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Keep this study
Lead
Janssen Research & Development, LLC
Age
18–any
Sex
ALL
Healthy volunteers
Not accepted
You may be eligible if
Diagnosis of high risk smoldering multiple myeloma (SMM) (per International Myeloma Working Group \[IMWG\] criteria) for less than or equal to (\<=) 5 years with measurable disease at the time of randomization, defined as serum M protein greater than or equal to (\>=) 10 gram per liter (g/L) or urine M protein \>= 200 milligram per 24 hours (mg/24 hours) or involved serum free light chain (FLC) \>=100 milligram per liter (mg/L) and abnormal serum FLC ratio
Clonal bone marrow plasma cells (BMPCs) \>= 10 percentage (%); and at least 1 of the following risk factors; Serum M protein \>= 30 g/L, immunoglobulin (Ig)A SMM, immunoparesis with reduction of 2 uninvolved immunoglobulin isotypes (only IgA, IgM, and IgG should be considered in determination for immunoparesis; IgD and IgE are not considered in this assessment), serum involved: uninvolved FLC ratio \>= 8 and less than (\<) 100, or clonal BMPCs greater than (\>) 50% to \<60% with measurable disease
Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1
Women of childbearing potential must commit to either abstain continuously from heterosexual sexual intercourse or to use highly effective method of contraception
A woman of childbearing potential must have a negative serum or urine pregnancy test at screening within 14 days prior to randomization
During the study and for 3 months after receiving the last dose of daratumumab, a woman must agree not to donate eggs (ova, oocytes) for the purposes of assisted reproduction
You may not be if
Multiple myeloma (MM), requiring treatment, defined by any of the following:
1. Bone lesions (1 or more osteolytic lesions on low-dose whole body computed tomography \[LDCT\], positron-emission tomography with computed tomography \[PET-CT\] or CT). Participants who have benign/post-traumatic bone lesions visible on screening images as well as previous imaging, may be considered for inclusion. Details (diagnosis, location, duration) on benign/post-traumatic pre-existing bone lesions that can be seen on the screening images (example \[eg.\], old fractures) and were also present on previous imaging are to be reported in the case report form (CRF)
2. Hypercalcemia (serum calcium greater than \[\>\]0.25 millimoles per liter \[mmol/L\] \[\>1 milligram per deciliter {mg/dL}\] higher than upper limit of normal \[ULN\] or \>2.75 mmol/L \[\>11 mg/dL\]). Participants who have clinically stable hypercalcemia attributable to a disease other than multiple myeloma (eg, hyperparathyroidism) may be considered for inclusion after a case by case review by the medical monitor
3. Renal insufficiency, preferably determined by creatinine clearance less than (\<)40 milliliter per minute (mL/min) measured or estimated using the Modification of Diet in Renal Disease (MDRD), or serum creatinine \>177 micromole per liter (μmol/L). Participants who have clinically stable renal insufficiency attributable to a disease other than multiple myeloma (eg, glomerulonephritis) may be considered for inclusion after a case by case review by the medical monitor
4. Anemia, defined as hemoglobin \<10 gram per deciliter (g/dL) or \>2 g/dL below lower limit of normal or both; transfusion support or concurrent treatment with erythropoietin stimulating agents is not permitted. Participants who have clinically stable anemia attributable to a disease other than multiple myeloma (eg, thalassemia, vitamin B12 deficiency, iron deficiency) may be considered for inclusion after a case by case review by the medical monitor
5. Clonal BMPC percentage \>=60%
6. Serum FLC ratio (involved:uninvolved) \>=100 (the involved FLC must be \>=100 mg/L)
7. More than 1 focal lesion \>=5 millimeter (mm) in diameter by magnetic resonance imaging (MRI)
1. Prior exposure to daratumumab or prior exposure to other anti-Cluster of Differentiation 38 (anti-CD38) therapies
2. Prior exposure to approved or investigational treatments for SMM or MM (including but not limited to conventional chemotherapies, immunomodulatory agent \[IMiDs\], or proteasome inhibitor \[PIs\]). Stable standard dosing of bisphosphonate and denosumab as indicated for osteoporosis is acceptable
3. Exposure to investigational drug (including investigational vaccines) or invasive investigational medical device for any indication within 4 weeks or 5 half-lives, whichever is longer, before Cycle 1, Day 1
4. Ongoing treatment with corticosteroids with a dose \>10 milligram (mg) prednisone or equivalent per day at the time of randomization; or \>280 mg cumulative prednisone dose or equivalent for any 4-week period in the year prior to randomization
5. Ongoing treatment with other monoclonal antibodies (eg, infliximab, rituximab), immunomodulators (eg, abatacept, methotrexate, azathioprine, cyclosporine) or other treatments that are likely to interfere with the study procedures or results
Received treatment (chemotherapy, surgery, et cetera \[etc\]) for a malignancy (other than SMM) within 3 years before the date of randomization (exceptions are squamous and basal cell carcinomas of the skin, carcinoma in situ of the cervix or breast, or other non-invasive lesion), which is considered cured with minimal risk of recurrence within 3 years
Medical or psychiatric condition or disease (for example, active systemic disease \[including presence of auto-antibodies\], uncontrolled diabetes) that is likely to interfere with the study procedures or results, or that in the opinion of the investigator, would constitute a hazard for participating in this study
Known allergies, hypersensitivity, or intolerance to corticosteroids, monoclonal antibodies, hyaluronidase, or other human proteins, or their excipients, or known sensitivity to mammalian-derived products (including dairy allergy)
Clareo Health | A Study of Subcutaneous Daratumumab Versus Active Monitoring in Participants With High-Risk Smoldering Multiple Myeloma
