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Ibrutinib Combined With Rituximab for Treatment of Relapsed Refractory MYD88 and CD79A/B (or CD79B Alone) DLBCL Who Have Received at Least Two Prior Therapies

3. August 2021 aktualisiert von: Shi Yuankai, Cancer Institute and Hospital, Chinese Academy of Medical Sciences

Phase II, Multi-Center Study to Evaluate the Efficacy and Safety of Ibrutinib Combined With Rituximab for Treatment of Relapsed Refractory MYD88 and CD79A/B (or CD79B Alone) DLBCL Who Have Received at Least Two Prior Therapies

The purpose of this study is to evaluate the efficacy and safety of Ibrutinib Combined With Rituximab in Relapsed Refractory MYD88 and CD79A/B (or CD79B Alone) DLBCL Who Have Received at Least Two Prior Therapies.

Studienübersicht

Detaillierte Beschreibung

Recent studies have found that about 30% of DLBCL have mutations in MYD88 and/or CD79A/B genes. MYD88 and CD79A/B protein molecules belong to two signal transduction pathways, which regulate B cell proliferation. Both MYD88 and CD79A/B gene mutations can abnormally activate BTK located downstream of MYD88 and CD79A/B, leading to over activation and proliferation of B cells.

Ibrutinib is the first generation of oral BTKi, which may theoretically inhibit the tumorigenesis of DLBCL with abnormal BTK activation caused by mutations in MYD88 and CD79A/B genes.

A phase II clinical study of ibrutinib monotherapy in the treatment of relapsed and refractory DLBCL showed that the effective rate of ibutinib for single CD79B mutation was 55.5% (5/9 cases), and that for both CD79B and MYD88 mutations was 80% (4/5 cases). About 40 ~ 50% of primary central nervous system large B cell lymphoma (PCNSL) have CD79B and MYD88 mutations. A small sample study found that the overall response rate (ORR) for the treatment of relapsed and refractory PCNSL with ibrutinib was 77% (10/13). An expanded sample study of 44 cases of PCNSL treated with ibrutinib found that the ORR is 52% and progression-free survival (PFS) is 4.8 months. These results suggest that ibrutinib may be more effective in DLBCL with MYD88 and CD79A/B or CD79B mutations.

The relationship between mutations in MYD88 and CD79B and therapeutic sensitivity of ibrutinib can not be simply categorized, because abnormalities in other genes of B cell signaling pathway, such as CARD11, TNFAIP3, CXCR4, JAK1 and PIM1, may also affect the efficacy of ibrutinib. Therefore, it is necessary to comprehensively analyze the gene abnormalities of other B cell related signaling pathways, such as downstream signal of Bruton kinase, CXCR, JAK-STAT, and NFKB, to find out the most effective group of DLBCL patients treated with ibrutinib.

This phase II, single-arm, open-label, multi-center clinical trial will evaluate the efficacy and safety of ibrutinib combined with rituximab in treating relapsed refractory MYD88 and CD79A/B (or CD79B alone) DLBCL who have received at least two prior therapies. The study will also explore the relationship between MYD88 and/or CD79A/B and efficacy, and detect the gene abnormality by Next Generation Sequencing (NGS) and evaluate the relationship between other gene abnormality and efficacy.

Studientyp

Interventionell

Einschreibung (Voraussichtlich)

20

Phase

  • Phase 2

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studieren Sie die Kontaktsicherung

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

18 Jahre bis 80 Jahre (Erwachsene, Älterer Erwachsener)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Alle

Beschreibung

Inclusion Criteria:

  1. Participants must be able to understand and be willing to sign a written informed consent document;
  2. Men and woman who are at least 18 years of age on the day of consenting to the study;
  3. According to the WHO 2016 classification criteria, pathologically confirmed CD20+diffuse large B-cell lymphoma;
  4. Patients with MYD88 and CD79A/B mutations or CD79B alone;
  5. Relapse or progression after treatment with at least two prior therapies;
  6. There is at least one measurable lesion, defined as a two-path measurable, intraductal lesion short neck >1.5cm, extranodal lesion short diameter >1.0cm;
  7. Eastern Cooperative Oncology Group (ECOG) performance status =< 2
  8. Blood routine examination meets the following criteria:

