Can a shot keep smoldering myeloma from igniting?
NCT ID NCT03301220
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This phase 3 study tested whether the drug daratumumab, given as a shot under the skin, could delay or prevent smoldering multiple myeloma from turning into active multiple myeloma. 390 people with high-risk smoldering myeloma were randomly assigned to receive daratumumab or to be watched without treatment. The main goal was to see how long it took for the disease to progress or for death to occur.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- daratumumab (a drug given as a shot under the skin)
- What this could lead to
- If it works, this could delay or prevent smoldering myeloma from turning into active multiple myeloma, potentially reducing the need for more intensive treatments later.
- What could go wrong
- This is a phase 3 trial, but the results may not apply to all patients. Daratumumab can cause infusion reactions, infections, and other side effects. It is not a cure, and patients may still progress to active myeloma.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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390 people
The number who actually took part.
- Started
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Nov 2017
- Finished
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May 2026
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * 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 Exclusion Criteria: * 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) * Primary systemic amyloid light-chain (AL) (immunoglobulin light chain) amyloidosis * Exposure to any of the following: 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)
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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A.O. Santa Croce e Carle
Cuneo, 12100, Italy
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A.O.U. Città della Salute e della Scienza di Torino- Divisione di Ematologia
Torino, 10126, Italy
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ASST dei Sette Laghi, Ospedale di Circolo e Fonazione Macchi
Varese, 21100, Italy
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Aarhus University Hospital
Aarhus N, 8200, Denmark
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Albert Schweitzer Ziekenhuis
Dordrecht, 3318 AT, Netherlands
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Alexandra General Hospital of Athens
Athens Attica, 115 28, Greece
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Algemeen Ziekenhuis Sint-Jan
Bruges, 8000, Belgium
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Ankara Numune Egitim ve Arastirma Hastanesi
Ankara, 06230, Turkey (Türkiye)
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Ankara Universitesi Tip Fakultesi Cebeci Arastirma ve Uygulama Hastanesi
Ankara, 06620, Turkey (Türkiye)
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Arizona Oncology Associates, PC - HAL
Phoenix, Arizona, 85016, United States
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Arthur J E Child Comprehensive Cancer Centre
Calgary, Alberta, T2N 5G2, Canada
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Austin Hospital
Heidelberg, 3150 or 3084, Australia
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Az Groeninge
Kortrijk, 8500, Belgium
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Barzilai Medical Center
Ashkelon, 78741, Israel
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Bnai Zion Medical Center
Haifa, 31048, Israel
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Businco Cancer Hospital
Cagliari, 09121, Italy
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CEMIC Saavedra
Ciudad de Buenos Aires, 1431, Argentina
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CHU Bretonneau
Tours, 37044, France
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CHU De Poitiers
Poitiers, 86021, France
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CHU de Bordeaux - Hospital Haut-Leveque
Pessac, 33604, France
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CHU de Limoges - Fédération Hépatologie
Limoges, 87000, France
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Calvary Mater Newcastle Hospital
Waratah, 2298, Australia
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Carmel Medical Center
Haifa, 3436212, Israel
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Centro de Atención e Investigación Clínica en Oncología
Mérida, 97134, Mexico
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Centro de Investigación Farmacéutica Especializada
Guadalajara, 44160, Mexico
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Centro de Pesquisa e Ensino em Oncologia de Santa Catarina CEPEN
Florianópolis, 88034-000, Brazil
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Christie Hospital NHS Trust
Manchester, M20 4BX, United Kingdom
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Chu Hotel Dieu
Nantes, 44035, France
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Chugoku Central Hospital
Fukuyama, 720-0001, Japan
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City Clinical Hospital # 40
Moscow, 129301, Russia
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City clinical hospital n.a. S.P.Botkin
Moscow, 125284, Russia
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Cleveland Clinic
Cleveland, Ohio, 44195, United States
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Clinica Sao Germano
São Paulo, 01455 010, Brazil
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Clinica Univ. de Navarra
Pamplona, 31008, Spain
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Clinical Research Center Sp z o o Medic R Sp k
Poznan, 61 731, Poland
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Clinical Research Institute of Hematology and Transfusiology
Saint Petersburg, 191024, Russia
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Cross Cancer Institute
Edmonton, Alberta, T6G 1Z2, Canada
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Dana Farber Cancer Institute
Boston, Massachusetts, 02115, United States
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Debreceni Egyetem Klinikai Kozpont
Debrecen, 4032, Hungary
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Del Pesti Centrumkorhaz Orszagos Hematologiai es Infektologiai Intezet Szent Laszlo Telephely
Budapest, 1097, Hungary
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ETZ TweeSteden
Tilburg, 5042 AD, Netherlands
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East Jefferson General Hospital
Metairie, Louisiana, 70006, United States
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Emergency Hospital of Dzerzhinsk
Dzerzhinsk, 606019, Russia
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Emory University
Atlanta, Georgia, 30322, United States
