ASMANEX HFA (Page 5 of 8)
13 NONCLINICAL TOXICOLOGY
13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility
In a 2-year carcinogenicity study in Sprague Dawley rats, mometasone furoate demonstrated no statistically significant increase in the incidence of tumors at inhalation doses up to 67 mcg/kg (approximately 14 times the MRHD on an AUC basis). In a 19-month carcinogenicity study in Swiss CD-1 mice, mometasone furoate demonstrated no statistically significant increase in the incidence of tumors at inhalation doses up to 160 mcg/kg (approximately 9 times the MRHD on an AUC basis).
Mometasone furoate increased chromosomal aberrations in an in vitro Chinese hamster ovary cell assay, but did not have this effect in an in vitro Chinese hamster lung cell assay. Mometasone furoate was not mutagenic in the Ames test or mouse lymphoma assay, and was not clastogenic in an in vivo mouse micronucleus assay, a rat bone marrow chromosomal aberration assay, or a mouse male germ-cell chromosomal aberration assay. Mometasone furoate also did not induce unscheduled DNA synthesis in vivo in rat hepatocytes.
In reproductive studies in rats, impairment of fertility was not produced by subcutaneous doses up to 15 mcg/kg (approximately 8 times the MRHD on an AUC basis).
14 CLINICAL STUDIES
Adult and Adolescent Patients Aged 12 Years of Age and Older
The safety and efficacy of ASMANEX HFA was demonstrated in two randomized, double-blind, placebo- or active-controlled multi-center clinical trials of 12 and 26 weeks’ duration, conducted as part of a mometasone furoate/formoterol fumarate 100/5 mcg or 200/5 mcg combination product development program. A total of 1509 patients 12 years of age and older with persistent asthma (mean baseline FEV1 of 66% to 73% predicted) were evaluated.
Trial 1: Clinical Trial with ASMANEX HFA 100 mcg
This 26-week, placebo-controlled trial (NCT00383240) conducted as part of a mometasone furoate/formoterol fumarate combination product asthma program evaluated 781 patients 12 years of age and older. Of these patients, 192 patients received ASMANEX HFA 100 mcg and 196 patients received placebo, each administered as 2 inhalations twice daily by metered dose inhalation aerosols. All other maintenance therapies were discontinued. The study included a 2- to 3-week run-in period with ASMANEX HFA 100 mcg, 2 inhalations twice daily. Patients ranged from 12 to 76 years of age, 41% were male and 59% female, and 72% were Caucasian and 28% non-Caucasian. Patients had persistent asthma and were not well controlled on medium dose of inhaled corticosteroids prior to randomization. Mean FEV1 and mean percent predicted FEV1 were similar among all treatment groups (2.33 L, 73%). Thirteen (7%) patients receiving ASMANEX HFA 100 mcg and 46 (23%) patients receiving placebo discontinued the study early due to treatment failure.
The change in mean trough FEV1 from baseline to Week 12 compared to placebo was assessed to evaluate the efficacy of ASMANEX HFA 100 mcg. The change from baseline to week 12 in the mean trough FEV1 was greater among patients receiving ASMANEX HFA 100 mcg 2 inhalations twice daily than among those receiving placebo (treatment difference from placebo 0.12 L and 95% confidence interval [0.05, 0.20]).
Clinically judged deteriorations in asthma or reductions in lung function were also assessed to evaluate the efficacy of ASMANEX HFA 100 mcg. Deteriorations in asthma were defined as any of the following: a 20% decrease in FEV1 ; a 30% decrease in PEF on two or more consecutive days; emergency treatment, hospitalization, or treatment with systemic corticosteroids or other asthma medications not allowed per protocol. Sixty-five (34%) patients who received ASMANEX HFA 100 mcg reported an event compared to 109 (56%) patients who received placebo.
Treatment of asthma patients with ASMANEX HFA 100 mcg, two inhalations twice daily also resulted in fewer nocturnal awakenings and improved morning peak flow compared to those who received placebo.
