WO2003094932A1 - Carbon monoxide as a biomarker and therapeutic agent - Google Patents
Carbon monoxide as a biomarker and therapeutic agent Download PDFInfo
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- WO2003094932A1 WO2003094932A1 PCT/US2002/014836 US0214836W WO03094932A1 WO 2003094932 A1 WO2003094932 A1 WO 2003094932A1 US 0214836 W US0214836 W US 0214836W WO 03094932 A1 WO03094932 A1 WO 03094932A1
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61K33/00—Medicinal preparations containing inorganic active ingredients
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- A—HUMAN NECESSITIES
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- A61P11/00—Drugs for disorders of the respiratory system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61P13/00—Drugs for disorders of the urinary system
- A61P13/12—Drugs for disorders of the urinary system of the kidneys
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- A—HUMAN NECESSITIES
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- A61P17/02—Drugs for dermatological disorders for treating wounds, ulcers, burns, scars, keloids, or the like
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P19/00—Drugs for skeletal disorders
- A61P19/02—Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/14—Drugs for disorders of the nervous system for treating abnormal movements, e.g. chorea, dyskinesia
- A61P25/16—Anti-Parkinson drugs
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
Definitions
- the present invention relates to the use of carbon monoxide (CO) as a biomarker and therapeutic agent of heart, lung, liver, spleen, brain, skin and kidney diseases and other conditions and disease states including, for example, asthma, emphysema, bronchitis, adult respiratory distress syndrome, sepsis, cystic fibrosis, pneumonia, interstitial lung diseases, idiopathic pulmonary diseases, other lung diseases including primary pulmonary hypertension, secondary pulmonary hypertension, cancers, including lung, larynx and throat cancer, arthritis, wound healing, Parkinson's disease, Alzheimer's disease, peripheral vascular disease and pulmonary vascular thrombotic diseases such as pulmonary embolism.
- CO carbon monoxide
- CO may be used to provide anti-inflammatory relief in patients suffering from oxidative stress and other conditions especially including sepsis and septic shock.
- CO may be used to store organs prior to transplantation.
- carbon monoxide may be used as a biomarker or therapeutic agent for reducing respiratory distress in lung transplant patients, to reduce or inhibit oxidative stress, inflammation or rejection of transplants in transplant patients.
- Heme oxygenase catalyzes the first and rate limiting step in the degradation of heme to yield equimolar quantities of biliverdin IXa, carbon monoxide (CO), and iron (Choi et al., Am. J. Respir. Cell Mol. Biol. 15: 9-19; and Maines, Annu. Rev. Pharmacol. Toxicol. 37: 517-554).
- heme is the major substrate of HO-1
- non-heme agents including heavy metals, cytokines, hormones, endotoxin and heat shock are also strong inducers of HO-1 expression (Choi et al., supra, Maines, supra and Tenhunen et al., J. Lab. Clin. Med. 75: 410-421).
- This diversity of HO-1 inducers has provided further support for the speculation that HO-1, besides its role in heme degradation, may also play a vital function in maintaining cellular homeostasis.
- HO-1 is highly induced by a variety of agents causing oxidative stress including hydrogen peroxide, glutathione depletors, UN irradiation, endotoxin and hyperoxia (Choi, et al. supra. Maines, supra and Keyse, et al. Proc. ⁇ atl. Acad. Sci. USA . 86: 99-103 ).
- oxidative stress including hydrogen peroxide, glutathione depletors, UN irradiation, endotoxin and hyperoxia.
- HO-1 can serve as a key biological molecule in the adaptation and/or defense against oxidative stress (Choi, et al., supra.. Lee, et al., Proc ⁇ atl Acad Sci USA 93: 10393-10398; Otterbein et al, Am. J. J.
- Carbon monoxide (CO) is a gaseous molecule with known toxicity and lethality to living organisms (Haldane, Biochem. J. 21: 1068- 1075; and Chance, et al., 1970, Ann. ⁇ Y Acad Sci. 174: 193-204.).
- CO Carbon monoxide
- Mammalian cells have the ability to generate endogenous CO primarily through the catalysis of heme by the enzyme heme oxygenase (HO) (Choi et al., supra and Maines, supra).
- CO akin to the gaseous molecule nitric oxide, plays important roles in mediating neuronal transmission (Nerma et al., supra and Xhuo, et al., Science 260: 1946-1950) and in the regulation of vasomotor tone (Morita, and Kourembanas, 1995, J. Clin. Invest. 96: 2676-2682.; Morita et al., 1995 Proc. ⁇ atl. Acad. Sci.
- Septic shock and sepsis syndrome resulting from excessive stimulation of immune cells, particularly monocytes and macrophages, remains one of the leading causes of death in hospitalized patients.
- the pathophysiological alterations observed in sepsis are often not due to the infectious organism itself, but rather to the uncontrolled production of pro- inflammatory cytokines and chemokines including TNF- ⁇ , IL-1, and MIP-1 that leads to leukocyte recruitment, capillary leak and ultimately participates in the lethality of sepsis.
- Lipopolysaccharide a constituent of the gram negative bacterial cell wall, is the leading cause of sepsis, and when administered experimentally to macrophages or mice, mimics the same inflammatory response.
- MAP mitogen activated protein
- the present invention relates to novel pharmaceutical compositions for delivering to patients suffering from the effects of oxidative stress, the compositions comprising effective concentrations of carbon monoxide in a gaseous mixture comprising oxygen and optionally, nitrogen gas (as well as other minor optional gaseous components).
