systemic antifungal agents spectrum indications precautions
DESCRIPTION
SYSTEMIC ANTIFUNGAL AGENTS SPECTRUM INDICATIONS PRECAUTIONS. DR ALPAY AZAP Ankara University Medical School Infectious Diseases and Clinical Microbiology Dept. Anidulafungin. Caspofungin. Ravucon. XMP. Sordarins. Micafun. Voricon. Posacon. # of Antifungals. L-AmB ABCD - PowerPoint PPT PresentationTRANSCRIPT
SYSTEMIC ANTIFUNGAL AGENTS
SPECTRUM
INDICATIONS
PRECAUTIONS
DR ALPAY AZAP
Ankara University Medical School
Infectious Diseases and Clinical Microbiology Dept
0
2
4
6
8
10
12
14
1950 1960 1970 1980 1990 2000
Nys
tatin
Am
phot
eric
in B
(195
8)
Gris
eofu
lvin
5-FCMiconazole
KetoconazoleFluconazole
Itraconazole
L-AmB ABCD ABLC
Terbinafine
VoriconPosacon
XM
P
Sordarins
Cas
po
fun
gin
MicafunRavucon
Ani
du
lafu
ngi
n
# of Antifungals
AZOLEs
POLYENsECHINOCANDINs
AZOLES
ITRACONAZOLE
KETOCONAZOLE
FLUCONAZOLE
VORICONAZOLE
POSACONAZOLE
RAVUCONAZOLE
POLYENS
NYSTATIN
AMPHOTERICIN B
Deoxycholate
Lipid formulations
ECHINOCANDINS
CASPOFUNGIN
ANIDULAFUNGIN
MICAFUNGIN
ECHINOCANDINS
Candida spp.
Aspergillus spp.
Cryptococcus neoformans
Trichosporon spp.
Fusarium spp.
Zygomycetes
Scedosporium spp.
Pseudoallescheria spp.
SUSCEPTIBLE
INHERENTLY RESISTANT
CASPOFUNGIN
Indications: Invasive candida infections
Esophageal candidiasis
Empirical antifungal tx of FEN
IPA resistant or intolerant to OLAT
Dosing regimen: IV, 70 mg loading dose, 50 mg/day maintenance
Age; 3 months-17 years: 50 mg/m2/day
Dose alteration: No dose alteration in renal dysfunction
In moderate hepatic failure 35 mg/day maintenance
CASPOFUNGIN
Side effects: Fever (>%10), Raised LFTs (%1-10) Hypokalemia (%1-10) Nausea/vomiting (%1-10) Histamine mediated symptoms ?
Drug interactions: No contraindicated concomitant drugs.
Cyclosporine may increase caspo levels and increase LFTs
Rifampicin caspo dose should be 70 mg/kg/day
70 mg/kg/day may be requiredPhenytoin, Carbamazepine, Dexamethasone,Efavirenz, Nevirapine
ANIDULAFUNGIN
Indications: Invasive candidiasis (Non-neutropenic patients)
Esophageal candidiasis
The single candin compared with fluconazole in candidemia
Reboli C et al. New Engl J Med 2007;356:2472-82
Dosing regimen:
Invasive candidiasis: 200 mg/d loading, 100 mg/d maintenance
Esophageal candidiasis: 100 mg/d loading, 50 mg/d maintenance
Not approved for use in children.
Dose alteration: No dose alteration needed in renal/hepatic failure
Side effects: Gastrointestinal (%3-26)
Hypokalaemia (%1-10)
Fever, rash (%1-10)
Raised LFTs (%1-10)
Drug interactions: No contraindicated concomitant drugs.
No need for dose alteration of co-administered drugs
Plasma level monitoring is not recommended
ANIDULAFUNGIN
MICAFUNGIN
Indication: age ≥16 y: Invasive candidiasis Esophageal candidiasis Prophylaxis in Allo HSCT/prolonged neutropenia IPA treatment in non-responsive/intolerant pts.
age<16 y: Treatment of invasive candidiasisProphylaxis in Allo HSCT/prolonged neutropenia
Dosing regimen : IV, therapeutic dose in candidiasis: 100 mg/d prophylaxis: 50 mg/d
Dose alteration: No dose alteration needed in renal/hepatic failure
Side effects: Nausea, vomiting (%1-10)
Hypokalaemia (%1-10)
Fever, rash (%1-10)
Raised LFTs (%1-10)
Anaphylactoid reactions (<%0.1)
Intravascular haemolysis (rare)
MICAFUNGIN
Drug interactions: No contraindicated concomitant drugs.
Plasma level monitoring is not recommended
Increase sirolimus, nifedipine and ıtraconazole levels
AZOLES
Triazoles: Fluconazole
Itraconazole
Voriconazole
Posaconazole
Ravuconazole
IsavuconazoleDifferent antifungal activity / indications for use
Important drug interactions!
