Daratumumab to Enhance Therapeutic Effectiveness of Revlimid in Smoldering Myeloma (DETER-SMM)

Official Summary

This phase III trial studies how well lenalidomide and dexamethasone works with or without daratumumab in treating patients with high-risk smoldering myeloma. Drugs used in chemotherapy, such as lenalidomide and dexamethasone, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Immunotherapy with monoclonal antibodies, such as daratumumab, may induce changes in the body's immune system and may interfere with the ability of tumor cells to grow and spread. Giving lenalidomide and dexamethasone with daratumumab may work better in treating patients with smoldering myeloma.

Eligibility Requirements

• Minimum Age: 18 Years

Study Design

• Study Type: INTERVENTIONAL
• Allocation: RANDOMIZED
• Model: PARALLEL
• Masking: NONE
• Enrollment: 288 participants

Study Arms

• Arm I (daratumumab, lenalidomide, dexamethasone) (EXPERIMENTAL)
  Patients receive daratumumab IV on days 1, 8, 15, and 22 of courses 1-2, days 1 and 15 of courses 3-6, and day 1 of courses 7-24. Patients also receive lenalidomide PO daily on days 1-21 and dexamethasone PO on days 1, 8, 15, and 22 in courses 1-12. Treatment repeats every 28 days for up to 24 courses in the absence of disease progression or unacceptable toxicity.
• Arm II (lenalidomide, dexamethasone) (EXPERIMENTAL)
  Patients receive lenalidomide PO daily on days 1-21 and dexamethasone PO on days 1, 8, 15, and 22 of courses 1-12. Treatment repeats every 28 days for up to 24 courses in the absence of disease progression or unacceptable toxicity.

Interventions

• BIOLOGICAL: Daratumumab — Given IV
• DRUG: Dexamethasone — Given PO
• DRUG: Lenalidomide — Given PO
• OTHER: Quality-of-Life Assessment — Ancillary studies
• OTHER: Questionnaire Administration — Ancillary studies

Primary Outcomes

• Overall survival (OS) (From randomization to death due to any cause, or censored at date last known alive, assessed up to 15 years)
• Functional Assessment of Cancer Therapy-General (FACT-G) score (Baseline to 24 cycles of treatment (each cycle is 28 days))

Secondary Outcomes

• Progression-free survival (PFS) (From randomization until disease progression or death due to any cause, or censored at date of last disease evaluation, assessed up to 15 years)
• Best response on treatment based on International Myeloma Working Group (IMWG) criteria (At 12 and 24 months)
• Incidence of adverse events by worst grade and type for treated patients determined using Common Terminology Criteria for Adverse Events (CTCAE) version 5.0 (Up to 28 days post-treatment)
• Incidence of grade 3 or higher infusion-related reactions over course 1 determined based on CTCAE (During cycle 1 of treatment (each cycle is 28 days))
• Stem cell (SC) mobilization failure (After 4 to 6 cycles of treatment (each cycle is 28 days))

Eligibility Criteria

Inclusion Criteria:

* Patients must be diagnosed with asymptomatic high-risk smoldering multiple myeloma (SMM) within the past 12 months. High-risk is defined by the presence of 2 or more of the following factors:

  * Abnormal serum free light chain ratio of involved to uninvolved \>20, but less than 100 if the involved FLC is \>= 10 mg/dL by serum free light chain (FLC) assay
  * Serum M-protein level \>= 2 gm/dL
  * Presence of t(4;14) or del 17p, del 13q or 1q gain by conventional cytogenetics or fluorescence in situ hybridization (FISH) studies.
  * \>20% plasma cells on biopsy or aspirate
* Bone marrow aspirate and/or biopsy is required to be performed within 42 days prior to randomization and must demonstrate 10-59% clonal plasma cells.
* \>= 1 g/dL on serum protein electrophoresis (within 28 days prior to randomization).
* \>= 200 mg of monoclonal protein on a 24 hour urine protein electrophoresis (within 28 days prior to randomization).

  * NOTE: In the rare situation where the serum protein electrophoresis (SPEP) is felt to be unreliable, then quantitative immunoglobulin levels on nephelometry or turbidometry can be accepted.
* SPEP, urine protein electrophoresis (UPEP), and serum FLC are required to be performed within 28 days prior to randomization.

