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A Study of Pembrolizumab Added to the Standard First-Line Therapy of Cyclophosphamide, Bortezomib, and Dexamethasone (CyBorD) for NDMM NTE

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT04258683
Recruitment Status : Withdrawn (Study terminated due to changing treatment landscape)
First Posted : February 6, 2020
Last Update Posted : November 23, 2022
Merck Sharp & Dohme LLC
Information provided by (Responsible Party):
Canadian Myeloma Research Group

Brief Summary:
This is a phase 2A multi-centre, open label, pilot study of pembrolizumab added to the standard first-line therapy of cyclophosphamide, bortezomib and dexamethasone (CyBorD) in newly diagnosed patients with multiple myeloma that are not eligible for autologous stem cell transplantation.

Condition or disease Intervention/treatment Phase
Multiple Myeloma Drug: Pembrolizumab Phase 2

Detailed Description:

This is a phase 2A, pilot study of pembrolizumab administered in combination with CyBorD in newly diagnosed, transplant ineligible multiple myeloma patients who achieve less than VGPR (according to IMWG criteria) after two cycles of treatment.

Newly diagnosed multiple myeloma patients will start their standard CyBorD treatment with the combination of cyclophosphamide administered at 300 mg/m2 orally, bortezomib administered at 1.5 mg/m2 subcutaneously, and dexamethasone administered orally at 40 mg, all given on days 1, 8, 15 and 22 of each 28-day cycle. Patients not progressing after 2 cycles of CyBorD treatment and achieving less than VGPR by IMWG criteria will be screened for this study. Subjects meeting the eligibility criteria will add pembrolizumab to their standard CyBorD treatment starting with cycle 4 day 1, which will be cycle one of this study treatment. Pembrolizumab in combination with CyBorD will be administered intravenously at 200 mg at day 1 of every 3-week cycle for 8 cycles (24 weeks). CyBorD will be discontinued after 24 weeks and Pembrolizumab will be administered as a single agent at the same dose for an additional 27 cycles (81 weeks).

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 0 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Phase 2A Multi Centre, Open Label, Pilot Study Of Pembrolizumab Added to The Standard First-Line Therapy Of Cyclophosphamide, Bortezomib And Dexamethasone (CyBorD) In Newly Diagnosed Multiple Myeloma Patients Not Eligible For Autologous Stem Cell Transplantation
Actual Study Start Date : February 17, 2021
Actual Primary Completion Date : October 31, 2022
Actual Study Completion Date : October 31, 2022

Arm Intervention/treatment
Experimental: Pembrolizumab with CyBorD
This will be a single arm study of pembrolizumab with cyclophosphamide, bortezomib and dexamethasone (CyBorD).
Drug: Pembrolizumab
Patients not progressing after 2 cycles of CyBorD treatment and achieving less than VGPR by IMWG criteria will be screened to receive pembrolizumab intravenously at 200mg at day 1 of every 3-week cycle for 8 cycles (24 weeks) starting Cycle 4 of CyBorD. CyBorD will be discontinued after 24 weeks and pembrolizumab will be administered as a single agent at the same dose for an additional 27 cycles (81 weeks).
Other Name: Keytruda

Primary Outcome Measures :
  1. Overall response rate (ORR) [ Time Frame: 36 months from study registration ]
    For this combination of Pembrolizumab with standard CyBorD, determine the response rate according to IMWG criteria.

Secondary Outcome Measures :
  1. Safety (adverse events) of Pembrolizumab in combination with CyBorD [ Time Frame: 36 months from study registration ]
    For this combination of Pembrolizumab with standard CyBorD, determine the incidence rates for adverse events using NCI CTCAE v5.0 grading. Generate a summary table for each term and body system, in addition to serious adverse events, subjects with related adverse events, subject deaths, and subjects who discontinue due to adverse events.

