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Givinostat: Drug information

Givinostat: Drug information
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For additional information see "Givinostat: Pediatric drug information" and "Givinostat: Patient drug information"

For abbreviations, symbols, and age group definitions show table
Brand Names: US
  • Duvyzat
Pharmacologic Category
  • Histone Deacetylase (HDAC) Inhibitor
Dosing: Adult

Dosage guidance:

Safety: Do not initiate if platelets <150 × 109 L.

Dosing: Dosing based on actual body weight.

Duchenne muscular dystrophy

Duchenne muscular dystrophy:

Oral:

40 to <60 kg: 44.3 mg (5 mL) twice daily.

≥60 kg: 53.2 mg (6 mL) twice daily.

Dosing: Kidney Impairment: Adult

There are no dosage adjustments provided in the manufacturer’s labeling (has not been studied).

Dosing: Liver Impairment: Adult

There are no dosage adjustments provided in the manufacturer’s labeling (has not been studied); however, givinostat is cleared hepatically, so it may accumulate in cases of hepatic impairment.

Dosing: Adjustment for Toxicity: Adult

Signs or symptoms of thrombocytopenia: Perform platelet count and hold treatment until platelet count is confirmed.

Platelet count <150 × 109/L (2 assessments, 1 week apart), moderate to severe diarrhea, OR fasting triglycerides >300 mg/dL (2 assessments, 1 week apart):

40 kg to <60 kg: Reduce dose to 31 mg (3.5 mL) twice daily; if symptoms persist on the 31 mg dose, reduce dose to 26.6 mg (3 mL) twice daily; if symptoms persist on the 26.6 mg dose, discontinue treatment.

≥60 kg: Reduce dose to 39.9 mg (4.5 mL) twice daily; if symptoms persist on the 39.9 mg dose, reduce dose to 35.4 mg (4 mL) twice daily; if symptoms persist on the 35.4 mg dose, discontinue treatment.

QTc >500 msec or change from baseline is >60 msec: Withhold treatment.

Dosing: Older Adult

Refer to adult dosing.

Dosing: Pediatric

(For additional information see "Givinostat: Pediatric drug information")

Dosage guidance:

Safety: Obtain baseline platelet count; do not initiate treatment unless baseline platelet count ≥150 × 109/L.

Duchenne muscular dystrophy

Duchenne muscular dystrophy: Note: Dose based on actual body weight.

Children ≥6 years and Adolescents:

10 to <20 kg: Oral: 22.2 mg twice daily.

20 to <40 kg: Oral: 31 mg twice daily.

40 to <60 kg: Oral: 44.3 mg twice daily.

≥60 kg: Oral: 53.2 mg twice daily.

Dosage adjustment for concomitant therapy: Significant drug interactions exist, requiring dose/frequency adjustment or avoidance. Consult drug interactions database for more information.

Dosing adjustment for toxicity:

Platelets <150 × 109/L on 2 assessments 1 week apart, moderate to severe diarrhea, or fasting triglycerides >300 mg/dL on 2 assessments 1 week apart: Consider treatment interruption prior to dosage modification based on severity of adverse drug reaction. For initial dosage modification, follow recommendations for first dosage modification; if adverse reaction persists after first dosage modification, follow recommendations for second dosage modification. Treatment should be permanently discontinued if adverse drug reaction worsens despite dosage modification or if adverse reaction continues after second dosage modification.

First dosage modification: Note: Dose based on actual body weight:

Children ≥6 years and Adolescents:

10 to <20 kg: Oral: 17.7 mg twice daily.

20 to <40 kg: Oral: 22.2 mg twice daily.

40 to <60 kg: Oral: 31 mg twice daily.

≥60 kg: Oral: 39.9 mg twice daily.

Second dosage modification: Note: Dose based on actual body weight:

Children ≥6 years and Adolescents:

10 to <20 kg: Oral: 13.3 mg twice daily.

20 to <40 kg: Oral: 17.7 mg twice daily.

40 to <60 kg: Oral: 26.6 mg twice daily.

≥60 kg: Oral: 35.4 mg twice daily.

QT prolongation: Children ≥6 years and Adolescents: QTc interval >500 ms or the change is >60 ms from baseline: Hold givinostat.

Dosing: Kidney Impairment: Pediatric

There are no dosing adjustments provided in the manufacturer's labeling (has not been studied); renal excretion is not a significant route of elimination and should not affect drug exposure.

