Joachim Maus

MEDA Pharma, Solna, Stockholm, Sweden

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Publications (16)49.56 Total impact

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    ABSTRACT: Asthma is one of the most common chronic diseases worldwide. Patient persistence with treatment is essential to achieve sufficient outcomes, in particular to avoid exacerbations. To investigate inhaled corticosteroid (ICS) therapy with two different inhalers (Novolizer® and Turbuhaler®) by comparing persistence, concomitant use of additional asthma medication and occurrence of exacerbations in real life. Study design: A retrospective analysis of prescription data from outpatient treatment was performed using the IMS Disease Analyzer. It provides longitudinal anonymized patient data from ~ 3,000 office-based physicians in Germany. Treatment persistence of asthma patients (ICD 10 code: J45) using 200 μg budesonide either via Novopulmon®/Budecort® (Novolizer group = NOV) or Pulmicort® (Turbuhaler group = TUR) was compared. Eligible patients hadthe first prescription of ICS medication (index day) between June 2001 and September 2007 and a data history available for at least twelve months before and after the index day. Analysis of 1,780 NOV and 664 TUR patients revealed that 1 year after index day, 89% NOV patients remained on their ICS compared to 85% TUR patients. NOV patients changed significantly less often and later to another ICS (p = 0.0108; log-rank test). Significantly fewer NOV patients switched temporarily or permanently to another ICS during the observation time (NOV group: 14.7%; TUR group: 20.8%; p = 0.0002, log-rank test). On average, NOV and TUR patients received comparable prescriptions of short acting medication (NOV more SABA, TUR more formoterol). There was a trend towards fewer prescriptions of systemic corticosteroids in NOV patients. Our results suggest better therapy persistence with NOV compared to TUR during asthma treatment in Germany. This can be a marker of better compliance and may contribute to prevent exacerbations. However, the number of exacerbations per patient year in the NOV group (0.12) compared to the TUR group (0.18) was not statically significantly lower (p = 0.4096).
    International journal of clinical pharmacology and therapeutics 04/2012; 50(4):257-64. · 1.20 Impact Factor
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    ABSTRACT: • The topical second generation anti-histamine azelastine hydrochloride (AZE) and the potent corticosteroid fluticasone propionate (FP) are well established first-line treatments in allergic rhinitis (AR). • MP29-02, a novel intranasal AZE and FP formulation, has been shown to control AR symptoms faster and better than standard intranasal AZE or FP. • The systemic bioavailabilities of marketed AZE and FP nasal spray products have been established at about 40% and 1% only, respectively. • For new combination medicinal products such as MP29-02, the determination of possible pharmacokinetic (PK) drug-drug interactions between both active components and formulation-based bioavailability alterations is essential. • This paper provides for the first time information on potential drug-drug interactions, AZE and FP bioavailability and disposition characteristics of each component administered by the novel nasal spray formulation MP29-02. • The studies employed highly sensitive FP and AZE LC-MS/MS assays and could therefore be conducted with recommended therapeutic doses, thereby circumventing previously recognized draw-backs that required nasal bioavailability studies to be conducted using supra-therapeutic doses. • No significant PK drug-drug interaction between the active components AZE and FP was noted for MP29-02. • AZE bioavailabilty was equivalent when MP29-02 data were compared with MP29-02-AZE-mono and Astelin®. • Increased FP exposure was observed with MP29-02-based products compared with FP-BI. FP serum concentrations were generally very low with all investigational products suggesting no clinically meaningful pharmacodynamic differences in terms of systemic safety. To determine azelastine hydrochloride (AZE) and fluticasone propionate (FP) bioavailabilities of the novel nasal spray combination product MP 29-02, compared with MP29-02-based products containing only AZE (MP29-02-AZE-mono), FP (MP29-02-FP-mono), marketed AZE and FP single entity products (Astelin® and FP Boehringer-Ingelheim; FP-BI). Two randomized, three period, six sequence, three treatment crossover studies were conducted in healthy subjects. Study 1 administered 200 µg FP as MP29-02, MP29-02-FP-mono or FP-BI. Study 2 administered 548 µg AZE as MP29-02, MP29-02-AZE-mono or Astelin®. Each dose consisted