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Clinical Trial Summary

This study is being done to learn more about the drug, pomalidomide and to gather data on its safety and side effects when used in combination with commercially available cyclophosphamide and dexamethasone. This combination is considered experimental and has not been approved by the FDA.

Pomalidomide is a third generation immunomodulatory (IMiDs) agent, which is a more potent version of thalidomide and lenalidomide drugs that have been approved by the United States Food and Drug Administration [FDA] for the treatment of MM. In February 2013, pomalidomide was also approved by the FDA for patients with MM who have had more than 2 types of therapy.

Pomalidomide is taken orally as capsules, and cyclophosphamide and dexamethasone are also taken orally as tablets in this study. Cyclophosphamide and dexamethasone are commercially available and are often used in combination with other drugs to treat Multiple Myeloma. Preliminary data from both the laboratory and patient studies suggest that this combination of drugs is more effective than pomalidomide and dexamethasone alone. However, the regimen being used in this study, which consists of daily cyclophosphamide, also permits support of low blood counts with either injections or transfusions as needed.


Clinical Trial Description

This is an open label, single center, phase II study of a combination of pomalidomide, daily low dose oral cyclophosphamide, and dexamethasone in patients with relapsed/refractory multiple myeloma. The three oral drugs will be given in 28-day cycles: Pomalidomide 4 mg daily x 21 days; cyclophosphamide 50 mg BID x 21 days; and dexamethasone 40 mg weekly x 3 (20 mg weekly if the patient aged ≥ 75 years old). Subjects meeting eligibility criteria with ANC < 1000/µL and platelet count < 50,000/µL will start at dose level -1 of both pomalidomide (3 mg daily) and cyclophosphamide (50 mg daily). G-CSF and platelet transfusion support is permitted if needed.

Dose reduction for hematologic toxicity will begin with cyclophosphamide and then subsequently alternate with pomalidomide until a subject cannot tolerate dose level -2 of both agents - in which case subject would come off study. If subject has 2 or more concurrent toxicities that are potentially attributable to both agents (e.g. hematologic toxicity) then dose modification guidelines will be followed with dose reduction being done sequentially with one agent at a time, unless in the opinion of the investigator, both agents required concurrent dose reduction. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02176213
Study type Interventional
Source Icahn School of Medicine at Mount Sinai
Contact
Status Completed
Phase Phase 2
Start date June 2014
Completion date May 7, 2019

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