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CompletedNCT04049825Updated Apr 8, 2026

A Phase 1 Trial of OPB-111077 in Combination With Bendamustine and Rituximab in Patients With r/r DLBCL

A Phase 1 interventional study of OPB-111077 and OPB-111077 in Relapsed or Refractory Diffuse Large B-cell Lymphoma, sponsored by Otsuka Pharmaceutical Co., Ltd.. Completed at 1 site in Japan. Open to participants aged 20 Years to 80 Years. Per ClinicalTrials.gov, last updated 2026-04-08.

Sponsored by Otsuka Pharmaceutical Co., Ltd. · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
36
Allocation
Non-randomized
Ages
20 Years to 80 Years
Sex
All
01

Study summary

To investigate the tolerability and safety of OPB-111077 in combination with bendamustine and rituximab in patients with r/r DLBCL.

02

Conditions studied

  • Relapsed or Refractory Diffuse Large B-cell Lymphoma
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In context

Recurrence

4,279 studies on the registry are indexed under Recurrence; 988 are open to participants now.

This study's enrollment of 36 is below the median of 50 across 3,374 interventional studies indexed under Recurrence.

Browse Recurrence studies →

Lead sponsor

Otsuka Pharmaceutical Co., Ltd. is the lead sponsor of 140 studies on the registry; 11 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
20 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Patients with a definite diagnosis of Diffuse large B-cell lymphoma(DLBCL)
  • Patients who have received at least initial standard treatment
  • Patients with measurable lesions (based on International Working Group [IWG] 2014 criteria)
  • Patients with an Eastern Cooperative Oncology Group (ECOG) performance status (PS) score of 0 or 1

\<Only for dose-expansion stage>

  • Patients who are pathologically diagnosed as CD20 positive lymphoma
  • Patients who have a history of being treated with 1 to 5 regimens of previous chemotherapy for the underlying disease

Exclusion criteria

Exclusion Criteria:

  • Patients who are candidates for autologous or allogeneic hematopoietic stem cell transplantation
  • Patients who were refractory to initial standard treatment
  • Patients who have a history of bendamustine administration and are intolerant to bendamustine
  • Patients with central nervous system (CNS) involvement of lymphoma or with a history of CNS involvement of lymphoma
  • Patients diagnosed with DLBCL transformed from low-grade B-cell non-Hodgkin's lymphoma (NHL)

\<Only for dose-expansion stage>

- Patients who have a history of rituximab administration and are intolerant to rituximab

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Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
36 participants (actual)

Study arms

  • Experimental
    Dose Escalation Stage

    The dose of OPB-111077 in the first cohort will be 200 mg/day, increasing as appropriate to 400 mg/day in the second cohort and then to 600 mg/day in the third cohort.

    Drug: OPB-111077

  • Experimental
    Dose Expansion Stage

    4 days on and 3days off of 21-day cycles of OPB-111077 Day 1 of 21-days cycles of rituximab Day 2 and 3 of 21-day cycles of bendamustine

    Drug: OPB-111077

Interventions

  • DrugOPB-111077

    OPB-111077+bendamustine

  • DrugOPB-111077

    OPB-111077+rituximab+bendamustine

06

What researchers measure

Primary outcomes

  1. Dose-limiting toxicity (DLT)

    The tolerability of OPB-111077 in combination with bendamustine and rituximab

    Time frame: 23days

  2. Incidence of Adverse events(AEs)

    Safety of OPB-111077 in combination with bendamustine and rituximab

    Time frame: Up to 3 years

Secondary outcomes

  1. Efficacy based on International working group(IWG) Lugano response criteria for Non Hodgkin's lymphoma ( (NHL) (2014))

    * Percentage of Participants with Complete Response based on International working group(IWG) Lugano response criteria for Non Hodgkin's lymphoma ( (NHL) (2014)) * Percentage of Participants with Complete Response and Partial Response based on International working group(IWG) Lugano response criteria for Non Hodgkin's lymphoma ( (NHL) (2014))

    Time frame: Last dose of study drug (up to 3 years)

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Study locations

1 site
  • Yamagata University Hospital
    Yamagata, Japan
08

References and documents

Individual participant data

Plan to share: No — The focus of this study is a rare disease.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 8, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04049825
Lead sponsor
Otsuka Pharmaceutical Co., Ltd.
Responsible party
Sponsor
First posted
Aug 8, 2019
Start date
Nov 22, 2019
Primary completion
Mar 25, 2025
Completion
Jan 19, 2026
Last update
Apr 8, 2026

Study contacts

Nobuhito Sanada
study director · Otsuka Pharmaceutical Co., Ltd.

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2026. You cannot join it, but the record below documents what was studied.

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