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VRC 308: An Open-Label Phase I Study of the Safety and Immunogenicity of an Investigational H1 DNA Influenza Vaccine, VRC-FLUDNA057-00-VP, in Healthy Adults 18-70 Years Old

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00973895
Recruitment Status : Completed
First Posted : September 9, 2009
Last Update Posted : July 2, 2017
Information provided by:
National Institutes of Health Clinical Center (CC)

Brief Summary:


  • Vaccines are substances used to try to create resistance (or immunity) to a disease and to prevent an infection. Researchers are testing a new DNA vaccine designed for a new type of influenza, often referred to as swine flu. The DNA vaccine will instruct the body to make a particular kind of influenza protein that the immune system will be able to recognize.
  • Researchers are interested in determining if the vaccine is safe and effective in humans, and would like to study the immune system's response to the vaccine. The vaccine will not give participants influenza; however, it may not be effective in preventing them from getting influenza at a later date.


  • To evaluate the safety and tolerability of the VRC-FLUDNA057-00-VP influenza vaccine as administered to healthy adults.
  • To evaluate antibody responses to the new influenza vaccine.


- Healthy adults between the ages of 18 and 70.


  • Participants will have seven planned clinic visits during this study (enrollment day and study weeks 1, 4, 8, 9, 12, and 32).
  • All participants will receive three injections of the test vaccine, given as individual doses on day 0, day 28, and day 56 of the study. The vaccine will be given in the upper arm muscle.
  • Injections will be given using a needleless system that delivers the vaccine through the skin by using the pressure of carbon dioxide to inject the vaccine through the skin and into the muscle. Participants will remain at the National Institutes of Health (NIH) Clinical Center for at least 30 minutes after the injection to be monitored for any reaction.
  • Participants will be asked to keep a 7-day diary card after each injection to record their physical reactions to the vaccine.
  • Participants will be asked to return to the NIH Clinical Center as requested by researchers for additional blood tests and other procedures, as required by the study.

Condition or disease Intervention/treatment Phase
Influenza A Virus, H1N1 Subtype Novel Swine-Origin Biological: VRC-FLUDNA057-00-VP Phase 1

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 20 participants
Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Official Title: VRC 308: An Open-Label Phase I Study of the Safety and Immunogenicity of an Investigational H1 DNA Influenza Vaccine, VRC-FLUDNA057-00-VP, in Healthy Adults 18-70 Years Old
Study Start Date : August 6, 2009
Actual Primary Completion Date : September 3, 2010
Actual Study Completion Date : September 3, 2010

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Flu Flu Shot

Intervention Details:
  • Biological: VRC-FLUDNA057-00-VP
    DNA Vaccine Expressing H1 HA from Influenza A/California/04/2009 H1N1 Virus

Primary Outcome Measures :
  1. Safety (local and systemic reactogenicity, lab tests, AEs) [ Time Frame: 32 weeks ]

Secondary Outcome Measures :
  1. Immunogenicity (cellular and humoral immune function assays) [ Time Frame: 32 weeks ]

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years to 70 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

    1. 18 to 70 years old.
    2. Available for clinical follow-up through Week 32.
    3. Able to provide proof of identity to the satisfaction of the study clinician completing the enrollment process.
    4. Complete an AoU prior to enrollment and verbalize understanding of all questions answered incorrectly.
    5. Able and willing to complete the informed consent process.
    6. Willing to donate blood for sample storage to be used for future research.
    7. No evidence of previously undiagnosed clinically significant chronic diseases.
    8. Physical examination and laboratory results without clinically significant findings, no fever (greater than or equal to 100.4 degree F) in the 72 hours prior to enrollment, and a Body Mass Index (BMI) greater than or equal to 18 and < 42 within the 56 days prior to enrollment.

      Laboratory Criteria within 56 days prior to enrollment:

    9. Hemoglobin greater than or equal to 11.5 g/dL for women; greater than or equal to 13.5 g/dL for men
    10. White blood cells (WBC) = 3,300-12,000 cells/mm(3)
    11. Differential either within institutional normal range or accompanied by site physician approval as a differential that is consistent with healthy volunteer status
    12. Total lymphocyte count greater than or equal to 800 cells/mm(3)
    13. Platelets = 125,000 - 500,000/mm(3)
    14. Alanine aminotransferase (ALT) less than or equal to 2.5 times upper limit of normal (ULN)
    15. Serum creatinine less than or equal to 1 times ULN (less than or equal to 1.3 mg/dL for females; less than or equal to 1.4 mg/dL for males) and estimated glomerular filtration rate > 60 mL/min/1.73 m(2).
    16. Negative FDA-approved HIV blood test. [Note: Results of HIV enzyme-linked immunosorbent assay (ELISA) will be documented, but a negative HIV polymerase chain reaction (PCR) test result will be sufficient for eligibility screening of subjects with positive HIV ELISA that is due to prior participation in an HIV vaccine study].

