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Vaccination triplex CMV-MVA des donneurs de cellules souches dans la prévention de la virémie à CMV chez les participants atteints d'un cancer du sang subissant une greffe de cellules souches de donneur

3 septembre 2026 mis à jour par: City of Hope Medical Center

Vaccination triplex CMV-MVA des donneurs de cellules souches pour renforcer l'immunité spécifique au CMV et prévenir la virémie à CMV chez les receveurs après une greffe de cellules souches

This phase II trial studies how well multi-peptide CMV-modified vaccinia Ankara (CMV-MVA Triplex) vaccination of stem cell donors works in preventing cytomegalovirus (CMV) viremia in participants with blood cancer undergoing donor stem cell transplant. Giving a vaccine to the donors may boost the recipient's immunity to this virus and reduce the chance of CMV disease after transplant.

Aperçu de l'étude

Description détaillée

PRIMARY OBJECTIVES:

I. Establish the feasibility and safety of priming CMV immunity in donors by Triplex vaccination prior to peripheral blood stem cell (PBSC) harvest.

SECONDARY OBJECTIVES:

I. Examine if Triplex vaccination of hematopoietic stem cell transplant (HCT) donors has an impact on CMV events.

OUTLINE:

Donors receive multi-peptide CMV-modified vaccinia Ankara vaccine injection between days -60 and -10 prior to granulocyte colony stimulating factor mobilization. Participants undergo hematopoietic cell transplantation on day 0.

After completion of study treatment, participants are followed up for 1 year.

Type d'étude

Interventionnel

Inscription (Réel)

34

Phase

  • La phase 1

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Lieux d'étude

    • California
      • Duarte, California, États-Unis, 91010
        • City of Hope Medical Center

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

18 ans à 80 ans (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Oui

Sexes éligibles pour l'étude

Tout

La description

Inclusion Criteria:

  • DONOR: Ability to comprehend the investigational nature of the study and provide informed consent
  • DONOR: Willing to receive Triplex vaccination, a minimum of 14 days prior to the PBSC collection
  • DONOR VACCINATION: Donors are eligible to be vaccinated prior to the determination of their human immunodeficiency virus (HIV), hepatitis B virus (HBV), hepatitis C virus (HCV) and human T-cell lymphotropic virus (HTLV) status. The exclusion criteria for transplant is independent of eligibility for vaccination and is determined by the exclusion criteria for transplant from donors
  • RECIPIENT: All subjects must have the ability to understand and the willingness to sign a written informed consent
  • RECIPIENT: Participant must be willing to comply with study and/or follow-up procedures, including willingness to be followed for one year post-HCT
  • RECIPIENT: Age 18 to 75 years
  • RECIPIENT: Planned HCT for the treatment of the following hematologic malignancies: lymphoma (Hodgkin and non-Hodgkin), myelodysplastic syndrome, acute lymphoblastic leukemia in first or second remission, acute myeloid leukemia in first or second remission, chronic myelogenous leukemia (in first chronic or accelerated phase, or in second chronic phase), chronic lymphocytic leukemia, myeloproliferative disorders and myelofibrosis (City of Hope [COH] only). Patients with multiple myeloma are excluded
  • RECIPIENT: CMV seropositive
  • RECIPIENT: Planned related HCT with 8/8 (A, B, C, DRB1) high resolution HLA donor allele matching
  • RECIPIENT: Conditioning and immunosuppressive regimens according to institutional guidelines are permitted
  • RECIPIENT: Negative serum or urine beta-human chorionic gonadotropin (HCG) test (female patient of childbearing potential only) within two weeks of registration
  • RECIPIENT: Seronegative for HIV, HCV and active HBV (surface antigen negative) within 2 months of registration
  • RECIPIENT: Agreement by females of childbearing potential and males with partners of childbearing potential to use effective contraception (hormonal or barrier method or abstinence) prior to study entry and for up to 90 days post-HCT. Should a woman become pregnant or suspect that she is pregnant while participating on the trial, she should inform her treating physician immediately

Exclusion Criteria:

