Study of CTO1681 for Preventing and Treating Cytokine Release Syndrome in DLBCL Patients Receiving CAR T-Cell Therapy

This study is looking at a drug called CTO1681 to see if it can prevent or reduce a side effect called Cytokine Release Syndrome (CRS) in people with Diffuse Large B-cell Lymphoma (DLBCL). CRS is a common side effect of CAR T-cell therapy. If you are an adult (18 years or older) with DLBCL and are scheduled to receive specific CAR T-cell therapies (axicabtagene ciloleucel or lisocabtagene maraleucel), you might be able to join. The study will test different doses of CTO1681, which you would take three times a day for 15 days, starting just before your CAR T-cell therapy. The main goal is to see how safe CTO1681 is by tracking any side effects over 6 months.

Study design
This is an open-label study where participants will receive increasing doses of CTO1681. It plans to enroll 54 participants.
What's involved
You would take CTO1681 three times daily for 15 days. You will also provide blood and urine samples, have ECGs, scans, and other medical evaluations.
Compensation
Not stated in the trial record.
Follow-up
Participants will be monitored for safety and effectiveness for 43 days, with follow-up for safety and tumor response for up to 6 months.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT05905328

Study of CTO1681 for the Prevention and Treatment of CRS in Patients Receiving CAR T-Cell Therapy

Recruiting
PHASE1Ages 18+InterventionalTreatment
CytoAgents, Inc.
~54 participants
Updated 2026-08-31 on ClinicalTrials.gov
What's tested:CTO1681 10 µgCTO1681 20 μgCTO1681 30 μgCTO1681 10 µg Run-in / 20 µg TreatmentCTO1681 20 µg Run-in / 30 µg Treatment

At a glance

Recruiting sites
6 of 6 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Incidence of adverse events (AEs)
Measured over 6 months following start of treatment
Cytokine Release Syndrome

NCT05905328

Where you'd take part

This study runs at 6 sites. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.

  • Beth Israel Deaconess Medical Center

    Boston, Massachusettsstudy coordinator listed

    Recruiting

  • Duke Cancer Institute

    Durham, North Carolinastudy coordinator listed

    Recruiting

  • Fred Hutchinson Cancer Center

    Seattle, Washingtonstudy coordinator listed

    Recruiting

  • Georgia Cancer Center at Augusta University

    Augusta, Georgiastudy coordinator listed

    Recruiting

  • University of California, Irvine - Chao Family Comprehensive Cancer Center

    Orange, Californiastudy coordinator listed

    Recruiting

  • University of Pittsburgh Medical Center

    Pittsburgh, Pennsylvaniastudy coordinator listed

    Recruiting

Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.

  • Mike Howell, PhD · STUDY_CHAIR · CytoAgents, Inc.

Opens a ready-to-send draft in your own email app — review before sending.

  • Incidence of adverse events (AEs)6 months following start of treatment

    AEs graded by CTCAE v5.0