Patent Application
20160022718
This invention relates to methods of improving the cardiovascular and/or metabolic health of patients, particularly those suffering from type 2 diabetes, and to compounds and pharmaceutical compositions useful therein.
Type 2 diabetes mellitus (T2DM) is a disorder characterized by elevated serum glucose. One way of reducing serum glucose in patients suffering from the disease is by inhibiting glucose reabsorption in the kidney. The kidney plays an important role in the overall control of glucose, since glucose is filtered through the glomeruli at the rate of approximately 8 g/h and is almost completely reabsorbed in the proximal tubule via sodium-glucose cotransporters (SGLTs). Komoroski, B., et al., Clin Pharmacol Ther. 85(5):513-9 (2009). Sodium-glucose cotransporter 2 (SGLT2) is one of 14 transmembrane-domain SGLTs, and is responsible for reabsorbing most of the glucose filtered at the glomerulus. Thus, inhibition of SGLT2 is a rational approach to treating T2DM. Id.
A large number of SGLT2 inhibitors have been reported. See, e.g., U.S. Pat. Nos. 6,414,126; 6,555,519; and 7,393,836. One of them, dapagliflozin, has been administered to T2DM patients with promising results. In particular, patients randomized to the compound in a 14-day study exhibited reduced fasting plasma levels and improved glucose tolerance compared to placebo. Komoroski at 513. In a 12-week study, patients randomized to the compound exhibited an improvement in hemoglobin A1c, some weight loss, and some improvement in systolic blood pressure compared to placebo. List, J. F., et al., Diabetes Care. 32(4):650-7 (2009).
Most pharmaceutical efforts directed at discovering and developing inhibitors of SGLT2 “have focused on devising inhibitors selective for the SGLT2 transporter.” Washburn, W. N., Expert Opin. Ther. Patents 19(11):1485,1499, 1486 (2009). This is apparently based, at least in part, on the fact that while humans lacking a functional SGLT2 gene appear to live normal lives—apart from exhibiting high urinary glucose excretion—those bearing a SGLT1 gene mutation experience glucose-galactose malsorption. Id. Unlike SGLT2, which is expressed exclusively in the human kidney, SGLT1 is also expressed in the small intestine and heart. Id.
This invention is directed, in part, to a method of improving the cardiovascular and/or metabolic health of a patient, which comprises administering to a patient in need thereof a safe and efficacious amount of a dual inhibitor of sodium-glucose cotransporters 1 and 2 (“dual SGLT1/2 inhibitor”) that also has a structure of formula I:
or a pharmaceutically acceptable salt thereof, the various substituents of which are defined herein. In a particular embodiment, the patient is concurrently taking another therapeutic agent, such as an anti-diabetic agent, anti-hyperglycemic agent, hypolipidemic/lipid lowering agent, anti-obesity agent, anti-hypertensive agent, or appetite suppressant.
In one embodiment of the invention, the administration effects a decrease in the patient's plasma glucose. In one embodiment, the administration effects an improved oral glucose tolerance in the patient. In one embodiment, the administration lowers the patient's post-prandial plasma glucose level. In one embodiment, the administration lowers the patient's plasma fructosamine level. In one embodiment, the administration lowers the patient's HbA1c level. In one embodiment, the administration reduces the patient's blood pressure (e.g., systolic and diastolic). In one embodiment, the administration reduces the patient's triglyceride levels.
In a particular embodiment of the invention, the dual SGLT1/2 inhibitor is a compound of the formula:
or a pharmaceutically acceptable salt thereof, wherein: each R1A is independently hydrogen, alkyl, aryl or heterocycle; each R6 is independently hydrogen, hydroxyl, amino, alkyl, aryl, cyano, halogen, heteroalkyl, heterocycle, nitro, C≡CR6A, OR6A, SR6A, SOR6A, SO2R6A, C(O)R6A, CO2R6A, CO2H, CON(R6A)(R6A), CONH(R6A), CONH2, NHC(O)R6A, or NHSO2R6A; each R6A is independently alkyl, aryl or heterocycle; each R7 is independently hydrogen, hydroxyl, amino, alkyl, aryl, cyano, halogen, heteroalkyl, heterocycle, nitro, C≡CR7A, OR7A, SR7A, SOR7A, SO2R7A, C(O)R7A, CO2R7A, CO2H, CON(R7A)(R7A), CONH(R7A), CONH2, NHC(O)R7A, or NHSO2R7A; each R7A is independently alkyl, aryl or heterocycle; m is 1-4; n is 1-3; and p is 0-2; wherein each alkyl, aryl, heteroalkyl or heterocycle is optionally substituted with one or more of alkoxy, amino, cyano, halo, hydroxyl, or nitro.
In a particular embodiment, the safe and efficacious amount is 300 mg/day or less (e.g., 250, 200, 150, 100, or 50 mg/day or less). Particular patients are diabetic or pre-diabetic.
Certain aspects of this invention may be understood with reference to the figures, which provide results obtained from a randomized, double-blind, placebo controlled Phase 2a clinical trial, wherein 150 mg and 300 mg doses of a compound of the invention were orally administered once daily to patients with type 2 diabetes mellitus.
This invention is based, in part, on findings—provided herein—obtained from a randomized, double-blind, placebo controlled Phase 2a clinical trial, wherein 150 mg/day and 300 mg/day doses of a dual SGLT1/2 inhibitor were administered to patients with type 2 diabetes mellitus. The dual SGLT1/2 inhibitor was (2S,3R,4R,5S,6R)-2-(4-chloro-3-(4-ethoxybenzyl)phenyl)-6-(methylthio)tetrahydro-2H-pyran-3,4,5-triol, which has the structure:
The surprising nature of the clinical study findings—particularly as compared to results reported for selective SGLT2 inhibitors such as dapagliflozin—may be attributed to the compound's ability to inhibit both SGLT2 and SGLT1. Inhibition of SGLT1 has been linked to an increase in glucagon-like peptide-1 (GLP-1) levels. See, e.g., Moriya, R., et al., Am J Physiol Endocrinol Metab 297: E1358-E1365 (2009). Increased GLP-1 levels are known benefit diabetic patients, and a number of well-known diabetes drugs, including sitagliptin, vildagliptin, and saxagliptin, work by inhibiting the enzyme (DPP-4) responsible for GLP-1 degradation.