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:

  1. Must be able to understand and voluntarily sign an informed consent form (ICF).
  2. Must be ≥ 18 years of age at the time of signing the ICF.
  3. Newly diagnosed multiple myeloma (according to the IMWG diagnostic criteria) receiving standard of care CyBorD treatment and have not achieved at least VGPR or progressed after 2 cycles of treatment.
  4. Must have measurable disease according to the IMWG criteria as defined below:

    1. Serum M-protein ≥ 5 g/l
    2. Urine M-protein ≥ 200 mg/24 h
    3. Serum free light chains (FLC) assay: Involved FLC level ≥ 100 mg/l and an abnormal serum free light chain ratio (< 0.26 or > 1.65)
  5. Must have Eastern Cooperative Oncology Group (ECOG) performance status score of 0, 1, or 2.
  6. Must not be eligible for consolidation with high dose chemotherapy and autologous stem cell transplantation (ASCT).
  7. Must not have any known congenital or acquired immune suppression.
  8. Must have negative serology for HIV, HBV and HCV.
  9. Male subject must agree to use contraception as detailed in Appendix 3 of this protocol during the treatment period and for at least 120 days after the last dose of study treatment and refrain from donating sperm during this period.
  10. Female subject is eligible to participate if she is not pregnant (see Appendix 3 of protocol), not breastfeeding, and at least one of the following conditions applies:

    1. Not a woman of childbearing potential (WOCBP) as defined in Appendix 3 of protocol OR
    2. A WOCBP who agrees to follow the contraceptive guidance in Appendix 3 of protocol during the treatment period and for at least 30 days after the last dose of study treatment.
  11. Must have adequate organ function as defined below. Specimens must be collected within 10 days prior to the start of study treatment.

    • Absolute neutrophil count (ANC) ≥1500/µL
    • Platelets ≥100 000/µL
    • Hemoglobin ≥9.0 g/dL or ≥5.6 mmol/La
    • Creatinine OR Measured or calculated creatinine clearance (GFR can also be used in place of creatinine or CrCl) ≤1.5 × ULN OR

      ≥30 mL/min for subject with creatinine levels >1.5 × institutional ULN

    • Total bilirubin ≤1.5 ×ULN OR direct bilirubin ≤ULN for subjects with total bilirubin levels >1.5 × ULN
    • AST (SGOT) and ALT (SGPT) ≤2.5 × ULN (≤5 × ULN for subjects with liver metastases)
    • International normalized ratio (INR) OR prothrombin time (PT) Activated partial thromboplastin time (aPTT) ≤1.5 × ULN unless subject is receiving anticoagulant therapy as long as PT or aPTT is within therapeutic range of intended use of anticoagulants

Exclusion Criteria:

  1. Prior exposure to Pembrolizumab (or other anti-PD-1, anti-PD-L1, or anti-PD-L2 agent; or with an agent directed to another stimulatory or co-inhibitory T-cell receptor (e.g., CTLA-4, OX 40, CD137)).
  2. Known allergies, hypersensitivity to mannitol, corticosteroids, monoclonal antibodies or human proteins, or their excipients (refer to the Pembrolizumab IB), or known sensitivity to mammalian-derived products
  3. History of prior allogeneic stem cell transplantation or solid organ transplantation that requires immunosuppressive therapy.
  4. History of prior autologous peripheral stem cell transplantation or bone marrow transplantation for any indication.
  5. Subject who is currently participating in or has participated in a study of an investigational agent or has used an investigational device within 4 weeks prior to the first dose of study treatment. Subjects who have entered the follow-up phase of an investigational study may participate as long as it has been 4 weeks after the last dose of the previous investigational agent.
  6. Myeloma with known CNS involvement, plasma cell leukemia or amyloidosis.
  7. Chemotherapy or other anti-myeloma therapy other than three or less cycles of CyBorD. Prior bisphosphonates or other bone consolidation therapy is acceptable either if it was given for myeloma or for any other indication.
  8. Known congenital or acquired immune deficiency or ongoing chronic systemic steroid therapy (in dosing exceeding 10 mg daily of prednisone equivalent) or any other form of immune suppressive therapy within 7 days prior to the first dose of study drug for any indication, excluding Dexamethasone or steroids given as part of myeloma treatment.
  9. Has a history of (non-infectious) pneumonitis that required steroids or has current pneumonitis.
  10. Known chronic obstructive pulmonary disease (COPD), defined as a FEV1 <50% predicted value.
  11. Known moderate or severe persistent asthma within the last 2 years, or currently has uncontrolled asthma of any classification.
  12. History of or current uncontrolled cardiovascular disease including:

