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A Study of the Safety and Efficacy of CNTO 328 and Bortezomib to Bortezomib Alone in Patients With Relapsed or Refractory Multiple Myeloma

A Phase 2, Randomized, Double-blind, Placebo-controlled Study Comparing the Combination of CNTO 328 (Anti-IL-6 Monoclonal Antibody) and Velcade Versus Velcade Alone in Subjects With Relapsed or Refractory Multiple Myeloma

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00401843
Enrollment
307
Registered
2006-11-22
Start date
2006-11-28
Completion date
2019-09-24
Last updated
2019-11-19

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

Conditions

Multiple Myeloma

Keywords

multiple myeloma, Monoclonal Antibody, Intravenous, refractory or relapsed multiple myeloma, velcade, bortezomib

Brief summary

The purpose of Part 1 of the study is to determine the safety of the combination of Siltuximab (CNTO 328) and bortezomib (Velcade). The purpose of Part 2 of the study is to compare the length of progression free survival for those patients given CNTO 328 and bortezomib to those patients given bortezomib alone.

Detailed description

The purpose of this study is to see what effects CNTO 328 has on relapsed or refractory multiple myeloma. The study drug, CNTO 328, is a chimeric (part mouse) antibody (small protein that is important for fighting infection).CNTO 328 blocks a small protein called Interleukin 6 (IL-6). IL-6 is made naturally by your body, and at normal levels is important for inflammatory response. High levels of IL-6 can help cancer cells grow and interfere with chemotherapy drugs killing cancer cells. Cancer-related sickness such as cachexia (weight loss), bone resorption (weakening of your bones), and depression have been linked to high levels of IL-6. CNTO 328 has been shown to slow down tumor growth or shrink tumors when tested in animals. In other clinical trials, over 100 patients have received CNTO 328. There are studies ongoing in participants with kidney cancer, hematologic malignancies (blood cancers such as multiple myeloma), and prostate cancer, to see if CNTO 328 is safe and to see what effects it has on these types of cancer. At this time, it is unknown what effect CNTO 328 has had on the participants' cancer. Bortezomib is a type of drug known as a proteasome inhibitor. A proteasome is a substance that is found in every cell and it is there to help to break down other substances ('proteins') and has a role in the way cells divide. If the proteasome is inhibited, it cannot perform its function in the cell, and if a cell cannot divide it dies. Over 8000 patients with multiple myeloma and other types of cancer have been treated with bortezomib. Bortezomib has been extensively studied in patients with previously treated multiple myeloma. Based on its established activity in pretreated multiple myeloma, bortezomib is registered in the United States and in Europe for the treatment of multiple myeloma patients who have received at least two prior therapies and have demonstrated disease progression on the last therapy. Bortezomib is currently also being studied in several other cancer types.This study consists of two parts. The purpose of Part 1 is to determine the safety of CNTO 328 and bortezomib when given together as a treatment. The purpose of Part 2 is to compare the safety and effects (good and bad) of the combination of CNTO 328 and bortezomib to the safety and effects of bortezomib alone. About 20 patients will take part in the first part of the study. About 270 patients will take part in the second part of the study at approximately 70 sites in the US, Canada, and Europe. Patients will be in the study for about 12 months, with a follow-up period of around 9 months. The study is divided into four different phases: Screening phase-which lasts up to 4 weeks. During this phase the study doctor will perform tests to see if the patient can participate in the study.Treatment phase-which may last up to 4 cycles of 42 days each during which the patient will be treated with CNTO 328 and bortezomib. Maintenance phase-If the patient benefits from the therapy in the treatment phase, the patient will continue to receive CNTO 328 and bortezomib, but now in cycles of 35 days each. Follow up phase, this includes an end of treatment visit 4 weeks after the patient's last infusion and follow up visits every three months until the patient starts a new anti-cancer treatment. CNTO 328 6mg/kg ( 6 milligrams per kilogram of body weight) will be given intravenously (into the vein) over 2 hours once every 2 weeks. Patients who respond with stable disease or better may receive additional doses. Bortezomib will be given IV (into the vein) at 1.3 mg/m2 over 3-5 seconds twice a week for 2 weeks followed by 1 week of rest.

