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Bortezomib, Cyclophosphamide, and Dexamethasone in Treating Patients With Primary Systemic Light Chain Amyloidosis

Phase II Study of Bortezomib, Cyclophosphamide and Dexamethasone in Patients With Primary Systemic Light Chain Amyloidosis

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01072773
Enrollment
2
Registered
2010-02-22
Start date
2010-03-31
Completion date
2012-06-30
Last updated
2014-04-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Primary Systemic Amyloidosis

Brief summary

RATIONALE: Bortezomib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as cyclophosphamide and dexamethasone, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Giving bortezomib together with combination chemotherapy may kill more cancer cells. PURPOSE: This phase II trial is studying how well giving bortezomib, cyclophosphamide, and dexamethasone together works in treating patients with primary systemic light chain amyloidosis.

Detailed description

PRIMARY OBJECTIVE: I. To assess the confirmed hematologic response rate of the combination of bortezomib, cyclophosphamide and dexamethasone in patients with primary systemic amyloidosis. SECONDARY OBJECTIVES: I. Organ response rate of the bortezomib, cyclophosphamide and dexamethasone combination. II. Severity and frequency of adverse events associated with bortezomib, cyclophosphamide and dexamethasone treatment in patients with primary systemic amyloidosis. III. Time to progression. IV. Survival. OUTLINE: Patients receive bortezomib IV on days 1, 8, and 15 and oral cyclophosphamide and oral dexamethasone once daily on days 1, 8, 15, and 22. Treatment repeats every 28 days for up to 12 courses in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed every 6 months for 2 years.

Interventions

DRUGbortezomib

1.3 mg/m\^2, by IV on days 1, 8 and 15 every 28 days

DRUGcyclophosphamide

300 mg/m\^2, orally, on days 1, 8, 15 & 22 every 28 days.

DRUGdexamethasone

40 mg, orally, on days 1, 8, 15 & 22 every 28 days

Sponsors

Mayo Clinic
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Histochemical diagnosis of amyloidosis as based on detection by polarizing microscopy of green birefringent material in Congo red-stained tissue specimens * Measurable disease of amyloid light chain amyloidosis as defined by at least ONE of the following: serum monoclonal protein \>= 1.0 g by protein electrophoresis, \> 200 mg of monoclonal protein in the urine on 24 hour electrophoresis, serum free light-chain \>= 7.5 mg/dL with an abnormal kappa:lambda ratio * Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) 0, 1 or 2 * Absolute neutrophil count \>= 1000/uL * Platelet \>= 75000/uL * Total bilirubin \< 3.0 mg/dL * Aspartate aminotransferase (AST) =\< 3 x upper limit of normal (ULN) * Creatinine clearance \>= 30ml/min * Women of childbearing potential should have a negative serum or urine pregnancy test done =\< 7 days prior to registration, and should be willing to use an acceptable method of birth control (i.e., a hormonal contraceptive, intra-uterine device, diaphragm with spermicide, condom with spermicide, or abstinence) for the duration of the study * Male subject agrees to use an acceptable method for contraception for the duration of the study * Previously treated amyloidosis; no limit to prior therapy provided there is adequate residual organ function * Symptomatic organ involvement (heart, kidney, liver/GI tract, peripheral nervous system or soft tissue); carpal tunnel syndrome skin purpura, or the presence of vascular amyloid on a bone marrow biopsy alone are not sufficient to meet criteria for symptomatic organ involvement * Renal involvement is defined as proteinuria (predominantly albumin) \> 0.5 g/day in a 24- hour urine collection * Cardiac involvement is defined as the presence of a mean left ventricular wall thickness on echocardiogram greater than 12 mm in the absence of a history of hypertension or valvular heart disease, or in the presence of unexplained low voltage (\< 0.5 mV) on the electrocardiogram * Hepatic involvement is defined as hepatomegaly (\>= 2 cm below costal margin) on physical exam or an alkaline phosphatase \> 1.5 x ULN * Peripheral nerve involvement is defined based on clinical history or abnormal sensory and/or motor findings on neurologic exam * Autonomic nerve involvement is defined as orthostasis, symptoms of nausea or dysgeusia, gastric atony by gastric emptying scan, diarrhea or constipation * Soft tissue and lymphatic involvement may be ascertained based on classic physical exam findings (macroglossia, shoulder pad sign, raccoon eyes, carpal tunnel syndrome, synovial enlargement, firm enlarged lymph nodes) or biopsy * Voluntary 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 subject any time without prejudice to future medical care * Willingness to return to Mayo Clinic enrolling institution for follow-up

