Source:http://www4.wiwiss.fu-berlin.de/dailymed/resource/drugs/2604
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Sporanox (Capsule)
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SPORANOX (itraconazole) Capsules
should be taken with a full meal to ensure maximal absorption. SPORANOX Capsules is a different preparation
than SPORANOX Oral Solution and should not be used interchangeably.<br/>Treatment of Blastomycosis and Histoplasmosis:: The recommended dose is 200 mg once daily (2 capsules).
If there is no obvious improvement, or there is evidence of progressive fungal
disease, the dose should be increased in 100-mg increments to a maximum of
400 mg daily. Doses above 200 mg/day should be given in two divided doses.<br/>Treatment of Aspergillosis:: A daily dose of 200 to 400 mg is recommended.<br/>Treatment in Life-Threatening Situations:: In life-threatening situations, a loading dose should
be used whether given as oral capsules or intravenously. Treatment should be continued for a minimum of
three months and until clinical parameters and laboratory tests indicate that
the active fungal infection has subsided. An inadequate period of treatment
may lead to recurrence of active infection. SPORANOX Capsules
and SPORANOX Oral Solution should not be used interchangeably.
Only the oral solution has been demonstrated effective for oral and/or esophageal
candidiasis.<br/>Treatment of Onychomycosis:: Toenails with or without fingernail involvement:
The recommended dose is 200 mg (2 capsules) once daily for 12 consecutive
weeks.<br/>Treatment of Onychomycosis:: Fingernails only: The recommended dosing regimen
is 2 treatment pulses, each consisting of 200 mg (2 capsules) b.i.d. (400
mg/day) for 1 week. The pulses are separated by a 3-week period without
SPORANOX.
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dailymed-instance:descripti... |
SPORANOX is the brand name for itraconazole,
a synthetic triazole antifungal agent. Itraconazole is a 1:1:1:1 racemic mixture
of four diastereomers (two enantiomeric pairs), each possessing three chiral
centers. It may be represented by the following structural formula and nomenclature: (��)-1-[(R*)-sec-butyl]-4-[p
-[4-[p-[[(2R
*,4S*)-2-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]-1-piperazinyl]phenyl]-��-1,2,4-triazolin-5-one
mixture with (��)-1-[(R*)-sec-butyl]-4-[p
-[4-[p-[[(2S
*,4R*)-2-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]-1-piperazinyl]phenyl]-��-1,2,4-triazolin-5-oneor(��)-1-[(RS)-sec-butyl]-4-[p
-[4-[p-[[(2R
,4S)-2-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]-1-piperazinyl]phenyl]-��-1,2,4-triazolin-5-one Itraconazole has a molecular formula of CHClNOand
a molecular weight of 705.64. It is a white to slightly yellowish powder.
It is insoluble in water, very slightly soluble in alcohols, and freely soluble
in dichloromethane. It has a pKa of 3.70 (based on extrapolation of values
obtained from methanolic solutions) and a log (n-octanol/water) partition
coefficient of 5.66 at pH 8.1. SPORANOX Capsules
contain 100 mg of itraconazole coated on sugar spheres. Inactive ingredients
are gelatin, hypromellose, polyethylene glycol (PEG) 20,000, starch,
sucrose, titanium dioxide, FD&C Blue No. 1, FD&C Blue No. 2, D&C
Red No. 22 and D&C Red No. 28.
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dailymed-instance:clinicalP... |
Pharmacokinetics and Metabolism:: NOTE: The plasma concentrations reported below were
measured by high-performance liquid chromatography (HPLC) specific for itraconazole.
When itraconazole in plasma is measured by a bioassay, values reported are
approximately 3.3 times higher than those obtained by HPLC due to the presence
of the bioactive metabolite, hydroxyitraconazole. The pharmacokinetics of itraconazole after intravenous administration
and its absolute oral bioavailability from an oral solution were studied in
a randomized crossover study in 6 healthy male volunteers. The observed absolute
oral bioavailability of itraconazole was 55%. The
oral bioavailability of itraconazole is maximal when SPORANOX (itraconazole)
Capsules are taken with a full meal. The pharmacokinetics of itraconazole
were studied in 6 healthy male volunteers who received, in a crossover design,
single 100-mg doses of itraconazole as a polyethylene glycol capsule, with
or without a full meal. The same 6 volunteers also received 50 mg or
200 mg with a full meal in a crossover design. In this study, only itraconazole
plasma concentrations were measured. The respective pharmacokinetic parameters
for itraconazoleare presented in the table below: Doubling the SPORANOX dose results
in approximately a three-fold increase in the itraconazole plasma concentrations. Values given in the table below represent data from a crossover
pharmacokinetics study in which 27 healthy male volunteers each took a single
200-mg dose of SPORANOX Capsules with or without a full meal: Absorption of itraconazole under fasted conditions
in individuals with relative or absolute achlorhydria, such as patients with
AIDS or volunteers taking gastric acid secretion suppressors (e.g., Hreceptor
antagonists), was increased when SPORANOX Capsules were administered
with a cola beverage. Eighteen men with AIDS received single 200-mg doses
of SPORANOX Capsules under fasted conditions with 8 ounces
of water or 8 ounces of a cola beverage in a crossover design. The absorption
of itraconazole wasincreased when SPORANOX Capsules were
coadministered with a cola beverage, with AUCand Cincreasing
75%��121% and 95%��128%, respectively. Thirty healthy men received single 200-mg doses of SPORANOX Capsules
under fasted conditions either 1) with water; 2) with water, after ranitidine
150 mg b.i.d. for 3 days; or 3) with cola, after ranitidine 150 mg b.i.d.
