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Uno studio su Obinutuzumab [RO5072759 (GA101)] in combinazione con chemioterapia CHOP in pazienti con linfoma diffuso a grandi cellule B avanzato non trattato in precedenza (GATHER)

24 settembre 2026 aggiornato da: Genentech, Inc.

Uno studio di fase II, in aperto, multicentrico su efficacia, sicurezza e biomarcatori in pazienti con linfoma diffuso a grandi cellule B avanzato non precedentemente trattato trattati con GA101 (RO5072759) in combinazione con chemioterapia CHOP

This open-label, multicenter study will evaluate the efficacy and safety of obinutuzumab [RO5072759 (GA101)] in combination with CHOP (Cyclophosphamide, Doxorubicin, Vincristine, Prednisone) chemotherapy in patients with advanced diffuse large B-cell lymphoma. Patients will receive 8 cycles of obinutuzumab (1000 mg intravenously on Day 1 of each 21-day cycle, during Cycle 1 obinutuzumab will also be infused on Days 8 and 15) in combination with CHOP chemotherapy on Day 1 of cycles 1 to 6. A substudy will investigate the drug-drug interaction of obinutuzumab with CHOP chemotherapy agents. For the substudy, an additional cohort of approximately 15 patients are planned to be enrolled at a subset of investigational sites.

Panoramica dello studio

Stato

Completato

Condizioni

Intervento / Trattamento

Tipo di studio

Interventistico

Iscrizione (Effettivo)

100

Fase

  • Fase 2

Contatti e Sedi

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

Luoghi di studio

    • Alabama
      • Birmingham, Alabama, Stati Uniti, 35294-3300
        • University of Alabama at Birmingham
    • California
      • Encinitas, California, Stati Uniti, 92024
        • cCare
    • Colorado
      • Aurora, Colorado, Stati Uniti, 80045
        • University of Colorado Cancer Center Department of Hematology
      • Denver, Colorado, Stati Uniti, 80218
        • Rocky Mountain Cancer Ctr - Denver (Williams)
    • Connecticut
      • Norwalk, Connecticut, Stati Uniti, 06856
        • Norwalk Hospital
    • Florida
      • Fort Myers, Florida, Stati Uniti, 33901-8101
        • Florida Cancer Specialists; Department of Oncology
      • St. Petersburg, Florida, Stati Uniti, 33719
        • Florida Cancer Specialists; Saint Petersburg
    • Georgia
      • Marietta, Georgia, Stati Uniti, 30060
        • Northwest Georgia Oncology Centers PC - Marietta
    • Idaho
      • Coeur d'Alene, Idaho, Stati Uniti, 83814
        • Kootenai Medical Center
    • Illinois
      • Chicago, Illinois, Stati Uniti, 60611
        • Northwestern University; Robert H. Lurie Comp Can Ctr
      • Peoria, Illinois, Stati Uniti, 61615-7828
        • Onc Hem Assoc of Central IL
    • Iowa
      • Ames, Iowa, Stati Uniti, 50010
        • McFarland Clinic
    • Kentucky
      • Louisville, Kentucky, Stati Uniti, 40245
        • Jewish Cancer Care
    • Massachusetts
      • Worcester, Massachusetts, Stati Uniti, 01655
        • University of Massachusetts Medical School
    • Michigan
      • Ann Arbor, Michigan, Stati Uniti, 48109-0934
        • University of Michigan
    • Montana
      • Missoula, Montana, Stati Uniti, 59802
        • MT Cancer Inst Fndtn; MT Can Spec
    • Nevada
      • Las Vegas, Nevada, Stati Uniti, 89128
        • Comprehensive Cancer Centers of Nevada
    • New Jersey
      • Basking Ridge, New Jersey, Stati Uniti, 07920
        • MSKCC at Basking Ridge
      • Hackensack, New Jersey, Stati Uniti, 07601
        • Hackensack University Medical Center
    • New Mexico
      • Farmington, New Mexico, Stati Uniti, 87401
        • San Juan Oncology Associates
    • New York
      • Commack, New York, Stati Uniti, 11725
        • Memorial Sloan-Kettering; Cancer Center
      • New York, New York, Stati Uniti, 10065
        • Memorial Sloan Kettering Cancer Center
      • Rockville Centre, New York, Stati Uniti, 11570
        • MSKCC at Mercy Med Ctr
      • Sleepy Hollow, New York, Stati Uniti, 10591
        • MSKCC at Sleepy Hollow
    • North Carolina
      • High Point, North Carolina, Stati Uniti, 27262
        • Emerywood Hematology and Onc
    • Oregon
      • Springfield, Oregon, Stati Uniti, 97477
        • Willamette Valley Cancer Insitute and Research Center
    • South Carolina
      • Charleston, South Carolina, Stati Uniti, 29425
        • Medical University of SC (MUSC)
    • Tennessee
      • Nashville, Tennessee, Stati Uniti, 37203
        • SCRI-Tennessee Oncology
    • Texas
      • Fort Worth, Texas, Stati Uniti, 76177
        • Onc & Hem Assoc; USO Cent Pharm
      • Houston, Texas, Stati Uniti, 77030
        • Methodist Hospital Research Institute
      • Houston, Texas, Stati Uniti, 77030
        • MD Anderson Cancer Center Department of Lymphoma & Myeloma
      • San Antonio, Texas, Stati Uniti, 78229
        • Cancer Therapy & Research Center
      • Tyler, Texas, Stati Uniti, 75702
        • USO - Tyler Cancer Ctr
    • Virginia
      • Roanoke, Virginia, Stati Uniti, 24014
        • Blue Ridge Cancer Care - Roanoke
    • Washington
      • Spokane, Washington, Stati Uniti, 99208
        • Medical Oncology Associates
      • Vancouver, Washington, Stati Uniti, 98684
        • Northwest Cancer Specialists - Vancouver
      • Yakima, Washington, Stati Uniti, 98902
        • Yakima Valley Memorial Hospital/North Star Lodge
    • Wisconsin
      • Green Bay, Wisconsin, Stati Uniti, 54311
        • Aurora Bay Care Medical Center