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Erciyes Universitesi Tip Fakultesi
Kayseri, 38039, Turkey (Türkiye)
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Fakultni Nemocnice Ostrava
Ostrava, 70852, Czechia
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Fakultni nemocnice Hradec Kralove
Hradec Králové, 500 05, Czechia
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Fakultni nemocnice Plzen, Hemato-onkologicke oddeleni
Pilsen, 323 00, Czechia
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Falu Lasarett
Falun, 79182, Sweden
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Fox Chase Cancer Center
Philadelphia, Pennsylvania, 19111, United States
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Fukuoka University Hospital
Fukuoka, 814-0180, Japan
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Fundacao Faculdade Regional de Medicina de Sao Jose do Rio Preto Hospital de Base
São José do Rio Preto, 15090-000, Brazil
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Galilee Medical Center
Nahariya, 22100, Israel
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Gelre Ziekenhuis
Apeldoorn, 7334 DZ, Netherlands
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Hadassah Medical Center
Jerusalem, 9112001, Israel
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Haemek
Afula, 18101, Israel
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Haga ziekenhuis
The Hague, 2545 AA, Netherlands
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Heart of England NHS Foundation Trust
Birmingham, B9 5SS, United Kingdom
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Helios Kliniken Berlin Buch Gmbh
Berlin, 13125, Germany
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Hosp Clinic de Barcelona
Barcelona, 08036, Spain
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Hosp Clinico Univ de Salamanca
Salamanca, 37007, Spain
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Hosp Univ Vall D Hebron
Barcelona, 8035, Spain
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Hosp. Gral. Univ. Gregorio Maranon
Madrid, 28007, Spain
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Hosp. Quiron Madrid Pozuelo
Pozuelo de Alarcón, 28223, Spain
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Hosp. Univ. Dr. Peset
Valencia, 46017, Spain
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Hosp. Univ. Germans Trias I Pujol
Badalona, 08916, Spain
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Hosp. Univ. Infanta Leonor
Madrid, 28031, Spain
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Hosp. Univ. Ramon Y Cajal
Madrid, 28034, Spain
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Hospices Civils de Lyon HCL
Lyon, 69002, France
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Hospital Aleman
Buenos Aires, C1118AAT, Argentina
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Hospital Italiano de Buenos Aires
Buenos Aires, C1199ABB, Argentina
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Hospital Italiano de La Plata
La Plata, B1900, Argentina
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Hospital Privado Centro Medico de Cordoba
Córdoba, X5016KEH, Argentina
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Hospital Santa Cruz
São Paulo, 04122-000, Brazil
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Hospital Sao Rafael
Salvador, 41235-190, Brazil
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Hospital Universitario de Nuevo León
Monterrey, 64460, Mexico
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Hospital das Clinicas de Porto Alegre
Porto Alegre, 90035-003, Brazil
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Innovative Clinical Research Inc
Whittier, California, 90805, United States
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Instituto Joinvilense de Hematologia e Oncologia Ltda Centro de Hematologia e Oncologia
Joinville, 89201-260, Brazil
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Instituto de Educacao, Pesquisa e Gestao em Saude Instituto Americas (COI)
Rio de Janeiro, 22775-002, Brazil
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Instituto de Ensino e Pesquisa São Lucas
São Paulo, 01236-030, Brazil
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Instytut Hematologii i Transfuzjologii
Warsaw, 02-776, Poland
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Istanbul Universitesi Istanbul Tip Fakultesi Hastanesi
Istanbul, 34093, Turkey (Türkiye)
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JM Research, SC
Cuernavaca, 62290, Mexico
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Japanese Red Cross Medical Center
Shibuya City, 150-8935, Japan
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Kagoshima University Hospital
Kagoshima, 890-8520, Japan
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Kanazawa University Hospital
Kanazawa, 920 8641, Japan
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Karolinska Universitetssjukhuset Huddinge
Stockholm, 141 86, Sweden
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Kent and Canterbury Hospital
Canterbury, CT1 3NG, United Kingdom
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Kobe City Medical Center General Hospital
Kobe, 650 0047, Japan
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Kurume University Hospital
Kurume, 830-0011, Japan
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Kyoto Kuramaguchi Medical Center
Kyoto, 603-8151, Japan
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Lakeridge Health Oshawa
Oshawa, Ontario, L1G-2B9, Canada
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Levine Cancer Institute, Carolinas HealthCare System
Charlotte, North Carolina, 28204, United States
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Matsuyama Red Cross Hospital
Matsuyama, 790-8524, Japan
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Mayo Clinic
Rochester, Minnesota, 55905, United States
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Medizinische Klinik A
Münster, 48149, Germany
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Miami Cancer Institute
Miami, Florida, 33176, United States
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Nagoya City University Hospital
Nagoya, 467 8602, Japan
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National Hospital Organization Kumamoto Medical Center
Kumamoto, 860-0008, Japan
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National Hospital Organization Matsumoto Medical Center
Matsumoto, 399-8701, Japan
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National Hospital Organization Okayama Medical Center
Okayama, 701-1192, Japan
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National Hospital Organization Osaka Minami Medical Center
Kawachi-Nagano, 586 8521, Japan
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National Hospital Organization Sendai Medical Center
Sendai, 983-8520, Japan
