Trogarzo Dosage

Generic name: ibalizumab 150mg in 1mL
Dosage form: injection, solution
Drug class: Miscellaneous antivirals

Medically reviewed by Drugs.com. Last updated on Dec 20, 2023.

Recommended Dosage

The recommended dosage regimen is a single loading dose of 2,000 mg followed by a maintenance dose of 800 mg every 2 weeks administered as a diluted intravenous infusion (IV infusion) or undiluted intravenous push (IV push) [see Dosage and Administration (2.2, 2.3)]. TROGARZO is available in a single-dose, 2 mL vial containing 150 mg/mL of ibalizumab-uiyk. Each vial delivers approximately 1.33 mL containing 200 mg of ibalizumab-uiyk. Dose modifications of TROGARZO are not required when administered with any other antiretroviral or any other treatments.

Preparation

Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. Discard vial if solution is cloudy, if there is pronounced discoloration or if there is foreign particulate matter.

See Table 1 for the appropriate number of vials required to prepare both the loading dose of 2,000 mg and the maintenance doses of 800 mg.

Table 1. Recommended TROGARZO Dose and Number of Vials Per Administration
TROGARZO Dose	TROGARZO Vials (Total Volume to be Withdrawn)
Loading dose of 2,000 mg (IV infusion or undiluted IV push)	10 vials (13.3 mL)
Maintenance dose of 800 mg (IV infusion or undiluted IV push)	4 vials (5.32 mL)

TROGARZO solution for IV infusion or IV push should be prepared by a trained medical professional using aseptic technique as follows:

For intravenous infusion

For administration as an IV infusion, the appropriate number of vials are diluted in 250 mL of 0.9% Sodium Chloride Injection, USP.

• Remove the flip-off cap from the single-dose vial and wipe the stopper with an alcohol swab.

• Insert sterile syringe needle into the vial through the center of the stopper and withdraw 1.33 mL from each vial (NOTE: a small residual amount may remain in the vial, discard unused portion) and transfer into a 250 mL intravenous bag of 0.9% Sodium Chloride Injection, USP. Other intravenous diluents must not be used to prepare the TROGARZO solution for infusion.

• Once diluted, the TROGARZO solution should be administered immediately.

• If not administered immediately, store the diluted TROGARZO solution at room temperature (20°C to 25°C, 68°F to 77°F) for up to 4 hours, or refrigerated (2°C to 8°C, 36°F to 46°F) for up to 24 hours. If refrigerated, allow the diluted TROGARZO solution to stand at room temperature (20°C to 25°C, 68°F to 77°F) for at least 30 minutes but no more than 4 hours prior to administration.

• Discard partially used vials or empty vials of TROGARZO and any unused portion of the diluted TROGARZO solution.

For intravenous push

For administration as an IV push, undiluted TROGARZO solution is administered.

• Allow the vials to stand at room temperature for approximately 5 minutes.

• Remove the flip-off cap from the single-dose vial and wipe the stopper with an alcohol swab.

• Insert sterile syringe needle into the vial through the center of the stopper and withdraw 1.33 mL from each vial (NOTE: a small residual amount may remain in the vial, discard unused portion).

• The undiluted TROGARZO solution should be administered immediately.

• Discard partially used vials or empty vials of TROGARZO and any unused portion of the undiluted TROGARZO solution.

Administration

TROGARZO solution should be administered by a trained medical professional.

Administer TROGARZO intravenously (as an IV infusion or IV push) in the cephalic vein of the patients right or left arm. If this vein is not accessible, an appropriate vein located elsewhere can be used. Table 2 outlines the duration of IV infusion or IV push for the loading dose and maintenance dose.

Table 2. Duration of IV Infusion or IV Push
	IV Infusion (Diluted)	IV Push (Undiluted)
Loading Dose 2,000 mg	Over at least 30 minutes	Over at least 90 seconds
Maintenance Dose 800 mg	Over at least 15 minutes	Over at least 30 seconds

After the IV infusion is complete, flush with 30 mL of 0.9% Sodium Chloride Injection, USP.

After the IV push is complete, flush with 2 to 5 mL of 0.9% Sodium Chloride Injection, USP.

All patients must be observed for 1 hour after completion of TROGARZO loading dose as an IV infusion or IV push. If the patient does not experience an infusion-associated adverse reaction, the post-administration observation time for the subsequent maintenance doses (IV infusion or IV push) can be reduced to 15 minutes.

If a maintenance dose (800 mg) of TROGARZO is missed by 3 days or longer beyond the scheduled dosing day, a loading dose (2,000 mg) should be administered as early as possible. Resume maintenance dosing (800 mg) every 14 days thereafter.