A Study to Determine the Effect and Safety of an Oral Janus Kinase 2 (JAK2)-Inhibitor (Ruxolitinib; INBC018424) in Patients With Multiple Myeloma

A Phase 2, Two Stage, Open-label, Clinical Trial to Determine the Therapeutic Effect and Safety of an Oral JAK2-inhibitor (INCB018424) in Patients With Relapsed or Refractory Multiple Myeloma

The purpose of this study was to determine clinical efficacy and safety of ruxolitinib (INCB018424), a small molecule Janus kinase 2 (JAK2)-inhibitor, in patients with refractory or relapsed multiple myeloma.

The protocol was originally designed as a Simon two stage but after it was determined that the initial 13 patients enrolled did not meet the definition of a 'responder' according to the International Uniform Response Criteria for multiple myeloma the protocol was amended to allow patients who had disease progression at any time or stable disease for 3 cycles and did not meet a withdrawal criterion or had withdrawn consent to have 40 mg of dexamethasone added to their dose of ruxolitinib.

Inclusion Criteria:

• Confirmed diagnosis of multiple myeloma with evidence of measurable disease.
• Relapsed or refractory disease with at least one line of prior therapy.
• Adequate bone marrow reserve.

Exclusion Criteria:

• Received anti-cancer medications or investigational therapy in the past 28 days.
• Intracranial disease or epidural disease.