- An additional aspect of the present invention is directed to a method for delaying the onset of, inhibiting or alleviating the effects of oxidative stress, the method comprising delivering a therapeutic gas comprising carbon monoxide in an amount and for a time effective to delay the onset of, inhibit or alleviate the effects of oxidative stress in the patient.
- a therapeutic gas comprising low concentrations (i.e., concentrations ranging from about 1 ppb (part per billion) to about 3,000 ppm (preferably above about 0.1 ppm within this range) of the gas, preferably about 1 ppm to about 2,800 ppm, more preferably about 25 ppm to about 750 ppm, even more preferably about 50 ppm to about 500 ppm, e.g., about 250 ppm) of carbon monoxide is an extremely effective method for delaying the onset of, inhibiting or reversing the effects of oxidative stress in a patient. This is an unexpected result. It is noted here that in the method of the present invention, an amount of carbon monoxide in the therapeutic gaseous composition which is in excess of 0.3% may sometimes be used, depending upon the condition or disease state to be treated.
- the present invention is directed to the use of carbon monoxide gas in the preparation of a medicament for use in treating a patient suffering from or at risk for emphysema, bronchitis, cystic fibrosis, pneumonia, interstitial lung disease, wound healing, arthritis, Parkinson's disease, and/or Alzheimer's disease.
- the present invention is directed to the use of carbon monoxide gas in the preparation of a medicament for use in treating a patient suffering from or at risk for localized inflammation of the kidney, spleen, and/or skin.
- the present invention also provides methods for using carbon monoxide as a biomarker for determining that a patient is suffering from oxidative stress or is at risk for or is suffering from a number of conditions or disease states that are secondary to or result in oxidative stress, for example, asthma, emphysema, bronchitis, adult respiratory distress syndrome, sepsis, cystic fibrosis, pneumonia, interstitial lung diseases, idiopathic pulmonary diseases, other lung diseases including primary pulmonary hypertension, secondary pulmonary hypertension, cancers, including lung, larynx and throat cancer, arthritis, wound healing, Parkinson's disease, Alzheimer's disease, peripheral vascular disease and pulmonary vascular thrombotic diseases such as pulmonary embolism, among others.
- oxidative stress for example, asthma, emphysema, bronchitis, adult respiratory distress syndrome, sepsis, cystic fibrosis, pneumonia, interstitial lung diseases, idiopathic pulmonary diseases, other lung diseases including primary pulmonary hypertension
- the method comprises detecting carbon monoxide in a patient's breath to determine whether detectable levels of carbon monoxide occur in the breath. If detectable levels of carbon monoxide appear in the patient's breath, the patient may be diagnosed with oxidative stress or for being at risk for oxidative stress.
- the manifestations of oxidative stress may take the form of one or more of the above-referenced conditions or disease states. Appropriate therapeutic steps or other steps may be taken after such diagnosis to alleviate or treat the condition that is responsible for the oxidative stress in the patient.
- the method includes measuring carbon monoxide in breath exhaled by a patient, wherein an amount of carbon monoxide of at least about 1 ppm in the breath is indicative that the patient is at risk for sepsis or septic shock.
- Another aspect of the present invention relates to the finding that in certain patients, the administration of carbon monoxide in effective amounts to the patient may be used to induce HO-1 enzyme in the patient and prevent or limit oxidative stress in the patient, especially oxidative stress caused by hyperoxia or sepsis. HO-1 enzyme is implicated in maintaining homeostasis in the cells of the patient.
- Still another aspect of the present invention relates to the use of carbon monoxide to delay the onset of, inhibit or alleviate the effects of oxidative stress which occur in transplant patients, in particular, organ transplant patients, especially, but not exclusively lung transplant patients.
- Another aspect of the present invention relates to a method for inhibiting the production of pro-inflammatory cytokines such as TNF- ⁇ , IL-l ⁇ , IL-6, and MlP-l ⁇ and augmenting the production (expression) of the anti-inflammatory cytokine IL-10 and IL-4 in a patient, the method comprising administering to the patient an effective amount of CO.
- pro-inflammatory cytokines such as TNF- ⁇ , IL-l ⁇ , IL-6, and MlP-l ⁇
- Still another aspect of the present invention relates to a method to preserve organs or tissue for transplants comprising adding to media in which the organs or tissue are stored a preservative effective amount or concentration of carbon monoxide.
- the inclusion of carbon monoxide in effective amounts reduces, inhibits or alleviates the formation of reactive oxygen in the stored organ or tissue, thus extending the period in which organ transplants can be effectively stored without suffering oxidative damage.
- the method includes providing a medium comprising carbon monoxide and storing the organ in the medium, wherein the carbon monoxide is present in the medium in an amount sufficient to enhance storage stability of the organ.
- Another aspect of the present invention relates to a method to prevent or reduce the likelihood of damage caused by oxidative stress associated with hyperoxia in a patient comprising administering an effective amount of carbon monoxide to a hyperoxic patient.
- carbon monoxide (or “CO) as used herein describes molecular carbon monoxide in its gaseous state, compressed into liquid form, or dissolved in aqueous solution.
- carbon monoxide composition or “pharmaceutical composition comprising carbon monoxide” is used throughout the specification to describe a gaseous or liquid composition containing carbon monoxide that can be administered to a patient and/or an organ. The skilled practitioner will recognize which form of the pharmaceutical composition, e.g., gaseous, liquid, or both gaseous and liquid forms, is preferred for a given application.
