Safety, Reactogenicity, and Immunogenicity of Inactivated Influenza A/H7/N7 Vaccine in Healthy Adults

• Status: Completed
• Trial end date: 2009-02-01
• Target enrollment: 0
• Participant gender: All

Summary

The purpose of this study is to evaluate the safety, any adverse events or side effects, and the body's immune response to an experimental flu vaccine [Inactivated Influenza A/H7N7 Vaccine] being given in increasing doses. Researchers will try to find the smallest dose of flu vaccine needed to cause antibody responses against the flu virus in both single and repeat doses. The study will enroll 125 healthy adults ranging in age from 18 to 40 years old. Subjects will be given 2 doses of the vaccine 28 days apart. Study procedures will include obtaining a medical history, physical exam, blood sample collections, and use of patient memory aids. The volunteers will be in the study for about 7 months.

• Phase: Phase 1/Phase 2
• Accepts Healthy Volunteers?: Accepts Healthy Volunteers

Details

• Lead Sponsor: National Institute of Allergy and Infectious Diseases (NIAID)
• Treatments: Vaccines

Criteria

Inclusion Criteria:

• Male or non-pregnant female (as indicated by a negative urine pregnancy test immediately prior to vaccine administration) between the ages of 18 and 40 years, inclusive.

• Women of childbearing potential (not surgically sterile or postmenopausal for greater than or equal to 1 year) who are at risk of becoming pregnant must agree to practice adequate contraception (i.e., barrier method, abstinence, intrauterine devices, and licensed hormonal methods) for the entire study period.

• Is in good health, as determined by vital signs (heart rate < 100 beats per minute, blood pressure: systolic less than or equal to 140 mm Hg and greater than or equal to 90 mm Hg, diastolic less than or equal to 90 mm Hg; oral temperature < 100 degrees Fahrenheit), medical history to ensure stable* medical condition and a targeted physical examination based on medical history. (*A stable medical condition is defined as no recent change in prescription medication, dose, or frequency of medication in the last 3 months and health outcomes of the specific disease are considered to be within acceptable limits in the last 6 months. Any change that is due to change of health care provider, insurance company, etc, or is done for financial reasons, as long as in the same class of medication, will not be considered a violation of the inclusion criterion. Any change to prescription medication due to improvement of a disease outcome will not be considered a violation of the inclusion criterion.)

• Able to understand and comply with planned study procedures.

• Provide informed consent prior to initiation of any study procedures and are available for all study visits.

Exclusion Criteria:

• Have a known allergy to eggs or other components of the vaccine (including gelatin, formaldehyde, octoxinol, aluminum hydroxide, and chicken protein).

• Have a positive urine or serum pregnancy test prior to vaccination (if female of childbearing potential) or women who are breastfeeding.

• Have immunosuppression as a result of an underlying illness or treatment with immunosuppressive or cytotoxic drugs, or use of anticancer chemotherapy or radiation therapy within the preceding 36 months.

• Have an active neoplastic disease or a history of any hematologic malignancy.

• Have long-term use of oral steroids, parenteral steroids, or high-dose inhaled steroids (>800 micrograms/day of beclomethasone dipropionate or equivalent) within the preceding 6 months (nasal and topical steroids are allowed.)

• Have a history of receiving immunoglobulin or other blood product within the 3 months prior to enrollment in this study.

• Have received any other licensed vaccines within 2 weeks (for inactivated vaccines) or 4 weeks (for live vaccines) prior to vaccination in this study.

• Have an acute or chronic medical condition that, in the opinion of the investigator, would render vaccination unsafe or would interfere with the evaluation of responses. (This includes, but is not limited to: known chronic liver disease, significant renal disease, unstable or progressive neurological disorders, diabetes mellitus, and transplant recipients).

• Have a history of severe reactions following immunization with contemporary influenza virus vaccines.

• Have an acute illness, including an oral temperature greater than 100.4 degrees Fahrenheit, within 1 week of vaccination.

• Received an experimental agent (vaccine, drug, biologic, device, blood product, or medication) within 1 month prior to vaccination in this study, or expect to receive an experimental agent during the 7-month study period.

• Plan to enroll in another clinical trial at any time during the study period.

• Have any condition that would, in the opinion of the site investigator, place the subject at an unacceptable risk of injury or render the subject unable to meet the requirements of the protocol.

• Have a diagnosis of schizophrenia, Bi-polar disease or other major psychiatric diagnosis.

• Have been hospitalized for psychiatric illness, history of suicide attempt or confinement for danger to self or others.

• Are receiving psychiatric drugs*. Subjects who are receiving a single antidepressant drug and stable for at least 3 months prior to enrollment, without de-compensating symptoms will be allowed to be enrolled in the study.

• aripiprazole, clozapine, ziprasidone, haloperidol, molindone, loxapine, thioridazine, thiothixene, pimozide, fluphenazine, risperidone, mesoridazine, quetiapine, trifluoperazine, trifluopromazine, chlorprothixene, chlorpromazine, perphenazine, olanzapine, carbamazepine, divalproex sodium, lithium carbonate or lithium citrate

• Have a known active human immunodeficiency virus, hepatitis B, or hepatitis C infection.

• Have a history of alcohol or drug abuse in the last 5 years.

• Plan to travel outside of the USA in the time between the first vaccination and 56 days following the first vaccination.

• Have a history of Guillain-Barre syndrome.

• Have any condition that the investigator believes may interfere with successful completion of the study.