Title

A Study of KW-2478 in Combination With Bortezomib in Subjects With Relapsed and/or Refractory Multiple Myeloma
An Open Label, Dose Escalation, Multicenter Phase 1/2 Study of KW-2478 in Combination With Bortezomib in Subjects With Relapsed and/or Refractory Multiple Myeloma
  • Phase

    Phase 1/Phase 2
  • Study Type

    Interventional
  • Study Participants

    95
The purpose of this study is to assess the safety and benefits of the investigational study drug, KW-2478, when given with bortezomib (Velcade®), a drug approved for the treatment of Multiple Myeloma (MM).

The primary objectives:

To establish the safety, tolerability, and recommended Phase II dose (RP2D) of KW-2478 in combination with bortezomib (Phase I);
To assess the overall response rate (ORR) when subjects with advanced MM are treated (Phase II).

The secondary objectives:

To characterize the Pharmacokinetic (PK) and Pharmacodynamic (PD) of KW-2478 with bortezomib (Phase I only);
To evaluate for preliminary evidence of efficacy (Phase I);
To determine progression free survival (PFS) and duration of response of KW-2478 with bortezomib (Phase II).
This is a multicenter, open label, dose escalation, Phase I / II study in subjects with relapsed and/or refractory MM. Up to 24 subjects to be enrolled in the Phase I to determine the RP2D. Up to 77 additional evaluable subjects to be enrolled in Phase II for a maximum up to 101 subjects treated in the study. Study centers in the USA and the UK will participate in Phase I and II. Centers in the Philippines will be participating in Phase II only. The planned enrollment period is 22 months and the planned study duration is 28 months.
Study Started
Mar 31
2010
Primary Completion
Nov 30
2013
Study Completion
Nov 30
2013
Results Posted
Nov 05
2014
Estimate
Last Update
Dec 16
2014
Estimate

Drug KW-2478

Administered Days 1, 4, 8 and 11 of a 21 day cycle

  • Other names: HSP90 Inhibitor

Drug Bortezomib

Administered on Days 1, 4, 8 and 11 of a 21 day cycle

  • Other names: Velcade

Phase 1: Cohort 1 Experimental

Cohort 1: KW 2478 130 mg/m^2 and Bortezomib 1.0 mg/m^2

Phase 1: Cohort 2 Experimental

Cohort 2: KW 2478 130 mg/m^2 and Bortezomib 1.3 mg/m^2

Phase 1: Cohort 3 Experimental

Cohort 3: KW 2478 175 mg/m^2 and Bortezomib 1.0 mg/m^2

Phase 1: Cohort 4 Experimental

Cohort 4: KW 2478 175 mg/m^2 and Bortezomib 1.3 mg/m^2

Phase 2 Experimental

KW 2478 175 mg/m^2 and Bortezomib 1.0 mg/m^2

Criteria

Accepts Healthy Volunteers: No

Inclusion Criteria:

Subjects with a confirmed diagnosis of Multiple Myeloma who have had one and no more than three prior regimens for MM to which they did not respond (failed) or from which they have relapsed.
Signed either an IRB or IEC approved informed consent
ECOG performance status of ≤ 2
Life expectancy of at least 3 months
M protein in either serum or urine, or free light chains if not measurable M protein in serum or urine, and clonal bone marrow plasma cells > 10%, and evidence of end organ damage
Adequate hematologic status, liver and renal function
Subjects of reproductive potential must agree to follow accepted pregnancy prevention methods during the study.

Exclusion Criteria:

No anti-cancer treatment for ≥ 4 weeks and no bortezomib treatment ≥ 60 days prior to receiving study drug
Any other severe, acute or chronic illness
No other prior or concurrent malignancy
No immunosuppressant therapy