- effective amount refers to the administration of carbon monoxide in an amount or concentration and for period of time including acute or chronic administration and periodic or continuous administration that is effective within the context of its administration for causing an intended effect or physiological outcome.
- effective amounts of carbon monoxide generally fall within the range of about 0.0000001% to about 0.3% by weight, e.g., 0.0001% to about 0.25% by weight, preferably at least about 0.001%, e.g., at least about 0.005%, 0.010%, 0.02%, 0.025%, 0.03%, 0.04%, 0.05%, 0.06%, 0.08%, 0.10%, 0.15%, 0.20%, 0.22%, or 0.24% by weight carbon monoxide.
- Preferred ranges include, e.g., 0.001% to about 0.24%, about 0.005% to about 0.22%, about 0.005% to about 0.05%, about 0.010% to about 0.20%, about 0.02% to about 0.15%, about 0.025% to about 0.10%, or about 0.03% to about 0.08%, or about 0.04% to about 0.06%.
- effective amounts generally fall within the range of about 0.0001 to about 0.0044 g CO/100 g liquid, e.g., at least about 0.0001, 0.0002, 0.0004, 0.0006, 0.0008, 0.0010, 0.0013, 0.0014, 0.0015, 0.0016, 0.0018, 0.0020, 0.0021, 0.0022, 0.0024, 0.0026, 0.0028, 0.0030, 0.0032, 0.0035, 0.0037, 0.0040, or 0.0042 g CO/100 g aqueous solution.
- Preferred ranges include, e.g., about 0.0010 to about 0.0030 g CO/100 g liquid, about 0.0015 to about 0.0026 g CO/100 g liquid, or about 0.0018 to about 0.0024 g CO/ 100 g liquid.
- An effective amount of carbon monoxide within the context of reducing the production or effect of inflammatory cytokines can be, for example, an amount sufficient to inhibit production and/or effect of TNF- ⁇ , IL-1, IL-6 and MIP-1, among others. Alternatively, it can be an amount sufficient to induce or increase production of anti-inflammatory cytokines such as IL- 10, among others.
- an effective amount of carbon monoxide is that amount administered to the transplant patient to reduce the likelihood of rejection through an unfavorable immunological reaction.
- an effective amount of carbon monoxide can be an amount that is added, e.g., bubbled, into the medium in which the transplant organs are stored in order to enhance preservation of the organ and reduce the likelihood that the organ will be subject to some measure of oxidative damage.
- amounts outside of the ranges described above may be used depending upon the application.
- patient is used throughout the specification to describe an animal, human or non-human, to whom treatment according to the methods of the present invention is provided.
- Veterinary applications are clearly anticipated by the present invention.
- the term includes but is not limited to mammals, e.g., humans, other primates, pigs, rodents such as mice and rats, rabbits, guinea pigs, hamsters, cows, horses, cats, dogs, sheep and goats.
- treat(ment), is used herein to describe delaying the onset of, inhibiting, or alleviating the effects of a condition, e.g., emphysema, bronchitis, arthritis, cystic fibrosis, pneumonia, interstitial lung disease, Parkinson's disease, Alzheimer's disease, or inflammation of the kidneys, spleen, or skin.
- a condition e.g., emphysema, bronchitis, arthritis, cystic fibrosis, pneumonia, interstitial lung disease, Parkinson's disease, Alzheimer's disease, or inflammation of the kidneys, spleen, or skin.
- wound healing the term describes the promotion of wound healing, e.g., the promotion of skin wound healing.
- Individuals considered at risk for developing a condition described herein may benefit particularly from the invention, primarily because prophylactic treatment can begin before there is any evidence of the condition.
- a patient can be determined to be at risk for any of the conditions described herein by any method known in the art
- biomarker is used to describe carbon monoxide produced in the breath of a patient in minor, detectable amounts, and which provides evidence that the patient is at risk for, is in the early stages of, or is suffering from oxidative stress is at risk for or is suffering from one or more of the conditions or disease states that are secondary to or that may result in oxidative stress.
- the amount of carbon monoxide in the breath of a patient that may function as a biomarker may be as low as 0.001 ppm, but is generally at least about 0.1 ppm.
- a carbon monoxide composition may be a gaseous carbon monoxide composition.
- compressed or pressurized gas useful in the methods of the invention can be obtained from any commercial source, and in any type of vessel appropriate for storing compressed gas.
- compressed or pressurized gases can be obtained from any source that supplies compressed gases, such as oxygen, for medical use.
- the pressurized gas including carbon monoxide used in the methods of the present invention can be provided such that all gases of the desired final composition (e.g., CO, CO 2 , O 2 , N 2 ) are mixed in the same vessel.
- the methods of the present invention can be performed using multiple vessels containing individual gases.
- a single vessel can be provided that contains carbon monoxide, with or without other gases, the contents of which can be optionally mixed with room air or with the contents of other vessels, e.g., vessels containing oxygen, nitrogen, carbon dioxide, helium, compressed air, or any other suitable gas or mixtures thereof.
- Gaseous compositions administered to a patient according to the present invention typically contain 0% to about 79% by weight nitrogen, about 21% to about 100% by weight oxygen and about 0.0000001% to about 0.3% by weight
- the amount of nitrogen in the gaseous composition is about 79% by weight
- the amount of oxygen is about 21% by weight
- the amount of carbon monoxide is about 0.0001% to about 0.25% by weight, preferably at least about 0.001%, e.g., at least about 0.005%, 0.010%, 0.02%, 0.025%, 0.03%, 0.04%, 0.05%, 0.06%, 0.08%, 0.10%, 0.15%, 0.20%, 0.22%, or 0.24% by weight of carbon monoxide.
