Observational Study of the Preventive Trial With HIV-1 Tat Protein

The results of the Phase I Safety and Immunogenicity Trial of Recombinant HIV-1 Tat (ISS P-001 and ISS T-001) indicate that the vaccine based on the recombinant Tat protein is safe, well tolerated and immunogenic. The present study is intended to extend the follow-up of the volunteers for additional 3 years to evaluate the persistence of the anti-Tat humoral and cellular immune response. The results of the present study will be key for the design of future phase II trials, particularly for the definition of the optimal schedule for boosting immunizations.

All individuals (20) will be enrolled in a 120-weeks observational study and monitored every 24 weeks for the following 3 years. During these visits, in addition to the hematological and biochemical assessment, the anti-Tat specific humoral and cellular immune responses will be evaluated.

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Key information

Conditions

Healthy Subjects

Age range

18 year–50 year

Sex eligibility

All sexes

Study type

Observational

Primary location

San Raffaele Hospital, Milan, Italy

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Previous participation to the Phase I Clinical Trial ISS P-001

Treatment and study plan

Primary outcomes

To evaluate the persistence of specific immune responses, volunteers will be monitored for anti-Tat specific antibodies, anti-Tat proliferative response and in vitro γIFN and IL-4 production in response to Tat (Elispot).

Secondary outcomes

To develop test procedures in order to evaluate humoral and cellular anti-Tat immunity for future efficacy trials.

Sponsors and collaborators

Lead sponsor

Istituto Superiore di Sanità

Other

Registry information

Official study title

Observational Study of the Phase I Safety and Immunogenicity Trial of Recombinant HIV-1 Tat in HIV-1 Uninfected Adult Volunteers

Acronym: ISS OBS P-001

Important dates

Study start: 2007
Study completion: 2010
First posted: Dec 3, 2009
Registry last updated: Mar 1, 2011

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed