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Phase 2 N=10 Treatment

Obinutuzumab in Combination With Ibrutinib in Treating Patients With Relapsed Mantle Cell Lymphoma

Recurrent Mantle Cell Lymphoma · Refractory Mantle Cell Lymphoma

Enrolled (actual)
10
Serious AEs
40.0%
Results posted
Jan 2022
Primary outcome: Primary: Percent of Participants With Best Overall Objective Response or Complete Response/Partial Response (CR/PR) — 89 percentage of participants

Study Design & Population

Study type
Interventional
Phase
Phase 2
Interventions
Ibrutinib (Drug); Obinutuzumab (Biological)
Age
Adult, Older Adult · 18+ yrs
Sex
All
Sponsor
OHSU Knight Cancer Institute
Primary completion
Jun 2021

Outcome Measures

OutcomeResultp-value
PRIMARY
Percent of Participants With Best Overall Objective Response or Complete Response/Partial Response (CR/PR)
89
SECONDARY
Progression Free Survival (PFS)
14
SECONDARY
Number of Participants With Treatment-related Toxicities, Grade 3 or Higher, as Assessed by CTCAE v4.0
1; 1; 4; 2; 1

Summary

This phase II trial studies how well obinutuzumab works in combination with ibrutinib in treating patients with mantle cell lymphoma that has returned (relapsed) or that does not respond to treatment (refractory). Obinutuzumab binds to a protein called cluster of differentiation (CD)20, which is found on B cells and some types of leukemia and lymphoma cells and help the immune system kill cancer cells. Ibrutinib blocks a protein called Bruton's tyrosine kinase (BTK), which may help keep cancer cells from growing. Giving obinutuzumab in combination with ibrutinib may kill more cancer cells.

Eligibility Criteria

Inclusion Criteria

  • Subjects must have a diagnosis of relapsed or refractory mantle cell lymphoma as follows:
  • Diagnosis of mantle cell lymphoma (MCL) must include morphology and expression of either cyclin D1 in association with other relevant markers (eg, CD19, CD20, CD5) or evidence of t(11;14) as assessed by cytogenetics, fluorescent in situ hybridization (FISH), or polymerase chain reaction (PCR)
  • Relapsed or refractory disease is defined as no response or progressive disease to prior treatment if the prior treatment comprised any of the following:
  • 1 regimen containing an anti-CD20 antibody administered for >= 2 doses, and/or
  • >= 1 regimen containing 1 cytotoxic agent (e.g., bendamustine, chlorambucil, cyclophosphamide, cytarabine, doxorubicin) administered for 2 cycles
  • At least 1 measurable site of disease according to Revised Response Criteria for Malignant Lymphoma (Cheson Criteria); the site of disease must be greater than 1.5 cm in the long axis regardless of short axis measurement or greater than 1.0 cm in the short axis regardless of long axis measurement, and clearly measurable in 2 perpendicular dimensions
  • Eastern Cooperative Oncology Group (ECOG) performance status = = 60%)
  • Absolute neutrophil count (ANC) >= 1.0 K/cu mm; for subjects with ANC .5 K/cu mm
  • Platelets (plt) >= 50 K/cu mm; for subjects with plt 25 K/cu mm
  • Total bilirubin = = 2 years
  • Adequately treated non-melanoma skin cancer or melanoma in situ without evidence of disease
  • Adequately treated cervical carcinoma in situ without evidence of disease
  • Asymptomatic prostate cancer managed with "active surveillance"
  • Localized prostate cancer treated with definitive treatment including radiation or surgery. Patients on adjuvant hormone deprivation treatment such as lupron are eligible. Patients with known metastatic disease are ineligible
  • History of stroke or intracranial hemorrhage within 6 months prior to randomization
  • Requires anticoagulation with warfarin or equivalent vitamin K antagonists (eg, phenprocoumon)
  • Vaccinated with live, attenuated vaccines within 4 weeks of randomization
  • Requires treatment with strong cytochrome P450 3A (CYP3A) inhibitors
  • Subjects who have had standard cytotoxic chemotherapy or radiotherapy within 3 weeks prior to entering the study or those whose adverse events due to agents administered more than 3 weeks earlier have not recovered to = 14 days are ineligible; no drug intervention or cessation is required for patients already receiving ibrutinib prior to initiation of on-study therapy
  • Active graft versus (vs.) host disease (GVHD)
  • Ongoing glucocorticoids (prednisone > 10 mg daily, or equivalent); higher doses (> 10 mg daily) are permitted for up to 5 days to help control disease related symptoms
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT02736617). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.

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