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The purpose of this study is to evaluate the response to pomalidomide and dexamethasone in relapse and refractory MM patients who are progressive and did not achieve at least a partial response to bortezomib and lenalidomide. This study will determine the efficacy and toxicity profile of 2 modalities of pomalidomide in patients with advanced myeloma, previously heavily treated characterized with adverse prognostic and that are in desperate need of novel therapeutics.
Multiple myeloma (MM) is an incurable disease that is characterized by the accumulation of clonal plasma cells in the bone marrow. The median overall survival for patients with MM is approximately 4-5 years. Despite front line treatment approaches, the disease eventually relapses. The recent US Food and Drug Administration (FDA) approvals of bortezomib (2003) and combination lenalidomide plus dexamethasone (2006) therapies for the treatment of previously treated MM has provided effective therapeutic options that give patients with relapsed or refractory MM the prospect for a prolongation of overall and progression-free survival times. However, MM remains an incurable disease. A clear unmet medical need still exists for additional novel therapeutic options for the treatment of previously treated MM.
Pomalidomide belongs to the IMiDs class of compounds which thalidomide is the parent compound and lenalidomide the most recently approved agent. It is derived from thalidomide and shares a number of the beneficial pharmacologic properties with thalidomide. The efficacy of thalidomide has been limited by adverse effects. This toxicity profile seems dose and duration-related, spurring the development of IMiDs, which have the potential of improved potency and reduced toxicity. By modifying the thalidomide structure through the addition of an amino group at the 4 position of the phthaloyl ring to generate pomalidomide, a compound that is up to 50000 times more potent at inhibiting TNF-alpha in vitro than thalidomide was formed.
Recently, preliminary efficacy and safety data from an ongoing phase 2 study, led by Martha Lacy, et al, at Mayo Clinic, were presented at the XII International Myeloma Workshop in Washington DC (01 March 2009). The study highlighted a 63 % objective response and a 5% complete response in patients taking pomalidomide (2 mg daily on days 1-28 of a 28-day cycle) plus dexamethasone (40 mg daily on days 1, 8, 15, 22 of each cycle) including patients with lenalidomide resistant refractory multiple myeloma. The results also showed that the treatment was well tolerated. Based on the encouraging data of this study, a phase 1/2b multi-center, randomized, open-label, dose escalation study (dose level from 2 mg to 5 mg daily on days 1-21 of a 28-day cycle)is conducted to determine the MTD of pomalidomide. This ongoing study will evaluate the safety and efficacy of oral pomalidomide alone, and in combination with dexamethasone, in patients with relapsed and refractory MM. The first results obtained in this study demonstrated that the maximum tolerated dose of pomalidomide was 4 mg once per day and highlighted that pomalidomide has significant efficacy in MM and can be safely administered to myeloma patients. Moreover, there are an increasing number of patients that are refractory or did not responded significantly or experienced significant toxicity to either bortezomib or lenalidomide.
Based on these studies, we hypothesized that these patients might benefit from the combination of pomalidomide and dexamethasone. We have therefore designed a multicenter phase 2 randomized open labelled study to determine response to pomalidomide and dexamethasone in relapse and refractory MM patients who are progressive and did not achieve at least a partial response to bortezomib and lenalidomide. This study will determine the efficacy and toxicity profile of 2 modalities of pomalidomide in patients with advanced myeloma, previously heavily treated characterized with adverse prognostic and that are in desperate need of novel therapeutics. This study will be conducted in accordance with "good clinical practice" (GCP) and all applicable regulatory requirements, including, where applicable, the 2008 version of the Declaration of Helsinki.
Allocation: Randomized, Control: Dose Comparison, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
CHRU-Hôpital Sud, avenue Laennec,
University Hospital, Lille
Published on BioPortfolio: 2014-08-27T03:16:28-0400
Pomalidomide is an approved treatment for refractory multiple myeloma. Toxicity of pomalidomide in the pivotal MM-003 trial, was considerable, with 60% of patients experiencing drug-relate...
PMS period: 09Jun2017 ~ 08Jun2023 Target no.: 600patients indication: POMALYST in combination with dexamethasone is indicated in the treatment of patients with relapsed and refractory mul...
There is a high unmet medical need for an anti-myeloma therapy for RRMM patients previously treated with Lenalidomide and Bortezomib, due to poor prognosis. This observational study focu...
This study will recruit patients currently receiving either lenalidomide or pomalidomide whose disease is relapsing. This is a dose escalation study and the aim is to determine the maximum...
The main purpose of this study is to see whether pomalidomide can help people with myeloma. Researchers also want to find out if pomalidomide is safe and tolerable.
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Following the publication of this article, the authors noted that the pomalidomide dose for the additional SC cohort in Fig. 1 was incorrectly listed. The correct dose for pomalidomide in the addition...
The immunomodulatory drugs (IMiDs) thalidomide, lenalidomide, and pomalidomide, all approved for the treatment of multiple myeloma, induce targeted ubiquitination and degradation of Ikaros (IKZF1) and...
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An asymptomatic and slow-growing PLASMA CELL dyscrasia characterized by presence of MYELOMA PROTEINS and clonal bone marrow plasma cells without end-organ damage (e.g., renal impairment). It is distinguished from MONOCLONAL GAMMOPATHY OF UNDETERMINED SIGNIFICANCE by a much higher risk of progression to symptomatic MULTIPLE MYELOMA.
A rare, aggressive variant of MULTIPLE MYELOMA characterized by the circulation of excessive PLASMA CELLS in the peripheral blood. It can be a primary manifestation of multiple myeloma or develop as a terminal complication during the disease.
Abnormal immunoglobulins characteristic of MULTIPLE MYELOMA.
An abnormal protein with unusual thermosolubility characteristics that is found in the urine of patients with MULTIPLE MYELOMA.
A pyrazine and boronic acid derivative that functions as a reversible PROTEASOME INHIBITOR. It is used as an ANTINEOPLASTIC AGENT in the treatment of MULTIPLE MYELOMA and MANTLE CELL LYMPHOMA.
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