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Treatment with ibritumomab tiuxetan radioimmunotherapy in patients with rituximab-refractory follicular non-Hodgkin's lymphoma

Identifieur interne : 00E764 ( Main/Repository ); précédent : 00E763; suivant : 00E765

Treatment with ibritumomab tiuxetan radioimmunotherapy in patients with rituximab-refractory follicular non-Hodgkin's lymphoma

Auteurs : RBID : Pascal:02-0468942

Descripteurs français

English descriptors

Abstract

Purpose: Rituximab is commonly used as a single agent or in combination therapy for non-Hodgkin's lymphoma (NHL). Ibritumomab tiuxetan radioimmunotherapy targets the same antigen as rituximab and has demonstrated efficacy in rituximab-naive NHL. This study evaluated ibritumomab tiuxetan in the treatment of rituximab-refractory follicular NHL. Patients and Methods: Eligible patients were refractory to rituximab; this was defined as no objective response to rituximab (375 mg/m2 weekly for 4 weeks) or time to progression (TTP) of ≤ 6 months. The ibritumomab tiuxetan treatment regimen consisted of pretreatment with rituximab (250 mg/m2 intravenously on days 1 and 8) to deplete peripheral blood B cells, then yttrium-90 ibritumomab tiuxetan (0.4 mCi/ kg; maximum, 32 mCi) intravenously on day 8, administered on an outpatient basis. An imaging/dosimetry dose of indium-111 ibritumomab tiuxetan (5 mCi) was injected after rituximab (day 1) in 28 patients. Results: Fifty-seven patients were treated. The median age was 54 years, 74% had tumors ≥ 5 cm, and all were extensively pretreated (median, four prior therapies; range, one to nine). The estimated radiation-absorbed doses to healthy organs were below the study-defined limit in all patients studied with dosimetry. The overall response rate for the 54 patients with follicular NHL was 74% (15% complete responses and 59% partial responses). The Kaplan-Meier-estimated TTP was 6.8 months (range, 1.1 to ≥ 25.9 months) for all patients and 8.7 months for responders. Adverse events were primarily hematologic; the incidence of grade 4 neutropenia, thrombocytopenia, and anemia was 35%, 9%, and 4%, respectively. Conclusion: Ibritumomab tiuxetan radioimmunotherapy is effective in rituximab-refractory patients. The only significant toxicity is hematologic.