Trial 2: Clinical Trial with ASMANEX HFA 200 mcg
This 12-week randomized, double-blind, active-controlled trial (NCT00381485) also conducted as part of a mometasone furoate/formoterol fumarate combination product asthma program evaluated a total of 728 patients 12 years of age and older comparing ASMANEX HFA 200 mcg (n=240 patients), mometasone furoate/formoterol fumarate 200 mcg/5 mcg (n=255 patients), and mometasone furoate/formoterol fumarate 100 mcg/5 mcg (n=233 patients), each administered as 2 inhalations twice daily by metered dose inhalation aerosols. All other maintenance therapies were discontinued. This trial included a 2- to 3-week run-in period with ASMANEX HFA 200 mcg, 2 inhalations twice daily. Patients had persistent asthma and were uncontrolled on high-dose inhaled corticosteroids prior to study entry. Patients ranged from 12 to 84 years of age, 44% were male and 56% female, and 89% were Caucasian and 11% non-Caucasian. Mean FEV1 and mean percent predicted FEV1 values were similar among all treatment groups (2.05 L, 66%). The number of patients who discontinued the trial early due to treatment failure were 11 (5%) in the mometasone furoate/formoterol fumarate 100 mcg/5 mcg group, 8 (3%) in the mometasone furoate/formoterol fumarate 200 mcg/5 mcg group, and 13 (5%) in the ASMANEX HFA 200 mcg group.
In order to assess the added benefit of a higher dose of mometasone in the 200 mcg/actuation mometasone furoate product compared to the lower dose 100 mcg/actuation product, trough FEV1 at 12 weeks was compared between the combination mometasone furoate/formoterol fumarate 200 mcg/5 mcg and 100 mcg/5 mcg treatment groups as a secondary endpoint. Improvement in trough FEV1 from baseline to week 12 in patients who received mometasone furoate 200 mcg in combination with formoterol fumarate 5 mcg was numerically greater than among patients who received mometasone furoate 100 mcg in combination with formoterol fumarate 5 mcg (treatment difference of 0.05 L and 95% confidence interval [-0.02, 0.10]).
Other Studies in Adult and Adolescent Patients
In addition to Trial 1 and Trial 2, the safety and efficacy of mometasone furoate MDI 100 mcg and 200 mcg (each administered as 2 inhalations, twice daily), in comparison to placebo were demonstrated in two other 12-week, placebo-controlled trials which evaluated the mean change in FEV1 from baseline as a primary endpoint. A 26-week trial (NCT00383552) also evaluated the same endpoint with a lower dose of mometasone furoate MDI.
Pediatric Patients Aged 5 to Less Than 12 Years
The safety and efficacy of ASMANEX HFA were demonstrated in a 12-week, randomized, double-blind, placebo-controlled, multicenter clinical trial in a total of 583 patients aged 5 to less than 12 years with persistent asthma (mean baseline FEV1 of 79%-predicted) who had been using a low-to-medium dose of ICS with or without LABA for at least 12 weeks prior to study entry. After an approximate 2-week run-in period, subjects were randomized to ASMANEX HFA 50 mcg dose (administered as two inhalations, twice daily), two other doses of ASMANEX HFA, ASMANEX dry-powder inhaler (DPI) or placebo. Patients were 60% male, 71% were Caucasian, and 13% were aged 5 to 6 years old. Primary endpoint results show that after 12 weeks of treatment, ASMANEX HFA 50 mcg (administered as two inhalations, twice daily) was statistically superior to placebo with respect to the improvement from baseline in AM pre-dose percent predicted FEV1 at the end of the dosing interval (6.29%, 95% CI: 3.05, 9.53).
16 HOW SUPPLIED/STORAGE AND HANDLING
16.1 How Supplied
ASMANEX HFA is available in three strengths and supplied in the following package size (TABLE 3):
|Package||NDC||Strength Identifier (Color Band)*|
|ASMANEX HFA 50 mcg 120 metered actuations||78206-111-01||Orange|
|ASMANEX HFA 100 mcg120 metered actuations||78206-112-01||Green|
|ASMANEX HFA 200 mcg120 metered actuations||78206-113-01||Blue|
Each strength is supplied as a pressurized aluminum canister that has a blue plastic actuator integrated with a dose counter and a pink dust cap. Each canister has a net fill weight of 13 grams. Each inhaler is placed into a carton. Each carton contains 1 inhaler.
Initially the dose counter will display “124” actuations. After the initial priming with 4 actuations, the dose counter will read “120” and the inhaler is now ready for use.
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