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WO2002018001A2 - Appareil permettant le traitement d'une maladie pulmonaire avec obstruction chronique et procede associe - Google Patents

Appareil permettant le traitement d'une maladie pulmonaire avec obstruction chronique et procede associe Download PDF

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Publication number
WO2002018001A2
WO2002018001A2 PCT/US2001/026939 US0126939W WO0218001A2 WO 2002018001 A2 WO2002018001 A2 WO 2002018001A2 US 0126939 W US0126939 W US 0126939W WO 0218001 A2 WO0218001 A2 WO 0218001A2
Authority
WO
WIPO (PCT)
Prior art keywords
composition
patient
opening
chamber
treatment
Prior art date
Application number
PCT/US2001/026939
Other languages
English (en)
Other versions
WO2002018001A3 (fr
Inventor
Robert W. Addington
Robert Stephens
Stuart Miller
Original Assignee
Pneumoflex Systems, L.L.C.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pneumoflex Systems, L.L.C. filed Critical Pneumoflex Systems, L.L.C.
Priority to CA002420545A priority Critical patent/CA2420545A1/fr
Priority to EP01968244A priority patent/EP1313525A2/fr
Priority to AU8850301A priority patent/AU8850301A/xx
Priority to AU2001288503A priority patent/AU2001288503B2/en
Priority to MXPA03001840A priority patent/MXPA03001840A/es
Publication of WO2002018001A2 publication Critical patent/WO2002018001A2/fr
Publication of WO2002018001A3 publication Critical patent/WO2002018001A3/fr

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/0012Galenical forms characterised by the site of application
    • A61K9/007Pulmonary tract; Aromatherapy
    • A61K9/0073Sprays or powders for inhalation; Aerolised or nebulised preparations generated by other means than thermal energy
    • A61K9/008Sprays or powders for inhalation; Aerolised or nebulised preparations generated by other means than thermal energy comprising drug dissolved or suspended in liquid propellant for inhalation via a pressurized metered dose inhaler [MDI]
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00Inhalators
    • A61M15/0001Details of inhalators; Constructional features thereof
    • A61M15/0021Mouthpieces therefor
    • A61M15/0023Mouthpieces therefor retractable
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00Inhalators
    • A61M15/009Inhalators using medicine packages with incorporated spraying means, e.g. aerosol cans
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2209/00Ancillary equipment
    • A61M2209/06Packaging for specific medical equipment

