A Phase I Study of Safety and Immunogenicity of the WRAIR HIV-1 Vaccine
HIV Infections

About this trial
This is an interventional prevention trial for HIV Infections focused on measuring HIV, Lfn-p24, Anthrax, IM, HIV-1, HIV Preventive Vaccine
Eligibility Criteria
Inclusion Criteria:
- Citizens of the U.S.A. who are not at high-risk for HIV infection.
- Age: 18 through 45 years of age.
- For women, negative serum pregnancy test will be required within two days prior to any injection, as well as verbal assurance that adequate contraceptive measures are applied.
- Good health as determined by medical history, physical examination, and clinical judgment.
Clinical laboratory values at screening within the following ranges:
- Hematocrit: Women: > 34%: Men >38% (Mild anemia in any potential trial volunteer who is otherwise healthy attributable by appropriate laboratory studies to thalassemia minor will not be cause for exclusion)
- White blood cell count: 3,000 to 12,000 cells/mm3
- Platelets: 125,000 to 550,000 per mm3
- Chemistry Panel: Expanded chemistry panel within institutional normal ranges or accompanied by site physician approval.
- Urine dipstick for protein and blood: negative or trace. If either is ≥ 1+, obtain complete urinalysis (UA). If microscopic UA confirms evidence of hematuria or proteinuria ≥ 1+, the volunteer is ineligible unless menstruating, then a repeat UA is required.
- Negative serology for HIV infection (ELISA test).
- Availability for at least 52 weeks
- Successful completion of the Test of Understanding, Commitment for Trial Participation and signature of the approved Trial Consent Form.
Exclusion Criteria:
- Acknowledge engaging in highest-risk behavior within 48 weeks of study entry: (i.e., active injecting drug use or having sexual intercourse with a known HIV-1 infected partner).
- Have active tuberculosis or other systemic infectious process by review of systems and physical examination.
- Have a history of immunodeficiency, chronic illness requiring continuous or frequent medical intervention, autoimmune disease, or use of immunosuppressive medications.
- Have evidence of psychiatric, medical and/or substance abuse problems during the past 48 weeks that the investigator believes would adversely affect the volunteer's ability to participate in the trial.
- Have occupational or other responsibilities that would prevent completion of participation in the study.
- Have received any live, attenuated vaccine within 60 days of study entry.
- NOTE: Medically indicated subunit or killed vaccines (e.g., Hepatitis A or Hepatitis B) are not exclusionary but should be given at least 2 weeks before or after HIV immunization to avoid potential confusion of adverse reactions.
- Acute or chronic Hepatitis caused by viral or other etiology.
- Have used experimental therapeutic agents within 30 days of study entry.
- Have received blood products or immunoglobulins in the past 12 weeks.
- Have a history of anaphylaxis or other serious adverse reactions to vaccines.
- Have previously received an HIV and/or anthrax vaccine.
- Currently enrolled in other vaccine trials.
- Are pregnant or lactating.
- NOTE: Women of child-bearing potential must be using effective contraception from the date of enrollment into the protocol.
- Have an immediate type hypersensitivity reaction to aminoglyocides, e.g., kanamycin (used to prepare the LFn-p24 vaccine).
- Are study site employees who are involved in the protocol and may have direct access to the immunogenicity results.
- Are receiving ongoing therapy with immunosuppressive therapy such as systemic corticosteroids or cancer chemotherapy.
- Are active duty military or reserves.
Sites / Locations
- Vaccine Clinical Research Center
Arms of the Study
Arm 1
Arm 2
Arm 3
Experimental
Experimental
Experimental
Group 1 - LFn-p24 ISOug with Alhydrogel
Group 2 - LFn-p24 300ug with Alhydrogel
Group 3 - LFn-p24 450ug with Alhydrogel
HIV LFn-p24 is a combination of an Anthrax derived polypeptide Lethal factor (LFn), from which the toxin domain has been removed, and the HIV-1 gag p24 protein has been fused to LFn. Lfn-p24 is formulated in liquid form, and vialed. Product is administered IM, 1ml. Six subjects (4 vaccines and 2 placebos). Placebo recipients will receive a saline preparation in similar volume given IM. Immunizations given at 0, 4 and 16 weeks
HIV LFn-p24 is a combination of an Anthrax derived polypeptide Lethal factor (LFn), from which the toxin domain has been removed, and the HIV-1 gag p24 protein has been fused to LFn. Lfn-p24 is formulated in liquid form, and vialed. Product is administered IM, 1ml. Six subjects (4 vaccines and 2 placebos). Placebo recipients will receive a saline preparation in similar volume given IM. Immunizations given at 0, 4 and 16 weeks
HIV LFn-p24 is a combination of an Anthrax derived polypeptide Lethal factor (LFn), from which the toxin domain has been removed, and the HIV-1 gag p24 protein has been fused to LFn. Lfn-p24 is formulated in liquid form, and vialed. Product is administered IM, 1ml. Six subjects (4 vaccines and 2 placebos). Placebo recipients will receive a saline preparation in similar volume given IM. Immunizations given at 0, 4 and 16 weeks