- Preferred ranges include 0.005% to about 0.24%, about 0.01% to about 0.22%, and about 0.08% to about 0.20%. It is noted that gaseous carbon monoxide compositions having concentrations of carbon monoxide greater than 0.3% (such as 1 % or greater) may be used for short periods (e.g., one or a few breaths), depending upon the application.
- a gaseous carbon monoxide composition may be used to create an atmosphere that comprises carbon monoxide gas.
- An atmosphere that includes appropriate levels of carbon monoxide gas can be created, for example, by providing a vessel containing a pressurized gas comprising carbon monoxide gas, and releasing the pressurized gas from the vessel into a chamber or space to form an atmosphere that includes the carbon monoxide gas inside the chamber or space.
- the gases can be released into an apparatus that culminates in a breathing mask or breathing tube, thereby creating an atmosphere comprising carbon monoxide gas in the breathing mask or breathing tube, ensuring the patient is the only person in the room exposed to significant levels of carbon monoxide.
- Carbon monoxide levels in an atmosphere can be measured or monitored using any method known in the art. Such methods include electrochemical detection, gas chromatography, radioisotope counting, infrared absorption, colorimetry, and electrochemical methods based on selective membranes (see, e.g., Sunderman et al, Clin. Chem. 28:2026-2032, 1982; Ingi et al, Neuron 16:835-842, 1996). Sub-parts per million carbon monoxide levels can be detected by, e.g., gas chromatography and radioisotope counting.
- carbon monoxide levels in the sub-ppm range can be measured in biological tissue by a midinfrared gas sensor (see, e.g., Morimoto et al., Am. J. Physiol. Heart. Circ. Physiol 280:H482-H488, 2001). Carbon monoxide sensors and gas detection devices are widely available from many commercial sources.
- a carbon monoxide composition may also be a liquid carbon monoxide composition.
- a liquid can be made into a carbon monoxide composition by any method known in the art for causing gases to become dissolved in liquids.
- the liquid can be placed in a so-called "CO 2 incubator" and exposed to a continuous flow of carbon monoxide, preferably balanced with carbon dioxide, until a desired concentration of carbon monoxide is reached in the liquid.
- carbon monoxide gas can be "bubbled” directly into the liquid until the desired concentration of carbon monoxide in the liquid is reached. The amount of carbon monoxide that can be dissolved in a given aqueous solution increases with decreasing temperature.
- an appropriate liquid may be passed through tubing that allows gas diffusion, where the tubing runs through an atmosphere comprising carbon monoxide (e.g., utilizing a device such as an extracorporeal membrane oxygenator).
- the carbon monoxide diffuses into the liquid to create a liquid carbon monoxide composition.
- the liquid can be any liquid known to those of skill in the art to be suitable administration to a patient (see, for example, Oxford Textbook of Surgery, Morris and Malt, Eds., Oxford University Press (1994)).
- the liquid will be an aqueous solution.
- PBS Phosphate Buffered Saline
- CelsiorTM PerfadexTM
- Collins solution citrate solution
- UW University of Wisconsin
- Any suitable liquid can be saturated to a set concentration of carbon monoxide via gas diffusers.
- pre-made solutions that have been quality controlled to contain set levels of carbon monoxide can be used. Accurate control of dose can be achieved via measurements with a gas permeable, liquid impermeable membrane connected to a carbon monoxide analyzer. Solutions can be saturated to desired effective concentrations and maintained at these levels.
- a patient can be treated with a carbon monoxide composition by any method known in the art of administering gases and/or liquids to patient.
- Carbon monoxide compositions can be administered to a patient diagnosed with, or determined to be at risk, for example, for emphysema, bronchitis, arthritis, cystic fibrosis, pneumonia, interstitial lung disease, Parkinson's disease, Alzheimer's disease, or inflammation of the kidneys, spleen, or skin; or to promote wound healing, e.g., healing of skin wounds not associated with surgery.
- the invention contemplates the systemic administration of liquid or gaseous carbon monoxide compositions to patients (e.g., by inhalation and/or ingestion), and the topical administration of the compositions to the patient's lungs (e.g., by inhalation or intratracheal administration), joints (e.g., by infusion or transdermal administration) skin (e.g., by injection or by applying the composition to the surface of the skin), and other organs (e.g., by ingestion, insufflation, and/or introduction into the abdominal cavity).
- patients e.g., by inhalation and/or ingestion
- topical administration of the compositions to the patient's lungs e.g., by inhalation or intratracheal administration
- joints e.g., by infusion or transdermal administration
- skin e.g., by injection or by applying the composition to the surface of the skin
- other organs e.g., by ingestion, insufflation, and/or introduction into the abdominal cavity
- Gaseous carbon monoxide compositions can be delivered systemically to a patient. Gaseous carbon monoxide compositions are typically administered by inhalation through the mouth or nasal passages to the lungs, where the carbon monoxide may exert its effect directly or be readily absorbed into the patient's bloodstream.
- concentration of active compound (CO) utilized in the therapeutic gaseous composition will depend on absorption, distribution, inactivation, and excretion (generally, through respiration) rates of the carbon monoxide as well as other factors known to those of skill in the art.
