Iberdomide Versus Observation Off Therapy After Idecabtagene Vicleucel CAR-T for Multiple Myeloma
NCT ID: NCT06179888
Last Updated: 2025-12-26
Study Results
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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RECRUITING
PHASE2
78 participants
INTERVENTIONAL
2024-08-27
2027-10-31
Brief Summary
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Detailed Description
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I. To establish and confirm the safety and dose of iberdomide as maintenance after idecabtagene vicleucel (ide-cel) CAR-T. (Safety run-in) II. To assess whether iberdomide maintenance therapy after idecabtagene vicleucel CAR-T cell therapy increases progression-free survival (PFS) relative to observation without additional therapy. (Randomized phase II)
SECONDARY OBJECTIVES:
I. To demonstrate anti-tumor activity, defined as conversion from non-minimal residual disease (MRD) complete response (CR)/stringent CR (sCR) status to MRD-negative CR/sCR, as well as improvement in PFS in the safety run-in cohort. (Safety run-in) II. To estimate the rate of conversion from MRD-positive at baseline to MRD-negative at any time point post-initiation of iberdomide maintenance or observation without additional therapy. (Key secondary objective; Randomized phase II) III. To estimate overall survival (OS) distribution post-initiation of iberdomide maintenance or observation without additional therapy. (Key secondary objective; Randomized phase II) IV. To estimate the minimal residual disease (MRD)-negativity rate at pre-registration and at one year post-initiation of iberdomide maintenance or observation without additional therapy. (Randomized phase II) V. To estimate rate of deepening hematological response among patients with measurable multiple myeloma (MM) post-initiation of iberdomide maintenance or observation without additional therapy. (Randomized phase II) VI. To evaluate the safety profile of iberdomide maintenance. (Randomized phase II) VII. To evaluate the peripheral blood immunophenotype before and during iberdomide maintenance or observation without additional therapy. (Randomized phase II) VIII. To evaluate persistence of CAR-T cells with iberdomide maintenance or observation without additional therapy. (Randomized phase II)
CORRELATIVE SCIENCE OBJECTIVES:
I. To estimate the minimal residual disease (MRD)-negativity rate at start of maintenance and at one year post-initiation of maintenance or observation.
II. To estimate the sustained MRD-negativity rate. III. To estimate the rate of conversion from MRD-positive to MRD-negative. (Key objective) IV. To evaluate the peripheral blood immunophenotype before and during maintenance therapy or observation.
V. To evaluate the persistence of CAR-T cells. VI. To evaluate B-cell maturation antigen (BCMA) protein expression by immunohistochemistry on myeloma cells from patients that have relapsed/recurrent disease.
OUTLINE: Patients are randomized to 1 of 2 groups.
GROUP 1: Patients undergo disease monitoring at monthly clinic visits until disease progression. Patients also undergo bone marrow aspiration and biopsy throughout the trial, undergo collection of blood samples at screening and on study, and undergo positron emission tomography (PET)/computed tomography (CT) and/or skeletal survey x-ray, CT, or magnetic resonance imaging (MRI) at screening and then as clinically indicated.
GROUP 2: Patients receive iberdomide orally (PO) once daily (QD) on days 1-21 of each cycle. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients also undergo bone marrow aspiration and biopsy throughout the trial, undergo collection of blood samples at screening and on study, and undergo PET/CT and/or skeletal survey x-ray, CT, or MRI at screening and then as clinically indicated.
After completion of study treatment, patients are followed up within 30 days, then every 3-6 months until 4 years following registration.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
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Group 1 (monitoring)
Patients undergo disease monitoring at monthly clinic visits until disease progression. Patients also undergo bone marrow aspiration and biopsy throughout the trial, undergo collection of blood samples at screening and on study, and undergo PET/CT and/or skeletal survey x-ray, CT, or MRI at screening and then as clinically indicated.
