A Phase 2 interventional study of Carfilzomib and Daratumumab in Recurrent Plasma Cell Myeloma and Refractory Plasma Cell Myeloma, sponsored by Academic and Community Cancer Research United. Active, not recruiting at 4 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-15.
Sponsored by Academic and Community Cancer Research United · Phase 2, Interventional, and Treatment
This phase II trial studies the effect of selinexor when combined with carfilzomib, daratumumab, and dexamethasone in treating patients with high-risk multiple myeloma that has come back (recurrent) or has not responded to treatment (refractory) and who have received 1-3 prior lines of therapy. Selinexor may stop the growth of cancer cells by blocking a protein called CRM1 that is needed for cell growth. Carfilzomib is a type of drug called a proteasome inhibitor. A proteasome is a protein found within cells that has the important role of identifying and marking damaged proteins that are needed to be destroyed by the cell for survival. The inhibition of the proteasome allows for damaged protein to accumulate within cells. This accumulation of damaged protein causes the cell to die. Daratumumab is a monoclonal antibody that may interfere with the ability of cancer cells to grow and spread. Anti-inflammatory drugs, such as dexamethasone lower the body's immune response and are used with other drugs in the treatment of some types of cancer. Giving selinexor in combination with carfilzomib, daratumumab, and dexamethasone may work better than carfilzomib, daratumumab, and dexamethasone alone in treating patients with multiple myeloma.
PRIMARY OBJECTIVE:
I. To evaluate the minimal residual disease (MRD) negativity rate, at 10\^-5 level of sensitivity by flow cytometry in bone marrow, with the addition of selinexor to daratumumab, carfilzomib and dexamethasone (SKDd) in patients with high-risk, relapsed or relapsed/refractory multiple myeloma.
SECONDARY OBJECTIVES:
I. To evaluate the overall response rate (partial response [PR] or better) of patients receiving SDKd combination for high risk, relapsed or relapsed/refractory multiple myeloma (MM) and assess depth of response (very good partial response [VGPR], complete response [CR], stringent complete response [sCR]).
II. To evaluate the time to response and duration of response in patients receiving SDKd combination for MM.
III. To evaluate the progression free survival and overall survival in patient receiving SDKd.
IV. To evaluate the MRD negativity rates to the level of sensitivity 10\^-6 by flow cytometry in bone marrow.
V. To evaluate the safety profile of the SDKd combination.
CORRELATIVE RESEARCH OBJECTIVES:
I. To explore the impact of baseline immunomodulatory derivative (IMiD)-14 scores gene expression profile (GEP) on progression free survival.
II. Quality of life assessment utilizing Quality of Life Questionnaire (QLQ)-Core (C) 30 and QLQ-Multiple Myeloma (MY) 20 (Cocks et al., 2007; Wisloff et al., 1996).
OUTLINE:
Patients receive carfilzomib intravenously (IV) over 30 minutes on days 1, 8, and 15 and daratumumab IV as a split dose on cycle 1 days 1 and 2 then on days 8, 15, and 22 of cycle 1, then on days 1, 8, 15, and 22 of cycle 2, days 1 and 15 of cycles 3-6, and day 1 of subsequent cycles. Patients also receive dexamethasone orally (PO) on days 1, 8 15, and 22, and selinexor PO on days 1, 8, and 15. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients without disease progression/clinical relapse or have initiated subsequent anti-cancer therapy, are followed up every 3 months until progression/clinical relapse or initiation of subsequent anti-cancer therapy, and then every 6 months for up to 5 years. Patients with disease progression/clinical relapse or have initiated subsequent anti-cancer therapy are followed up every 6 months for up to 5 years.
Patients must have a documented history of relapsed or relapsed/refractory MM as defined by International Myeloma Working Group (IMWG) criteria (Rajkumar et al., 2014)
High risk disease defined as 1 or more of the following:
High risk cytogenetics (any of the following)
Early relapse with first-line therapy
Patients must have evidence of adequate bone marrow reserves, as defined by the following:
For those with symptomatic pulmonary disease (e.g. chronic obstructive pulmonary disease [COPD], asthma) or other signs/symptoms of pulmonary disease, adequate pulmonary function as defined by a forced expiratory volume in one second (FEV1) >= 50% of predicted and diffusing capacity for carbon monoxide (DLCO)/alveolar volume (VA) >= 50% of predicted within 28 days prior to day 1 of treatment
Patients must have evidence of adequate renal function, as defined by the following: creatinine clearance (CrCl) >= 30 mL/min., as measured by a 24-hour urine collection, or estimated by the Cockcroft and Gault formula
Exclusion Criteria:
Any of the following because this study involves an agent that has known genotoxic, mutagenic and teratogenic effects:
Significant cardiac disease, including any of the following:
Positive hepatitis C antibody test result or positive hepatitis C ribonucleic acid (RNA) test result at screening
Patients cannot have other prior or concomitant malignancies except for:
Patients receive carfilzomib IV over 30 minutes on days 1, 8, and 15 and daratumumab IV on days 1 and 2 of cycle 1 then days 8, 15, and 22 of cycle 1, then, days 1, 8, 15, and 22 of cycle 2, days 1 and 15 of cycles 3-6, and day 1 of subsequent cycles. Patients also receive dexamethasone PO on days 1, 8 15, and 22, and selinexor PO on days 1, 8, and 15. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.
