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Anidulafungin

J02A - Antimycotics for systemic use ATC J02AX06 Small molecule approved 2006 Parenteral Natural product

JFDA label: Ecalta

Mechanism of Action

Inhibitor of 1,3-beta-glucan synthase — 1,3-beta-glucan synthase inhibitor

TargetActionGene / class
1,3-beta-glucan synthase efficacy INHIBITOR GSC1

Indications

Off-label

  • Candidiasis empiric therapy (non-neutropenic ICU patients)
  • Candidiasis, chronic disseminated (hepatosplenic)
  • Candidiasis, intravascular infections
  • Candidiasis, oropharyngeal (refractory disease)
  • Candidiasis, osteoarticular infections

Antimicrobial Spectrum

Expected / intrinsic spectrum (EUCAST breakpoints & labels) — not local resistance. Source: openfda-label.

Fungi

OrganismActivityMIC
Candida albicans Active
Candida dissemination Active
Candida glabrata Active
Candida guilliermondii Active
Candida krusei Active
Candida parapsilosis Active
Candida tropicalis Active

Class profile

antifungalClassEchinocandin
targetMoleculeBeta-1,3-glucan synthase (FKS1/FKS2 subunit)
isFungicidal1
spectrumCandidaS (fungicidal)
spectrumAspergillusS (fungistatic)
spectrumCryptococcusIntrinsically resistant
spectrumDermatophytesResistant
resistanceMechanismsFKS1 hot-spot mutations,FKS2 mutations
sourcePappas2016/Lass-Florl2011

Contraindications

Source: Lexicomp

  • Hypersensitivity to anidulafungin, other echinocandins, or any component of the formulation Absolute

Adverse Reactions

Very Common >10%Common 1–10%Uncommon 0.1–1% Rare 0.01–0.1%Very Rare <0.01%Not Known

Cardiac disorders (5)

Very Common hypertension · Hypotension · peripheral edema

Common chest pain · Deep vein thrombosis

Nervous system disorders (4)

Very Common Insomnia

Common Confusion · depression · headache

Hepatobiliary disorders (2)

Very Common Increased serum alkaline phosphatase

Common Increased serum transaminases

Renal and urinary disorders (2)

Very Common Urinary tract infection

Common Increased serum creatinine

Blood and lymphatic system disorders (3)

Common Anemia · leukocytosis · thrombocythemia

Metabolism and nutrition disorders (6)

Very Common Hypokalemia · hypomagnesemia

Common dehydration · hyperglycemia · hyperkalemia · Hypoglycemia

Gastrointestinal disorders (7)

Very Common diarrhea · Nausea · vomiting

Common abdominal pain · Constipation · dyspepsia · oral candidiasis

Skin and subcutaneous tissue disorders (1)

Common Decubitus ulcer

Musculoskeletal and connective tissue disorders (1)

Common Back pain

Infections and infestations (2)

Very Common Bacteremia

Common Sepsis

General disorders and administration site conditions (1)

Very Common Fever

Respiratory, thoracic and mediastinal disorders (5)

Very Common Dyspnea

Common cough · Pleural effusion · pneumonia · respiratory distress

Dosing

Source: Lexicomp

Candidemia, intra-abdominal or peritoneal candidiasis: IV: Initial dose: 200 mg on day 1; subsequent dosing: 100 mg daily; treatment should continue until 14 days after last positive culture. Note: IDSA Candidiasis guidelines recommend transition to fluconazole (eg, after 5 to 7 days in nonneutropenic patients) in clinically stable patients with fluconazole-susceptible isolates and negative repeat cultures (IDSA [Pappas 2016]) Candidiasis, chronic disseminated (hepatosplenic) (off-label use): IV: 200 mg on day 1; subsequent dosing: 100 mg daily for several weeks, followed by oral fluconazole therapy (IDSA [Pappas 2016]) Candidiasis, empiric therapy (suspected invasive candidiasis in nonneutropenic ICU patients) (off-label use): IV: 200 mg on day 1; subsequent dosing: 100 mg daily; treatment should continue for 14 days in patients with clinical improvement. Consider discontinuing after 4 to 5 days in patients with no clinical response (IDSA [Pappas 2016]) Candidiasis, intravascular infections (native or prosthetic valve endocarditis, infection of implantable cardiac devices, suppurative thrombophlebitis) (off-label use): IV: 200 mg daily. For native or prosthetic valve endocarditis, therapy should continue for at least 6 weeks after valve replacement surgery (longer durations in patients with abscesses or other complications); for patients with implantable cardiac devices, therapy should continue for 4 to 6 weeks after surgery (4 weeks for infections limited to generator pockets and at least 6 weeks for infections involving the wires); for suppurative thrombophlebitis, continue for at least 2 weeks after candidemia has cleared. Note: Step-down to fluconazole therapy is recommended in clinically stable patients with fluconazole-susceptible isolates and negative repeat cultures (IDSA [Pappas 2016]) Candidiasis, osteoarticular infections (osteomyelitis or septic arthritis) (alternative therapy) (off-label use): IV: 100 mg daily for at least 14 days, followed by fluconazole (IDSA [Pappas 2016]) Candidiasis, prophylaxis against invasive candidiasis (high-risk ICU patients in units with a high incidence of invasive candidiasis) (alternative therapy; off-label use): IV: Initial dose: 200 mg on day 1; subsequent doses: 100 mg daily (IDSA [Pappas 2016]) Candidiasis, esophageal: IV: Manufacturer’s labeling: Initial dose: 100 mg on day 1; subsequent dosing: 50 mg daily; treatment should continue for a minimum of 14 days and for at least 7 days after symptom resolution Alternate recommendations: 200 mg daily; may transition to oral fluconazole therapy once oral intake tolerable. In patients with fluconazole-refractory disease, continue anidulafungin for 14 to 21 days (IDSA [Pappas 2016]) Candidiasis, oropharyngeal (refractory disease) (alternative therapy) (off-label use): IV: Initial dose: 200 mg on day 1; subsequent dosing: 100 mg daily (IDSA [Pappas 2016])
Refer to adult dosing.
No dosage adjustment necessary, including dialysis patients.
No dosage adjustment necessary.