Biospecimen Collection
Undergo collection of blood samples
Bone Marrow Aspiration
Undergo bone marrow aspiration
Bone Marrow Biopsy
Undergo bone marrow biopsy
Computed Tomography
Undergo PET/CT and/or CT
Magnetic Resonance Imaging
Undergo MRI
Patient Monitoring
Undergo disease monitoring
Positron Emission Tomography
Undergo PET/CT
Skeletal Survey X-Ray
Undergo skeletal survey x-ray
Group II (iberdomide)
Patients receive iberdomide PO QD on days 1-21 of each cycle. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients also undergo bone marrow aspiration and biopsy throughout the trial, undergo collection of blood samples at screening and on study, and undergo PET/CT and/or skeletal survey x-ray, CT, or MRI at screening and then as clinically indicated.
Biospecimen Collection
Undergo collection of blood samples
Bone Marrow Aspiration
Undergo bone marrow aspiration
Bone Marrow Biopsy
Undergo bone marrow biopsy
Computed Tomography
Undergo PET/CT and/or CT
Iberdomide
Given PO
Magnetic Resonance Imaging
Undergo MRI
Positron Emission Tomography
Undergo PET/CT
Skeletal Survey X-Ray
Undergo skeletal survey x-ray
Interventions
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Biospecimen Collection
Undergo collection of blood samples
Bone Marrow Aspiration
Undergo bone marrow aspiration
Bone Marrow Biopsy
Undergo bone marrow biopsy
Computed Tomography
Undergo PET/CT and/or CT
Iberdomide
Given PO
Magnetic Resonance Imaging
Undergo MRI
Patient Monitoring
Undergo disease monitoring
Positron Emission Tomography
Undergo PET/CT
Skeletal Survey X-Ray
Undergo skeletal survey x-ray
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* All patients must be pre-registered. For patients who consent to biobanking, submit the bone marrow and blood specimens
* Note: Patients who do not consent to the optional biobanking must be pre-registered, but specimens should not be submitted for these patients
* Please ensure patient has suspected diagnosis of multiple myeloma and meets on study guidelines prior to informed consent and biospecimen collection
* In cases where the bone marrow aspiration may be inadequate at Step 0 registration, the patient may still register on study
* ELIGIBILITY CRITERIA (STEP 1):
* Patients must have diagnostically confirmed MM in response status of stable disease or better by International Myeloma Working Group (IMWG) criteria at day 80-110 post-infusion of ide-cel. Patients in deep remission (e.g., CR, MRD-negative, etc.), are eligible
* All patients are required to have received ide-cel CAR-T within 80-110 days of registration
* Adverse events related to ide-cel are required to have resolved to grade =\< 1 except fatigue, alopecia, and other events that are unlikely to interfere with study assessments or pose a safety risk to participants
* Patients must have had ≥ 4 lines of therapy for MM (this includes proteasome inhibitor, immunomodulatory agent, and anti-CD38 monoclonal antibody)
* Prior therapy with iberdomide is permitted but prior iberdomide refractoriness is prohibited. Refractoriness is defined as per published IMWG criteria; progression while on iberdomide or within 60 days of stopping iberdomide
* Patients who have received MM-directed therapy since ide-cel infusion are not eligible, with the exception of short-course steroids for managing ide-cel toxicity as described below
* Age ≥ 18 years
* Eastern Cooperative Oncology Group (ECOG) performance status ≤ 2
* Absolute neutrophil count (ANC) ≥ 1,500/mm\^3
* Platelet transfusions or use of growth factors for neutropenia (e.g., filgrastim, tbo-filgrastim, sagramostim) are not permitted to meet enrollment criteria
* Platelet count ≥ 75,000/mm\^3
* Platelet transfusions or use of growth factors for neutropenia (e.g., filgrastim, tbo-filgrastim, sagramostim) are not permitted to meet enrollment criteria
* Calculated (calc.) creatinine clearance \>= 30 mL/min by Modification of Diet in Renal Disease (MDRD)
* Platelet transfusions or use of growth factors for neutropenia (e.g., filgrastim, tbo-filgrastim, sagramostim) are not permitted to meet enrollment criteria
* Total bilirubin ≤ 1.5 x upper limit of normal (ULN)
* Platelet transfusions or use of growth factors for neutropenia (e.g., filgrastim, tbo-filgrastim, sagramostim) are not permitted to meet enrollment criteria
* Aspartate aminotransferase (AST) (serum glutamic-oxaloacetic transaminase \[SGOT\])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase \[SGPT\]) ≤ 3 x upper limit of normal (ULN)
* Platelet transfusions or use of growth factors for neutropenia (e.g., filgrastim, tbo-filgrastim, sagramostim) are not permitted to meet enrollment criteria
* Not pregnant and not nursing, because this study involves an investigational agent whose genotoxic, mutagenic and teratogenic effect on the developing fetus and newborn are unknown.
