AzTrials
AzTrials

HIV InfectionsKingaNCT03701802

Immunogenetic Modulators of Mucosal Protection From HIV-1

An observational study of HIV Infections and HSV-2 Infection, run by University of Washington at 1 site in Kenya.

Completed

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

Official record
Search all trials

Trial summary

This is a single site, prospective, observational study that seeks to assess changes in mucosal immunity that occur as a result of HIV-1 exposure, HSV-2 infection, and/or pre-exposure prophylaxis (PrEP) usage to prevent HIV-1 acquisition. Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
HIV Infections, HSV-2 Infection
How many people
812 participants
Where
1 siteKenya
Study dates
27 Sep 2018to 30 Sep 2020
Phase
Observational
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 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: African heterosexual HIV-serodiscordant (SDC) and HIV-1 concordant negative couples (CNC)

Who may be able to join

  • HIV-1 Uninfected Participants;
  • Age ≥18 and ≤65 and able to provide independent informed consent for research per local regulations and guidelines
  • Able and willing to provide written informed consent to be screened for and to take part in the study
  • Part of a heterosexual couple in which either one or both partners meet the study eligibility criteria for partner (HIV-1 uninfected) participants. Couples are defined by the following criteria:
  • Partners are sexually active (defined as having had vaginal intercourse with the enrolled partner at least 6 times in the last three months)
  • Partners plan to remain in the relationship for the duration of the study period.
Show all 16Show fewer
  • HIV-1 uninfected status is based on parallel negative HIV-1 rapid tests, both at study screening and at the enrollment visit
  • Able and willing to provide adequate locator information for study retention purposes, as defined by local standard operating procedures
  • HIV-1 Infected Participants;
  • Of legal age to provide independent informed consent for research per local regulations and guidelines.
  • Able and willing to provide written informed consent to be screened for and to take part in the study.
  • Part of a heterosexual couple in which one partner meets the study eligibility criteria for index (HIV-1 infected) participants and the other partner meets the study eligibility criteria for partner (HIV-1 uninfected) participants
  • Current or previous use of antiretroviral therapy with unsuppressed HIV-1 viral load
  • HIV-1 infected based on positive EIA and, when available, detectable viral load.
  • No history of any clinical AIDS-defining diagnoses.
  • Able and willing to provide adequate locator information for study retention purposes, as defined by local standard operating procedures.

Who cannot join

  • HIV-1 Uninfected Participants;
  • Abnormal serum creatinine (based on sub-Saharan African normal values)
  • Active and serious infections, including active tuberculosis infection or osteomyelitis and all infections requiring parenteral antibiotic therapy; active clinically significant medical problems including cardiac disease, pulmonary disease, diabetes requiring hypoglycemic medication; and previously diagnosed malignancy expected to require further treatment.
  • Receiving ongoing therapy with any of the following at the time of enrollment: antiretroviral therapy (ART), including nucleoside analogs, nonnucleoside reverse transcriptase inhibitors, protease inhibitors or investigational antiretroviral agents, interferon (alpha, beta, or gamma) or interleukin (e.g., IL-2) therapy, metformin, aminoglycoside antibiotics, amphotericin B, cidofovir, systemic chemotherapeutic agents, other agents with significant nephrotoxic potential, other agents that may inhibit or compete for elimination via active renal tubular secretion (e.g., probenecid), and/or other investigational agent
  • At enrollment, has any other condition that, based on the opinion of the investigator or designee, would preclude provision of informed consent; make participation in the study unsafe; complicate interpretation of study outcome data)
  • Pregnant at the time of screening
Show all 11Show fewer
  • HIV-1 Infected Participants;
  • Current or previous use of antiretroviral therapy with suppressed HIV-1 viral load
  • Currently enrolled in another HIV-1 treatment trial
  • At enrollment, has any other condition that, based on the opinion of the investigator or designee, would preclude provision of informed consent; make participation in the study unsafe; complicate interpretation of study outcome data; or otherwise interfere with achieving the study objectives.
  • Pregnant at the time of screening

Trial locations and contacts

1 site in 1 country.

