NCT06738082

Brief Summary

This study aims to understand how well influenza vaccines work in some individuals with weakened immune systems compared to healthy individuals. Some people, such as those with HIV, multiple sclerosis, certain cancers, or autoimmune conditions, have more severe influenza disease courses due to their medical treatments. These individuals may also respond less effectively to vaccines. By comparing immune responses to the influenza vaccine in both immunocompromised patients and healthy participants, this study aims to identify patterns in vaccine effectiveness and side effects. The goal is to find better ways to predict vaccine response in vulnerable patients and improve protection against influenza.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
147

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Oct 2024

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

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 Start

First participant enrolled

October 15, 2024

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

December 12, 2024

Completed
5 days until next milestone

First Posted

Study publicly available on registry

December 17, 2024

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 31, 2025

Completed
Last Updated

March 26, 2025

Status Verified

March 1, 2025

Enrollment Period

4 months

First QC Date

December 12, 2024

Last Update Submit

March 25, 2025

Conditions

Keywords

influenzaimmunocompromisedvaccinationvaccineCAR-T

Outcome Measures

Primary Outcomes (1)

  • Influenza vaccine elicited humoral immune response

    The primary endpoint is the baseline variable adjusted fold-change of influenza HAI titers in immunosuppressed patients versus non-immunocompromised controls. The sum of foldchanges of hemagglutinin inhibition assay (HAI) titers 4-6 weeks after influenza vaccination will be adjusted for age, sex and baseline HAI titers by regression analysis as these three baseline variables are reported to affect influenza vaccine responses.

    Directly before and 4-6 weeks after Influenza vaccination

Secondary Outcomes (9)

  • Influenza vaccine elicited microneutralisation antibody titers

    Directly before and 4-6 weeks after Influenza vaccination

  • Seroprotection rate after influenza vaccination

    Directly before and 4-6 weeks after Influenza vaccination

  • Vaccine specific T-cell response

    Directly before and 4-6 weeks after Influenza vaccination

  • Vaccine Reactogenicity

    Directly before and 1 week after Influenza vaccination

  • Baseline Immune Profile

    Directly before Influenza vaccination (same day)

  • +4 more secondary outcomes

Study Arms (5)

Control Group

Non-immunocompromised controls

Biological: Influenza vaccine

CAR-T Cell Recipients

Patients with B-cell malignancies receiving anti-CD19 CAR T-cell therapies

Biological: Influenza vaccine

Rheumatological Disorders

Patients with rheumatological disorders on methothrexate treatment

Biological: Influenza vaccine

People living with HIV

People living with HIV on successful antiretroviral treatment

Biological: Influenza vaccine

Multiple Sclerosis

Patients with multiple sclerosis on treatment with sphingosine-1-phosphate-receptor-agonists

Biological: Influenza vaccine

Interventions

Standard, commercially available, quadrivalent split-vaccine against influenza is given to all study participants.

CAR-T Cell RecipientsControl GroupMultiple SclerosisPeople living with HIVRheumatological Disorders

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Adult (≥ 18 years old) patients with immunocuppression (Patients with B-cell malignancies after CAR-T cell therapy, multiple sclerosis on sphingosin-1 modulator therapy, rheumatological diseases on methotrexate therapy or people living with HIV on antiretroviral therapy) and non-immunocompromised participants as control group.

You may qualify if:

  • ≥ 18 years old
  • Diagnosed with rheumatological diseases on immunosuppressive therapies, or Multiple sclerosis on immune modulating therapies, or B-cell malignancies after CAR-T cell therapy, or o PLWH with CD4 cell count \>200/ul, or Non-immunocompromised individuals attending the University Clinic for Infectious Diseases to receive influenza vaccination.
  • Provided written informed consent.

You may not qualify if:

  • For People Living With HIV: untreated or ≥2 measured viral loads above 50cp/ml in preceding 6 months
  • For non-immunocompromised controls: any inborn or acquired condition resulting in immunosuppression.
  • Receiving B-cell depleting therapies in last 12 Months for MS, RA patients and PLWH
  • Receipt of Immunoglobulin-therapy (IVIG) ≤4 months prior to the drawing of study samples
  • \< 18 years old
  • Lack of written informed consent

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Universitsy Hospital Bern

Bern, 3010, Switzerland

Location

Related Publications (18)

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    PMID: 21377898BACKGROUND
  • van de Witte S, Nauta J, Montomoli E, Weckx J. A Phase III randomised trial of the immunogenicity and safety of quadrivalent versus trivalent inactivated subunit influenza vaccine in adult and elderly subjects, assessing both anti-haemagglutinin and virus neutralisation antibody responses. Vaccine. 2018 Sep 25;36(40):6030-6038. doi: 10.1016/j.vaccine.2018.04.043. Epub 2018 Apr 27.

