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A Study of Voruciclib Alone or in Combination With Venetoclax in Subjects With B-Cell Malignancies or AML

Phase 1, Open-label, Study of Voruciclib in Subjects With Relapsed and/or Refractory B Cell Malignancies or AML After Failure of Prior Standard Therapies and Voruciclib in Combination With Venetoclax in Subjects With Relapsed/Refractory AML

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03547115
Enrollment
84
Registered
2018-06-06
Start date
2018-05-31
Completion date
2024-07-24
Last updated
2026-03-17

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

Conditions

Acute Myeloid Leukemia (AML), Chronic Lymphocytic Leukemia (CLL), Diffuse Large B-cell Lymphoma (DLBCL), Follicular Lymphoma (FL), Mantle Cell Lymphoma (MCL), Marginal Zone Lymphoma (MZL), Small Lymphocytic Lymphoma (SLL)

Keywords

B-Cell Malignancies, AML, voruciclib, venetoclax

Brief summary

This is a Phase 1, open-label, dose escalation study to determine the safety and preliminary efficacy of voruciclib monotherapy in subjects with relapsed/refractory B cell malignancies or AML after failure of standard therapies or voruciclib in combination with venetoclax in subjects with relapsed or refractory AML

Detailed description

This is a Phase 1, open-label, 3 + 3 dose escalation and expansion study to determine the safety and preliminary efficacy of voruciclib monotherapy in subjects with relapsed/refractory B cell malignancies or AML after failure of prior standard therapies or voruciclib in combination with venetoclax in subjects with relapsed or refractory AML. Escalation to the next higher dose level will depend on demonstrated safety and tolerability at each dose level.

Interventions

DRUGvoruciclib monotherapy

Voruciclib will be administered orally

DRUGvoruciclib and venetoclax

Voruciclib and Venetoclax will be administered orally

Sponsors

MEI Pharma, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

This is a Phase 1, open-label, 3 + 3 dose escalation study to determine the safety and preliminary efficacy of voruciclib alone or in combination with venetoclax.

Eligibility

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

Inclusion criteria

* Age ≥18 years * Histologically-confirmed diagnosis of Follicular lymphoma (FL), mantle cell lymphoma (MCL), marginal zone lymphoma (MZL), small lymphocytic lymphoma (SLL), chronic lymphocytic leukemia(CLL), diffuse large B-cell lymphoma (DLBCL), or AML a. Subjects must have disease that has relapsed or is refractory to 2 or more prior regimens and in need of treatment due to progressive disease * Presence of measurable disease defined per the 2008 International workshop on CLL guidelines, or by 2014 Lugano criteria for non-Hodgkin lymphoma (does not apply for AML subjects) * Adequate hematologic parameters unless clearly due to the disease under study * Adequate renal and hepatic function, per laboratory reference range at screening

Exclusion criteria

* History of pneumonitis of any cause * For CLL subjects: only known histological transformation to an aggressive lymphoma * For AML subjects: 1. Acute promyelocytic leukemia 2. Peripheral blast count \> 25 × 10 9/L * Known central nervous system involvement * Significant cardiovascular disease * Significant screening ECG abnormalities * Subjects who require warfarin, anti-cancer therapeutics or investigational agents * Evidence of an ongoing systemic bacterial, fungal, or viral infection (including upper respiratory tract infections) at the time of start of voruciclib therapy * Prior solid organ transplantation * Receipt of an allogeneic transplant within 6 months or an autologous transplant within the preceding 3 months; evidence of ongoing graft-versus-host disease (GVHD) * Prior therapy with a cyclin-dependent kinase (CDK9) inhibitor * Symptomatic/uncontrolled HIV infection/AIDS, or currently taking contraindicated medications for HIV control * Ongoing immunosuppressive treatment including calcineurin inhibitors at the time of the start of study treatment, including systemic or enteric corticosteroids except as follows: 1. Prior to the start of study treatment, subjects may be using systemic corticosteroids (≤20 mg/day of prednisone or equivalent), topical, or inhaled corticosteroids 2. During study therapy, subjects may use systemic, topical, or enteric corticosteroids, if needed

Design outcomes

Primary

MeasureTime frameDescription
Determine the safety and tolerability of voruciclib2 yearsSafety will be measured by the incidence of all AEs and SAEs, timing, grade \[CTCAE v4.03\] severity, seriousness, relatedness. Tolerability will be measured by the incidence of DLTs (dose limiting toxicities)
Determine the safety and tolerability of voruciclib in combination with venetoclax in subjects with AML.2 yearsSafety will be measured by the incidence of all AEs and SAEs, timing, grade \[CTCAE v4.03\] severity, seriousness, relatedness. Tolerability will be measured by the incidence of DLTs (dose limiting toxicities)

Secondary

MeasureTime frameDescription
Overall Response Rate (ORR)2 yearsdefined as the sum of complete response (CR), complete remission with incomplete marrow recovery (CRi) and partial response (PR) for B-cell malignancies, or for AML the sum of CR/CRi rate by the 2017 European LeukemiaNet (ELN) criteria
Duration of Response (DOR)2 yearsdefined as the time from the initial determination of response to the time of disease progression or death on study, which ever occurs first
Progression Free Survival (PFS)2 yearsdefined as the time from the first dose of study drug administration (Cycle 1 Day 1) to disease recurrence or progression as defined by IWG criteria, or death on study
Evaluate the PK of voruciclib2 yearsDetermined by the Area Under the Concentration time curve (AUC)
Evaluate the PK of voruciclib Cmax in combination with venetoclax Determined by the Area Under the Concentration time curve (AUC)2 yearsDetermined by the Area Under the Concentration time curve (AUC)

Countries

United States

Contacts

STUDY_DIRECTORRichard Ghalie, MD

MEI Pharma

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 18, 2026