Unless otherwise indicated, the term “alkenyl” means a straight chain, branched and/or cyclic hydrocarbon having from 2 to 20 (e.g., 2 to 10 or 2 to 6) carbon atoms, and including at least one carbon-carbon double bond. Representative alkenyl moieties include vinyl, allyl, 1-butenyl, 2-butenyl, isobutylenyl, 1-pentenyl, 2-pentenyl, 3-methyl-1-butenyl, 2-methyl-2-butenyl, 2,3-dimethyl-2-butenyl, 1-hexenyl, 2-hexenyl, 3-hexenyl, 1-heptenyl, 2-heptenyl, 3-heptenyl, 1-octenyl, 2-octenyl, 3-octenyl, 1-nonenyl, 2-nonenyl, 3-nonenyl, 1-decenyl, 2-decenyl and 3-decenyl.
Unless otherwise indicated, the term “alkoxy” means an —O-alkyl group. Examples of alkoxy groups include, but are not limited to, —OCH3, —OCH2CH3, —O(CH2)2CH3, —O(CH2)3CH3, —O(CH2)4CH3, and —O(CH2)5CH3.
Unless otherwise indicated, the term “alkyl” means a straight chain, branched and/or cyclic (“cycloalkyl”) hydrocarbon having from 1 to 20 (e.g., 1 to 10 or 1 to 4) carbon atoms. Alkyl moieties having from 1 to 4 carbons are referred to as “lower alkyl.” Examples of alkyl groups include, but are not limited to, methyl, ethyl, propyl, isopropyl, n-butyl, t-butyl, isobutyl, pentyl, hexyl, isohexyl, heptyl, 4,4-dimethylpentyl, ° Ctyl, 2,2,4-trimethylpentyl, nonyl, decyl, undecyl and dodecyl. Cycloalkyl moieties may be monocyclic or multicyclic, and examples include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, and adamantyl. Additional examples of alkyl moieties have linear, branched and/or cyclic portions (e.g., 1-ethyl-4-methyl-cyclohexyl). The term “alkyl” includes saturated hydrocarbons as well as alkenyl and alkynyl moieties.
Unless otherwise indicated, the term “alkylaryl” or “alkyl-aryl” means an alkyl moiety bound to an aryl moiety.
Unless otherwise indicated, the term “alkylheteroaryl” or “alkyl-heteroaryl” means an alkyl moiety bound to a heteroaryl moiety.
Unless otherwise indicated, the term “alkylheterocycle” or “alkyl-heterocycle” means an alkyl moiety bound to a heterocycle moiety.
Unless otherwise indicated, the term “alkynyl” means a straight chain, branched or cyclic hydrocarbon having from 2 to 20 (e.g., 2 to 20 or 2 to 6) carbon atoms, and including at least one carbon-carbon triple bond. Representative alkynyl moieties include acetylenyl, propynyl, 1-butynyl, 2-butynyl, 1-pentynyl, 2-pentynyl, 3-methyl-1-butynyl, 4-pentynyl, 1-hexynyl, 2-hexynyl, 5-hexynyl, 1-heptynyl, 2-heptynyl, 6-heptynyl, 1-octynyl, 2-octynyl, 7-octynyl, 1-nonynyl, 2-nonynyl, 8-nonynyl, 1-decynyl, 2-decynyl and 9-decynyl.
Unless otherwise indicated, the term “aryl” means an aromatic ring or an aromatic or partially aromatic ring system composed of carbon and hydrogen atoms. An aryl moiety may comprise multiple rings bound or fused together. Examples of aryl moieties include, but are not limited to, anthracenyl, azulenyl, biphenyl, fluorenyl, indan, indenyl, naphthyl, phenanthrenyl, phenyl, 1,2,3,4-tetrahydro-naphthalene, and tolyl.
Unless otherwise indicated, the term “arylalkyl” or “aryl-alkyl” means an aryl moiety bound to an alkyl moiety.
Unless otherwise indicated, the term “dual SGLT1/2 inhibitor” refers to a compound having a ratio of SGLT1 IC50 to SGLT2 IC50 of less than about 75, 50, or 25.
Unless otherwise indicated, the terms “halogen” and “halo” encompass fluorine, chlorine, bromine, and iodine.
Unless otherwise indicated, the term “heteroalkyl” refers to an alkyl moiety (e.g., linear, branched or cyclic) in which at least one of its carbon atoms has been replaced with a heteroatom (e.g., N, O or S).
Unless otherwise indicated, the term “heteroaryl” means an aryl moiety wherein at least one of its carbon atoms has been replaced with a heteroatom (e.g., N, O or S). Examples include, but are not limited to, acridinyl, benzimidazolyl, benzofuranyl, benzoisothiazolyl, benzoisoxazolyl, benzoquinazolinyl, benzothiazolyl, benzoxazolyl, furyl, imidazolyl, indolyl, isothiazolyl, isoxazolyl, oxadiazolyl, oxazolyl, phthalazinyl, pyrazinyl, pyrazolyl, pyridazinyl, pyridyl, pyrimidinyl, pyrimidyl, pyrrolyl, quinazolinyl, quinolinyl, tetrazolyl, thiazolyl, and triazinyl.
Unless otherwise indicated, the term “heteroarylalkyl” or “heteroaryl-alkyl” means a heteroaryl moiety bound to an alkyl moiety.
Unless otherwise indicated, the term “heterocycle” refers to an aromatic, partially aromatic or non-aromatic monocyclic or polycyclic ring or ring system comprised of carbon, hydrogen and at least one heteroatom (e.g., N, O or S). A heterocycle may comprise multiple (i.e., two or more) rings fused or bound together. Heterocycles include heteroaryls. Examples include, but are not limited to, benzo[1,3]dioxolyl, 2,3-dihydro-benzo[1,4]dioxinyl, cinnolinyl, furanyl, hydantoinyl, morpholinyl, oxetanyl, oxiranyl, piperazinyl, piperidinyl, pyrrolidinonyl, pyrrolidinyl, tetrahydrofuranyl, tetrahydropyranyl, tetrahydropyridinyl, tetrahydropyrimidinyl, tetrahydrothiophenyl, tetrahydrothiopyranyl and valerolactamyl.
Unless otherwise indicated, the term “heterocyclealkyl” or “heterocycle-alkyl” refers to a heterocycle moiety bound to an alkyl moiety.
Unless otherwise indicated, the term “heterocycloalkyl” refers to a non-aromatic heterocycle.
Unless otherwise indicated, the term “heterocycloalkylalkyl” or “heterocycloalkyl-alkyl” refers to a heterocycloalkyl moiety bound to an alkyl moiety.
Unless otherwise indicated, the terms “manage,” “managing” and “management” encompass preventing the recurrence of the specified disease or disorder in a patient who has already suffered from the disease or disorder, and/or lengthening the time that a patient who has suffered from the disease or disorder remains in remission. The terms encompass modulating the threshold, development and/or duration of the disease or disorder, or changing the way that a patient responds to the disease or disorder.