for 3 days. When SPORANOX Capsules were administered after
ranitidine pretreatment, itraconazole was absorbed to a lesser extent than
when SPORANOX Capsules were administered alone, with decreases
in AUCand Cof 39%��37% and 42%��39%, respectively. When SPORANOX Capsules were administered
with cola after ranitidine pretreatment, itraconazole absorption was comparable
to that observed when SPORANOX Capsules were administered
alone. Steady-state concentrations were reached within 15 days
following oral doses of 50 mg to 400 mg daily. Values given in the table
below are data at steady-state from a pharmacokinetics study in which 27 healthy
male volunteers took 200-mg SPORANOX Capsules b.i.d.(with
a full meal) for 15 days: The plasma protein binding of itraconazole is
99.8% and that of hydroxyitraconazole is 99.5%. Following intravenous administration,
the volume of distribution of itraconazole averaged 796��185
liters. Itraconazole is metabolized predominately
by the cytochrome P450 3A4 isoenzyme system (CYP3A4), resulting in the formation
of several metabolites, including hydroxyitraconazole, the major metabolite.
Results of a pharmacokinetics study suggest that itraconazole may undergo
saturable metabolism with multiple dosing. Fecal excretion of the parent drug
varies between 3-18% of the dose. Renal excretion of the parent drug is less
than 0.03% of the dose. About 40% of the dose is excreted as inactive metabolites
in the urine. No single excreted metabolite represents more than 5% of a dose.
Itraconazole total plasma clearance averaged 381��95 mL/minute following
intravenous administration.<br/>Special Populations::<br/>Renal Insufficiency:: A pharmacokinetic study using a single 200-mg
dose of itraconazole (four 50-mg capsules) was conducted in three groups
of patients with renal impairment (uremia: n=7; hemodialysis: n=7; and continuous
ambulatory peritoneal dialysis: n=5). In uremic subjects with a mean creatinine
clearance of 13 mL/min.��1.73 m, the bioavailability was
slightly reduced compared with normal population parameters. This study did
not demonstrate any significant effect of hemodialysis or continuous ambulatory
peritoneal dialysis on the pharmacokinetics of itraconazole (T,
C, and AUC). Plasma concentration-versus-time
profiles showed wide intersubject variation in all three groups.<br/>Hepatic Insufficiency:: A pharmacokinetic study using a single 100-mg
dose of itraconazole (one 100-mg capsule) was conducted in 6 healthy
and 12 cirrhotic subjects. No statistically significant differences in AUC
were seen between these two groups. A statistically significant reduction
in mean C(47%) and a twofold increase in the elimination half-life
(37��17 hours) of itraconazole were noted in cirrhotic subjects compared
with healthy subjects. Patients with impaired hepatic function should be carefully
monitored when taking itraconazole. The prolonged elimination half-life of
itraconazole observed in cirrhotic patients should be considered when deciding
to initiate therapy with other medications metabolized by CYP3A4.<br/>Decreased Cardiac Contractility:: When itraconazole was administered intravenously
to anesthetized dogs, a dose-related negative inotropic effect was documented.
In a healthy volunteer study of SPORANOX Injection (intravenous
infusion), transient, asymptomatic decreases in left ventricular ejection
fraction were observed using gated SPECT imaging; these resolved before the
next infusion, 12 hours later. If signs or symptoms of congestive heart failure
appear during administration of SPORANOX Capsules, SPORANOX should
be discontinued. (See CONTRAINDICATIONS, WARNINGS, PRECAUTIONS: Drug Interactions and ADVERSE REACTIONS: Post-marketing Experience for more
information.)
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Congestive Heart Failure:: SPORANOX (itraconazole) Capsules
should not be administered for the treatment of onychomycosis in patients
with evidence of ventricular dysfunction such as congestive heart failure
(CHF) or a history of CHF. (See CLINICAL PHARMACOLOGY:
Special Populations, WARNINGS, PRECAUTIONS: Drug Interactions-Calcium Channel Blockers,
and ADVERSE REACTIONS: Post-marketing Experience.)<br/>Drug Interactions:: Concomitant administration of SPORANOX (itraconazole)
Capsules, Injection, or Oral Solution and certain drugs metabolized by the
cytochrome P450 3A4 isoenzyme system (CYP3A4) may result in increased plasma
concentrations of those drugs, leading to potentially serious and/or life-threatening
adverse events. Cisapride, oral midazolam, nisoldipine, pimozide, quinidine,
dofetilide, triazolam and levacetylmethadol (levomethadyl) are contraindicated
with SPORANOX. HMG CoA-reductase inhibitors metabolized by
CYP3A4, such as lovastatin and simvastatin, are also contraindicated with
SPORANOX. Ergot alkaloids metabolized by CYP3A4 such as dihydroergotamine,
ergometrine (ergonovine), ergotamine and methylergometrine (methylergonovine)
are contraindicated with SPORANOX. (See BOX
WARNING, and PRECAUTIONS: Drug Interactions.) SPORANOX should not be administered for
the treatment of onychomycosis to pregnant patients or to women contemplating
pregnancy. SPORANOX is contraindicated
for patients who have shown hypersensitivity to itraconazole or its excipients.
