Acute myeloid leukemia (AML) is the second most common type of leukemia diagnosed in adults and children, but most cases occur in adults. This study is to evaluate how safe ABBV-787 is and how it moves within the body in adult participants with relapsed/refractory (R/R) acute myeloid leukemia (AML). Adverse events and maximum tolerated dose (MTD) of ABBV-787 will be assessed. ABBV-787 is an investigational drug being developed for the treatment of AML. Participants will receive ABBV-787 in escalating doses until the maximum tolerated dose (MTD) is determined. Approximately 60 adult participants with a diagnosis of AML will be enrolled worldwide. Participants will receive intravenous (IV) infusions of ABBV-787 during the approximately 3 year duration a participant is followed. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests and checking for side effects.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
36
Intravenous (IV) Infusion
City of Hope /ID# 253727
Duarte, California, United States
University of California Davis Health /ID# 252723
Sacramento, California, United States
Yale University School of Medicine /ID# 252724
New Haven, Connecticut, United States
Northwestern Memorial Hospital /ID# 252800
Chicago, Illinois, United States
University of Chicago Medical /ID# 252764
Chicago, Illinois, United States
University of Maryland, Baltimore /ID# 253726
Baltimore, Maryland, United States
Cancer & Hematology Centers /ID# 252803
Grand Rapids, Michigan, United States
Memorial Sloan Kettering Cancer Center-Koch Center /ID# 252515
New York, New York, United States
Weill Cornell Medical College /ID# 252516
New York, New York, United States
University of Pennsylvania /ID# 252789
Philadelphia, Pennsylvania, United States
...and 14 more locations
Number of Participants with Adverse Events (AE)
An AE is any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have a causal relationship with this treatment.
Time frame: Up to Approximately 3 Years
Maximum Tolerated Dose (MTD) Based on Dose-Limiting Toxicities (DLT)
DLT events are defined as clinically significant adverse events or abnormal laboratory values assessed as unrelated to disease progression, underlying disease, intercurrent illness, or concomitant medications.
Time frame: Up to approximately 28 Days
Area Under the Plasma Concentration-time Curve (AUC) of ABBV-787
AUC of ABBV-787.
Time frame: Up to Approximately 1 Year
Maximum Observed Concentration (Cmax) of ABBV-787
Cmax of ABBV-787.
Time frame: Up to Approximately 1 Year
Time to Cmax (Tmax) of ABBV-787
Tmax of ABBV-787.
Time frame: Up to Approximately 1 Year
Half-life (t1/2) of ABBV-787
t1/2 of ABBV-787.
Time frame: Up to Approximately 1 Year
Total Antibody Concentration
Total antibody concentration
Time frame: Up to Approximately 1 Year
Plasma Concentrations of Unconjugated Bromodomain and Extra-terminal Domain (BET) Degrader Payload
Plasma concentrations of unconjugated BET degrader payload.
Time frame: Up to Approximately 1 Year
Antidrug Antibody (ADA)
Incidence and concentration of anti-drug antibodies.
Time frame: Up to Approximately 1 Year
Neutralizing Antibody (nAb)
Incidence and concentration of neutralizing antibodies.
Time frame: Up to Approximately 1 Year
Percentage of Participants Achieving Complete Remission (CR)
CR is assessed by the European Leukemia Net (ELN). ELN defines refractory disease as the inability to attain complete remission (CR) or CR with incomplete hematologic recovery (CRi) after two courses of intensive induction treatment.
Time frame: Up to Approximately 1 Year
Rate of Participants Achieving CR with partial hematologic recovery (CRh)
Percentage of participants achieving CRh per ELN 2022.
Time frame: Up to Approximately 1 Year
Rate of Participants Achieving CR with incomplete hematologic recovery (CRi)
Percentage of participants achieving CRi per ELN 2022.
Time frame: Up to Approximately 1 Year
Rate of Participants Achieving Composite CR (CR, CRh, or CRi)
Composite CR is defined as the percentage of participants with composite CR per ELN 2022.
Time frame: Up to Approximately 1 Year
Rate of Participants Achieving Partial Remission (PR)
PR is defined as the percentage of participants with PR per ELN 2022.
Time frame: Up to Approximately 1 Year
Duration of Response (DOR)
DOR is defined for participants with CR, CRh, CRi, or PR as the time from the participant's initial response of CR, CRh, CRi, or PR per investigator review according to ELN 2022 criteria to disease progression or death of any cause, whichever occurs earlier.
Time frame: Up to Approximately 1 Year
Number of Participants proceeding to hematopoietic stem cell transplant (HSCT)
Number of participants proceeding to HSCT
Time frame: Up to Approximately 3 Years
Event-free Survival (EFS)
EFS is defined as the time from the date of the first study treatment to the date of treatment failure, or hematologic relapse from either CR, CRh, or CRi, or death from any cause, whichever occurs earlier.
Time frame: Up to Approximately 3 Years
Relapse free survival (RFS)
RFS is defined for participants achieving CR, CRh, or CRi as time from the date of achievement of remission (CR, CRh, or CRi) until the date of hematologic relapse or death from any cause.
Time frame: Up to Approximately 3 Years
Overall survival (OS)
OS is defined as time from first study treatment to death from any cause.
Time frame: Up to Approximately 3 Years
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