Unless otherwise indicated, the term “pharmaceutically acceptable salts” refers to salts prepared from pharmaceutically acceptable non-toxic acids or bases including inorganic acids and bases and organic acids and bases. Suitable pharmaceutically acceptable base addition salts include, but are not limited to, metallic salts made from aluminum, calcium, lithium, magnesium, potassium, sodium and zinc or organic salts made from lysine, N,N′-dibenzylethylenediamine, chloroprocaine, choline, diethanolamine, ethylenediamine, meglumine (N-methylglucamine) and procaine. Suitable non-toxic acids include, but are not limited to, inorganic and organic acids such as acetic, alginic, anthranilic, benzenesulfonic, benzoic, camphorsulfonic, citric, ethenesulfonic, formic, fumaric, furoic, galacturonic, gluconic, glucuronic, glutamic, glycolic, hydrobromic, hydrochloric, isethionic, lactic, maleic, malic, mandelic, methanesulfonic, mucic, nitric, pamoic, pantothenic, phenylacetic, phosphoric, propionic, salicylic, stearic, succinic, sulfanilic, sulfuric, tartaric acid, and p-toluenesulfonic acid. Specific non-toxic acids include hydrochloric, hydrobromic, phosphoric, sulfuric, and methanesulfonic acids. Examples of specific salts thus include hydrochloride and mesylate salts. Others are well-known in the art. See, e.g., Remington's Pharmaceutical Sciences, 18th ed. (Mack Publishing, Easton Pa.: 1990) and Remington: The Science and Practice of Pharmacy, 19th ed. (Mack Publishing, Easton Pa.: 1995).
Unless otherwise indicated, the terms “prevent,” “preventing” and “prevention” contemplate an action that occurs before a patient begins to suffer from the specified disease or disorder, which inhibits or reduces the severity of the disease or disorder. In other words, the terms encompass prophylaxis.
Unless otherwise indicated, a “prophylactically effective amount” of a compound is an amount sufficient to prevent a disease or condition, or one or more symptoms associated with the disease or condition, or prevent its recurrence. A “prophylactically effective amount” of a compound means an amount of therapeutic agent, alone or in combination with other agents, which provides a prophylactic benefit in the prevention of the disease. The term “prophylactically effective amount” can encompass an amount that improves overall prophylaxis or enhances the prophylactic efficacy of another prophylactic agent.
Unless otherwise indicated, the term “SGLT1 IC50” is the IC50 of a compound determined using the in vitro human SGLT1 inhibition assay described in the Examples, below.
Unless otherwise indicated, the term “SGLT2 IC50” is the IC50 of a compound determined using the in vitro human SGLT2 inhibition assay described in the Examples, below.
Unless otherwise indicated, the term “substituted,” when used to describe a chemical structure or moiety, refers to a derivative of that structure or moiety wherein one or more of its hydrogen atoms is substituted with an atom, chemical moiety or functional group such as, but not limited to, alcohol, aldehyde, alkoxy, alkanoyloxy, alkoxycarbonyl, alkenyl, alkyl (e.g., methyl, ethyl, propyl, t-butyl), alkynyl, alkylcarbonyloxy (—OC(O)alkyl), amide (—C(O)NH-alkyl- or -alkylNHC(O)alkyl), amidinyl (—C(NH)NH-alkyl or —C(NR)NH2), amine (primary, secondary and tertiary such as alkylamino, arylamino, arylalkylamino), aroyl, aryl, aryloxy, azo, carbamoyl (—NHC(O)O— alkyl- or —OC(O)NH-alkyl), carbamyl (e.g., CONH2, as well as CONH-alkyl, CONH-aryl, and CONH-arylalkyl), carbonyl, carboxyl, carboxylic acid, carboxylic acid anhydride, carboxylic acid chloride, cyano, ester, epoxide, ether (e.g., methoxy, ethoxy), guanidino, halo, haloalkyl (e.g., —CCl3, —CF3, —C(CF3)3), heteroalkyl, hemiacetal, imine (primary and secondary), isocyanate, isothiocyanate, ketone, nitrile, nitro, oxygen (i.e., to provide an oxo group), phosphodiester, sulfide, sulfonamido (e.g., SO2NH2), sulfone, sulfonyl (including alkylsulfonyl, arylsulfonyl and arylalkylsulfonyl), sulfoxide, thiol (e.g., sulfhydryl, thioether) and urea (—NHCONH-alkyl-). In a particular embodiment, the term substituted refers to a derivative of that structure or moiety wherein one or more of its hydrogen atoms is substituted with alcohol, alkoxy, alkyl (e.g., methyl, ethyl, propyl, t-butyl), amide (—C(O)NH-alkyl- or -alkylNHC(O)alkyl), amidinyl (—C(NH)NH-alkyl or —C(NR)NH2), amine (primary, secondary and tertiary such as alkylamino, arylamino, arylalkylamino), aryl, carbamoyl (—NHC(O)O-alkyl- or —OC(O)NH-alkyl), carbamyl (e.g., CONH2, as well as CONH-alkyl, CONH-aryl, and CONH-arylalkyl), halo, haloalkyl (e.g., —CCl3, —CF3, —C(CF3)3), heteroalkyl, imine (primary and secondary), isocyanate, isothiocyanate, thiol (e.g., sulfhydryl, thioether) or urea (—NHCONH-alkyl-).
Unless otherwise indicated, a “therapeutically effective amount” of a compound is an amount sufficient to provide a therapeutic benefit in the treatment or management of a disease or condition, or to delay or minimize one or more symptoms associated with the disease or condition. A “therapeutically effective amount” of a compound means an amount of therapeutic agent, alone or in combination with other therapies, which provides a therapeutic benefit in the treatment or management of the disease or condition. The term “therapeutically effective amount” can encompass an amount that improves overall therapy, reduces or avoids symptoms or causes of a disease or condition, or enhances the therapeutic efficacy of another therapeutic agent.
Unless otherwise indicated, the terms “treat,” “treating” and “treatment” contemplate an action that occurs while a patient is suffering from the specified disease or disorder, which reduces the severity of the disease or disorder, or retards or slows the progression of the disease or disorder.
Unless otherwise indicated, the term “include” has the same meaning as “include, but are not limited to,” and the term “includes” has the same meaning as “includes, but is not limited to.” Similarly, the term “such as” has the same meaning as the term “such as, but not limited to.”
