Vectura Gmbh

Chiesi Farmaceutici S.p.a.

Rajbir Gill

Gaetano Brambilla

Rossella Musa

Lorenzo Ferrarini

John Nicholas Staniforth

David Alexander Vodden Morton

Lorenzno Ferrarini

A powder for use in a dry powder inhaler comprises: i) a fraction of fine particle size constituted by a mixture of physiologically acceptable excipient and an additive; ii) a fraction of coarse particles; and iii) at least one active ingredient. The powder is suitable for efficacious delivery of active ingredients into the low respiratory tract of patients suffering from pulmonary diseases such as asthma. In particular, the invention provides a formulation to be administered as dry powder for inhalation which is freely flowable, can be produced in a simple way, is physically and chemically stable and capable of delivering accurate doses and/or high fine particle fraction of low strength active ingredients by using a high- or medium resistance device.

Pharmaceutical formulations for dry powder inhalers

A formulation for an inhaler device comprises carrier particles having a diameter of at least 50 &#x3bc;m and a mass median diameter of at least 175 &#x3bc;m; active particles; and additive material to which is able to promote release of the active particles from the carrier particles on actuation of the inhaler device. The formulation has excellent flowability even at relatively high fine particle contents.

Formulations for use in inhaler devices

A powder for use in a dry powder inhaler comprises: i) a fraction n of fine particle size constituted by a mixture of physiologically acceptable excipient and an additive; ii) a fraction of coarse particles; and iii) at least one active ingredient. The powder is suitable for efficacious delivery of active ingredients into the low respiratory tract of patients suffering from pulmonary diseases such as asthma. In particular, the invention provides a formulation to be administered as dry powder for inhalation which is freely flowable, can be produced in a simple way, is physically and chemically stable and capable of delivering accurate doses and/or high fine particle fraction of low strength active ingredients by using a high- or medium resistance device.

The invention provides a formulation to be administered as a dry powder for inhalation suitable for efficacious delivery of active ingredients into the low respiratory tract of patients suffering from a pulmonary disease such as asthma. In particular, the invention provides a formulation to be administered as dry powder for inhalation freely flowable, which can be produced in a simple way, is physically and chemically stable and capable of delivering both accurate doses and high fine particle fraction of low strength active ingredients by using a high- or medium resistance device.

Pharmaceutical formulations for dry powder inhalers in the form of hard-pellets

The invention provides a formulation to be administered as dry powder for inhalation suitable for efficacious delivery of active ingredients into the low respiratory tract of patients suffering of pulmonary diseases such as asthma. In particular, the invention provides a formulation to be administered as dry powder for inhalation freely flowable, which can be produced in a simple way, physically and chemically stable and able of delivering either accurate doses and high fine particle fraction of low strength active ingredients by using a high- or medium resistance device.

Growing community of inventors

Wiltshire, United Kingdom

Rajbir Gill