    Neutrophil count ≥ 1.0 x 109 / L; Platelet ≥ 75 x 109 / L; Hemoglobin ≥ 10.0 g / dL;

  9. The main organ function meets the following criteria:

    Aspartate aminotransferase and alanine aminotransferase ≤ 2.0 times the upper limit of normal value; Bilirubin ≤ 2.0 mg / dL; Creatinine clearance rate ≥ 60 mL / min;

  10. Must agree to effective contraception

Exclusion Criteria:

  1. Transformed diffuse large B-cell lymphoma;
  2. HBV DNA positive or HCV RNA positive;
  3. Patient is known to have an uncontrolled active systemic infection;
  4. Left ventricular ejection fraction < 40%;
  5. Previous autoimmune diseases, including but not limited to systemic lupus erythematosus, rheumatoid arthritis, dry syndrome, ankylosing spondylitis, etc;
  6. Immunosuppressive drugs are being or have been used in the past;
  7. Known hypersensitivity to the study drug or any of its excipients;
  8. There are other active malignant tumors that may interfere with this study requiring treatment;
  9. Known history of human immunodeficiency virus (HIV) infection;
  10. Previous autologous stem cell transplantation or allogeneic hematopoietic stem cell transplantation;
  11. The investigator judges that the patient has other inappropriate circumstances.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: N / A
  • Interventionsmodell: Einzelgruppenzuweisung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: Ibrutinib Combined With Rituximab

Induction therapy: Ibrutinib 560mg administered oral once a day of each 21-day cycle for 6 cycles. Rituximab 375mg/m² administered intravenously (IV) on Day 1 of each 21-day cycle for 6 cycles.

Maintenance therapy: Ibrutinib 560mg administered oral once a day of each 56-day cycle for 6 cycles. Rituximab 375mg/m² administered intravenously (IV) on Day 1 of each 56-day cycle for 6 cycles.

Drug: ibrutinib ibrutinib 560mg administered orally once daily. Other Name: Imbruvica

Drug: rituximab rituximab 375mg/m² administered intravenously (IV)

Andere Namen:
  • Imbruvica Combined With Rituximab

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Objective Response Rate(ORR)
Zeitfenster: 24 months after the last patient's enrollment
The ORR includes complete response and partial response. The treatment response assessments are as follows: Evaluation of treatment response are performed every 2 cycles followed the International Lymphoma Collaborative Group guidelines.
24 months after the last patient's enrollment

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Progression Free Survival (PFS)
Zeitfenster: at 6 month and 1 year
From the date into this study to disease progression or death
at 6 month and 1 year
Overall Survival (OS)
Zeitfenster: at 6 month and 1 year
From the date into this study to death
at 6 month and 1 year
Event Free Survival (EFS)
Zeitfenster: at 6 month and 1 year
From the date into this study to disease progression, relapse from CR as assessed by the investigator, completion of study treatment followed by subsequent systemic anti-lymphoma therapy, or death from any cause, whichever occurred first.
at 6 month and 1 year
Adverse events
Zeitfenster: 24 months after the last patient's enrollment
AEs will be evaluated using the NCI CTCAE v4.0.
24 months after the last patient's enrollment
Assessment of the correlation between MYD88 and/or CD79A/B or other gene abnormality and efficacy.
Zeitfenster: 24 months after the last patient's enrollment
To explore the relationship between MYD88 and/or CD79A/B and efficacy and to detect the gene abnormality by Next Generation Sequencing (NGS) and evaluate the relationship between other gene abnormality and efficacy.
24 months after the last patient's enrollment

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Ermittler

  • Hauptermittler: Yuankai Shi, M.D., Cancer Hospital Chinese Academy of Medical Sciences & Peking Union Medical College

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Voraussichtlich)

1. Oktober 2021

Primärer Abschluss (Voraussichtlich)

1. April 2022

Studienabschluss (Voraussichtlich)

1. Juli 2025

Studienanmeldedaten

Zuerst eingereicht

3. August 2021

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

3. August 2021

Zuerst gepostet (Tatsächlich)

6. August 2021

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

6. August 2021

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

3. August 2021

Zuletzt verifiziert

1. August 2021

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

Nein

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .

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