Unless otherwise indicated, one or more adjectives immediately preceding a series of nouns is to be construed as applying to each of the nouns. For example, the phrase “optionally substituted alky, aryl, or heteroaryl” has the same meaning as “optionally substituted alky, optionally substituted aryl, or optionally substituted heteroaryl.”
It should be noted that a chemical moiety that forms part of a larger compound may be described herein using a name commonly accorded it when it exists as a single molecule or a name commonly accorded its radical. For example, the terms “pyridine” and “pyridyl” are accorded the same meaning when used to describe a moiety attached to other chemical moieties. Thus, the two phrases “XOH, wherein X is pyridyl” and “XOH, wherein X is pyridine” are accorded the same meaning, and encompass the compounds pyridin-2-ol, pyridin-3-ol and pyridin-4-ol.
It should also be noted that if the stereochemistry of a structure or a portion of a structure is not indicated with, for example, bold or dashed lines, the structure or the portion of the structure is to be interpreted as encompassing all stereoisomers of it. Moreover, any atom shown in a drawing with unsatisfied valences is assumed to be attached to enough hydrogen atoms to satisfy the valences. In addition, chemical bonds depicted with one solid line parallel to one dashed line encompass both single and double (e.g., aromatic) bonds, if valences permit.
This invention is directed, in part, to compositions comprising and methods of using compounds of the formula:
and pharmaceutically acceptable salts thereof, wherein: A is optionally substituted aryl, cycloalkyl, or heterocycle; X is O, S or NR3; when X is O, R1 is OR1A, SR1A, SOR1A, SO2R1A or N(R1A)2; when X is S, R1 is hydrogen, OR1A, SR1A, SOR1A, or SO2R1A; when X is NR3, R1 is OR1A, SR1A, SOR1A, SO2R1A, or R1A; each R1A is independently hydrogen or optionally substituted alkyl, aryl or heterocycle; R2 is fluoro or OR2A; each of R2A, R2B, and R2C is independently hydrogen, optionally substituted alkyl, C(O)alkyl, C(O)aryl or aryl; R3 is hydrogen, C(O)R3A, CO2R3A, CON(R3B)2, or optionally substituted alkyl, aryl or heterocycle; each R3A is independently optionally substituted alkyl or aryl; and each R3B is independently hydrogen or optionally substituted alkyl or aryl. These compound can be prepared by methods known in the art. See, e.g., U.S. patent application publication nos. 20080113922 and 20080221164.
Particular compounds are of the formula:
Some are of the formula:
Some are of the formula:
One embodiment of the invention encompasses compounds of the formula:
and pharmaceutically acceptable salts thereof, wherein: A is optionally substituted aryl, cycloalkyl, or heterocycle; B is optionally substituted aryl, cycloalkyl, or heterocycle; X is O, S or NR3; Y is O, S, SO, SO2, NR4, (C(R5)2)p, (C(R5)2)q—C(O)—(C(R5)2)q, (C(R5)2)q—C(O)O—(C(R5)2)q, (C(R5)2)q—OC(O)—(C(R5)2)q, (C(R5)2)q—C(O)NR4—(C(R5)2)q, (C(R5)2)q—NR4C(O)—(C(R5)2)q, or (C(R5)2)q—NR4C(O)NR4—(C(R5)2)q; when X is O, R1 is OR1A, SR1A, SOR1A, SO2R1A or N(R1A)2; when X is S, R1 is hydrogen, OR1A, SR1A, SOR1A, or SO2R1A; when X is NR3, R1 is OR1A, SR1A, SOR1A, SO2R1A, or R1A; each R1A is independently hydrogen or optionally substituted alkyl, aryl or heterocycle; R2 is fluoro or OR2A; each of R2A, R2B, and R2C is independently hydrogen, optionally substituted alkyl, C(O)alkyl, C(O)aryl, or aryl; R3 is hydrogen, C(O)R3A, CO2R3A, CON(R3B)2, or optionally substituted alkyl, aryl or heterocycle; each R3A is independently optionally substituted alkyl or aryl; each R3B is independently hydrogen or optionally substituted alkyl or aryl; each R4 is independently hydrogen or optionally substituted alkyl; each R5 is independently hydrogen, hydroxyl, halogen, amino, cyano, OR5A, SR5A, or optionally substituted alkyl; each R5A is independently optionally substituted alkyl; p is 0-3; and each q is independently 0-2.
Particular compounds are of the formula:
Some are of the formula:
Some are of the formula:
Some are of the formula:
wherein: each R6 is independently hydrogen, hydroxyl, halogen, amino, cyano, nitro, C≡CR6A, OR6A, SR6A, SOR6A, SO2R6A, C(O)R6A, CO2R6A, CO2H, CON(R6A)(R6A), CONH(R6A), CONH2, NHC(O)R6A, NHSO2R6A, or optionally substituted alkyl, aryl or heterocycle; each R6A is independently optionally substituted alkyl, aryl or heterocycle; each R7 is independently hydrogen, hydroxyl, halogen, amino, cyano, nitro, C≡CR7A, OR7A, SR7A, SOR7A, SO2R7A, C(O)R7A, CO2R7A, CO2H, CON(R7A)(R7A), CONH(R7A), CONH2, NHC(O)R7A, NHSO2R7A, or optionally substituted alkyl, aryl or heterocycle; each R7A is independently optionally substituted alkyl, aryl or heterocycle; m is 1-3; and n is 1-3.
Some are of the formula:
Some are of the formula:
Some are of the formula:
One embodiment of the invention encompasses compounds of the formula:
and pharmaceutically acceptable salts thereof, wherein: A is optionally substituted aryl, cycloalkyl, or heterocycle; X is O or NR3; R2 is fluoro or OR2A; each of R2A, R2B, and R2C is independently hydrogen, optionally substituted alkyl, C(O)alkyl, C(O)aryl or aryl; R3 is hydrogen or optionally substituted alkyl, aryl or heterocycle; R8 is hydrogen or C(O)R8A; R8A is hydrogen or optionally substituted alkyl, alkoxy or aryl; R9A and R9B are each independently OR9C or SR9C, or are taken together to provide O, S or NR9C; and each R9C is independently optionally substituted alkyl, aryl or heterocycle.
With regard to the various formulae disclosed herein, as applicable, particular compounds of the invention are such that A is optionally substituted 6-membered aryl or heterocycle. In others, A is optionally substituted 5-membered heterocycle. In some, A is an optionally substituted fused bicyclic heterocycle.
In some, B is optionally substituted 6-membered aryl or heterocycle. In others, B is optionally substituted 5-membered heterocycle. In others, B is an optionally substituted fused bicyclic heterocycle.
