Study of Tabalumab (LY2127399) in Japanese Participants With Relapsed or Refactory Multiple Myeloma

Inclusion Criteria:

* Have relapsed or refractory MM treated with at least 1 prior regimen. Prior therapy with bortezomib is allowed if there was previously at least a minimal response (MR).
* Have measurable disease as defined by one or more of the following:

  * serum M-protein concentration ≥ 1 g/dL (10 g/L)
  * urine monoclonal light chain concentration ≥ 200 mg/24 hours as determined by urine protein electrophoresis
  * involved serum free light chain (SFLC) concentration ≥ 10 mg/dL (100 mg/L) and an abnormal SFLC ratio
* Have adequate organ function including:

  * Absolute neutrophil count (ANC) ≥ 1000/microliter
  * Platelet (PLT) count ≥ 75,000/microliter
  * Hemoglobin (Hgb) ≥ 8.0 g/dL
  * Total bilirubin ≤ 1.5 x upper limit of normal (ULN) (if total is elevated check direct and, if normal, participant is eligible)
  * Aspartate transaminase (AST) and alanine aminotransferase (ALT) are ≤ 3 x ULN
  * Serum creatinine ≤ 3.0 mg/dL.
* Have an Eastern Cooperative Oncology Group performance status (ECOG PS) score of ≤ 2.
* Have discontinued all previous therapies for cancer, including chemotherapy, surgery, and radiotherapy for at least 2 weeks (6 weeks for mitomycin-C or nitrosoureas) before study enrollment and recovered from the acute effects of therapy.
* Males and females with reproductive potential: Must agree to use medically approved contraceptive precautions during the study and for 4 months following the last dose of study drug.
* Females with childbearing potential: Must have had a negative urine or serum pregnancy test \<7 days before the first dose of study drug.
* Have an estimated life expectancy of ≥16 weeks, in the opinion of the investigator.

Exclusion Criteria:

* Have received treatment within 30 days of the initial dose of study drug with an experimental agent for non-cancer indications that has not received regulatory approval for any indication.
* Have one or more serious preexisting medical conditions that, in the opinion of the investigator, would preclude participation in this study.
* Have an uncontrolled infection.
* Females who are pregnant or breastfeeding.
* Have known positive test results for human immunodeficiency virus (HIV), hepatitis B\*, or hepatitis C antibodies (HCAb).

  \* Have evidence of or test positive for hepatitis B. A positive test for hepatitis B is defined as:
  1. positive for hepatitis B surface antigen (HBsAg+). OR
  2. positive for anti-hepatitis B core antibody and positive for hepatitis B deoxyribonucleic acid (HBV DNA).

     OR
  3. positive for anti-hepatitis B surface antibody (HBsAb+) and positive for hepatitis B deoxyribonucleic acid (HBV DNA).
* Have ≥ Grade 2 peripheral neuropathy or any grade with pain as assessed using the Common Terminology Criteria for Adverse Events, version 4.03 (CTCAE v 4.03).
* Have previously received an allogenic hematopoietic stem cell transplant.
* Have previously received treatment with an experimental agent that targets B-cell activating factor (BAFF).
* Have a corrected QT (QTc) interval \>470 msec on their baseline electrocardiogram (ECG).
* Have interstitial pneumonitis (interstitial pneumonia) or pulmonary fibrosis manifested as opacity on chest X-ray or computed tomography (CT) scan.
* Have had another active malignancy within the past 5 years.