New combo aims to unmask cancer cells in Tough-to-Treat lymphoma

NCT ID NCT05507541

First seen Apr 28, 2026 · Last updated Apr 29, 2026 · Updated 1 time

Summary

This study is for adults with diffuse large B-cell lymphoma that has returned or stopped responding to standard treatments. The trial combines two drugs: one that helps the immune system see cancer cells (TTI-622) and another that boosts the immune attack (pembrolizumab). The goal is to find the safest dose and see if the combination can shrink or eliminate tumors. About 10 people will take part in this early-phase study.

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Contacts and locations

Locations

  • Mayo Clinic

    Rochester, Minnesota, 55905, United States

  • University of Iowa

    Iowa City, Iowa, 52242, United States

Conditions

Explore the condition pages connected to this study.

RECURRENT ALK POSITIVE LARGE B-CELL LYMPHOMA RECURRENT B-CELL NON-HODGKIN LYMPHOMA RECURRENT DIFFUSE LARGE B-CELL LYMPHOMA ASSOCIATED WITH CHRONIC INFLAMMATION RECURRENT DIFFUSE LARGE B-CELL LYMPHOMA, NOT OTHERWISE SPECIFIED RECURRENT EBV-POSITIVE DIFFUSE LARGE B-CELL LYMPHOMA, NOT OTHERWISE SPECIFIED RECURRENT GRADE 3B FOLLICULAR LYMPHOMA RECURRENT GRAY-ZONE LYMPHOMA RECURRENT HIGH GRADE B-CELL LYMPHOMA RECURRENT HIGH GRADE B-CELL LYMPHOMA WITH MYC AND BCL2 OR BCL6 REARRANGEMENTS RECURRENT HIGH GRADE B-CELL LYMPHOMA WITH MYC, BCL2, AND BCL6 REARRANGEMENTS RECURRENT HIGH GRADE B-CELL LYMPHOMA, NOT OTHERWISE SPECIFIED RECURRENT INTRAVASCULAR LARGE B-CELL LYMPHOMA RECURRENT PRIMARY CUTANEOUS DIFFUSE LARGE B-CELL LYMPHOMA, LEG TYPE RECURRENT PRIMARY MEDIASTINAL (THYMIC) LARGE B-CELL LYMPHOMA RECURRENT T-CELL/HISTIOCYTE-RICH LARGE B-CELL LYMPHOMA REFRACTORY ALK POSITIVE LARGE B-CELL LYMPHOMA REFRACTORY DIFFUSE LARGE B-CELL LYMPHOMA ASSOCIATED WITH CHRONIC INFLAMMATION REFRACTORY DIFFUSE LARGE B-CELL LYMPHOMA, NOT OTHERWISE SPECIFIED REFRACTORY EBV-POSITIVE DIFFUSE LARGE B-CELL LYMPHOMA, NOT OTHERWISE SPECIFIED REFRACTORY GRADE 3B FOLLICULAR LYMPHOMA REFRACTORY HIGH GRADE B-CELL LYMPHOMA REFRACTORY HIGH GRADE B-CELL LYMPHOMA WITH MYC AND BCL2 OR BCL6 REARRANGEMENTS REFRACTORY HIGH GRADE B-CELL LYMPHOMA WITH MYC, BCL2, AND BCL6 REARRANGEMENTS REFRACTORY HIGH GRADE B-CELL LYMPHOMA, NOT OTHERWISE SPECIFIED REFRACTORY INTRAVASCULAR LARGE B-CELL LYMPHOMA REFRACTORY PRIMARY CUTANEOUS DIFFUSE LARGE B-CELL LYMPHOMA, LEG TYPE REFRACTORY PRIMARY MEDIASTINAL LARGE B-CELL LYMPHOMA REFRACTORY T-CELL/HISTIOCYTE-RICH LARGE B-CELL LYMPHOMA