There is no information regarding cross-hypersensitivity between itraconazole
and other azole antifungal agents. Caution should be used when prescribing
SPORANOX to patients with hypersensitivity to other azoles.
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dailymed-instance:supply |
SPORANOX (itraconazole) Capsules
are available containing 100 mg of itraconazole, with a blue opaque cap and
pink transparent body, imprinted with���JANSSEN���and���SPORANOX
100.���The capsules are supplied in unit-dose blister packs of 3��10 capsules (NDC 50458-290-01), bottles of 30 capsules (NDC 50458-290-04)
and in the PulsePak containing 7 blister packs��4 capsules
each (NDC 50458-290-28). Store at controlled
room temperature 15��-25��C (59��-77��F). Protect from light
and moisture. Keep out of reach of children. ��Janssen 2001 U.S. Patent
Nos. 4,267,179; 5,633,015 Issued October
2007 Distributed by: JANSSEN
PHARMACEUTICA PRODUCTS, L.P. Titusville, New
Jersey 08560, USA Capsule contents manufactured
by: JANSSEN PHARMACEUTICA N.V. Beerse, Belgium JANSSEN PHARMACEUTICA PRODUCTS, L.P.
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Congestive Heart Failure: SPORANOX (itraconazole)
Capsules should not be administered for the treatment of onychomycosis in
patients with evidence of ventricular dysfunction such as congestive heart
failure (CHF) or a history of CHF. If signs or symptoms of congestive
heart failure occur during administration of SPORANOX Capsules,
discontinue administration. When itraconazole was administered intravenously
to dogs and healthy human volunteers, negative inotropic effects were seen.
(See CLINICAL PHARMACOLOGY: Special Populations, CONTRAINDICATIONS, WARNINGS, PRECAUTIONS: Drug Interactions and ADVERSE
REACTIONS: Post-marketing Experience for more information.) Drug
Interactions: Coadministration of cisapride, pimozide, quinidine, dofetilide,
or levacetylmethadol (levomethadyl) with SPORANOX (itraconazole)
Capsules, Injection or Oral Solution is contraindicated SPORANOX,
a potent cytochrome P450 3A4 isoenzyme system (CYP3A4) inhibitor, may
increase plasma concentrations of drugs metabolized by this pathway. Serious
cardiovascular events, including QT prolongation, torsades de pointes, ventricular
tachycardia, cardiac arrest, and/or sudden death have occurred in patients
using cisapride, pimozide, levacetylmethadol (levomethadyl), or quinidine,
concomitantly with SPORANOX and/or other CYP3A4 inhibitors.
See CONTRAINDICATIONS, WARNINGS,
and PRECAUTIONS: Drug Interactions for more
information.
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dailymed-ingredient:Dye_D&C_Red_#22,
dailymed-ingredient:Dye_D&C_Red_#28,
dailymed-ingredient:Dye_FD&C_Blue_#1,
dailymed-ingredient:Dye_FD&C_Blue_#2,
dailymed-ingredient:Gelatin,
dailymed-ingredient:Hypromellose,
dailymed-ingredient:Polyethylene_glycol_(PEG)_20,000,
dailymed-ingredient:Starch,
dailymed-ingredient:Sucrose,
dailymed-ingredient:Sugar_Spheres-Sucrose_and_Starch,
dailymed-ingredient:Titanium_Dioxide
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General:: Rare cases of serious hepatotoxicity have been observed
with Sporanox treatment, including some cases within the
first week. In patients with elevated or abnormal liver enzymes or active
liver disease, or who have experienced liver toxicity with other drugs, treatment
with Sporanox is strongly discouraged unless there is a serious
or life threatening situation where the expected benefit exceeds the risk.
Liver function monitoring should be done in patients with pre-existing hepatic
function abnormalities or those who have experienced liver toxicity with other
medications and should be considered in all patients receiving Sporanox.
Treatment should be stopped immediately and liver function testing should
be conducted in patients who develop signs and symptoms suggestive of liver
dysfunction. If neuropathy occurs that may
be attributable to Sporanox capsules, the treatment should
be discontinued. SPORANOX (itraconazole)
Capsules should be administered after a full meal. (See CLINICAL
PHARMACOLOGY: Pharmacokinetics and Metabolism.) Under fasted conditions, itraconazole absorption was decreased
in the presence of decreased gastric acidity. The absorption of itraconazole
may be decreased with the concomitant administration of antacids or gastric
acid secretion suppressors. Studies conducted under fasted conditions demonstrated
that administration with 8 ounces of a cola beverage resulted in increased
absorption of itraconazole in AIDS patients with relative or absolute achlorhydria.
