Source: FDA, National Drug Code (US) Revision Year: 2023
RYSTIGGO is indicated for the treatment of generalized myasthenia gravis (gMG) in adult patients who are anti-acetylcholine receptor (AChR) or anti-muscle-specific tyrosine kinase (MuSK) antibody positive.
Because RYSTIGGO causes transient reduction in IgG levels, immunization with live-attenuated or live vaccines is not recommended during treatment with RYSTIGGO. Evaluate the need to administer age-appropriate immunizations according to immunization guidelines before initiation of a new treatment cycle with RYSTIGGO [see Dosage and Administration (2.2) and Warnings and Precautions (5.1)].
The recommended dosage of RYSTIGGO is based on body weight, as shown below in Table 1.
Table 1. Recommended Dose Based on Body Weight:
Body Weight of Patient | Dose | Volume to be Infused |
---|---|---|
Less than 50 kg | 420 mg | 3 mL |
50 kg to less than 100 kg | 560 mg | 4 mL |
100 kg and above | 840 mg | 6 mL |
Administer the recommended dosage as a subcutaneous infusion using an infusion pump at a rate of up to 20 mL/hour once weekly for 6 weeks. For detailed preparation and administration instructions, see Preparation and Administration Instructions (2.3).
Administer subsequent treatment cycles based on clinical evaluation. The safety of initiating subsequent cycles sooner than 63 days from the start of the previous treatment cycle has not been established.
If a scheduled dose is missed, RYSTIGGO may be administered up to 4 days after the scheduled time point. Thereafter, resume the original dosing schedule until the treatment cycle is completed.
RYSTIGGO should only be prepared and infused by a healthcare provider.
RYSTIGGO is for subcutaneous administration only using an infusion pump. Refer to the infusion pump manufacturer’s instructions for full preparation and administration information. It is recommended to use pumps where the administered volume can be pre-set as each vial contains excess volume for priming of the infusion line.
The following criteria are recommended for administration of RYSTIGGO:
Read the instructions below before preparing and administering RYSTIGGO solution.
Store vials refrigerated at 36°F to 46°F (2°C to 8°C) in the original carton to protect from light until the time of use. Do not freeze. Do not shake.
If needed, vials may be stored at room temperature up to 77°F (25°C) for a single period of up to 30 days in the original carton to protect the vial from light. Once a vial has been stored at room temperature, it should not be returned to the refrigerator. The discard date is 30 days after removal of the vial from the refrigerator. Write the discard date in the space provided on the carton. Discard the vial if not used within 30 days or if the expiration date has passed, whichever occurs first.
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