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Isatuximab, Carfilzomib, and Pomalidomide for the Treatment of Relapsed or Refractory Multiple Myeloma

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ClinicalTrials.gov Identifier: NCT04850599
Recruitment Status : Recruiting
First Posted : April 20, 2021
Last Update Posted : June 16, 2022
Oregon Health and Science University
Information provided by (Responsible Party):
Rebecca W. Silbermann, OHSU Knight Cancer Institute

Brief Summary:
This phase II trial studies the effect of isatuximab, carfilzomib, and pomalidomide in treating patients with multiple myeloma that has come back (relapsed) or does not respond to treatment (refractory). Isatuximab is a monoclonal antibody that may interfere with the ability of cancer cells to grow and spread. Carfilzomib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Chemotherapy drugs, such as pomalidomide, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving isatuximab, carfilzomib, and pomalidomide may help treat patients with multiple myeloma.

Condition or disease Intervention/treatment Phase
Recurrent Plasma Cell Myeloma Refractory Plasma Cell Myeloma Drug: Carfilzomib Biological: Isatuximab Drug: Pomalidomide Phase 2

Detailed Description:


I. To assess the rate of response following treatment with isatuximab combined with carfilzomib and pomalidomide (isatuximab [Isa] carfilzomib [Car] pomalidomide [Pom]).


I. To evaluate the safety profile of the IsaCarPom combination. II. To assess duration of disease response following treatment with the IsaCarPom regimen.

III. To assess depth of IsaCarPom treatment as it relates to timing of subsequent therapies.

IV. To assess progression-free survival associated with IsaCarPom. V. To assess overall survival associated with IsaCarPom.


I. To molecularly assess the depth of IsaCarPom treatment by measuring minimal residual disease (MRD).


Patients receive isatuximab intravenously (IV) over 30-60 minutes on days 1, 8, 15, and 22 of cycle 1, and days 1 and 15 of subsequent cycles, carfilzomib IV over 10 to 30 minutes on days 1, 8, 15, and pomalidomide orally (PO) once daily (QD) on days 1-21. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up every 12 weeks for up to 24 months.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 44 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Single-Arm Phase II Study of Isatuximab With Carfilzomib and Pomalidomide in Relapsed or Refractory Multiple Myeloma
Actual Study Start Date : June 14, 2022
Estimated Primary Completion Date : April 15, 2026
Estimated Study Completion Date : February 21, 2029

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Multiple Myeloma

Arm Intervention/treatment
Experimental: Treatment (isatuximab, carfilzomib, pomalidomide)
Patients receive isatuximab IV over 30-60 minutes on days 1, 8, 15, and 22 of cycle 1, and days 1 and 15 of subsequent cycles, carfilzomib IV over 10 to 30 minutes on days 1, 8, 15, and pomalidomide PO QD on days 1-21. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.
Drug: Carfilzomib
Given IV
Other Names:
  • Kyprolis
  • PR-171

Biological: Isatuximab
Given IV
Other Names:
  • Hu 38SB19
  • Isatuximab-irfc
  • SAR 650984
  • SAR650984
  • Sarclisa

Drug: Pomalidomide
Given PO
Other Names:
  • 4-Aminothalidomide
  • Actimid
  • CC-4047
  • Imnovid
  • Pomalyst

Primary Outcome Measures :
  1. Overall response rate (ORR) [ Time Frame: Up to end of cycle 4 (each cycles is 28 days), disease progression, start of new anti-myeloma therapy, or death (whichever occurs first) ]
    Defined as the proportion of participants who achieve a response >= partial response (PR) (i.e., PR, very good partial response, complete response, or stringent complete response) according to International Myeloma Working Group criteria. ORR will be measured from start of study treatment (i.e., cycle 1 day 1) to the earliest of the following events: end of cycle 4, start of new anti-myeloma therapy, documented disease progression, or death. Will be evaluated using the response-evaluable analysis set. A point estimate and exact 95% confidence interval will be provided.

Secondary Outcome Measures :
  1. Incidence of grade > 2 toxicities [ Time Frame: Up to 30 days after discontinuing study treatment ]
    Evaluated per National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version (v)5.0. Descriptive statistics will be used to summarize all on-study adverse events (AEs), grade 3-4 AEs, treatment-related AEs, grade 3-4 treatment-related AEs, SAEs, treatment-related severe (S)AEs, and AEs leading to study therapy discontinuation. Grade 3-4 laboratory abnormalities will be summarized using worst grade NCI CTCAE v5.0 criteria.

  2. Duration of response (DOR) [ Time Frame: From initial disease response (>= PR) until disease progression, disease-related death, death from other cause (competing risk), or end of follow-up (censored), whichever occurs first, assessed up to 24 months ]
    Defined for participants with a confirmed response (>= PR) as the time between first documentation of response and disease progression according to IMWG criteria or death due to disease, whichever occurs first. Will be analyzed using the response-evaluable analysis set. Since non-progression, non-multiple myeloma (MM)-related death is a competing risk when assessing DOR, this endpoint will be estimated by cumulative incidence functions (one for progression or MM-related death, one for non-progression death) and modeled with Fine-Gray sub-distribution hazard regression.