This increase relative to the effects of a full meal is unknown. Transient
or permanent hearing loss has been reported in patients receiving treatment
with itraconazole. Several of these reports included concurrent administration
of quinidine which is contraindicated (see BOX WARNINGS:
Drug Interactions; CONTRAINDICATIONS: Drug
Interactions and PRECAUTIONS: Drug Interactions).
The hearing loss usually resolves when treatment is stopped, but can persist
in some patients. Patients should be informed of this potential side effect
and advised to discontinue therapy and inform their physicians if any hearing
loss symptoms occur.<br/>Information for Patients::<br/>Drug Interactions:: Itraconazole and its major metabolite, hydroxyitraconazole,
are inhibitors of CYP3A4. Therefore, the following drug interactions may occur (See Table 1 below and the
following drug class subheadings that follow):<br/>Antiarrhythmics:: The class IA antiarrhythmic quinidine and class
III antiarrhythmic dofetilide are known to prolong the QT interval. Coadministration
of quinidine or dofetilide with SPORANOX may increase plasma
concentrations of quinidine or dofetilide which could result in serious cardiovascular
events. Therefore, concomitant administration of SPORANOX and
quinidine or dofetilide is contraindicated. (See BOX
WARNING, CONTRAINDICATIONS, and WARNINGS.) The class
IA antiarrhythmic disopyramide has the potential to increase the QT interval
at high plasma concentrations. Caution is advised when SPORANOX and
disopyramide are administered concomitantly. Concomitant
administration of digoxin and SPORANOX has led to increased
plasma concentrations of digoxin.<br/>Anticonvulsants:: Reduced plasma concentrations of itraconazole
were reported when SPORANOX was administered concomitantly
with phenytoin. Carbamazepine, phenobarbital, and phenytoin are all inducers
of CYP3A4. Although interactions with carbamazepine and phenobarbital have
not been studied, concomitant administration of SPORANOX and
these drugs would be expected to result in decreased plasma concentrations
of itraconazole. In addition, in vivo studies have demonstrated an increase
in plasma carbamazepine concentrations in subjects concomitantly receiving
ketoconazole. Although there are no data regarding the effect of itraconazole
on carbamazepine metabolism, because of the similarities between ketoconazole
and itraconazole, concomitant administration of SPORANOX and
carbamazepine may inhibit the metabolism of carbamazepine.<br/>Antimycobacterials:: Drug interaction studies have demonstrated that
plasma concentrations of azole antifungal agents and their metabolites, including
itraconazole and hydroxyitraconazole, were significantly decreased when these
agents were given concomitantly with rifabutin or rifampin. In vivo data suggest
that rifabutin is metabolized in part by CYP3A4. SPORANOX may
inhibit the metabolism of rifabutin. Although no formal study data are available
for isoniazid, similar effects should be anticipated. Therefore, the efficacy
of SPORANOX could be substantially reduced if given concomitantly
with one of these agents. Coadministration is not recommended.<br/>Antineoplastics:: SPORANOX may inhibit the metabolism
of busulfan, docetaxel, and vinca alkaloids.<br/>Antipsychotics:: Pimozide is known to prolong the QT interval and
is partially metabolized by CYP3A4. Coadministration of pimozide with SPORANOX could
result in serious cardiovascular events. Therefore, concomitant administration
of SPORANOX and pimozide is contraindicated. (See BOX WARNING, CONTRAINDICATIONS,
and WARNINGS.)<br/>Benzodiazepines:: Concomitant administration of SPORANOX and
alprazolam, diazepam, oral midazolam, or triazolam could lead to increased
plasma concentrations of these benzodiazepines. Increased plasma concentrations
could potentiate and prolong hypnotic and sedative effects. Concomitant administration
of SPORANOX and oral midazolam or triazolam is contraindicated.
If midazolam is administered parenterally, special precaution and patient
monitoring is required since the sedative effect may be prolonged.<br/>Calcium Channel Blockers:: Edema has been reported in patients concomitantly
receiving SPORANOX and dihydropyridine calcium channel blockers.
Appropriate dosage adjustment may be necessary. Calcium
channel blockers can have a negative inotropic effect which may be additive
to those of itraconazole; itraconazole can inhibit the metabolism of calcium
channel blockers such as dihydropyridines (e.g., nifedipine and felodipine)
and verapamil. Therefore, caution should be used when co-administering itraconazole
and calcium channel blockers due to an increased risk of CHF. Concomitant
administration of SPORANOX and nisoldipine is contraindicated.
(See CLINICAL PHARMACOLOGY: Special Populations, CONTRAINDICATIONS, WARNINGS,
and ADVERSE REACTIONS: Post-marketing Experience for
more information).<br/>Gastric Acid Suppressors/Neutralizers:: Reduced plasma concentrations of itraconazole
were reported when SPORANOX Capsules were administered concomitantly
with H-receptor antagonists. Studies have shown that absorption
of itraconazole is impaired when gastric acid production is decreased. Therefore,
SPORANOX should be administered with a cola beverage if the
patient has achlorhydria or is taking H-receptor antagonists or
other gastric acid suppressors. Antacids should be administered at least 1
hour before or 2 hours after administration of SPORANOX Capsules.