- Ventilators Medical grade carbon monoxide (concentrations can vary) can be purchased mixed with air or another oxygen-containing gas in a standard tank of compressed gas (e.g., 21% O 2 , 79% N 2 ). It is non-reactive, and the concentrations that are required for the methods of the present invention are well below the combustible range (10% in air). In a hospital setting, the gas presumably will be delivered to the bedside where it will be mixed with oxygen or house air in a blender to a desired concentration in ppm (parts per million). The patient will inhale the gas mixture through a ventilator, which will be set to a flow rate based on patient comfort and needs. This is determined by pulmonary graphics (i.e., respiratory rate, tidal volumes etc.).
- Fail-safe mechanism(s) to prevent the patient from unnecessarily receiving greater than desired amounts of carbon monoxide can be designed into the delivery system.
- the patient's carbon monoxide level can be monitored by studying (1) carboxyhemoglobin (COHb), which can be measured in venous blood, and (2) exhaled carbon monoxide collected from a side port of the ventilator.
- COHb carboxyhemoglobin
- Carbon monoxide exposure can be adjusted based upon the patient's health status and on the basis of the markers. If necessary, carbon monoxide can be washed out of the patient by switching to 100% O inhalation. Carbon monoxide is not metabolized; thus, whatever is inhaled will ultimately be exhaled except for a very small percentage that is converted to CO .
- Carbon monoxide can also be mixed with any level of O 2 to provide therapeutic delivery of carbon monoxide without consequential hypoxic conditions.
- a carbon monoxide-containing gas mixture is prepared as above to allow passive inhalation by the patient using a facemask or tent.
- the concentration inhaled can be changed and can be washed out by simply switching over to 100% O 2 .
- Monitoring of carbon monoxide levels would occur at or near the mask or tent with a fail-safe mechanism that would prevent too high of a concentration of carbon monoxide from being inhaled.
- Compressed carbon monoxide can be packaged into a portable inhaler device and inhaled in a metered dose, for example, to permit intermittent treatment of a recipient who is not in a hospital setting.
- Different concentrations of carbon monoxide could be packaged in the containers.
- the device could be as simple as a small tank (e.g., under 5 kg) of appropriately diluted CO with an on-off valve and a tube from which the patient takes a whiff of CO according to a standard regimen or as needed.
- An artificial lung designed for O 2 delivery and CO 2 removal can be used for carbon monoxide delivery.
- the catheter when implanted, resides in one of the large veins and would be able to deliver carbon monoxide at given concentrations either for systemic delivery or at a local site.
- the delivery can be a local delivery of a high concentration of carbon monoxide for a short period of time at the site of the procedure, e.g., in proximity to the spleen or kidney (this high concentration would rapidly be diluted out in the bloodstream), or a relatively longer exposure to a lower concentration of carbon monoxide (see, e.g., Hattler et al., Artif. Organs 18(11):806-812 (1994); and Golob et al, ASAIO J., 47(5):432-437 (2001)).
- the patient would be inside an airtight chamber that would be flooded with carbon monoxide (at a level that does not endanger the patient, or at a level that poses an acceptable risk without the risk of bystanders' being exposed.
- the chamber could be flushed with air (e.g., 21% O 2 , 79% N 2 ), and samples could be analyzed by carbon monoxide analyzers to ensure no carbon monoxide remains before allowing the patient to exit the exposure system.
- a liquid composition comprising carbon monoxide can be created for systemic delivery to a patient, e.g., for oral delivery and/or by injection into the body, e.g., intravenously, intra-arterially, intraperitoneally, and or subcutaneously.
- carbon monoxide compositions can be applied directly to organs, e.g., the skin, spleen, lung, and/or kidney(s).
- Gaseous compositions can be applied directly to the interior and/or exterior of the patient's body to treat the patient's organs.
- a gaseous composition can be directly applied to the internal organs of a patient by any method known in the art for insufflating gases into a patient.
- gases e.g., carbon dioxide
- the skin and underlying joints can be treated topically with a gaseous composition by, for example, exposing the affected skin to the gaseous composition in a normobarometric chamber (described above), and/or by blowing the carbon monoxide composition directly onto the skin.
- Liquid carbon monoxide compositions can also be administered topically to a patient's organs.
- Liquid forms of the compositions can be administered by any method known in the art for administering liquids to patients.
- liquid compositions can be applied directly to the interior and/or exterior of the body to treat a patient's organs.
- the liquid compositions can be administered orally, e.g., by causing the patient to ingest an encapsulated or unencapsulated dose of the aqueous carbon monoxide composition.
- liquids e.g., saline solutions containing dissolved CO
- in situ exposures or organs e.g., kidney(s) and spleen, can be performed by any method known in the art, e.g., by in situ flushing of the organ with a liquid carbon monoxide composition (see Oxford Textbook of Surgery, Morris and Malt, Eds., Oxford University Press (1994)).
- the skin can be treated topically with a liquid composition by, for example, injecting the liquid compositions into the skin.
- the skin and underlying joints can be treated topically by applying the liquid composition directly to the surface of the skin, e.g., by pouring or spraying the liquid onto the skin and/or by submerging the skin in the liquid composition.
- Carbon monoxide gas can be used in the preparation of a medicament for use in treating conditions or disease states such as asthma, emphysema, bronchitis, adult respiratory distress syndrome, sepsis, cystic fibrosis, pneumonia, interstitial lung diseases, idiopathic pulmonary diseases, other lung diseases including primary pulmonary hypertension, secondary pulmonary hypertension, cancers, including lung, larynx and throat cancer, arthritis, Parkinson's disease, Alzheimer's disease, peripheral vascular disease and pulmonary vascular thrombotic diseases such as pulmonary embolism; and in treating a patient suffering from or at risk for localized inflammation of organs, e.g., the kidney, spleen, and/or skin.