Kenya1 site
  • Partners in Health, Research and Development

    Thika

Other trials in Kenya

About this study

Official title: Immunogenetic Modulators of Mucosal Protection From HIV-1: The Kinga Study

This is a single site, prospective, observational study that seeks to assess changes in mucosal immunity that occur as a result of HIV-1 exposure, HSV-2 infection, and/or pre-exposure prophylaxis (PrEP) usage to prevent HIV-1 acquisition. The study will collect mucosal and peripheral blood samples for a detailed analysis of longitudinal immune responses, while also obtaining samples for genetic characterization to understand how variants in CD101 and UBE2V1 may modulate host mucosal responses and HIV-1 infection risk.

Read the detailed description

A challenge to development of HIV-1 vaccines is to better understand the natural immune mechanisms for protection from HIV-1 infection. To this end, immunologists have increasingly appreciated the importance of regulatory T cells in peripheral blood that modulate the magnitude and characteristics of the host inflammatory response including against infectious diseases. The investigators have recently identified specific host genetic variants in the genes CD101 and UBE2V1 that appear to strongly predispose to HIV-1 infection risk and may act through regulatory T cells and other immunologic pathways. Most studies of individuals who are repeatedly HIV-1 exposed but remain seronegative (HESN) have focused on immunological correlates in peripheral blood rather than mucosal immune responses. However, with genital mucosal tissues being the portal of entry for heterosexually transmitted HIV-1 infection, it is critical to understand the role of immunological responses to HIV-1 that occur in the genital mucosa. A valuable model to carry out such studies is offered by evaluation of HIV-Exposed SeroNegative (HESN) individuals, particularly in the context of heterosexual sex with a stable HIV-1 infected partner e.g., HIV-1 serodiscordant couples (SDC). In order to understand how genital exposure to HIV-1 may modulate these immune pathways, HIV-1 serodiscordant couples should be compared to heterosexual partners in concordant HIV-1 negative couples (CNC) where neither partner has HIV-1. This study seeks to address this important knowledge gap by enrolling high-risk HESN with defined heterosexual HIV-1 exposures in the context of serodiscordant partnerships compared to unexposed concordant seronegative controls. The study will prospectively collect mucosal and peripheral blood samples for a detailed analysis of longitudinal immune responses, while also obtaining samples for genetic characterization to understand how variants in CD101 and UBE2V1 may modulate host mucosal responses and HIV-1 infection risk.

Primary Objectives:

  • To identify mucosal immunoregulatory mechanisms mediating host response to heterosexual exposure to HIV-1.
  • To determine how high priority variants in CD101 and UBE2V1 modify host mucosal responses in HIV-1 exposure and infection.

Secondary Objectives:

  • Identify factors (including HIV-1 exposure, host genetic and microbiota) that modify immunoregulatory mechanisms mediating host response to HIV-1
  • Evaluate how these immunogenetic regulatory mechanisms influence other infectious and immunological outcomes
  • Evaluate the effect of PrEP on early HIV-1 disease
Keywords
HIV prevention, Tenofovir Disoproxil Fumarate (TDF)/Emtricitabine (FTC), PrEP
Medical subject headings
HIV Infections

What participants receive

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

Study groups in NCT03701802
Study groupRoleWhat they receive
HIV-1 serodiscordant couplesHeterosexual couples in which one partner is infected with HIV-1 and the other partner is HIV-1 uninfected
Concordant HIV-1 negative couplesHeterosexual couples in which both partners are HIV-1 uninfected

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Prevalence of genital-tract tissue resident memory (TRM) cells

    We will compare frequency of CD69+ among CD8+ TRM in genital tissues between HIV-1 exposed and HIV-1 unexposed individuals

    Measured: At 6 months of follow-up

Secondary outcomes (1)
  1. Prevalence of genital-tract tissue resident memory (TRM) cells in individuals with versus without CD101 immunoglobulin-like (Ig-like) variants.

    We will compare frequency of CD69+ among CD8+ TRM in genital tissues in individuals with versus without CD101 immunoglobulin-like (Ig-like) variants.