Dosing: Liver Impairment: Pediatric

There are no dosing adjustments provided in the manufacturer's labeling (has not been studied). Givinostat is primarily eliminated via hepatic metabolism; increased exposure is expected in patients with liver impairment.

Adverse Reactions

The following adverse drug reactions and incidences are derived from product labeling unless otherwise specified.

>10%:

Endocrine & metabolic: Hypertriglyceridemia (23%)

Gastrointestinal: Abdominal pain (34%), diarrhea (37%), nausea and vomiting (32%)

Hematologic & oncologic: Thrombocytopenia (33%)

Miscellaneous: Fever (13%)

1% to 10%:

Dermatologic: Skin rash (9%)

Endocrine & metabolic: Hypothyroidism (≤5%), increased thyroid stimulating hormone level (≤5%)

Gastrointestinal: Constipation (7%), decreased appetite (7%)

Nervous system: Fatigue (8%)

Neuromuscular & skeletal: Arthralgia (8%), myalgia (9%)

Frequency not defined: Hematologic & oncologic: Decreased hemoglobin, decreased neutrophils

Contraindications

There are no contraindications listed in the manufacturer's labeling.

Warnings/Precautions

Concerns related to adverse effects:

• Cardiac abnormalities: May prolong the QT interval. Avoid in those at risk for ventricular arrhythmias (eg, congenital long QT syndrome, coronary artery disease, electrolyte abnormalities, concomitant use of other QT-prolonging medications).

• GI effects: Can cause diarrhea, nausea, vomiting, and abdominal pain. In studies, symptoms generally occurred within the first 2 month of treatment. Treat with antiemetics, antidiarrheal medications, fluid, and electrolytes.

• Hematological changes: Can cause dose-related thrombocytopenia, decreased Hb, and neutropenia. In studies, the maximum decrease in platelets occurred within the first 2 months of therapy.

• Increased triglycerides: Can cause elevated triglycerides.

Dosage Forms: US

Excipient information presented when available (limited, particularly for generics); consult specific product labeling.

Suspension, Oral, as hydrochloride:

Duvyzat: 8.86 mg/mL (140 mL) [contains saccharin sodium, sodium benzoate; peaches & cream flavor]

Generic Equivalent Available: US

No

Pricing: US

Suspension (Duvyzat Oral)

8.86 mg/mL (per mL): $328.24

Disclaimer: A representative AWP (Average Wholesale Price) price or price range is provided as reference price only. A range is provided when more than one manufacturer's AWP price is available and uses the low and high price reported by the manufacturers to determine the range. The pricing data should be used for benchmarking purposes only, and as such should not be used alone to set or adjudicate any prices for reimbursement or purchasing functions or considered to be an exact price for a single product and/or manufacturer. Medi-Span expressly disclaims all warranties of any kind or nature, whether express or implied, and assumes no liability with respect to accuracy of price or price range data published in its solutions. In no event shall Medi-Span be liable for special, indirect, incidental, or consequential damages arising from use of price or price range data. Pricing data is updated monthly.

Administration: Adult

Oral: Administer with food. Shake for 30 seconds before use. Measure dose using the provided graduated oral syringe.

Administration: Pediatric

Oral: Shake suspension for ≥30 seconds by inverting bottle by 180 degrees before use. Administer with food. Administer with graduated oral syringe provided; do not use a household teaspoon (overdosage may occur).

Missed dose: Do not take a double or extra doses.

Hazardous Drugs Handling Considerations

This medication is not on the NIOSH (2024) list; however, it may meet the criteria for a hazardous drug. Givinostat may cause teratogenicity, reproductive toxicity, and has a structural and/or toxicity profile similar to existing hazardous agents.

Use appropriate precautions for receiving, handling, storage, preparation, dispensing, transporting, administration, and disposal. Follow NIOSH and USP 800 recommendations and institution-specific policies/procedures for appropriate containment strategy (NIOSH 2023; NIOSH 2024; USP-NF 2020).

Note: Facilities may perform risk assessment of some hazardous drugs to determine if appropriate for alternative handling and containment strategies (USP-NF 2020). Refer to institution-specific handling policies/procedures.

Use: Labeled Indications

Duchenne muscular dystrophy: Treatment of Duchenne muscular dystrophy in patients ≥6 years of age.

