NCT05602363

Brief Summary

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

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
120

participants targeted

Target at P75+ for phase_1

Timeline
16mo left

Started Aug 2023

Longer than P75 for phase_1

Geographic Reach
1 country

13 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress68%
Aug 2023Sep 2027

First Submitted

Initial submission to the registry

October 24, 2022

Completed
9 days until next milestone

First Posted

Study publicly available on registry

November 2, 2022

Completed
9 months until next milestone

Study Start

First participant enrolled

August 1, 2023

Completed
4.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2027

Last Updated

December 10, 2025

Status Verified

July 1, 2025

Enrollment Period

4.1 years

First QC Date

October 24, 2022

Last Update Submit

December 9, 2025

Conditions

Outcome Measures

Primary Outcomes (2)

  • Number of patients with dose limiting toxicities (DLTs) and determination of maximum tolerated dose (MTD)

    Dose escalation

    Up to 24 cycles (1 cycle = 28 days)

  • Overall response rate (ORR) as assessed by investigator

    Dose expansion

    Up to 24 cycles (1 cycle = 28 days)

Secondary Outcomes (9)

  • Number of patients with adverse events (AEs) and clinical laboratory abnormalities

    Up to 24 cycles (1 cycle = 28 days)

  • Area under the plasma concentration versus time curve (AUC) of docirbrutinib

    Up to 24 cycles (1 cycle = 28 days)

  • Peak Plasma Concentration (Cmax) of docirbrutinib

    Up to 24 cycles (1 cycle = 28 days)

  • Time to maximum plasma concentration (tmax) of docirbrutinib

    Up to 24 cycles (1 cycle = 28 days)

  • ORR as assessed by investigator

    Up to 24 cycles (1 cycle = 28 days)

  • +4 more secondary outcomes

Other Outcomes (1)

  • Proportion of patients with BTK and PLCG2 gene mutation before and after disease progression

    Up to 24 cycles (1 cycle = 28 days)

Study Arms (2)

Dose Escalation

EXPERIMENTAL

Dose escalation (3+3 design) and determination of MTD and DLTs CLL/SLL or B-cell NHL patients will self-administer docirbrutinib oral tablet at multiple dose levels twice daily for 24 cycles (1 cycle = 28 days).

Drug: Docirbrutinib

Dose Expansion

EXPERIMENTAL

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 docirbrutinib oral tablet for 24 cycles (1 cycle = 28 days). Dose levels will be determined based on the result of dose escalation part.

Drug: Docirbrutinib

Interventions

oral tablet, twice daily

Also known as: AS-1763
Dose EscalationDose Expansion

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • 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

You may not qualify if:

  • 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 docirbrutinib, except therapeutic monoclonal antibody treatment which must be discontinued at least 4 weeks before the start of docirbrutinib
  • 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 docirbrutinib
  • Current treatment with strong P-glycoprotein inhibitors or strong BCRP inhibitors
  • Refractory to transfusion support
  • Major surgery within 4 weeks before planned start of docirbrutinib
  • 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
  • +9 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (13)

UC Irvine Health

Orange, California, 92868, United States

RECRUITING

Mount Sinai Comprehensive Cancer Center

Miami Beach, Florida, 33140, United States

RECRUITING

Moffitt Cancer Center

Tampa, Florida, 33612, United States

RECRUITING

Northwestern Memorial Hospital

Chicago, Illinois, 60661, United States

RECRUITING

American Oncology Partners

Fort Wayne, Indiana, 46804, United States

RECRUITING

University of Maryland Medical Center - Greenebaum Comprehensive Cancer Center

Baltimore, Maryland, 21201, United States

RECRUITING

University of Massachusetts Memorial Medical Center

Worcester, Massachusetts, 01655, United States

RECRUITING

Optum Medical Care PC

Westbury, New York, 11590, United States

RECRUITING

Duke University

Durham, North Carolina, 27705, United States

RECRUITING

Taylor Cancer Research Center

Maumee, Ohio, 43537, United States

RECRUITING

Oncology Consultants

Houston, Texas, 77030, United States

RECRUITING

University of Texas MD Anderson Cancer Center

Houston, Texas, 77030, United States

RECRUITING

The Medical College of Wisconsin

Milwaukee, Wisconsin, 53266, United States

RECRUITING

MeSH Terms

Conditions

Leukemia, Lymphocytic, Chronic, B-CellWaldenstrom MacroglobulinemiaLymphoma, Mantle-CellLymphoma, B-Cell, Marginal ZoneLymphoma, FollicularLymphoma, Non-Hodgkin

Condition Hierarchy (Ancestors)

Leukemia, B-CellLeukemia, LymphoidLeukemiaNeoplasms by Histologic TypeNeoplasmsHematologic DiseasesHemic and Lymphatic DiseasesLymphoproliferative DisordersLymphatic DiseasesImmunoproliferative DisordersImmune System DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and SymptomsNeoplasms, Plasma CellHemostatic DisordersVascular DiseasesCardiovascular DiseasesParaproteinemiasBlood Protein DisordersHemorrhagic DisordersLymphomaLymphoma, B-Cell

Central Study Contacts

Akinori Arimura, PhD

CONTACT

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
SEQUENTIAL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 24, 2022

First Posted

November 2, 2022

Study Start

August 1, 2023

Primary Completion (Estimated)

September 1, 2027

Study Completion (Estimated)

September 1, 2027

Last Updated

December 10, 2025

Record last verified: 2025-07

Data Sharing

IPD Sharing
Will not share

Locations