Lung Deposition of the Dry Powder Fixed Combination Beclometasone Dipropionate Plus Formoterol Fumarate Using NEXThaler® Device in Healthy Subjects, Asthmatic Patients, and COPD Patients

BACKGROUND: This study evaluated the lung deposition and the distribution pattern in the airways of a fixed combination of beclometasone dipropionate (BDP) and formoterol fumarate (FF) (100/6 μg) delivered as an extrafine dry powder formulation (mass median aerodynamic diameter, MMAD (μm) BDP = 1.5; FF = 1.4) through the NEXThaler® device in healthy subjects, asthmatics, and patients with COPD.

METHODS: Healthy subjects (n = 10), asthmatic patients (n = 9; 30%≤FEV1 < 80%), and COPD patients (n = 9; FEV1/FVC ≤70%, 30%≤FEV1 < 50%) completed this open-label, single administration (inhalation of four actuations) parallel group study. After inhalation of 99mTc-radiolabeled BDP/FF combination (radiolabeled BDP + unlabeled FF), the drug deposition was assessed using a gamma-scintigraphy technique. Patients' lung function was assessed.

RESULTS: No significant difference in drug deposition was observed between the three study groups. Mean lung deposition, extrathoracic deposition, and amount exhaled ranged, respectively, between 54.9% and 56.2%, between 41.8% and 43.2%, and between 1.6% and 3.3% of BDP emitted dose (71.7 ± 2.5 μg) for the three study groups. The central to peripheral ratio (reflecting the lung distribution pattern) ranged between 1.23 and 2.02 for the three study groups, indicating a distribution of the drug throughout the airways, including periphery. The study treatment produced a forced expiratory volume in one second (FEV1) increase over time, reaching a maximum improvement generally within 1-4 hours.

CONCLUSIONS: The fixed extrafine dry powder combination BDP/FF (100/6 μg) administered through the DPI NEXThaler® achieved similar intrapulmonary deposition in healthy subjects, in asthmatic patients, and COPD patients (approximately 55% of emitted dose) irrespective of the underlying lung disease with a negligible amount of exhaled particles. The study showed high reliability of the device, reproducible dosing, and distribution throughout the lungs. The results supported the concept of efficient delivery of the combination to the target pulmonary regions, thanks to the extrafine formulation. FEV1 profile confirmed a relevant pharmacodynamic effect of the product.

Medienart:

E-Artikel

Erscheinungsjahr:

2018

Erschienen:

2018

Enthalten in:

Zur Gesamtaufnahme - volume:31

Enthalten in:

Journal of aerosol medicine and pulmonary drug delivery - 31(2018), 5 vom: 01. Okt., Seite 269-280

Sprache:

Englisch

Beteiligte Personen:

Virchow, Johann Christian [VerfasserIn]
Poli, Gianluigi [VerfasserIn]
Herpich, Christiane [VerfasserIn]
Kietzig, Claudius [VerfasserIn]
Ehlich, Hilke [VerfasserIn]
Braeutigam, Daniela [VerfasserIn]
Sommerer, Knut [VerfasserIn]
Häussermann, Sabine [VerfasserIn]
Mariotti, Fabrizia [VerfasserIn]

Links:

Volltext

Themen:

Asthma
BDP/formoterol combination
Beclomethasone
COPD
Drug Combinations
Formoterol Fumarate
Inhaled drug
Journal Article
KGZ1SLC28Z
Lung deposition
NEXThaler® DPI
Research Support, Non-U.S. Gov't
W34SHF8J2K

Anmerkungen:

Date Completed 07.06.2019

Date Revised 07.06.2019

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1089/jamp.2016.1359

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM286321254