of two sprays/nostril. Serum FP and plasma AZE were followed over 24 (FP) and 120 h (AZE) and quantified by LC-MS/MS. Peak (C(max) ) and total exposures AUC(0,t(last) ) were compared between the treatments by anova. Study 1: Average FP C(max) was very low with all products (≤ 10 pg ml(-1) ). FP AUC(0,t(last) ) point estimates (90% CIs) for MP29-02 : MP29-02-FP-mono and MP29-02 : FP-BI ratios (%) were 93.6 (83.6, 104.7) and 161.1 (137.1, 189.3). Corresponding ratios for C(max) were 91.0 (82.5, 100.4) and 157.4 (132.5, 187.1). Study 2: AZE AUC(0,t(last) ) point estimates (90% CIs) for MP29-02 : MP29-02-AZE-mono and MP29-02 : Astelin® ratios (%) were 98.8 (91.0, 107.4) and 105.5 (95.6, 116.4). Corresponding outcomes for C(max) were 102.7 (92.1, 114.4) and 107.3 (92.6, 124.3). No interactions of AZE and FP were found with the MP29-02 formulation. Azelastine bioavailability was similar for MP29-02 and Astelin®. Maximum and total FP exposure was higher for MP29-02-based products compared with FP-BI. FP concentrations were generally very low with all investigational products and did not suggest clinically meaningful differences concerning systemic safety.
    British Journal of Clinical Pharmacology 02/2012; 74(1):125-33. · 3.69 Impact Factor
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    Robert Hermann, Peter Cnota, Joachim Maus
    British Journal of Clinical Pharmacology 01/2012; 74(1):207-8. · 3.69 Impact Factor
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    ABSTRACT: To evaluate the efficacy and safety of α-lipoic acid (ALA) over 4 years in mild-to-moderate diabetic distal symmetric sensorimotor polyneuropathy (DSPN). RESEARCH DESIGN AND METHODS In a multicenter randomized double-blind parallel-group trial, 460 diabetic patients with mild-to-moderate DSPN were randomly assigned to oral treatment with 600 mg ALA once daily (n = 233) or placebo (n = 227) for 4 years. Primary end point was a composite score (Neuropathy Impairment Score [NIS]-Lower Limbs [NIS-LL] and seven neurophysiologic tests). Secondary outcome measures included NIS, NIS-LL, nerve conduction, and quantitative sensory tests (QSTs). Change in primary end point from baseline to 4 years showed no significant difference between treatment groups (P = 0.105). Change from baseline was significantly better with ALA than placebo for NIS (P = 0.028), NIS-LL (P = 0.05), and NIS-LL muscular weakness subscore (P = 0.045). More patients showed a clinically meaningful improvement and fewer showed progression of NIS (P = 0.013) and NIS-LL (P = 0.025) with ALA than with placebo. Nerve conduction and QST results did not significantly worsen with placebo. Global assessment of treatment tolerability and discontinuations due to lack of tolerability did not differ between the groups. The rates of serious adverse events were higher on ALA (38.1%) than on placebo (28.0%). Four-year treatment with ALA in mild-to-moderate DSPN did not influence the primary composite end point but resulted in a clinically meaningful improvement and prevention of progression of neuropathic impairments and was well tolerated. Because the primary composite end point did not deteriorate significantly in placebo-treated subjects, secondary prevention of its progression by ALA according to the trial design was not feasible.
    Diabetes care 07/2011; 34(9):2054-60. · 7.74 Impact Factor
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    ABSTRACT: The objective of this non-controlled interventional clinical study was to evaluate the efficacy of imiquimod in the treatment of fields with multiple, multiform AK. 180 office-based dermatological practices in Germany participated. Patients with clinically typical, visible AK lesions on the head were treated with 5% imiquimod cream 3 times per week for 4 weeks followed by a 4 week treatment pause. If lesions were still present, a second treatment course of treatment (COT) was given. Complete clearance rate, i.e. no clinically visible AK lesions in the treatment area, was the main outcome measure. 829 patients were enrolled. The complete clearance rate was 40.5% after the first COT and 68.9% overall. Altogether, 85.4% of the 7,427 baseline lesions were cleared. Patients with hyperkeratotic/hypertrophic lesions showed comparable responses. Local skin reactions were the most commonly reported adverse effects, causing discontinuation in only 4 patients. Severity of the local skin reactions was a strong predictor of the outcome. Patients with multiple multiform AK on the head can be successfully and safely treated with topical imiquimod in daily practice. Assurance of patient understanding that treatment success is closely correlated to proper drug administration is important.