  3. Time to next treatment [ Time Frame: From start of study regimen until start of new anti-myeloma therapy, death from any cause before new therapy, or end of follow-up (censored), whichever occurs first, assessed up to 24 months ]
    Will be estimated by the Kaplan-Meier method and modeled with Cox regression.

  4. Progression-free survival [ Time Frame: From start of study treatment until disease progression, death, or end of follow-up (censored), whichever occurs first, assessed up to 24 months ]
    Will be analyzed using the response-evaluable analysis set. Will be estimated by the Kaplan-Meier method and modeled with Cox regression.

  5. Overall survival [ Time Frame: From start of study treatment until death or last known alive (censored), assessed up to 24 months ]
    Will be estimated by the Kaplan-Meier method and modeled with Cox regression.

Other Outcome Measures:
  1. Frequency of minimal residual disease negative remissions at time of complete response [ Time Frame: First post-baseline bone marrow or aspirate until last standard of care bone marrow biopsy on study (including follow-up), assessed up to 24 months ]

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Participant or legally authorized representative (LAR) must provide written informed consent before any study specific procedures or interventions are performed
  • Participants must be >= 18 years of age
  • Histologically or cytologically confirmed diagnosis of multiple myeloma (MM) as defined by 2016 International Myeloma Working Group (IMWG) criteria
  • Relapsed or refractory multiple myeloma, defined as meeting one or more of the following:

    • Nonresponsive to most recent therapy (stable disease or progressive disease [PD] while on treatment), or
    • Disease progression within 60 days of discontinuation from most recent therapy
  • Participant has received at least 1 line of prior therapy.

    • Prior exposure to proteasome inhibitor is permitted, with a 2 week washout period from last dose
    • Prior exposure to immunomodulatory imide drug (IMiD) therapy (lenalidomide, pomalidomide, or thalidomide) is permitted, with a 2 week washout period from last dose
    • Prior treatment with anti-CD38 therapy (e.g., daratumumab) is permitted, following a 6 month washout period from last dose
  • Measurable disease with at least one of the following:

    • Monoclonal immunoglobulin spike on serum protein electrophoresis of >= 0.5 g/dL
    • Urine monoclonal immunoglobulin spike of >= 200 mg/24 hours
    • Involved free light chain (FLC) >= 10 mg/dL and an abnormal serum FLC ratio (i.e., < 0.26 or > 1.65)
  • Eastern Cooperative Oncology Group (ECOG) performance status =< 2 (Karnofsky >= 50%)
  • Toxicity related to prior therapies that, in the opinion of the investigator, would potentially be worsened with anti-CD38 therapy should be resolved to baseline or less than grade 1
  • Anticipated life expectancy of at least 6 months (per investigator discretion)
  • No contraindication to receiving thromboprophylaxis for pomalidomide
  • Patients must have normal marrow and organ function as defined by:

    • Absolute neutrophil count >= 1,000/uL
    • Platelets >= 75,000/uL
    • Hemoglobin concentration of >= 8.0 g/dL within 14 days prior to registration. Patients may have received transfusion if greater than 7 days prior to registration
    • Must have adequate liver function, as defined by:

      • Total bilirubin =< 2 x institutional upper limits of normal (IULN)
      • Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamic pyruvic transaminase [SGPT]) =< 2 x IULN
    • Must have adequate renal function, as defined by:

      • Creatinine clearance (CrCl) of >= 30 mL/min, as measured by a 24-hour urine collection or as estimated by the Cockcroft and Gault formula. The serum creatinine value used in the calculation must have been obtained within 35 days prior to registration.
      • For patients with a creatinine clearance within the range of 30-45 mL/min, stability (i.e., not deteriorating) must be demonstrated over a period of 8 weeks prior to enrollment in the study
  • Left ventricular ejection fraction (LVEF) by echocardiogram >= 40% within 35 days prior to initiating study treatment
  • Women of childbearing potential must have a negative serum or urine pregnancy test within 14 days prior to receiving the first dose of study medication. If the urine pregnancy test is positive or cannot be confirmed as negative, a serum pregnancy test will be required
  • Female participants of childbearing potential (FOCBP) must agree to use highly-effective method(s) of contraception during the study and for 3 months after the last dose of study drug. FOCBP are those who have not been surgically sterilized or have not been free from menses for > 1 year without an alternative medical cause
  • Male participants must agree to use an adequate method of contraception starting with the first dose of study therapy through 3 months after the last dose of study drug

Exclusion Criteria:

