Status:

RECRUITING

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)

Lead Sponsor:

Nurix Therapeutics, Inc.

Conditions:

Chronic Lymphocytic Leukemia (CLL)

Small Lymphocytic Lymphoma (SLL)

Eligibility:

All Genders

18+ years

Phase:

PHASE2

Brief Summary

This 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 and a BCL...

Detailed Description

The main purpose of this study is to test if NX-5948 works to treat patients with R/R CLL/SLL. NX-5948 is a BTK degrader and works by destroying the BTK protein to stop all its actions. This is differ...

Eligibility Criteria

Inclusion

  • Age: ≥ 18 years
  • Confirmed relapsed/refractory CLL/SLL that meets iwCLL criteria for systemic treatment
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0-2
  • Must have received both a BTK inhibitor and a BCL-2 inhibitor
  • Measurable disease by radiographic assessment
  • Adequate organ and bone marrow function
  • Must sign an informed consent form indicating that he or she understands the purpose of the procedures required for the study and is willing to participate

Exclusion

  • Known or suspected prolymphocytic leukemia or Richter's transformation to Hodgkin's lymphoma or other types of non-Hodgkin's lymphoma before entering study
  • Investigational agent or anticancer therapy within 5 half-lives or 14 days (whichever is shorter) before planned start of study drug
  • Antibody therapy must stop at least 4 weeks before the first dose of study drug
  • 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
  • Radiotherapy within 2 weeks of the first dose of study drug except for focal palliative radiation
  • Use of systemic corticosteroids \>20 mg/day prednisone or equivalent within the 7 days before start of study drug except for those used as premedication for radio diagnostic contrast
  • Use of systemic immunosuppressive drugs other than systemic corticosteroids within 60 days before the first dose of study drug
  • Previously treated with a BTK degrader
  • Previous chimeric antigen receptor (CAR) T-cell therapy
  • Thromboembolic events (eg, deep vein thrombosis, pulmonary embolism, or symptomatic cerebrovascular events), stroke, or intracranial hemorrhage within 6 months of planned start of study drug
  • Note: Other Inclusion/Exclusion criteria may apply as defined in the protocol.

Key Trial Info

Start Date :

October 15 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

October 1 2030

Estimated Enrollment :

100 Patients enrolled

Trial Details

Trial ID

NCT07221500

Start Date

October 15 2025

End Date

October 1 2030

Last Update

December 17 2025

Active Locations (6)

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Page 1 of 2 (6 locations)

1

CHU de Nantes

Nantes, France, 44000

2

Pratia Hematologia Sp. z o.o.

Katowice, Poland, 40-519

3

Pratia S.A.

Krakow, Poland, 30-225

4

Aidport Sp. z o.o.

Skorzewo, Poland, 60-185