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Study on the Effect of Oral Diammonium Glycyrrhizinate in Attenuating Toxicity and Enhancing Efficacy of CAR-T Cell Therapy

29 maggio 2026 aggiornato da: Jia Wei, Tongji Hospital

A Single-Center, Prospective, Randomized Controlled Clinical Study of Oral Diammonium Glycyrrhizinate for Attenuating Toxicity and Enhancing Efficacy of CAR-T Cell Therapy

The purpose of this study is to evaluate the effect of oral diammonium glycyrrhizinate in reducing toxicity and enhancing efficacy of CAR-T cell therapy in patients with large B-cell lymphoma. Two main questions are addressed: 1) Can oral diammonium glycyrrhizinate reduce the incidence and severity of CRS induced by CAR-T cells? 2) Can oral diammonium glycyrrhizinate synergistically increase the therapeutic efficacy of CAR-T cell therapy?

Panoramica dello studio

Descrizione dettagliata

Current studies suggest that regulating pyroptosis may play a role in reducing toxicity and enhancing efficacy during CAR-T cell therapy by alleviating cytokine release syndrome (CRS) and improving the tumor microenvironment (TME). Glycyrrhizic acid has been clearly shown to inhibit pyroptosis and is widely recognized for its broad-spectrum anti-inflammatory effects and ability to improve the TME. Therefore, it holds promise as an ideal intervention for preventing/treating CRS induced by CAR-T cells and for synergistically enhancing the therapeutic efficacy of CAR-T cell therapy. Accordingly, this study aims to investigate the effect of oral diammonium glycyrrhizinate in reducing toxicity and enhancing efficacy of CAR-T cell therapy in patients with large B-cell lymphoma.

Tipo di studio

Interventistico

Iscrizione (Stimato)

21

Fase

  • Fase 2
  • Fase 3

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Adulto
  • Adulto più anziano

Accetta volontari sani

No

Descrizione

Inclusion Criteria:

  1. Age ≥ 18 years.
  2. Patients diagnosed with large B-cell lymphoma and receiving CAR-T cell therapy.
  3. Adequate organ function prior to enrollment: ALT and AST ≤ 2.5 × ULN (upper limit of normal); may be extended to ≤5 × ULN in patients with liver involvement; serum total bilirubin < 34 μmol/L; creatinine clearance > 30 mL/min; cardiac ejection fraction (EF) ≥ 40%, with no pericardial effusion or significant arrhythmia; room air SpO₂ ≥ 92%.
  4. No central nervous system involvement of lymphoma confirmed by MRI prior to enrollment.
  5. Subjects of childbearing potential must agree to use highly effective contraceptive methods.
  6. The subject or their legal guardian must be able to understand and voluntarily sign a written informed consent form.

Exclusion Criteria:

  1. Presence of a prior malignancy (other than the disease under study) that requires ongoing systemic treatment for any other malignant tumor.
  2. Presence of any life-threatening disease, medical condition, or organ system dysfunction that, in the investigator's judgment, may compromise patient safety or interfere with the interpretation of safety or efficacy data.
  3. Current or prior central nervous system (CNS) involvement by malignancy.
  4. Receipt of allogeneic stem cell transplantation within 6 months prior to enrollment, or autologous stem cell transplantation within 3 months prior to enrollment; and the patient must have no signs or symptoms of graft-versus-host disease and must not be receiving immunosuppressive therapy.
  5. Intolerance or allergy to glycyrrhizic acid preparations.
  6. Patient refuses to comply with the study requirements to complete the research work.
  7. In the investigator's judgment, the patient is unable to complete the study or comply with the study requirements (due to administrative reasons or other reasons), or is considered unsuitable for clinical trial participation for other reasons.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Terapia di supporto
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Experimental group
At the time of CAR-T cell infusion, oral diammonium glycyrrhizinate is given in addition to standard clinical care (first two weeks: 150 mg three times daily; thereafter, 100 mg once daily, continued orally for 2 years).
For the experimental group, at the time of CAR-T cell infusion, oral diammonium glycyrrhizinate is given in addition to standard clinical care (first two weeks: 150 mg three times daily; thereafter, 100 mg once daily, continued orally for 2 years).
Nessun intervento: Control group
For the control group, after CAR-T cell infusion, standard clinical care is provided without additional diammonium glycyrrhizinate intervention.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
CRS
Lasso di tempo: Within 28 days post CAR-T cell infusion
CRS incidence and incidence of grade ≥3 CRS
Within 28 days post CAR-T cell infusion

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Complete remission rate
Lasso di tempo: Assessments are performed every 3 months within the first two years after CAR-T infusion
Proportion of participants achieving Complete Response (CR) at the end of treatment. Efficacy is evaluated by both investigators and independent imaging personnel based on PET-CT or CT.
Assessments are performed every 3 months within the first two years after CAR-T infusion
Objective Response Rate
Lasso di tempo: Assessments are performed every 3 months within the first two years after CAR-T infusion
Objective Response Rate(ORR) is defined as the proportion of subjects achieving complete remission(CR) and partial response(PR). Efficacy is evaluated by both investigators and independent imaging personnel based on PET-CT or CT.
Assessments are performed every 3 months within the first two years after CAR-T infusion
Duration of response
Lasso di tempo: Assessments are performed during the first two years following CAR-T infusion.
Time from documentation of tumor response (CR or PR) to disease progression or death. Efficacy is evaluated by both investigators and independent imaging personnel based on PET-CT or CT.
Assessments are performed during the first two years following CAR-T infusion.
Overall survival
Lasso di tempo: Up to 2 years as per long-term follow-up mentions
The time from confirmed diagnosis to death from any cause.
Up to 2 years as per long-term follow-up mentions
Progression-free survival
Lasso di tempo: Assessments are performed during the first two years following CAR-T infusion
The time interval from the start of treatment to tumor progression (PD) or death from any cause.
Assessments are performed during the first two years following CAR-T infusion
Level of CAR-T cell persistence
Lasso di tempo: Assessments are performed every 3 months within the first year after CAR-T infusion
Duration of CAR-T cell persistence in patients
Assessments are performed every 3 months within the first year after CAR-T infusion
Adverse events
Lasso di tempo: Assessments are performed during the first two years following CAR-T infusion
Adverse events following CAR-T cell infusion
Assessments are performed during the first two years following CAR-T infusion

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Investigatori

  • Investigatore principale: Jia Wei, Tongji Hospital

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

22 maggio 2026

Completamento primario (Stimato)

31 maggio 2029

Completamento dello studio (Stimato)

31 maggio 2030

Date di iscrizione allo studio

Primo inviato

21 maggio 2026

Primo inviato che soddisfa i criteri di controllo qualità

29 maggio 2026

Primo Inserito (Effettivo)

1 giugno 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

1 giugno 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

29 maggio 2026

Ultimo verificato

1 maggio 2026

Maggiori informazioni

Termini relativi a questo studio

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

Prove cliniche su Patients With Large B-cell Lymphoma Receiving CAR-T Cell Therapy

Prove cliniche su Diammonium glycyrrhizinate Capsules

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