Interventions

BIOLOGICALSiltuximab

Siltuximab 6 mg/kg will be administered as intravenous infusion once every 2 weeks during cycle 1 in Part 1. Siltuximab 6 mg/kg will be administered as intravenous infusion once every 2 weeks during 42-day Treatment Phase and 35-day Maintenance Phase in Part 2.

DRUGBortezomib

Bortezomib 1.3 mg/m\^2 will be administered as intravenous bolus once every 2 weeks during cycle 1 in Part 1. Bortezomib 1.3 mg/m\^2 will be administered as intravenous bolus on Days 1, 4, 8, 11, followed by a 10-day rest period; and on Days 22, 25, 29, and 32 followed by a 10-day rest period during 42-day treatment phase in Part 2. Bortezomib 1.3 mg/m2 will be administered as intravenous bolus on Days 1, 8, 15, 22 followed by a 13-day rest period (cycle Days 23 to 35) during 35-day Maintenance Phase in Part 2.

DRUGPlacebo

Matching placebo will be administered as intravenous infusion once every 2 weeks during 42-day treatment phase and 35-day maintenance phase in Part 2.

DRUGDexamethasone

Dexamethasone tablet will be administered in this study at the first occurrence of documented disease progression or if bortezomib was discontinued due to intolerable toxicity. Dexamethasone 40 mg/day will be administered on days 1-4, 9-12, and 17-20 for four 28-day cycles then 40 mg/day for Days 1-4 for all subsequent cycles in treatment phase and maintenance phase of Part 2.

Sponsors

Janssen Research & Development, LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Caregiver)

Eligibility

Sex/Gender
ALL
Age
18 Years to 99 Years
Healthy volunteers
No

Inclusion criteria

* Measurable secretory disease defined as either serum monoclonal paraprotein, (M-protein) greater than or equal to (\>=)1 gram per deciliter (g/dL) or urine monoclonal (light chain) protein (\> 200 mg/24 hours) * Documented disease progression after at least 1 prior line of therapy but no more than 3 or have had no response to previous treatment (primary refractory disease) * ECOG performance status score of less than or equal to (\<=) 2 * Adequate bone marrow, liver, and renal function

Exclusion criteria

* No prior treatment with bortezomib * Not Refractory to high-dose dexamethasone * Not \>= Grade 2 peripheral neuropathy * Have not received an allogeneic bone marrow or allogeneic peripheral blood stem cell transplant * No prior or concomitant malignancy (other than multiple myeloma) except adequately treated basal cell or squamous cell carcinoma of the skin, carcinoma in situ of the cervix, or other cancer for which the patient has been disease-free for \<= 3 years

Design outcomes

Primary

MeasureTime frameDescription
Progression-free SurvivalRandomization until disease progression or death, which ever occured first (maximum up to 5 years)Progression-free survival was defined as the time interval between randomization and the first documented sign of disease progression (including relapse from complete response \[CR\]) by the European Bone Marrow Transplant (EBMT) criteria or death, whichever occurred first. Relapse from CR requires at least 1 of the following: Reappearance of serum or urinary M-protein on immunofixation or routine electrophoresis, confirmed by at least 1 further investigation and excluding oligoclonal immune reconstitution; Greater than or equal to (\>=) 5 percent (%) plasma cells either in a bone marrow aspirate or on trephine bone biopsy; Development of new lytic bone lesions or soft tissue plasmacytomas or definite increase in the size of residual bone lesions (development of a compression fracture does not exclude continued response and may not indicate progression); Development of hypercalcemia not attributable to any other cause.
Number of Participants With Adverse Events (AEs) or Serious Adverse Events (SAEs)up to 5 yearsAn AE is any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. An SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; lifethreatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.

