Technical field
[0001] The present invention relates to a combination of a statin and a nicotinamide derivative
that can be used in therapy, in particular for treating dyslipidemia or atherosclerosis.
Background of the Invention
[0002] It has been clear for several decades that high total cholesterol, high triglyceride,
low high-density lipoprotein cholesterol, normal to elevated low-density lipoprotein
cholesterol, or small low-density lipoprotein particles are related to a variety of
diseases, conditions and disorders.
[0003] The evidence linking elevated serum cholesterol to coronary heart disease is overwhelming.
(
Badimon et at, Circulation, 86 Suppl. Ill, 1992, 86-94). Circulating cholesterol is carried by plasma lipoproteins, which are complex particles
of lipid and protein that transport lipids in the blood. Low density lipoprotein (LDL)
and high density lipoprotein (HDL) are the major cholesterol-carrier proteins. LDL
is believed to be responsible for the delivery of cholesterol from the liver, where
it is synthesized or obtained from dietary sources, to extrahepatic tissues in the
body. The term "reverse cholesterol transport" describes the transport of cholesterol
from extrahepatic tissues to the liver, where it is catabolized and eliminated. It
is believed that plasma HDL particles play a major role in the reverse transport process,
acting as scavengers of tissue cholesterol. Id. HDL is also responsible for the removal
non- cholesterol lipid, oxidized cholesterol and other oxidized products from the
bloodstream. Atherosclerosis, for example, is a slowly progressive disease, characterized
by the accumulation of cholesterol within the arterial wall. Compelling evidence supports
the belief that lipids deposited in atherosclerotic lesions are derived primarily
from plasma apolipoprotein B (apo B)-containing lipoproteins, which include chylomicrons,
CLDL, IDL and LDL. See
Badimon et al, 1992, Circulation 86:(Suppl. 111)86-94. The apoB-containing lipoprotein, and in particular LDL, has popularly become known
as the "bad" cholesterol. In contrast, HDL serum levels correlate inversely with coronary
heart disease. Indeed, high serum levels of HDL is regarded as a negative risk factor.
It is hypothesized that a high level of plasma HDL is not only protective against
coronary artery disease, but may actually induce regression of atherosclerotic plaque.
See
Dansky and Fisher, 1999, Circulation 100: 1762-3. Thus, HDL has popularly become known as the "good" cholesterol.
[0004] Further, dyslipidemia is caused by various factors including, but not limited to,
high total cholesterol, high triglycerides, low high-density lipoprotein cholesterol,
normal to elevated low-density lipoprotein cholesterol, or small low-density lipoprotein
particles.
[0005] US-A-5,260,305 and
WO99/06046 disclose that nicotinic acid or related acid derivatives thereof can be used together
with statins for treating hyperlipidemia, reducing serum cholesterol level, and inhibiting
or treating atherosclerosis.
[0006] Thus, there is a continued need to find new therapeutic agents to treat dyslipidemia.
Accordingly, there is a great need to develop compounds and pharmaceutical compositions
that will raise HDL levels, lower LDL levels, and/or lower triglyceride levels in
a subject.
Summary of the invention
[0007] Accordingly, in one aspect, the invention provides a pharmaceutical composition comprising
a statin and a 1-methylnicotinamide salt of Formula 1:

wherein R represents NH
2; R
1 represents methyl; and X
- is a physiologically suitable counter-anion.
[0008] In particular, the salt is chloride, benzoate, salicylate, acetate, citrate or lactate.
[0009] Preferably, the salt of Formula I is 1-methylnicotinamide chloride, 1-methylnicotinamide
citrate or 1-methylnicotinamide lactate.
[0010] In one embodiment, the statin is mevastatin, lovastatin, simvastatin, pravastatin,
fluvastatin, pitavastatin, atorvastatin, cerivastatin, rosuvastatin, or pentostatin,
or a pharmaceutically acceptable salt, solvate, clathrate, polymorph, prodrug, or
pharmacologically active metabolite thereof.
[0011] In another aspect, the invention provides a combination comprising a statin and a
1-methylnicotinamide salt of Formula I as defined above for use in therapy.
