Data from FDA - Curated by EPG Health - Last updated 15 June 2018

Indication(s)

1 INDICATIONS AND USAGE TROGARZO, in combination with other antiretroviral(s), is indicated for the treatment of human immunodeficiency virus type 1 (HIV-1) infection in heavily treatment-experienced adults with multidrug resistant HIV-1 infection failing their current antiretroviral regimen. TROGARZO, a CD4-directed post-attachment HIV-1 inhibitor, in combination with other antiretroviral(s), is indicated for the treatment of human immunodeficiency virus type 1 (HIV-1) infection in heavily treatment-experienced adults with multidrug resistant HIV-1 infection failing their current antiretroviral regimen.

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Advisory information

contraindications
4 CONTRAINDICATIONS None. None.
Adverse reactions
6 ADVERSE REACTIONS The following adverse drug reactions are discussed in other sections of the labeling: Immune Reconstitution Inflammatory Syndrome [see Warnings and Precautions (5.1)] The most common adverse reactions (incidence ≥ 5%) were diarrhea, dizziness, nausea, and rash. (6.1) To report SUSPECTED ADVERSE REACTIONS, contact THERA patient supportTM at 1-833-23THERA (1-833-238-4372) or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trial Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. A total of 292 patients with HIV-1 infection have been exposed to TROGARZO IV infusion. Trial TMB-301 The primary safety assessment of TROGARZO is based on 24 weeks of data from Trial TMB-301. TMB-301 was a single-arm trial of TROGARZO which enrolled 40 heavily treatment-experienced subjects with multidrug resistant HIV-1 on a failing HIV treatment regimen. Subjects received a single 2,000 mg IV loading dose of TROGARZO followed seven days later by the initiation of an optimized background regimen (OBR) including at least one agent to which the subjects virus was susceptible. Two weeks after the TROGARZO loading dose, 800 mg of TROGARZO was administered IV. The IV administration of TROGARZO 800 mg was continued every 2 weeks through Week 25. The most common adverse reactions (all Grades) reported in at least 5% of subjects were diarrhea, dizziness, nausea, and rash. Table 2 shows the frequency of adverse reactions occurring in 5% or more of subjects. Table 2. Adverse Reactions (All Grades) Reported in 5% of Subjects Receiving TROGARZO and Optimized Background Regimen for 23 Weeks in Trial TMB-301 % Subjects N=40 Diarrhea 8% Dizziness 8% Nausea 5% RashIncludes pooled terms “rash”, “rash erythematous”, “rash generalized”, “rash macular”, “rash maculopapular”, and “rash papular” 5% Most (90%) of the adverse reactions reported were mild or moderate in severity. Two subjects experienced severe adverse reactions: one subject had a severe rash and one subject developed immune reconstitution inflammatory syndrome manifested as an exacerbation of progressive multifocal leukoencephalopathy. Laboratory Abnormalities Table 3 shows the frequency of laboratory abnormalities (≥ Grade 3) in Trial TMB-301. Table 3. Selected Laboratory Abnormalities (≥ Grade 3) in Trial TMB-301 Laboratory Parameter % Subjects N=40 Bilirubin (≥ 2.6 x ULN) 5% Direct Bilirubin (> ULN) 3% Creatinine (> 1.8x ULN or 1.5x baseline) 10% Blood Glucose (> 250 mg/dL) 3% Lipase (> 3.0 x ULN) 5% Uric Acid (> 12 mg/dL) 3% Hemoglobin (< 8.5 g/dL) 3% Platelets (< 50,000/mm3) 3% Leukocytes (< 1.5 109 cells/L) 5% Neutrophils (< 0.6 109 cells/L) 5% 6.2 Immunogenicity As with all therapeutic proteins, there is potential for immunogenicity. The detection of antibody formation is highly dependent on the sensitivity and specificity of the assay. Additionally, the observed incidence of antibody (including neutralizing antibody) positivity in an assay may be influenced by several factors including assay methodology, sample handling, timing of sample collection, concomitant medications, and underlying disease. For these reasons, comparison of the incidence of antibodies to ibalizumab-uiyk in the studies described below with the incidence of antibodies in other studies or to other products may be misleading. All subjects enrolled in clinical trial TMB-301 and trial TMB-202 (a Phase 2b clinical trial that studied TROGARZO administered intravenously as 2,000 mg every 4 weeks or 800 mg every 2 weeks; the safety and effectiveness of this dosing regimen has not been established), were tested for the presence of anti-ibalizumab antibodies throughout their participation. One sample tested positive with low titer anti-ibalizumab antibodies. No adverse reaction or reduced efficacy was attributed to the positive sample reported in this subject.

