Selinexor (KPT-330) and Liposomal Doxorubicin For Relapsed and Refractory Multiple Myeloma

Investigator-Initiated Phase I/II Clinical Trial of Selinexor (KPT-330) and Liposomal Doxorubicin for Relapsed and Refractory Multiple Myeloma

The main purpose of this study is to determine the recommended doses of selinexor in combination with liposomal doxorubicin and dexamethasone for patients with relapsed and refractory myeloma. In addition, the study will assess whether this combination with effective for patients with multiple myeloma.

Study Overview

• Status: Completed
• Conditions: Multiple Myeloma
• Intervention / Treatment: Drug: Selinexor; Drug: Liposomal doxorubicin; Drug: Dexamethasone

• Study Type: Interventional
• Enrollment (Actual): 28
• Phase: Phase 2; Phase 1

Contacts and Locations

Study Locations

• United States
  • Florida
    • Tampa, Florida, United States, 33612
      • H. Lee Moffitt Cancer Center and Research Institute
  • Michigan
    • Detroit, Michigan, United States, 48201
      • Barbara Ann Karmanos Cancer Institute

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Patients with relapsed and refractory multiple myeloma who have received at least 2 prior therapies which must include lenalidomide and a proteasome inhibitor. Patients must have disease refractory to the most recent therapy. Refractory myeloma is defined as progressive disease during or within 60 days of last therapy. Patients must have previously received or be ineligible for (or refused) autologous stem cell transplant.
• Must have measurable myeloma paraprotein levels in serum (≥ 0.5 g/dL) or urine (≥ 0.2 g excreted in a 24-hour urine collection sample) or by free light chain (involved free light chain greater than 100 mg/L).
• Eastern Cooperative Oncology Group (ECOG) performance status of 0-1. ECOG 2 allowed if due to bone disease
• Must have an echocardiogram or multigated acquisition (MUGA) scan indicating left ventricular ejection fraction (LVEF) ≥ 50% within 42 days prior to first dose of study drug
• Adequate hematological function
• Adequate hepatic function within 14 days prior to loading phase (day -14)
• Adequate renal function within 14 days prior to loading: estimated creatinine clearance of ≥ 30 mL/min, (Cockcroft and Gault)
• Female patients of child-bearing potential must agree to use dual methods of contraception and have a negative serum pregnancy test at screening. Male patients must use an effective barrier method of contraception if sexually active with a female of child-bearing potential. For both male and female patients, effective methods of contraception must be used throughout the study and for three months following the last dose.

Exclusion Criteria:

• Women who are pregnant or lactating
• Radiation, chemotherapy, or immunotherapy or any other approved anticancer therapy ≤2 weeks prior to day -7 (beginning of loading phase)
• Major surgery within four weeks before Day -7
• Myocardial infarct within 6 months before enrollment, New York Heart Association (NYHA) Class II or greater heart failure, uncontrolled angina, severe uncontrolled ventricular arrhythmias, clinically significant pericardial disease, or electrocardiographic evidence of acute ischemic or active conduction system abnormalities
• Prior cumulative exposure to doxorubicin (including liposomal preparation) > 350mg/m^2
• Uncontrolled infection requiring parenteral antibiotics, antivirals, or antifungals within one week prior to first dose; patients with controlled infection or on prophylactic antibiotics are permitted in the study
• Known to be HIV seropositive
• Known active hepatitis A, B, or C infection; or known to be positive for hepatitis C virus (HCV) RNA or HBsAg (HBV surface antigen)
• Any underlying condition that would significantly interfere with the absorption of an oral medication
• Grade >2 peripheral neuropathy at baseline (within 14 days prior to loading phase (day -7))
• Serious psychiatric or medical conditions that could interfere with treatment
• Participation in an investigational anti-cancer study within 3 weeks prior to day -7(beginning of loading phase)
• Concurrent therapy with approved or investigational anticancer therapeutic
• Coagulation problems and active bleeding in the last month
• Previous allogeneic transplant within 6 months and have evidence of clinically significant graft versus host disease

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Experimental: Selinexor, Liposomal Doxorubicin and Dexamethasone; Combination Therapy: Phase I Dose Escalation followed by Phase 2 treatment at Recommended Phase 2 Dose (RP2D). After the initial screening visit and registration in the study, participants will receive Selinexor orally at a dose of 80 mg along with dexamethasone for 1 day. One week later, patients will receive weekly selinexor at a starting dose from 60 mg once a week to 80 mg twice a week in combination with pegylated liposomal doxorubicin at a starting dose of 20 mg/m², and dexamethasone 40 mg orally weekly.