Medication Safety Issues
Sound-alike/look-alike issues:

Givinostat may be confused with Givosiran.

Metabolism/Transport Effects

Substrate of BCRP, P-glycoprotein (Minor); Note: Assignment of Major/Minor substrate status based on clinically relevant drug interaction potential;

Drug Interactions

Note: Interacting drugs may not be individually listed below if they are part of a group interaction (eg, individual drugs within “CYP3A4 Inducers [Strong]” are NOT listed). For a complete list of drug interactions by individual drug name and detailed management recommendations, use the drug interactions program by clicking on the “Launch drug interactions program” link above.

CYP3A4 Substrates (Narrow Therapeutic Index/Sensitive with Inhibitors): Givinostat may increase serum concentration of CYP3A4 Substrates (Narrow Therapeutic Index/Sensitive with Inhibitors). Risk C: Monitor

Haloperidol: QT-prolonging Agents (Indeterminate Risk - Avoid) may increase QTc-prolonging effects of Haloperidol. Risk C: Monitor

Levoketoconazole: QT-prolonging Agents (Indeterminate Risk - Avoid) may increase QTc-prolonging effects of Levoketoconazole. Management: Monitor for QTc interval prolongation and ventricular arrhythmias when these agents are combined. Patients with additional risk factors for QTc prolongation may be at even higher risk. Risk C: Monitor

OCT2 Substrates (Clinically Relevant with Inhibitors): Givinostat may increase serum concentration of OCT2 Substrates (Clinically Relevant with Inhibitors). Risk C: Monitor

QT-prolonging Agents (Highest Risk): QT-prolonging Agents (Indeterminate Risk - Avoid) may increase QTc-prolonging effects of QT-prolonging Agents (Highest Risk). Management: Monitor for QTc interval prolongation and ventricular arrhythmias when these agents are combined. Patients with additional risk factors for QTc prolongation may be at even higher risk. Risk C: Monitor

Pregnancy Considerations

Adverse events were observed in animal reproduction studies.

Breastfeeding Considerations

It is not known if givinostat is present in breast milk.

According to the manufacturer, the decision to breastfeed during therapy should consider the risk of infant exposure, the benefits of breastfeeding to the infant, and the benefits of treatment to the mother.

Monitoring Parameters

CBC (baseline and every 2 weeks during first 2 months of treatment, then monthly for the next 3 months, then every 3 months thereafter); triglycerides (baseline, at 1 month, 3 months, 6 months, and then every 6 months thereafter); ECG (if underlying cardiac disease or on concomitant medications that prolong QT) (baseline and as clinically appropriate).

Mechanism of Action

Givinostat is a histone deacetylase inhibitor; exact mechanism in Duchenne muscular dystrophy is unknown. The precise mechanism by which givinostat exerts its effect in patients with Duchenne muscular dystrophy is unknown.

Pharmacokinetics (Adult Data Unless Noted)

Absorption: High-fat meals increase absorption; ~40% increase in AUC, ~23% increase in Cmax, and delay in time to peak by 2 to 3 hours.

Protein binding: ~96%.

Metabolism: Hepatic to inactive metabolites.

Half-life elimination: ~6 hours.

Time to peak: 2 to 3 hours.

Excretion: Urine: <3%.

Brand Names: International
International Brand Names by Country
For country code abbreviations (show table)

  • (IT) Italy: Duvyzat
  1. Duvyzat (givinostat) [prescribing information]. Concord, MA: ITF Therapeutics LLC; March 2024.
  2. Hodson L, Ovesen J, Couch J, et al; US Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health. Managing hazardous drug exposures: information for healthcare settings, 2023. https://doi.org/10.26616/NIOSHPUB2023130. Updated April 2023. Accessed December 27, 2024.
  3. Ovesen JL, Sammons D, Connor TH, et al; US Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health. NIOSH list of hazardous drugs in healthcare settings, 2024. https://doi.org/10.26616/NIOSHPUB2025103. Updated December 18, 2024. Accessed December 20, 2024.
  4. United States Pharmacopeia. <800> Hazardous Drugs—Handling in Healthcare Settings. In: USP-NF. United States Pharmacopeia; July 1, 2020. Accessed January 16, 2025. doi:10.31003/USPNF_M7808_07_01
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