* FCBP (female of childbearing potential) is a female who: 1) has achieved menarche (first menstrual cycle) at some point, 2) has not undergone a hysterectomy (the surgical removal of the uterus) or bilateral oophorectomy (the surgical removal of both ovaries) or 3) has not been naturally postmenopausal (amenorrhea following cancer therapy does not rule out childbearing potential) for at least 24 consecutive months (ie, has had menses at any time during the preceding 24 consecutive months).
* Females of childbearing potential (FCBP):
* Must use a contraceptive method that is highly effective (with a failure rate of \< 1% per year), preferably with low user dependency during the intervention period and for at least 28 days after the last dose of study intervention and agrees not to donate eggs (ova, oocytes) for the purpose of reproduction during this period. The investigator should evaluate the effectiveness of the contraceptive method in relationship to the first dose of study intervention.
* The effects of iberdomide on the developing human fetus are unknown. Immunodulatory derivative (IMiD) agents as well as other therapeutic agents used in this trial are known to be teratogenic. Females of child-bearing potential (FCBP) must have a negative serum or urine pregnancy test with a sensitivity of at least 25 mIU/mL within 10-14 days prior to, and again within 24 hours of starting iberdomide, and must either commit to continued abstinence from heterosexual intercourse or begin two acceptable methods of birth control, one highly effective method and one additional effective method at the same time, at least 28 days before she starts taking iberdomide. Examples of highly effective methods are intrauterine device, hormonal contraceptives, tubal ligation, or partner's vasectomy. Examples of barrier method are male condom, diaphragm, or cervical cap. FCBP must also agree to ongoing pregnancy testing. Men must agree to use a latex condom during sexual contact with a FCBP even if they have had a successful vasectomy. All patients must be counseled at a minimum of every 28 days about pregnancy precautions and risk of fetal exposure.
* Should a woman become pregnant or suspect she is pregnant while she or her partner are participating in this study, she should inform her treating physician immediately. FCBP must use adequate contraception for at least 28 days after discontinuation from study. Because of the potential for serious adverse reactions in a breastfed child, women are advised not to breastfeed during treatment and for at least 28 days after the last dose.
* The investigator is responsible for review of medical history, menstrual history, and recent sexual activity to decrease the risk for inclusion of a woman with a nearly undetected pregnancy.
* Non-childbearing potential is defined as follows (by other than medical reasons):
* ≥ 45 years of age and has not had menses for \> 1 year
* Patients who have been amenorrhoeic for \< 2 years without history of a hysterectomy and oophorectomy must have a follicle stimulating hormone value in the postmenopausal range upon screening evaluation
* Post-hysterectomy, post-bilateral oophorectomy, or post-tubal ligation. Documented hysterectomy or oophorectomy must be confirmed with medical records of the actual procedure or confirmed by an ultrasound. Tubal ligation must be confirmed with medical records of the actual procedure
* Male patients must agree to use an adequate method of contraception for the duration of the study and for 28 days afterwards.