Definitions

  • the present invention relates to the medical field, and more particularly to a treatment for a pulmonary disease involving chronic obstruction of the airways, to a nebulizer apparatus for delivery of the medication, and to a treatment kit therefor.
  • references Cited 1. Addington WR, Stephens RE, Gflliland K, Rodriguez . Assessing the laryngeal cough reflex and the risk of developing pneumonia after stroke. Arch Phys ed Rehabil. 1999;80:150-4. 2. Addington WR, Stephens RE, Gilliland KA. Assessing the laryngeal cough reflex and the risk of developing pneumonia after stroke: an interhospital comparison. Stroke. 1999;30: 1203-7. 3. Tomori Z, Stransky A. Electroneurographic and pneumotachographic analysis of the expiration reflex. Physiol Bohemoslov. 1973;22:589-601. 4. Fujimura M, Sakamoto S, Kamio Y, Matsuda T. Cough receptor sensitivity and bronchial responsiveness in normal and asthmatic subjects. Eur Respir J. 1992;5:291-5.
  • Widdicombe JG Reflexes from the upper respiratory tract. Bethesda, MD: The American Physiological Society; 1986.
  • Widdicombe JG Afferent receptors in the airways and cough. Respir Physiol. 1998 Oct; 114:5-15.
  • Widdicombe J Airway receptors. Respir Physiol. 2001;125:3-15. 17. Widdicombe JG. Chemoreceptor control of airways. Respir Physiol.
  • the laryngeal cough reflex (LCR) and its precursor, the laryngeal cough expiratory reflex (LCER), are primal, brainstem mediated reflexes that have been shown in humans to protect the upper airway from the aspiration of potentially harmful material into the lungs.
  • the LCER when stimulated via the inhalation of a nebulized composition of tartaric acid, triggers a cascade of neurological events which ultimately results in the contraction of the abdominal and intercostal muscles to produce an initial expiration in an attempt to clear the abnormal aspirant. This is followed by a series of more forceful coughs with inspiratory and expiratory components (LCRs).
  • the present invention advantageously provides a nebulizer apparatus for treatment of a patient having a pulmonary disease involving chronic obstruction of the airways.
  • the apparatus is adapted for self-treatment by the patient, and comprises a container sized to be portable by the patient and having therein a chamber containing a composition comprising a pharmaceutically acceptable carrier mixed with L-tartaric acid.
  • a nebulizing valve having an opening connected to the chamber is positioned so as to provide an outlet therefor, and a source of motivating force connected with the chamber so as to motivate the composition through the opening in the nebulizing valve to thereby cause nebulization of the composition.
  • nebulization comprises droplets having an airborne diameter of less than about 10 ⁇ m, and the L-tartaric acid is mixed in the composition in an amount effective for causing an increase in peak respiratory flow when inhaled by the patient.
  • the invention also includes a method for treatment of a patient having a pulmonary disease involving chronic obstruction of the airways.
  • the method comprises inhalation by the patient of a nebulized composition comprising a pharmaceutically acceptable carrier mixed with L-tartaric acid in an amount effective for causing an increase in peak respiratory flow.
  • the pharmaceutically acceptable carrier preferably comprises a solution having at least about 0.15 M sodium chloride, and at least about 20% L- tartrate.
  • a treatment kit is adapted for self-treatment by a patient having a pulmonary disease involving chronic obstruction of the airways.
  • the kit comprises a container sized to be portable by the patient, and containing a pharmaceutically acceptable carrier mixed with L-tartaric acid in an amount effective for causing an increase in peak respiratory flow when inhaled by the patient, a nebulizing valve connected to the chamber, and a source of pneumatic pressure to motivate the composition through the valve to thereby generate a nebulized composition comprising droplets having an airborne diameter of less than about 10 ⁇ m.
  • the kit also includes a generally tubular mouthpiece connectable to the container so as to be in fluid connection with the nebulizing valve to convey the nebulized composition into a patient's mouth for oral inhalation by the patient.
  • the kit may also comprise a removable cap fitting over the mouthpiece, a nose clip to aid the patient in oral inhalation of the composition, and a respiratory flow meter for determining increase in peak respiratory flow.
  • FIG. 1 is a flow diagram illustrating a treatment method according to an embodiment of the present invention
  • FIG. 2 shows the nebulizer apparatus of the present invention in use
  • FIG. 3 is a top plan view of a kit comprising the described invention for self-treatment by a patient.
  • the RCT stimulates cough receptors in the vestibule of the larynx and initiates the LCER/LCR.[4,5,8-10]
  • the RCT (Pneumoflex Systems, Inc., Orlando, FL) was performed by administering to the subjects a composition comprising a 20% solution of pharmaceutical grade L-tartaric acid dissolved in sterile 0.15 M NaCI solution, and inhaled from a Bennett Twin nebulizer. During the inhalation, the subject's nose was pinched closed. The nebulizer output was approximately 0.2 ml/min. [1,2,4-6,8, 10] The subjects were tested in the standing position for all PFT and RCT tests. Subjects were tested for two effective inhalations.