- the present invention can also be used to aid in wound healing, e.g., skin wound healing. Of particular interest is treatment of wounds not caused by surgery.
- the present invention may also be used to delay the onset of, or alleviate the effects of oxidative stress in transplant patients, in particular organ transplant patients, especially lung transplant patients.
- the carbon monoxide compositions may also be used to treat inflammatory conditions of the lungs or inflammation that occurs secondary to sepsis or rejection in transplant patients. While not being limited by way of theory, low dosage CO is believed to act as an anti-inflammatory agent by inhibiting the production and/or effect of pro-inflammatory cytokines such as TNF- ⁇ , EL-1, IL-6, MIP-1, and/or by inducing or promoting the action of anti -inflammatory cytokines EL-4 and IL-10.
- pro-inflammatory cytokines such as TNF- ⁇ , EL-1, IL-6, MIP-1
- Oxidative stress is used to describe a condition resulting from the overwhelming production of reactive oxygen which cannot be quenched by endogenous antioxidants. Oxidative stress may result in permanent tissue damage caused by the action of the reactive oxygen species on the tissue.
- the physiological manifestation of oxidative stress take the form of or occurs during various conditions or disease states that include asthma, emphysema, bronchitis, adult respiratory distress syndrome, sepsis or septic shock, cystic fibrosis, pneumonia, interstitial lung diseases, idiopathic pulmonary diseases, other lung diseases including primary pulmonary hypertension, secondary pulmonary hypertension, lung cancer and pulmonary vascular thrombotic diseases such as pulmonary embolism or any inflammatory disease of the lungs.
- the term "sepsis” is used to describe the presence of various pus-forming and other pathogenic organisms or their toxins (generally, lipopolysaccharides or LPS bacterial cell walls) in the blood tissues. Sepsis will often result in oxidative stress in those tissues exposed to the pathogens or their toxins. Sepsis often manifests itself in the production of pro-inflammatory cytokines such as TNF- ⁇ , EL-1, IL-6 and MIP-1, the production of which is reduced or reversed by the administration of effective amounts of carbon monoxide.
- the present invention may be used to treat inflammation.
- inflammation is used to describe the fundamental pathological process consisting of a dynamic complex of cytologic and histologic reactions that occur in the affected blood vessels and adjacent tissues in response to an injury or abnormal stimulation caused by a physical, chemical or biologic agent, including the local reactions and resulting morphologic changes, the destruction or removal of the injurious material, and the responses that lead to repair and healing.
- the term includes various types of inflammation such as acute, allergic, alterative (degenerative), atrophic, catarrhal (most frequently in the respiratory tract), croupous, fibrinopurulent, fibrinous, immune, hypcrplastic or proliferative, subacute, serous and seiofibrinous.
- Inflammation localized in the liver, heart, skin e.g., dermatitis, inflammation due to bacterial, fungal, or viral infections and/or allergic or autoimmune reactions
- spleen e.g., brain, kidney (e.g., bacterial pyelonephritis, interstitial nephritis, and/or glomerulonephritis) and pulmonary tract, especially the lungs, and that associated with sepsis or septic shock is favorably treated by the methods according to the present invention.
- cancer is used as a general term to describe any of various types of malignant neoplasms, most of which invade surrounding tissues, may metastasize to several sites and are likely to recur after attempted removal and to cause death of the patient unless adequately treated.
- Cancers which may be treated using the present compositions and methods include, for example, stomach, colon, rectal, liver, pancreatic, lung, breast, cervix uteri, corpus uteri, ovary, prostate, testis, bladder, renal, brain/CNS, head and neck, throat, Hodgkins disease, non-Hodgkins leukemia, skin melanoma, various sarcomas, small cell lung cancer, choriocarcinoma, mouth/pharynx, oesophagus, larynx, melanoma, kidney and lymphoma, among others.
- the present invention can be used to treat conditions or disorders that involve the respiratory system, e.g., emphysema, bronchitis, cystic fibrosis, pneumonia, and interstitial lung disease.
- emphysema refers to a lung disease characterized by an enlargement of lung alveoli. In this condition, alveolar walls are destroyed, causing bronchioles to lose structural support and collapse during exhaling (see, e.g., The Merck Manual of Diagnosis and Therapy, 17 l Edition, Section 6, Chapter 68).
- bronchitis refers to a lung disease characterized by inflammation of the tracheobronchial tree.
- Bronchitis may develop after infections, e.g., viral infections, e.g., the common cold; or bacterial infections, or after exposure to an irritant (see, e.g., The Merck Manual of Diagnosis and Therapy, 17 th Edition, Section 6, Chapter 69).
- infections e.g., viral infections, e.g., the common cold; or bacterial infections
- an irritant see, e.g., The Merck Manual of Diagnosis and Therapy, 17 th Edition, Section 6, Chapter 69.
- the term "cystic fibrosis” refers to a genetic disease of the exocrine glands. The disease primarily affects the gastrointestinal tract and respiratory systems, and usually is characterized by chronic obstructive pulmonary disease (COPD) (see, e.g., Ebe Merck Manual of Diagnosis and Therapy, 17 l Edition, Section 19, Chapter 267).
- COPD chronic obstructive pulmonary disease
- pneumonia refers to a lung disease affecting the parenchyma, and includes, e.g., bacterial, viral, and aspiration pneumonia (see, e.g., The Merck Manual of Diagnosis and Therapy, 17 1 Edition, Section 6, Chapter 73).