In a clinical study, when SPORANOX Capsules were administered
with omeprazole (a proton pump inhibitor), the bioavailability of itraconazole
was significantly reduced.<br/>Gastrointestinal Motility Agents:: Coadministration of SPORANOX with
cisapride can elevate plasma cisapride concentrations which could result in
serious cardiovascular events. Therefore, concomitant administration of SPORANOX with
cisapride is contraindicated.<br/>HMG CoA-Reductase Inhibitors:: Human pharmacokinetic data suggest that SPORANOX inhibits
the metabolism of atorvastatin, cerivastatin, lovastatin, and simvastatin,
which may increase the risk of skeletal muscle toxicity, including rhabdomyolysis.
Concomitant administration of SPORANOX with HMG CoA-reductase
inhibitors, such as lovastatin and simvastatin, is contraindicated.<br/>Immunosuppressants:: Concomitant administration of SPORANOX and
cyclosporine or tacrolimus has led to increased plasma concentrations of these
immunosuppressants. Concomitant administration of SPORANOX and
sirolimus could increase plasma concentrations of sirolimus.<br/>Macrolide Antibiotics:: Erythromycin and clarithromycin are known inhibitors
of CYP3A4 (See Table 1) and may increase plasma
concentrations of itraconazole. In a small pharmacokinetic study involving
HIV infected patients, clarithromycin was shown to increase plasma concentrations
of itraconazole. Similarly, following administration of 1 gram of erythromycin
ethyl succinate and 200 mg itraconazole as single doses, the mean Cand
AUC���of itraconazole increased by 44% (90% CI: 119-175%)
and 36% (90% CI: 108-171%), respectively.<br/>Non-nucleoside Reverse Transcriptase Inhibitors:: Nevirapine is an inducer of CYP3A4. In vivo studies
have shown that nevirapine induces the metabolism of ketoconazole, significantly
reducing the bioavailability of ketoconazole. Studies involving nevirapine
and itraconazole have not been conducted. However, because of the similarities
between ketoconazole and itraconazole, concomitant administration of SPORANOX and
nevirapine is not recommended. In a clinical
study, when 8 HIV-infected subjects were treated concomitantly with SPORANOX Capsules
100 mg twice daily and the nucleoside reverse transcriptase inhibitor zidovudine
8��0.4 mg/kg/day, the pharmacokinetics of zidovudine were not affected.
Other nucleoside reverse transcriptase inhibitors have not been studied.<br/>Oral Hypoglycemic Agents:: Severe hypoglycemia has been reported in patients
concomitantly receiving azole antifungal agents and oral hypoglycemic agents.
Blood glucose concentrations should be carefully monitored when SPORANOX and
oral hypoglycemic agents are coadministered.<br/>Polyenes:: Prior treatment with itraconazole, like other
azoles, may reduce or inhibit the activity of polyenes such as amphotericin
B. However, the clinical significance of this drug effect has not been clearly
defined.<br/>Protease Inhibitors:: Concomitant administration of SPORANOX and
protease inhibitors metabolized by CYP3A4, such as indinavir, ritonavir, and
saquinavir, may increase plasma concentrations of these protease inhibitors.
In addition, concomitant administration of SPORANOX and indinavir
and ritonavir (but not saquinavir) may increase plasma concentrations of itraconazole.