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National Hospital Organization Shibukawa Medical Center
Shibukawa, 377-0280, Japan
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New York Oncology Hematology
Albany, New York, 12206, United States
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Niigata Cancer Center Hospital
Niigata, 951-8566, Japan
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Nizhniy Novgorod Region Clinical Hospital
Nizhny Novgorod, 603126, Russia
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Nottingham University Hospitals NHS Trust
Nottingham, NG5 1PB, United Kingdom
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OHSU/CHM
Portland, Oregon, 97239, United States
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Odense Universitetshospital
Odense C, 5000, Denmark
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Ogaki Municipal Hospital
Gifu, 503-8502, Japan
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Oncology Dispensary of Komi Republic
Syktyvkar, 167904, Russia
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Ondokuz Mayis Universitesi Tip Fakultesi Hastanesi
Samsun, 55280, Turkey (Türkiye)
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Oslo University Hospital HF Ulleval sykehus
Oslo, 0450, Norway
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Ospedale S. Eugenio
Roma, 00144, Italy
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Perm Medical Sanitary Unit#1
Perm, 614078, Russia
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Policlinico Sant'Orsola Malpighi
Bologna, 40138, Italy
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Queen Elizabeth Hospital
Woodville, 5011, Australia
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Rabin Medical Center
Petah Tikva, 49100, Israel
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Rambam Medical Center
Haifa, 3525408, Israel
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Republican Hospital n.a.V.A.Baranov
Petrozavodsk, 185019, Russia
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Rigshospitalet
Copenhagen, 2100, Denmark
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Royal Stoke University Hospital
Stoke-on-Trent, ST4 6QG, United Kingdom
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Ryazan Regional Clinical Hospital
Ryazan, 390003, Russia
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Sanatorio Britanico de Rosario
Rosario, 2000, Argentina
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Semmelweis Egyetem I.Belgyogyaszati Klinika
Budapest, 1088, Hungary
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Semmelweis Egyetem, I. Belgyogyaszati Klinika
Budapest, 1083, Hungary
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Sheba Medical Center
Ramat Gan, 52621, Israel
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Sourasky Medical Center
Tel Aviv, 6423906, Israel
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St Bartholomew's Hospital
London, EC1A 7BE, United Kingdom
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St. Barbara-Klinik Hamm GmbH
Hamm, 59073, Germany
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Stony Brook University Medical Center
Stony Brook, New York, 11794, United States
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Sunderby Sjukhus Medicinkliniken
Luelå, 97180, Sweden
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Szpital Specjalistyczny w Brzozowie Podkarpacki Osrodek Onkologiczny im Ks B Markiewicza
Brzozów, 36-200, Poland
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Szpital Uniwersytecki nr 2 im. Jana Biziela w Bydgoszczy
Bydgoszcz, 85-168, Poland
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Texas Oncology P A
Tyler, Texas, 75702, United States
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Texas Oncology P A 1
Austin, Texas, 78705, United States
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The Ohio State University
Columbus, Ohio, 43210, United States
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The Perth Blood Institute
West Perth, 6005, Australia
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Trakya Universitesi Tip Fakultesi Hastanesi
Edirne, 22030, Turkey (Türkiye)
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UZ Gent
Ghent, 9000, Belgium
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UZBrussel
Brussels, 1090, Belgium
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Universidade Federal de Goias - Hospital das Clinicas da UFG
Goiânia, 74605-020, Brazil
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Universitaetsklinikum Heidelberg Medizinische Klinik V
Heidelberg, 69120, Germany
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Universitaetsklinikum Tuebingen der Eberhard-Karls-Universitaet, Abteilung fuer Innere Medizin II,
Tübingen, 72076, Germany
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Universitaetsklinikum Ulm
Ulm, 89081, Germany
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University Hospitals Bristol NHS Trust
Bristol, BS2 8ED, United Kingdom
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University of Iowa Hospitals and Clinics
Iowa City, Iowa, 52242, United States
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University of Michigan Comprehensive Cancer Center
Ann Arbor, Michigan, 48109, United States
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University of North Carolina
Chapel Hill, North Carolina, 27599, United States
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University of Washington
Seattle, Washington, 90805, United States
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Università di Roma 'La Sapienza' - Ospedale Umberto 1°
Rome, 00161, Italy
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VA North Texas Health Care System
Dallas, Texas, 75216, United States
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VA Southern Nevada Healthcare
North Las Vegas, Nevada, 89086, United States
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Virga Jessa Ziekenhuis
Hasselt, 3500, Belgium
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Vseobecna fakultni nemocnice v Praze - I. interni klinika - klinika hematologie
Prague, 128 08, Czechia
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Washington University
St Louis, Missouri, 63110, United States
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Wojewodzki Szpital Specjalistyczny w Legnicy
Legnica, 59-220, Poland
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ZNA
Antwerp, 2060, Belgium
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iBiomed Research Unit
Aguascalientes, 20121, Mexico
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l Hopital Pontchaillou
Rennes, 35000, France
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Ålborg Universitetshospital
Aalborg, 9000, Denmark
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