AZD0486 as Monotherapy in B-cell Acute Lymphoblastic Leukaemia

PHASE1PHASE2RECRUITING

This is a Phase 1/2, global multicentre, open-label, single-arm, dose escalation and dose optimisation study of AZD0486 to evaluate the safety, tolerability, and efficacy of AZD0486 monotherapy in participants with R/R B ALL who have received ≥ 2 prior lines of therapies. The study will consist of 3 parts. Part A monotherapy dose escalation.

Part B dose optimisation. Part C Dose expansion at the recommended phase 2 dose (RP2D).

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Study details:

This dose escalation and optimization study is evaluating the safety, tolerability, PK, PD and clinical activity of AZD0486 monotherapy in r/r B-ALL.

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Eligibility criteria

Researchers look for people who fit a certain description, called eligibility criteria. See if you qualify.

Inclusion criteria

  • Age: 16 years and older (Part A), 12 years and older (Parts B and C).
  • Participants with B-cell Acute Lymphoblastic Leukemia with CD19 expression by local lab with:
  • Bone marrow infiltration with ">=/= 5% blasts
  • Either relapsed or refractory after a minimum of 2 prior therapies or after 1 prior line of therapy if no SOC available option.
  • Philadelphia positive participants are allowed in Part A if intolerant or refractory to TKIs.
  • For participants older than 16 years, Eastern Cooperative Oncology Group (ECOG) Performance Status less than or equal to 2.
  • For Participants 16 years or younger, Lansky score more or equal to 50%.
  • The above is a summary, other inclusion criteria details may apply.
  • Exclusion criteria

  • Active CNS involvement by B-ALL, defined by presence of ALL blasts in CSF (CNS2 and CNS3 criteria).
  • Isolated extramedullary disease relapse.
  • Testicular leukemia.
  • History or presence of clinically relevant CNS pathology such as epilepsy, seizure, paresis, aphasia, stroke, severe brain injuries, dementia, Parkinson's disease, cerebellar disease, organic brain syndrome, or psychosis; or prior Grade 4 neurotoxicity with CAR-T or TCE therapy.
  • History of other malignancy (with certain exceptions).
  • Unresolved AEs ">=/= Grade 2, from prior therapies.
  • Prior therapy with TCEs within 4 weeks, CAR T-cell therapy or autologous HSCT within 8 weeks or prior alloSCT within 12 weeks of start of therapy.
  • GVHD requiring immunosuppressive therapy within 3 weeks prior to AZD0486 treatment.
  • The above is a summary, other exclusion criteria details may apply.
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    Eligibility

    Age eligible for study : 12 and older

    Healthy volunteers accepted : No

    Gender eligible for study: All

    Things to know

    Study dates

    Study start: 2023-12-29

    Primary completion: 2026-01-29

    Study completion finish: 2027-02-04

    study type

    Study type

    TREATMENT

    phase

    Phase

      PHASE1

      PHASE2

    trial

    Trial ID

    NCT06137118

    Intervention or treatment

    DRUG: AZD0486

    Conditions

    • B-cell Acute Lymphoblastic Leukemia (B-ALL)

    Find a site

    Closest Location:

    Research Site

    Research sites nearby

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    • Research Site

      Melbourne, Not Specified, Australia

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    Study Plan

    This section provides details of the study plan, including how the study is designed and what the study is measuring.

    How is the study designed?

    Participant Group/ArmIntervention/Treatment
    EXPERIMENTAL: Part A: AZD0486 Dose Escalation
    • Ascending dose level cohorts of AZD0486 in B-ALL participants aged 16-80 years.
    DRUG: AZD0486
    • Investigational Product administered via intravenous infusion.
    EXPERIMENTAL: Part B: Dose Optimization
    • Up to 2 cohorts will be evaluated prior declared safe-doses and schedules in order to determine the recommended phase 2 dose (RP2D). Participants, aged 12-80 years, will receive AZD0486 IV infusions and will be randomized in a 1:1 ratio.
    DRUG: AZD0486
    • Investigational Product administered via intravenous infusion.
    EXPERIMENTAL: Part C: Dose Expansion
    • Part C will consist of 1 cohort of participants aged 12-80 years, treated with the optimal dose selected in Part B and receive IV AZD0486 monotherapy.
    DRUG: AZD0486
    • Investigational Product administered via intravenous infusion.

