Tivantinib in Treating Patients With Relapsed, or Relapsed and Refractory Multiple Myeloma

PRIMARY OBJECTIVES:

I. To determine the overall response rate of patients with relapsed, or relapsed and
refractory multiple myeloma treated with the c-Met inhibitor ARQ 197 (tivantinib) as a
single agent.

II. To define the toxicities of single agent ARQ 197 in a population of patients with
relapsed, or relapsed and refractory multiple myeloma.

SECONDARY OBJECTIVES:

I. To obtain preliminary evidence of the durability of responses to single agent ARQ 197,
including the progression free survival (PFS), the duration of response (DOR), and the time
to next treatment (TTNT).

II. To correlate the activation status of the hepatocyte growth factor (HGF)/c-Met pathway
in primary myeloma cells at baseline, as defined by gene expression profiling and reverse
phase protein array data, with the above measures of efficacy of ARQ 197.

III. To correlate serum and marrow HGF, HGF activator (HGFA), and soluble c-Met (sc-Met)
levels with the activation status of the HGF/c-Met pathway in primary myeloma cells at
baseline, and with the above measures of efficacy of ARQ 197.

TERTIARY OBJECTIVES:

I. To evaluate the symptom burden of relapsed, or relapsed and refractory multiple myeloma
patients undergoing therapy with single agent ARQ 197 using the M. D. Anderson Symptom
Inventory (MDASI) and its multiple myeloma module (MDASI-MM) II. To evaluate the impact of
therapy with single agent ARQ 197 for relapsed, or relapsed and refractory multiple myeloma
on patient reported outcomes using the European Organization for Research on the Treatment
of Cancer (EORTC) Quality of Life Questionnaire (QLQ) Core 30 (QLQ-C30), and the
myeloma-specific module QLQ-MY20.

III. To evaluate the impact of therapy with single agent ARQ 197 for relapsed, or relapsed
and refractory multiple myeloma on the ability to collect stem cells in any patients who go
on to undergo subsequent stem cell mobilization.

OUTLINE:

Patients receive tivantinib orally (PO) twice daily (BID) on days 1-28. Courses continue
every 28 days in the absence of disease progression or unacceptable toxicity. Patients
undergo blood, urine, and bone marrow collection for gene expression profile, proteomic
profiling, and other correlative studies. Patients may complete the MDASI and its MDASI-MM,
the EORTC QLQ-C30, and the myeloma-specific module QLQMY20 questionnaires at baseline and
periodically during study.

After completion of study treatment, patients are followed up for 30 days.

Inclusion Criteria:

- Patients must have been previously diagnosed with histologically or cytologically
confirmed symptomatic multiple myeloma, which requires the presence of all three of
the following International Myeloma Working Group criteria, except as noted:

- Clonal bone marrow plasma cells >= 10%

- A monoclonal protein in either serum or urine

- Evidence of end-organ damage that can be attributed to the underlying plasma
cell proliferative disorder (to include one of the following):

- Hypercalcemia (corrected calcium > 2.75 mmol/L or 11.5 mg/dL)

- Renal insufficiency attributable to myeloma (serum creatinine > 1.9 mg/dL)

- Anemia; normochromic, normocytic with a hemoglobin value >= 2 g/dL below
the lower limit of normal, or a hemoglobin or < 10 g/dL

- Bone lytic lesions, severe osteopenia, or pathologic fractures

- Patients with a biopsy-proven plasmacytoma and either a serum or urine
monoclonal protein will also be considered to have met the diagnostic
criteria for multiple myeloma in the absence of clonal marrow plasmacytosis
of >= 10%

- Patients must have measurable disease, as defined by at least one of the following:

- Serum monoclonal protein level >= 0.5 g/dL for immunoglobulin (Ig)G, IgA, or IgM
disease

