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Zavesca

Side Effects & Drug Interactions
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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

Flatulence

29

44

Abdominal Pain

18

50

Nausea

14

22

Vomiting

4

11

Bloating

0

6

Anorexia

7

0

Dyspepsia

7

0

Epigastric pain not food-related

0

6

Metabolic and Nutritional Disorders

Weight Decrease

39

67

Central and Peripheral Nervous System

Headache

21

22

Tremor

11

11

Dizziness

0

11

Cramps legs

4

11

Paresthesia

7

0

Migraine

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

Constipation

8

0

25

Nausea

8

0

8

Mouth dry

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

Back pain

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

Menstrual irregularity

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).

Brand Name: Zavesca
Generic Name: Miglustat

Report Problems to the Food and Drug Administration

 

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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