  • Waldenstrom macroglobulinemia
  • Multiple myeloma of immunoglobulin M (IgM) subtype
  • POEMS syndrome (polyneuropathy, organomegaly, endocrinopathy, monoclonal protein, and skin changes)
  • Plasma cell leukemia (> 2.0 x 10^9/L circulating plasma cells by standard differential)
  • Myelodysplastic syndrome
  • Participants with known or suspected amyloidosis
  • Individuals that are refractory to prior treatment with either carfilzomib or pomalidomide
  • Intolerance leading to discontinuation of either carfilzomib or pomalidomide
  • Prior allogeneic stem cell transplant
  • Second malignancy requiring concurrent treatment or those with non-hematological malignancies (except non-melanoma skin cancers). Cancer treated with curative intent < 5 years previously will not be allowed unless approved by the principal investigator (PI). Cancer treated with curative intent > 5 years previously is allowed
  • Any known allergies or hypersensitivity to isatuximab or other monoclonal antibody therapies and required premedications
  • Known history of allergy to Captisol (a cyclodextrin derivative used to solubilize carfilzomib)
  • Hypersensitivity to any of the components of study therapy that is not amenable to premedication with steroids and H2 blockers
  • Participant has received prior chemotherapy, targeted small molecule therapy, or radiation therapy within 2 weeks or 5 pharmacokinetic half-lives of the treatment, whichever is longer, of the first dose of study medication. Wash-out period of prior anti-CD38 therapy (e.g. Daratumumab) is 6 months before first dose of study medication.

    • Exception: Emergency use of a short course of corticosteroids (equivalent of dexamethasone 40 mg per day for a maximum of 4 days) before treatment is not a barrier to eligibility
  • Participant has undergone autologous stem cell transplant within 90 days of the first dose of study medication
  • Ongoing adverse events related to a previously administered anti-myeloma therapy (including radiation therapy) >= grade 1

    • Exception: Potential participants with =< grade 2 neuropathy may, at the discretion of the investigator, qualify for the study
  • Active autoimmune disease, except vitiligo or hypothyroidism
  • Active and ongoing steroid use, except for non-systemically absorbed treatments (such as inhaled or topical steroid therapy for asthma, chronic obstructive pulmonary disease [COPD], allergic rhinitis, or dermatologic conditions) and the emergency use of corticosteroids outlined above
  • Known human immunodeficiency virus (HIV) infection
  • Ongoing or active systemic infection
  • Seropositive for hepatitis B virus (HBV) defined by a positive test for hepatitis B surface antigen (HBsAg). Subjects with resolved infection (i.e., subjects who are HBsAg negative but positive for antibodies to hepatitis B core antigen [anti-HBc] and/or antibodies to hepatitis B surface antigen [anti-HBs]) must be screened using real-time polymerase chain reaction (PCR) measurement of hepatitis B virus deoxyribonucleic acid (DNA) levels. Those who are PCR positive will be excluded. Exception: Subjects with serologic findings suggestive of HBV vaccination (anti-HBs positivity as the only serologic marker) AND a known history of prior HBV vaccination, do not need to be tested for HBV DNA by PCR
  • Seropositive for hepatitis C virus (HCV) (except in the setting of a sustained virologic response, defined as aviremia at least 12 weeks after completion of antiviral therapy)
  • Evidence of current uncontrolled cardiovascular conditions, including uncontrolled hypertension, uncontrolled cardiac arrhythmias, symptomatic congestive heart failure (New York Heart Association [NYHA] Class III or IV), pulmonary hypertension, unstable angina, or myocardial infarction within the past 6 months
  • Participant has received a live vaccine within 30 days of planned start of study therapy
  • A history of non-infectious pneumonitis that required treatment with steroids, or current pneumonitis
  • Diagnosis of immunodeficiency or treatment with any form of immunosuppressive therapy within 7 days prior to the first dose of study medication
  • Pregnant or breastfeeding
  • Any medical or psychiatric conditions that in the opinion of the PI would preclude safe participation in protocol

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04850599

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United States, Oregon
OHSU Knight Cancer Institute Recruiting
Portland, Oregon, United States, 97239
Contact: Rebecca W. Silbermann    503-494-5304    silbermr@ohsu.edu   
Principal Investigator: Rebecca W. Silbermann         
Sponsors and Collaborators
OHSU Knight Cancer Institute
Oregon Health and Science University
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Principal Investigator: Rebecca W Silbermann OHSU Knight Cancer Institute
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Responsible Party: Rebecca W. Silbermann, Principal Investigator, OHSU Knight Cancer Institute
ClinicalTrials.gov Identifier: NCT04850599    
Other Study ID Numbers: STUDY00021808
NCI-2021-02297 ( Registry Identifier: CTRP (Clinical Trial Reporting Program) )
STUDY00021808 ( Other Identifier: OHSU Knight Cancer Institute )
First Posted: April 20, 2021    Key Record Dates
Last Update Posted: June 16, 2022
Last Verified: June 2022

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Multiple Myeloma
Neoplasms, Plasma Cell
Neoplasms by Histologic Type
Hemostatic Disorders
Vascular Diseases
Cardiovascular Diseases
Blood Protein Disorders
Hematologic Diseases
Hemorrhagic Disorders
Lymphoproliferative Disorders
Immunoproliferative Disorders
Immune System Diseases
Antibodies, Monoclonal
Immunologic Factors
Physiological Effects of Drugs
Angiogenesis Inhibitors
Angiogenesis Modulating Agents
Growth Substances
Growth Inhibitors
Antineoplastic Agents