  • the subject was asked to exhale, then insert the mouthpiece, and take a sharp, deep inhalation. Leakage around the mouthpiece and "puffing" the nebulizer were not considered effective inhalations.
  • the respiratory therapist used a Spiromate AS-600 for all PFTs (SN6546, Riko Medical and Scientific Corporation Instruments).
  • FEV1/FVC Pre . RCT
  • FEV1/FVC Post _ 5 RCT
  • the mean age of the normal and asthmatic subjects was 36.85 ⁇ 8.62 (S.D.), and 66.20 ⁇ 13.13, respectively. All subjects had a normal ⁇ reflex response to RCT, consisting of LCER efforts followed by the LCR without adverse effects.
  • Table 3 shows that for each of the ten investigated variables, the normal group always had greater mean values than did the asthma group.
  • nasopharyngeal mucosa causes bronchodilatation [11], but the receptors for this reflex are not very chemosensitive and the associated respiratory changes are not expiration or cough but are inspiratory efforts (the aspiration reflex). Based on this, it would appear that nasopharyngeal reflexes are unlikely to mediate any bronchodilatation after the RCT.
  • the laryngeal receptors for the LCER and the LCR are almost certainly rapidly adapting ("irritant") receptors (RARs), both In experimental animals [12] and in man [8], and they are stimulated by acid solutions.
  • RARs rapidly adapting receptors
  • C-fiber receptors in the trachea, bronchi and alveolar walls are also all stimulated by acid solutions, and while the response of laryngeal C-fiber receptors to acid does not seem to have been studied, there is no reason to believe that they behave differently from those elsewhere in the respiratory tract.
  • the invention includes a method for treatment of a patient having a pulmonary disease involving chronic obstruction of the airways.
  • the method comprises inhalation of a nebulized composition of L-tartrate in a pharmaceutically acceptable carrier in an amount effective for causing an increase in peak respiratory flow.
  • the method starts [Block 5] with preparation of the composition [Block 7], followed by nebulization of the composition [Block 9], inhalation of the nebulized composition by the patient [Block 11], and finally by measuring the respiratory peak flow [Block 13]. Inhalation may be repeated if no increase is measured [Block 15]. If increased flow is noted, the method stops [Block 17].
  • L-tartrate is preferably in a substantially soluble form in an aqueous solution of isotonic sodium chloride.
  • a concentration of L-tartrate which is preferred in the present invention is about 20% L-tartrate.
  • the nebulized composition preferably comprises droplets having an airborne diameter of about 10 ⁇ m or less to promote penetration into the lower respiratory airways. The composition was found to be adequately nebulized at a rate of about 0.2 ml per minute.
  • the pulmonary disease comprises the group of chronic obstructive pulmonary diseases consisting of simple chronic bronchitis, asthma and asthmatic bronchitis, chronic obstructive bronchitis, emphysema, bronchiectasis, cystic fibrosis, and bronchiolitis.
  • a nebulizer apparatus 20 adapted for self-treatment by a patient having a pulmonary disease involving chronic obstruction of the airways, as shown in use in FIG. 2.
  • the nebulizer includes a container 22 sized to be portable by the patient and having therein a chamber containing a composition comprising a pharmaceutically acceptable carrier mixed with L-tartaric acid in an amount effective for causing an increase in peak respiratory flow when inhaled by the patient.
  • a nebulizing valve having an opening is connected to the chamber so as to provide an outlet therefor.
  • a source of motivating force communicates with the chamber so as to motivate the composition through the opening in the nebulizing valve to thereby cause nebulization of the composition to comprise droplets having an airborne diameter of less than about 10 ⁇ m.
  • the container 22 comprises a metal cylinder
  • the source of motivating force comprises pneumatic pressure, and preferably a compressed gas within the container.
  • the nebulizer apparatus 20 comprises a mouthpiece 24 positioned in fluid connection with the opening and downstream therefrom to thereby convey the nebulized composition to the mouth of the patient so as to facilitate oral inhalation.
  • the pharmaceutically acceptable carrier preferably comprises a solution of at least about 0.15 M sodium chloride, and is prepared with at least about 20% L-tartaric acid.
  • FIG. 3 Yet another aspect of the invention, as shown in FIG. 3, includes a treatment kit 30 adapted for self-treatment by a patient having a pulmonary disease involving chronic obstruction of the airways.
  • the kit 30 comprises the container 22 described above, and a mouthpiece 24 connectable to the container so as to be in fluid connection with the valve opening and downstream therefrom to thereby convey the nebulized composition into a patient's mouth to facilitate oral inhalation.
  • the treatment kit advantageously may further comprise a removable cap 26 fitting over the mouthpiece 24 for protection.
  • the treatment kit may include a plurality of containers thereby providing replacements, and may also include a nose clip 28, and a respiratory flow meter 32 for measuring increased peak respiratory flow.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pulmonology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Anesthesiology (AREA)
  • Otolaryngology (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Medicinal Preparation (AREA)