Secondary

MeasureTime frameDescription
Percentage of Participants With Best Confirmed Response of Complete Response (CR) or Partial Response (PR) (Overall Response Rate)Randomization until disease progression (maximum up to 5 years)Overall response rate was defined as best response (CR/PR confirmed) for a participant recorded from first administration of study agent or randomization (Part 2) until disease progression/recurrence and before dexamethasone was added. CR: Absence of original M-protein in serum/urine by immunofixation,maintained for minimum of 6 weeks. The presence of oligoclonal bands consistent with oligoclonal immune reconstitution does not exclude CR; Less than 5 percent (%) plasma cells in bone marrow aspirate and also on trephine bone biopsy if biopsy is performed; No increase in size/number of lytic bone lesions; Disappearance of soft tissue plasmacytomas. PR: Greater than or equal to (\>=) 50% reduction in level of serum M-protein, maintained for minimum of 6 weeks. Reduction in 24 hour urinary light chain excretion either by \>= 90% or to \< 200 mg, maintained for minimum of 6 weeks; \>= 50% reduction in size of soft tissue plasmacytomas; No increase in size/number of lytic bone lesions.
Percentage of Participants With Confirmed Complete Response (CR Rate)Randomization until disease progression (maximum up to 5 years)CR rate was defined as the percentage of participants who achieved a confirmed CR before dexamethasone was added. CR: Absence of original M-protein in serum/urine by immunofixation,maintained for minimum of 6 weeks. The presence of oligoclonal bands consistent with oligoclonal immune reconstitution does not exclude CR; Less than 5 percent (%) plasma cells in bone marrow aspirate and also on trephine bone biopsy if biopsy is performed; No increase in size/number of lytic bone lesions; Disappearance of soft tissue plasmacytomas.
Overall Survivalup to 5 yearsOverall survival was defined as the interval between the first administration of study agent or randomization (Part 2) and the participant's death from any cause. For participants with unknown survival status as of the data cut-off date, overall survival was censored at the last date known to be alive.

Countries

Belgium, Brazil, Bulgaria, Canada, Czechia, France, Germany, Greece, Hungary, Netherlands, Poland, Portugal, Romania, Russia, Slovakia, Spain, United Kingdom, United States

Participant flow

Pre-assignment details

144 participants were randomized to bortezomib plus placebo group; of which, 3 participants received incorrect treatment (bortezomib plus siltuximab).

Participants by arm

ArmCount
Part 1 - Bortezomib + Siltuximab
Siltuximab 6 milligram per kilogram (mg/kg) will be administered as intravenous infusion once every 2 weeks along with bortezomib 1.3 milligram per square meter (mg/m\^2) during cycle 1.
21
Part 2 - Bortezomib + Placebo
Bortezomib 1.3 mg/m\^2 will be administered as intravenous bolus on Days 1, 4, 8, 11, followed by a 10- day rest period; and on Days 22, 25, 29, and 32 followed by a 10-day rest period along with matching placebo administered as intravenous infusion once every 2 weeks during 42-day treatment phase. Bortezomib 1.3 mg/m\^2 will be administered as intravenous bolus on Days 1, 8, 15, 22 followed by a 13- day rest period (cycle Days 23 to 35) along with matching placebo once every 2 weeks during 35-day Maintenance Phase. Dexamethasone tablet will be administered at first occurrence of documented disease progression or if bortezomib was discontinued due to intolerable toxicity. Dexamethasone 40 milligram per day (mg/day) will be administered on days 1-4, 9-12, and 17-20 for four 28-day cycles then 40 mg/day for Days 1-4 for all subsequent cycles.
144
Part 2 - Bortezomib + Siltuximab
Bortezomib 1.3 mg/m\^2 will be administered as intravenous bolus on Days 1, 4, 8, 11, followed by a 10- day rest period; and on Days 22, 25, 29, and 32 followed by a 10-day rest period along with Siltuximab administered as intravenous infusion once every 2 weeks during 42-day treatment phase. Bortezomib 1.3 mg/m\^2 will be administered as intravenous bolus on Days 1, 8, 15, 22 followed by a 13-day rest period (cycle Days 23 to 35) along with Siltuximab administered as intravenous infusion once every 2 weeks for 35-day Maintenance Phase. Dexamethasone tablet will be administered at first occurrence of documented disease progression or if bortezomib was discontinued due to intolerable toxicity. Dexamethasone 40 mg/day will be administered on days 1-4, 9-12, and 17-20 for four 28-day cycles then 40 mg/day for Days 1-4 for all subsequent cycles.
142
Total307

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAchieved Complete Response1511
Overall StudyAdverse Event72627
Overall StudyDeath0810
Overall StudyDisease progression106049
Overall StudyEnd of Study112
Overall StudyLost to Follow-up002
Overall StudyOther Unspecified035
Overall StudyPhysician Decision01610
Overall StudyProtocol Violation001
Overall StudyRandomized but not Treated023
Overall StudyReceived incorrect treatment030
Overall StudyWithdrawal by Subject155
Overall StudyWithdrawal of consent to study agent11517