    What is the study measuring?

    Primary outcome

    Primary Outcome MeasurePrimary Outcome DescriptionPrimary Outcome Time Frame
    Part A: Frequency of DLTsDLTs are dose-limiting toxicities as defined in the study protocol28 days
    Parts A & B: Safety Evaluation of AZD0486Frequency, severity, and relationship to study drug of AEs and SAEs; dose modifications; changes in laboratory evaluations; QTc, and vital signs changes.From signing of informed consent through completion of study treatment, an average of 8 months
    Parts B & C: Overall Response Rate (ORR)The Primary analysis for ORR be conducted in RP2D-treated participants (in Part B and C).From First dose to end of treatment or data cutoff, whichever comes first, assessed up to 24 months

    Secondary outcome

    Secondary Outcome MeasureSecondary Outcome DescriptionSecondary Outcome Time Frame
    Part A: Objective Response Rate (ORR)Overall response rate (ORR) is defined as proportion of participants who achieve overall response (CR/CRi).From First dose to end of treatment or data cutoff, whichever comes first, assessed up to 12 months
    Parts A, B, C: Duration of response (DoR)Date of first documented CR/CRi until the date of relapse or deathUp to 36 months
    Parts A, B, C: CR rate at any time during the studyCR rate as defined as the percentage of participants achieving CR at any time by NCCN criteriaFrom first dose until end of study, up to 36 months
    Parts A, B, C: Event-free survival (EFS)Event-free survival is defined as the time from the date of the first dose until the date of a relapse after achieving a CR/ CRi, or death due to any cause.From first dose until end of study, up to 36 months
    Parts A, B, C: Overall survival (OS)OS measured from first dose of study drug until deathFrom first dose until end of study, up to 36 months
    Parts B & C: Subsequent alloSCTNumber of patients who after achieve CR/CR underwent an alloSCTFrom first dose until end of study, up to 24 months
    Parts B &C: CR MRD-negative rateNumber of patients who achieve CR MRD-negative by NGS at any time on studyFirst dose until end of study, up to 24 months
    Parts A, B, & C: PK characterization of AZD0486Derived PK parameter: AUCFrom first dose until end of study, up to 36 months
    Parts A, B & C: PK Characterization of AZD0486Derived PK parameter: CmaxFrom first dose until end of study, up to 36 months
    Parts A, B, C: PK Characterization of AZD0486Derived PK Parameter: tmaxFrom first dose until end of study, up to 36 months
    Parts A, B, C: PK Characterization of AZD0486Derived PK parameter: CtroughFrom first dose until end of study, up to 36 months
    Parts A, B, C: PK Characterization of AZD0486Derived PK Parameter: t1/2Pre-defined intervals from day 1 to day 28
    Parts A, B, C: PK Characterization of AZD0486Derived PK Parameter: CL of AZD0486From first dose until end of study, up to 36 months
    Parts A, B, C: ADA characterization of AZD0486Summary of pre-existing and treatment-induced ADAs for AZD0486 (positive or negative, titres)Consent until 36 months after first dose
    Part C: Safety Evaluation of AZD0486Frequency, severity, and relationship to study drug of AEs and SAEs; dose modifications; changes in laboratory evaluations; QTc, and vital signs changes.From signing of informed consent through completion of study treatment, an average of 8 months

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    References

    Clinical Trials Gov: AZD0486 as Monotherapy in B-cell Acute Lymphoblastic Leukaemia

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