In some, X is O. In others, X is S. In others, X is NR3.
In some, Y is (C(R4)2)p and, for example, p is 1. In some, Y is (C(R6)2)q—C(O)—(C(R6)2)q and, for example, each q is independently 0 or 1.
In some, R1 is OR1A. In others, R1 is SR1A. In others, R1 is SOR1A. In others, R1 is SO2R1A. In others, R1 is N(R1A)2. In others, R1 is hydrogen. In others, R1 is R1A.
In some, R1A is hydrogen. In others, R1A is optionally substituted alkyl (e.g., optionally substituted lower alkyl).
In some, R2 is fluoro. In others, R2 is OR2A.
In some, R2A is hydrogen.
In some, R2B is hydrogen.
In some, R2C is hydrogen.
In some, R3 is hydrogen. In others, R3 is optionally substituted lower alkyl (e.g., optionally substituted methyl).
In some, R4 is hydrogen or optionally substituted lower alkyl.
In some, each R5 is hydrogen or optionally substituted lower alkyl (e.g., methyl, ethyl, CF3).
In some, R6 is hydrogen, hydroxyl, halogen, OR6A or optionally substituted lower alkyl (e.g., optionally halogenated methyl, ethyl, or isopropyl). In some, R6 is hydrogen. In some, R6 is halogen (e.g., chloro). In some, R6 is hydroxyl. In some, R6 is OR6A (e.g., methoxy, ethoxy). In some, R6 is optionally substituted methyl (e.g., CF3).
In some, R7 is hydrogen, C≡CR7A, OR7A or optionally substituted lower alkyl (e.g., optionally halogenated methyl, ethyl, or isopropyl). In some, R7 is hydrogen. In some, R7 is C≡CR7A and R7A is, for example, optionally substituted (e.g., with lower alkyl or halogen) monocyclic aryl or heterocycle. In some, R7 is OR7A (e.g., methoxy, ethoxy). In some, R7 is acetylenyl or optionally substituted methyl or ethyl.
Particular compounds of the invention are of the formula:
Others are of the formula:
Others are of the formula:
Others are of the formula:
Others are of the formula:
Others are of the formula:
In particular compounds of formulae I(a)-(d), X is O. In others, X is S. In others, X is NR3 and R3 is, for example, hydrogen. In particular compounds of formulae I(a)-(f), R1A is hydrogen. In others, R1A is optionally substituted methyl or ethyl.
Specific compounds of the invention include:
This invention encompasses methods improving the cardiovascular and/or metabolic health of a patient, which comprise administering to a patient in need thereof a safe and efficacious amount of a dual SGLT1/2 inhibitor of the invention (i.e. a compound disclosed in Section 5.2 above that is also a dual SGLT1/2 inhibitor).
Patients in need of such improvement include those suffering from diseases or disorders such as atherosclerosis, cardiovascular disease, diabetes (Type 1 and 2), disorders associated with hemoconcentration (e.g., hemochromatosis, polycythemia vera), hyperglycaemia, hypertension, hypomagnesemia, hyponatremia, lipid disorders, obesity, renal failure (e.g., stage 1, 2, or 3 renal failure), and Syndrome X. Particular patients suffer from, or are at risk of suffering from, type 2 diabetes mellitus.
In one embodiment of the invention, the administration effects a decrease in the patient's fasting plasma glucose level (e.g., by greater than about 50, 55, or 60 mg/dl). In one embodiment, the administration effects an improved oral glucose tolerance in the patient. In one embodiment, the administration lowers the patient's post-prandial plasma glucose level. In one embodiment, the administration lowers the patient's plasma fructosamine level (e.g., by greater than about 30, 40, or 50 μmol/l). In one embodiment, the administration lowers the patient's HbA1c level (e.g., by greater than about 1.0, 1.1, or 1.2 percent) after four weeks of treatment. In one embodiment, the administration reduces the patient's blood pressure (e.g., systolic and diastolic). In one embodiment, the administration reduces the patient's triglyceride levels.
In a particular embodiment, the patient is concurrently taking another therapeutic agent. Other therapeutic agents include known therapeutic agents useful in the treatment of the aforementioned disorders including: anti-diabetic agents; anti-hyperglycemic agents; hypolipidemic/lipid lowering agents; anti-obesity agents; anti-hypertensive agents and appetite suppressants.
Examples of suitable anti-diabetic agents include biguanides (e.g., metformin, phenformin), glucosidase inhibitors (e.g., acarbose, miglitol), insulins (including insulin secretagogues and insulin sensitizers), meglitinides (e.g., repaglinide), sulfonylureas (e.g., glimepiride, glyburide, gliclazide, chlorpropamide, and glipizide), biguanide/glyburide combinations (e.g., Glucovance), thiazolidinediones (e.g., troglitazone, rosiglitazone, and pioglitazone), PPAR-alpha agonists, PPAR-gamma agonists, PPAR alpha/gamma dual agonists, glycogen phosphorylase inhibitors, inhibitors of fatty acid binding protein (aP2), glucagon-like peptide-1 (GLP-1) or other agonists of the GLP-1 receptor, and dipeptidyl peptidase IV (DPP4) inhibitors.
Examples of meglitinides include nateglinide (Novartis) and KAD1229 (PF/Kissei).
Examples of thiazolidinediones include Mitsubishi's MCC-555 (disclosed in U.S. Pat. No. 5,594,016), Glaxo-Welcome's GL-262570, englitazone (CP-68722, Pfizer), darglitazone (CP-86325, Pfizer, isaglitazone (MIT/J&J), JTT-501 (JPNT/P&U), L-895645 (Merck), R-119702 (Sankyo/WL), NN-2344 (Dr. Reddy/NN), or YM-440 (Yamanouchi).
Examples of PPAR-alpha agonists, PPAR-gamma agonists and PPAR alpha/gamma dual agonists include muraglitizar, peliglitazar, AR-HO39242 (Astra/Zeneca), GW-409544 (Glaxo-Wellcome), GW-501516 (Glaxo-Wellcome), KRP297 (Kyorin Merck) as well as those disclosed by Murakami et al, Diabetes 47, 1841-1847 (1998), WO 01/21602 and in U.S. Pat. No. 6,653,314.
Examples of aP2 inhibitors include those disclosed in U.S. application Ser. No. 09/391,053, filed Sep. 7, 1999, and in U.S. application Ser. No. 09/519,079, filed Mar. 6, 2000, employing dosages as set out herein.