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

18 anni e precedenti (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

Inclusion Criteria:

  • Adult patients, ≥18 years of age
  • Previously untreated cluster of differentiation antigen 20 (CD20)-positive diffuse large B-cell lymphoma
  • Ann Arbour Stage III/IV and bulky II (mass >10 cm)
  • At least one bi-dimensionally measurable lesion defined as >1.5 cm in its largest dimension by CT scan
  • Eastern Cooperative Oncology Group (ECOG) performance status 0, 1 or 2
  • Left ventricular ejection fraction ≥50%
  • Adequate hematologic function

Exclusion Criteria:

  • Transformed lymphoma (follicular IIIB) if previously treated with chemotherapy or immunotherapy
  • Prior therapy for diffuse large B-cell lymphoma except for nodal biopsy or local irradiation
  • Central nervous system (CNS) lymphoma, primary mediastinal large cell lymphoma, primary cutaneous lymphoma, primary effusion lymphoma
  • Patients who received cytotoxic drugs or rituximab as part of their treatment for another condition (e.g. rheumatoid arthritis) or prior use of an anti-CD20 antibody
  • Chemotherapy or other investigational therapy within 28 days prior to the start of Cycle 1
  • Contraindication to any of the individual components of CHOP, including prior receipt of anthracyclines
  • History of severe allergic or anaphylactic reactions to monoclonal antibody therapy
  • History of other malignancy, except for curatively treated basal or squamous cell carcinoma or melanoma of the skin or in situ carcinoma of the cervix, or malignancy treated with or without curative intent and in remission without treatment for ≥2 years prior to enrolment
  • Positive for hepatitis B, hepatitis C, human immunodeficiency virus (HIV) or human T-cell leukemia virus (HTLV-1) infection
  • Pregnant or lactating women

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: Trattamento
  • Assegnazione: N / A
  • Modello interventistico: Assegnazione di gruppo singolo
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: obinutuzumab + CHOP

Participants received 1000 mg obinutuzumab intravenously on Day 1 of each 21-day cycle for 8 cycles; during Cycle 1 administration also on Days 8 and 15. Participants also received standard CHOP therapy (cyclophosphamide, doxorubicin, vincristine and prednisone) for 6 cycles.

1000 mg intravenously on Day 1 of each 21-day cycle, 8 cycles; during Cycle 1 administration also on Days 8 and 15.

750 mg/m^2 intravenous (IV), Day 1 of each 21-day cycle, 6 cycles.

50 mg/m^2 IV, Day 1 of each 21-cycle, 6 cycles.

100 mg/day, Days 1 through 5 of each 21-day cycle, 6 cycles.

1.4 mg/m^2 IV, Day 1 of each 21-day cycle, 6 cycles.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Complete Response (CR) Rate as Assessed by the Investigator at the End of Treatment
Lasso di tempo: From the first dose of study treatment to end of treatment response assessment (approximately 228 to 258 days)

Complete response rate is defined as the percentage of participants with Complete Response (CR) according to the Revised Response Criteria for Malignant Lymphoma (Cheson et al., 2007). Disease response was evaluated by the investigator using regular clinical and laboratory examinations, fluorodeoxyglucose-positron emission tomography (FDG-PET) and computed tomography (CT). CR is the disappearance of all evidence of disease.

