A Study to Evaluate Dara-CyBorD in Previously Untreated and Relapsed Subjects With Multiple Myeloma

Study Overview
=================
Brief Summary
-----------------
The purpose of this study is to evaluate complete response plus (+) very good partial response (CR+VGPR) rate following 4 cycles of induction therapy of daratumumab in combination with cyclophosphamide, bortezomib, and dexamethasone (Dara-CyBorD), in previously untreated subjects, and in relapsed subjects with multiple myeloma, as defined by the International Myeloma Working Group (IMWG) criteria.

Official Title
-----------------
Daratumumab Plus Cyclophosphamide, Bortezomib and Dexamethasone (Dara-CyBorD) in Previously Untreated and Relapsed Subjects With Multiple Myeloma

Conditions
-----------------
Multiple Myeloma

Intervention / Treatment
-----------------
* Drug: Daratumumab
* Drug: Cyclophosphamide
* Drug: Bortezomib
* Drug: Dexamethasone


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: Subjects with documented multiple myeloma (MM) as defined by the International Myeloma Working Group (IMWG) 2015 criteria: Clonal bone marrow plasma cells greater than or equal to (>=) 10 percent (%) or biopsy-proven bony or extramedullary plasmacytoma and any one or more of the following CRAB (calcium level, renal dysfunction, anemia, and destructive bone lesions) features and myeloma defining events as in the protocol Subjects with previously untreated myeloma or relapsed myeloma with one prior line of therapy including an induction regimen which may be followed by autologous stem cell transplantation and single agent maintenance therapy. For previously untreated subjects an emergency course of steroids (defined as no greater than 40 milligram (mg) of dexamethasone, or equivalent per day for a maximum of 4 days) is permitted. In addition, radiation therapy is permitted prior to study entry, during screening, and during Cycles 1-2 of study treatment as needed for lytic bone disease Have an Eastern Cooperative Oncology Group (ECOG) performance status score of 0, 1, or 2 A woman of childbearing potential must have 2 negative serum (beta (β) human chorionic gonadotropin) or urine pregnancy tests during screening, the first one within 28 days prior to the first dose of study drug and the second within 24 hours prior to the first dose of study drug A man who is sexually active with a woman of childbearing potential and has not had a vasectomy must agree to use a barrier method of birth control example, either condom with spermicidal foam/gel/film/cream/suppository or partner with occlusive cap (diaphragm or cervical/vault caps) with spermicidal foam/gel/film/cream/suppository, and all men must also not donate sperm during the study and for 3 months after receiving the last dose of study drug Exclusion Criteria: Refractory to any proteasome inhibitor (PI) or the combination of PI and immunomodulatory drug (IMiD) agents (such as lenalidomide), defined as failure to respond or progression within 60 days of the end of PI therapy Exhibiting clinical signs of or has a known history of meningeal or central nervous system involvement by multiple myeloma Has known chronic obstructive pulmonary disease with a forced expiratory volume in 1 second (FEV1) less than (<) 50 percent (%) of predicted normal Has known moderate or severe persistent asthma within the past 2 years, or currently has uncontrolled asthma of any classification Is known to be seropositive for human immunodeficiency virus, known to have hepatitis B surface antigen positivity, or known to have a history of hepatitis C

Ages Eligible for Study
-----------------
Minimum Age: 18 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
No