    PMID: 29709447BACKGROUND
  • Pepin S, Donazzolo Y, Jambrecina A, Salamand C, Saville M. Safety and immunogenicity of a quadrivalent inactivated influenza vaccine in adults. Vaccine. 2013 Nov 12;31(47):5572-8. doi: 10.1016/j.vaccine.2013.08.069. Epub 2013 Sep 7.

    PMID: 24016810BACKGROUND
  • Lindemann M, Witzke O, Lutkes P, Fiedler M, Kreuzfelder E, Philipp T, Roggendorf M, Grosse-Wilde H. ELISpot assay as a sensitive tool to detect cellular immunity following influenza vaccination in kidney transplant recipients. Clin Immunol. 2006 Sep;120(3):342-8. doi: 10.1016/j.clim.2006.03.002. Epub 2006 Apr 21.

    PMID: 16631409BACKGROUND
  • Riese P, Trittel S, Akmatov MK, May M, Prokein J, Illig T, Schindler C, Sawitzki B, Elfaki Y, Floess S, Huehn J, Blazejewski AJ, Strowig T, Hernandez-Vargas EA, Geffers R, Zhang B, Li Y, Pessler F, Guzman CA. Distinct immunological and molecular signatures underpinning influenza vaccine responsiveness in the elderly. Nat Commun. 2022 Nov 12;13(1):6894. doi: 10.1038/s41467-022-34487-z.

    PMID: 36371426BACKGROUND
  • Ravichandran S, Erra-Diaz F, Karakaslar OE, Marches R, Kenyon-Pesce L, Rossi R, Chaussabel D, Nehar-Belaid D, LaFon DC, Pascual V, Palucka K, Paust S, Nahm MH, Kuchel GA, Banchereau J, Ucar D. Distinct baseline immune characteristics associated with responses to conjugated and unconjugated pneumococcal polysaccharide vaccines in older adults. Nat Immunol. 2024 Feb;25(2):316-329. doi: 10.1038/s41590-023-01717-5. Epub 2024 Jan 5.

    PMID: 38182669BACKGROUND
  • Hirzel C, Chruscinski A, Ferreira VH, L'Huillier AG, Natori Y, Han SH, Cordero E, Humar A, Kumar D; Influenza in Transplant Study Group. Natural influenza infection produces a greater diversity of humoral responses than vaccination in immunosuppressed transplant recipients. Am J Transplant. 2021 Aug;21(8):2709-2718. doi: 10.1111/ajt.16503. Epub 2021 Feb 18.

    PMID: 33484237BACKGROUND
  • Cheuvart B, Spiessens B, van Heesbeen R, Hung D, Andrade C, Korejwo-Peyramond J, Tavares-Da-Silva F. Harmonizing the collection of solicited adverse events in prophylactic vaccine clinical trials. Expert Rev Vaccines. 2023 Jan-Dec;22(1):849-859. doi: 10.1080/14760584.2023.2262571. Epub 2023 Oct 9.

    PMID: 37750613BACKGROUND
  • Reber A, Katz J. Immunological assessment of influenza vaccines and immune correlates of protection. Expert Rev Vaccines. 2013 May;12(5):519-36. doi: 10.1586/erv.13.35.

    PMID: 23659300BACKGROUND
  • Nakaya HI, Hagan T, Duraisingham SS, Lee EK, Kwissa M, Rouphael N, Frasca D, Gersten M, Mehta AK, Gaujoux R, Li GM, Gupta S, Ahmed R, Mulligan MJ, Shen-Orr S, Blomberg BB, Subramaniam S, Pulendran B. Systems Analysis of Immunity to Influenza Vaccination across Multiple Years and in Diverse Populations Reveals Shared Molecular Signatures. Immunity. 2015 Dec 15;43(6):1186-98. doi: 10.1016/j.immuni.2015.11.012.

    PMID: 26682988BACKGROUND
  • Caldera F, Mercer M, Samson SI, Pitt JM, Hayney MS. Influenza vaccination in immunocompromised populations: Strategies to improve immunogenicity. Vaccine. 2021 Mar 15;39 Suppl 1:A15-A23. doi: 10.1016/j.vaccine.2020.11.037. Epub 2021 Jan 7.

