NCT04304768

Brief Summary

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.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
400

participants targeted

Target at P75+ for phase_4

Timeline
20mo left

Started Nov 2020

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress77%
Nov 2020Dec 2027

First Submitted

Initial submission to the registry

March 9, 2020

Completed
2 days until next milestone

First Posted

Study publicly available on registry

March 11, 2020

Completed
8 months until next milestone

Study Start

First participant enrolled

November 18, 2020

Completed
6.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2027

Expected
11 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2027

Last Updated

March 27, 2026

Status Verified

March 1, 2026

Enrollment Period

6.2 years

First QC Date

March 9, 2020

Last Update Submit

March 24, 2026

Conditions

Keywords

Flu vaccine response and HIV

Outcome Measures

Primary Outcomes (1)

  • Change in the antibody response

    Antibody response as measured by the serum vaccine antigen specific hemagglutination inhibition antibody levels.

    Baseline, 4 weeks, 6 months

Secondary Outcomes (4)

  • Immune activation levels

    Baseline

  • Inflammation biomarker levels

    Baseline

  • Circulating T follicular helper cell function

    Week 4

  • Circulating T follicular helper cell frequency

    Week 4

Study Arms (4)

HIV positive opioid users

EXPERIMENTAL

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

Biological: Fluzone Quadrivalent

HIV positive non-opioid users

EXPERIMENTAL

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

Biological: Fluzone Quadrivalent

HIV negative opioid users

EXPERIMENTAL

Participants will receive flu vaccination as part of the study

Biological: Fluzone Quadrivalent

HIV negative non-opioid users

EXPERIMENTAL

Participants will receive flu vaccination as part of the study

Biological: Fluzone Quadrivalent

Interventions

0.5 ml prefilled syringe administrated intramuscularly

Also known as: Influenza vaccination
HIV negative non-opioid usersHIV negative opioid usersHIV positive non-opioid usersHIV positive opioid users

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • For Opioid (OP) users/non-users:
  • OP users - prescribed opioids for at least the past 90 days; or injecting opioids for at least 90 days
  • Opioid never-users in the past year
  • Additional criteria for OP users:
  • OP use for 90 days pre-flu vaccination
  • Continued OP use for 4 weeks post flu vaccination
  • For HIV positive participants:
  • \) 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:
  • 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
  • CD4 count available in the prior 6 months and \>200/mm3
  • Undetectable viral load (\< 200 copies/mL)
  • For HIV negative participants:
  • \) Documented negative HIV test, either by any licensed ELISA or rapid tests within the past 6 months.
  • For all participants:
  • +8 more criteria

You may not qualify if:

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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Miami

Miami, Florida, 33136, United States

Location

Related Publications (3)

  • Ghanta PP, Dang CM, Nelson CM, Feaster DJ, Forrest DW, Tookes H, Pahwa RN, Pallikkuth S, Pahwa SG. Soluble Plasma Proteins of Tumor Necrosis Factor and Immunoglobulin Superfamilies Reveal New Insights into Immune Regulation in People with HIV and Opioid Use Disorder. Vaccines (Basel). 2024 May 9;12(5):520. doi: 10.3390/vaccines12050520.

    PMID: 38793771BACKGROUND
  • Dang CM, Nelson CM, Feaster DJ, Kizhner A, Forrest DW, Nakamura N, Iyer A, Ghanta PP, Jayaweera DT, Rodriguez AE, Pahwa RN, Tookes HE, Pallikkuth S, Pahwa SG. Opioids exacerbate inflammation in people with well-controlled HIV. Front Immunol. 2023 Nov 1;14:1277491. doi: 10.3389/fimmu.2023.1277491. eCollection 2023.

    PMID: 38022645BACKGROUND
  • Dang CM, Nelson CM, Pahwa RN, Tookes HE, Feaster DJ, Singh P, Rodriguez AE, Forrest DW, Nakamura N, Ghanta PP, Jayaweera DT, Iyer A, Pallikkuth S, Pahwa SG. Chronic opioid use is associated with higher antibody response to influenza vaccination in people living with HIV. Front Immunol. 2025 Dec 17;16:1686103. doi: 10.3389/fimmu.2025.1686103. eCollection 2025.

    PMID: 41479899BACKGROUND

MeSH Terms

Interventions

Influenza Vaccines

Intervention Hierarchy (Ancestors)

Viral VaccinesVaccinesBiological ProductsComplex Mixtures

Study Officials

  • Savita Pahwa, MD

    University of Miami

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

March 9, 2020

First Posted

March 11, 2020

Study Start

November 18, 2020

Primary Completion (Estimated)

January 31, 2027

Study Completion (Estimated)

December 31, 2027

Last Updated

March 27, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will not share

Locations