Summary

Phase 1 and 2: KW-2478 and Bortezomib

Phase 1 Cohort 1: KW-2478 130 mg/m^2 and Bortezomib 1.0 mg/m^2

Phase 1 Cohort 2: KW-2478 130 mg/m^2 and Bortezomib 1.3 mg/m^2

Phase 1 Cohort 3: KW-2478 175 mg/m^2 and Bortezomib 1.0 mg/m^2

Phase 1 Cohort 4: KW-2478 175 mg/m^2 and Bortezomib 1.3 mg/m^2

Phase 2: KW-2478 175 mg/m^2 and Bortezomib 1.3 mg/m^2

All Events

Event Type Organ System Event Term Phase 1 and 2: KW-2478 and Bortezomib Phase 1 Cohort 1: KW-2478 130 mg/m^2 and Bortezomib 1.0 mg/m^2 Phase 1 Cohort 2: KW-2478 130 mg/m^2 and Bortezomib 1.3 mg/m^2 Phase 1 Cohort 3: KW-2478 175 mg/m^2 and Bortezomib 1.0 mg/m^2 Phase 1 Cohort 4: KW-2478 175 mg/m^2 and Bortezomib 1.3 mg/m^2 Phase 2: KW-2478 175 mg/m^2 and Bortezomib 1.3 mg/m^2

To Establish the Safety, Tolerability, and RP2D (Phase 1); To Assess the Overall Response Rate in Subjects With Advanced Multiple Myeloma (Phase 2).

The safety of KW-2478 was determined by reported TEAEs, observed DLTs, changes in PEs, vital sign measurements, ECGs, and laboratory analyses. The ORR, was defined as the best response over a specified number of cycles (calculated and summarized). Disease control rate (DCR) was defined as the best response over a specified number of cycles (calculated and summarized). Progression-free survival was defined as the time from the first day of treatment until the date of disease progression or death is first reported (calculated and summarized).

Phase 1 & 2: KW-2478 175 mg/m^2 and Bortezomib 1.3mg/m^2

Life Threatening TEAE

13.0
participants

Moderate (CTCAE 2) TEAE

22.0
participants

Related TEAE

88.0
participants

Serious Treatment-Emergent AE

48.0
participants

Severe (CTCAE 3) TEAE

54.0
participants

Subjects with Any DLT

1.0
participants

Subjects with Any TEAE

95.0
participants

Phase 1 Cohort 1: KW-2478 130 mg/m^2 and Bortezomib 1.0mg/m^2

Life Threatening TEAE

Moderate (CTCAE 2) TEAE

Related TEAE

3.0
participants

Serious Treatment-Emergent AE

2.0
participants

Severe (CTCAE 3) TEAE

3.0
participants

Subjects with Any DLT

Subjects with Any TEAE

3.0
participants

Phase 1 Cohort 2: KW-2478 130 mg/m^2 and Bortezomib 1.3mg/m^2

Life Threatening TEAE

1.0
participants

Moderate (CTCAE 2) TEAE

Related TEAE

3.0
participants

Serious Treatment-Emergent AE

3.0
participants

Severe (CTCAE 3) TEAE

2.0
participants

Subjects with Any DLT

Subjects with Any TEAE

3.0
participants

Phase 1 Cohort 3: KW-2478 175 mg/m^2 and Bortezomib 1.0mg/m^2

Life Threatening TEAE

Moderate (CTCAE 2) TEAE

Related TEAE

2.0
participants

Serious Treatment-Emergent AE

3.0
participants

Severe (CTCAE 3) TEAE

2.0
participants

Subjects with Any DLT

1.0
participants

Subjects with Any TEAE

3.0
participants

Phase 1 Cohort 4: KW-2478 175 mg/m^2 and Bortezomib 1.3mg/m^2

Life Threatening TEAE

Moderate (CTCAE 2) TEAE

Related TEAE

6.0
participants

Serious Treatment-Emergent AE

4.0
participants

Severe (CTCAE 3) TEAE

5.0
participants

Subjects with Any DLT

Subjects with Any TEAE

6.0
participants

Phase 2: KW-2478 175 mg/m^2 and Bortezomib 1.3mg/m^2

Life Threatening TEAE

12.0
participants

Moderate (CTCAE 2) TEAE

22.0
participants

Related TEAE

74.0
participants

Serious Treatment-Emergent AE

36.0
participants

Severe (CTCAE 3) TEAE

42.0
participants

Subjects with Any DLT

Subjects with Any TEAE

80.0
participants

Phase 1: PK Absorption Tmax hr Day 11

Descriptive summary statistics (number, arithmetic mean, standard deviation [SDev], coefficient of variation [CV%]) for concentration and PK data for KW-2478 and Bortezomib in Phase 1 were presented by cohort, dose level and day.

