Tranostat

# Tranostat ## Overview - **Classification**: Novel Beta-Lactam Antibiotic - **Mechanism**: Inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), leading to bacterial cell lysis and death. ## Primary Indications 1. **Complicated Urinary Tract Infections (cUTI)** - Treatment of infections caused by susceptible organisms. 2. **Hospital-Acquired Pneumonia (HAP)** - Empiric or directed therapy for severe respiratory infections. 3. **Complicated Skin and Soft Tissue Infections (cSSTI)** - Management of deep-seated or extensive skin infections. ## Adult Dosing ### Standard Dosing **Complicated Urinary Tract Infections (cUTI)** - **Dose**: **500 mg** - **Frequency**: Every **8 hours (q8h)** - **Route**: Intravenous (IV) or Oral (PO) for step-down therapy - **Duration**: 7-14 days depending on infection severity **Hospital-Acquired Pneumonia (HAP)** - **Dose**: **1000 mg** - **Frequency**: Every **8 hours (q8h)** - **Route**: Intravenous (IV) - **Duration**: 7-14 days **Complicated Skin and Soft Tissue Infections (cSSTI)** - **Dose**: **750 mg** - **Frequency**: Every **8 hours (q8h)** - **Route**: Intravenous (IV) or Oral (PO) - **Duration**: 7-14 days ### Dose Adjustments - **Renal Impairment**: - CrCl **30-50 mL/min**: Administer **50% of the usual dose** q8h. - CrCl **<30 mL/min**: Administer **25% of the usual dose** q12h or consider alternative. - Hemodialysis: Administer dose after dialysis. - **Hepatic Impairment**: No dose adjustment required for mild-moderate impairment. Use with caution in severe impairment. - **Elderly Patients**: Start at the lower end of the dosing range due to potential decreased renal function. ## Pediatric Dosing ### Neonates (0-28 days) - **Dose**: **20 mg/kg/dose** - **Frequency**: Every **12 hours (q12h)** - **Maximum**: Not to exceed **40 mg/kg/day** - **Special Notes**: Monitor renal function closely. IV route only. ### Infants (1-12 months) - **Dose**: **25 mg/kg/dose** - **Frequency**: Every **8 hours (q8h)** - **Maximum**: Not to exceed **75 mg/kg/day** - **Special Notes**: IV route preferred for severe infections; oral suspension available. ### Children (1-12 years) - **Dose**: **30 mg/kg/dose** - **Frequency**: Every **8 hours (q8h)** - **Maximum**: **1.5 grams/dose** or **4.5 grams/day**. Do not exceed adult maximums. - **Special Notes**: IV or oral (chewable tablets, suspension) formulations available. ### Adolescents (13-18 years) - **Dose**: Use adult dosing guidelines based on indication. - **Maximum**: Adult maximum doses apply (e.g., **4.5 grams/day**). - **Special Notes**: Consider weight-based dosing if weight is significantly lower than average adult. ## Safety Information ### Contraindications - **Absolute**: Known severe hypersensitivity to Tranostat or other beta-lactam antibiotics. - **Absolute**: History of anaphylaxis to any penicillin or cephalosporin. ### Common Adverse Effects - **Very Common (>10%)**: Diarrhea, Nausea, Headache - **Common (1-10%)**: Vomiting, Rash, Abdominal pain, Dizziness - **Serious but Rare**: Clostridioides difficile-associated diarrhea (CDAD), Seizures, Severe hypersensitivity reactions (e.g., SJS). ### Key Drug Interactions - **Warfarin**: May enhance anticoagulant effect. Monitor INR closely, adjust warfarin dose. - **Probenecid**: Increases Tranostat serum concentrations. Avoid co-administration if possible. - **Valproic Acid/Divaproex**: May reduce valproate levels, leading to loss of seizure control. Monitor valproate levels, consider alternative anticonvulsant. ## Monitoring & Follow-up - **Before Treatment**: Obtain culture and sensitivity tests. Assess renal and hepatic function. - **During Treatment**: Monitor for clinical improvement. Monitor for adverse effects (GI upset, rash). - If prolonged therapy or renal/hepatic impairment: Periodically monitor renal (BUN, Cr) and hepatic (LFTs) function. - **Clinical Signs**: Watch for signs of superinfection (e.g., oral thrush, vaginal yeast infection, severe diarrhea). ## Clinical Pearls - 💡 **Administration**: Oral formulations can be taken with or without food. IV infusions should be given over **30-60 minutes**. - 💡 **Completing Therapy**: Advise patients to complete the full course of antibiotics, even if symptoms improve. - 💡 **Rash vs. Allergy**: Differentiate between a mild drug rash and a severe hypersensitivity reaction. Discontinue immediately for severe reactions. - 💡 **CDAD Risk**: Counsel patients on the risk of C. difficile infection; seek medical attention for persistent, watery diarrhea. > **⚠️ Important**: This information is for educational purposes only. Always consult current prescribing information, local guidelines, and clinical judgment before prescribing.