From the first dose of study treatment to end of treatment response assessment (approximately 228 to 258 days)
Overall Response Rate (ORR) as Assessed by the Investigator at the End of Treatment
Lasso di tempo: From the first dose of study treatment to end of treatment response assessment (approximately 228 to 258 days)

Overall response rate was defined as the percentage of participants with Complete Response (CR) or Partial Response (PR) according to the Revised Response Criteria for Malignant Lymphoma (Cheson et al., 2007). Disease response was evaluated by the investigator using regular clinical and laboratory examinations, FDG-PET and computed tomography (CT). CR is the disappearance of all evidence of disease. PR is at least 50% regression of measurable disease compared to tumors measured by a baseline scan and no new sites.

From the first dose of study treatment to end of treatment response assessment (approximately 228 to 258 days)

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Complete Response (CR) Rate as Assessed by the Independent Review Facility (IRF) at the End of Treatment
Lasso di tempo: From the first dose of study treatment to end of treatment response assessment (approximately 228 to 258 days)

Complete response rate is defined as the percentage of participants with Complete Response (CR) according to the Revised Response Criteria for Malignant Lymphoma (Cheson et al., 2007). Disease response was evaluated by the IRF using CT scans, PET scans and pertinent clinical information. CR is the disappearance of all evidence of disease.

From the first dose of study treatment to end of treatment response assessment (approximately 228 to 258 days)
Overall Response Rate (ORR) as Assessed by the IRF at the End of Treatment
Lasso di tempo: From the first dose of study treatment to end of treatment response assessment (approximately 228 to 258 days)

Overall response rate was defined as the percentage of participants with Complete Response (CR) or Partial Response (PR) according to the Revised Response Criteria for Malignant Lymphoma (Cheson et al., 2007). Disease response was evaluated by the IRF using CT scans, PET scans and pertinent clinical information. CR is the disappearance of all evidence of disease. PR is at least 50% regression of measurable disease compared to tumors measured by a baseline scan and no new sites.

From the first dose of study treatment to end of treatment response assessment (approximately 228 to 258 days)
Progression-Free Survival (PFS) as Assessed by the Investigator
Lasso di tempo: From the first dose of study treatment to PFS assessment (up to 64 months)

PFS was defined as the time from the date of the first dose of study treatment until the date of disease progression, relapse, or death from any cause.

From the first dose of study treatment to PFS assessment (up to 64 months)
Duration of Response (DOR)
Lasso di tempo: From the response assessment to relapse, progression, or death (up to 64 months)

DOR is defined as first occurrence of documented response (CR or PR) until the first occurrence of relapse or progression or death of any cause. CR: disappearance of all evidence of disease. PR: at least 50% regression of measurable disease compared to tumors measured by a baseline scan and no new sites.

From the response assessment to relapse, progression, or death (up to 64 months)
Percentage of Participants With Adverse Events as a Measure of Safety
Lasso di tempo: From the first dose of study treatment to end of study (up to 5 years 4 months)

An adverse event was considered any unfavorable and unintended sign, symptom, or disease associated with the use of the study drug, whether or not considered related to the study drug or other protocol-imposed intervention. Preexisting conditions that worsened during the study were reported as adverse events.

From the first dose of study treatment to end of study (up to 5 years 4 months)
Number of Participants With Grade 3 to 4 Infusion-Related (IRR) Adverse Events (AE) in Participants Receiving Shorter Duration Infusion (SDI)
Lasso di tempo: From the first dose of study treatment to end of treatment response assessment (approximately 228 to 258 days)

SDI 120 is a shorter duration infusion of 120 minutes and SDI 90 is shorter duration infusion of 90 minutes. Grade 3 IRR AE: Prolonged (e.g., not rapidly responsive to symptomatic medication and/or brief interruption of infusion); recurrence of symptoms following initial improvement; hospitalization indicated for clinical sequelae. Grade 4 IRR AE: Life-threatening consequences; urgent intervention indicated.

From the first dose of study treatment to end of treatment response assessment (approximately 228 to 258 days)
Pharmacokinetics (PK): Maximum Concentration Observed (Cmax) for Obinutuzumab
Lasso di tempo: Cycle 1 Day 1 pre and post dose, Days 3,5, Day 8 pre and post-dose, Day 15 pre-dose. Cycle 8 Day 1 pre and post-dose, Days 5,8,12

Blood was collected for PK Parameters. Serum samples were sent to a central lab and were analyzed for obinutuzumab using a validated enzyme-linked immunosorbent assay (ELISA) measured in micrograms per milliliter (μg/mL).