  * NOTE: UPEP (on a 24-hour collection) is required; no substitute method is acceptable. Urine must be followed monthly if the baseline urine M-spike is \>= 200 mg/24 hour (hr), and urine in addition to serum must be followed in order to confirm a very good partial response (VGPR) or higher response.
* Patients must have no lytic lesions, no known plasmacytoma, and no unexplained hypercalcemia (i.e., \> 11 mg/dL or 1mg/dL above upper limit of normal \[ULN\]).
* Hemoglobin \>= 11 g/dL (within 28 days prior to randomization).
* Platelet count \>= 100,000 cells/mm\^3 (within 28 days prior to randomization).
* Absolute neutrophil count \>= 1500 cells/mm\^3 (within 28 days prior to randomization).
* Calculated creatinine clearance \>= 30 mL/min (within 28 days prior to randomization).
* Bilirubin =\< 1.5 mg/dL (within 28 days prior to randomization).
* Serum glutamate pyruvate transaminase (SGPT) (alanine aminotransferase \[ALT\]) and serum glutamic oxaloacetic transaminase (SGOT) (aspartate aminotransferase \[AST\]) =\< 2.5 times the upper limit of normal (within 28 days prior to randomization).
* Patients must not have any prior or concurrent systemic or radiation therapy for the treatment of myeloma. Patients must also not have contraindication to deep vein thrombosis (DVT) prophylaxis/aspirin.
* Patients must not have more than one focal marrow lesion on magnetic resonance imaging (MRI) of either pelvis or spine. Patients with indwelling pacemakers and/or ICD (implantable cardioverter-defibrillator) that is known or suspected to be MRI incompatible will be excused from this test.
* Concurrent use of erythropoietin is not allowed while on study therapy.
* Prior or glucocorticosteroid therapy for the treatment of multiple myeloma is not permitted. Prior systemic glucocorticosteroid use for the treatment of non-malignant disorders is permitted; concurrent use after registration on the study should be restricted to the equivalent of prednisone 10 mg per day. Prior or concurrent topical or localized glucocorticosteroid therapy to treat non-malignant comorbid disorders is permitted.
* Patients must not have active, uncontrolled seizure disorder. Patients must not have had a seizure in the last 6 months.
* Patients must not have uncontrolled intercurrent illness including uncontrolled hypertension, symptomatic congestive heart failure, unstable angina, uncontrolled cardiac arrhythmia, uncontrolled psychiatric illness or social situation that would limit compliance with the study, or a prior history of Stevens Johnson syndrome.
* Patient must have an Eastern Cooperative Oncology Group (ECOG) performance status 0, 1, or 2.
* Patients with monoclonal gammopathy of undetermined significance are not eligible.
* Patients must not have grade 2 or higher peripheral neuropathy per CTCAE.
* Patients must not have active, uncontrolled infection.
* Patients may have a history of current or previous deep vein thrombosis or pulmonary embolism but are required to take some form of anti-coagulation as prophylaxis if they are not currently on full-dose anticoagulation.
* Patients should not have New York Heart Association classification III or IV heart failure at baseline.
* Patients with a history of prior malignancy are eligible provided they were treated with curative intent and have been free of disease for the time period considered appropriate for cure of the specific cancer. For most diseases this time frame is 5 years.
* Patients must agree to register into the mandatory Risk Evaluation and Mitigation Strategy (REMS) program and be willing and able to comply with the requirements of REMS.
* Women must not be pregnant due to potential harm to the fetus from daratu

Trial Locations

• University of Alabama at Birmingham Cancer Center, Birmingham, Alabama, United States
• Anchorage Associates in Radiation Medicine, Anchorage, Alaska, United States
• Anchorage Radiation Therapy Center, Anchorage, Alaska, United States
• Alaska Breast Care and Surgery LLC, Anchorage, Alaska, United States
• Alaska Oncology and Hematology LLC, Anchorage, Alaska, United States
• Alaska Women's Cancer Care, Anchorage, Alaska, United States
• Anchorage Oncology Centre, Anchorage, Alaska, United States
• Katmai Oncology Group, Anchorage, Alaska, United States
• Providence Alaska Medical Center, Anchorage, Alaska, United States
• Fairbanks Memorial Hospital, Fairbanks, Alaska, United States
• ...and 10 more locations

Study Officials

• Natalie S Callander — PRINCIPAL_INVESTIGATOR
  ECOG-ACRIN Cancer Research Group

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