Warnings & Precautions

Source: Lexicomp

Anaphylactic reactions

Severe hypersensitivity reactions, including anaphylactic reactions and anaphylactic shock have been reported; immediate treatment for hypersensitivity reactions should be available. Discontinue treatment immediately if reactions occur.

Hepatic effects

Elevated liver function tests, hepatitis, and hepatic failure have been reported; monitor for progressive hepatic impairment if increased transaminase enzymes noted.

Infusion reactions

Infusion reactions (eg, bronchospasm, dyspnea, flushing, hypotension, pruritus, rash, urticaria) may occur; do not exceed recommended rate of infusion. Disease-related concerns:

Candidal infections

Safety and efficacy have not been established in other Candida infections (eg, endocarditis, osteomyelitis, meningitis).

Pregnancy & Lactation

Pregnancy

Adverse effects were observed in animal reproduction studies. Other agents are currently preferred for the treatment of Candida infections in pregnant women (IDSA [Pappas 2016]).

Lactation

It is not known if anidulafungin is present in breast milk. According to the manufacturer, the decision to continue or discontinue breastfeeding during therapy should take into account the risk of infant exposure, the benefits of breastfeeding to the infant, and benefits of treatment to the mother.

Monitoring

EfficacyFungal culture and species identification; minimum inhibitory concentration (MIC) where available; clinical response (temperature, imaging for invasive fungal disease)
ToxicityLFTs (hepatotoxicity — azoles in particular); renal function; ECG for QT prolongation (azoles); drug levels if available (itraconazole, voriconazole)
Clinical pearlVoriconazole levels are highly variable due to CYP2C19 polymorphism — TDM recommended (target trough 2–5 mg/L). Check for drug interactions with CYP3A4 substrates.
CounselingReport visual disturbances (voriconazole), jaundice, or rash. Take azoles with food or as directed to optimise absorption.

Chemistry & Properties

2D structure
FormulaC58H73N7O17
Molecular weight1140.25 g/mol
IUPAC nameN-[(3S,6S,9S,11R,15S,18S,20R,21R,24S,25S,26S)-6-[(1S,2S)-1,2-dihydroxy-2-(4-hydroxyphenyl)ethyl]-11,20,21,25-tetrahydroxy-3,15-bis[(1R)-1-hydroxyethyl]-26-methyl-2,5,8,14,17,23-hexaoxo-1,4,7,13,16,22-hexazatricyclo[22.3.0.09,13]heptacosan-18-yl]-4-[4-(4-pentoxyphenyl)phenyl]benzamide
CAS166663-25-8
PubChem CID166548
InChIKeyJHVAMHSQVVQIOT-MFAJLEFUSA-N
SMILESCCCCCOc1ccc(-c2ccc(-c3ccc(C(=O)N[C@H]4C[C@@H](O)[C@@H](O)NC(=O)[C@@H]5[C@@H](O)[C@@H](C)CN5C(=O)[C@H]([C@@H](C)O)NC(=O)[C@H]([C@H](O)[C@@H](O)c5ccc(O)cc5)NC(=O)[C@@H]5C[C@@H](O)CN5C(=O)[C@H]([C@@H](C)O)NC4=O)cc3)cc2)cc1

Biology & Pharmacokinetics

Pharmacokinetics predicted

Bioavailability70.0%
Half-life3.388 h
Volume of distribution0.382 L/kg
Protein binding95.2%
BBB penetrantNo

Enzyme interactions

EnzymeRoleDetail
CYP2B6Inhibitor
CYP2C8Inhibitor IC₅₀ 12.000000000000007 µM

Transporters

BCRP (Inhibitor)BSEP (Inhibitor)MRP1 (Inhibitor)OATP1B1 (Inhibitor)OATP1B3 (Inhibitor)P-gp (Inhibitor)P-gp (Substrate)

Drug–drug interactions (1, DDInter)

Interacting drugSeverityManagement
Cyclosporine minor

Registered Products (4)

BrandForm / strengthPackAgentCitizen (JOD)
Ecalta Vial 100 mg 1 vial Khoury Drug Store
MUFINES 100 MG LYOPHILIZED POWDER FOR SOLUTION FOR IV INFUSION Infusion Anidulafungin 100 mg 1 vial JAWEDA INT. DRUD STORE
Nixara Vial 100 mg 30 ml Pharma International Company/ Jordan
Safdola 100mg/vial powder for concentrate for solution for infusion Infusion 100 mg one vial MS Pharma Jordan