    European journal of dermatology: EJD 06/2009; 19(4):355-9. · 1.95 Impact Factor
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    ABSTRACT: Imiquimod 5% cream is an immune response modifier approved for the treatment of superficial basal cell carcinoma (sBCC) once daily, 5 x per week for 6 weeks. This report reveals the final results of a 5-year follow-up study to evaluate the recurrence rate of sBCCs treated with imiquimod. As previously reported, 182 patients were enrolled in the study and 163 (89.6%) had no clinical evidence of their target sBCC at the 12-week post-treatment assessment; these 163 were followed for up to 5 years. During the follow-up period, 18 clinical recurrences occurred at the target tumour site, 8 and 10 of which occurred during the first 6 and 12 months of follow-up, respectively. The 5-year Kaplan-Meier and life-table estimates for sustained clinical clearance of those patients initially cleared were 84.5% and 86.9%, respectively, and 90.3% considering histology. The estimate of overall treatment success for all treated patients at the end of follow-up was 77.9% (80.9% considering histology). The data support clinical assessment of initial response as predictive of long-term outcome. Most of the recurrences occurred early, indicating that careful follow-up is important during the first year after treatment.
    European journal of dermatology: EJD 11/2008; 18(6):677-82. · 1.95 Impact Factor
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    ABSTRACT: The present study aimed at assessing the pharmacokinetics (PK) and safety pharmacodynamics (PD) of 24 microg formoterol delivered via a Novolizer and via an Aerolizer in healthy subjects. This was a randomized, open-label, crossover study. Beside PK, serum potassium, and glucose profiles, vital signs, and ECG were recorded. Twenty-nine subjects (15 males) were enrolled. The inhalation maneuver had to be repeated by 19 subjects using the Aerolizer and 1 subject using a Novolizer. While eight (28%) subjects completely failed to inhale correctly via the Aerolizer (four were identified by the investigators immediately after inhalation, another four by bioanalytics later), all did it correctly via the Novolizer. The bioanalytical evaluation indicated two distinct serum peaks. The shapes of serum concentration-time profiles were more homogeneous after inhaling via the Novolizer than via the Aerolizer. After adjusting for the delivered dose the Cmax of formoterol predicting pulmonary absorption was higher after the Novolizer than after the Aerolizer, while the average AUC0-infinity levels indicating total systemic exposure were equivalent. There was no evidence for different pharmacodynamic behavior with respect to serum potassium and glucose profiles, vital signs, and ECG. The Novolizer yields higher pulmonary absorption of formoterol than the Aerolizer and equivalent safety profiles. Considering the lower variability of PK profiles and the higher proportion of correct inhalations, formoterol is more reliably inhaled via Novolizer.
    Journal of Aerosol Medicine and Pulmonary Drug Delivery 08/2008; 21(3):309-19. · 2.89 Impact Factor
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    ABSTRACT: Because of environmental concerns CFC-containing pressurised metered dose inhalers (pMDI) had to be replaced by dry powder inhalers (DPI). The Novolizer, a novel DPI has previously been shown to be as effective as the Turbuhaler in delivering budesonide. The objective of this study was to show non-inferiority of inhaled formoterol therapy delivered through the Novolizer compared to formoterol delivered through the Aerolizer in patients suffering from moderate to severe asthma. In this double-blind, double-dummy, multicentre study 392 patients were randomised and received a dose of 12 microg formoterol twice daily for 4 weeks either through the Aerolizer or the Novolizer. FEV1 after 4 weeks of treatment was the primary variable. Secondary variables were FVC, PEF, consumption of short-acting; 2 adrenoceptor agonists, asthma symptoms, tolerability and safety. After 4 weeks of treatment, the mean trough FEV1 (95% CI) was 2.34 L (2.24-2.45) for the Novolizer and 2.31 L (2.21-2.41) for the Aerolizer. Non-inferiority was proven (p<0.0001, pre-defined; of 0.25 L). All secondary variables (incl. PEF) confirmed these findings. Treatment with both devices was safe and well tolerated. Inhalation of 12 microg formoterol twice daily via Novolizer was shown to be equally therapeutically effective compared to the inhalation via Aerolizer in the treatment of moderate to severe persistent asthma. Treatment via both inhalers was safe and well tolerated.
