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A Phase 3 Study of Ibrutinib (PCI-32765) Versus Ofatumumab in Patients With Relapsed or Refractory Chronic Lymphocytic Leukemia

Phase 3
Completed
Conditions
Relapsed or Refractory Chronic Lymphocytic Leukemia
Small Lymphocytic Lymphoma
Interventions
Registration Number
NCT01578707
Lead Sponsor
Pharmacyclics LLC.
Brief Summary

The purpose of the study is to evaluate whether treatment with ibrutinib as a monotherapy results in a clinically significant improvement in progression free survival (PFS) as compared to treatment with ofatumumab in patients with relapsed or refractory Chronic Lymphocytic Leukemia (CLL) or Small Lymphocytic Lymphoma (SLL)

Detailed Description

Study PCYC-1112-CA is a randomized, multicenter, open-label, phase 3 study of the Bruton's Tyrosine Kinase (BTK) inhibitor Ibrutinib (PCI-32765) versus Ofatumumab in patients with Relapsed or Refractory Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma.

Patients randomized to the ofatumumab arm may be considered to receive next subsequent therapy with ibrutinib.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
391
Inclusion Criteria
  • ECOG performance status of 0-1.
  • Diagnosis of CLL or SLL that meets IWCLL 2008 criteria.
  • Active disease meeting at least 1 of the IWCLL 2008 criteria for requiring treatment.
  • Must have received at least one prior therapy for CLL/SLL.
  • Considered not appropriate for treatment or retreatment with purine analog based therapy.
  • Measurable nodal disease by CT.
  • Patients must be able to receive outpatient treatment and laboratory monitoring at the institution that administers study drug for the entire study.
Exclusion Criteria
  • Known CNS lymphoma or leukemia.
  • No documentation of cytogenetic and/or FISH in patient records prior to first dose of study drug.
  • Any history of Richter's transformation or prolymphocytic leukemia.
  • Uncontrolled Autoimmune Hemolytic Anemia (AIHA) or idiopathic thrombocytopenia purpura (ITP).
  • Prior exposure to ofatumumab or to ibrutinib.
  • Prior autologous transplant within 6 months prior to first dose of study drug.
  • Prior allogeneic stem cell transplant within 6 months or with any evidence of active graft versus host disease or requirement for immunosuppressants within 28 days prior to first dose of study drug.
  • History of prior malignancy, with the exception of certain skin cancers and malignancies treated with curative intent and with no evidence of active disease for more than 3 years.
  • Serologic status reflecting active hepatitis B or C infection.
  • Unable to swallow capsules or disease significantly affecting gastrointestinal function.
  • Uncontrolled active systemic fungal, bacterial, viral, or other infection.
  • History of stroke or intracranial hemorrhage within 6 months prior to the first dose of study drug.
  • Requires anticoagulation with warfarin.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Ofatumumab (Arm A)ofatumumabAn anti-CD20 monoclonal antibody
ibrutinib (Arm B)ibrutinibA Bruton Tyrosine Kinase Inhibitor
Primary Outcome Measures
NameTimeMethod
PFS (Progression Free Survival) by Independent Review Committee (IRC), Limited to the Time of Primary Analysis 06 November 2013Analysis was conducted after observing approximately 117 PFS events, which occurred about 18 months after the first subject was enrolled.

The primary objective of this study was to evaluate the efficacy of ibrutinib compared to ofatumumab based on independent review committee (IRC) assessment of progression-free survival (PFS) according to 2008 IWCLL guidelines.

Secondary Outcome Measures
NameTimeMethod
Overall Response Rate (ORR) by Independent Review Committee (IRC)About 18 months after the first subject was enrolled

Overall Response Rate per the IWCLL 2008 criteria as assessed by IRC, limited to the time of primary analysis 06 November 2013

OS (Overall Survival)OS analysis was conducted at the time of study closure, including up to 6 years of study follow-up

OS analysis was conducted at the time of study closure, with no adjustment for crossover from the ofatumumab arm to the ibrutinib arm

Rate of Sustained Hemoglobin and Platelet ImprovementFrom study initiation to study closure, including up to 6 years of study follow-up

Proportion of subjects with hemoglobin (HgB) increase \>=20 g/L and platelet (PLT) increase \>=50% over baseline continuously for \>=56 days without blood transfusions or growth factors.