[0012] In another aspect, the invention provides a use of a combination comprising a statin
and a 1-methylnicotinamide salt of Formula I as defined above for preparing a pharmaceutical
composition for treating dyslipidemia or atherosclerosis.
[0013] In another aspect, the invention provides a combination comprising a statin and a
1-methylnicotinamide salt of Formula I as defined above for use in the treatment of
dyslipidemia or atherosclerosis.
[0014] In an embodiment, the statin and the salt of Formula I are co-administered to the
subject. In another embodiment, the statin and the salt of Formula I are administered
sequentially to the subject. In another embodiment, the statin and the salt of Formula
I are administered orally, nasally, rectally, intravaginally, parenterally, buccally,
sublingually or topically.
[0015] In another embodiment, the statin and the salt of Formula I are formulated using
one or more pharmaceutically acceptable excipients chosen from starch, sugar, cellulose,
diluent, granulating agent, lubricant, binder, disintegrating agent, wetting agent,
emulsifier, coloring agent, release agent, coating agent, sweetening agent, flavoring
agent, perfuming agent, preservative, antioxidant, plasticizer, gelling agent, thickener,
hardener, setting agent, suspending agent, surfactant, humectant, carrier, stabilizer,
or a combination thereof. In another embodiment, the statin and the salt of Formula
I are each administered from one to five times per day. In another embodiment, the
statin and the salt of Formula I are each administered one time per day. In yet another
embodiment, the subject is a mammal. In another embodiment, the subject is a human.
In another embodiment, the pharmaceutical composition further comprises a pharmaceutically
acceptable carrier, diluent or excipient.
[0016] In another embodiment, the invention provides a pharmaceutical composition, together
with one or more pharmaceutically acceptable carriers, diluents or excipients. In
another embodiment, the invention provides pharmaceutical composition wherein the
pharmaceutical composition is in tablet form. In yet another embodiment, the pharmaceutical
composition is in capsule form. In another embodiment, the pharmaceutical composition
is in controlled release or sustained release form.
[0017] The composition or combination of the invention can be used for treating atherosclerosis
in a subject in need thereof by administering to the subject a pharmaceutical composition
comprising a statin and a salt of Formula I. In another embodiment, the composition
or combination of the invention can be used for lowering LDL-cholesterol levels in
a subject in need thereof by administering to the subject a pharmaceutical composition
comprising a statin and a salt of Formula I. In still another embodiment, the composition
or combination of the invention can be used for raising HDL-cholesterol levels in
a subject in need thereof by administering to the subject a pharmaceutical composition
comprising a statin and a salt of Formula I.
[0018] In an embodiment of the invention, the salt of Formula I is administered first followed
by administration of the statin. In another embodiment of the invention, the statin
is administered first followed by administration of the salt of Formula I. In still
another embodiment of the invention, the statin and the salt of Formula I are administered
simultaneously.
[0019] In a particular embodiment, dyslipidemia is a low HDL level, a high LDL level or
high total cholesterol, or any combination thereof.
[0020] In another embodiment, dyslipidemia is associated with atherosclerosis.
Brief Description of the Drawings
[0021]
Figure 1 demonstrates that MNA lowers triglyceride levels in rats fed a hypertriglyceridemic
diet.
Figure 2 demonstrates that MNA slows atherosclerosis progression in apoE/LDLR-/- mice.
Detailed Description of the Invention
[0022] It is well known that nicotinic acid (NAc) in high doses possesses important properties
in the correction of lipoprotein profile (i.e. the treatment of lipoprotein abnormalities),
mostly by reducing triglyceride (TG) and elevating HDL levels. The main disadvantage
of nicotinic acid therapy is associated with its side effects. Very frequently, cutaneous
vasolidation and flushing are observed.
[0023] Studies performed by the instant inventors have demonstrated that a pyridinium salt,
namely, methylnicotinamide (MNA is a molecule that can be used for the treatment of
lipoprotein abnormalities. MNA is bound as a cationic molecule to Sepharose immobilized
heparin (see e.g., International Application No.