    Measured: At 6 months of follow-up

Timeline

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

  1. First posted10 Oct 2018
  2. Study start27 Sep 2018
  3. Primary completion30 Sep 2020
  4. Study completion30 Sep 2020

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
812 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03701802
Sponsor's protocol ID
STUDY00001559
Other IDs
R01AI129715, R01AI131914, R01AI141435
Acronym
Kinga
Status last verified
Nov 2020
First submitted
21 Sep 2018
Last updated
3 Nov 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided: De-identified individual participant data for all outcome measures

Publications

  • Pattacini L, Baeten JM, Thomas KK, Fluharty TR, Murnane PM, Donnell D, Bukusi E, Ronald A, Mugo N, Lingappa JR, Celum C, McElrath MJ, Lund JM; Partners PrEP Study Team. Regulatory T-Cell Activity But Not Conventional HIV-Specific T-Cell Responses Are Associated With Protection From HIV-1 Infection. J Acquir Immune Defic Syndr. 2016 Jun 1;72(2):119-28. doi: 10.1097/QAI.0000000000000919.

    PubMed 26656786
  • Pattacini L, Murnane PM, Baeten JM, Fluharty TR, Thomas KK, Bukusi E, Katabira E, Mugo N, Donnell D, Lingappa JR, Celum C, Marzinke M, McElrath MJ, Lund JM; Partners PrEP Study Team. Antiretroviral Pre-Exposure Prophylaxis Does Not Enhance Immune Responses to HIV in Exposed but Uninfected Persons. J Infect Dis. 2015 Jun 15;211(12):1943-52. doi: 10.1093/infdis/jiu815. Epub 2014 Dec 17.

    PubMed 25520426
  • Lund JM, Broliden K, Pyra MN, Thomas KK, Donnell D, Irungu E, Muwonge TR, Mugo N, Manohar M, Jansson M, Mackelprang R, Marzinke MA, Baeten JM, Lingappa JR. HIV-1-Neutralizing IgA Detected in Genital Secretions of Highly HIV-1-Exposed Seronegative Women on Oral Preexposure Prophylaxis. J Virol. 2016 Oct 14;90(21):9855-9861. doi: 10.1128/JVI.01482-16. Print 2016 Nov 1.

    PubMed 27558421
  • Alimonti JB, Koesters SA, Kimani J, Matu L, Wachihi C, Plummer FA, Fowke KR. CD4+ T cell responses in HIV-exposed seronegative women are qualitatively distinct from those in HIV-infected women. J Infect Dis. 2005 Jan 1;191(1):20-4. doi: 10.1086/425998. Epub 2004 Dec 1.

    PubMed 15592998
  • Biasin M, Piacentini L, Lo Caputo S, Naddeo V, Pierotti P, Borelli M, Trabattoni D, Mazzotta F, Shearer GM, Clerici M. TLR activation pathways in HIV-1-exposed seronegative individuals. J Immunol. 2010 Mar 1;184(5):2710-7. doi: 10.4049/jimmunol.0902463. Epub 2010 Feb 1.

    PubMed 20124101
  • Pattacini L, Murnane PM, Kahle EM, Bolton MJ, Delrow JJ, Lingappa JR, Katabira E, Donnell D, McElrath MJ, Baeten JM, Lund JM. Differential regulatory T cell activity in HIV type 1-exposed seronegative individuals. AIDS Res Hum Retroviruses. 2013 Oct;29(10):1321-9. doi: 10.1089/AID.2013.0075. Epub 2013 Jul 30.

    PubMed 23815575
  • Mackelprang RD, Baeten JM, Donnell D, Celum C, Farquhar C, de Bruyn G, Essex M, McElrath MJ, Nakku-Joloba E, Lingappa JR; Partners in Prevention HSV/HIV Transmission Study Team. Quantifying ongoing HIV-1 exposure in HIV-1-serodiscordant couples to identify individuals with potential host resistance to HIV-1. J Infect Dis. 2012 Oct;206(8):1299-308. doi: 10.1093/infdis/jis480. Epub 2012 Aug 27.