* Male participants: contraceptive use should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies:
* Male participants are eligible to participate if they agree to the following during the intervention period and for 28 days after the last dose of study treatment to allow for clearance of any altered sperm:
* Refrain from donating sperm
PLUS, either:
* Be abstinent from heterosexual intercourse as their preferred and usual lifestyle (abstinent on a long term and persistent basis) and agree to remain abstinent OR
* Must agree to use contraception/barrier as detailed below:
* Agree to use a male condom, even if they have undergone a successful vasectomy, and female partner to use an additional highly effective contraceptive method with a failure rate of \< 1% per year as when having sexual intercourse with a woman of childbearing potential (including pregnant females)
* Patients may not have polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin changes (POEMS) syndrome or amyloidosis involving any vital organ; amyloidosis found in skin or lymph nodes ("non-vital organs"), or incidental observation of amyloidosis on bone marrow biopsy, are both permissible. Plasma cell leukemia is permissible for study enrollment
* Patients with a prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen are eligible for this trial
* Human immunodeficiency virus (HIV)-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months prior to registration are eligible for this trial
* For patients with evidence of chronic hepatitis B virus (HBV) infection, the HBV viral load must be undetectable on suppressive therapy, if indicated
* Patients with a history of hepatitis C virus (HCV) infection must have been treated and cured. Patients with HCV infection who are currently on treatment are eligible if they have an undetectable HCV viral load
* Patients may not have other, active infections at time of study registration. Recent infections are not exclusionary if antibiotics have been completed and infection is considered to be resolved / controlled. (Chronic maintenance antibiotics for prior infections, such as fungal, are permissible.)
* No known allergy to iberdomide
* No known medical condition causing an inability to swallow oral formulations of agents
* Patients receiving other active therapies for MM since ide-cel infusion are prohibited from participating in the study
* Corticosteroids used for the purpose of managing ide-cel toxicity (often neurotoxicity) soon after ide-cel administration are acceptable, provided that the participant will have been off corticosteroids for \> 30 days by cycle 1 day 1. Physiologically dosed chronic steroids are permitted
* Given the potential for interaction with iberdomide, patients who take strong CYP3A4 inducers or inhibitors may enroll after switching to a different agent and after an appropriate washout period for that particular medication, ideally three half-lives, prior to cycle 1 day 1
18 Years
ALL
No
Sponsors
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National Cancer Institute (NCI)
NIH
Responsible Party
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Principal Investigators
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Sascha A Tuchman
Role: PRINCIPAL_INVESTIGATOR
Alliance for Clinical Trials in Oncology
Locations
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UCI Health - Chao Family Comprehensive Cancer Center and Ambulatory Care
Irvine, California, United States
Cedars Sinai Medical Center
Los Angeles, California, United States
UC Irvine Health/Chao Family Comprehensive Cancer Center
Orange, California, United States
University of California Davis Comprehensive Cancer Center
Sacramento, California, United States
Augusta University Medical Center
Augusta, Georgia, United States
University of Illinois
Chicago, Illinois, United States
UI Health Care Mission Cancer and Blood - Ankeny Clinic
Ankeny, Iowa, United States
UI Health Care Mission Cancer and Blood - West Des Moines Clinic
Clive, Iowa, United States
Iowa Methodist Medical Center
Des Moines, Iowa, United States
UI Health Care Mission Cancer and Blood - Des Moines Clinic
Des Moines, Iowa, United States
Mercy Medical Center - Des Moines
Des Moines, Iowa, United States
UI Health Care Mission Cancer and Blood - Laurel Clinic
Des Moines, Iowa, United States
UI Health Care Mission Cancer and Blood - Waukee Clinic
Waukee, Iowa, United States
Baptist Memorial Hospital and Cancer Center-Desoto
Southhaven, Mississippi, United States
Siteman Cancer Center at Saint Peters Hospital
City of Saint Peters, Missouri, United States