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Pascal:02-0468942

Le document en format XML

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<title xml:lang="en" level="a">Treatment with ibritumomab tiuxetan radioimmunotherapy in patients with rituximab-refractory follicular non-Hodgkin's lymphoma</title>
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<name sortKey="Witzig, Thomas E" uniqKey="Witzig T">Thomas E. Witzig</name>
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<country>États-Unis</country>
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<wicri:noRegion>Johns Hopkins Oncology Center</wicri:noRegion>
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<s1>Northwestern University/Robert H. Lurie Cancer Center</s1>
<s2>Chicago, IL</s2>
<s3>USA</s3>
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<country>États-Unis</country>
<wicri:noRegion>Northwestern University/Robert H. Lurie Cancer Center</wicri:noRegion>
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<s1>University of California</s1>
<s2>Los Angeles</s2>
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<country>États-Unis</country>
<wicri:noRegion>University of California</wicri:noRegion>
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<s1>IDEC Pharmaceaticals Corporation</s1>
<s2>San Diego, CA</s2>
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<wicri:noRegion>Roswell Park Cancer Institute</wicri:noRegion>
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<s2>Birmingham, AL</s2>
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<country>États-Unis</country>
<wicri:noRegion>University of Alabama</wicri:noRegion>
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<s2>Indianapolis, IN</s2>
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<wicri:noRegion>Indiana Cancer Pavilion</wicri:noRegion>
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<name sortKey="Flinn, Ian W" uniqKey="Flinn I">Ian W. Flinn</name>
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<author>
<name sortKey="Gordon, Leo I" uniqKey="Gordon L">Leo I. Gordon</name>
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<author>
<name sortKey="Emmanouilides, Christos" uniqKey="Emmanouilides C">Christos Emmanouilides</name>
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<author>
<name sortKey="Czuczman, Myron S" uniqKey="Czuczman M">Myron S. Czuczman</name>
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<author>
<name sortKey="Saleh, Mansoor N" uniqKey="Saleh M">Mansoor N. Saleh</name>
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<author>
<name sortKey="Cripe, Larry" uniqKey="Cripe L">Larry Cripe</name>
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<author>
<name sortKey="Wiseman, Gregory" uniqKey="Wiseman G">Gregory Wiseman</name>
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<author>
<name sortKey="Olejnik, Teresa" uniqKey="Olejnik T">Teresa Olejnik</name>
</author>
<author>
<name sortKey="Multani, Pratik S" uniqKey="Multani P">Pratik S. Multani</name>
</author>
<author>
<name sortKey="White, Christine A" uniqKey="White C">Christine A. White</name>
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<date when="2002">2002</date>
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<idno type="ISSN">0732-183X</idno>
<title level="j" type="abbreviated">J. clin. oncol.</title>
<title level="j" type="main">Journal of clinical oncology</title>
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<term>Complication</term>
<term>Follicular lymphoma</term>
<term>Human</term>
<term>Ibritumomab tiuxetan</term>
<term>Immunoconjugate</term>
<term>Immunoradiotherapy</term>
<term>Monoclonal antibody</term>
<term>Radioisotope</term>
<term>Treatment</term>
<term>Yttrium</term>
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<keywords scheme="Pascal" xml:lang="fr">
<term>Lymphome folliculaire</term>
<term>Ibritumomab tiuxétan</term>
<term>Anticorps monoclonal</term>
<term>Immunoconjugué</term>
<term>Immunoradiothérapie</term>
<term>Yttrium</term>
<term>Radioisotope</term>
<term>Traitement</term>
<term>Complication</term>
<term>Homme</term>
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<div type="abstract" xml:lang="en">Purpose: Rituximab is commonly used as a single agent or in combination therapy for non-Hodgkin's lymphoma (NHL). Ibritumomab tiuxetan radioimmunotherapy targets the same antigen as rituximab and has demonstrated efficacy in rituximab-naive NHL. This study evaluated ibritumomab tiuxetan in the treatment of rituximab-refractory follicular NHL. Patients and Methods: Eligible patients were refractory to rituximab; this was defined as no objective response to rituximab (375 mg/m
<sup>2</sup>
weekly for 4 weeks) or time to progression (TTP) of ≤ 6 months. The ibritumomab tiuxetan treatment regimen consisted of pretreatment with rituximab (250 mg/m
<sup>2</sup>
intravenously on days 1 and 8) to deplete peripheral blood B cells, then yttrium-90 ibritumomab tiuxetan (0.4 mCi/ kg; maximum, 32 mCi) intravenously on day 8, administered on an outpatient basis. An imaging/dosimetry dose of indium-111 ibritumomab tiuxetan (5 mCi) was injected after rituximab (day 1) in 28 patients. Results: Fifty-seven patients were treated. The median age was 54 years, 74% had tumors ≥ 5 cm, and all were extensively pretreated (median, four prior therapies; range, one to nine). The estimated radiation-absorbed doses to healthy organs were below the study-defined limit in all patients studied with dosimetry. The overall response rate for the 54 patients with follicular NHL was 74% (15% complete responses and 59% partial responses). The Kaplan-Meier-estimated TTP was 6.8 months (range, 1.1 to ≥ 25.9 months) for all patients and 8.7 months for responders. Adverse events were primarily hematologic; the incidence of grade 4 neutropenia, thrombocytopenia, and anemia was 35%, 9%, and 4%, respectively. Conclusion: Ibritumomab tiuxetan radioimmunotherapy is effective in rituximab-refractory patients. The only significant toxicity is hematologic.</div>
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<s0>Purpose: Rituximab is commonly used as a single agent or in combination therapy for non-Hodgkin's lymphoma (NHL). Ibritumomab tiuxetan radioimmunotherapy targets the same antigen as rituximab and has demonstrated efficacy in rituximab-naive NHL. This study evaluated ibritumomab tiuxetan in the treatment of rituximab-refractory follicular NHL. Patients and Methods: Eligible patients were refractory to rituximab; this was defined as no objective response to rituximab (375 mg/m
<sup>2</sup>
weekly for 4 weeks) or time to progression (TTP) of ≤ 6 months. The ibritumomab tiuxetan treatment regimen consisted of pretreatment with rituximab (250 mg/m
<sup>2</sup>
intravenously on days 1 and 8) to deplete peripheral blood B cells, then yttrium-90 ibritumomab tiuxetan (0.4 mCi/ kg; maximum, 32 mCi) intravenously on day 8, administered on an outpatient basis. An imaging/dosimetry dose of indium-111 ibritumomab tiuxetan (5 mCi) was injected after rituximab (day 1) in 28 patients. Results: Fifty-seven patients were treated. The median age was 54 years, 74% had tumors ≥ 5 cm, and all were extensively pretreated (median, four prior therapies; range, one to nine). The estimated radiation-absorbed doses to healthy organs were below the study-defined limit in all patients studied with dosimetry. The overall response rate for the 54 patients with follicular NHL was 74% (15% complete responses and 59% partial responses). The Kaplan-Meier-estimated TTP was 6.8 months (range, 1.1 to ≥ 25.9 months) for all patients and 8.7 months for responders. Adverse events were primarily hematologic; the incidence of grade 4 neutropenia, thrombocytopenia, and anemia was 35%, 9%, and 4%, respectively. Conclusion: Ibritumomab tiuxetan radioimmunotherapy is effective in rituximab-refractory patients. The only significant toxicity is hematologic.</s0>
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