Phase 1 Cohort 1: KW-2478 130 mg/m^2 and Bortezomib 1.0mg/m^2

1.03
hr (Mean)
Standard Deviation: 0.0441

Phase 1 Cohort 2: KW-2478 130 mg/m^2 and Bortezomib 1.3mg/m^2

1.03
hr (Mean)
Standard Deviation: 0.0481

Phase 1 Cohort 3: KW-2478 175 mg/m^2 and Bortezomib 1.0mg/m^2

1.11
hr (Mean)
Standard Deviation: 0.129

Phase 1 Cohort 4: KW-2478 175 mg/m^2 and Bortezomib 1.3mg/m^2

1.07
hr (Mean)
Standard Deviation: 0.0638

Phase 1: PK Exposure Cmax ng/mL Day 11

Descriptive summary statistics (number, arithmetic mean, standard deviation [SDev], coefficient of variation [CV%]) for concentration and PK data for KW-2478 and Bortezomib in Phase 1 were presented by cohort, dose level and day.

Phase 1 Cohort 1: KW-2478 130 mg/m^2 and Bortezomib 1.0mg/m^2

7910.0
ng/mL (Mean)
Standard Deviation: 5360

Phase 1 Cohort 2: KW-2478 130 mg/m^2 and Bortezomib 1.3mg/m^2

41000.0
ng/mL (Mean)
Standard Deviation: 64100

Phase 1 Cohort 3: KW-2478 175 mg/m^2 and Bortezomib 1.0mg/m^2

5990.0
ng/mL (Mean)
Standard Deviation: 2720

Phase 1 Cohort 4: KW-2478 175 mg/m^2 and Bortezomib 1.3mg/m^2

5280.0
ng/mL (Mean)
Standard Deviation: 2290

Phase 1: PK Exposure AUC0-t hr*ng/mL Day 11

Descriptive summary statistics (number, arithmetic mean, standard deviation [SDev], coefficient of variation [CV%]) for concentration and PK data for KW-2478 and Bortezomib in Phase 1 were presented by cohort, dose level and day.

Phase 1 Cohort 1: KW-2478 130 mg/m^2 and Bortezomib 1.0mg/m^2

7940.0
hr*ng/mL (Mean)
Standard Deviation: 2580

Phase 1 Cohort 2: KW-2478 130 mg/m^2 and Bortezomib 1.3mg/m^2

26200.0
hr*ng/mL (Mean)
Standard Deviation: 36700

Phase 1 Cohort 3: KW-2478 175 mg/m^2 and Bortezomib 1.0mg/m^2

7190.0
hr*ng/mL (Mean)
Standard Deviation: 2150

Phase 1 Cohort 4: KW-2478 175 mg/m^2 and Bortezomib 1.3mg/m^2

6040.0
hr*ng/mL (Mean)
Standard Deviation: 2280

Phase 1: PK Elimination t½ hr Day 11

Descriptive summary statistics (number, arithmetic mean, standard deviation [SDev], coefficient of variation [CV%]) for concentration and PK data for KW-2478 and Bortezomib in Phase 1 were presented by cohort, dose level and day.

Phase 1 Cohort 1: KW-2478 130 mg/m^2 and Bortezomib 1.0mg/m^2

1.88
hr (Mean)
Standard Deviation: 0.076

Phase 1 Cohort 2: KW-2478 130 mg/m^2 and Bortezomib 1.3mg/m^2

2.02
hr (Mean)
Standard Deviation: 0

Phase 1 Cohort 3: KW-2478 175 mg/m^2 and Bortezomib 1.0mg/m^2

1.84
hr (Mean)
Standard Deviation: 0.206

Phase 1 Cohort 4: KW-2478 175 mg/m^2 and Bortezomib 1.3mg/m^2

1.77
hr (Mean)
Standard Deviation: 0.262

Age, Continuous

64.3
years (Mean)
Standard Deviation: 9.3

Body Surface Area (BSA)

1.87
m^2 (Mean)
Standard Deviation: 0.27

Race (NIH/OMB)

Region of Enrollment

Sex: Female, Male

Overall Study

Phase 1: KW-2478 and Bortezomib

Phase II: KW-2478 130mg/m^2 and Bortezomib 1.3mg/m^2