Drug: Carfilzomib · Biological: Daratumumab · Drug: Dexamethasone · Other: Quality-of-Life Assessment · Drug: Selinexor
Given IV
Also known as: Kyprolis, PR-171
Given IV
Also known as: Anti-CD38 Monoclonal Antibody, Darzalex, HuMax-CD38, JNJ-54767414
Given PO
Also known as: Aacidexam, Adexone, Aknichthol Dexa, Alba-Dex, Alin, Alin Depot, Alin Oftalmico, Amplidermis, Anemul mono, Auricularum, Auxiloson, Baycadron, Baycuten, Baycuten N, Cortidexason, Cortisumman, Decacort, Decadrol, Decadron, Decadron DP, Decalix, Decameth, Decasone R.p., Dectancyl, Dekacort, Deltafluorene, Deronil, Desamethasone, Desameton, Dexa-Mamallet, Dexa-Rhinosan, Dexa-Scheroson, Dexa-sine, Dexacortal, Dexacortin, Dexafarma, Dexafluorene, Dexalocal, Dexamecortin, Dexameth, Dexamethasone Intensol, Dexamethasonum, Dexamonozon, Dexapos, Dexinoral, Dexone, Dinormon, Fluorodelta, Fortecortin, Gammacorten, Hexadecadrol, Hexadrol, Lokalison-F, Loverine, Methylfluorprednisolone, Millicorten, Mymethasone, Orgadrone, Spersadex, TaperDex, Visumetazone, ZoDex
Ancillary studies
Also known as: Quality of Life Assessment
Given PO
Also known as: ATG-010, CRM1 Nuclear Export Inhibitor KPT-330, KPT-330, Selective Inhibitor of Nuclear Export KPT-330, SINE KPT-330, Xpovio
Rate of Minimal Residual Disease (MRD) Negative Status
MRD negative status at 10\^-5 level of sensitivity by flow cytometry will be considered synonymous with "success", unless specified otherwise. The proportion of success will be estimated by the number of success divided by the total number of evaluable patients. 95% confidence intervals for the true success proportion will be calculated according to the approach of Duffy and Santner.
Time frame: Up to 5 years post-treatment
Overall Response Rate (ORR)
Will be estimated by the total number of patients who achieve a confirmed response at any time divided by the total number of evaluable patients. A confirmed response is defined as a partial response (PR), very good partial response (VGPR), complete response (CR) or stringent complete response (sCR) noted as the objective status on two consecutive evaluations at least two weeks apart. Exact binomial 95% confidence intervals for the true overall response rate will be calculated. The depth of response (PR versus VGPR versus CR versus sCR) will also be summarized.
Time frame: 2 years
Time to Response
Time to response (TTR) is defined as time from the date of registration to the date of confirmed response using IMWG criteria. TTR will be summarized descriptively (median, range).
Time frame: 2 years
Duration of Response
Duration of response (DOR) is defined as time from date at which the patient's confirmed objective status is noted to the earliest date of progression or death. The DOR will be estimated using the method of Kaplan-Meier.
Time frame: 2 years
Progression-free Survival
The progression free survival (PFS) is defined as the time from registration to the earliest date of documentation of disease progression or death due to any cause. The distribution of PFS will be estimated using method of Kaplan-Meier.
Time frame: 2 years
Overall Survival (OS)
The overall survival (OS) is defined as the time from registration to death due to any cause. The distribution of OS will be estimated using method of Kaplan-Meier.
Time frame: 2 years
MRD Negativity Rate at 10^-6 of Sensitivity
Will be assessed in the bone marrow by flow cytometry estimated as the number of patients who have achieved MRD negative result at 10\^-6 level of sensitivity at any time divided by the total number of evaluable patients. Exact 95% binomial confidence intervals for the true rate of MRD negative response will also be calculated.
