Multiple Myeloma Clinical Trial
— LPPOfficial title:
Treatment of Primary Plasma Cell Leukaemia in Subjects Under the Age of 70: Phase II Multicentre Study
Plasma cell leukaemia is a rare variety of multiple myeloma with a poor prognosis. Plasma
cell leukaemia is defined as: at least 2,000 circulating plasma cells per µL for a blood
leukocyte count higher than 10,000/µL or 20% of plasma cells for a leukocyte count less than
10,000/µL. Plasma cell leukaemia can be either primary, when it constitutes the first
manifestation of the disease, or secondary in the setting of relapsed/refractory multiple
myeloma. Primary plasma cell leukaemia (PPL) is a rare disease, representing only 1 to 2% of
all cases of multiple myelomas at diagnosis. As the annual incidence of multiple myeloma in
France is about 4,000 new cases, an estimated 40 to 80 new cases of PPL would be observed
each year.
Few data are currently available in the literature concerning the pathophysiology and
therapeutic management of PPL, and are derived from retrospective series based small numbers
of patients. The prognosis of PPL in response to conventional chemotherapy remains poor with
a median survival of 7 to 14 months. However, longer survivals have been obtained with
intensive therapy and haematopoietic stem cell transplantation (allogeneic or autologous
HSCT).
The investigators propose to perform a prospective study of the management of patients with
PPL under the age of 70 years, in combination with a laboratory study: 12 weeks of induction
chemotherapy by liposomal Bortezomib-Dexamethasone-Doxorubicin (PAD) alternating with
Bortezomib-Dexamethasone-Cyclophosphamide (VCD) for a total of 4 cycles. Peripheral blood
stem cell collection after mobilization by G-CSF will be performed after high-dose
Cyclophosphamide chemotherapy. Autologous HSCT conditioned by high-dose Melphalan will be
performed during the following month for all responding patients. During the 3 months after
this first autologous HSCT, allogeneic HSCT with attenuated conditioning will be proposed in
patients under the age of 66 years in complete remission with a suitable donor, and another
systematic autologous HSCT will be proposed in all other patients. For all patients not
treated by allogeneic HSCT, consolidation/maintenance therapy will be performed 3 months
after the second autologous HSCT: 4 quarterly consolidations with
Bortezomib-Lenalidomide-Dexamethasone (VRD) with maintenance by 2 months of Lenalidomide
between these cycles, for a total duration of one year.
The laboratory assessment will consist of blood and bone marrow samples systematically
obtained at diagnosis for plasma cell phenotyping by cytometry, cytogenetics, FISH, study of
the gene expression profile and SNParray. A DNA bank and plasma bank will be constituted.
The investigators also propose to study residual disease by cytometry (after the first
autologous HSCT, before and at the end of the consolidation/maintenance phase), as it
increasingly appears to have a major impact on survival in multiple myeloma.
Status | Completed |
Enrollment | 40 |
Est. completion date | September 2016 |
Est. primary completion date | July 2016 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years to 70 Years |
Eligibility |
Inclusion Criteria: - Patient with primary plasma cell leukaemia corresponding to the International Myeloma Working Group definition. - Patient not previously treated apart from a short course of corticosteroid therapy (dexamethasone 40 mg/day for 4 days). - Age = 18 years and < 70 years. - Patient able to provide signed informed consent. - Effective contraception when justified (oral contraception/protected intercourse). Exclusion Criteria: - Consent not obtained. - Patient under judicial protection, or permanent or temporary guardianship. - Previously treated multiple myeloma, secondary plasma cell leukaemia. - ECOG performance status > 2. - History of severe psychiatric illness, severe renal failure not attributable to PPL, heart failure (ejection fraction < 40%), bilirubin > 3N, transaminases or gamma GT > 4N. - Peripheral neuropathy > NCI grade 2. - Contraindication to high-dose corticosteroids, cyclophosphamide and anthracyclines. - Hypersensitivity to bortezomib or lenalidomide. - Pregnant woman or nursing mothers. - Malignant disease except for basal cell carcinoma or cervical carcinoma in situ. - Positive HIV serology; active hepatitis B or C. - Participation in a clinical trial during the 60 days prior to inclusion. - Patient not covered by French national health insurance. |
Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
France | CH Pays d'Aix | Aix-en-Provence | |
France | CHU Amiens | Amiens | |
France | CHU Besançon | Besançon | |
France | CHU Caen | Caen | |
France | CHU Clermont Ferrand | Clermont Ferrand | |
France | CHU Dijon | Dijon | |
France | CH Dunkerque | Dunkerque | |
France | CHRU Lille | Lille | |
France | Hospices Civils de Lyon | Lyon | |
France | CHU Nancy | Nancy | |
France | CHU Nantes | Nantes | |
France | CHU Nice | Nice | |
France | AP-HP | Paris | |
France | CHU Poitiers | Poitiers | |
France | CHU Rennes | Rennes | |
France | CHU Strasbourg | Strasbourg | |
France | CHU Toulouse | Toulouse | |
France | CHU Tours | Tours |
Lead Sponsor | Collaborator |
---|---|
Centre Hospitalier Universitaire, Amiens |
France,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Disease-free survival | 3 years | Yes |
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