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Drug Safety-related Labeling Changes (SrLC)

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BORTEZOMIB (NDA-209191)

(BORTEZOMIB)

Safety-related Labeling Changes Approved by FDA Center for Drug Evaluation and Research (CDER)

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12/09/2022 (SUPPL-3)

Approved Drug Label (PDF)

5 Warnings and Precautions

5.7 Thrombocytopenia/Neutropenia

Additions and/or revisions underlined:

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In the combination study of bortezomib with rituximab, cyclophosphamide, doxorubicin and prednisone (VcR-CAP) in previously untreated mantle cell lymphoma patients, the incidence of thrombocytopenia (greater than or equal to Grade 4) was 32% vs 1% for the rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP) arm as shown in Table 12. The incidence of bleeding events (greater than or equal to Grade 3) was 1.7% in the VcR-CAP arm (four patients) and was 1.2% in the R-CHOP arm (three patients).

Platelet transfusions were given to 23% of the patients in the VcR-CAP arm and 3% of the patients in the R-CHOP arm.

The incidence of neutropenia (greater than or equal to Grade 4) was 70% in the VcR-CAP arm and was 52% in the R-CHOP arm. The incidence of febrile neutropenia (greater than or equal to Grade 4) was 5% in the VcR-CAP arm and was 6% in the R-CHOP arm. Myeloid growth factor support was provided at a rate of 78% in the VcR-CAP arm and 61% in the R-CHOP arm.

6 Adverse Reactions

6.1 Clinical Trials Experience

Additions and/or revisions underlined:

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Safety Experience from the Clinical Trial in Patients with Previously Untreated Mantle Cell Lymphoma Table 12 describes safety data from 240 patients with previously untreated mantle cell lymphoma who received bortezomib (1.3 mg/m2) administered intravenously in combination with rituximab (375 mg/m2), cyclophosphamide (750 mg/m2), doxorubicin (50 mg/m2), and prednisone (100 mg/m2) (VcR-CAP) in a prospective randomized study.

Infections were reported for 31% of patients in the VcR-CAP arm and 23% of the patients in the comparator (rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone [R-CHOP]) arm, including the predominant preferred term of pneumonia (VcR-CAP 8% vs R-CHOP 5%).

Table 12: Most Commonly Reported Adverse Reactions (greater than or equal to 5%) with Grades 3 and greater than or equal to 4 Intensity in the Previously Untreated Mantle Cell Lymphoma Study

Please refer to label to view Table 12

The incidence of herpes zoster reactivation was 4.6% in the VcR-CAP arm and 0.8% in the R-CHOP arm. Antiviral prophylaxis was mandated by protocol amendment.

The incidences of Grade greater than or equal to 3 bleeding events were similar between the two arms (four patients in the VcR-CAP arm and three patients in the R-CHOP arm). All of the Grade greater than or equal to 3 bleeding events resolved without sequelae in the VcR-CAP arm.

Adverse reactions leading to discontinuation occurred in 8% of patients in VcR-CAP group and 6% of patients in R-CHOP group. In the VcR-CAP group, the most commonly reported adverse reaction leading to discontinuation was peripheral sensory neuropathy (1%; three patients). The most commonly reported adverse reaction leading to discontinuation in the R-CHOP group was febrile neutropenia (<1%; two patients).

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