Xeomin (Page 3 of 12)

2.4 Cervical Dystonia

The recommended initial dose of XEOMIN for cervical dystonia is 120 Units. In a placebo-controlled trial utilizing initial XEOMIN doses of 120 Units and 240 Units, no meaningful difference in effectiveness was demonstrated between the doses [see Clinical Studies (14.3)]. In previously treated patients, their past dose, response to treatment, duration of effect, and adverse event history should be taken into consideration when determining the XEOMIN dose.

In the treatment of cervical dystonia, XEOMIN is usually injected into the sternocleidomastoid, levator scapulae, splenius capitis, scalenus, and/or the trapezius muscle(s) (see Figure 5). This list is not exhaustive, as any of the muscles responsible for controlling head position may require treatment [see Clinical Studies (14.3)]. The dose and number of injection sites in each treated muscle should be individualized based on the number and location of the muscle(s) to be treated, the degree of spasticity/dystonia, muscle mass, body weight, and response to any previous botulinum toxin injections.

The frequency of XEOMIN repeat treatments should be determined by clinical response, but should generally be no more frequent than every 12 weeks [see Clinical Studies (14.3)].

Figure 5: Muscles Involved in Cervical Dsytonia

2.5 Blepharospasm

In treatment-naïve patients, the recommended initial dose of XEOMIN is 50 Units (25 Units per eye). In patients previously treated with a botulinum toxin A, their past dose, response to treatment, duration of effect, and adverse event history should be taken into consideration when determining the XEOMIN dose.

The total dose of XEOMIN should not exceed 100 Units per treatment session (50 Units per eye).

XEOMIN is injected into the lateral and medial orbicularis oculi muscle of the upper lid; lateral canthus and the lateral orbicularis oculi muscle of the lower lid; and the corrugator muscle, if necessary (see Figure 6). The number and location of injections may be changed in response to adverse reactions or based on the patient’s response to treatment, but the total dose should not exceed 50 Units per eye.

Figure 6: Injection Sites for Blepharospasm

The frequency of XEOMIN repeat treatments should be determined by clinical response but should generally be no more frequent than every 12 weeks [see Clinical Studies (14.4)].

2.6 Glabellar Lines

The total recommended XEOMIN dose is 20 Units per treatment session divided into five equal intramuscular injections of 4 Units each. The five injection sites are: two injections in each corrugator muscle and one injection in the procerus muscle.

Retreatment with XEOMIN should be administered no more frequently than every three months.

Figure 7: Injection Sites for Glabellar Lines

2.7 Preparation and Reconstitution Technique

Prior to injection, reconstitute each vial of XEOMIN with sterile, preservative-free 0.9% Sodium Chloride Injection, USP [see Dosage Form and Strengths (3)]. A 20-27 gauge short bevel needle is recommended for reconstitution. Draw up an appropriate amount of preservative-free 0.9% Sodium Chloride Injection, USP into a syringe (see Table 5). Clean the exposed portion of the rubber stopper of the vial with alcohol (70%) prior to insertion of the needle. After vertical insertion of the needle through the rubber stopper, the vacuum will draw the saline into the vial. Gently inject any remaining saline into the vial to avoid foam formation. If the vacuum does not pull the saline into the vial, then XEOMIN must be discarded. Remove the syringe from the vial and mix XEOMIN with the saline by carefully swirling and inverting/flipping the vial – do not shake vigorously. Reconstituted XEOMIN is a clear, colorless solution free of particulate matter. XEOMIN should not be used if the reconstituted solution has a cloudy appearance or contains floccular or particulate matter.

After reconstitution, XEOMIN should be used for only one injection session and for only one patient. Reconstituted XEOMIN solution should be administered within 24 hours after dilution. During this time period, unused reconstituted XEOMIN may be stored in the original container in a refrigerator 2°C -8°C (36°F -46°F) for up to 24 hours until time of use. XEOMIN vials are for single-dose only. Discard any unused portion.

Diluent volumes for reconstitution of XEOMIN are indicated in Table 5.

Table 5: Diluent Volumes for Reconstitution of XEOMIN

Volume of preservative-free 0.9% Sodium Chloride Injection, USP	50 Unit Vial:Resulting dose in Units per 0.1 mL	100 Unit Vial:Resulting dose in Units per 0.1 mL	200 Unit Vial:Resulting dose in Units per 0.1 mL
* When using 8 mL of diluent for a 100 Unit or 200 Unit vial of XEOMIN, complete the following steps: Reconstitute a 100 Unit or 200 Unit vial of XEOMIN with 4 mL of preservative-free 0.9% Sodium Chloride Injection, USP, following instructions above. Withdraw 4 mL of preservative-free 0.9% Sodium Chloride Injection, USP, into an appropriately sized syringe for 8 mL in total. Using the same syringe, draw up the 4 mL of XEOMIN solution from the reconstituted vial and mix gently. † When using 16 mL of diluent for a 200 Unit vial of XEOMIN, complete the following steps: Reconstitute a 200 Unit vial of XEOMIN with 4 mL of preservative-free 0.9% Sodium Chloride Injection, USP, following instructions above. Withdraw 12 mL of preservative-free 0.9% Sodium Chloride Injection, USP, into an appropriately sized syringe for 16 mL in total. Using the same syringe, draw up the 4 mL of XEOMIN solution from the reconstituted vial and mix gently.
0.25 mL	20 Units	–	–
0.5 mL	10 Units	20 Units	40 Units
1 mL	5 Units	10 Units	20 Units
1.25 mL	4 Units	8 Units	16 Units
2 mL	2.5 Units	5 Units	10 Units
2.5 mL	2 Units	4 Units	8 Units
4 mL	1.25 Units	2.5 Units	5 Units
5 mL	1 Unit	2 Units	4 Units
8 mL *	–	1.25 Units	2.5 Units
16 mL †	–	–	1.25 Units