Zavesca
SIDE EFFECTS
Overview
The safety and tolerability of ZAVESCA® have been evaluated in 80 adult type 1 Gaucher disease patients in two open-label uncontrolled and one open-label active controlled trials. All 80 patients in the combined dataset from the clinical studies reported at least one adverse event during their treatment period.
Adverse Reaction Information
Open-Label Uncontrolled Monotherapy Trials
In two open-label, uncontrolled monotherapy trials in adult type 1 Gaucher disease patients treated with ZAVESCA® at a starting dose of 100 mg three times daily (dose range 100 - 200 mg three times daily) for 12 months in 28 patients [Study 1], or at a dose of 50 mg three times daily for 6 months in 18 patients [Study 2], gastrointestinal events were observed in more than 80% of patients either at the outset of treatment, or intermittently during treatment. Diarrhea was observed in approximately 85% of patients. Weight loss has been observed in up to 65% of patients. (see PRECAUTIONS,
General, Diarrhea and Weight Loss).
In the two open-label, uncontrolled monotherapy trials, the Adverse Reactions by WHO body system and preferred term occurring with an incidence of ≥ 5%, are presented in Table 9 below.
| Table 9: Adverse Reactions in ≥ 5% of Patients in Two Open-Label, Uncontrolled Monotherapy Trials of ZAVESCA® | ||
| Incidence of adverse reaction | ||
| Study 1 (starting dose 100 mg three times daily) | Study 2 (50 mg three times daily) | |
| Patients entered in Study (n) | 28 | 18 |
| Body System - Preferred Term | % of patients reporting | %% of patients reporting |
|
Gastrointestinal System | ||
| Diarrhea | 89 | 89 |
| 29 | 44 | |
| 18 | 50 | |
| 14 | 22 | |
| Vomiting | 4 | 11 |
| Bloating | 0 | 6 |
| 7 | 0 | |
| 7 | 0 | |
| Epigastric pain not food-related | 0 | 6 |
|
Metabolic and Nutritional Disorders | ||
| Weight Decrease | 39 | 67 |
|
Central and Peripheral Nervous System | ||
| 21 | 22 | |
| 11 | 11 | |
| 0 | 11 | |
| Cramps legs | 4 | 11 |
| 7 | 0 | |
| 0 | 6 | |
|
Vision Disorders | ||
| Visual Disturbance | 0 | 17 |
|
Musculoskeletal Disorders | ||
| Cramps | 0 | 11 |
|
Platelet, Bleeding, and Clotting Disorders | ||
| Thrombocytopenia | 7 | 6 |
|
Reproductive disorders, female | ||
| Menstrual disorder | 0 | 6 |
Open-Label Active-Controlled Study
In an open-label, active-controlled study, 36 adult type 1 Gaucher disease patients were treated with ZAVESCA®, Cerezyme, or ZAVESCA® + Cerezyme (Study 3). Gastrointestinal adverse events and weight loss were commonly seen in patients exposed to ZAVESCA®. The Adverse Reactions by WHO body system and preferred term occurring with an incidence of ≥ 5%, are presented in Table 10 below.
| Table 10: Adverse Reactions in ≥ 5% of Patients in Open-Label Active Controlled Study | |||
| Incidence of adverse reaction | |||
| ZAVESCA® alone | Cerezyme alone | ZAVESCA® + Cerezyme | |
| Patients entered in Study (n) | 12 % | 12 % | 12 % |
| Body System - Preferred Term | of patients reporting | of patients reporting | of patients reporting |
| Gastrointestinal System | |||
| Diarrhea | 100 | 0 | 83 |
| Abdominal Pain | 67 | 0 | 58 |
| Flatulence | 50 | 0 | 42 |
| 8 | 0 | 25 | |
| Nausea | 8 | 0 | 8 |
| 8 | 0 | 0 | |
| Body as a Whole | |||
| Influenza-Like Symptoms | 0 | 0 | 8 |
| Pain | 0 | 8 | 8 |
| Pain legs | 0 | 0 | 8 |
| Weakness generalized | 17 | 0 | 8 |
| Abdominal distension | 8 | 0 | 8 |
| 8 | 0 | 0 | |
| Abdominal distension gaseous | 8 | 0 | 0 |
| Chills | 0 | 0 | 8 |
| Heaviness in limbs | 8 | 0 | 0 |
| Metabolic and Nutritional Disorders | |||
| Weight Decrease | 67 | 0 | 42 |
| Central and Peripheral Nervous System | |||
| Tremor | 17 | 0 | 33 |
| Dizziness | 8 | 0 | 25 |
| Cramps legs | 8 | 0 | 0 |
| Gait unsteady | 8 | 0 | 0 |
| Numbness localized | 0 | 0 | 8 |
| Shaking | 0 | 0 | 8 |
| Psychiatric disorders | |||
| Appetite absent | 0 | 0 | 8 |
| Jitteriness | 0 | 0 | 8 |
| Memory loss | 8 | 0 | 0 |
| Vision Disorders | |||
| Eye abnormality | 0 | 0 | 8 |
| Visual disturbance | 0 | 0 | 8 |
| Reproductive disorders, female | |||
| 0 | 0 | 8 | |
DRUG INTERACTIONS
While co-administration of ZAVESCA® appeared to increase the clearance of Cerezyme by 70%, these results are not conclusive because of the small number of subjects studied and because patients took variable doses of Cerezyme. Combination therapy with Cerezyme® (imiglucerase) and ZAVESCA® is not indicated (see CLINICAL PHARMACOLOGY, Drug Interactions).
Generic Name: Miglustat
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You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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