    PubMed 22926009
  • Wald A, Link K. Risk of human immunodeficiency virus infection in herpes simplex virus type 2-seropositive persons: a meta-analysis. J Infect Dis. 2002 Jan 1;185(1):45-52. doi: 10.1086/338231. Epub 2001 Dec 14.

    PubMed 11756980
  • Eichhorn EJ, Tandon PK, DiBianco R, Timmis GC, Fenster PE, Shannon J, Packer M. Clinical and prognostic significance of serum magnesium concentration in patients with severe chronic congestive heart failure: the PROMISE Study. J Am Coll Cardiol. 1993 Mar 1;21(3):634-40. doi: 10.1016/0735-1097(93)90095-i.

    PubMed 8436744
  • Mackelprang RD, Bamshad MJ, Chong JX, Hou X, Buckingham KJ, Shively K, deBruyn G, Mugo NR, Mullins JI, McElrath MJ, Baeten JM, Celum C, Emond MJ, Lingappa JR; Partners in Prevention HSV/HIV Transmission Study and the Partners PrEP Study Teams. Whole genome sequencing of extreme phenotypes identifies variants in CD101 and UBE2V1 associated with increased risk of sexually acquired HIV-1. PLoS Pathog. 2017 Nov 6;13(11):e1006703. doi: 10.1371/journal.ppat.1006703. eCollection 2017 Nov.

    PubMed 29108000
  • Hughes JP, Baeten JM, Lingappa JR, Magaret AS, Wald A, de Bruyn G, Kiarie J, Inambao M, Kilembe W, Farquhar C, Celum C; Partners in Prevention HSV/HIV Transmission Study Team. Determinants of per-coital-act HIV-1 infectivity among African HIV-1-serodiscordant couples. J Infect Dis. 2012 Feb 1;205(3):358-65. doi: 10.1093/infdis/jir747. Epub 2012 Jan 11.

    PubMed 22241800
  • Baeten JM, Donnell D, Ndase P, Mugo NR, Campbell JD, Wangisi J, Tappero JW, Bukusi EA, Cohen CR, Katabira E, Ronald A, Tumwesigye E, Were E, Fife KH, Kiarie J, Farquhar C, John-Stewart G, Kakia A, Odoyo J, Mucunguzi A, Nakku-Joloba E, Twesigye R, Ngure K, Apaka C, Tamooh H, Gabona F, Mujugira A, Panteleeff D, Thomas KK, Kidoguchi L, Krows M, Revall J, Morrison S, Haugen H, Emmanuel-Ogier M, Ondrejcek L, Coombs RW, Frenkel L, Hendrix C, Bumpus NN, Bangsberg D, Haberer JE, Stevens WS, Lingappa JR, Celum C; Partners PrEP Study Team. Antiretroviral prophylaxis for HIV prevention in heterosexual men and women. N Engl J Med. 2012 Aug 2;367(5):399-410. doi: 10.1056/NEJMoa1108524. Epub 2012 Jul 11.

    PubMed 22784037
  • MacLean F, Tsegaye AT, Graham JB, Swarts JL, Vick SC, Potchen NB, Cruz Talavera I, Warrier L, Dubrulle J, Schroeder LK, Saito A, Mar C, Thomas KK, Mack M, Sabo MC, Chohan BH, Ngure K, Mugo NR, Lingappa JR, Lund JM; Kinga Study Team. Bacterial vaginosis associates with dysfunctional T cells and altered soluble immune factors in the cervicovaginal tract. J Clin Invest. 2025 Mar 25;135(10):e184609. doi: 10.1172/JCI184609. eCollection 2025 May 15.

    PubMed 40131862

Questions about this trial

What is this clinical trial studying?

An observational study of HIV Infections and HSV-2 Infection, run by University of Washington at 1 site in Kenya.

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 16 inclusion and 11 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 3 Nov 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Kenya. 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.

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.

What does the primary outcome measure?

Prevalence of genital-tract tissue resident memory (TRM) cells (time frame: At 6 months of follow-up). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03701802, which also lists 13 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 3 Nov 2020.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in