Siteman Cancer Center at West County Hospital
Creve Coeur, Missouri, United States
Washington University School of Medicine
St Louis, Missouri, United States
Siteman Cancer Center-South County
St Louis, Missouri, United States
Siteman Cancer Center at Christian Hospital
St Louis, Missouri, United States
Nebraska Medicine-Bellevue
Bellevue, Nebraska, United States
Nebraska Medicine-Village Pointe
Omaha, Nebraska, United States
University of Nebraska Medical Center
Omaha, Nebraska, United States
Memorial Sloan Kettering Monmouth
Middletown, New Jersey, United States
Memorial Sloan Kettering Bergen
Montvale, New Jersey, United States
Memorial Sloan Kettering Commack
Commack, New York, United States
Memorial Sloan Kettering Westchester
Harrison, New York, United States
Memorial Sloan Kettering Cancer Center
New York, New York, United States
UNC Lineberger Comprehensive Cancer Center
Chapel Hill, North Carolina, United States
Carolinas Medical Center/Levine Cancer Institute
Charlotte, North Carolina, United States
Atrium Health Pineville/LCI-Pineville
Charlotte, North Carolina, United States
Atrium Health University City/LCI-University
Charlotte, North Carolina, United States
Atrium Health Cabarrus/LCI-Concord
Concord, North Carolina, United States
Levine Cancer Institute - Huntersville
Huntersville, North Carolina, United States
Atrium Health Union/LCI-Union
Monroe, North Carolina, United States
Wake Forest University Health Sciences
Winston-Salem, North Carolina, United States
Sanford Broadway Medical Center
Fargo, North Dakota, United States
Sanford Roger Maris Cancer Center
Fargo, North Dakota, United States
University of Oklahoma Health Sciences Center
Oklahoma City, Oklahoma, United States
Providence Portland Medical Center
Portland, Oregon, United States
Providence Saint Vincent Medical Center
Portland, Oregon, United States
Geisinger Medical Center
Danville, Pennsylvania, United States
Prisma Health Cancer Institute - Eastside
Greenville, South Carolina, United States
Baptist Memorial Hospital and Cancer Center-Memphis
Memphis, Tennessee, United States
Houston Methodist San Jacinto Hospital
Baytown, Texas, United States
Houston Methodist Cypress Hospital
Cypress, Texas, United States
Houston Methodist Hospital
Houston, Texas, United States
Methodist Willowbrook Hospital
Houston, Texas, United States
Houston Methodist West Hospital
Houston, Texas, United States
Houston Methodist Saint John Hospital
Nassau Bay, Texas, United States
Houston Methodist Sugar Land Hospital
Sugar Land, Texas, United States
Houston Methodist The Woodlands Hospital
The Woodlands, Texas, United States
University of Vermont Medical Center
Burlington, Vermont, United States
University of Vermont and State Agricultural College
Burlington, Vermont, United States
Swedish Cancer Institute-Edmonds
Edmonds, Washington, United States
Swedish Cancer Institute-Issaquah
Issaquah, Washington, United States
Swedish Medical Center-First Hill
Seattle, Washington, United States
Aurora Cancer Care-Southern Lakes VLCC
Burlington, Wisconsin, United States
Aurora Saint Luke's South Shore
Cudahy, Wisconsin, United States
Aurora Health Care Germantown Health Center
Germantown, Wisconsin, United States
Aurora Cancer Care-Grafton
Grafton, Wisconsin, United States
Aurora BayCare Medical Center
Green Bay, Wisconsin, United States
Aurora Cancer Care-Kenosha South
Kenosha, Wisconsin, United States
Aurora Bay Area Medical Group-Marinette
Marinette, Wisconsin, United States
Aurora Cancer Care-Milwaukee
Milwaukee, Wisconsin, United States
Aurora Saint Luke's Medical Center
Milwaukee, Wisconsin, United States
Aurora Sinai Medical Center
Milwaukee, Wisconsin, United States
Vince Lombardi Cancer Clinic - Oshkosh
Oshkosh, Wisconsin, United States
Aurora Cancer Care-Racine
Racine, Wisconsin, United States
Vince Lombardi Cancer Clinic-Sheboygan
Sheboygan, Wisconsin, United States
Aurora Medical Center in Summit
Summit, Wisconsin, United States
Vince Lombardi Cancer Clinic-Two Rivers
Two Rivers, Wisconsin, United States
Aurora Cancer Care-Milwaukee West
Wauwatosa, Wisconsin, United States
Aurora West Allis Medical Center
West Allis, Wisconsin, United States
Countries
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Facility Contacts
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Other Identifiers
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NCI-2023-10541
Identifier Type: REGISTRY
Identifier Source: secondary_id
A062102
Identifier Type: OTHER
Identifier Source: secondary_id
A062102
Identifier Type: OTHER
Identifier Source: secondary_id
NCI-2023-10541
Identifier Type: -
Identifier Source: org_study_id