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Acalabrutinib (ACP-196) in Combination With ACP-319, for Treatment of B-Cell Malignancies

A Phase 1/2 Proof-of-Concept Study of the Combination of ACP-196 and ACP-319 in Subjects With B-cell Malignancies

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02328014
Enrollment
40
Registered
2014-12-31
Start date
2014-12-20
Completion date
2025-10-30
Last updated
2025-12-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

B-All, Multiple Myeloma, Non-Hodgkins Lymphoma

Keywords

Bruton tyrosine kinase inhibitor, Btk, B-Cell Malignancies, Mantle Cell, Multiple Myeloma, CLL, SLL, DLBCL, Follicular, Waldenstrom, B-All

Brief summary

This study is evaluating the safety, pharmacokinetics (PK), pharmacodynamics (PD), and efficacy acalabrutinib and ACP 319 in B-cell malignancies.

Detailed description

Part 1, Dose Escalation, is comprised of 3 dosing cohorts of 6 subjects each. Acalabrutinib dosing is fixed in all cohorts at 100 mg PO twice daily (BID). In addition to acalabrutinib, subjects in Cohort 1 will receive ACP-319, 25 mg BID; Cohort 2 will receive ACP-319, 50 mg BID: and Cohort 3 will receive ACP-319 100 mg BID. The maximum tolerated dose (MTD) of the study treatment combination will be determined by assessing dose-related toxicities (DLTs) for each cohort at the end of Cycle 1 prior to dose escalation. If there are greater than or equal to 2 DLTs in a cohort, dose escalation will not occur and the MTD will be the highest daily dose for which less than 33% of the subjects in that cohort experienced DLTs in Cycle 1. Part 2, Dose Expansion, includes 12 subjects per histology, dosing at the MTD for the combination of acalabrutinib and ACP-319 established in Part 1. Subjects will continue dosing until disease progression or unacceptable drug-related toxicity.

Interventions

DRUGAcalabrutinib

Oral

Oral

Sponsors

AstraZeneca
CollaboratorINDUSTRY
Acerta Pharma BV
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Main Inclusion Criteria: * Diagnosis of a b-cell malignancy as documented by medical records and with histology based on criteria established by the World Health Organization (WHO). * Eastern Cooperative Oncology Group (ECOG) performance status of ≤ 2. * Agreement to use contraception during the study and for 90 days after the last dose of study drugs if sexually active and able to bear or beget children.

Exclusion criteria

* A life-threatening illness, medical condition or organ system dysfunction which, in the investigator's opinion, could compromise the subject's safety, interfere with the absorption or metabolism of study drugs, or put the study outcomes at undue risk. * Central nervous system (CNS) involvement by lymphoma/leukemia * Any therapeutic antibody within 4 weeks of first dose of study drugs. * The time from the last dose of the most recent chemotherapy or experimental therapy to the first dose of study drugs is \< 5 times the half-life of the previously administered agent(s). * ANC \< 0.5 x 10\^9/L or platelet count \< 50 x 10\^9/L unless due to disease involvement in the bone marrow. * Creatinine \> 1.5 x institutional upper limit of normal (ULN); total bilirubin \> 1.5 x ULN (unless due to Gilbert's disease); and aspartate aminotransferase (AST) or alanine aminotransferase (ALT) \> 3.0 x ULN.

Design outcomes

Primary

MeasureTime frameDescription
Best Response and Overall Response Ratefrom the start of the treatment to the last evaluable disease assessment, an average of 1 yearBest response and overall response rate per the criteria investigator uses for each disease histology. Standardized response and progression criteria is based on established criteria for B-cell malignancies, including WM (Cheson 2014; Owen 2013; Hallek 2008; Bladé 1998; and Durie 2006).

Countries

United States

Participant flow

Pre-assignment details

All data collection and Final analysis for the study has been completed. However, as we face a unique challenge in oncology studies, some patients benefiting from the medication, continue to receive treatment beyond final analysis with NO requirement for any further data collection or additional data analysis.