- interstitial lung disease or "idiopathic interstitial lung disease” refer to a group of lung diseases of unknown etiology, which produce diffuse pathologic changes usually involving the interalveolar interstitial tissue (see, e.g., The Merck Manual of Diagnosis and Therapy, 17 th Edition, Section 6, Chapter 78).
- the term "arthritis” refers to a condition characterized by inflammation of the joints, and includes, for example, rheumatoid arthritis (RA) (a chronic inflammatory polyarthritis that often leads to destruction of the joints), psoriatic arthritis (inflammatory arthritis associated with psoriasis), ankylosing spondylitis (inflammation of the axial skeleton and large peripheral joints), and ankylosis (immobility or fusion of the joint) (see, e.g., The Merck Manual of Diagnosis and Therapy, 17 th Edition, Section 5, Chapter 50; Section 5, Chapter 51; Section 5, Chapter 51; and Section 9, Chapter 108, respectively).
- RA rheumatoid arthritis
- Parkinson's disease refers to "an idiopathic, slowly progressive, degenerative CNS disorder characterized by slow and decreased movement, muscular rigidity, resting tremor, and postural instability.” (The Merck Manual of Diagnosis and Therapy, 17 th Edition, Section 14, Chapter 179).
- the term “Alzheimer's disease” refers to a disease characterized by "a progressive, inexorable loss of cognitive function associated with an excessive number of senile plaques in the cerebral cortex and subcortical gray matter, which also contains b-amyloid and neurofibrillary tangles consisting of tau protein," (The Merck Manual of Diagnosis and Therapy, 17 l Edition, Section 14, Chapter 171).
- Low dosage CO may also be used in the present invention to induce HO-1 enzyme in patients and prevent or limit oxidative stress, especially oxidative stress caused by hyperoxia or sepsis. Induced HO-1 is implicated in maintaining homeostasis in the cells of the patient. Treatment of Organs and Tissues to Enhance Storage Stability.
- the present invention also relates to the use of CO as a preservative for storing organs or tissues to be used in transplants. It is an unexpected result that the inclusion of low dosage CO in the mediumin which organs to be transplanted are stored will substantially reduce the likelihood of oxidative damage to the organs during storage and substantially enhance the storage time that organs to be transplanted may be safely stored without suffering irreversible oxidative damage.
- an effective amount of CO is bubbled into storage medium cither before or preferably when an organ is first placed in the media or shortly thereafter.
- CO may also be used to enhance the storage stability of organs which have been stored for some time in media, but in those instances, oxidative damage may have become irreversible, thus limiting the intended effect.
- the present invention provides a method for enhancing the storage stability of an organ or tissue.
- the storage stability is enhanced by exposing the organ or tissue to liquid and/or gaseous carbon monoxide compositions.
- Exposure of an organ or tissue to gaseous carbon monoxide compositions can be performed in any chamber or area suitable for creating an atmosphere that includes appropriate levels of carbon monoxide gas.
- Such chambers include, for example, incubators, and chambers built for the purpose of accommodating an organ in a preservation solution.
- an appropriate chamber may be a chamber wherein only the gases fed into the chamber are present in the internal atmosphere, such that the concentration of carbon monoxide can be established and maintained at a given concentration and purity, e.g., where the chamber is airtight.
- a CO 2 incubator may be used to expose an organ to a carbon monoxide composition, wherein carbon monoxide gas is supplied in a continuous flow from a vessel that contains the gas.
- the exposure may be performed in any chamber or space having sufficient volume for submerging the organ or tissue, completely or partially, in the carbon monoxide composition.
- the organ may be exposed to a carbon monoxide composition by placing the organ in any suitable container, and causing the carbon monoxide composition to "wash over" the organ, such that the organ is exposed to a continuous flow of the carbon monoxide composition.
- the organ is perfused with a carbon monoxide composition.
- perfusion is an art recognized term, and relates to the passage of a liquid, e.g., a carbon monoxide composition, through the blood vessels of an organ or tissue.
- an organ can be perfused with a carbon monoxide composition ex vivo, for example, by continuous hypothermic machine perfusion (see Oxford Textbook of Surgery, Morris and Malt, Eds., Oxford University Press (1994)).
- the organ can be perfused with a wash solution, e.g., UW solution without carbon monoxide, prior to perfusion with the carbon monoxide composition to remove the donor's blood from the organ.
- a wash solution e.g., UW solution without carbon monoxide
- the wash solution can be a carbon monoxide composition.
- an appropriate liquid may be passed through tubing that allows gas diffusion, which runs through an atmosphere comprising carbon monoxide (e.g., through a chamber, such as with extracorporeal membrane oxygenation), to create a liquid carbon monoxide composition, which may then be passed into an organ (e.g., perfused into the organ by connecting the tubing to the organ).
- an atmosphere comprising carbon monoxide (e.g., through a chamber, such as with extracorporeal membrane oxygenation)
- an organ e.g., perfused into the organ by connecting the tubing to the organ).
- the organ may be placed, e.g., submerged, in a medium or solution that does not include carbon monoxide, and placed in a chamber such that the medium or solution can be made into a carbon monoxide composition via exposure to a carbon monoxide-containing atmosphere as described herein.
- the organ may be submerged in a liquid that does not include carbon monoxide, and carbon monoxide may be "bubbled" into the liquid.
- the present invention contemplates that any or all of the above methods for exposing an organ to a liquid carbon monoxide composition, e.g., washing, submerging, or perfusing, can be used in a given procedure, e.g., used in a single procedure for enhancing the storage stability of an organ or tissue.