    Pulmonary Pharmacology &amp Therapeutics 02/2008; 21(1):47-53. · 2.54 Impact Factor
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    ABSTRACT: The leukotriene inhibitor montelukast has been recommended against exercise-induced asthma (EIA), however, single-dose agents might be favourable in several aspects. To compare the protective effects against EIA of a single inhalation of the combination disodium cromoglycate (DSCG, CAS 16110-51-3) and reproterol (REP, CAS 54063-54-6) with 3 days oral treatment of montelukast (MON, CAS 158966-92-8). Open-label, cross-over, single-centre trial. Twenty-four 6 to 18-year-old children and adolescents, with reversible and stable airway obstruction, baseline FEV1 > or = 70%, predicted and proven EIA (i.e. a maximum decrease of FEV1 by > or = 20% compared with baseline) were treated with MON, orally for 3 days in the evening, or one single inhalation of DSCG/REP 20 min before the exercise challenge. The treatment sequence was randomised. The exercise test on a treadmill was performed under standardised conditions. 24 patients completed both periods. Both treatments clearly provided protection against EIA; however, protection of DSCG/REP was more pronounced than that of MON. This difference was statistically significant even if the data were adjusted for the increase in FEV1 between inhalation of DSCG/REP and challenge (DSCG/REP(adjusted). The nadir FEV1 level after exercise following prophylaxis with DSCG/REP was even higher than the pre-inhalation FEV1 value. From these data, protection indices of 66%, 81%, and 113% for MON, DSCG/REP(adjusted), and DSCG/REP(unadjusted), respectively, were estimated. Inhalation of DSCG/REP before exercise provides significantly better protection against EIA than three days treatment with MON.
    Arzneimittel-Forschung 01/2008; 58(6):303-9. · 0.56 Impact Factor
  • Journal of Allergy and Clinical Immunology - J ALLERG CLIN IMMUNOL. 01/2008; 121(2).
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    ABSTRACT: We compared the peak inspiratory flows (PIF) generated through a novel dry powder inhaler device, the Novolizer (PIF-N), and the Turbuhaler (PIF-T). Forty-six pediatric patients with stable bronchial asthma were randomized in an open-label, multicenter, crossover trial. No drug was administered during the inhalation maneuvers that were spaced by 10 min. There was neither a carryover nor a sequence effect. The patients were characterized by mean age of 8.5 years, mean FEV(1) of 1.79 L, and mean PIF without any device (baseline, PIF-B) of 185 L/min. Through the devices mean PIF-N of 94 L/min and mean PIF-T of 69 L/min were achieved, calculated from the maxima of three inhalations. This resulted in p < 0.0001 for the difference. The median PIFN/PIF-T ratio was estimated as 1.39. Each child achieved a higher PIF-N than PIF-T and was able to release the feedback mechanisms of the Novolizer indicating sufficient inhalation performance. We conclude that the PIF through the Novolizer is higher than the PIF through the Turbuhaler in stable asthmatic children. The flow rates achieved through the Novolizer allow for sufficient lung deposition even in children as young as 6 years.
