Opioid, HIV and Immune System

NCT ID: NCT04304768

Last Updated: 2025-12-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE4

Total Enrollment

400 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-11-18

Study Completion Date

2026-12-31

Brief Summary

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The purpose of this research is to evaluate blood samples from HIV infected and non-HIV infected people opioid and non opioid users to understand how opioid affect the immune responses (body defenses against infection) to the flu vaccine.

Detailed Description

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Conditions

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Immune Defect

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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HIV positive opioid users

Participants will continue their standard of care antiretroviral therapy (ART) and receive flu vaccination as part of the study

Group Type EXPERIMENTAL

Fluzone Quadrivalent

Intervention Type BIOLOGICAL

0.5 ml prefilled syringe administrated intramuscularly

HIV positive non-opioid users

Participants will continue their standard of care antiretroviral therapy (ART) and receive flu vaccination as part of the study

Group Type EXPERIMENTAL

Fluzone Quadrivalent

Intervention Type BIOLOGICAL

0.5 ml prefilled syringe administrated intramuscularly

HIV negative opioid users

Participants will receive flu vaccination as part of the study

Group Type EXPERIMENTAL

Fluzone Quadrivalent

Intervention Type BIOLOGICAL

0.5 ml prefilled syringe administrated intramuscularly

HIV negative non-opioid users

Participants will receive flu vaccination as part of the study

Group Type EXPERIMENTAL

Fluzone Quadrivalent

Intervention Type BIOLOGICAL

0.5 ml prefilled syringe administrated intramuscularly

Interventions

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Fluzone Quadrivalent

0.5 ml prefilled syringe administrated intramuscularly

Intervention Type BIOLOGICAL

Other Intervention Names

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Influenza vaccination

Eligibility Criteria

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Inclusion Criteria

For Opioid (OP) users/non-users:

1. OP users - prescribed opioids for at least the past 90 days; or injecting opioids for at least 90 days
2. Opioid never-users in the past year

Additional criteria for OP users:

1. OP use for 90 days pre-flu vaccination
2. Continued OP use for 4 weeks post flu vaccination

For HIV positive participants:

1\) HIV infection, as documented by any licensed ELISA kit and confirmed by Western blot at any time prior to study entry. Participants on ART as a result of prior HIV documented infection will not be required to provide proof of diagnosis of HIV infection.

Additional criteria for HIV positive participants:

1. On ART for at least 1 year with plasma pending viral load (VL) \<200 copies/mL. Occasional viral blips up to 1000 copies/ml also acceptable provided the patients are on continuing treatment
2. CD4 count available in the prior 6 months and \>200/mm3
3. Undetectable viral load (\< 200 copies/mL)

For HIV negative participants:

1\) Documented negative HIV test, either by any licensed ELISA or rapid tests within the past 6 months.

For all participants:

1. Individuals age 18-60 yrs .
2. No history of other immunodeficiency disorders
3. Not on steroid or other immunosuppressive/immunomodulators medications.
4. No active malignancies.
5. No contraindication to receive influenza vaccination (allergy to chicken eggs or to any other substance of the vaccine).
6. Agreeable to receive the influenza vaccination.
7. Agreeable to participate in study for a complete course of study full visits.
8. Able to provide informed consent.

Exclusion Criteria

1. Contraindication to receive influenza vaccination (allergy to chicken eggs or to any other substance of the vaccine).
2. Non-adherence to ART for HIV+
3. Unable to provide informed consent.
4. Other comorbid conditions such as diabetes mellitus type 2 (DMT2)
5. Influenza vaccination already given during the current vaccination season.
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Miami

OTHER

Sponsor Role lead

Responsible Party

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Savita Pahwa

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Savita Pahwa, MD

Role: PRINCIPAL_INVESTIGATOR

University of Miami

Locations

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University of Miami

Miami, Florida, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Savita Pahwa, MD

Role: CONTACT

3052437732

Suresh Pallikkuth, PhD

Role: CONTACT

3052435315

Facility Contacts

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Suresh Pallikkuth, PhD

Role: primary

7862019897

Other Identifiers

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20200178

Identifier Type: -

Identifier Source: org_study_id

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