Caution is advised when SPORANOX and protease inhibitors
must be given concomitantly.<br/>Other::<br/>Carcinogenesis, Mutagenesis, and Impairment of Fertility:: Itraconazole showed no evidence of carcinogenicity
potential in mice treated orally for 23 months at dosage levels up to 80 mg/kg/day
(approximately 10x the maximum recommended human dose [MRHD]). Male rats treated
with 25 mg/kg/day (3.1x MRHD) had a slightly increased incidence of soft
tissue sarcoma. These sarcomas may have been a consequence of hypercholesterolemia,
which is a response of rats, but not dogs or humans, to chronic itraconazole
administration. Female rats treated with 50 mg/kg/day (6.25x MRHD) had an
increased incidence of squamous cell carcinoma of the lung (2/50) as compared
to the untreated group. Although the occurrence of squamous cell carcinoma
in the lung is extremely uncommon in untreated rats, the increase in this
study was not statistically significant. Itraconazole
produced no mutagenic effects when assayed in DNA repair test (unscheduled
DNA synthesis) in primary rat hepatocytes, in Ames tests with Salmonella
typhimurium (6 strains) and Escherichia
coli, in the mouse lymphoma gene mutation tests, in a sex-linked
recessive lethal mutation (Drosophila melanogaster
) test, in chromosome aberration tests in human lymphocytes, in
a cell transformation test with C3H/10T��C18 mouse embryo fibroblasts
cells, in a dominant lethal mutation test in male and female mice, and in
micronucleus tests in mice and rats. Itraconazole
did not affect the fertility of male or female rats treated orally with dosage
levels of up to 40 mg/kg/day (5x MRHD), even though parental toxicity was
present at this dosage level. More severe signs of parental toxicity, including
death, were present in the next higher dosage level, 160 mg/kg/day (20x MRHD).<br/>Pregnancy: Teratogenic effects. Pregnancy Category C:: Itraconazole was found to cause a dose-related increase
in maternal toxicity, embryotoxicity, and teratogenicity in rats at dosage
levels of approximately 40-160 mg/kg/day (5-20x MRHD), and in mice at
dosage levels of approximately 80 mg/kg/day (10x MRHD). In rats, the
teratogenicity consisted of major skeletal defects; in mice, it consisted
of encephaloceles and/or macroglossia. There
are no studies in pregnant women. SPORANOX should be used
for the treatment of systemic fungal infections in pregnancy only if the benefitoutweighs the potential risk. SPORANOX should
not be administered for the treatment of onychomycosis to pregnant patients
or to women contemplating pregnancy. SPORANOX should not
be administered to women of childbearing potential for the treatment of onychomycosis
unless they are using effective measures to prevent pregnancy and they begin
therapy on the second or third day following the onset of menses. Effective
contraception should be continued throughout SPORANOX therapy
and for 2 months following the end of treatment. During
post-marketing experience, cases of congenital abnormalities have been reported.<br/>Nursing Mothers:: Itraconazole is excreted in human milk; therefore,
the expected benefits of SPORANOX therapy for the mother
should be weighed against the potential risk from exposure of itraconazole
to the infant. The U.S. Public Health Service Centers for Disease Control
and Prevention advises HIV-infected women not to breast-feed to avoid potential
transmission of HIV to uninfected infants.<br/>Pediatric Use:: The efficacy and safety of SPORANOX have
not been established in pediatric patients. No pharmacokinetic data on SPORANOX Capsules
are available in children. A small number of patients ages 3 to 16 years have
been treated with 100 mg/day of itraconazole capsules for systemic fungal
infections, and no serious unexpected adverse events have been reported. SPORANOX Oral
Solution (5 mg/kg/day) has been administered to pediatric patients (N=26;
ages 6 months to 12 years) for 2 weeks and no serious unexpected adverse
events were reported. The long-term effects
of itraconazole on bone growth in children are unknown. In three toxicology
studies using rats, itraconazole induced bone defects at dosage levels as
low as 20 mg/kg/day (2.5x MRHD). The induced defects included reduced bone
plate activity, thinning of the zona compacta of the large bones, and increased
bone fragility. At a dosage level of 80 mg/kg/day (10x MRHD) over 1 year or
160 mg/kg/day (20x MRHD) for 6 months, itraconazole induced small tooth
pulp with hypocellular appearance in some rats. No such bone toxicity has
been reported in adult patients.<br/>HIV-Infected Patients:: Because hypochlorhydria has been reported in HIV-infected
individuals, the absorption of itraconazole in these patients may be decreased.<br/>Renal Impairment:: Limited data are available on the use of oral itraconazole
in patients with renal impairment. Caution should be exercised when this drug
is administered in this patient population. (See CLINICAL
PHARMACOLOGY: Special Populations.)<br/>Hepatic Impairment:: Limited data are available on the use of oral itraconazole
in patients with hepatic impairment. Caution should be exercised when this
drug is administered in this patient population. (See CLINICAL
PHARMACOLOGY: Special Populations.)
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Itraconazole is not removed by dialysis. In the event
of accidental overdosage, supportive measures, including gastric lavage with
sodium bicarbonate, should be employed. Limited
data exist on the outcomes of patients ingesting high doses of itraconazole.
In patients taking either 1000 mg of SPORANOX (itraconazole)
Oral Solution or up to 3000 mg of SPORANOX (itraconazole)
Capsules, the adverse event profile was similar to that observed at recommended
doses.