Baseline characteristics

CharacteristicPart 1 - Bortezomib + SiltuximabTotalPart 2 - Bortezomib + SiltuximabPart 2 - Bortezomib + Placebo
Age, Continuous66 years
STANDARD_DEVIATION 10.76
63.1 years
STANDARD_DEVIATION 9.6
63.5 years
STANDARD_DEVIATION 9.32
62.3 years
STANDARD_DEVIATION 9.65
Region of Enrollment
Belgium
0 participants3 participants1 participants2 participants
Region of Enrollment
Brazil
0 participants10 participants4 participants6 participants
Region of Enrollment
Bulgaria
0 participants26 participants10 participants16 participants
Region of Enrollment
Canada
3 participants12 participants5 participants4 participants
Region of Enrollment
Czech Republic
0 participants24 participants11 participants13 participants
Region of Enrollment
France
7 participants19 participants7 participants5 participants
Region of Enrollment
Germany
0 participants2 participants1 participants1 participants
Region of Enrollment
Greece
0 participants10 participants5 participants5 participants
Region of Enrollment
Hungary
0 participants20 participants10 participants10 participants
Region of Enrollment
Netherlands
2 participants11 participants5 participants4 participants
Region of Enrollment
Poland
0 participants30 participants11 participants19 participants
Region of Enrollment
Portugal
0 participants9 participants4 participants5 participants
Region of Enrollment
Romania
0 participants13 participants5 participants8 participants
Region of Enrollment
Russian Federation
0 participants48 participants27 participants21 participants
Region of Enrollment
Spain
2 participants17 participants10 participants5 participants
Region of Enrollment
United Kingdom
0 participants27 participants15 participants12 participants
Region of Enrollment
United States
7 participants26 participants11 participants8 participants
Sex: Female, Male
Female
13 Participants142 Participants70 Participants59 Participants
Sex: Female, Male
Male
8 Participants165 Participants72 Participants85 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
21 / 21135 / 139140 / 142
serious
Total, serious adverse events
10 / 2144 / 13947 / 142

Outcome results

Primary

Number of Participants With Adverse Events (AEs) or Serious Adverse Events (SAEs)

An AE is any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. An SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; lifethreatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.

Time frame: up to 5 years

Population: The safety population included all participants who received at least 1 dose of study treatment in Part 1 or Part 2. Participants were analyzed as per actual treatment received.

ArmMeasureGroupValue (NUMBER)
Part 2 - Bortezomib + PlaceboNumber of Participants With Adverse Events (AEs) or Serious Adverse Events (SAEs)Serious Adverse Events (SAEs)10 participants
Part 2 - Bortezomib + PlaceboNumber of Participants With Adverse Events (AEs) or Serious Adverse Events (SAEs)Adverse Events (AEs)21 participants
Part 2 - Bortezomib + SiltuximabNumber of Participants With Adverse Events (AEs) or Serious Adverse Events (SAEs)Serious Adverse Events (SAEs)44 participants
Part 2 - Bortezomib + SiltuximabNumber of Participants With Adverse Events (AEs) or Serious Adverse Events (SAEs)Adverse Events (AEs)138 participants
Part 2 - Bortezomib + SiltuximabNumber of Participants With Adverse Events (AEs) or Serious Adverse Events (SAEs)Serious Adverse Events (SAEs)47 participants
Part 2 - Bortezomib + SiltuximabNumber of Participants With Adverse Events (AEs) or Serious Adverse Events (SAEs)Adverse Events (AEs)140 participants
Primary

Progression-free Survival

Progression-free survival was defined as the time interval between randomization and the first documented sign of disease progression (including relapse from complete response \[CR\]) by the European Bone Marrow Transplant (EBMT) criteria or death, whichever occurred first. Relapse from CR requires at least 1 of the following: Reappearance of serum or urinary M-protein on immunofixation or routine electrophoresis, confirmed by at least 1 further investigation and excluding oligoclonal immune reconstitution; Greater than or equal to (\>=) 5 percent (%) plasma cells either in a bone marrow aspirate or on trephine bone biopsy; Development of new lytic bone lesions or soft tissue plasmacytomas or definite increase in the size of residual bone lesions (development of a compression fracture does not exclude continued response and may not indicate progression); Development of hypercalcemia not attributable to any other cause.