Examples of DPP4 inhibitors include sitagliptin (Janiuvia®, Merck), vildagliptin (Galvus®, Novartis), saxagliptin (Onglyza®, BMS-477118), linagliptin (BI-1356), dutogliptin (PHX1149T), gemigliptin (LG Life Sciences), alogliptin (SYR-322, Takeda), those disclosed in WO99/38501, WO99/46272, WO99/67279 (PROBIODRUG), WO99/67278 (PROBIODRUG), and WO99/61431 (PROBIODRUG), NVP-DPP728A (1-[[[2-[(5-cyanopyridin-2-yl)amino]ethyl]amino]acetyl]-2-cyano-(S)-pyrro-lidine) (Novartis) as disclosed by Hughes et al, Biochemistry, 38(36), 11597-11603, 1999, TSL-225 (tryptophyl-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (disclosed by Yamada et al, Bioorg. & Med. Chem. Lett. 8 (1998) 1537-1540), 2-cyanopyrrolidides and 4-cyanopyrrolidides, as disclosed by Ashworth et al, Bioorg. & Med. Chem. Lett., Vol. 6, No. 22, pp 1163-1166 and 2745-2748 (1996), the compounds disclosed in U.S. application Ser. No. 10/899,641, WO 01/868603 and U.S. Pat. No. 6,395,767, employing dosages as set out in the above references.
Examples of anti-hyperglycemic agents include glucagon-like peptide-1 (GLP-1), GLP-1 (1-36) amide, GLP-1(7-36) amide, GLP-1(7-37) (as disclosed in U.S. Pat. No. 5,614,492), exenatide (Amylin/Lilly), LY-315902 (Lilly), liraglutide (NovoNordisk), ZP-10 (Zealand Pharmaceuticals A/S), CJC-1131 (Conjuchem Inc), and the compounds disclosed in WO 03/033671.
Examples of hypolipidemic/lipid lowering agents include MTP inhibitors, HMG CoA reductase inhibitors, squalene synthetase inhibitors, fibric acid derivatives, ACAT inhibitors, lipoxygenase inhibitors, cholesterol absorption inhibitors, Na+/bile acid co-transporter inhibitors, up-regulators of LDL receptor activity, bile acid sequestrants, cholesterol ester transfer protein (e.g., CETP inhibitors, such as CP-529414 (Pfizer) and JTT-705 (Akros Pharma)), and nicotinic acid and derivatives thereof.
Examples of MTP inhibitors include those disclosed in U.S. Pat. No. 5,595,872, U.S. Pat. No. 5,739,135, U.S. Pat. No. 5,712,279, U.S. Pat. No. 5,760,246, U.S. Pat. No. 5,827,875, U.S. Pat. No. 5,885,983 and U.S. Pat. No. 5,962,440.
Examples of HMG CoA reductase inhibitors include mevastatin and related compounds, as disclosed in U.S. Pat. No. 3,983,140, lovastatin (mevinolin) and related compounds, as disclosed in U.S. Pat. No. 4,231,938, pravastatin and related compounds, such as disclosed in U.S. Pat. No. 4,346,227, simvastatin and related compounds, as disclosed in U.S. Pat. Nos. 4,448,784 and 4,450,171. Other HMG CoA reductase inhibitors which may be employed herein include, but are not limited to, fluvastatin, disclosed in U.S. Pat. No. 5,354,772, cerivastatin, as disclosed in U.S. Pat. Nos. 5,006,530 and 5,177,080, atorvastatin, as disclosed in U.S. Pat. Nos. 4,681,893, 5,273,995, 5,385,929 and 5,686,104, atavastatin (Nissan/Sankyo's nisvastatin (NK-104)), as disclosed in U.S. Pat. No. 5,011,930, visastatin (Shionogi-Astra/Zeneca (ZD-4522)), as disclosed in U.S. Pat. No. 5,260,440, and related statin compounds disclosed in U.S. Pat. No. 5,753,675, pyrazole analogs of mevalonolactone derivatives, as disclosed in U.S. Pat. No. 4,613,610, indene analogs of mevalonolactone derivatives, as disclosed in PCT application WO 86/03488, 6-[2-(substituted-pyrrol-1-yl)-alkyl)pyran-2-ones and derivatives thereof, as disclosed in U.S. Pat. No. 4,647,576, Searle's SC-45355 (a 3-substituted pentanedioic acid derivative) dichloroacetate, imidazole analogs of mevalonolactone, as disclosed in PCT application WO 86/07054, 3-carboxy-2-hydroxy-propane-phosphonic acid derivatives, as disclosed in French Patent No. 2,596,393, 2,3-disubstituted pyrrole, furan and thiophene derivatives, as disclosed in European Patent Application No. 0221025, naphthyl analogs of mevalonolactone, as disclosed in U.S. Pat. No. 4,686,237, octahydronaphthalenes, such as disclosed in U.S. Pat. No. 4,499,289, keto analogs of mevinolin (lovastatin), as disclosed in European Patent Application No. 0142146 A2, and quinoline and pyridine derivatives, as disclosed in U.S. Pat. Nos. 5,506,219 and 5,691,322.
Examples of hypolipidemic agents include pravastatin, lovastatin, simvastatin, atorvastatin, fluvastatin, cerivastatin, atavastatin, and ZD-4522.
Examples of phosphinic acid compounds useful in inhibiting HMG CoA reductase include those disclosed in GB 2205837.
Examples of squalene synthetase inhibitors include α-phosphono-sulfonates disclosed in U.S. Pat. No. 5,712,396, those disclosed by Biller et al., J. Med. Chem. 1988, Vol. 31, No. 10, pp 1869-1871, including isoprenoid (phosphinyl-methyl)phosphonates, as well as other known squalene synthetase inhibitors, for example, as disclosed in U.S. Pat. Nos. 4,871,721 and 4,924,024 and in Biller, S. A., et al., Current Pharmaceutical Design, 2, 1-40 (1996).
Examples of additional squalene synthetase inhibitors suitable for use herein include the terpenoid pyrophosphates disclosed by P. Ortiz de Montellano et al., J. Med. Chem., 1977, 20, 243-249, the farnesyl diphosphate analog A and presqualene pyrophosphate (PSQ-PP) analogs as disclosed by Corey and Volante, J. Am. Chem. Soc. 1976, 98, 1291-1293, phosphinylphosphonates reported by McClard, R. W. et al., J.A.C.S., 1987, 109, 5544 and cyclopropanes reported by Capson, T. L., PhD dissertation, June, 1987, Dept. Med. Chem. U of Utah, Abstract, Table of Contents, pp 16, 17, 40-43, 48-51, Summary.