- the measurement of CO may be a useful diagnostic tool, e.g., a biomarker, to determine whether a patient is in oxidative stress or has a condition or a disease state where CO may be implicated, e.g., sepsis or septic shock.
- a patient suspected of being in oxidative stress or at risk for oxidative stress is monitored to determine whether detectable levels of carbon monoxide may be measured in the exhaled breath of the patient.
- detectable levels of carbon monoxide are seen (i.e., an amount of carbon monoxide of at least about 0.01 ppm in the patient's breath)
- the attending physician or caregiver may then begin to administer therapeutic doses of carbon monoxide to treat oxidative stress or any one or more of the conditions or disease states which are secondary to or result in oxidative stress.
- a patient will have his or her exhaled breath analyzed for the presence of CO.
- CO content in a patient's breath is measured by a CO monitor (for example, using a Logan LR2000) which is sensitive to the detection of CO from 0 to about 1000 ppm (with a sensitivity as low as 1 ppb).
- the subjects exhale slowly from functional FVC into the breath analyzer with a constant flow (5-6 1/m) over a 20-30 second interval. Two successful recordings are made and mean values will be used for all calculations.
- Ambient CO levels are recorded before each breath in order to provide control or background values. While any elevation in CO levels from background numbers may implicate an actual or incipient state of oxidative stress, an amount of CO of at least about 1 ppm provides a clear indication that the patient is in or is about to suffer oxidative stress.
Abstract
Description
Claims
Priority Applications (13)
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MXPA04011113A MXPA04011113A (en) | 2002-05-09 | 2002-05-09 | Carbon monoxide as a biomarker and therapeutic agent. |
EP02807413A EP1501523A4 (en) | 2002-05-09 | 2002-05-09 | Carbon monoxide as a biomarker and therapeutic agent |
UA20041210106A UA84402C2 (en) | 2002-05-09 | 2002-05-09 | Use of carbon monoxide for treatment of nephritis |
CA002484770A CA2484770A1 (en) | 2002-05-09 | 2002-05-09 | Carbon monoxide as a biomarker and therapeutic agent |
PCT/US2002/014836 WO2003094932A1 (en) | 2002-05-09 | 2002-05-09 | Carbon monoxide as a biomarker and therapeutic agent |
AU2002308676A AU2002308676B2 (en) | 2002-05-09 | 2002-05-09 | Carbon monoxide as a biomarker and therapeutic agent |
BR0215717-9A BR0215717A (en) | 2002-05-09 | 2002-05-09 | Carbon monoxide as a biomarker and therapeutic agent |
CNA028292995A CN1638781A (en) | 2002-05-09 | 2002-05-09 | Carbon monoxide as a biomarker and therapeutic agent |
EA200401478A EA200401478A1 (en) | 2002-05-09 | 2002-05-09 | CARBON MONOXIDE AS A BIOMARKER AND MEDICINE |
YUP-969/04A RS96904A (en) | 2002-05-09 | 2002-05-09 | Carbon monoxide as a biomarker and therapeutic agent |
KR10-2004-7018082A KR20040106515A (en) | 2002-05-09 | 2002-05-09 | Carbon monoxide as a biomarker and therapeutic agent |
JP2004503016A JP2005532314A (en) | 2002-05-09 | 2002-05-09 | Carbon monoxide as a biomarker and therapeutic agent |
NO20044865A NO20044865L (en) | 2002-05-09 | 2004-11-09 | Carbon monoxide as a biomarker and therapeutic agent |
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JP (1) | JP2005532314A (en) |
KR (1) | KR20040106515A (en) |
CN (1) | CN1638781A (en) |
AU (1) | AU2002308676B2 (en) |
BR (1) | BR0215717A (en) |
CA (1) | CA2484770A1 (en) |
EA (1) | EA200401478A1 (en) |
MX (1) | MXPA04011113A (en) |
NO (1) | NO20044865L (en) |
RS (1) | RS96904A (en) |
UA (1) | UA84402C2 (en) |
WO (1) | WO2003094932A1 (en) |
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US7045140B2 (en) | 2001-05-15 | 2006-05-16 | Hemocorm Limited | Therapeutic delivery of carbon monoxide |
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US8927750B2 (en) | 2011-02-04 | 2015-01-06 | Universitaet Zu Koeln | Acyloxy- and phosphoryloxy-butadiene-Fe(CO)3 complexes as enzyme-triggered co-releasing molecules |
US9023402B2 (en) | 2002-02-04 | 2015-05-05 | ALFAMA—Investigação e Desenvolvimento de Produtos Farmacêuticos, Lda. | Method for treating a mammal by administration of a compound having the ability to release CO |
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- 2002-05-09 CN CNA028292995A patent/CN1638781A/en active Pending
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Also Published As
Publication number | Publication date |
---|---|
AU2002308676A1 (en) | 2003-11-11 |
NO20044865L (en) | 2004-12-07 |
UA84402C2 (en) | 2008-10-27 |
KR20040106515A (en) | 2004-12-17 |
EA200401478A1 (en) | 2005-12-29 |
MXPA04011113A (en) | 2005-02-14 |
EP1501523A4 (en) | 2006-12-13 |
BR0215717A (en) | 2005-02-22 |
CN1638781A (en) | 2005-07-13 |
JP2005532314A (en) | 2005-10-27 |
RS96904A (en) | 2007-02-05 |
AU2002308676B2 (en) | 2009-06-11 |
CA2484770A1 (en) | 2003-11-20 |
EP1501523A1 (en) | 2005-02-02 |
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