- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT07688759
CMV-CMI in csCMVi After HSCT
Study of CMV Specific Immune Reconstitution in Patients With Clinical Significant CMV Infection After Allogeneic Hematopoietic Stem Cell Transplantation (Allo-HSCT)
Cytomegalovirus (CMV) reactivation is a common and serious complication after allogeneic hematopoietic stem cell transplantation (allo-HSCT), and the reconstitution of CMV-specific cell-mediated immunity (CMV-CMI) plays a key role in viral control.
This prospective, exploratory study will enroll 40 adult CMV-seropositive patients who experience their first CMV reactivation after allo-HSCT. CMV-specific T cell levels (IFN-γ-producing T cells stimulated by IE-1 and pp65 antigens) will be measured using ELISPOT at four time points: at diagnosis of CMV viremia, 3 weeks after initiating preemptive therapy, at anti-CMV drug withdrawal, and 4 weeks after treatment discontinuation. Patients will be followed for 12 weeks after stopping treatment.
The primary objective is to describe the changes in CMV-specific T cell levels over the therapy. Secondary objectives are to explore the relationship between these levels and the occurrence of refractory CMV infection, recurrent CMV infection, and CMV disease. Findings may help identify patients at high risk of progressing to severe or persistent CMV infection at an early stage of preemptive therapy, enabling personalized intervention strategies.
Studienübersicht
Status
Bedingungen
Intervention / Behandlung
Studientyp
Einschreibung (Geschätzt)
Kontakte und Standorte
Studienkontakt
- Name: Feng Chen, MD
- Telefonnummer: +8613584861215
- E-Mail: 13584861215@163.com
Studienorte
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Jiangsu
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Suzhou, Jiangsu, China
- Rekrutierung
- The First Affiliated Hospital of Soochow University
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Kontakt:
- The First Affiliated Hospital of Soochow University
- Telefonnummer: +86 512 67972861
- E-Mail: sdfyec@163.com
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Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Probenahmeverfahren
Studienpopulation
Beschreibung
Inclusion Criteria:
- ≥18 years old and underwent allogeneic hematopoietic stem cell transplantation (allo-HSCT);
- First CMV reactivation after transplantation;
- Life expectancy of ≥8 weeks;
- The participant (or legally acceptable representative, if applicable) has provided written informed consent for the trial.
Exclusion Criteria:
- Recurrence of CMV infection;
- primary CMV infection in CMV-seronegative recipients (R-);
- Resistance to known anti-CMV drugs (ganciclovir, valganciclovir, foscarnet, maribavir, etc.);
- Currently receiving CMV-CTL treatment or lymphocyte infusion.
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
Kohorten und Interventionen
Gruppe / Kohorte |
Intervention / Behandlung |
|---|---|
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CMV Reactivation Cohort
Adult CMV-seropositive patients (≥18 years) who experience first CMV reactivation after allogeneic hematopoietic stem cell transplantation (allo-HSCT).
Therapy with anti-CMV drugs (mono- or combination therapy, at investigator's discretion) is initiated upon diagnosis of CMV viremia and continued until two consecutive negative CMV DNA tests separated by ≥5 days.
CMV-specific T cell levels are measured by ELISPOT at four time points: at CMV viremia diagnosis, 3 weeks after starting preemptive therapy, at anti-CMV drug withdrawal, and 4 weeks after treatment discontinuation.
Patients are followed for 12 weeks after treatment cessation.
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The choice of agent (monotherapy or combination) is at the investigator's discretion and may include ganciclovir, valganciclovir, foscarnet, maribavir, or other approved anti-CMV medications.
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Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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CMV-specific T cells
Zeitfenster: from baseline to 4 weeks after end of treatment, an average of 8 weeks
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Number of IFN-γ-producing T cells per 250,000 PBMCs measured by ELISPOT
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from baseline to 4 weeks after end of treatment, an average of 8 weeks
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Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Zeitfenster |
|---|---|
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Cumulative incidence of refractory CMV infection
Zeitfenster: From Day 1 (first anti-CMV dose) through EOT (inclusive), an average of 4 weeks
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From Day 1 (first anti-CMV dose) through EOT (inclusive), an average of 4 weeks
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Cumulative incidence of CMV disease
Zeitfenster: From EOT+1 day through 12 weeks after EOT(end of follow-up)
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From EOT+1 day through 12 weeks after EOT(end of follow-up)
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Cumulative incidence of recurrent CMV infection
Zeitfenster: From EOT+1 day through 12 weeks after EOT (end of follow-up)
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From EOT+1 day through 12 weeks after EOT (end of follow-up)
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Cumulative incidence of acute graft-versus-host disease (aGVHD)
Zeitfenster: From Day 1 through 12 weeks after EOT (end of follow-up)
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From Day 1 through 12 weeks after EOT (end of follow-up)
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Overall survival
Zeitfenster: From Day 1 through 12 weeks after EOT (end of follow-up).
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From Day 1 through 12 weeks after EOT (end of follow-up).
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Andere Ergebnismessungen
Ergebnis Maßnahme |
Zeitfenster |
|---|---|
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Cumulative incidence of non-relapse mortality (NRM)
Zeitfenster: From Day 1 through 12 weeks after EOT (end of follow-up).
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From Day 1 through 12 weeks after EOT (end of follow-up).
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Mitarbeiter und Ermittler
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Primärer Abschluss (Geschätzt)
Studienabschluss (Geschätzt)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
- CMV-CMI in csCMVi
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Beschreibung des IPD-Plans
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