Cycle 1 Day 1 pre and post dose, Days 3,5, Day 8 pre and post-dose, Day 15 pre-dose. Cycle 8 Day 1 pre and post-dose, Days 5,8,12
Pharmacokinetics: Terminal Half-Life (t1/2) for Obinutuzumab
Lasso di tempo: Cycle 1 Day 1 pre and post dose, Days 3,5, Day 8 pre and post-dose, Day 15 pre-dose. Cycle 8 Day 1 pre and post-dose, Days 5,8,12

T1/2 is the time required for the concentration of the drug to reach half of its original value. Blood was collected for PK Parameters. Serum samples were sent to a central lab and were analyzed for obinutuzumab using a validated enzyme-linked immunosorbent assay (ELISA) measured in days

Cycle 1 Day 1 pre and post dose, Days 3,5, Day 8 pre and post-dose, Day 15 pre-dose. Cycle 8 Day 1 pre and post-dose, Days 5,8,12
Pharmacokinetics: Clearance (Cl) for Obinutuzumab
Lasso di tempo: Cycle 1 Day 1 pre and post dose, Days 3,5, Day 8 pre and post-dose, Day 15 pre-dose. Cycle 8 Day 1 pre and post-dose, Days 5,8,12

Cl is the volume of serum cleared of the drug per unit of time. Serum samples were sent to a central lab and were analyzed for obinutuzumab using a validated enzyme-linked immunosorbent assay (ELISA) measured in milliliters/day (mL/day).

Cycle 1 Day 1 pre and post dose, Days 3,5, Day 8 pre and post-dose, Day 15 pre-dose. Cycle 8 Day 1 pre and post-dose, Days 5,8,12
Pharmacokinetics: Volume of Distribution (V) for Obinutuzumab
Lasso di tempo: Cycle 1 Day 1 pre and post dose, Days 3,5, Day 8 pre and post-dose, Day 15 pre-dose. Cycle 8 Day 1 pre and post-dose, Days 5,8,12

V is the apparent volume in which a drug is distributed in the body. Serum samples were sent to a central lab and were analyzed for obinutuzumab using a validated enzyme-linked immunosorbent assay (ELISA) measured in milliliters (mL).

Cycle 1 Day 1 pre and post dose, Days 3,5, Day 8 pre and post-dose, Day 15 pre-dose. Cycle 8 Day 1 pre and post-dose, Days 5,8,12
Pharmacokinetics: Area Under the Concentration-Time Curve 7 Day (AUC7day)
Lasso di tempo: Cycle 1 Day 1 pre and post dose, Days 3,5, Day 8 pre and post-dose, Day 15 pre-dose. Cycle 8 Day 1 pre and post-dose, Days 5,8,12

Blood was collected for PK parameters. Serum samples were sent to a central lab and were analyzed for obinutuzumab using a validated enzyme-linked immunosorbent assay (ELISA) measured in in day times micrograms per milliliter (day*μg/mL).

Cycle 1 Day 1 pre and post dose, Days 3,5, Day 8 pre and post-dose, Day 15 pre-dose. Cycle 8 Day 1 pre and post-dose, Days 5,8,12
Pharmacodynamics: Number of Participants With Peripheral Blood B-cell Depletion
Lasso di tempo: From end of study treatment up to approximately 30 months

B-cell depletion was defined as a CD19 result < 0.07 × 10^9/L after at least one dose of study drug had been administered. Participants were evaluated during a 30-month post-treatment follow-up period following the completion of active study treatment (Cycle 8 [each cycle = 21 days]). Total study duration across active treatment and follow-up was up to approximately 5 years.

From end of study treatment up to approximately 30 months
Pharmacodynamics: Number of Participants With Peripheral Blood B-cell Recovery
Lasso di tempo: Up to approximately 30 months

B-cell recovery was defined as a CD19 result >= 0.07 × 10^9/L, where CD19 was previously depleted. B-cell recovery was only considered possible following the last dose of study treatment. The number of participants with B-cell recovery from End of Treatment to 6 months of Follow-up is reported in two categories: Recovery with Progressive Disease (PD) [PD before B-cell recovery or PD within 45 days after recovery] or Recovery without PD. PD required one of the following: 50% increase in the absolute number of circulating lymphocytes, Appearance of new palpable lymph nodes, 50% increase in the longest diameter of any previous site of lymphadenopathy, 50% increase in the enlargement of the liver and/or spleen or Transformation to a more aggressive histology.

Up to approximately 30 months

Collaboratori e investigatori

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

Sponsor

Investigatori

  • Direttore dello studio: Clinical Trials, Genentech, Inc.

Pubblicazioni e link utili

La persona responsabile dell'inserimento delle informazioni sullo studio fornisce volontariamente queste pubblicazioni. Questi possono riguardare qualsiasi cosa relativa allo studio.

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 (Effettivo)

31 agosto 2011

Completamento primario (Effettivo)

31 dicembre 2013

Completamento dello studio (Effettivo)

23 dicembre 2016

Date di iscrizione allo studio

Primo inviato

10 agosto 2011

Primo inviato che soddisfa i criteri di controllo qualità

10 agosto 2011

Primo Inserito (Stimato)

11 agosto 2011

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

29 settembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

24 settembre 2026

Ultimo verificato

1 settembre 2026

Maggiori informazioni

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 .