  • TRANSPLANT FROM DONOR: Unfit to undergo standard stem cell mobilization and apheresis e.g. abnormal blood counts, history of stroke, uncontrolled hypertension
  • TRANSPLANT FROM DONOR: Sickling hemoglobinopathy including HbSS, HbAS, HbSC
  • TRANSPLANT FROM DONOR: Positive for human immunodeficiency virus (HIV), active hepatitis B (hepatitis B virus [HBV]), hepatitis C (hepatitis C virus [HCV]) or human T-cell lymphotropic virus (HTLV-I/II). This holds true even if donors have been already vaccinated according to criteria for donor vaccination
  • TRANSPLANT FROM DONOR: Donors with impaired cardiac function are excluded. Electrocardiography is routine for potential HCT donors over 60 years old and those with a history of heart disease. Subjects in whom cardiac function is abnormal (excluding 1st degree branch block, sinus brachycardia, sinus tachycardia or non-specific T wave changes) are ineligible for Triplex vaccination
  • TRANSPLANT FROM DONOR: Severe psychiatric illness. Mental deficiency sufficiently severe as to make compliance with the donation procedure unlikely, and making informed consent impossible
  • RECIPIENT: Any prior investigational CMV vaccine
  • RECIPIENT: Experimental anti-CMV chemotherapy in the last 6 months
  • RECIPIENT: Planned medications from the time of HCT to day 70 post-HCT
  • RECIPIENT: Live attenuated vaccines
  • RECIPIENT: Medically indicated subunit (Engerix-B for HBV; Gardasil for human papillomavirus [HPV]) or killed vaccines (e.g. influenza, pneumococcal, or allergy treatment with antigen injections)
  • RECIPIENT: Allergy treatment with antigens injections
  • RECIPIENT: Alemtuzumab or any equivalent in vivo T-cell depleting agent
  • RECIPIENT: Antiviral medications with known therapeutic effects on CMV such as ganciclovir (GCV)/valganciclovir (VAL), FOS, Cidofovir, CMX-001, maribavir. Acyclovir has no known therapeutic efficacy against CMV and is allowable as standard of care to prevent Herpes simplex virus (HSV)
  • RECIPIENT: Prophylactic therapy with CMV immunoglobulin or prophylactic antiviral CMV treatment (Letermovir is permitted). EXCEPT for low risk patients [8/8 high resolution HLA donor allele matching HCT])
  • RECIPIENT: Other investigational product - concurrent enrollment in other clinical trials using any investigational new drug (IND) drugs with unknown effects on CMV or with unknown toxicity profiles is prohibited
  • RECIPIENT: Other medications that might interfere with the evaluation of the investigational product
  • RECIPIENT: Diagnosis with autoimmune disease
  • RECIPIENT: Pregnant women and women who are lactating. The risks of CMV-MVA-Triplex to pregnant women are unknown. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother. Breastfeeding should be discontinued if the mother is enrolled on this study
  • RECIPIENT: Any other condition that would, in the investigator's judgment, contraindicate the patient's participation in the clinical study due to safety concerns or compliance with clinical study procedures, e.g., social/ psychological issues, etc
  • RECIPIENT: Prospective participants who, in the opinion of the investigator, may not be able to comply with all study procedures (including compliance issues related to feasibility/logistics)

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Soins de soutien
  • Répartition: Non randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: Donor (multi-peptide CMV-modified vaccinia Ankara vaccine)

Donors receive multi-peptide CMV-modified vaccinia Ankara vaccine injection between days -60 and -10 prior to granulocyte colony stimulating factor mobilization.

Given via injection

Autres noms:
  • Vaccin triplex CMV-MVA
Expérimental: Receipient (multi-peptide CMV-modified vaccinia Ankara vaccine)

Participants undergo hematopoietic cell transplantation on day 0 and receive multi-peptide CMV-modified Vaccinia Ankara vaccine injection on days 28 and 56.

Given via injection

Autres noms:
  • Vaccin triplex CMV-MVA

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Delayed Engraftment
Délai: Up to 1 year from stem cell infusion.

Time to neutrophil engraftment was defined as days from stem cell infusion to the first of three consecutive days of absolute neutrophil count ≥0.5 x 109/L. Delayed engraftment was defined as ≥20 days to neutrophil recovery.

Up to 1 year from stem cell infusion.
Severe (Grade III-IV) Acute Graft Versus Host Disease
Délai: Up to 6 months from stem cell infusion

Acute graft versus host disease (aGvHD) happens within days or as late as 6 months after allogeneic transplants. The three main tissues that acute GVHD affects are the skin, liver, and gastrointestinal tract.

Up to 6 months from stem cell infusion
Number of Recipients With Grade 3-4 Adverse Events
Délai: Up to 1 year from stem cell infusion.

Toxicities were assessed in recipients by Common Terminology Criteria for Adverse Events version 4.0.

Up to 1 year from stem cell infusion.
Number of Donors With Grade 2-3 Adverse Events
Délai: Up to 6 months after G-CSF mobilization

Toxicities were assessed in recipients by Common Terminology Criteria for Adverse Events version 4.0.

Up to 6 months after G-CSF mobilization
100-Day Non-Relapse Mortality (NRM)
Délai: From stem cell infusion up to 100 days post-HSCT (hematopoietic stem cell transplantation).

NRM was defined as death without recurrent or progressive disease after allogeneic transplant. Probabilities of NRM were estimated with the use of cumulative incidence curves, with relapse viewed as a competing risk.

From stem cell infusion up to 100 days post-HSCT (hematopoietic stem cell transplantation).

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Les enquêteurs

  • Chercheur principal: Ryotaro Nakamura, MD, City of Hope Medical Center

Publications et liens utiles

La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

20 août 2018

Achèvement primaire (Réel)

22 janvier 2022

Achèvement de l'étude (Estimé)

28 juin 2027

Dates d'inscription aux études

Première soumission

7 juin 2018

Première soumission répondant aux critères de contrôle qualité

7 juin 2018

Première publication (Réel)

18 juin 2018

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

28 septembre 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

3 septembre 2026

Dernière vérification

1 septembre 2026

Plus d'information

Termes liés à cette étude

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Oui

Étudie un produit d'appareil réglementé par la FDA américaine

Non

produit fabriqué et exporté des États-Unis.

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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