Usage information

Dosing and administration
2 DOSAGE AND ADMINISTRATION TROGARZO is administered intravenously (IV) as a single loading dose of 2,000 mg followed by a maintenance dose of 800 mg every 2 weeks after dilution in 250 mL of 0.9% Sodium Chloride Injection, USP. (2.1) 2.1 Recommended Dosage 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. TROGARZO is administered intravenously (IV), after diluting the appropriate number of vials in 250 mL of 0.9% Sodium Chloride Injection, USP. Patients should receive a single loading dose of 2,000 mg followed by a maintenance dose of 800 mg every 2 weeks. Dose modifications of TROGARZO are not required when administered with any other antiretroviral or any other treatments. 2.2 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 10 vials (13.3 mL) Maintenance dose of 800 mg 4 vials (5.32 mL) TROGARZO solution for infusion should be prepared by a trained medical professional using aseptic technique as follows: Remove the flip-off cap from the single-dose vial and wipe 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. 2.3 Administration Diluted TROGARZO solution should be administered by a trained medical professional. Administer TROGARZO as an IV infusion in the cephalic vein of the patient’s right or left arm. If this vein is not accessible, an appropriate vein located elsewhere can be used. Do not administer TROGARZO as an intravenous push or bolus. The duration of the first infusion (loading dose) should be no less than 30 minutes. If no infusion-associated adverse reactions have occurred, the duration of the subsequent infusions (maintenance doses) can be decreased to no less than 15 minutes. After the infusion is complete, flush with 30 mL of 0.9% Sodium Chloride Injection, USP. All patients must be observed for 1 hour after completion of TROGARZO administration for at least the first infusion. If the patient does not experience an infusion-associated adverse reaction, the post-infusion observation time can be reduced to 15 minutes thereafter. 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.
Use in special populations
8 USE IN SPECIFIC POPULATIONS Lactation: Women infected with HIV should be instructed not to breastfeed due to the potential for HIV transmission. (8.2) 8.1 Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to TROGARZO during pregnancy. Healthcare providers are encouraged to register patients by calling the Antiretroviral Pregnancy Registry (APR) at 1–800–258–4263. Risk Summary No adequate human data are available to establish whether or not TROGARZO poses a risk to pregnancy outcomes. Animal reproductive toxicology studies with ibalizumab-uiyk have not been conducted. Monoclonal antibodies, such as ibalizumab-uiyk, are transported across the placenta as pregnancy progresses; therefore, ibalizumab-uiyk has the potential to be transmitted from the mother to the developing fetus. The background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively. 8.2 Lactation Risk Summary The Centers for Disease Control and Prevention recommend that HIV-1-infected mothers in the United States not breastfeed their infants to avoid the risk of postnatal transmission of HIV-1 infection. No data are available regarding the presence of TROGARZO in human milk, the effects on the breastfed child, or the effects on milk production. Human IgG is present in human milk, although published data indicate that antibodies in breast milk do not enter the neonatal or infant circulation system in substantial amounts. Because of the potential for HIV-1 transmission, instruct mothers not to breastfeed if they are receiving TROGARZO. 8.4 Pediatric Use The safety and effectiveness of TROGARZO in pediatric patients have not been established. 8.5 Geriatric Use No studies have been conducted with TROGARZO in geriatric patients.

More information

Category Value
Authorisation number BLA761065
Agency product number LT369U66CE
Orphan designation No
Product NDC 62064-122
Date Last Revised 29-05-2018
Type HUMAN PRESCRIPTION DRUG
RXCUI 2043317
Marketing authorisation holder Theratechnologies Inc.