    Journal of Aerosol Medicine 02/2007; 20(1):50-8. · 1.61 Impact Factor
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    ABSTRACT: Currently, much effort is geared towards developing therapies that impact on the inflammation in respiratory diseases such as asthma and COPD, assuming that this will improve disease pathology. R,R-Glycopyrrolate, a quaternary ammonium compound, is a muscarinic receptor antagonist with the potential to be used as a long-acting bronchodilator in patients with asthma and COPD. In this study we evaluated whether the combination of R,R-glycopyrrolate with known anti-inflammatory drugs results in synergistic effects. Human primary monocytes were used as an in vitro model system. M3, M4, M1 and M2 receptors were expressed in these cells in descending order. The combinatory effects of the drugs on the release of TNF-alpha after lipopolysaccharide stimulation were analyzed. R,R-Glycopyrrolate alone did not affect LPS induced TNF-alpha release. The PDE4 inhibitor rolipram dose dependently inhibited the TNF-alpha release. Maximum inhibition was around 70%. The IC(35) for rolipram was 68.9+/-15.2 nM. The simultaneous administration of 10 microM R,R-glycopyrrolate reduced the IC(35) to 1.70+/-1.18 nM. The anti-histamine azelastine inhibited TNF-alpha release dose dependently. The simultaneous administration of R,R-glycopyrrolate did not influence the action of azelastine. The corticosteroid budesonide inhibited the TNF-alpha release dose dependently with an IC(50) of 0.55+/-0.13 nM. The simultaneous administration of 10 microM R,R-glycopyrrolate reduced the IC(50) to 0.13+/-0.03 nM. Finally, R,R-glycopyrrolate was most effective in the triple combination with budesonide and rolipram in the reduction of TNF-alpha release. In conclusion, R,R-glycopyrrolate acts synergistically with the PDE4 inhibitor rolipram and the steroid budesonide in inhibiting inflammatory mediators.
    Biochemical Pharmacology 01/2007; 72(12):1690-6. · 4.58 Impact Factor
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    ABSTRACT: The aim of this trial was to evaluate the effects of alpha-lipoic acid (ALA) on positive sensory symptoms and neuropathic deficits in diabetic patients with distal symmetric polyneuropathy (DSP). In this multicenter, randomized, double-blind, placebo-controlled trial, 181 diabetic patients in Russia and Israel received once-daily oral doses of 600 mg (n = 45) (ALA600), 1,200 mg (n = 47) (ALA1200), and 1,800 mg (ALA1800) of ALA (n = 46) or placebo (n = 43) for 5 weeks after a 1-week placebo run-in period. The primary outcome measure was the change from baseline of the Total Symptom Score (TSS), including stabbing pain, burning pain, paresthesia, and asleep numbness of the feet. Secondary end points included individual symptoms of TSS, Neuropathy Symptoms and Change (NSC) score, Neuropathy Impairment Score (NIS), and patients' global assessment of efficacy. Mean TSS did not differ significantly at baseline among the treatment groups and on average decreased by 4.9 points (51%) in ALA600, 4.5 (48%) in ALA1200, and 4.7 (52%) in ALA1800 compared with 2.9 points (32%) in the placebo group (all P < 0.05 vs. placebo). The corresponding response rates (>/=50% reduction in TSS) were 62, 50, 56, and 26%, respectively. Significant improvements favoring all three ALA groups were also noted for stabbing and burning pain, the NSC score, and the patients' global assessment of efficacy. The NIS was numerically reduced. Safety analysis showed a dose-dependent increase in nausea, vomiting, and vertigo. Oral treatment with ALA for 5 weeks improved neuropathic symptoms and deficits in patients with DSP. An oral dose of 600 mg once daily appears to provide the optimum risk-to-benefit ratio.
    Diabetes Care 11/2006; 29(11):2365-70. · 7.74 Impact Factor
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    ABSTRACT: Retigabine (RGB) is an investigational antiepileptic drug, which undergoes extensive UGT1A1, 1A9 and 1A4-mediated N-glucuronidation and N-acetylation. The mono-acetylated metabolite of RGB has some pharmacological activity and is denoted AWD21-360. We investigated whether the pharmacokinetics (PK) of RGB and AWD21-360 are altered in subjects with Gilbert's syndrome (GS) and/or with frequent N-acetyltransferase 2 (NAT2) slow acetylator (SA) polymorphisms. Based on consistent genotyping and phenotyping screening results, 37 Caucasian subjects (21-46 years; 31 men, six women) were assigned to one of the following groups: (1) absence of GS (non-GS)/rapid acetylator (RA) (N=11); (2) GS/RA (N=8); (3) non-GS/SA (N=11); (4) GS/SA (N=7). Subjects received single and multiple (b.i.d.) 200-mg oral RGB doses over 5 days. Blood samples were collected up to 60 h after dosing for plasma PK of RGB and AWD21-360. Group comparisons were performed by ANOVA. Single-dose PK of RGB and AWD21-360 and multiple-dose PK of RGB did not differ significantly between groups. After multiple dose treatment, RA subjects showed a significantly higher total exposure to AWD21-360 of about 32% (95% CI 101.9-172.5) relative to SA subjects (P=0.0362). The UGT1A1 metabolic capacity (i.e. presence or absence of GS), however, did not significantly affect the overall exposure to AWD21-360. The results indicate that the PK of RGB is unaltered in individuals with GS, in subjects with NAT2 SA status, and in carriers of both variants, whereas the total exposure to AWD21-360 is significantly related to the RA or SA status of subjects. Results further suggest that metabolic switching to the mono-acetylated metabolite AWD21-360 may partially compensate for the impaired glucuronidation capacity in GS subjects. RGB treatment showed no significant differences in tolerability and safety between groups.