Time frame: 2 years
Number of Patients With a Grade 3 or Greater Adverse Event
Will be assessed per National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0. The number of patients with at least one grade 3 or greater AE, regardless of attribution, will be reported.
Time frame: 2 years
Effect of Immunomodulatory Imide Drug-14 Scores Gene Expression Profile (GEP) on Progression-Free Survival
The progression free survival (PFS) is defined as the time from registration to the earliest date of documentation of disease progression or death due to any cause. Patients will be categorized by their GEP and progression-free survival estimates will be compared across GEP scores.
Time frame: Baseline up to progression-free survival, assessed up to 5 years
Change in EORTC QLQ-C30 Scores From Baseline to End of Treatment
QOL will be measured using the EORTC QLQ-C30, a patient-reported questionnaire about patient ability to function, symptoms related to the cancer and its treatment, overall health and quality of life, and perceived financial impact of the cancer and its treatment. Changes in raw score from baseline to end of treatment will be assessed, in each of the physical and mental health domains. The Wilcoxon signed-rank test will be utilized to assess changes in raw scores. Mean change, along with standard deviation will be reported.
Time frame: Baseline up to progression, withdrawal, or end of treatment, assessed up to 5 years
Change in EORTC QLQ-MY20 Scores From Baseline to End of Treatment
QOL will be measured using the QLQ-MY20, a patient-reported questionnaire about patient ability to function, symptoms related to the cancer and its treatment, overall health and quality of life, and perceived financial impact of the cancer and its treatment. Changes in raw score from baseline to end of treatment will be assessed, in each of the physical and mental health domains. The Wilcoxon signed-rank test will be utilized to assess changes in raw scores. Mean change, along with standard deviation will be reported.
Time frame: Baseline up to progression, withdrawal, or end of treatment, assessed up to 5 years
| Milestone | Treatment (Carfilzomib, Daratumumab, Dexamethasone, Selinexor) |
|---|---|
| Started | 8 |
| Completed | 0 |
| Not completed | 8 |
| Withdrew: Alternative therapy | 1 |
| Withdrew: Physician decision | 2 |
| Withdrew: Disease progression | 2 |
| Withdrew: Still on treatment | 3 |
MRD negative status at 10\^-5 level of sensitivity by flow cytometry will be considered synonymous with "success", unless specified otherwise. The proportion of success will be estimated by the number of success divided by the total number of evaluable patients. 95% confidence intervals for the true success proportion will be calculated according to the approach of Duffy and Santner.
No measurements were reported for this outcome.
Will be estimated by the total number of patients who achieve a confirmed response at any time divided by the total number of evaluable patients. A confirmed response is defined as a partial response (PR), very good partial response (VGPR), complete response (CR) or stringent complete response (sCR) noted as the objective status on two consecutive evaluations at least two weeks apart. Exact binomial 95% confidence intervals for the true overall response rate will be calculated. The depth of response (PR versus VGPR versus CR versus sCR) will also be summarized.
| percentage of participants | Treatment (Carfilzomib, Daratumumab, Dexamethasone, Selinexor) |
|---|---|
| Overall Response Rate (ORR) | 75.0 (34.9 to 96.8) |
Time to response (TTR) is defined as time from the date of registration to the date of confirmed response using IMWG criteria. TTR will be summarized descriptively (median, range).
| days | Treatment (Carfilzomib, Daratumumab, Dexamethasone, Selinexor) |
|---|---|
| Time to Response | 34 (30 to 85) |
Duration of response (DOR) is defined as time from date at which the patient's confirmed objective status is noted to the earliest date of progression or death. The DOR will be estimated using the method of Kaplan-Meier.
| months | Treatment (Carfilzomib, Daratumumab, Dexamethasone, Selinexor) |
|---|---|
| Duration of Response | NA (NA to NA) |
The progression free survival (PFS) is defined as the time from registration to the earliest date of documentation of disease progression or death due to any cause. The distribution of PFS will be estimated using method of Kaplan-Meier.
| months | Treatment (Carfilzomib, Daratumumab, Dexamethasone, Selinexor) |
|---|---|
| Progression-free Survival | NA (6.2 to NA) |
The overall survival (OS) is defined as the time from registration to death due to any cause. The distribution of OS will be estimated using method of Kaplan-Meier.
| months | Treatment (Carfilzomib, Daratumumab, Dexamethasone, Selinexor) |
|---|---|
| Overall Survival (OS) | NA (NA to NA) |
Will be assessed in the bone marrow by flow cytometry estimated as the number of patients who have achieved MRD negative result at 10\^-6 level of sensitivity at any time divided by the total number of evaluable patients. Exact 95% binomial confidence intervals for the true rate of MRD negative response will also be calculated.