- Monoclonal protein or total serum IgD >= 0.5 g/dL for IgD disease

- Urinary M-protein excretion of >= 200 mg over a 24-hour period

- Involved free light chain level >= 10 mg/dL, along with an abnormal free light
chain ratio

- Patients must have had at least one, but not more than four prior lines of therapy
for their disease, with lines of therapy being separated by the presence of
documented disease progression; using this definition, treatment with induction
therapy, followed by high-dose chemotherapy and autologous stem cell transplantation,
and finally by maintenance therapy, would constitute one line, provided that multiple
myeloma did not meet criteria for progression at any time during this period

- Patients with relapsed disease will be considered to be those who have had
progression, as defined above, off of any therapy, and who completed their therapy
more than 60 days prior to the finding of progression; patients with relapsed and
refractory disease will be considered to be those who have had progression, as
defined above, while still on their last line of therapy, or who progressed within 60
days of finishing their most recent therapy

- Patients must have completed their most recent drug therapy directed at multiple
myeloma in the following time frames:

- Chemotherapy, biological therapy, immunotherapy, or an investigational therapy
at least 3 weeks prior to starting c-Met inhibitor ARQ197

- Corticosteroids at least 3 weeks prior to starting ARQ 197, except for a dose
equivalent to dexamethasone of no greater than 4 mg/day

- Nitrosoureas, nitrogen mustards, mitomycin C, or monoclonal antibodies at least
6 weeks prior to starting ARQ 197

- Autologous stem cell transplantation at least 12 weeks prior to starting ARQ 197

- Allogeneic stem cell transplantation at least 24 weeks prior to starting ARQ
197, and these patients must also not have moderate to severe active acute or
chronic graft-versus-host disease

- Patients must be willing and able to provide voluntary written informed consent, with
the understanding that consent may be withdrawn by the subject at any time without
prejudice to their future medical care

- Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1, or 2 (Karnofsky
>= 60%)

- Absolute neutrophil count (ANC) >= 1,000 cells/mm^3 without growth factors within 1
week of the initiation of treatment

- Total white blood cell count (WBC) >= 2,000 cells/mm^3 without growth factors within
1 week of the initiation of treatment

- Hemoglobin >= 8 g/dL without red blood cell transfusions within 2 weeks of the
initiation of treatment

- Platelet counts of >= 100,000 cells/mm^3 for patients who have bone marrow
plasmacytosis of < 50%, or >= 50,000 cells/mm^3 for patients who have bone marrow
plasmacytosis of >= 50%

- Total bilirubin =< 1.5 times the upper limit of the institutional normal (ULN) values

- Total aspartate aminotransferase (AST) (serum glutamic oxaloacetic acid transaminase
[SGOT]) and alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase
[SGPT]) =< 2.5 times ULN values

- Serum creatinine within the institutional normal limits OR if the creatinine is
elevated, creatinine clearance (CrCl) >= 30 mL/min., as measured by a 24-hour urine
collection, or estimated by the Cockcroft and Gault formula

- Patients must have evidence of adequate cardiac function, as defined by the
following:

- Absence of New York Heart Association (NYHA) class II, III, or IV congestive
heart failure

- Absence of uncontrolled angina or hypertension

- Absence of myocardial infarction in the previous 6 months

- Absence of clinically significant bradycardia or other uncontrolled cardiac
arrhythmia defined as grade 3 or 4 according to National Cancer Institute (NCI)
Common Terminology Criteria for Adverse Events (CTCAE), version 4.0

- Patients who have received radiation therapy must have completed this at least 4
weeks prior to starting therapy with ARQ 197, with the following exceptions:

- Local radiation therapy to enhance bone healing of a pathologic fracture may
have been performed, as long as it was completed at least 2 weeks prior to
starting ARQ 197

- Local radiation therapy to treat post-fracture pain that is refractory to
analgesics may have been performed, as long as it was completed at least 2 weeks
prior to starting ARQ197