Drug: Selinexor; Selinexor orally as outlined in the study treatment arm.; Other Names: KPT-330; Drug: Liposomal doxorubicin; Pegylated liposomal doxorubicin at a starting dose of 20 mb/m² as outlined in the treatment arm.; Other Names: Lipodox; LD; Drug: Dexamethasone; Participants will be instructed to take Dexamethasone 40 mg (10 tablets) orally once weekly with meals (ideally with breakfast to minimize insomnia). Participants older than 75 years and patients previously intolerant to 40 mg dosage will be allowed to receive 20 mg (5 tablets) once a week.; Other Names: Decadron

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Maximum Tolerated Dose (MTD)	Determine the maximum tolerated dose (MTD) and recommended phase 2 dose (RP2D): Selinexor on Days 1, 8 and 15 when given in combination with Lipodox 20 mg/m^2 and Dexamethasone 40 mg. Dose level 1: 40 mg in combination with Lipodox and Dexamethasone. Dose level 2: 80 mg (D1,8,15) in combination with Lipodox and Dexamethasone. Dose level 2m: 80 mg (D1,8,15) in combination with Lipodox and Dexamethasone. Dose level 3m: 80 mg (D1,3,8,10) in combination with Lipodox and Dexamethasone.	Up to 12 months
Overall Response Rate (ORR) - All Participants	ORR per the modified uniform response criteria of the International Myeloma Working Group (IMWG), partial response and better. Partial Remission (PR): >/= 50% reduction of serum M-Protein and reduction in 24-hour urinary M-protein by >/= 90% or to < 200 mg per 24 hours; Very Good Partial Remission (VGPR): Serum and urine M-protein detectable by immunofixation but not on electrophoresis or 90% or greater reduction in serum M-protein plus urine M-protein level <100 mg per 24 hours; Complete Remission (CR): Negative immunofixation on the serum and urine and disappearance of any soft tissue plasmacytomas and </= 5% plasma cells in bone marrow. Stable Disease: Not meeting criteria for CR, VGPR, PR, or progressive disease. Minimal response: Less than 50% decrease in M protein. Not evaluable: Cannot be measured because enough information has not been collected.	Up to 24 months
Overall Response Rate (ORR) -All Participants Treated at Recommended Phase 2 Dose	Determine the overall response rate per the modified uniform response criteria of the International Myeloma Working Group (IMWG), partial response and better. Partial Remission (PR): >/= 50% reduction of serum M-Protein and reduction in 24-hour urinary M-protein by >/= 90% or to < 200 mg per 24 hours; Very Good Partial Remission (VGPR): Serum and urine M-protein detectable by immunofixation but not on electrophoresis or 90% or greater reduction in serum M-protein plus urine M-protein level <100 mg per 24 hours; Complete Remission (CR): Negative immunofixation on the serum and urine and disappearance of any soft tissue plasmacytomas and </= 5% plasma cells in bone marrow.	Up to 24 months

Collaborators and Investigators

• Sponsor: H. Lee Moffitt Cancer Center and Research Institute
• Collaborators: Karyopharm Therapeutics Inc
• Investigators: Principal Investigator: Rachid Baz, M.D., H. Lee Moffitt Cancer Center and Research Institute

Publications and helpful links

General Publications

• Turner JG, Dawson JL, Grant S, Shain KH, Dalton WS, Dai Y, Meads M, Baz R, Kauffman M, Shacham S, Sullivan DM. Treatment of acquired drug resistance in multiple myeloma by combination therapy with XPO1 and topoisomerase II inhibitors. J Hematol Oncol. 2016 Aug 24;9(1):73. doi: 10.1186/s13045-016-0304-z.

Helpful Links

• Moffitt Cancer Center Clinical Trials website

Study record dates

Study Major Dates

• Study Start (Actual): September 23, 2014
• Primary Completion (Actual): November 8, 2017
• Study Completion (Actual): March 14, 2018

Study Registration Dates

• First Submitted: July 8, 2014
• First Submitted That Met QC Criteria: July 8, 2014
• First Posted (Estimate): July 10, 2014

Study Record Updates

• Last Update Posted (Actual): January 4, 2023
• Last Update Submitted That Met QC Criteria: December 29, 2022
• Last Verified: December 1, 2022

More Information

Terms related to this study

• Keywords: Relapsed; Refractory; Myeloma
• Additional Relevant MeSH Terms: Cardiovascular Diseases; Vascular Diseases; Immune System Diseases; Neoplasms by Histologic Type; Neoplasms; Lymphoproliferative Disorders; Immunoproliferative Disorders; Hematologic Diseases; Hemorrhagic Disorders; Hemostatic Disorders; Paraproteinemias; Blood Protein Disorders; Multiple Myeloma; Neoplasms, Plasma Cell; Physiological Effects of Drugs; Molecular Mechanisms of Pharmacological Action; Autonomic Agents; Peripheral Nervous System Agents; Enzyme Inhibitors; Anti-Inflammatory Agents; Antineoplastic Agents; Antiemetics; Gastrointestinal Agents; Glucocorticoids; Hormones; Hormones, Hormone Substitutes, and Hormone Antagonists; Antineoplastic Agents, Hormonal; Topoisomerase II Inhibitors; Topoisomerase Inhibitors; Antibiotics, Antineoplastic; Dexamethasone; Doxorubicin; Liposomal doxorubicin
• Other Study ID Numbers: MCC-17814

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No