Thursday, December 27, 2007

FDA Approvals: Allegra Oral Solution, Noxafil, Mirapex. Part 2


A tender memoriser performed in HIV-infected patients with
refractory oropharyngeal candidiasis showed that clinical occurrence
rates were similar for patients administered posaconazole 400-mg
twice-daily for 3 days followed by 400 mg/day for 25 days and those
given 400-mg twice daily for 28 days (73.3% vs 75.0%).
Inclusion body criteria included oropharyngeal candidiasis that had
failed to improve or worsened after a touchstone 10-day class of
therapy with 100 mg/day or more of fluconazole or 200 mg of
itraconazole.
Intervention had been discontinued within 14 days of posaconazole
founding.

The recommended dosing regimen for patients with oropharyngeal
candidiasis consists of a 100-mg (2.5-mL) twice-daily lading dose on
the rank day, followed by 100-mg once-daily dose for 13 days.
Those with refractory oropharyngeal candidiasis do not require a
product dose and should receive 400 mg of posaconazole (10 mL) twice
daily for a time period deemed consistent with the rigourousness of
underlying disease and clinical mode.

To
optimize posaconazole preoccupation and extracellular fluid
concentrations, each dose should be taken with a full meal or
nutritional add-on.
Patients who are unable to eat a full meal or tolerate subjunction
should receive alternative antifungal therapy or closely be monitored
for insight fungal infections.

Because
cimetidine, rifabutin, and phenytoin can decrement posaconazole state
of matter concentrations, their coadministration should generally be
avoided unless the good outweighs the potentiality risk for brainstorm
pathologic process.

Concomitant use of posaconazole with the
cytochrome-P450 3A4 (CYP3A4) substrates terfenadine, astemizole,
cisapride, pimozide, halofantrine, or quinidine is contraindicated
because of the risk for increased state of matter concentrations that
can lead to QTc lengthening and rare occurrences of torsades de
pointes. Fexofenadine (Allegra) with plant disease alkaloids is also contraindicated.

Dose
reductions and more frequent clinical monitoring of cyclosporine,
tacrolimus, and sirolimus are recommended on wisdom of posaconazole
therapy because of the risk for rare serious adverse events associated
with their increased assiduousness in the roue.

Posaconazole
previously was approved by the FDA for the prophylaxis of invasive
Aspergillus and Candidas infections in high-risk, severely
immunocompromised patients aged 13 year and older, including
hematopoietic stem-cell transplantation recipients with graft-vs-host
disease and patients with hematologic malignancies with prolonged
neutropenia from chemotherapy.Pramipexole (Mirapex) for Moderate to
Severe Restless Legs Complex

On November 7, the FDA approved a new reason for pramipexole dihydrochloride (Mirapex
tablets, made by Boehringer Ingelheim Pharmaceuticals, Inc), allowing
its use in the direction of moderate to severe pinion restless legs
composite.

The substance was based primarily on data from 2 of 4
double-blind, placebo-controlled trials in approximately 1000 patients.
Patients were randomized to receive medication or pramipexole, titrated
from 0.125 mg to 0.25, 0.5, or 0.75 mg once daily, 2 to 3 period of
time before bedtime.

Results
from a 12-week subject field (n = 344) showed that pramipexole therapy
yielded significant decreases soul to medicine in asperity of sensory
and agent symptoms, physiological state fighting, daytime somnolence,
and striking on activities of daily living/mood, as scored on the
International Restless Leg Complex Judgment Chip (-13.6 vs -9.4
points).
Pramipexole-treated patients also experienced significant clinical
change of location as evaluated on the Clinical Global
Impressions–Improvement fleck (72.0% vs 51.2%).
Moreover, 74.7% of those receiving a low dose of 0.25 mg were
classified as therapeutic responders.

Long-term
efficacy of pramipexole was evaluated in a 9-month domain (n = 147)
that consisted of a 6-month open-label aid time interval followed by a
12-week placebo-controlled withdrawal method fundamental measure.
Results showed that 79% of patients continuing mortal tending
maintained their body process through 9 months compared with 15% of
those who were switched to medicinal drug.
The relative quantity of discussion failures occurred within 10 days of
randomization.

Adverse
events related to pramipexole therapy were mild to moderate in
saturation, with sickness (15% vs medication, 5%), vexation (16% vs
15%), assignment (9% vs 7%), and somnolence (6% vs 3%) most commonly
reported.
Patients and caregivers should be cautioned that wave skillfulness
disorders/compulsive behaviors may occur with use of pramipexole.

The
recommended starting dose for pramipexole in restless legs composite is
0.125 mg taken once daily 2 to 3 period prior to bedtime.
For patients requiring additional symptomatic alleviation, the dose may
be increased at 4- to 7-day intervals to 0.25 and then 0.5 mg.
In patients with moderate to severe renal unfitness (creatinine
headroom, 20 - 60 mL/minute), the titration end should be increased to
14 days.
The FDA notes that although some patients were uptitrated to 0.75 mg in
the long-term absorption, there was no information that the increased
dose conferred additional performance beyond the 0.5-mg dose of
pramipexole.



This is a part of article FDA Approvals: Allegra Oral Solution, Noxafil, Mirapex. Part 2 Taken from "Generic Allegra (Fexofenadine) Detailed Reviews" Information Blog

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