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AS-1763 in Patients with Previously Treated CLL/SLL or Non-Hodgkin Lymphoma

C

Carna Biosciences

Status and phase

Enrolling
Phase 1

Conditions

Waldenstrom Macroglobulinemia
Marginal Zone Lymphoma
Follicular Lymphoma
Mantle Cell Lymphoma
Small Lymphocytic Lymphoma
Chronic Lymphocytic Leukemia
B-cell Malignancy
Non-Hodgkin Lymphoma

Treatments

Drug: AS-1763

Study type

Interventional

Funder types

Industry

Identifiers

NCT05602363
C1763102

Details and patient eligibility

About

This is an open-label, multi-center Phase 1b clinical study of oral AS-1763 in patients with CLL/SLL or B-cell NHL who have failed or are intolerant to ≥2 lines of systemic therapy.

Full description

This study consists of 2 parts.

Dose escalation part will enroll up to 27 patients to evaluate safety profile and tolerance of AS-1763 using 3+3 design. The starting dose of AS-1763 in oral tablet form is 100 mg twice daily (200 mg/day). Dose escalation will continue up to the planned maximum dose level or until the maximum tolerated dose (MTD) has been identified.

Dose expansion part will enroll up to 48 CLL/SLL patients (Cohort 1), up to 35 NHL patients (Cohort 2), and up to 10 patients with prior pirtobrutinib treatment for an approved indication (Cohort 3). The first 30 patients in each Cohort 1 or 2 will be allocated to three dose levels (n=10 at each dose level) which will be selected based on the data from dose escalation. Preliminary efficacy and safety data from the first 30 patients in one of cohorts will be used to identify the provisional recommended Phase 2 dose (RP2D) level. Thereafter, up to a further 18 patients for Cohort 1 and up to a further 5 patients for Cohort 2 will be enrolled and allocated to the provisional RP2D level. Cohort 3 will be enrolled in parallel with Cohorts 1 and 2 and will be allocated to up to two dose levels (either n=10 at a single dose level or n=5 at each of 2 dose levels).

Study assessments will continue for 24 cycles (1 cycle = 28 days) or until disease progression, occurrence of unacceptable toxicity, or discontinuation because of other reasons. Patients will then be followed for survival status for a further 2 years.

RP2D will be determined based on all the data generated in the study.

Enrollment

120 estimated patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Age ≥18 years
  • Provided written informed consent
  • Histologically confirmed B-cell malignancy, including CLL/SLL, WM, MCL, MZL, or FL.
  • Patients with SLL, MCL, MZL, and FL: at least 1 radiographically measurable lesion
  • Failed or are intolerant to ≥2 prior lines of systemic therapy
  • ECOG Performance Status 0 to 2
  • Adequate hematologic status (ie, absolute neutrophil count ≥0.75 × 10⁹/L, platelet count ≥50 × 10⁹/L, hemoglobin ≥8 g/dL) not requiring transfusion support or growth factors
  • Adequate hepatic function
  • Adequate renal function
  • Ability to swallow tablets and comply with study requirements for the duration of study participation.
  • Male and female patients of reproductive potential: Willing to observe conventional and effective birth control methods
  • Male patients: agree not to donate sperm during and for 6 months after the study
  • Dose Expansion Cohort 3 patients: prior treatment with pirtobrutinib (Jaypirca) for an approved indication

Exclusion criteria

  • Transformed disease (eg, Richter's transformation) prior to or during Screening
  • Investigational agent or anticancer therapy within 5 half-lives before the planned start of AS-1763, except therapeutic monoclonal antibody treatment which must be discontinued at least 4 weeks before the start of AS-1763.
  • Current treatment with investigational therapy or planned investigational therapy which would be concurrent with this study.
  • Requiring therapeutic anticoagulation with warfarin.
  • Current treatment with certain strong CYP3A4 inhibitors or inducers
  • Treatment with proton pump inhibitors within 7 days before first dose of AS-1763
  • Current treatment with strong P-glycoprotein inhibitors or strong BCRP inhibitors.
  • Refractory to transfusion support.
  • Major surgery within 4 weeks before planned start of AS-1763.
  • Radiotherapy with a limited field of radiation for palliation within 7 days of the first dose of study treatment
  • Any unresolved toxicities from prior therapy greater than NCI CTCAE Version 5.0 Grade 2 at the time of starting study treatment except for alopecia.
  • History of allogeneic or autologous stem cell transplant or CAR-T therapy within the last 30 days.
  • Active second malignancy unless in remission with life expectancy >2 years
  • Known central nervous system (CNS) involvement by systemic lymphoma.
  • Active uncontrolled autoimmune cytopenia (eg, autoimmune hemolytic anemia, idiopathic thrombocytopenic purpura) where new therapy introduced or concomitant therapy escalated within the 4 weeks before study enrollment is required to maintain adequate blood counts.
  • Clinically significant, uncontrolled cardiac, cardiovascular disease or history of myocardial infarction within 6 months before planned start of AS-1763, or prolongation of the QT interval corrected for heart rate using Fridericia's Formula (QTcF) >470 msec on at least 2 of 3 consecutive ECGs, and mean QTcF >470 msec on all 3 ECGs, during Screening.
  • Active uncontrolled systemic bacterial, viral, fungal, or parasitic infection
  • Positive for HIV. For patients with unknown HIV status, HIV testing will be performed at Screening.
  • Clinically significant active malabsorption syndrome or other condition likely to affect gastrointestinal absorption of AS-1763
  • Pregnant or lactating.
  • Known hypersensitivity to any component or excipient of AS-1763.
  • Prior treatment with AS-1763
  • Dose Escalation and Cohort 3 patients: prior treatment with noncovalent BTKi except pirtobrutinib (Jaypirca)
  • Dose Expansion Cohort 1 and Cohort 2 patients: prior treatment with any noncovalent BTKi

Trial design

Primary purpose

Treatment

Allocation

Non-Randomized

Interventional model

Sequential Assignment

Masking

None (Open label)

120 participants in 2 patient groups

Dose Escalation
Experimental group
Description:
Dose escalation (3+3 design) and determination of MTD and DLTs CLL/SLL or B-cell NHL patients will self-administer AS-1763 oral tablet at multiple dose levels twice daily for 24 cycles (1 cycle = 28 days).
Treatment:
Drug: AS-1763
Dose Expansion
Experimental group
Description:
Cohort 1: CLL/SLL patients, Cohort 2: B-cell NHL patients, Cohort 3: CLL/SLL or B-cell NHL patients with prior treatment with pirtobrutinib (Jaypirca) for an approved indication Patients will self-administer AS-1763 oral tablet for 24 cycles (1 cycle = 28 days). Dose levels will be determined based on the result of dose escalation part.
Treatment:
Drug: AS-1763

Trial contacts and locations

10

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Central trial contact

Akinori Arimura, PhD

Data sourced from clinicaltrials.gov

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