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itraconazole
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Sporanox (Capsule)
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SPORANOX has been associated with
rare cases of serious hepatotoxicity, including liver failure and death. Some
of these cases had neither pre-existing liver disease nor a serious underlying
medical condition. If clinical signs or symptoms develop that are consistent
with liver disease, treatment should be discontinued and liver function testing
performed. The risks and benefits of SPORANOX use should
be reassessed. (See WARNINGS: Hepatic Effects and PRECAUTIONS: General and Information
for Patients.)<br/>Adverse Events in the Treatment of Systemic Fungal Infections: Adverse event data were derived from 602 patients
treated for systemic fungal disease in U.S. clinical trials who were immunocompromised
or receiving multiple concomitant medications. Treatment was discontinued
in 10.5% of patients due to adverse events. The median duration before discontinuation
of therapy was 81 days (range: 2 to 776 days). The table lists adverse events
reported by at least 1% of patients. Adverse events infrequently reported in all studies
included constipation, gastritis, depression, insomnia, tinnitus, menstrual
disorder, adrenal insufficiency, gynecomastia, and male breast pain.<br/>Adverse Events Reported in Toenail Onychomycosis Clinical Trials: Patients in these trials were on a continuous dosing
regimen of 200 mg once daily for 12 consecutive weeks. The following adverse events led to temporary or permanent discontinuation
of therapy. The following adverse events occurred with an
incidence of greater than or equal to 1% (N=112): headache: 10%; rhinitis:
9%; upper respiratory tract infection: 8%; sinusitis, injury: 7%; diarrhea,
dyspepsia, flatulence, abdominal pain, dizziness, rash: 4%; cystitis, urinary
tract infection, liver function abnormality, myalgia, nausea: 3%; appetite
increased, constipation, gastritis, gastroenteritis, pharyngitis, asthenia,
fever, pain, tremor, herpes zoster, abnormal dreaming: 2%.<br/>Adverse Events Reported in Fingernail Onychomycosis Clinical Trials: Patients in these trials were on a pulse regimen
consisting of two 1-week treatment periods of 200 mg twice daily, separated
by a 3-week period without drug. The following
adverse events led to temporary or permanent discontinuation of therapy. The following adverse events occurred with an
incidence of greater than or equal to 1% (N=37): headache: 8%; pruritus, nausea,
rhinitis: 5%; rash, bursitis, anxiety, depression, constipation, abdominal
pain, dyspepsia, ulcerative stomatitis, gingivitis, hypertriglyceridemia,
sinusitis, fatigue, malaise, pain, injury: 3%.<br/>Post-marketing Experience: Worldwide post-marketing experiences with the use
of SPORANOX (all formulations) include very rare reports
(<1/10,000) of the adverse events listed below: There is limited information on the use of SPORANOX during
pregnancy. Cases of congenital abnormalities including skeletal, genitourinary
tract, cardiovascular and ophthalmic malformations as well as chromosomal
and multiple malformations have been reported during post-marketing experience.
A causal relationship with SPORANOX has not been established.
(See CLINICAL PHARMACOLOGY: Special Populations, CONTRAINDICATIONS, WARNINGS,
and PRECAUTIONS: Drug Interactions formore
information.)
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SPORANOX (itraconazole) Capsules
and SPORANOX Oral Solution should not be used interchangeably.
This is because drug exposure is greater with the Oral Solution than with
the Capsules when the same dose of drug is given. In addition, the topical
effects of mucosal exposure may be different between the two formulations.
Only the Oral Solution has been demonstrated effective for oral and/or esophageal
candidiasis.<br/>Hepatic Effects:: SPORANOX has
been associated with rare cases of serious hepatotoxicity, including liver
failure and death. Some of these cases had neither pre-existing liver disease
nor a serious underlying medical condition, and some of these cases developed
within the first week of treatment. If clinical signs or symptoms develop
that are consistent with liver disease, treatment should be discontinued and
liver function testing performed. Continued SPORANOX use
or reinstitution of treatment with SPORANOX is strongly discouraged
unless there is a serious or life threatening situation where the expected
benefit exceeds the risk. (See PRECAUTIONS: Information
for Patients and ADVERSE REACTIONS.)<br/>Cardiac Dysrhythmias:: Life-threatening cardiac dysrhythmias and/or sudden
death have occurred in patients using cisapride, pimozide, levacetylmethadol
(levomethadyl), or quinidine concomitantly with SPORANOX and/or
other CYP3A4 inhibitors. Concomitant administration of these drugs with SPORANOX is
contraindicated. (See BOX WARNING, CONTRAINDICATIONS, and PRECAUTIONS:
Drug Interactions.)<br/>Cardiac Disease:: SPORANOX Capsules
should not be administered for the treatment of onychomycosis in patients
with evidence of ventricular dysfunction such as congestive heart failure
(CHF) or a history of CHF. SPORANOX Capsules should
not be used for other indications in patients with evidence of ventricular
dysfunctionunless the benefit clearly outweighs the risk. For patients with risk factors for congestive heart failure,
physicians should carefully review the risks and benefits of SPORANOX therapy.
These risk factors include cardiac disease such as ischemic and valvular disease;
significant pulmonary disease such as chronic obstructive pulmonary disease;
and renal failure and other edematous disorders. Such patients should be informed
of the signs and symptoms of CHF, should be treated with caution, and should
be monitored for signs and symptoms of CHF during treatment. If signs or symptoms
of CHF appear during administration of SPORANOX Capsules,
discontinue administration. When itraconazole
was administered intravenously to anesthetized dogs, a dose-related negative
inotropic effect was documented. In a healthy volunteer study of SPORANOX Injection
(intravenous infusion), transient, asymptomatic decreases in left ventricular
ejection fraction were observed using gated SPECT imaging; these resolved
before the next infusion, 12 hours later. SPORANOXhas
been associated with reports of congestive heart failure. In post-marketing
experience, heart failure was more frequently reported in patients receiving
a total daily dose of 400 mg than among those receiving lower total daily
doses. This suggests that the risk of heart failure might increase with the
total daily dose of itraconazole. Calcium channel
blockers can have negative inotropic effects which may be additive to those
of itraconazole. In addition, itraconazole can inhibit the metabolism of calcium
channel blockers. Therefore, caution should be used when co-administering
itraconazole and calcium channel blockers due to an increased risk of CHF.