      Female-Specific Criteria:

    17. Negative human chorionic gonadotropin (HCG) pregnancy test (urine or serum) for women presumed to be of reproductive potential on the day of enrollment.
    18. A female subject must meet one of the following criteria:

      No reproductive potential because of menopause [one year without menses] or because of a hysterectomy, bilateral oophorectomy, or tubal ligation,


      Agrees to be heterosexually inactive at least 21 days prior to enrollment and through Week 32 of the study,


      Agrees to consistently practice contraception at least 21 days prior to enrollment and through Week 32 of the study by one of the following methods:

      (Bullet) condoms, male or female, with or without a spermicide;

      (Bullet) diaphragm or cervical cap with spermicide;

      (Bullet) intrauterine device;

      (Bullet) contraceptive pills, patch, implant or any other FDA-approved contraceptive method;

      (Bullet) male partner has previously undergone a vasectomy.


      Women Specific:

    1. Breast-feeding or planning to become pregnant during the first 32 weeks after enrollment in the study.

      Subject has received any of the following substances:

    2. Systemic immunosuppressive medications or cytotoxic medications within the 12 weeks prior to enrollment. [With the exceptions that a short course (duration of 10 days or less or a single injection) of corticosteroids for a self-limited condition at least 2 weeks prior to enrollment in this study will not exclude study participation.]
    3. Blood products within 112 days (16 weeks) prior to HIV screening
    4. Immunoglobulin within 56 days (8 weeks) prior to HIV screening
    5. Live attenuated vaccines within 28 days (4 weeks) prior to initial study vaccine administration
    6. Investigational research agents within 28 days (4 weeks) prior to initial study vaccine administration
    7. Medically indicated subunit or killed vaccines (e.g., pneumococcal, or allergy treatment with antigen injections) within 14 days (2 weeks) of initial study vaccine administration
    8. Current anti-TB prophylaxis or therapy

      Subject has a history of any of the following clinically significant conditions:

    9. Serious reactions to vaccines that preclude receipt of study vaccinations as determined by investigator.
    10. Hereditary angioedema (HAE), acquired angioedema (AAE), or idiopathic forms of angioedema.
    11. Asthma that is severe, unstable or required emergent care, urgent care, hospitalization or intubation during the past two years or that requires the use of oral, intravenous, or high dose inhaled corticosteroids.
    12. Diabetes mellitus type I.
    13. Thyroid disease that is not well-controlled.
    14. Generalized idiopathic urticaria within the last 1 year.
    15. Hypertension that is not well controlled by medication or is more than 145/95 at enrollment.

    16 Bleeding disorder diagnosed by a doctor (e.g. factor deficiency, coagulopathy, or platelet disorder requiring special precautions) or significant bruising or bleeding difficulties with IM injections or blood draws.

    17. Malignancy that is active or treated malignancy for which there is not reasonable assurance of sustained cure or malignancy that is likely to recur during the period of the study.

    18. Seizure disorder other than: 1) febrile seizures, 2) seizures secondary to alcohol withdrawal more than 3 years ago, or 3) seizures that have not required treatment within the last 3 years.

    19. Asplenia, functional asplenia or any condition resulting in the absence or removal of the spleen.

    20. Guillain-Barr Syndrome.

    21.Psychiatric condition that precludes compliance with the protocol; past or present psychoses; past or present bipolar disorder; disorder requiring lithium; or within 5 years prior to enrollment, a history of suicide plan or attempt.

    22. Any medical, psychiatric, social condition, occupational reason or other responsibility that, in the judgment of the investigator, is a contraindication to protocol participation or impairs a volunteer's ability to give informed consent.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00973895

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United States, Maryland
National Institutes of Health Clinical Center, 9000 Rockville Pike
Bethesda, Maryland, United States, 20892
Sponsors and Collaborators
National Institute of Allergy and Infectious Diseases (NIAID)
Publications automatically indexed to this study by Identifier (NCT Number):
Layout table for additonal information Identifier: NCT00973895    
Other Study ID Numbers: 090204
First Posted: September 9, 2009    Key Record Dates
Last Update Posted: July 2, 2017
Last Verified: September 3, 2010
Keywords provided by National Institutes of Health Clinical Center (CC):
Additional relevant MeSH terms:
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Influenza, Human
Orthomyxoviridae Infections
RNA Virus Infections
Virus Diseases
Respiratory Tract Infections
Respiratory Tract Diseases