Study Plan
=================
How is the study designed?
-----------------

Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Dara-CyBorD<br>Subjects will receive Daratumumab along with Cyclophosphamide, Bortezomib and Dexamethasone (Dara-CyBorD) as induction on a 28-day cycle length and Daratumab and Dexamethasone on Day 1 of each cycle for 12 cycles as maintenance therapy. | Drug: Daratumumab<br>* For induction therapy cycle 1 day 1 and day 2 doses of daratumumab will be 8 milligram/kilogram (mg/kg). Starting cycle 1 week 2 until the completion of week 8 of daratumumab patients will receive 16 mg/kg Intravenously (IV) weekly. Starting week 9 until the completion of week 24 therapy daratumumab will be administered every other week at 16 mg/kg IV. Starting week 25 and beyond for induction therapy daratumumab will be given once every 4 weeks.<br>Drug: Cyclophosphamide<br>* Subjects will receive 4 to 8 cycles of oral cyclophosphamide 300 milligram per meter square (mg/m^2 ) on Days 1, 8, 15, and 22 for every 28 days.<br>Drug: Bortezomib<br>* Subjects will receive 4 to 8 cycles of Bortezomib 1.5 mg/m2 subcutaneous (SC) on Days 1, 8, and 15 for every 28 days.<br>Drug: Dexamethasone<br>* Subjects will be given corticosteroids (Dexamethasone) as pre-infusion therapy prior to daratumumab and for the first 8 cycles will also receive post-infusion corticosteroids (Dexamethasone).<br>|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of Participants Who Achieved Complete Response (CR) or Very Good Partial Response (VGPR) | Percentage of participants who achieved CR or VGPR (as per International Myeloma Working Group [IMWG] criteria) was reported. CR: negative immunofixation on the serum and urine and disappearance of any soft tissue plasmacytomas and less than (<) 5 percent (%) plasma cells (PC) in bone marrow. VGPR: serum and urine M-protein detectable by immunofixation but not on electrophoresis or greater than or equal to (>=) 90% reduction in serum M-protein plus urine M-protein level < 100 milligram per 24 hours (mg/24hours). | After 4 cycles of Induction (Approximately 4 months) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Overall Response Rate (ORR) | ORR: percentage of participants achieved PR or better (PR,VGPR,CR,sCR) per IMWG. CR:negative immunofixation on serum, urine, disappearance of soft tissue plasmacytomas,<5% PCs in bone marrow(BM). sCR:CR plus normal FLC ratio,absence of clonal cells in BM by immunohistochemistry, immunofluorescence. VGPR:Serum, urine M-protein detectable by immunofixation but not on electrophoresis or >=90% reduction in serum M-protein plus urine M-protein level <100 mg/24hours. PR:>=50% reduction of serum M-protein and reduction in 24hours urinary M-protein by >=90% or to <200mg/24hours. If serum, urine M-protein unmeasurable, a>=50% decrease in difference involved and uninvolved FLC levels required in place of M-protein criteria. If serum, urine M-protein not measurable, serum free light assay is not measurable,>=50% reduction in PCs required in place of M-protein,provided baseline bone marrow PCs% >=30%, if present at baseline, a >=50% reduction in size of soft tissue plasmacytomas is also required. | After 4 Cycles of Induction (4 months), at End of Induction (4 to 8 months) and at the End of Maintenance (12 months) | 
| Time to Very Good Partial Response (VGPR) or Better | Time to VGPR or Better response was defined as duration from the date of first dose (start of induction) to the date of initial documentation of the response (VGPR or better) which was confirmed by a repeated measurement as required by the IMWG criteria. VGPR is defined by IMWG criteria as serum and urine M-protein detectable by immunofixation but not on electrophoresis or greater than or equal to (>=) 90 % reduction in serum M-protein plus urine M-protein level < 100 milligram/24 hours (mg/24 hours). | Up to 36 months | 
| Time to Partial Response (PR) or Better | Time to PR or Better response was defined as duration from the date of first dose (start of induction) to the date of initial documentation of the response (PR or better) which was confirmed by a repeated measurement as required by the IMWG criteria. PR is defined as per IMWG criteria as >= 50% reduction of serum M-protein and reduction in 24 hours urinary M-protein by >= 90% or to < 200 mg/24hours. If the serum and urine M-protein are unmeasurable, a>= 50% decrease in the difference between involved and uninvolved Free light chain (FLC) levels is required in the place of the M-protein criteria. If serum and urine M-protein are not measurable, and serum free light assay is also not measurable, >=50% reduction in plasma cells is required in place of M-protein, provided baseline bone marrow plasma cells percentage was >=30%. In addition to the above listed criteria, if present at baseline, a >= 50% reduction in the size of soft tissue plasmacytomas is also required. | Up to 12 months | 
| Duration of Response (DOR) | DOR was defined for participants with a confirmed response (PR or better) as the duration from the date of initial documentation of a response (PR or better) according to the IMWG criteria to the date of first documented evidence of progressive disease according to the IMWG criteria or death due to progressive disease. PR:>=50% reduction of serum M-protein and reduction in 24hours urinary M-protein by >=90% or to <200 mg/24hours. If serum and urine M-protein are unmeasurable, a >=50% decrease in difference involved and uninvolved FLC levels required in place of M-protein criteria. If serum and urine M-protein are not measurable, and serum free light assay is also not measurable, >=50% reduction in PCs is required in place of M-protein, provided baseline bone marrow PCs % was >=30%. In addition to the above criteria, if present at baseline, a >=50% reduction in the size of soft tissue plasmacytomas is also required. | Up to 36 months | 
| Progression Free Survival (PFS) | PFS: duration from date of first dose (start of induction) to date of first documented evidence of progressive disease (PD) based on computerized algorithm per IMWG criteria or death due to any cause, whichever occurred first. PD: 25% increase from lowest response value in one of following: Serum and urine M-component (absolute increase >=0.5 g/dL and >=200 mg/24 hours respectively);Only participants without measurable serum and urine M-protein levels: difference between involved and uninvolved FLC levels (absolute increase>10 mg/dL);Only participants without measurable serum and urine M-protein levels, without measurable disease by FLC levels, bone marrow PC% (absolute % >=10%); Bone marrow PC%: absolute% >10%; Definite development of new bone lesions/soft tissue plasmacytomas/definite increase in size of existing bone lesions/soft tissue plasmacytomas, Development of hypercalcemia (corrected serum calcium >11.5 mg/dL) that can be attributed solely to PC proliferative disorder. | Up to 36 months | 
| Time to Disease Progression (TTP) | TTP was defined as the time between the date of first dose (start of induction) and the date of first documented evidence of confirmed PD, as defined in the IMWG response criteria. PD per IMWG criteria: Increase of 25% from lowest response value in one of following: Serum and urine M-component (absolute increase >=0.5 g/deciliter (dL) and >=200 mg/24 hours respectively); Only participants without measurable serum and urine M-protein levels: difference between involved and uninvolved FLC levels (absolute increase>10 mg/dL); Only participants without measurable serum and urine M-protein levels, without measurable disease by FLC levels, bone marrow PC% (absolute % >=10%); Bone marrow PC%: absolute% >10%; Definite development of new bone lesions/soft tissue plasmacytomas/definite increase in size of existing bone lesions/soft tissue plasmacytomas and Development of hypercalcemia (corrected serum calcium >11.5 mg/dL) that can be attributed solely to the PC proliferative disorder. | Approximately 15 months | 
| Overall Survival (OS) | Overall survival (OS) was measured from the date of first dose (start of induction) to the date of death due to any cause. | Up to 36 months | 
| Percentage of Participants With Treatment Emergent-Adverse Event | An adverse event (AE) was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. Treatment-emergent were events between administration of study drug and approximately up to 36 months that were absent before treatment or that worsened relative to pre-treatment state. | Up to 36 months |