Primary Infection Cohort (PRIMO)

October 18, 2022 updated by: ANRS, Emerging Infectious Diseases

Multicentric Cohort of HIV-1 (Human Immunodeficiency Virus 1) Primary Infection Cohort ANRS CO6 PRIMO

Open, prospective, multicenter French cohort study enrolling subjects aged of 15 years or more, during or immediately after HIV-1 primary infection. This cohort was organized from the outset to be highly multidisciplinary, bringing together immunologists, virologists, clinicians and epidemiologists.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Objectives: Follow up of patients infected by HIV-1 for less than three months.

  1. Improve the physiological and pathological knowledge of primary HIV infection

    • Study of the immune mechanisms involved early after infection
    • Kinetics of viral replication and establishment of cellular reservoirs at an early stage
    • Relationships between virological markers and immune response kinetics
    • Impact of resistance mutations, subtype and tropism on the disease progression and the response to treatment
    • Study of sub-groups of specific patients followed since primary infection, spontaneous or post treatment controllers, subjects with specific HLA
  2. Assessing the impact of early, transient or prolonged treatment versus deferred treatment on the long-term prognosis of patients followed since primary infection, in terms of activation / inflammation and decrease in viral reservoirs

  3. Contribute to knowledge in the epidemiology of HIV infection:

    • Modes of transmission
    • Sexual behavior after HIV diagnosis
    • Calendar trend of transmitted viral strains diversity (ARV resistance and subtypes)
    • Calendar trend of marker levels measured at primary infection
  4. Contribute to national recommendations for therapeutic care, evaluate their implementation
  5. Use observational data from the cohort for the development of therapeutic clinical trials at primary infection

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
2800

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • France
      • Le Kremlin Bicêtre, France, 94276
        • Recruiting
        • Laurence Meyer
        • Contact:
        • Principal Investigator:
          • Cécile Ms Goujard, Professor

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

15 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

HIV-1 infected patients

Description

Inclusion Criteria:

  • symptomatic or asymptomatic HIV-1 primary infection.

  • Infection date based on one of the following criteria:

    1. Positive p24 antigenemia or detectable plasma HIV RNA with a negative ELISA within the previous six weeks.
    2. Positive p24 antigenemia or detectable plasma HIV RNA with a positive ELISA and negative Western Blot within the previous six weeks.
    3. Positive p24 antigenemia or detectable plasma HIV RNA or positive ELISA with incompleted Western Blot (no anti-p34 and/or anti-p68) within the previous six weeks.
    4. Positive ELISA with a negative ELISA within the last three months.
  • Age≥ 15 years old at the enrollment.
  • Naive of antiretroviral treatment except for transient treatment taken in the context of PMTCT, Pre-exposition prophylaxis or Post Exposition Prophylaxis.
  • Affiliate or beneficiary of a social security system (State Medical Assistance is not a social security scheme).

Exclusion Criteria:

  • Inability to give informed consent.
  • Predictable difficult follow-up.
  • Contraindication to repeated blood samples.
  • Under protection (saving) of justice
  • Life-threatening pathology (deferred inclusion is possible)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Follow-up Arm
Blood sampling only
Biological: blood sampling
Blood Sampling at J0, M1, M3, M6, M12, M24 and every 12 months until the end of the study

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Improve the physiological, pathological and virological knowledge of primary HIV infection
Time Frame: up to 25 years
  • Study of the immune mechanisms involved early after infection
  • Kinetics of viral replication and establishment of cellular reservoirs at an early stage
  • Relationships between virological markers and immune response kinetics
  • Impact of resistance mutations, subtype and tropism on the disease progression and the response to treatment
  • Study of sub-groups of specific patients followed since primary infection, spontaneous or post treatment controllers, subjects with specific HLA
up to 25 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
The impact of early, transient or prolonged treatment versus deferred treatment on the long-term prognosis of patients followed since primary infection, in terms of activation / inflammation
Time Frame: up to 25 years
up to 25 years
Contribute to knowledge in the epidemiology of HIV infection
Time Frame: up to 25 years
  • Modes of transmission
  • Sexual behavior after HIV diagnosis
  • Calendar trend of transmitted viral strains diversity (ARV resistance and subtypes)
  • Calendar trend of marker levels measured at primary infection
up to 25 years
Contribute to national recommendations for therapeutic care and evaluate their implementation
Time Frame: up to 25 years
up to 25 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
ANRS, Emerging Infectious Diseases

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Laurence Meyer, Professor, CESP-INSERM U1018

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 1, 1996

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 1, 2024

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 1, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 12, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 10, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 11, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 19, 2022

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 18, 2022

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2022

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • ANRS CO6 PRIMO

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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