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A Study to Evaluate Adverse Events, Change in Disease Activity, Tolerability, and How Intravenous ABBV-438 Moves Through the Body in Adult Participants With Multiple Myeloma (MM)

A Phase 1, First-in-Human, Open Label Study Evaluating Safety, Tolerability, Pharmacokinetics and Preliminary Efficacy of ABBV-438 in Adult Subjects With Relapsed or Refractory Multiple Myeloma

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07409246
Enrollment
127
Registered
2026-02-13
Start date
2026-02-27
Completion date
2031-11-01
Last updated
2026-08-14

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

Conditions

Multiple Myeloma

Keywords

Multiple Myeloma, ABBV-438, Cancer

Brief summary

Multiple myeloma (MM) is a plasma cell disease characterized by the growth of clonal plasma cells in the bone marrow. The purpose of this study is to assess the safety, tolerability, and how ABBV-438 moves through the body, in adult participants with relapsed/refractory (R/R) MM. Adverse events, tolerability, how ABBV-438 moves through the body will be assessed. ABBV-438 is an investigational drug being developed for the treatment of R/R MM. Study doctors put the participants in groups called treatment arms broken into 2 parts. ABBV-438 will be given alone and multiple doses will be explored. This study will include a dose escalation phase (Part 1) to determine the best dose of ABBV-438, followed by a dose expansion phase (Part 2) to confirm the dose. Approximately 127 adult participants with R/R MM will be enrolled in the study in approximately 24 sites worldwide. Participants will receive intravenous (IV) ABBV-438 alone first in multiple doses in the dose escalation phase (Part 1); then in 1 of 2 doses from Part 1 in the dose expansion phase (Part 2). The overall study duration will be approximately 69.5 months. 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 an approved institution (hospital or clinic). The effect of the treatment will be frequently checked by medical assessments, blood tests, questionnaires and side effects.

Interventions

DRUGABBV-438

Intravenous (IV)

Sponsors

AbbVie
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Has relapsed or refractory Multiple Myeloma (MM) with documented evidence of progression during or after the participant's last treatment regimen based on the investigator's determination of the standard International Myeloma Working Group (IMWG) (2016) response criteria: * Relapsed defined as previously treated myeloma that progresses and requires initiation of salvage therapy; * Refractory defined as disease that is nonresponsive (failure to achieve minimal response) while on last therapy, or progresses within 60 days of last therapy. * Has measurable disease at screening, defined by at least 1 of the following within 28 days prior to enrollment: * Serum M-protein \>= 0.5 g/dL (\>=5 g/L); OR; * Urine M-protein \>= 200 mg/24 hours; OR; * Involved serum free light chain (sFLC) \>= 10 mg/dL (100mg/L), provided serum FLC ratio is abnormal; * Must have had 3 or more prior lines of therapy with exposure to a proteasome inhibitor (PI), an immunomodulatory imide drugs (IMiD), and an anti-CD38 therapy and are intolerant to, or unable to access, available therapies that are known to confer clinical benefit to participants with relapsed or refractory (R/R) MM. Note: A line of therapy consists of relapsed or refractory 1 complete cycle of a single agent, a regimen consisting of a combination of several drugs, or a planned sequential therapy of various regimens.

Exclusion criteria

* Known history of Central Nervous System involvement by MM. * History of idiopathic pulmonary fibrosis, organizing pneumonia (e.g., bronchiolitis obliterans), drug-induced pneumonitis, or idiopathic pneumonitis.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Adverse Events (AE)Up to Approximately 69.5 MonthsAn 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. A serious adverse event (SAE) is defined as any untoward medical occurrence, whether associated with study drug or not, that results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, or is an important medical event requiring medical or surgical intervention to prevent serious outcome.
Number of Participants With Clinically Significant Changes From Baseline in Clinical Laboratory ParametersUp to Approximately 69.5 MonthsClinical laboratory parameters included tests of hematology and chemistry. The investigator will assess the results for clinical significance.
Number of Participants With Clinically Significant Changes From Baseline in Vital Sign ParametersUp to Approximately 69.5 MonthsVital sign parameters included body temperature, systolic and diastolic blood pressure, pulse rate, and respiratory rate. The investigator will assess the results for clinical significance.
Number of Participants With Clinically Significant Changes From Baseline in Electrocardiograms (ECG)Up to Approximately 69.5 MonthsA standard 12-lead ECG will be performed. The investigator will assess the results for clinical significance.

Secondary

MeasureTime frameDescription
Overall Response Rate (ORR)Up to Approximately 69.5 MonthsORR is defined as the percentage of participants with the achievement of partial response (PR) or very good partial response (VGPR) or complete response (CR) or stringent complete response (sCR) as assessed by investigators per IMWG 2016 criteria.
Number of Participants Achieving VGPR or BetterUp to Approximately 69.5 MonthsVGPR or better is defined as the percentage of participants with the achievement of VGPR , CR, or sCR as assessed by investigators per IMWG 2016 criteria.
Duration of Response (DOR) in Participants who Achieved PR or VGPR or CR or sCRUp to Approximately 69.5 MonthsDOR is defined as confirmed sCR, CR, VGPR, or PR as the time from the initial response of PR (or better) per investigator review according to IMWG 2016 criteria, to disease progression or death of any cause, whichever occurs earlier.
Progression-free survival (PFS)Up to Approximately 69.5 MonthsPFS defined as time from first study treatment to a documented disease progression according to IMWG 2016 criteria, as determined by the investigator, or death due to any cause, whichever occurs earlier.
Overall survival (OS)Up to Approximately 69.5 MonthsOS is defined as time from first study treatment to death due to any cause.
Area Under the Plasma Concentration-Time Curve (AUC) of ABBV-438Up to Approximately 69.5 MonthsArea under the plasma concentration-time curve of ABBV-438.
Maximum Observed Plasma Concentration (Cmax) of ABBV-438Up to Approximately 69.5 MonthsMaximum observed plasma concentration of ABBV-438.
Time to Cmax (Tmax) of ABBV-438Up to Approximately 69.5 MonthsTime to Cmax of ABBV-438.
t1/2 (Half-life) of ABBV-438Up to Approximately 69.5 MonthsHalf-life of ABBV-438.

Countries

China, Israel, Japan, United States

Contacts

CONTACTABBVIE CALL CENTER
abbvieclinicaltrials@abbvie.com844-663-3742
STUDY_DIRECTORABBVIE INC.

AbbVie

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 15, 2026