Delafloxacin
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sonya Gelfand
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Black Box Warning
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WARNING: SERIOUS ADVERSE REACTIONS INCLUDING TENDINITIS, TENDON RUPTURE, PERIPHERAL NEUROPATHY, CENTRAL NERVOUS SYSTEM EFFECTS AND EXACERBATION OF MYASTHENIA GRAVIS
See full prescribing information for complete Boxed Warning.
Fluoroquinolones have been associated with disabling and potentially irreversible serious adverse reactions that have occurred together, including:
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Overview
Delafloxacin is a Acetylcholine release inhibitor, Adrenergic receptor agonist that is FDA approved for the (type of indication of drug) of a list of indications, separated by commas.. There is a Black Box Warning for this drug as shown here. Common adverse reactions include a list of adverse reactions, separated by commas..
Adult Indications and Dosage
FDA-Labeled Indications and Dosage (Adult)
Condition 1
- Dosing Information
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Condition 2
- Dosing Information
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Off-Label Use and Dosage (Adult)
Guideline-Supported Use
Condition 1
- Developed by: (Organisation)
- Class of Recommendation: (Class) (Link)
- Strength of Evidence: (Category A/B/C) (Link)
- Dosing Information/Recommendation
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Condition 2
- Developed by: (Organisation)
- Class of Recommendation: (Class) (Link)
- Strength of Evidence: (Category A/B/C) (Link)
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Non–Guideline-Supported Use
Condition 1
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Condition 2
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Condition 3
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Pediatric Indications and Dosage
FDA-Labeled Indications and Dosage (Pediatric)
Condition 1
- Dosing Information
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Condition 2
- Dosing Information
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Off-Label Use and Dosage (Pediatric)
Guideline-Supported Use
Condition 1
- Developed by: (Organisation)
- Class of Recommendation: (Class) (Link)
- Strength of Evidence: (Category A/B/C) (Link)
- Dosing Information/Recommendation
- (Dosage)
Condition 2
- Developed by: (Organisation)
- Class of Recommendation: (Class) (Link)
- Strength of Evidence: (Category A/B/C) (Link)
- Dosing Information/Recommendation
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Non–Guideline-Supported Use
Condition 1
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Condition 2
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Condition 3
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Contraindications
CONTRAINDICATIONS
Warnings
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WARNING: SERIOUS ADVERSE REACTIONS INCLUDING TENDINITIS, TENDON RUPTURE, PERIPHERAL NEUROPATHY, CENTRAL NERVOUS SYSTEM EFFECTS AND EXACERBATION OF MYASTHENIA GRAVIS
See full prescribing information for complete Boxed Warning.
Fluoroquinolones have been associated with disabling and potentially irreversible serious adverse reactions that have occurred together, including:
|
Conidition 1
(Description)
Conidition 2
(Description)
Conidition 3
(Description)
Adverse Reactions
Clinical Trials Experience
Central Nervous System
- (list/description of adverse reactions)
Cardiovascular
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Respiratory
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Gastrointestinal
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Hypersensitive Reactions
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Miscellaneous
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Condition 2
Central Nervous System
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Cardiovascular
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Respiratory
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Gastrointestinal
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Hypersensitive Reactions
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Miscellaneous
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Postmarketing Experience
(Description)
Drug Interactions
- Drug 1
- Drug 2
- Drug 3
- Drug 4
- Drug 5
Drug 1
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Drug 2
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Drug 3
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Drug 4
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Drug 5
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Use in Specific Populations
Pregnancy
Pregnancy Category (FDA):
(Description)
Pregnancy Category (AUS):
There is no Australian Drug Evaluation Committee (ADEC) guidance on usage of Delafloxacin in women who are pregnant.
Labor and Delivery
(Description)
Nursing Mothers
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Pediatric Use
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Geriatic Use
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Gender
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Race
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Renal Impairment
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Hepatic Impairment
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Females of Reproductive Potential and Males
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Immunocompromised Patients
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Others
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Administration and Monitoring
Administration
(Oral/Intravenous/etc)
Monitoring
Condition 1
(Description regarding monitoring, from Warnings section)
Condition 2
(Description regarding monitoring, from Warnings section)
Condition 3
(Description regarding monitoring, from Warnings section)
IV Compatibility
There is limited information regarding the compatibility of Delafloxacin and IV administrations.