- Patients who have undergone any recent major surgery must have done so at least 4
weeks prior to starting therapy with ARQ 197, with the following exceptions:

- Vertebroplasty and/or kyphoplasty, which must have been performed at least 1
week prior to starting ARQ 197

- Planned elective surgery unrelated to the patient's diagnosis of multiple
myeloma, such as hernia repair, may be allowed, at the discretion of the
Principal Investigator, as long as it was performed at least 2 weeks prior to
starting ARQ 197, and patients have recovered fully from this procedure

- Human immunodeficiency virus (HIV)-seropositive patients with acceptable organ
function who meet the patient selection criteria, and who are not on combination
antiretroviral therapy, and whose absolute CD4+ count is >= 400 cells per cubic
millimeter of blood, will be eligible; however, HIV positive patients on combination
antiretroviral therapy will be ineligible

- Male patients must agree to use an adequate method of contraception for the duration
of the study since the effects of ARQ 197 on the developing human fetus are unknown;
female patients must be either post menopausal, free from menses for >= 2 years,
surgically sterilized, or willing to use two adequate barrier methods of
contraception to prevent pregnancy, or must agree to abstain from heterosexual
activity throughout the study; female patients of childbearing potential must have a
negative serum (beta-human chorionic gonadotropin [beta-HCG]) or urine pregnancy test
before receiving the first dose of ARQ 197; should a woman become pregnant or suspect
she is pregnant while she or her partner is participating in this study, she should
inform her treating physician immediately

Exclusion Criteria:

- Patients who are receiving any concurrent investigational agent with known or
suspected activity against multiple myeloma, or those whose adverse events due to
agents administered more than 4 weeks earlier have not recovered to a severity of
grade 0 or grade 1

- Patients who have known central nervous system involvement with multiple myeloma will
be excluded from this clinical trial

- Patients who have previously been treated with another agent targeting the HGF/c-Met
axis, including either monoclonal antibodies to HGF or c-Met, or small molecule
inhibitors of c-Met

- Patients with a known history of allergic reactions attributed to compounds of
similar chemical or biologic composition to ARQ 197

- Uncontrolled intercurrent illness including, but not limited to, ongoing or active
infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac
arrhythmia, or psychiatric illness/social situations that would limit compliance with
study requirements, in the opinion of the Principal Investigator

- Pregnant or lactating women are excluded from this study

- HIV positive patients on combination antiretroviral therapy are ineligible because of
the potential for pharmacokinetic interactions with ARQ 197; however, HIV
seropositive patients with acceptable organ function who meet the patient selection
criteria, and who are not on combination antiretroviral therapy, will be eligible

- Patients with non-secretory multiple myeloma, active plasma cell leukemia, defined as
either having 20% of peripheral white blood cells comprised of CD138+ plasma cells,
or an absolute plasma cell count of 2 x 10^9/L, known amyloidosis, or known POEMS
syndrome (plasma cell dyscrasia with polyneuropathy, organomegaly, endocrinopathy,
monoclonal protein, and skin changes)

- Patients who have required plasmapheresis and exchange less than 2 weeks prior to
initiation of therapy with ARQ 197

- Patients with known active hepatitis A, B, and/or C infection

- Patients with a "currently active" second malignancy, other than non-melanoma skin
cancer and carcinoma in situ of the cervix, should not be enrolled; patients are not
considered to have a "currently active" malignancy if they have completed therapy for
a prior malignancy, are disease free from prior malignancies for > 5 years, and are
considered by their physician to be at less than 30% risk of relapse; in addition,
patients with basal cell carcinoma of the skin, superficial carcinoma of the bladder,
carcinoma of the prostate with a current prostate-specific antigen (PSA) value of <
0.5 ng/mL, or cervical intraepithelial neoplasia will be eligible; finally, patients
who are on hormonal therapy for a history of either prostate cancer or breast cancer
may enroll, provided that there has been no evidence of disease progression during
the previous three years