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OncoMatch/Clinical Trials/NCT07221500

A Study of NX-5948 in Adults With CLL/SLL Previously Treated With a Bruton's Tyrosine Kinase Inhibitor and a B-cell Lymphoma-2 Inhibitor (DAYBreak CLL-201)

Is NCT07221500 recruiting? Yes, currently enrolling (Sep 2026). This Phase 2 trial studies NX-5948 for chronic lymphocytic leukemia (cll).

Phase 2RecruitingNurix Therapeutics, Inc.NCT07221500Data as of Sep 2026Location: International · 5 countries

Treatment: NX-5948This is a study for patients with relapsed/refractory (R/R) chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) who have previously received treatment with a BTK inhibitor (covalent and non-covalent) and a BCL-2 inhibitor. The main purpose of this study is to test if NX-5948 (bexobrutideg) works to treat patients with CLL/SLL. Participation could last up to 5 years, and possibly longer, if the disease does not progress.

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Extracted eligibility criteria

Treatments studied

Other

NX-5948

Cancer type

Chronic Lymphocytic Leukemia

Performance status

ECOG 0–2(Ambulatory, capable of self-care)

Prior therapy

Min 3 prior lines

Must have received: covalent BTK inhibitor

Must have received a covalent BTK inhibitor (BTKi)

Must have received: non-covalent BTK inhibitor

Must have received a non-covalent BTK inhibitor (BTKi)

Must have received: BCL-2 inhibitor

Must have received a BCL-2 inhibitor

Cannot have received: BTK degrader

Previously treated with a BTK degrader

Cannot have received: systemic anticancer therapy

Exception: continuation of hormonal therapy for breast and prostate cancer is allowed, if not on the list of prohibited concomitant medications

No other systemic anticancer therapy is allowed at the same time as this study; exception: continuation of hormonal therapy for breast and prostate cancer is allowed, if they are not on the list of prohibited concomitant medications in this study

Lab requirements

Blood counts

Adequate organ and bone marrow function

Kidney function

Adequate organ and bone marrow function

Liver function

Adequate organ and bone marrow function

Adequate organ and bone marrow function

Structured fields extracted by AI. May contain errors — verify against the official protocol.

US trial sites

  • City of Hope · Duarte, California
  • Colorado Blood Institute · Denver, Colorado
  • University of Miami · Coral Gables, Florida
  • Florida Cancer Specialists · Sarasota, Florida
  • Fort Wayne Oncology and Hematology · Fort Wayne, Indiana

Showing up to 5 US sites.

See all sites on ClinicalTrials.gov →

Frequently asked questions

Is NCT07221500 currently recruiting?

Yes, this trial is currently recruiting patients.

Are there prior therapy exclusions?

Yes. Prior BTK degrader, systemic anticancer therapy disqualifies patients from enrollment.

Could you qualify for this trial?

Enter your biomarker results to see how this trial's eligibility criteria match your specific cancer profile.

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