Examples of fibric acid derivatives which may be employed in combination the compounds of this invention include fenofibrate, gemfibrozil, clofibrate, bezafibrate, ciprofibrate, clinofibrate and the like, probucol, and related compounds, as disclosed in U.S. Pat. No. 3,674,836, probucol and gemfibrozil being preferred, bile acid sequestrants, such as cholestyramine, colestipol and DEAE-Sephadex (Secholex, Policexide), as well as lipostabil (Rhone-Poulenc), Eisai E-5050 (an N-substituted ethanolamine derivative), imanixil (HOE-402), tetrahydrolipstatin (THL), istigmastanylphos-phorylcholine (SPC, Roche), aminocyclodextrin (Tanabe Seiyoku), Ajinomoto AJ-814 (azulene derivative), melinamide (Sumitomo), Sandoz 58-035, American Cyanamid CL-277,082 and CL-283,546 (disubstituted urea derivatives), nicotinic acid, acipimox, acifran, neomycin, p-aminosalicylic acid, aspirin, poly(diallylmethylamine) derivatives, such as disclosed in U.S. Pat. No. 4,759,923, quaternary amine poly(diallyldimethylammonium chloride) and ionenes, such as disclosed in U.S. Pat. No. 4,027,009, and other known serum cholesterol lowering agents.
Examples of ACAT inhibitor that may be employed in combination compounds of this invention include those disclosed in Drugs of the Future 24, 9-15 (1999), (Avasimibe); Nicolosi et al., Atherosclerosis (Shannon, Irel). (1998), 137(1), 77-85; Ghiselli, Giancarlo, Cardiovasc. Drug Rev. (1998), 16(1), 16-30; Smith, C., et al., Bioorg. Med. Chem. Lett. (1996), 6(1), 47-50; Krause et al., Editor(s): Ruffolo, Robert R., Jr.; Hollinger, Mannfred A., Inflammation: Mediators Pathways (1995), 173-98, Publisher: CRC, Boca Raton, Fla.; Sliskovic et al., Curr. Med. Chem. (1994), 1(3), 204-25; Stout et al., Chemtracts: Org. Chem. (1995), 8(6), 359-62, or TS-962 (Taisho Pharmaceutical Co. Ltd).
Examples of hypolipidemic agents include up-regulators of LD2 receptor activity, such as MD-700 (Taisho Pharmaceutical Co. Ltd) and LY295427 (Eli Lilly).
Examples of cholesterol absorption inhibitors include SCH48461 (Schering-Plough), as well as those disclosed in Atherosclerosis 115, 45-63 (1995) and J. Med. Chem. 41, 973 (1998).
Examples of ileal N+/bile acid co-transporter inhibitors include compounds as disclosed in Drugs of the Future, 24, 425-430 (1999).
Examples of lipoxygenase inhibitors include 15-lipoxygenase (15-LO) inhibitors, such as benzimidazole derivatives, as disclosed in WO 97/12615, 15-LO inhibitors, as disclosed in WO 97/12613, isothiazolones, as disclosed in WO 96/38144, and 15-LO inhibitors, as disclosed by Sendobry et al., Brit. J. Pharmacology (1997) 120, 1199-1206, and Cornicelli et al., Current Pharmaceutical Design, 1999, 5, 11-20.
Examples of suitable anti-hypertensive agents for use in combination with compounds of this invention include beta adrenergic blockers, calcium channel blockers (L-type and T-type; e.g., diltiazem, verapamil, nifedipine, amlodipine and mybefradil), diuretics (e.g., chlorothiazide, hydrochlorothiazide, flumethiazide, hydroflumethiazide, bendroflumethiazide, methylchlorothiazide, trichloromethiazide, polythiazide, benzthiazide, ethacrynic acid tricrynafen, chlorthalidone, furosemide, musolimine, bumetamide, triamtrenene, amiloride, spironolactone), renin inhibitors, ACE inhibitors (e.g., captopril, zofenopril, fosinopril, enalapril, ceranopril, cilazopril, delapril, pentopril, quinapril, ramipril, lisinopril), AT-1 receptor antagonists (e.g., losartan, irbesartan, valsartan), ET receptor antagonists (e.g., sitaxsentan, atrsentan and compounds disclosed in U.S. Pat. Nos. 5,612,359 and 6,043,265), Dual ET/All antagonist (e.g., compounds disclosed in WO 00/01389), neutral endopeptidase (NEP) inhibitors, vasopepsidase inhibitors (dual NEP-ACE inhibitors) (e.g., omapatrilat and gemopatrilat), and nitrates.
Examples anti-obesity agents include beta 3 adrenergic agonists, a lipase inhibitors, serotonin (and dopamine) reuptake inhibitors, thyroid receptor beta drugs, 5HT2C agonists, (such as Arena APD-356); MCHR1 antagonists such as Synaptic SNAP-7941 and Takeda T-226926, melanocortin receptor (MC4R) agonists, melanin-concentrating hormone receptor (MCHR) antagonists (such as Synaptic SNAP-7941 and Takeda T-226926), galanin receptor modulators, orexin antagonists, CCK agonists, NPY1 or NPY5 antagonsist, NPY2 and NPY4 modulators, corticotropin releasing factor agonists, histamine receptor-3 (H3) modulators, 11-beta-HSD-1 inhibitors, adinopectin receptor modulators, monoamine reuptake inhibitors or releasing agents, a ciliary neurotrophic factor (CNTF, such as AXOKINE by Regeneron), BDNF (brain-derived neurotrophic factor), leptin and leptin receptor modulators, cannabinoid-1 receptor antagonists (such as SR-141716 (Sanofi) or SLV-319 (Solvay)), and/or an anorectic agent.
Examples of beta 3 adrenergic agonists include AJ9677 (Takeda/Dainippon), L750355 (Merck), or CP331648 (Pfizer) or other known beta 3 agonists, as disclosed in U.S. Pat. Nos. 5,541,204, 5,770,615, 5,491,134, 5,776,983 and 5,488,064.
Examples of lipase inhibitors include orlistat and ATL-962 (Alizyme).
Examples of serotonin (and dopoamine) reuptake inhibitors (or serotonin receptor agonists) include BVT-933 (Biovitrum), sibutramine, topiramate (Johnson & Johnson) and axokine (Regeneron).
Examples of thyroid receptor beta compounds include thyroid receptor ligands, such as those disclosed in WO97/21993 (U. Cal SF), WO99/00353 (KaroBio) and GB98/284425 (KaroBio).
Examples of monoamine reuptake inhibitors include fenfluramine, dexfenfluramine, fluvoxamine, fluoxetine, paroxetine, sertraline, chlorphentermine, cloforex, clortermine, picilorex, sibutramine, dexamphetamine, phentermine, phenylpropanolamine and mazindol.