Time frame: Randomization until disease progression or death, which ever occured first (maximum up to 5 years)

Population: Intent-to-treat (ITT) population included all participants randomized in Part 2. Participants were analyzed as per initial randomization.

ArmMeasureValue (MEDIAN)
Part 2 - Bortezomib + PlaceboProgression-free Survival232 days
Part 2 - Bortezomib + SiltuximabProgression-free Survival245 days
Secondary

Overall Survival

Overall survival was defined as the interval between the first administration of study agent or randomization (Part 2) and the participant's death from any cause. For participants with unknown survival status as of the data cut-off date, overall survival was censored at the last date known to be alive.

Time frame: up to 5 years

Population: ITT population included all participants randomized in Part 2. Participants were analyzed as per initial randomization.

ArmMeasureValue (MEDIAN)
Part 2 - Bortezomib + PlaceboOverall Survival1121 days
Part 2 - Bortezomib + SiltuximabOverall Survival937 days
Secondary

Percentage of Participants With Best Confirmed Response of Complete Response (CR) or Partial Response (PR) (Overall Response Rate)

Overall response rate was defined as best response (CR/PR confirmed) for a participant recorded from first administration of study agent or randomization (Part 2) until disease progression/recurrence and before dexamethasone was added. CR: Absence of original M-protein in serum/urine by immunofixation,maintained for minimum of 6 weeks. The presence of oligoclonal bands consistent with oligoclonal immune reconstitution does not exclude CR; Less than 5 percent (%) plasma cells in bone marrow aspirate and also on trephine bone biopsy if biopsy is performed; No increase in size/number of lytic bone lesions; Disappearance of soft tissue plasmacytomas. PR: Greater than or equal to (\>=) 50% reduction in level of serum M-protein, maintained for minimum of 6 weeks. Reduction in 24 hour urinary light chain excretion either by \>= 90% or to \< 200 mg, maintained for minimum of 6 weeks; \>= 50% reduction in size of soft tissue plasmacytomas; No increase in size/number of lytic bone lesions.

Time frame: Randomization until disease progression (maximum up to 5 years)

Population: Response-evaluable population:all participants in Part 2 with confirmed diagnosis of multiple myeloma and measurable,secretory disease:either serum M-protein 1 \>= gram per deciliter(g/dL)/urine M-protein \>200 mg per 24 hours,at study entry;had at least 1 study agent administration;at least 1 post-baseline disease assessment before dexamethasone.

ArmMeasureValue (NUMBER)
Part 2 - Bortezomib + PlaceboPercentage of Participants With Best Confirmed Response of Complete Response (CR) or Partial Response (PR) (Overall Response Rate)46.7 percentage of participants
Part 2 - Bortezomib + SiltuximabPercentage of Participants With Best Confirmed Response of Complete Response (CR) or Partial Response (PR) (Overall Response Rate)55.0 percentage of participants
Secondary

Percentage of Participants With Confirmed Complete Response (CR Rate)

CR rate was defined as the percentage of participants who achieved a confirmed CR before dexamethasone was added. CR: Absence of original M-protein in serum/urine by immunofixation,maintained for minimum of 6 weeks. The presence of oligoclonal bands consistent with oligoclonal immune reconstitution does not exclude CR; Less than 5 percent (%) plasma cells in bone marrow aspirate and also on trephine bone biopsy if biopsy is performed; No increase in size/number of lytic bone lesions; Disappearance of soft tissue plasmacytomas.

Time frame: Randomization until disease progression (maximum up to 5 years)

Population: Response-evaluable population:all participants in Part 2 with confirmed diagnosis of multiple myeloma and measurable,secretory disease:either serum M-protein 1 \>= gram per deciliter(g/dL)/urine M-protein \>200 mg per 24 hours,at study entry;had at least 1 study agent administration;at least 1 post-baseline disease assessment before dexamethasone.

ArmMeasureValue (NUMBER)
Part 2 - Bortezomib + PlaceboPercentage of Participants With Confirmed Complete Response (CR Rate)7.3 percentage of participants
Part 2 - Bortezomib + SiltuximabPercentage of Participants With Confirmed Complete Response (CR Rate)10.7 percentage of participants

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