Trial Locations

Locations (76)

Site # 059

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New Brunswick, New Jersey, United States

Site # 501

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Fitzroy, Victoria, Australia

Site #408

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La Jolla, California, United States

Site # 509

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Graz, Austria

Site #411

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Norwalk, Connecticut, United States

Site # 515

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Bordeaux, France

Site # 510

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Marseille, France

Site #107

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Marietta, Georgia, United States

Site # 540

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Madrid, Spain

Site # 531

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Lodz, Poland

Site # 504

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Salzburg, Austria

Site # 507

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Wels, Austria

Site # 506

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Wein, Austria

Site # 552

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Liverpool, United Kingdom

Site # 127

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Rochester, New York, United States

Site #377

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Los Angeles, California, United States

Site #038

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Stanford, California, United States

Site #403

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Santa Maria, California, United States

Site # 379

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Evansville, Indiana, United States

Site # 390

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Boston, Massachusetts, United States

Site # 391

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Boston, Massachusetts, United States

Site # 349

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Boston, Massachusetts, United States

Site # 130

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Detroit, Michigan, United States

Site # 406

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Rochester, Minnesota, United States

Site # 350

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New Hyde Park, New York, United States

Site # 200

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New York, New York, United States

Site # 197

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Cincinnati, Ohio, United States

Site # 217

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Columbus, Ohio, United States

Site # 402

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Philadelphia, Pennsylvania, United States

Site # 410

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Nashville, Tennessee, United States

Site # 032

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Houston, Texas, United States

Site # 396

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Greenville, South Carolina, United States

Site # 381

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Laredo, Texas, United States

Site # 210

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Charlottesville, Virginia, United States

Site # 500

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St. Leonards, New South Wales, Australia

Site # 404

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Seattle, Washington, United States

Site # 503

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Brisbane, Queensland, Australia

Site # 502

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Nedlands, Western Australia, Australia

Site # 199

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East Melbourne, Victoria, Australia

Site # 393

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Antwerpen, Belgium

Site # 505

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Vienna, Austria

Site # 508

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Linz, Austria

Site # 519

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Argenteuil, France

Site # 511

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Bobigny, France

Site # 513

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Clermont Ferrand, France

Site # 516

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Caen, France

Site # 096

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Galway, Ireland

Site # 570

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Dublin, Ireland

Site # 520

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Nantes, France

Site # 528

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Dublin, Ireland

Site # 517

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Vandœuvre-lès-Nancy, France

Site # 518

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Rennes, France

Site # 522

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Milano, Italy

Site # 523

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Milano, Italy

Site # 526

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Milano, Italy

Site # 524

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Modena, Italy

Site # 529

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Gdansk, Poland

Site # 527

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Padova, Italy

Site # 535

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Barcelona, Spain

Site # 539

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Coruna, Spain

Site # 534

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Barcelona, Spain

Site # 533

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Barcelona, Spain

Site # 537

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Madrid, Spain

Site # 538

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Pamplona, Spain

Site # 536

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Madrid, Spain

Site # 549

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Colchester, Essex, United Kingdom

Site # 543

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Sutton, Surrey, United Kingdom

Site # 553

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Canterbury, United Kingdom

Site # 551

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Bournemouth, United Kingdom

Site # 546

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Cardiff, United Kingdom

Site # 554

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Headington, United Kingdom

Site # 550

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Leeds, United Kingdom

Site # 548

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Nottingham, United Kingdom

Site # 544

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London, United Kingdom

Site # 545

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Southampton, United Kingdom

Site # 541

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Withington, United Kingdom

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