    The Pharmacogenomics Journal 01/2006; 6(3):211-9. · 5.13 Impact Factor
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    ABSTRACT: Different oral sustained-release (SR) formulations of tramadol have been introduced in pain treatment in order to prolong the dosage interval to improve convenience for the patient. The objective of this study was to compare tramadol pharmacokinetics and intra- and intersubject variability after replicate single-dose administrations of a multiple-units SR formulation (capsule) and a single-unit formulation (tablet). This was a randomised, single-dose, single-centre study with an open-label, four-period, two-sequence, two-formulation, replicate crossover design in healthy subjects under fed conditions. The main outcome measures were the intra- and intersubject variance of the area under the concentration-time curve from 0 to 12 hours (AUC(12)) and maximum concentration (C(max)), as well as the mean AUC(12) and C(max) for tramadol. Study drugs were a tramadol SR multiple-units formulation (capsule) and a tramadol SR single-unit formulation (tablet), each containing tramadol hydrochloride 100mg. The time interval from 0 to 12 hours of AUC(12) of the single-dose design corresponds to the recommended twice-daily dosage interval for both study drugs during long-term treatment. The two formulations were equivalent in the area under the curve (AUC(infinity): 2411 vs 2527 mug . h/L). However, capsules led to a lower C(max) (148.6 vs 183.2 mug/L), to a later time to reach C(max) (5.9 vs 4.9 hours), and to a longer half-value duration (13.4 vs 10.4 hours). In addition, intrasubject variability of AUC(12) was significantly smaller for capsules than for tablets (p = 0.041). Capsules also produced smaller intra- and intersubject variability in plasma concentrations during the first 2.5 and 3.0 hours after administration, respectively (p < 0.05). Although tramadol SR capsules and tramadol SR tablets led to an equivalent systemic exposure to the drug, capsules provided a smoother and more extended plasma profile. In addition, in the case of capsules, bioavailability was subjected to lower variability in terms of both rate and extent of absorption.
    Clinical Drug Investigation 01/2005; 25(7):435-43. · 1.70 Impact Factor
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    ABSTRACT: To assess whether asthmatic children may generate sufficient peak inspiratory flow through the Novolizer, a novel multiple dose dry powder inhaler with acoustic and optical feedback mechanisms for correct inhalation. 137 children (median age 7 years, range 4-2) with mild to moderate persistent asthma (FEV1 < 90% predicted or pre-treated with low-dose steroids) participated in this open, multi-centre study. After assessment of FEV1 and peak inspiratory flow (without inhalator device, PIF), the children were instructed to inhale with the Novolizer (PIF through inhaler, PIF-N). All assessments were done in triplicate and the mean out of three attempts analysed. Mean PIF was 128 +/- 61 l/min and mean PIF-N was 69 +/- 18 l/min. This is distinctly above the rate necessary to overcome the Novolizer's trigger threshold. PIF performance through the Novolizer was linear in the age interval of 4-8 years, no further increase was observed beyond 8 years. The medium to low intrinsic resistance of the Novolizer permits a relatively high PIF through this device. Together with the feedback mechanisms, this makes the Novolizer particularly valuable for inhalation therapy in asthmatic children with drugs such as salbutamol, formoterol, or budesonide.
    Respiratory Medicine 11/2004; 98(10):924-31. · 2.59 Impact Factor

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270 Citations
49.56 Total Impact Points

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  • 2008
    • MEDA Pharma
      Solna, Stockholm, Sweden