Overdosage
Acute Overdose
Signs and Symptoms
(Description)
Management
(Description)
Chronic Overdose
Signs and Symptoms
(Description)
Management
(Description)
Pharmacology
Delafloxacin
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Mechanism of Action
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Structure
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Pharmacodynamics
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Pharmacokinetics
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Nonclinical Toxicology
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Clinical Studies
Acute Bacterial Skin and Skin Structure Infections
- A total of 1510 adults with acute bacterial skin and skin structure infections (ABSSSI) were randomized in 2 multicenter, multinational, double-blind, double-dummy, non-inferiority trials. Trial 1 compared delafloxacin 300 mg via intravenous infusion every 12 hours to comparator. In Trial 2, patients received delafloxacin 300 mg via intravenous infusion every12 hours for 6 doses then made a mandatory switch to oral delafloxacin 450 mg every 12 hours. In both studies, the comparator was the intravenous combination of vancomycin 15 mg/kg actual body weight and aztreonam. Aztreonam therapy was discontinued if no gram-negative pathogens were identified in the baseline cultures.
- In Trial 1, 331 patients with ABSSSI were randomized to delafloxacin and 329 patients were randomized to vancomycin plus aztreonam. Patients in this trial had the following infections: cellulitis (39%), wound infection (35%), major cutaneous abscess (25%), and burn infection (1%). The overall mean surface area of the infected lesion as measured by digital planimetry was 307 cm2. The average age of patients was 46 years (range 18 to 94 years). Patients were predominately male (63%) and White (91%); 32% had BMI ≥ 30 kg/m2. The population studied in Trial 1 included a distribution of patients with associated comorbidities such as hypertension (21%), diabetes (9%), and renal impairment (16%; 0.2% with severe renal impairment or ESRD). Current or recent history of drug abuse, including IV drug abuse, was reported by 55% of patients. Bacteremia was documented at baseline in 2% of patients.
- In Trial 2, 423 patients were randomized to delafloxacin and 427 patients were randomized to vancomycin plus aztreonam. Patients in this trial had the following infections: cellulitis (48%), wound infection (26%), major cutaneous abscess (25%), and burn infection (1%). The overall mean surface area of the infected lesion, as measured by digital planimetry, was 353 cm2. The average age of patients was 51 years (range 18 to 93 years). Patients were predominately male (63%) and White (83%); 50 % had a BMI ≥ 30 kg/m2. The population studied in Trial 2 included a distribution of patients with associated comorbidities such as hypertension (31%), diabetes (13%) and renal impairment (16%; 0.2% with severe renal impairment or ESRD). Current or recent history of drug abuse, including IV drug abuse, was reported by 30% of patients. Bacteremia was documented at baseline in 2% of patients.
- In both trials, objective clinical response at 48 to 72 hours post initiation of treatment was defined as a 20% or greater decrease in lesion size as determined by digital planimetry of the leading edge of erythema. Table 5 summarizes the objective clinical response rates in both of these trials.
- In both trials, an investigator assessment of response was made at Follow-up (Day 14 ± 1) in the ITT and CE populations. Success was defined as "cure + improved," where patients had complete or near resolution of signs and symptoms, with no further antibacterial needed. The success rates in the ITT and CE populations are shown in Table 6.
- Six delafloxacin patients had baseline S. aureus bacteremia with ABSSSI. Five of these 6 patients (83.3%) were clinical responders at 48 to 72 hours and 5/6 (83.3%) were considered clinical success for ABSSSI at Day 14 ± 1. Two delafloxacin patients had baseline Gram-negative bacteremia (K. pneumoniae and P. aeruginosa), and both were clinical responders and successes.
- The investigator assessments of clinical success rates were also similar between treatment groups at Late Follow-up (LFU, day 21-28).
- Objective clinical response and investigator-assessed success by baseline pathogens from the primary infection site or blood cultures for the microbiological ITT (MITT) patient population pooled across Trial 1 and Trial 2 are presented in Table 7.
How Supplied
Delafloxacin for Injection
- Delafloxacin is supplied as a sterile, lyophilized powder in single-dose clear glass vials of 300 mg delafloxacin (equivalent to 433 mg delafloxacin meglumine). The lyophilized powder is a light yellow to tan cake, which may exhibit cracking and shrinkage and slight variation in texture and color.
- They are supplied as follows: 300-mg single-dose vials (NDC 70842-102-01), packaged in cartons of 10 vials (NDC 70842-102-03).
Delafloxacin Tablets
- Delafloxacin Tablets contain 450 mg delafloxacin (equivalent to 649 mg delafloxacin meglumine); each modified capsule-shaped tablet in beige to mottled beige color is debossed with RX3341 on one side. They are supplied as follows:
- Bottles of 20 tablets with child-resistant closure (NDC 70842-101-01)
- Unit dose blister packs which contain 20 tablets (2 blister cards of 10 tablets each) (20 tablet blister pack: NDC 70842-101-02, 10 tablet blister card: NDC 70842-101-03)
Storage
- Delafloxacin Tablets and delafloxacin for Injection should be stored at 20°C to 25°C (68°F to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F).
