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

TEAEs are events that occurred on or after initial treatment that were absent before treatment or worsened during the treatment period relative to the pretreatment state. AEs that occurred within 30 days of the last administration of study treatment can be attributed to the treatment period.

TEAEs are events that occurred on or after initial treatment that were absent before treatment or worsened during the treatment period relative to the pretreatment state. AEs that occurred within 30 days of the last administration of study treatment can be attributed to the treatment period. National Cancer Institute (NCI)-graded Common Toxicity Criteria (CTC) provides descriptive terminology for adverse event reporting. A grading (severity) scale is provided for each adverse event term. Grades range from 0 (none) to 5 (death).

Deaths were reported from baseline throughout the 30 day period after last study treatment. After the 30 day reporting period, only deaths believed related to study treatment were to be reported (as SAEs).

SAEs include medical occurrences that result in death, are life threatening, require hospitalization or prolongation of hospitalization, result in disability / incapacity or are a congenital anomaly or birth defect in the offspring of a study subject. Participants with documented study treatment toxicity were followed weekly until recovering. After the 30 day reporting period, only SAEs believed to be related to study treatment were to be reported.

Temporary interruption of study treatment; may be followed by resumption of study treatment at current dose or dose modification as determined by the investigator and medical monitor.

Dose reduction for individual participant allowed if a dose limiting toxicity (DLT) occurred; may continue treatment following reduction by 1 to 2 dose levels (determined by investigator and medical monitor). DLT= failure to recover to National Cancer Institute Common Terminology Criteria for AEs (NCI-CTCAE) version 3.0 grade 0 to 2 (or within 1 grade of starting values for pre-existing laboratory abnormalities) from a treatment-related toxicity within 3 weeks (leading to a treatment delay of \>3 weeks) unless investigator and medical monitor agree participant should remain in the study.

Number of participants who met the criteria for PCI changes (based on baseline values before treatment); criteria defined as body temperature \>39 degrees Celsius (C), respiratory rate \>20 beats per minute (bpm), and systolic and diastolic blood pressure (BP) \>200/110 millimeters of mercury (mmHg). Participants may be reported in more than 1 category.

Number of participants who met the PCI criteria (grades 1 through 5) for laboratory values (hematology and serum chemistry). NCI-CTC provides descriptive terminology for adverse event reporting. A grading (severity) scale is provided with grades ranging from 0 (none), 1 (mild), 2 (moderate), 3 (severe), 4 (life-threatening or disabling), to 5 (death). Participants may be reported in more than 1 category.

Measured as Complete response (CR), Very good partial response (VGPR), or Partial response (PR) on at least 2 occasions greater than or equal to (\>=) 4 weeks apart within first 12 weeks. CR=disappearance of all primary and metastatic lesions; Homovanillic acid, Vanillymandelic acid (HVA/VMA) normal; bone marrow immunocytology negative. VGPR=disappearance of all metastatic lesions (residual areas of uptake on bone permitted); 90 to 99 percent (%) decrease in primary disease measurement; HVA/VMA normal or both decreased \>90%. PR=at least 50% decrease in primary and metastatic disease. Number of bone sites decreased by at least 50%.