PCT/EP2005/050057). It was found that MNA releases PGI
2 and it is cytoprotective to various cell lines. In addition, MNA is chemically very
stable, non-toxic and very well tolerated.
[0024] The statins are a family of compounds that are usually inhibitors of 3-hydroxy-3-methylglutaryl
coenzyme A (HMG-CoA) reductase, the rate-limiting enzyme in cholesterol biosynthesis.
As HMG-CoA reductase inhibitors, the statins are able to reduce plasma cholesterol
levels in various mammalian species, including humans and are therefore effective
in the treatment of hypercholesterolaemia.
Definitions
[0025] These and other embodiments of the invention will be described with preference to
following definitions that, for convenience, are collected here.
[0026] The terms "dyslipidemia" and "atherosclerosis" as used herein, describe diseases
and disorders that may be treated or prevented (or a symptom of such disease or disorder
that may be reduced) by the compositions of the intention. In particular, dyslipidemia
is caused by either high total cholesterol, high triglycerides, low high- density
lipoprotein cholesterol, normal to elevated low-density lipoprotein cholesterol, or
small low-density lipoprotein particles in a subject, or any combination thereof.
These factors have been shown to play a role in a variety of diseases and disorders,
including, but not limited to, a disorder associated with the development and progress
of atherosclerosis (e.g., hypertension, diabetes or obesity).
[0027] In a particular embodiment, atherosclerosis is associated with an acute cardiovascular
event, in particular sudden cardiac death, acute coronary syndrome (including unstable
coronary artery disease, and (myocardial infarct), the necessity of coronary angioplasty,
coronary-aortal by-pass surgery (CABG), any type of surgery with extracorporeal circulation,
ischemic stoke, or peripheral circulation revascularization.
[0028] In another particular embodiment, atherosclerosis can be treated in patients with
chronic coronary disease, ischemic cerebrovascular episode or artherosclerosis of
the extremities, including obliterans.
[0029] Particular forms of dyslipidemia are hypercholesterolemia or hypertriglyceridemia.
[0030] In a particular embodiment of the invention, dyslipidemia can be treated by raising
HDL levels in a subject, decreasing LDL levels in a subject, lowering triglycerides
in a subject, and/or lowering total cholesterol in a subject by administering to the
subject in need thereof the composition or combination of the invention.
[0031] The term "treatment" or "treating," as used herein, is defined as the application
or administration of a therapeutic agent, i.e., a salt of Formula I in combination
with a statin, to a subject, who has dyslipidemia, a symptom of dyslipidemia or a
predisposition toward dyslipidemia, with the purpose to cure, heal, alleviate, relieve,
alter, remedy, ameliorate, improve or affect dyslipidemia or the symptoms of dyslipidemia.
Such treatments may be specifically tailored or modified, based on knowledge obtained
from the field of pharmacogenomics.
[0032] The term "subject" includes living organisms in which dyslipidemia or artherosclerosis
can occur, or which are susceptible to dyslipidemia. The term "subject" includes animals
(e.g., mammals, e.g., cats, dogs, horses, pigs, cows, goats, sheep, rodents, e.g.,
mice or rats, rabbits, squirrels, bears, primates (e.g., chimpanzees, monkeys, gorillas,
and humans)), as well as chickens, ducks, geese, and transgenic species thereof. Administration
of the compositions of the present invention to a subject to be treated can be carried
out using known procedures, at dosages and for periods of time effective to inhibit
dyslipidemia in the subject. An effective amount of the therapeutic compound necessary
to achieve a therapeutic effect may vary according to factors such as the state of
the disease or disorder in the subject, the age, sex, and weight of the subject, and
the ability of the therapeutic compound to inhibit the dyslipidemia in the subject.
Dosage regimens can be adjusted to provide the optimum therapeutic response. For example,
several divided doses may be administered daily or the dose may be proportionally
reduced as indicated by the exigencies of the therapeutic situation. A nonlimiting
example of an effective dose range for a therapeutic compound of the invention (i.e.
