Multiple Myeloma Clinical Trial
Carfilzomib Based Chemotherapy Mobilization for Autologous Stem Cell Transplants in Multiple Myeloma
This phase I study utilizes a 3+3 design with escalating cohorts of Carfilzomib at 20mg/m2, 27mg/m2, 36mg/m2, 45mg/m2, 56mg/m2, and 70mg/m2 to be administered concomitantly with Cyclophosphamide 2 gm/m2, Dexamethasone and Granulocyte colony-stimulating factor (G-CSF)
This study will be conducted as an open-label Phase I, single-center study in which subjects will receive carfilzomib, in combination cyclophosphamide and dexamethasone, for mobilization of peripheral blood stem cells. Study treatment will be administered in sequential cohorts, with three to six subjects in each cohort.
Following induction therapy, eligible patients will complete screening procedures. Treatment will consist of Dexamethasone 40mg IV/PO to be administered as a premedication. Carfilzomib dosed at each respective cohort level to be administered over 30 minutes followed by Cyclophosphamide dosed at 2gm/m2 administered over 1 hour.
For patients who are naïve to carfilzomib based therapy a priming dose of Carfilzomib (20mg/m2) will be administered 1 week prior to the cohort dosing.
On day 7 subjects will initiate high dose G-CSF injections at 14mcg/kg daily (with a cap of 1440mcg daily). On day 12 peripheral blood stem cell collection will begin per institutional protocol.
After successful peripheral blood stem cell mobilization, patients will proceed to a melphalan based autologous stem cell transplant.
Patients will have disease parameters assessed monthly after the transplant.
Subject has voluntarily agreed to participate by giving written informed consent before performance of any study-related procedure not part of normal medical care, with the understanding that consent may be withdrawn by the subject at any time without prejudice to future medical care. Informed Consent must be obtained prior to mobilization.
Subject has a confirmed diagnosis of multiple myeloma as specified by the International Myeloma Working Group criteria and must have measurable disease as defined by at least one of the following criteria:
Serum monoclonal protein ≥ 0.5 g/dL
≥200 mg of monoclonal protein in the urine on 24-hour electrophoresis
Serum immunoglobulin free light chain: involved FLC ≥ 10 mg/dL (≥ 100 mg/L) AND abnormal serum immunoglobulin kappa to lambda free light chain ratio
Subject is ≥18 years of age at the time of signing the informed consent form.
Subject has an Eastern Cooperative Oncology Group (ECOG) performance status of < 2.
Subjects must have measurable monoclonal protein, free light chains, and/or M-spike in blood or urine.
Subjects must have completed any "induction therapy"and have achieved less than a complete response (CR).
Subject has a life expectancy of >12 weeks.
Absolute neutrophil count (ANC) ≥1000 cells/mm3 (≥500 for patients with bone marrow biopsy displaying >50% involvement by myeloma)
Platelets count ≥ 50,000/mm3 (≥ 30,000 for patients with bone marrow biopsy displaying >50% involvement by myeloma)
Hemoglobin > 9.0 g/dL
Serum SGOT/AST <3.0 x upper limits of normal (ULN)
Serum SGPT/ALT <3.0 x upper limits of normal (ULN)
Serum total bilirubin <1.5 x ULN
Subject must have a MUGA scan or echo with LVEF >50% within 6 months of enrollment.
Females of childbearing potential (FCBP) must have a negative serum pregnancy test should be done within 7 days of treatment initiation and a negative urine pregnancy test within the 24 hours prior to the first study drug administration
FCBP and male subjects who are sexually active with FCBP must agree to use 2 highly effective concomitant methods of contraception including a male condom during the study and for 90 days following the last dose of study treatment
Male subjects must agree to not donate sperm while taking carfilzomib and for 90 days after the last dose of carfilzomib.
Subject has a history of allergic reactions to compounds containing captisol, or Carfilzomib
Subject has a NYHA Class III or IV heart disease and/or a history of active unstable angina, congestive heart disease, severe uncontrolled cardiac arrhythmia, electrocardiographic evidence of acute ischemia, active conduction system abnormalities or myocardial infarction within 6 months prior to enrollment. Prior to study entry, any ECG abnormality at Screening has to be documented by the investigator as not medically relevant.
Subject has a known HIV or hepatitis A, B, or C positivity---ONLY IF ACTIVE
Subject has active viral or bacterial infections or any coexisting medical problem that would significantly increase the risks of this treatment program.
Subject has concurrent, uncontrolled medical condition, laboratory abnormality, or psychiatric illness which could place him/her at unacceptable risk, including, but not limited to, uncontrolled hypertension, uncontrolled diabetes, active uncontrolled infection, and/or acute chronic liver disease (i.e., hepatitis, cirrhosis).
Subject has ≥Grade 2 peripheral neuropathy.
Subject has been diagnosed or treated for another malignancy within 3 years of enrollment, with the exception of complete resection of basal cell carcinoma or squamous cell carcinoma of the skin, an in situ malignancy, or low-risk prostate cancer after curative therapy.
Subject has received radiation therapy within 3 weeks of enrollment Enrollment of subjects who require concurrent radiotherapy (which must be localized in its field size) should be deferred until the radiotherapy is completed and 3 weeks have elapsed since the last date of therapy.
Subject has had prior mobilization or stem cell transplant.
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