ClinicalTrials.gg
TerminatedNCT00623753Updated Apr 26, 2017

Evaluate Tolerability of a Multi-envelope, Prime-boost HIV Vaccine in Healthy Adults

A Phase 1 interventional study of EnvDNA, PolyEnv1, EnvPro in HIV Infections, sponsored by St. Jude Children's Research Hospital. Terminated at 1 site in United States. Open to participants aged 18 Years to 35 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-04-26.

Sponsored by St. Jude Children's Research Hospital · Phase 1, Interventional, and Prevention

Phase
Phase 1
Study type
Interventional
Enrollment
3
Allocation
Not applicable
Ages
18 Years to 35 Years
Sex
All
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Study summary

Vaccines have been very successful in preventing viral infections such as hepatitis B and the measles. Viral vaccines work by causing a person's immune system to make cells that will work against the virus. Due to the success in treating other viral infections, scientists are trying to develop a vaccine for human immunodeficiency virus (HIV). HIV infection is the cause of acquired immune deficiency syndrome (AIDS). AIDS is one of the most serious viral infections we know.

This is a research study to evaluate the safety of a possible vaccine against HIV. Researchers want to determine that a person's immune system can respond to the HIV before he or she is exposed to it. Therefore that person may be able to be protected from infection with HIV.

Read the detailed description

This is a research study to find out about the safety of a new potential vaccine regimen against HIV. This potential vaccine regimen consists of a sequence of six vaccine shots that are being studied to see if they can help to protect people from the human immunodeficiency virus (HIV). HIV infection is the cause of AIDS. AIDS is one of the most serious viral infections we know. Twenty million people around the world have already died of AIDS and over 40 million people are currently infected with the virus. This study is being done to help us find an HIV vaccine that works.

Vaccines have been very successful in preventing other viral infections, such as hepatitis B, polio, and measles. Viral vaccines work by causing a person's immune system to make antibodies and immune cells against the virus or to "respond" to the virus. Because of the success with other viral infections, scientists are trying to develop a successful vaccine for HIV. If a person's immune system can respond to HIV before he or she is exposed to it, that person may be able to be protected from infection with HIV.

The vaccine regimen that will be tested in this study is based on the information that the virus uses to make a small part of the HIV. This small part is called the "envelope" or coating around the virus. Because only the information for this one part of the virus is used in the vaccine, the vaccine cannot cause HIV infection. We make all parts of the vaccine regimen in test tubes.

02

Conditions studied

  • HIV Infections

Keywords

  • Vaccine
  • Prevention
  • HIV
  • AIDS
  • Human Immunodeficiency Virus
  • HIV Seronegativity, HIV Preventive Vaccine
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In context

HIV Infections

4,342 studies on the registry are indexed under HIV Infections; 240 are open to participants now.

This study's enrollment of 3 is below the median of 83 across 3,312 interventional studies indexed under HIV Infections.

Browse HIV Infections studies →

Lead sponsor

St. Jude Children's Research Hospital is the lead sponsor of 439 studies on the registry; 101 are open to participants now.

Of its 61 completed or terminated interventional studies of FDA-regulated products, 37 (61%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 35 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Healthy adults; age > 18 years, born after 1972 if born in U.S.
  • Informed consent
  • Normal history and physical exam
  • HIV-1 negative as documented by ELISA and Western blot analysis within 30 days prior to immunization
  • Normal laboratory values within 60 days prior to immunization defined as:

    • hemoglobin greater than or equal to 12.0 gm/dl for females and greater than or equal to 14.0 gm/dl for males
    • White blood cell count > 3500 cells/mm3
    • Platelet count 150,000 - 550,000 cells/mm3
    • Absolute CD4+ count > 400 cells/mm3
    • AST and ALT within normal institutional limits
    • Serum creatinine within normal institutional limits
  • Normal CPK-MB (creatine kinase isoenzyme MB) and troponin I within 30 days prior to immunization
  • Normal ECG within 30 days prior to immunization
  • No evidence of smallpox vaccination (born in the U.S. after 1972 with no typical scar on the deltoid, ankle, thigh or between the scapulae and no history of vaccination in personal immunization record)
  • No entry into military service before 1990
  • Fewer than 3 of the following:

    • Current cigarette smoker
    • History of high cholesterol
    • History of diabetes or high blood sugar
    • High blood pressure
    • Heart disease before age 50 in parent or sibling
  • Not planning to become pregnant during study vaccinations and for 3 months after last vaccination
  • Vaccinia virus seronegative

Exclusion criteria

Exclusion Criteria:

  • History of immunosuppressive illness, chronic illness (e.g. asthma, bleeding diathesis, etc) or use of any immunosuppressive medications (e.g. steroids)
  • History of neurological disorder
  • Receiving therapy or prophylaxis for tuberculosis
  • Known allergy to the antibiotic kanamycin
  • History of eczema, atopic dermatitis and other acute, chronic or exfoliative conditions
  • Household contact with persons with eczema or other exfoliative skin conditions
  • Pregnant or nursing women
  • Household contact with persons with immunodeficiency (including eczema or use of immunosuppressive medications)
  • Household contact with persons less than 12 months of age
  • Household contact with pregnant women
  • History of cardiac disease such as previous myocardial infarction, angina, congestive heart failure, or cardiomyopathy
  • Any member of the Investigator's laboratory program
  • Participation in previous HIV vaccine trial
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Study design

Phase
Phase 1
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
3 participants (actual)

Study arms

  • Experimental
    A

    Biological: EnvDNA, PolyEnv1, EnvPro

Interventions

  • BiologicalEnvDNA, PolyEnv1, EnvPro

    Description: The vaccine regimen is a series of 6 injections given 28 days apart. EnvDNA is administered intramuscularly as 100 mcg of recombinant DNA in 1.5 mL of PBS as injections #1, 2 and 5. PolyEnv1 is recombinant vaccinia virus administered subcutaneously as 107 pfu in 0.8 mL of PBS as injection #3. EnvPro is administered intramuscularly as 100 mcg of recombinant protein and 500 mcg of aluminum hydroxide (alum) adjuvant in 1.0 mL of PBS as injections #4 and 6.

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What researchers measure

Primary outcomes

  1. To evaluate the tolerability and safety of the multi-envelope vaccine regimen.

    Time frame: 1 year

Secondary outcomes

  1. To characterize the kinetics, duration and magnitude of the HIV-envelope specific immune responses elicited by the multi-envelope vaccine regimen.

    Time frame: 1 year

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Study locations

1 site
  • St. Jude Children's Research Hospital
    Memphis, Tennessee 38105, United States
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References and documents

09

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of May 2007, a primary completion of Jan 2008 and a completion of Jan 2008. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 18, 2008
First posted
Feb 26, 2008
Start
May 2007
Primary completionActual
Jan 2008
CompletionActual
Jan 2008
Last update
Apr 26, 2017
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 26, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00623753
Responsible party
Sponsor
First posted
Feb 26, 2008
Start date
May 2007
Primary completion
Jan 2008
Completion
Jan 2008
Last update
Apr 26, 2017

Study contacts

Pat Flynn, MD
principal investigator · St. Jude Children's Research Hospital

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Sep 2011. You cannot join it, but the record below documents what was studied.

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