- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT07579247
Efficacy and Safety of Immune Checkpoint Inhibitors for Refractory Opportunistic Infections in AIDS
A Study on the Efficacy and Safety of Immune Checkpoint Inhibitors in the Treatment of AIDS Complicated With Refractory Opportunistic Infections
This prospective, single-arm, open-label study aims to evaluate the efficacy and safety of a PD-1 inhibitor (Sintilimab) combined with standard anti-infective therapy in patients with advanced HIV disease (AHD) who are suffering from refractory opportunistic infections (OIs).
Despite effective antiretroviral therapy (ART), some HIV patients develop severe, hard-to-treat infections (such as CMV, PCP, Tuberculosis, etc.) that do not respond to standard antimicrobial treatments. This is often due to a condition called "immune exhaustion," where the body's infection-fighting T-cells become inactive and express high levels of a protein called PD-1.
Sintilimab is an immune checkpoint inhibitor that blocks PD-1, effectively "waking up" the exhausted T-cells. While traditionally used for cancer, recent evidence suggests it can safely restore the immune system's ability to clear stubborn infections in HIV patients. In this study, eligible patients with refractory OIs and evidence of immune exhaustion will receive Sintilimab (200 mg intravenously every 3 weeks for a total of 3 doses) alongside their regular treatments. Researchers will monitor patient safety, clinical improvement, and immunological recovery.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Type d'étude
Inscription (Estimé)
Phase
- Phase 2
- La phase 1
Contacts et emplacements
Coordonnées de l'étude
- Nom: Jun Chen
- Numéro de téléphone: 021-37990333
- E-mail: chenjun@shaphc.org
Lieux d'étude
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Shanghai Municipality
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Shanghai, Shanghai Municipality, Chine, 201508
- Shanghai Public Health Clinical Center
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Contact:
- Jun Chen
- Numéro de téléphone: 021-37990333
- E-mail: chenjun@shaphc.org
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-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
La description
Inclusion Criteria:
Age ≥ 18 years. Confirmed HIV-1 infection.
Must have at least one opportunistic infection meeting the "refractory" criteria after currently available standard anti-infective treatment, defined as follows:
- Parvovirus B19: Hemoglobin (Hb) fails to recover (increase <10g/L) or requires transfusion maintenance, with reticulocytes persistently <1% after 4 weeks of Intravenous Immunoglobulin (IVIG) therapy.
- Cytomegalovirus (CMV): Blood/body fluid CMV-DNA decrease <1 log10 or new/worsening organ damage after 2 weeks of Ganciclovir or Foscarnet therapy.
- Mpox virus: Unhealed lesions, new lesions, necrotic coalescence, or no decrease in viral load after 14 days of Tecovirimat, Cidofovir, or Brincidofovir therapy.
- Progressive Multifocal Leukoencephalopathy (PML): Continuous deterioration of neurological symptoms or expanded lesion area on MRI after 3 months of optimized antiretroviral therapy (ART).
- Pneumocystis jirovecii pneumonia (PCP): No improvement in oxygenation index or expanded radiological lesions after 8 days of adequate SMZ-TMP therapy.
- Cryptococcal meningitis: Persistently positive cerebrospinal fluid (CSF) culture after 4 weeks of induction therapy.
- Talaromyces marneffei / Invasive Aspergillosis: Persistently positive culture or progression of radiological/clinical symptoms after 2 weeks of Amphotericin B or Voriconazole therapy.
- Mycobacterium tuberculosis (TB): Persistently positive sputum smear or culture after 2 months of standard anti-tuberculosis therapy.
- Nontuberculous mycobacteria (NTM): No improvement in clinical symptoms after 1 month of standard therapy, or culture not turning negative after 3 months.
High PD-1 expression on peripheral CD8+ T cells (>25%) OR weak pathogen-specific ELISpot response (<50 SFCs/10^6 cells).
Agreement to use highly effective contraception during the study and for 6 months after the end of the trial.
Voluntary signing of informed consent.
Exclusion Criteria:
History of active autoimmune disease or autoimmune disease requiring systemic treatment.
Prior organ transplantation or hematopoietic stem cell transplantation. Pregnant or lactating women. Known allergy or anti-drug antibodies to the study drug or its excipients. Prior treatment or exposure to any other immune checkpoint inhibitors. Received immunomodulatory or immunosuppressive therapy (excluding glucocorticoids) within 24 weeks prior to the first dose of the study drug.
Psychiatric disorders or substance abuse that may interfere with the trial. Other severe medical conditions deemed by the investigator as unsuitable for trial participation (e.g., uncontrolled severe heart, liver, or renal failure).
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: N / A
- Modèle interventionnel: Affectation à un seul groupe
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Expérimental: Treatment Group
Patients with advanced HIV disease and refractory opportunistic infections receive Sintilimab combined with standard anti-infective therapy and antiretroviral therapy (ART).
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Sintilimab 200 mg dissolved in 100 ml normal saline, administered via intravenous infusion (60 minutes) once every 3 weeks for a total of 3 doses (Days 1, 22, and 43).
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Pathogen Clearance Rate
Délai: From enrollment to the end of treatment at 9 weeks
|
The proportion of patients achieving microbiological clearance (e.g., negative culture or negative PCR) of the specific refractory opportunistic infection.
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From enrollment to the end of treatment at 9 weeks
|
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Patient Mortality Rate
Délai: From enrollment to the end of treatment at 9 weeks
|
The proportion of patients who die from any cause during the study period.
|
From enrollment to the end of treatment at 9 weeks
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Incidence of Treatment-Related Adverse Events (TRAEs)
Délai: From enrollment to the end of treatment at 9 weeks
|
Safety will be assessed by recording the incidence and severity of adverse events related to the study drug, graded according to the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0.
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From enrollment to the end of treatment at 9 weeks
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Collaborateurs et enquêteurs
Parrainer
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Estimé)
Achèvement primaire (Estimé)
Achèvement de l'étude (Estimé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
- Infections transmissibles par le sang
- Maladies urogénitales
- Maladies génitales
- Maladies du système immunitaire
- Infections
- Infections par virus à ARN
- Maladies virales
- Maladies transmissibles
- Maladies sexuellement transmissibles, virales
- Maladies sexuellement transmissibles
- Infections à lentivirus
- Infections à rétroviridae
- Syndromes d'immunodéficience
- Maladies à virus lents
- Infections à VIH
- Syndrome immunodéficitaire acquis
- Infections opportunistes
- sinttilimab
Autres numéros d'identification d'étude
- 2026-S017
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Description du régime IPD
Délai de partage IPD
Critères d'accès au partage IPD
Type d'informations de prise en charge du partage d'IPD
- PROTOCOLE D'ÉTUDE
- SÈVE
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
Étudie un produit d'appareil réglementé par la FDA américaine
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