Selvigaltin With Standard of Care Treatment for the Treatment of Relapsed/Refractory Multiple Myeloma

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

PHASE1

Total Enrollment

21 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-02-01

Study Completion Date

2028-02-01

Brief Summary

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This phase I trial studies the side effects and best dose of selvigaltin when given together with standard of care treatment (daratumumab-hyaluronidase, carfilzomib, dexamethasone) in treating patients with multiple myeloma that has come back after a period of improvement (relapsed) or that does not respond to treatment (refractory). Selvigaltin works by blocking the activity of a protein called galectin-3. Galectin-3 is involved in various cellular processes, including inflammation and tissue scarring, which is associated with worse outcomes in several forms of cancer. By blocking the activity of galectin-3, selvigaltin may help reduce inflammation and tissue scarring. Daratumumab-hyaluronidase is a drug composed of daratumumab and hyaluronidase. Daratumumab is in a class of medications called monoclonal antibodies. It binds to a protein called CD38, which is found on some types of immune cells and cancer cells, including myeloma cells. Daratumumab may block CD38 and help the immune system kill cancer cells. Hyaluronidase helps deliver the daratumumab to CD38-expressing cancer cells. Carfilzomib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Dexamethasone is in a class of medications called corticosteroids. It is used to reduce inflammation and lower the body's immune response to help lessen the side effects of chemotherapy drugs. Giving selvigaltin with standard of care treatment may be safe, tolerable, and/or effective in treating patients with relapsed or refractory multiple myeloma.

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Detailed Description

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PRIMARY OBJECTIVES:

I. To assess the safety and tolerability of selvigaltin in combination with standard of care treatment regimen (daratumumab, carfilzomib, and dexamethasone) for relapsed/refractory multiple myeloma (RRMM).

II. Determine the maximal tolerated dose (MTD) of selvigaltin in combination with a standard of care treatment regimen (daratumumab, carfilzomib, and dexamethasone) for RRMM.

SECONDARY OBJECTIVES:

I. To collect safety and preliminary efficacy data. II. Rate of bone marrow measurable residual disease (MRD) negativity.

EXPLORATORY OBJECTIVE:

I. To assess the effects of the combination treatment on the tumor microenvironment (TME) and on immune cell subsets in the peripheral blood and bone marrow.

OUTLINE: This is a dose-escalation study of selvigaltin in combination with daratumumab and recombinant human hyaluronidase (daratumumab-hyaluronidase), carfilzomib, and dexamethasone followed by a dose-expansion study.

Patients receive selvigaltin orally (PO) twice daily (BID) on days 1-28 of each cycle, daratumumab-hyaluronidase subcutaneously (SC) on days 1, 8, 15, and 22 of cycles 1-2 and days 1 and 15 of cycles 3-6, carfilzomib intravenously (IV) over 30 minutes on days 1, 8, and 15 of each cycle, and dexamethasone PO on days 1, 8, 15, and 22 of each cycle. Cycles repeat every 28 days for up to 6 cycles in the absence of disease progression or unacceptable toxicity. Patients who respond to treatment may optionally continue to receive treatment beyond 6 cycles with selvigaltin PO BID on days 1-28 of each cycle, daratumumab-hyaluronidase SC on day 1 of each cycle, carfilzomib IV over 30 minutes on days 1, 8, and 15 of each cycle, and dexamethasone PO on days 1, 8, 15, and 22 of each cycle. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.

Additionally, patients undergo echocardiography (ECHO) or multigated acquisition scan (MUGA) during screening and blood sample collection and bone marrow aspiration and biopsy throughout the trial. Patients also undergo positron emission tomography (PET)/computed tomography (CT), magnetic resonance imaging (MRI), and/or CT during screening and optionally during 1 year follow up.

After completion of study treatment, patients that remain on treatment beyond 6 cycles are followed up monthly until disease progression and then every 3 months for up to 3 years. Patients that do not continue treatment are followed up at 30 days and then every 3 months for up to 3 years or until start of a new treatment, disease progression, or death, whichever occurs first.

Conditions

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Recurrent Multiple Myeloma Refractory Multiple Myeloma

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Inclusion Criteria

* Age ≥ 18 years
* RRMM with measurable disease prior to initiation of study intervention. Measurable disease must include at least one of the following criteria:

* Serum M-protein \> 0.5 g/dL or,
* Urine M-protein \> 200 mg/24h or,
* Serum free light chain assay: involved free light chain (FLC) level \> 100 mg/L provided serum free light chain ratio is abnormal or,
* Bone marrow plasma cells \> 10% of total bone marrow cells
* Have received ≥ 1 prior line of therapy
* Planned treatment with the standard of care regimen of daratumumab, carfilzomib, and dexamethasone (Dara-KD) regimen
* Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0-2
* Absolute neutrophil count: ≥ 1,000 /µL
* Platelets: ≥ 75,000 /µL
* Hemoglobin: ≥ 7 g/dL
* Total bilirubin: ≤ 1.5 x upper limit of normal (ULN): ≤ 3.0 x ULN for Gilbert's Syndrome
* Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase \[SGOT\])/alanine aminotransferase (ALT) (serum glutamic pyruvic transaminase \[SGPT\]): ≤ 3 x ULN
* Estimated glomerular filtration rate (eGFR) ≥ 30 mL/min
* Left ventricular ejection fraction of at least 50% by ECHO or MUGA
* Participants of child-bearing potential must agree to use adequate contraceptive methods (e.g., hormonal or barrier method of birth control; abstinence) prior to study entry and for 6 months following the last dose of the investigational drug. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately
* Participants must understand the investigational nature of this study and sign an Independent Ethics Committee/Institutional Review Board approved written informed consent form prior to receiving any study related procedure

Exclusion Criteria

* Known hypersensitivity to selvigaltin or any of the excipients
* Prior hypersensitivity or grade 3 skin toxicity with daratumumab/carfilzomib
* Exposure to prior daratumumab/carfilzomib is permitted, however refractoriness within 6 months of study initiation is exclusionary
* Concomitant medication(s) known to be (a) a strong inhibitor or inducer of CYP3A4, (b) strong P-gp/MDRI inhibitors or inducers or, (c) QT interval (QT) prolonging as defined in the drug's label, with the exception of drugs that are considered absolutely essential for the care of the subject or if the Investigator believes that beginning therapy with such medication is vital to an individual subject's care while on study, and in either case, there is no alternative medication
* Electrocardiogram (ECG) demonstrating a corrected QT interval (QTc) interval \> 470 msec without a bundle block or patients with congenital long QT syndrome
* Coronary artery bypass, angioplasty, vascular stent, myocardial infarction, angina or congestive heart failure in the last 6 months
* Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, class III or IV heart failure (New York Heart Association functional classification system), or psychiatric illness/social situations that would limit compliance with study requirements
* Known active bacillus tuberculosis infection
* Known active HIV unless CD4+ \> 350 cells/µL, no history of AIDS-defining opportunistic infection within the past 12 months, or on effect anti-retroviral therapy (ART) with \> 4 weeks on treatment and viral load \< 400 copies/mL. Confirm low risk of drug-drug interactions or are able to be substituted
* Pregnant or nursing female participants
* Any condition which in the investigator's opinion deems the participant an unsuitable candidate to receive study drug

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No