Each has different formulations!
ITRACONAZOLE
Indications:
Alternative option in treatment of IPA
Alternative option in treatment of candidiasis (neutropenic host)
Alternative option in treatment of oral/esophageal candidiasis
First line treatment of ABPA and allergic aspergillus sinusitis
First line treatment of chronic cavitary pulmonary aspergillosis
Prophylaxis in neutropenic/allogeneic HSCT patients
Dosing regimen: oral capsule, oral solution, IV solution
Mucocutaneous candidiasis: 200mg/d oral solution
Treatment or prophylaxis in Aspergillosis:
2x 200mg for first 2 days, 200mg/d maintenance
Plasma level should be monitored weekly (target: >500ng/ml)
Side effects: Nausea, vomiting (%10-28)
Hypokalaemia (%1-10)
Fever, rash (%1-10)
Raised LFTs (%1-10)
ITRACONAZOLE
Drug interactions: Use with;
Quinidine, dofetilide, pimozide, nidazolam, triazolam,
cisapride, lovastatine, simvastatine is CONTRAINDICATED
Raised Tacrolimus, sirolimus, cyclosporine levels!
Macrolide antibiotics, indinavir, ritonavir increase ITRA levels
VORICONAZOLE
Indications:
First line treatment of IPA
Treatment of candidiasis (fluconazole resistant strains)
Tx of Scedosporium apiospermum and Fusarium spp
Dosing regimen: IV, oral tablets, oral suspension
IV: 2 x 6 mg/kg first day, 2 x 4 mg/kg maintenance
Oral: 2 x 400 mg first day, 2 x 200 mg maintenance
Children: IV: 2 x 7mg/kg, oral: 2 x 200 mg
Dose alteration:
Renal failure: No need for oral formulations
IV formulation should not be given to pts
with a creatinine clearence <50 ml/min
Hepatic failure: Mild-moderate impairment one half maintenance dose
Use not recommended in severe impairment
VORICONAZOLE
Side effects: Transient visual disturbance: Photopsy (%20-30)
Rash, photosensitivity (%7)
Raised LFTs (%1-10) (should be monitored every 2 weeks)
Headache, vomiting, diarrhoea, abdominal pain (%1-10)
Hallucination (%5)
Drug interactions: Use with;
Carbamazepine, phenobarbital, sirolimus, rifampicin, ritonavir,
terfenadine, astemizole, cisapride, pimozide, quinidine, ergot alkaloids
is CONTRAINDICATED
VORICONAZOLE
Plasma level monitoring:
In selected pts (serious and/or unresponsive IFI )
Target levels: 2-6 mg/L
Cyclosporine dose should be reduced to one half and its serum
levels monitored
Omeprazole dose should be reduced to one half
Tacrolimus and methadone will require dose reduction
If co-administered with phenytoin vori maintenance dose: 2 x 5 mg/kg
POSACONAZOLE
Indications:
Prophylaxis in AML/MDS pts receiving chemotherapy
Prophylaxis in Allo HSCT pts with GVHD
Treatment of severe oropharyngeal candidiasis
Dosing regimen: Oral suspension
Prophylaxis: 3 x 200 mg with meals
Salvage therapy: 2 x 400 mg or 4 x 200 mg with meals
Children: should not be used in age <18 y (EU)
can be used in age >13 y (USA)
Salvage therapy for IPA (EU)
Alternative option in tx of IPA (IDSA)
POSACONAZOLE
Dose alterations:
Renal failure: No dose adjustment, bevare of “breakthrough” infections
Hepatic failure: Limited data available. Use with caution!
Side effects: Nausea, vomiting, diarrhoea (%1-10)
QT/QTc prolongation (%1-10)
Headache, rash (%1-10)
Hypokalaemia (%1-10)
Drug interactions: Use with;
Terfenadine, astemizole, cisapride, pimozide,
quinidine, ergot alkaloids is CONTRAINDICATED.
Cyclosporine dose should be reduced to 3/4, Tacrolimus to 1/3,
and drug levels should be monitored.
Rifabutin, midazolam, phenytoin, vincristine levels are increased
Cimetidine, rifabutin and phenytoin decrease POSA levels.
POSACONAZOLE
Plasma level monitoring:
Needed in selected pts (serious and/or unresponsive pts)
Target levels: >1.5 mg/L (after 7 days therapy)
Clin Infect Dis, 2008; 46:1401–8
271 pts, 407 neutropenic episodes, Placebo vs Liposomal Ampho B
2,5 ml of a 5 mg/ml solution 30 minutes inhaled, two consecutive days
Halolite AAD veya ProDose AAD; Romedic/Medic-Aid.
Particule size: 1.9 mikron
L-AmfoB: 6 /139 (4%) IPA
Placebo: 18 /132 (14%) IPA (p=.005)