A Multicenter Prospective Observational Cohort Study Evaluating the Impact of Cancer-Directed Treatment and Medication Use, Including Cannabis Use, in Multiple Myeloma Patients

Inclusion Criteria:

* \* Documented informed consent of the participant

  * Age: ≥ 18 years
  * ECOG ≤ 3
  * Ability to read and understand English
  * Patient must be newly diagnosed with a histologically confirmed multiple myeloma
  * Patients may have started first line therapies and received up to four cycles
  * HCP SURVEY: Documented informed consent of the participant
  * HCP SURVEY: Age: ≥ 18 years
  * HCP SURVEY: Licensed physician, physician assistant, nurse practitioner, or registered nurse
  * HCP SURVEY: Currently practicing in oncology or providing direct care to oncology patients
  * HCP SURVEY: Able to read and understand English
  * HCP SURVEY: Affiliation with City of Hope

Exclusion Criteria:

* \* Patients may not have completed five cycles of first line therapy or undergone any second line therapy

  * Other active malignancy
  * Patients may not have undergone autologous hematopoietic stem cell transplantation
  * Unable to comply with the study assessments
  * HCP SURVEY: Reports directly to study PI (Dr. Richard Lee)
  * HCP SURVEY: Member of the study team or involved in survey design or analysis
  * HCP SURVEY: Individuals with a real or perceived conflict of interest that could bias survey responses