Examples of anorectic agents include dexamphetamine, phentermine, phenylpropanolamine, and mazindol.
This invention encompasses pharmaceutical compositions comprising one or more dual SGLT1/2 inhibitor of the invention, optionally in combination with one or more second active ingredients, such as those described above in Section 5.3.
Certain pharmaceutical compositions are single unit dosage forms suitable for oral administration to a patient. Discrete dosage forms suitable for oral administration include tablets (e.g., chewable tablets), caplets, capsules, and liquids (e.g., flavored syrups). Such dosage forms contain predetermined amounts of active ingredients, and may be prepared by methods of pharmacy well known to those skilled in the art. See, e.g., Remington's Pharmaceutical Sciences, 18th ed. (Mack Publishing, Easton Pa.: 1990).
Typical oral dosage forms are prepared by combining the active ingredient(s) in an intimate admixture with at least one excipient according to conventional pharmaceutical compounding techniques. Because of their ease of administration, tablets and capsules represent the most advantageous oral dosage unit forms. If desired, tablets can be coated by standard aqueous or nonaqueous techniques. Such dosage forms can be prepared by conventional methods of pharmacy. In general, pharmaceutical compositions and dosage forms are prepared by uniformly and intimately admixing the active ingredients with liquid carriers, finely divided solid carriers, or both, and then shaping the product into the desired presentation if necessary. Disintegrants may be incorporated in solid dosage forms to facility rapid dissolution. Lubricants may also be incorporated to facilitate the manufacture of dosage forms (e.g., tablets).
Human sodium/glucose co-transporter type 2 (SGLT2; accession number P31639; GI:400337) was cloned into pIRESpuro2 vector for mammalian expression (construct: HA-SGLT2-pIRESpuro2).
HEK293 cells were transfected with the human HA-SGLT2-pIRESpuro2 vector and the bulk stable cell line was selected in presence of 0.5 μg/ml of puromycin. Human HA-SGLT2 cells were maintained in DMEM media containing 10% FBS, 1% GPS and 0.5 μg/ml of puromycin.
The HEK293 cells expressing the human HA-SGLT2 were seeded in 384 well plates (30,000 cells/well) in DMEM media containing 10% FBS, 1% GPS and 0.5 μg/ml of puromycin, then incubated overnight at 37 C, 5% CO2. Cells were then washed with uptake buffer (140 mM NaCl, 2 mM KCl, 1 mM CaCl2, 1 mM MgCl2, 10 mM HEPES, 5 mM Tris, 1 mg/ml bovine serum albumin (BSA), pH 7.3). Twenty microliters of uptake buffer with or without testing compounds were added to the cells. Then, 20 microliters of uptake buffer containing 14C-AMG (100 nCi) were added to the cells. The cell plates were incubated at 37° C., 5% CO2 for 1-2 hours. After washing the cells with uptake buffer, scintillation fluid was added (40 microliters/well) and 14C-AMG uptake was measured by counting radioactivity using a scintillation coulter (TopCoulter NXT; Packard Instruments).
Human sodium/glucose co-transporter type 1 (SGLT1; accession number NP—000334; GI: 4507031) was cloned into pIRESpuro2 vector for mammalian expression (construct: HA-SGLT1-pIRESpuro2).
HEK293 cells were transfected with the human HA-SGLT1-pIRESpuro2 vector and the bulk stable cell line was selected in presence of 0.5 μg/ml of puromycin. Human HA-SGLT1 cells were maintained in DMEM media containing 10% FBS, 1% GPS and 0.5 μg/ml of puromycin.
The HEK293 cells expressing the human HA-SGLT1 were seeded in 384 well plates (30,000 cells/well) in DMEM media containing 10% FBS, 1% GPS and 0.5 μg/ml of puromycin, then incubated overnight at 37 C, 5% CO2. Cells were then washed with uptake buffer (140 mM NaCl, 2 mM KCl, 1 mM CaCl2, 1 mM MgCl2, 10 mM HEPES, 5 mM Tris, 1 mg/ml bovine serum albumin (BSA), pH 7.3). Twenty microliters of uptake buffer with or without testing compounds were added to the cells. Then, 20 microliters of uptake buffer containing 14C-AMG (100 nCi) were also added to cells. The cell plates were incubated at 37° C., 5% CO2 for 1-2 hours. After washing the cells with uptake buffer, scintillation fluid was added (40 microliters/well) and 14C-AMG uptake was measured by counting radioactivity using a scintillation coulter (TopCoulter NXT; Packard Instruments).
Patients (n=36) with type 2 diabetes mellitus received one of two oral doses of (2S,3R,4R,5S,6R)-2-(4-chloro-3-(4-ethoxybenzyl)phenyl)-6-(methylthio)tetrahydro-2H-pyran-3,4,5-triol, given as 150 mg or 300 mg once daily, or matching placebo, for 28 days. Preliminary data showed significant and sustained glucosuria over the 28-day dosing period for both dose levels when compared to placebo. Adverse events were generally mild and evenly distributed across all dose groups, including placebo, and no evidence of dose-limiting toxicities was observed.
In this study, patients on metformin were taken off of the drug 16 days prior to day 0, the day dosing first began. As shown in
Over the course of the study, the patients' glucose tolerance was tested in a conventional manner. As shown in
As shown in
As shown in
Fructosamine (glycated albumin) is often measured to assess the short-term control of blood sugar.
Surprisingly, patients in the 150 mg/day and 300 mg/day treatment groups also exhibited decreased mean diastolic and systolic blood pressures after 28 days of dosing compared to placebo. See
As shown below in Table 1, it was found that administration of the compound also lowered patients' serum triglyceride levels and effected weight loss:
These results demonstrate that within a four-week treatment period, patients receiving the compound exhibited improvements in blood pressure control, weight reduction, and triglyceride levels that were associated with improvements in glycemic parameters.
All publications (e.g., patents and patent applications) cited above are incorporated herein by reference in their entireties.
This application is a continuation of U.S. patent application Ser. No. 13/913,928, filed Jun. 10, 2013, which is a continuation of U.S. patent application Ser. No. 13/037,490, filed Mar. 1, 2011, which claims priority to U.S. provisional patent application No. 61/309,592, filed Mar. 2, 2010, the entireties of which are incorporated herein by reference.
| Number | Date | Country | |
|---|---|---|---|
| 61309592 | Mar 2010 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 13913928 | Jun 2013 | US |
| Child | 14875903 | US | |
| Parent | 13037490 | Mar 2011 | US |
| Child | 13913928 | US |