Participants by arm

ArmCount
Part 1 Cohort 1
Part 1 Cohort 1: ACP-196 100 mg BID + ACP-319 25 mg BID continuously
6
Part 1 Cohort 2
Part 1 Cohort 2: ACP-196 100 mg BID + ACP-319 50 mg BID continuously
6
Part 1 Cohort 3
Part 1 Cohort 3: ACP-196 100 mg BID + ACP-319 100 mg BID continuously
6
Part 2
Part 2: ACP-196 100 mg BID + ACP-319 50 mg BID continuously
22
Total40

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyAdverse Event1001
Overall StudyDeath0004
Overall StudyDisease Progression1013
Overall StudyPhysician Decision0001
Overall StudyStudy Terminated by Sponsor4110
Overall StudySubject Started Another Cancer Therapy05412
Overall StudyWithdrawal by Subject0001

Baseline characteristics

CharacteristicTotalPart 2Part 1 Cohort 3Part 1 Cohort 1Part 1 Cohort 2
Age, Continuous68.3 Years
STANDARD_DEVIATION 9.2
68.3 Years
STANDARD_DEVIATION 9.2
62.5 Years
STANDARD_DEVIATION 7.9
61.2 Years
STANDARD_DEVIATION 7.3
68.0 Years
STANDARD_DEVIATION 9.9
Race/Ethnicity, Customized
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Asian
1 Participants1 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Black or African American
0 Participants0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Hispanic or Latino
0 Participants0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
39 Participants22 Participants6 Participants6 Participants5 Participants
Race/Ethnicity, Customized
Not Reported
5 Participants3 Participants1 Participants0 Participants1 Participants
Race/Ethnicity, Customized
White
34 Participants18 Participants5 Participants6 Participants5 Participants
Region of Enrollment
United States
40 Participants22 Participants6 Participants6 Participants6 Participants
Sex: Female, Male
Female
16 Participants9 Participants3 Participants3 Participants1 Participants
Sex: Female, Male
Male
24 Participants13 Participants3 Participants3 Participants5 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 60 / 60 / 64 / 22
other
Total, other adverse events
6 / 66 / 66 / 622 / 22
serious
Total, serious adverse events
3 / 63 / 65 / 611 / 22

Outcome results

Primary

Best Response and Overall Response Rate

Best response and overall response rate per the criteria investigator uses for each disease histology. Standardized response and progression criteria is based on established criteria for B-cell malignancies, including WM (Cheson 2014; Owen 2013; Hallek 2008; Bladé 1998; and Durie 2006).

Time frame: from the start of the treatment to the last evaluable disease assessment, an average of 1 year

Population: All-Treated Population

ArmMeasureGroupValue (NUMBER)
Part 1 Cohort 1Best Response and Overall Response RateCR33.3 percentage of participants
Part 1 Cohort 1Best Response and Overall Response RateMissing0 percentage of participants
Part 1 Cohort 1Best Response and Overall Response RateORR (CR+VGPR+PR)83.3 percentage of participants
Part 1 Cohort 1Best Response and Overall Response RateVGPR16.7 percentage of participants
Part 1 Cohort 1Best Response and Overall Response RatePD0 percentage of participants
Part 1 Cohort 1Best Response and Overall Response RatePR33.3 percentage of participants
Part 1 Cohort 1Best Response and Overall Response RateSD16.7 percentage of participants
Part 1 Cohort 2Best Response and Overall Response RatePD33.3 percentage of participants
Part 1 Cohort 2Best Response and Overall Response RateMissing0 percentage of participants
Part 1 Cohort 2Best Response and Overall Response RatePR50 percentage of participants
Part 1 Cohort 2Best Response and Overall Response RateCR0 percentage of participants
Part 1 Cohort 2Best Response and Overall Response RateVGPR0 percentage of participants
Part 1 Cohort 2Best Response and Overall Response RateSD16.7 percentage of participants
Part 1 Cohort 2Best Response and Overall Response RateORR (CR+VGPR+PR)50 percentage of participants
Part 1 Cohort 3Best Response and Overall Response RateCR16.7 percentage of participants
Part 1 Cohort 3Best Response and Overall Response RateMissing33.3 percentage of participants
Part 1 Cohort 3Best Response and Overall Response RateORR (CR+VGPR+PR)66.7 percentage of participants
Part 1 Cohort 3Best Response and Overall Response RatePD0 percentage of participants
Part 1 Cohort 3Best Response and Overall Response RatePR50 percentage of participants
Part 1 Cohort 3Best Response and Overall Response RateSD0 percentage of participants
Part 1 Cohort 3Best Response and Overall Response RateVGPR0 percentage of participants
Part 2Best Response and Overall Response RateORR (CR+VGPR+PR)40.9 percentage of participants
Part 2Best Response and Overall Response RatePR22.7 percentage of participants
Part 2Best Response and Overall Response RateMissing0 percentage of participants
Part 2Best Response and Overall Response RateCR18.2 percentage of participants
Part 2Best Response and Overall Response RateVGPR0 percentage of participants
Part 2Best Response and Overall Response RateSD4.5 percentage of participants
Part 2Best Response and Overall Response RatePD36.4 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 24, 2026