Participants with MM will be observed in real-world clinical practice settings. The primary data source for this study will be the medical records of each participant.

Both retrospective and prospective data will be collected. The retrospective data will be collected through medical chart review.

Demographic characteristics (such as age, gender, race, ethnicity, country of residence, and health insurance) of MM participants will be assessed at baseline.

Number of participants with comorbid conditions (such as obesity, diabetes, cardiovascular disease, anemia alcohol, and tobacco use) will be assessed at baseline.

General health status based on Frailty Score will be reported. International Myeloma Working Group (IMWG) frailty score: Participants frailty status will be assessed on the basis of 4 components: age (less than [<75], 76- 80, and greater than [>]80 years correspond to frailty scores of 0, 1, and 2, respectively), the charlson comorbidity scoring system without age weighting (scores of less than or equal to [<=]1 and greater than or equal to [>=]2 correspond to frailty scores of 0 and 1, respectively), independence in activities of daily living (scores of >4 and <=4 correspond to frailty scores of 0 and 1, respectively) and instrumental activities of daily living scale (scores of >5 and <=5 correspond to frailty scores of 0 and 1, respectively). The sum of the 4 frailty scores equals the total frailty score. The total frailty score ranges from 0 to 5, with a total of three categories: 0 (fit), 1 (intermediate-fitness) and greater than or equal to (>=)2 (frail).

ECOG performance status is a standard criterion for measuring how the disease impacts daily living abilities. It describes the level of functioning in terms of the ability to care for oneself, daily activity, and physical ability (walking, working, etc). ECOG performance status score ranges from Grade 0 to 5: 0= Fully active and performances without restriction, 1= Restricted in physically strenuous activity, 2= Ambulatory and capable of all self-care but unable to carry out any work activities, 3= Capable of only limited self-care and confined to bed or chair more than 50% of waking hours, 4= Completely disabled, and 5= Dead.

The OS in MM participants will be measured and reported from diagnosis to the date of death.

PFS is defined as time from diagnosis to disease progression. IMWG criteria for disease progression: increase of greater than or equal to (>=)25 percent (%) from lowest response value in any one of the following: Serum M-component (absolute increase must be >=0.5 gram per deciliter [g/dL]), Urine M-component (absolute increase must be >=200 milligram per 24 hour [mg/24 hour]), only in participants without measurable serum and urine M-protein levels: the difference between involved and uninvolved free light chain levels (absolute increase must be greater than >10 mg/dL), Bone marrow plasma cell percentage: the absolute percent must be >=10%, Definite development of new bone lesions or soft tissue plasmacytomas or definite increase in the size of existing bone lesions or soft tissue plasmacytomas, Development of hypercalcemia (corrected serum calcium >11.5 mg/dL or 2.65 millimoles per liter [mmol/L]) that can be attributed solely to the plasma cell proliferative disorder.