Abstract

L'invention concerne un appareil et un procédé permettant le traitement d'un patient atteint d'une maladie pulmonaire avec obstruction chronique des voies aériennes. Cet appareil comporte un récipient comprenant une chambre contenant une composition de L-tartrate dans un excipient pharmaceutiquement acceptable; une ouverture pratiquée dans la chambre de manière à permettre une sortie de la composition, l'ouverture étant dimensionnée pour produire des gouttelettes d'un ordre de grandeur prédéterminé adapté à la composition qui est dirigée depuis la chambre à travers l'ouverture; et une source propulsive connectée à la chambre de façon à propulser la composition à travers l'ouverture et provoque ainsi la nébulisation de la composition. Une trousse de traitement comprend le récipient décrit ainsi qu'un embout buccal raccordable au récipient, de manière à être en connexion fluidique avec l'ouverture et permettre une projection vers l'aval, afin de transporter ainsi la composition nébulisée jusque dans la bouche d'un patient pour lui faciliter de la sorte l'inhalation orale de la composition nébulisée.
PCT/US2001/026939 2000-08-30 2001-08-30 Appareil permettant le traitement d'une maladie pulmonaire avec obstruction chronique et procede associe WO2002018001A2 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA002420545A CA2420545A1 (fr) 2000-08-30 2001-08-30 Appareil permettant le traitement d'une maladie pulmonaire avec obstruction chronique et procede associe
EP01968244A EP1313525A2 (fr) 2000-08-30 2001-08-30 Appareil permettant le traitement d'une maladie pulmonaire avec obstruction chronique et procede associe
AU8850301A AU8850301A (en) 2000-08-30 2001-08-30 Apparatus for treatment of chronic obstructive pulmonary disease and associated method
AU2001288503A AU2001288503B2 (en) 2000-08-30 2001-08-30 Apparatus for treatment of chronic obstructive pulmonary disease and associated method
MXPA03001840A MXPA03001840A (es) 2000-08-30 2001-08-30 Aparato para el tratamiento de padecimiento pulmonar obstructivo cronico y metodo asociado.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22906600P 2000-08-30 2000-08-30
US60/229,066 2000-08-30

Publications (2)

Publication Number Publication Date
WO2002018001A2 true WO2002018001A2 (fr) 2002-03-07
WO2002018001A3 WO2002018001A3 (fr) 2002-07-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/026939 WO2002018001A2 (fr) 2000-08-30 2001-08-30 Appareil permettant le traitement d'une maladie pulmonaire avec obstruction chronique et procede associe

Country Status (5)

Country Link
EP (1) EP1313525A2 (fr)
AU (2) AU8850301A (fr)
CA (1) CA2420545A1 (fr)
MX (1) MXPA03001840A (fr)
WO (1) WO2002018001A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7992803B2 (en) 2007-10-31 2011-08-09 Stevens Medical, Llc Nebulizer having a high efficiency impactor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5839430A (en) * 1996-04-26 1998-11-24 Cama; Joseph Combination inhaler and peak flow rate meter
CA2315777C (fr) * 1998-01-16 2008-12-23 1263152 Ontario Inc. Dispositif indicateur a utiliser conjointement avec un dispositif distributeur
SE9801077D0 (sv) * 1998-03-27 1998-03-27 Shl Medical Ab Inhalator
US6004268A (en) * 1998-04-21 1999-12-21 Addington; W. Robert Aspiration screening process for assessing post surgery patient's risk for pneumonia

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7992803B2 (en) 2007-10-31 2011-08-09 Stevens Medical, Llc Nebulizer having a high efficiency impactor

Also Published As

Publication number Publication date
MXPA03001840A (es) 2004-11-01
EP1313525A2 (fr) 2003-05-28
AU2001288503B2 (en) 2007-05-17
CA2420545A1 (fr) 2002-03-07
AU8850301A (en) 2002-03-13
WO2002018001A3 (fr) 2002-07-25

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