Clinical trialNCT03401853TerminatedPhase 2Interventional

Pembrolizumab With Rituximab or Obinutuzumab in Treating Patients With Relapsed or Refractory Follicular Lymphoma or Diffuse Large B Cell Lymphoma

SponsorUniversity of WashingtonEnrollment18Recurrent Diffuse Large B-Cell LymphomaRecurrent Follicular LymphomaRefractory Diffuse Large B-Cell LymphomaRefractory Follicular Lymphoma

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

This phase II trial studies how well pembrolizumab with rituximab or obinutuzumab work in treating patients with follicular lymphoma or diffuse large B cell lymphoma that has come back (recurrent) or does not respond to treatment (refractory). Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Rituximab and obinutuzumab are monoclonal antibodies. They bind to a protein called CD20, which is found on B cells (a type of white blood cell) and some types of cancer cells. This may help the immune system kill cancer cells. Giving pembrolizumab with rituximab or obinutuzumab may help kill more cancer cells in patients with follicular lymphoma or diffuse large B cell lymphoma.

clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a FindMyKOL profile link to it; the rest are shown as registered.

Stephen D. Smith
Fred Hutch/University of Washington Cancer Consortium
Principal Investigator
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

1 registered facility, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States

Fred Hutch/university of Washington Cancer Consortium
Seattle, Washington, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

Obinutuzumab →Pembrolizumab →Rituximab →

Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 23 Mar 2018
Primary completion: 19 Dec 2023
Completion: 19 Sept 2024
Last update posted: 22 Jul 2025
Registered enrollment: 18
Registry id: NCT03401853

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; FindMyKOL does not interpret them.