No measurements were reported for this outcome.
Will be assessed per National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0. The number of patients with at least one grade 3 or greater AE, regardless of attribution, will be reported.
| Participants | Treatment (Carfilzomib, Daratumumab, Dexamethasone, Selinexor) |
|---|---|
| Number of Patients With a Grade 3 or Greater Adverse Event | 6 |
The progression free survival (PFS) is defined as the time from registration to the earliest date of documentation of disease progression or death due to any cause. Patients will be categorized by their GEP and progression-free survival estimates will be compared across GEP scores.
Results for this outcome have not been posted.
QOL will be measured using the EORTC QLQ-C30, a patient-reported questionnaire about patient ability to function, symptoms related to the cancer and its treatment, overall health and quality of life, and perceived financial impact of the cancer and its treatment. Changes in raw score from baseline to end of treatment will be assessed, in each of the physical and mental health domains. The Wilcoxon signed-rank test will be utilized to assess changes in raw scores. Mean change, along with standard deviation will be reported.
Results for this outcome have not been posted.
QOL will be measured using the QLQ-MY20, a patient-reported questionnaire about patient ability to function, symptoms related to the cancer and its treatment, overall health and quality of life, and perceived financial impact of the cancer and its treatment. Changes in raw score from baseline to end of treatment will be assessed, in each of the physical and mental health domains. The Wilcoxon signed-rank test will be utilized to assess changes in raw scores. Mean change, along with standard deviation will be reported.
Results for this outcome have not been posted.
Collected over 2 years. Non-serious events are listed at a 0% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Treatment (Carfilzomib, Daratumumab, Dexamethasone, Selinexor) | 0/8 (0%) | 4/8 (50%) | 7/8 (87.5%) |
| Event | Treatment (Carfilzomib, Daratumumab, Dexamethasone, Selinexor) |
|---|---|
| Febrile neutropeniaBlood and lymphatic system disorders | 1/8 |
| Infections and infestations - Oth specInfections and infestations | 1/8 |
| Lung infectionInfections and infestations | 1/8 |
| Upper respiratory infectionInfections and infestations | 1/8 |
| Infusion related reactionInjury, poisoning and procedural complications | 1/8 |
| PneumonitisRespiratory, thoracic and mediastinal disorders | 1/8 |
| Skin and subcut tissue disord - Oth specSkin and subcutaneous tissue disorders | 1/8 |
| Event | Treatment (Carfilzomib, Daratumumab, Dexamethasone, Selinexor) |
|---|---|
| FatigueGeneral disorders and administration site conditions | 5/8 |
| DiarrheaGastrointestinal disorders | 4/8 |
| HypokalemiaMetabolism and nutrition disorders | 4/8 |
| AnemiaBlood and lymphatic system disorders | 3/8 |
| Nasal congestionRespiratory, thoracic and mediastinal disorders | 3/8 |
| NauseaGastrointestinal disorders | 2/8 |
| VomitingGastrointestinal disorders | 2/8 |
| Upper respiratory infectionInfections and infestations | 2/8 |
| Creatinine increasedInvestigations | 2/8 |
| Neutrophil count decreasedInvestigations | 2/8 |
| Age, Continuous(years) | Treatment (Carfilzomib, Daratumumab, Dexamethasone, Selinexor) |
|---|---|
| Mean | 64.0 ± 7.43 |
| Sex: Female, Male(Participants) | Treatment (Carfilzomib, Daratumumab, Dexamethasone, Selinexor) |
|---|---|
| Female | 2 |
| Male | 6 |
| Ethnicity (NIH/OMB)(Participants) | Treatment (Carfilzomib, Daratumumab, Dexamethasone, Selinexor) |
|---|---|
| Hispanic or Latino | 2 |
| Not Hispanic or Latino | 6 |
| Unknown or Not Reported | 0 |
| Race (NIH/OMB)(Participants) | Treatment (Carfilzomib, Daratumumab, Dexamethasone, Selinexor) |
|---|---|
| American Indian or Alaska Native | 0 |
| Asian | 0 |
| Native Hawaiian or Other Pacific Islander | 0 |
| Black or African American | 2 |
| White | 6 |
| More than one race | 0 |
| Unknown or Not Reported | 0 |
| Prior Lines of Therapy(Participants) | Treatment (Carfilzomib, Daratumumab, Dexamethasone, Selinexor) |
|---|---|
| 1 | 4 |
| 2 | 2 |
| 3 | 2 |
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