    PMID: 33422377BACKGROUND
  • Huang D, Liu AYN, Leung KS, Tang NLS. Direct Measurement of B Lymphocyte Gene Expression Biomarkers in Peripheral Blood Transcriptomics Enables Early Prediction of Vaccine Seroconversion. Genes (Basel). 2021 Jun 25;12(7):971. doi: 10.3390/genes12070971.

    PMID: 34202032BACKGROUND
  • Tsang JS, Dobano C, VanDamme P, Moncunill G, Marchant A, Othman RB, Sadarangani M, Koff WC, Kollmann TR. Improving Vaccine-Induced Immunity: Can Baseline Predict Outcome? Trends Immunol. 2020 Jun;41(6):457-465. doi: 10.1016/j.it.2020.04.001. Epub 2020 Apr 8.

    PMID: 32340868BACKGROUND
  • Hagan T, Gerritsen B, Tomalin LE, Fourati S, Mule MP, Chawla DG, Rychkov D, Henrich E, Miller HER, Diray-Arce J, Dunn P, Lee A; Human Immunology Project Consortium (HIPC); Levy O, Gottardo R, Sarwal MM, Tsang JS, Suarez-Farinas M, Sekaly RP, Kleinstein SH, Pulendran B. Transcriptional atlas of the human immune response to 13 vaccines reveals a common predictor of vaccine-induced antibody responses. Nat Immunol. 2022 Dec;23(12):1788-1798. doi: 10.1038/s41590-022-01328-6. Epub 2022 Oct 31.

    PMID: 36316475BACKGROUND
  • Luna G, Alping P, Burman J, Fink K, Fogdell-Hahn A, Gunnarsson M, Hillert J, Langer-Gould A, Lycke J, Nilsson P, Salzer J, Svenningsson A, Vrethem M, Olsson T, Piehl F, Frisell T. Infection Risks Among Patients With Multiple Sclerosis Treated With Fingolimod, Natalizumab, Rituximab, and Injectable Therapies. JAMA Neurol. 2020 Feb 1;77(2):184-191. doi: 10.1001/jamaneurol.2019.3365.

    PMID: 31589278BACKGROUND
  • Stewart AG, Henden AS. Infectious complications of CAR T-cell therapy: a clinical update. Ther Adv Infect Dis. 2021 Aug 24;8:20499361211036773. doi: 10.1177/20499361211036773. eCollection 2021 Jan-Dec.

    PMID: 34457269BACKGROUND
  • Furer V, Rondaan C, Heijstek M, van Assen S, Bijl M, Agmon-Levin N, Breedveld FC, D'Amelio R, Dougados M, Kapetanovic MC, van Laar JM, Ladefoged de Thurah A, Landewe R, Molto A, Muller-Ladner U, Schreiber K, Smolar L, Walker J, Warnatz K, Wulffraat NM, Elkayam O. Incidence and prevalence of vaccine preventable infections in adult patients with autoimmune inflammatory rheumatic diseases (AIIRD): a systemic literature review informing the 2019 update of the EULAR recommendations for vaccination in adult patients with AIIRD. RMD Open. 2019 Sep 19;5(2):e001041. doi: 10.1136/rmdopen-2019-001041. eCollection 2019.

    PMID: 31673420BACKGROUND
  • GBD 2017 HIV collaborators. Global, regional, and national incidence, prevalence, and mortality of HIV, 1980-2017, and forecasts to 2030, for 195 countries and territories: a systematic analysis for the Global Burden of Diseases, Injuries, and Risk Factors Study 2017. Lancet HIV. 2019 Dec;6(12):e831-e859. doi: 10.1016/S2352-3018(19)30196-1. Epub 2019 Aug 19.

    PMID: 31439534BACKGROUND

Related Links

Biospecimen

Retention: SAMPLES WITH DNA

Serum, EDTA Blood, PBMCs

MeSH Terms

Conditions

Influenza, Human

Interventions

Influenza Vaccines

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsOrthomyxoviridae InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract Diseases

Intervention Hierarchy (Ancestors)

Viral VaccinesVaccinesBiological ProductsComplex Mixtures

Study Officials

  • Christine Thurnheer, PD, MD

    University Hospital Bern, Switzerland

    PRINCIPAL INVESTIGATOR
  • Cédric Hirzel, PD, MD

    University Hospital Bern, Switzerland

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 12, 2024

First Posted

December 17, 2024

Study Start

October 15, 2024

Primary Completion

January 31, 2025

Study Completion

January 31, 2025

Last Updated

March 26, 2025

Record last verified: 2025-03

Data Sharing

IPD Sharing
Will not share

Locations