Concomitant administration of SPORANOX and nisoldipine is
contraindicated. Cases of CHF, peripheral edema,
and pulmonary edema have been reported in the post-marketing period among
patients being treated for onychomycosis and/or systemic fungal infections.
(See CLINICAL PHARMACOLOGY: Special Populations, CONTRAINDICATIONS, PRECAUTIONS:
Drug Interactions, and ADVERSE REACTIONS:
Post-marketing Experience for more information.)
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SPORANOX (itraconazole) Capsules
are indicated for the treatment of the following fungal infections in immunocompromised and non-immunocompromised patients: Specimens for fungal cultures and other relevant
laboratory studies (wet mount, histopathology, serology) should be obtained
before therapy to isolate and identify causative organisms. Therapy may be
instituted before the results of the cultures and other laboratory studies
are known; however, once these results become available, antiinfective therapy
should be adjusted accordingly. SPORANOX Capsules
are also indicated for the treatment of the following fungal infections in non-immunocompromised patients: Prior to initiating treatment, appropriate nail specimens
for laboratory testing (KOH preparation, fungal culture, or nail biopsy)
should be obtained to confirm the diagnosis of onychomycosis. (See CLINICAL PHARMACOLOGY: Special Populations, CONTRAINDICATIONS, WARNINGS, and ADVERSE REACTIONS:
Post-marketing Experience for more information.)<br/>Description of Clinical Studies::<br/>Blastomycosis:: Analyses were conducted on data from two open-label,
non-concurrently controlled studies (N=73 combined) in patients with normal
or abnormal immune status. The median dose was 200 mg/day. A response for
most signs and symptoms was observed within the first 2 weeks, and all signs
and symptoms cleared between 3 and 6 months. Results of these two studies
demonstrated substantial evidence of the effectiveness of itraconazole for
the treatment of blastomycosis compared with the natural history of untreated
cases.<br/>Histoplasmosis:: Analyses were conducted on data from two open-label,
non-concurrently controlled studies (N=34 combined) in patients with normal
or abnormal immune status (not including HIV-infected patients). The median
dose was 200 mg/day. A response for most signs and symptoms was observed within
the first 2 weeks, and all signs and symptoms cleared between 3 and 12 months.
Results of these two studies demonstrated substantial evidence of the effectiveness
of itraconazole for the treatment of histoplasmosis, compared with the natural
history of untreatedcases.<br/>Histoplasmosis in HIV-infected patients:: Data from a small number of HIV-infected patients
suggested that the response rate of histoplasmosis in HIV-infected patients
is similar to that of non-HIV-infected patients. The clinical course of histoplasmosis
in HIV-infected patients is more severe and usually requires maintenance therapy
to prevent relapse.<br/>Aspergillosis:: Analyses were conducted on data from an open-label,���single-patient-use���protocol designed to make itraconazole
available in the U.S. for patients who either failed or were intolerant of
amphotericin B therapy (N=190). The findings were corroborated by two smaller
open-label studies (N=31 combined) in the same patient population. Most adult
patients were treated with a daily dose of 200 to 400 mg, with a median duration
of 3 months. Results of these studies demonstrated substantial evidence of
effectiveness of itraconazole as a second-line therapy for the treatment of
aspergillosis compared with the natural history of the disease in patients
who either failed or were intolerant of amphotericin B therapy.<br/>Onychomycosis of the toenail:: Analyses were conducted on data from three double-blind,
placebo-controlled studies (N=214 total; 110 given SPORANOX Capsules)
in which patients with onychomycosis of the toenails received 200 mg of SPORANOX Capsules
once daily for 12 consecutive weeks. Results of these studies demonstrated
mycologic cure, defined as simultaneous occurrence of negative KOH plus negative
culture, in 54% of patients. Thirty-five percent (35%) of patients were considered
an overall success (mycologic cure plus clear or minimal nail involvement
with significantly decreased signs) and 14% of patients demonstrated mycologic
cure plus clinical cure (clearance of all signs, with or without residual
nail deformity). The mean time to overall success was approximately 10 months.
Twenty-one percent (21%) of the overall success group had a relapse (worsening
of the global score or conversion of KOH or culture from negative to positive).<br/>Onychomycosis of the fingernail:: Analyses were conducted on data from a double-blind,
placebo-controlled study (N=73 total; 37 given SPORANOX Capsules)
in which patients with onychomycosis of the fingernails received a 1-week
course (pulse) of 200 mg of SPORANOX Capsules b.i.d., followed
by a 3-week period without SPORANOX, which was followed by
a second 1-week pulse of 200 mg of SPORANOX Capsules b.i.d.
Results demonstrated mycologic cure in 61% of patients. Fifty-six percent
(56%) of patients were considered an overall success and 47% of patients demonstrated
mycologic cure plus clinical cure. The mean time to overall success was approximately
5 months. None of the patients who achieved overall success relapsed.
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Sporanox
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