- The reconstituted powder may be stored for up to 24 hours under refrigerated or controlled room temperature and then further diluted for intravenous infusion. The reconstituted solution in the infusion bag may be stored under refrigerated or controlled room temperature conditions for up to 24 hours. Do not freeze.
Images
Drug Images
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Package and Label Display Panel
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Patient Counseling Information
- Advise the patient to read the FDA-approved patient labeling
Serious Adverse Reactions
- Advise patients to stop taking delafloxacin if they experience an adverse reaction and to call their healthcare provider for advice on completing the full course of treatment with another antibacterial drug.
- Inform patients of the following serious adverse reactions that have been associated with delafloxacin or other fluoroquinolone use:
- Disabling and Potentially Irreversible Serious Adverse Reactions that may occur together: Inform patients that disabling and potentially irreversible serious adverse reactions, including tendinitis and tendon rupture, peripheral neuropathies, and central nervous system effects, have been associated with use of fluoroquinolones and may occur together in the same patient. Inform patients to stop taking delafloxacin immediately if they experience an adverse reaction and to call their healthcare provider.
- Tendinitis and Tendon Rupture: Instruct patients to contact their healthcare provider if they experience pain, swelling, or inflammation of a tendon, or weakness or inability to use one of their joints; rest and refrain from exercise; and discontinue delafloxacin treatment. Symptoms may be irreversible. The risk of severe tendon disorder with fluoroquinolones is higher in older patients usually over 60 years of age, in patients taking corticosteroid drugs, and in patients with kidney, heart or lung transplants.
- Peripheral Neuropathy: Inform patients that peripheral neuropathies have been associated with delafloxacin use, symptoms may occur soon after initiation of therapy and may be irreversible. If symptoms of peripheral neuropathy including pain, burning, tingling, numbness and/or weakness develop, immediately discontinue delafloxacin and tell them to contact their physician.
- Central Nervous System Effects: (for example, convulsions, dizziness, lightheadedness, increased intracranial pressure): Inform patients that convulsions have been reported in patients receiving fluoroquinolones, Instruct patients to notify their physician before taking this drug if they have a history of convulsions. Inform patients that they should know how they react to delafloxacin before they operate an automobile or machinery or engage in other activities requiring mental alertness and coordination. Instruct patients to notify their physician if persistent headache with or without blurred vision occurs.
- Exacerbation of Myasthenia Gravis: Instruct patients to inform their physician of any history of myasthenia gravis. Instruct patients to notify their physician if they experience any symptoms of muscle weakness, including respiratory difficulties.
- Hypersensitivity Reactions: Inform patients that delafloxacin can cause hypersensitivity reactions, even following a single dose, and to discontinue delafloxacin at the first sign of a skin rash, hives or other skin reactions, a rapid heartbeat, difficulty in swallowing or breathing, any swelling suggesting angioedema (for example, swelling of the lips, tongue, face, tightness of the throat, hoarseness), or other symptoms of an allergic reaction.
- Diarrhea: Diarrhea is a common problem caused by antibiotics which usually ends when the antibiotic is discontinued. Sometimes after starting treatment with antibiotics, patients can develop watery and bloody stools (with or without stomach cramps and fever) even as late as two or more months after having taken the last dose of the antibiotic. If this occurs, instruct patients to contact their physician as soon as possible.
- Antibacterial Resistance: Inform patients that antibacterial drugs including delafloxacin Tablets and Injection should only be used to treat bacterial infections. They do not treat viral infections (for example, the common cold). When delafloxacin Tablets and delafloxacin Injection are prescribed to treat a bacterial infection, patients should be told that although it is common to feel better early in the course of therapy, the medication should be taken exactly as directed. Skipping doses or not completing the full course of therapy may (1) decrease the effectiveness of the immediate treatment and (2) increase the likelihood that bacteria will develop resistance and will not be treatable by delafloxacin Tablets and delafloxacin Injection or other antibacterial drugs in the future.
Administration with Food and Concomitant Medications
- Inform patients that delafloxacin Tablets may be taken with or without food and without any dietary restrictions
- Inform patients that delafloxacin Tablets should be taken at least 2 hours before or 6 hours after antacids containing magnesium, or aluminum, with sucralfate, with metal cations such as iron, or with multivitamin preparations containing zinc or iron, or with didanosine buffered tablets for oral suspension or the pediatric powder for oral solution.
Precautions with Alcohol
Alcohol-Delafloxacin interaction has not been established. Talk to your doctor regarding the effects of taking alcohol with this medication.
Brand Names
- Baxdela
Look-Alike Drug Names
There is limited information regarding Delafloxacin Look-Alike Drug Names in the drug label.
Drug Shortage Status
Drug Shortage
Price
References
The contents of this FDA label are provided by the National Library of Medicine.