine with adjuvant given by intramuscular (IM) injection into the arm on Study Days 0, 56 and 121

Intervention Type BIOLOGICAL

rF1V vaccine (without Adjuvant)

80 mcg rF1V vaccine without adjuvant given by intramuscular (IM) injection into the arm on Study Days 0, 56 and 121

Intervention Type BIOLOGICAL

Other Intervention Names

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Recombinant Plague Vaccine rF1V Recombinant Plague Vaccine rF1V without Adjuvant Recombinant Plague Vaccine rF1V Recombinant Plague Vaccine rF1V without Adjuvant

Eligibility Criteria

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Inclusion Criteria

1. The volunteer has signed the ICF and the HIPAA authorization and has successfully completed (at least 90% correct) the Test of Understanding.
2. The volunteer is a male or female 18 to 55 years of age (inclusive) at the time of the screening visit.
3. The volunteer is in good health as determined by the screening physician based upon medical history and physical examination, including vital signs within acceptable ranges.
4. The volunteer has acceptable ranges for the laboratory parameters.
5. The volunteer has no clinically significant abnormalities on ECG.
6. The volunteer agrees not to donate blood, plasma or blood components for therapeutic or research purposes, except to meet requirements of this study, at any time during the course of the study.
7. The volunteer is willing to have his or her blood samples stored for future plague research studies.
8. The volunteer is willing to comply with the requirements of the protocol through the end of the study.
9. Female volunteers must be of non-childbearing potential or, if of childbearing potential, must not be pregnant or lactating and must use acceptable contraception.

Exclusion Criteria

1. History of plague exposure or disease or previous vaccination with any plague vaccine.
2. History of allergy to kanamycin or other aminoglycosides (e.g., gentamicin, tobramycin, amikacin).
3. History of anaphylaxis or other serious adverse reactions to vaccines or aluminum.
4. Active tuberculosis or other systemic infectious process by review of systems and PE.
5. History of chronic illness requiring continuous or frequent medical intervention or acute/chronic untreated conditions, multiple sclerosis, immunodeficiency, autoimmune or immunosuppressive disease or use of immunosuppressive medications.
6. Diabetes mellitus of any type requiring treatment with insulin or oral hypoglycemic drugs.
7. History of chronic, severe or recurrent joint pain (four or more clinically significant occurrences per year requiring treatment for remission) or arthritis of any etiology other than osteoarthritis.
8. Previous diagnosis of any serious psychiatric disorder.
9. Acute illness, evidence of significant active infection or evidence of systemic disease at the time of enrollment.
10. Oral temperature \> 99.5°F.
11. Receipt of chemotherapeutic and immunosuppressive agents, including high-dose systemic glucocorticoids (i.e., prednisone-equivalent dose of \> 20 mg/day).
12. Receipt of blood, any blood product or immune globulin.
13. Receipt of any investigational drug therapy or investigational implantable device or intent to receive any other investigational drug therapy or device throughout their study participation.
14. Receipt of any investigational vaccine.
15. Receipt or intent of any licensed nonliving vaccine.
16. Receipt of any licensed live vaccine within 60 days before Vaccination 1
17. Donation of more than 400 mL of blood 8 weeks before Vaccination 1.
18. Occupational or other responsibilities that would prevent completion of participation in the study.
19. Weight or body mass index (BMI) outside acceptable ranges.
20. Positive screening laboratory test for HIV antibody, HCV antibody or HBsAg.
21. A positive result on a urine drug screen that tests for common substances of abuse.
22. Female volunteer is pregnant or lactating.
23. The volunteer is currently on active duty in the U.S. military, or a member or relative of the clinical site study staff.
Minimum Eligible Age

18 Years

Maximum Eligible Age

55 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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DynPort Vaccine Company LLC, A GDIT Company

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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George Saviolakis, MD

Role: STUDY_DIRECTOR

DynPort Vaccine Company, a CSC Company

Locations

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Benchmark Research

San Francisco, California, United States

Site Status

Apex Research Institute

Santa Ana, California, United States

Site Status

Johnson County Clinical Trials

Lenexa, Kansas, United States

Site Status

Heartland Reseach Assoicates, LLC

Wichita, Kansas, United States

Site Status

Central Kentucky Research Associates

Lexington, Kentucky, United States

Site Status

WRAIR Clinical Trials Center

Silver Spring, Maryland, United States

Site Status

Center for Pharmceutical Research

Kansas City, Missouri, United States

Site Status

Rochester Clinical Research

Rochester, New York, United States

Site Status

Wake Research Associates

Raleigh, North Carolina, United States

Site Status

Coastal Carolina Research Center

Mt. Pleasant, South Carolina, United States

Site Status

New Orleans Center for Clinical Research

Knoxville, Tennessee, United States

Site Status

Countries

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United States

Other Identifiers

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rF1V-02b

Identifier Type: -

Identifier Source: org_study_id

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