Exclusion criteria

* Melphalan or other myelosuppressive agents =\< 3 weeks prior to registration; non-myelosuppressive agents like thalidomide, or high dose corticosteroids \<= 1week prior to registration * Concurrent use of corticosteroids, but patients may be on chronic steroids (maximum dose 20 mg/day prednisone equivalent) if they are being given for disorders other than amyloid, i.e., adrenal insufficiency, rheumatoid arthritis, etc * Any of the following because this study involves an agent whose genotoxic, mutagenic and teratogenic effects on the developing fetus and newborn are unknown: pregnant women and nursing women * Other active malignancy =\< 2 years prior to registration; EXCEPTIONS: Nonmelanotic skin cancer or carcinoma-in-situ of the cervix; NOTE: If there is a history or prior malignancy, they must not be receiving any specific treatment for their cancer * Co-morbid systemic illnesses or other severe concurrent disease which, in the judgment of the investigator, would make the patient inappropriate for entry into this study or interfere significantly with the proper assessment of safety and toxicity of the prescribed regimens including psychiatric illness/social situations that would limit compliance with study requirements * Known to be HIV positive * Receiving any other investigational agent which would be considered as a treatment for the primary neoplasm * Clinically overt multiple myeloma (monoclonal Bone Marrow Plasma Count \> 30%), and at least one of the following: bone lesions or hypercalcemia * History of myocardial infarction =\< 6 months, or requiring use of ongoing maintenance drug therapy for life-threatening ventricular arrhythmias * Grade 3 sensory or grade 1 painful peripheral neuropathy * Known hypersensitivity to bortezomib, boron or mannitol * Cardiac syncope, uncompensated New York Heart Association (NYHA) Class 3 or 4 congestive heart failure or troponin T \> 0.1 ng/mL

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With a Confirmed Hematologic ResponseDuration of treatment (up to 12 cycles/months)Response that was confirmed on 2 consecutive evaluations during treatment. Complete Response(CR): Complete disappearance of M-protein from serum and urine on immunofixation, normalization of Free Light Chain (FLC) ratio and \<5% plasma cells in bone marrow. Very Good Partial Response(VGPR): \>=90% reduction in serum M-component; Urine M-Component \<=100 mg per 24 hours. Partial Response(PR): \>=50% reduction in serum M-component and/or Urine M-Component \>=90% reduction or \<200 mg per 24 hours; or \>=50% decrease in difference between involved and uninvolved FLC levels.

Secondary

MeasureTime frameDescription
Number of Participants With Treatment Related Adverse Events.Duration on treatment (up to 12 cycles/months)Adverse events (AE) that are classified as either possibly, probably, or definitely related to study treatment according to the National Cancer Institute Common Toxicity Criteria for Adverse Events (NCI CTCAE version 3.0). The maximum grade for each type of AE will be recorded for each patient. Grade refers to the severity of the AE. Grade 1: Mild AE, Grade 2: Moderate AE, Grade 3: Severe AE, Grade 4: Life-threatening or disabling AE, Grade 5: Death related AE Adverse events will be assessed using NCI Common Toxicity Criteria for Adverse Effects (CTCAE) v3.0.
Number of Participants With an Organ Response.Duration on treatment (up to 12 cycles/months)The number of patients that acheived a response in an affected organ.
Overall SurvivalDuration of Study (up to 5 years)Survival time is defined as the time from registration to death due to any cause.
Time to Disease ProgressionDuration of Study (up to 5 years)Time to disease progression is defined as the time from registration to the earliest date of documented disease progression. If a patient dies without a documentation of disease progression the patient will be considered to have had tumor progression at the time of their death
Duration of ResponseDuration of Study (up to 5 years)Duration of response will be calculated from the date of first evidence of response until the date of progression in the subset of patients with confirmed hematologic responses.