    1. Unstable angina, myocardial infarction, or known congestive heart failure Class III/IV (Appendix 5 of protocol) within the preceding 12 months.
    2. Transient ischemic attack within the preceding 3 months, pulmonary embolism within the preceding 2 months.
    3. Any of the following: sustained ventricular tachycardia, ventricular fibrillation, Torsades de Pointes, cardiac arrest, Mobitz II second degree heart block or third-degree heart block; known presence of dilated, hypertrophic, or restrictive cardiomyopathy.
    4. QTc prolongation as confirmed by ECG assessment at screening (QTc >470 milliseconds).
  13. Has an active infection requiring systemic therapy.
  14. Has received a live vaccine within 30 days prior to the first dose of study drug. Examples of live vaccines include, but are not limited to, the following: measles, mumps, rubella, varicella/zoster (chicken pox), yellow fever, rabies, Bacillus Calmette-Guérin (BCG), and typhoid vaccine. Seasonal influenza vaccines for injection are generally killed virus vaccines and are allowed; however, intranasal influenza vaccines (eg, FluMist®) are live attenuated vaccines and are not allowed.
  15. Has received prior radiotherapy within 2 weeks of start of study treatment. Subjects must have recovered from all radiation-related toxicities
  16. Prior history of malignancies, other than MM, unless the subject has been free of the disease for 3 years or longer. Exceptions include the following:

    1. Basal or squamous cell carcinoma of the skin.
    2. Carcinoma in situ of the cervix or breast
    3. Adenocarcinoma of the prostate (TNM stage of T1a or T1b)
  17. Women who are pregnant, breastfeeding or planning to become pregnant while enrolled in this study, or within 90 days after the last dose of study medications. Male subject who plans to father a child while enrolled in this study, or within 120 days after the last dose of study medications.
  18. Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the study.
  19. Has a history or current evidence of any condition (i.e. uncontrolled diabetes, active or uncontrolled infection, acute diffuse pulmonary disease, pericardial disease, uncontrolled thyroid dysfunction), therapy or laboratory abnormality that might confound the results of the study, interfere with the subject's participation for the full duration of the study, or is not in the best interest of the subject to participate, in the opinion of the treating Investigator.

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): NCT04258683

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Canada, Manitoba
CancerCare Manitoba
Winnipeg, Manitoba, Canada, R3E0V9
Canada, New Brunswick
The Moncton Hospital
Moncton, New Brunswick, Canada, E1C6Z8
Canada, Quebec
CIUSSS de l'Estrie-CHUS
Sherbrooke, Quebec, Canada, J1H5N4
Canada, Saskatchewan
Allan Blair Cancer Centre
Regina, Saskatchewan, Canada, S4T7T1
Sponsors and Collaborators
Canadian Myeloma Research Group
Merck Sharp & Dohme LLC
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Responsible Party: Canadian Myeloma Research Group
ClinicalTrials.gov Identifier: NCT04258683    
Other Study ID Numbers: CMRG 006
WINNIPEG ( Other Identifier: CMRG )
First Posted: February 6, 2020    Key Record Dates
Last Update Posted: November 23, 2022
Last Verified: November 2022
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Canadian Myeloma Research Group:
Hematologic Diseases
Plasma Cell
Cardiovascular Diseases
Immune System Diseases
Anti-Inflammatory Agents
Bone Marrow
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
Antineoplastic Agents, Immunological
Antineoplastic Agents
Immune Checkpoint Inhibitors
Molecular Mechanisms of Pharmacological Action