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HIV InfectionsPhase 1NCT00000972

A Phase I Clinical Trial to Evaluate: Part A. The Safety of MTP-PE/MF59 Adjuvant Emulsion. Part B. The Safety and Immunogenicity of Env 2-3, a Yeast Derived Recombinant Envelope Protein of Human Immunodeficiency Virus-1, in Combination With MTP-PE/MF59

A Phase 1 study testing MTP-PE/MF59 and Env 2-3 in people with HIV Infections and HIV Seronegativity, run by National Institute of Allergy and Infectious Diseases (NIAID) at 3 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

To evaluate the safety of a fixed antigen dose with an increasing dose of adjuvant (MTP-PE/MF59, a substance to enhance the immune response to vaccine) in volunteers. To evaluate local and systemic reactions (Part A). Read more about this study

Who is it for?
Ages 18 to 50 yearsHealthy volunteers can take part
Conditions the study is for
HIV Infections, HIV Seronegativity
What is being tested?
MTP-PE/MF59 and Env 2-3
How many people
64 participants
Where
3 sitesUnited States
Study dates
Start not givento Apr 1992
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Volunteers are:
  • Normal, healthy adults (by history and physical examination) who fully comprehend the purpose and details of the study.
  • Part A:
  • Available for 60 days.
  • Part B:
  • Available for 1 year of follow-up.

Who cannot join

  • Co-existing Condition:
  • Volunteers with the following conditions or symptoms are excluded: Part B:
  • Positive syphilis serology (such as VDRL) unless positive test is due to a documented clinical event that occurred and was treated 5 or more years prior to enrollment.
  • Circulating hepatitis B antigenemia.
  • -
  • Volunteers with the following are excluded:
Show all 16Show fewer
  • History of immunodeficiency, chronic illness, autoimmune disease.
  • Evidence of depression or under treatment for psychiatric problems during the past year.
  • Prior Medication:
  • Excluded:
  • Immunosuppressive medications.
  • Prior Treatment:
  • Excluded: Part B:
  • Blood transfusion or cryoprecipitates within the past 6 months.
  • Risk Behavior: Excluded: Part B: Identifiable high-risk behavior for HIV infection, including:
  • history of intravenous drug use; syphilis, gonorrhea, or any other sexually transmitted diseases (including chlamydia or pelvic inflammatory disease) in the last 6 months; more than two sexual partners, or sexual contact with a high-risk partner, in the preceding 6 months.

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • Vanderbilt Univ. Hosp. AVEG

    Nashville, Tennessee, 37232

  • Univ. of Rochester AVEG

    Rochester, New York, 14642

  • UW - Seattle AVEG

    Seattle, Washington, 981050371

Other trials in United States

About this study

To evaluate the safety of a fixed antigen dose with an increasing dose of adjuvant (MTP-PE/MF59, a substance to enhance the immune response to vaccine) in volunteers. To evaluate local and systemic reactions (Part A). To determine the safety and immunogenicity of Env 2-3 in combination with MTP-PE/MF59 in volunteers (Part B). The vaccine Env 2-3 is created from one of the viral proteins that make up HIV called envelope glycoprotein gp120. A problem with many immunogens, including candidate HIV vaccines, is that they may evoke relatively weak immune responses, particularly in humans and in nonhuman primates. Thus, there is considerable interest in the development of "adjuvants" (substances that augment immune responses to vaccines). MTP-PE/MF59 is an adjuvant that appears to be particularly promising, and is selected for the studies with this HIV vaccine candidate.

Read the detailed description

The vaccine Env 2-3 is created from one of the viral proteins that make up HIV called envelope glycoprotein gp120. A problem with many immunogens, including candidate HIV vaccines, is that they may evoke relatively weak immune responses, particularly in humans and in nonhuman primates. Thus, there is considerable interest in the development of "adjuvants" (substances that augment immune responses to vaccines). MTP-PE/MF59 is an adjuvant that appears to be particularly promising, and is selected for the studies with this HIV vaccine candidate.

This study is being conducted in two parts: Part A examines the safety of the adjuvant MTP-PE/MF59 alone; Part B examines the safety and immunogenicity of Env 2-3 in combination with MTP-PE/MF59. In Part A, three volunteers receive MTP-PE/MF59, and one volunteer receives emulsion alone at each dose level. Initiation of each dose level is separated by at least 72 hours. Doses of adjuvant emulsion are administered at day 0 and day 30 for the highest tolerated dose. If significant reactions are encountered, additional subjects may be studied at lower doses. In Part B, six doses of MTP-PE adjuvant (0, 5, 10, 25, 50, or 100 mcg) in the MF59 emulsion are studied. Six volunteers receive Env 2-3/MTP-PE/MF59 and two receive MTP-PE/MF59 alone at each dose level. There is a minimum 1-week interval between dose escalations. Per amendment, volunteers may receive an additional dose of Env 2-3 or placebo in MF59 emulsion only, administered 12-18 months post initial inoculation.

Being tested
MTP-PE/MF59, Env 2-3
Keywords
Vaccines, Synthetic, Drug Evaluation, Adjuvants, Immunologic, AIDS Vaccines, HIV Preventive Vaccine
Medical subject headings
HIV Infections

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MTP-PE/MF59Biological

  • Env 2-3Biological

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted31 Aug 2001 (estimated)
  2. Study completionApr 1992

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Prevention
Allocation
Randomised
Enrolment
64 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00000972
Sponsor's protocol ID
AVEG 005A/B
Other IDs
10546, 10547
Status last verified
Oct 2021
First submitted
2 Nov 1999
Last updated
4 Nov 2021
Results posted
No

Publications

  • Evans TG, Fitzgerald T, Gibbons DC, Keefer MC, Soucier H. Th1/Th2 cytokine responses following HIV-1 immunization in seronegative volunteers. The AIDS Vaccine Evaluation Group. Clin Exp Immunol. 1998 Feb;111(2):243-50. doi: 10.1046/j.1365-2249.1998.00486.x.

    PubMed 9486388
  • Keefer MC, Graham BS, McElrath MJ, Matthews TJ, Stablein DM, Corey L, Wright PF, Lawrence D, Fast PE, Weinhold K, Hsieh RH, Chernoff D, Dekker C, Dolin R. Safety and immunogenicity of Env 2-3, a human immunodeficiency virus type 1 candidate vaccine, in combination with a novel adjuvant, MTP-PE/MF59. NIAID AIDS Vaccine Evaluation Group. AIDS Res Hum Retroviruses. 1996 May 20;12(8):683-93. doi: 10.1089/aid.1996.12.683.

    PubMed 8744579

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing MTP-PE/MF59 and Env 2-3 in people with HIV Infections and HIV Seronegativity, run by National Institute of Allergy and Infectious Diseases (NIAID) at 3 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 16 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 4 Nov 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00000972, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Nov 2021.

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