Countries

United States

Participant flow

Participants by arm

ArmCount
Bortez/Cyc/Dex
Bortezomib IV on days 1, 8, and 15, oral cyclophosphamide and oral dexamethasone once daily on days 1, 8, 15, and 22.
2
Total2

Baseline characteristics

CharacteristicBortez/Cyc/Dex
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
2 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
Age, Continuous69 years
Prior Treatment6.5 Prior Treatments
Region of Enrollment
United States
2 participants
Sex: Female, Male
Female
2 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
2 / 2
serious
Total, serious adverse events
1 / 2

Outcome results

Primary

Number of Participants With a Confirmed Hematologic Response

Response that was confirmed on 2 consecutive evaluations during treatment. Complete Response(CR): Complete disappearance of M-protein from serum and urine on immunofixation, normalization of Free Light Chain (FLC) ratio and \<5% plasma cells in bone marrow. Very Good Partial Response(VGPR): \>=90% reduction in serum M-component; Urine M-Component \<=100 mg per 24 hours. Partial Response(PR): \>=50% reduction in serum M-component and/or Urine M-Component \>=90% reduction or \<200 mg per 24 hours; or \>=50% decrease in difference between involved and uninvolved FLC levels.

Time frame: Duration of treatment (up to 12 cycles/months)

ArmMeasureGroupValue (NUMBER)
Bortez/Cyc/DexNumber of Participants With a Confirmed Hematologic ResponseComplete Response (CR)0 participants
Bortez/Cyc/DexNumber of Participants With a Confirmed Hematologic ResponseVery Good Partial Response (VGPR)0 participants
Bortez/Cyc/DexNumber of Participants With a Confirmed Hematologic ResponsePartial Response (PR)0 participants
Secondary

Duration of Response

Duration of response will be calculated from the date of first evidence of response until the date of progression in the subset of patients with confirmed hematologic responses.

Time frame: Duration of Study (up to 5 years)

Population: Neither participant achieved a response. Therefore, no duration of response calculation was performed.

Secondary

Number of Participants With an Organ Response.

The number of patients that acheived a response in an affected organ.

Time frame: Duration on treatment (up to 12 cycles/months)

ArmMeasureValue (NUMBER)
Bortez/Cyc/DexNumber of Participants With an Organ Response.0 participants
Secondary

Number of Participants With Treatment Related Adverse Events.

Adverse events (AE) that are classified as either possibly, probably, or definitely related to study treatment according to the National Cancer Institute Common Toxicity Criteria for Adverse Events (NCI CTCAE version 3.0). The maximum grade for each type of AE will be recorded for each patient. Grade refers to the severity of the AE. Grade 1: Mild AE, Grade 2: Moderate AE, Grade 3: Severe AE, Grade 4: Life-threatening or disabling AE, Grade 5: Death related AE Adverse events will be assessed using NCI Common Toxicity Criteria for Adverse Effects (CTCAE) v3.0.

Time frame: Duration on treatment (up to 12 cycles/months)

ArmMeasureGroupValue (NUMBER)
Bortez/Cyc/DexNumber of Participants With Treatment Related Adverse Events.Grade 1-22 participants
Bortez/Cyc/DexNumber of Participants With Treatment Related Adverse Events.Grade 3-40 participants
Bortez/Cyc/DexNumber of Participants With Treatment Related Adverse Events.Grade 50 participants
Secondary

Overall Survival

Survival time is defined as the time from registration to death due to any cause.

Time frame: Duration of Study (up to 5 years)

ArmMeasureValue (MEDIAN)
Bortez/Cyc/DexOverall Survival1.45 Months
Secondary

Time to Disease Progression

Time to disease progression is defined as the time from registration to the earliest date of documented disease progression. If a patient dies without a documentation of disease progression the patient will be considered to have had tumor progression at the time of their death

Time frame: Duration of Study (up to 5 years)

ArmMeasureValue (MEDIAN)
Bortez/Cyc/DexTime to Disease Progression1.45 Months

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026