MNA) is between 1 and 500 mg/kg of body weight/per day. One of ordinary skill in the
art would be able to study the relevant factors and make the determination regarding
the effective amount of the therapeutic compound without undue experimentation.
[0033] Actual dosage levels of the active ingredients in the pharmaceutical compositions
of this invention may be varied so as to obtain an amount of the active ingredient
which is effective to achieve the desired therapeutic response for a particular patients,
composition, and mode of administration, without being toxic to the patient.
[0034] In particular, the selected dosage level will depend upon a variety of factors including
the activity of the particular compound of the present invention employed, the time
of administration, the rate of excretion of the particular compound being employed,
the duration of the treatment, other drugs, compounds or materials used in combination
with the particular compound employed, the age, sex, weight, condition, general health
and prior medical history of the patient being treated, and like factors well known
in the medical arts.
[0035] A medical doctor, e.g., physician or veterinarian having ordinary skill in the art
can readily determine and prescribe the effective amount of the pharmaceutical composition
required. For example, the physician or veterinarian could start doses of the compounds
employed in the pharmaceutical composition of the invention at levels lower than that
required in order to achieve the desired therapeutic effect and gradually increase
the dosage until the desired effect is achieved.
[0036] The regimen of administration can affect what constitutes an effective amount. The
therapeutic formulations can be administered to the subject either prior to or after
the onset of dyslipidemia. Further, several divided dosages, as well as staggered
dosages, can be administered daily or sequentially, or the dose can be continuously
infuse, or can be a bolus injection. Further, the dosages of the therapeutic formulations
can be proportionally increased or decreased as indicated by the exigencies of the
therapeutic or prophylactic situation. In particular embodiments, it is especially
advantageous to formulate compositions in dosage unit form for ease of administration
and uniformity of dosage. Dosage unit form as used herein refers to physically discrete
units suited as unitary dosages for the subjects to be treated; each unit containing
a predetermined quantity of therapeutic compound calculated to produce the desired
therapeutic effect in association with the required pharmaceutical vehicle. The specification
for the dosage unit forms of the invention are dictated by and directly dependent
on (a) the unique characteristic of the therapeutic compound and the particular therapeutic
effect to be achieved, and (b) the limitations inherent in the art of compounding/formulating
such a therapeutic compound for the treatment of dyslipidemia.
[0037] The 1-methylnicotinamide salt used in the invention, which is also referred to herein
as simply MNA, can be synthesized using techniques well-known the one skilled in the
art of organic synthesis.
[0038] The salt of Formula I in combination with a statin slow the progression of atherosclerotic
plaques (e.g., progression of atherosclerotic plaques is slowed in coronary arteries,
in carotid arteries, in the peripheral arterial system) or cause the regression of
atherosclerotic plaques.
[0039] The salt of Formula I in combination with a statin raise HDL levels in a subject,
decrease LDL levels in a subject, lower triglycerides in a subject, and/or lower total
cholesterol in a subject.
[0040] Without being bound by theory, it is believed that the salts of Formula I are effective
in treating dyslipidemia for the following reasons: on the surface of the vascular
endothelium, polyanionic molecules, such as glycosaminoglycans, are present and it
would be expected that the molecules able to manifest some endothelial potential should
be bound to vascular endothelium. The salts of Formula I, which are positively charged,
bind to the negatively charged glycosaminoglycans present on the vascular endothelium
surface due to electrostatic interactions. This binding can result in manifestation
of various endothelial effects, some of which can be positive from pharmacologic view
point, for example release of NO and/or prostacyclin. Further, this activity can result
in the treatment or prevention of dyslipidemia or atherosclerosis (which can be caused
by, e.g., high total cholesterol, high triglycerides, low high-density lipoprotein
cholesterol, normal to elevated low-density lipoprotein cholesterol, or small low-density
lipoprotein particles in the subject).
[0041] As used herein, the language "pharmaceutically acceptable salt" refers to a salt
of the administered compounds prepared from pharmaceutically acceptable non-toxic
acids including inorganic acids, organic acids, solvates, hydrates, or clathrates
thereof. Examples of such inorganic acids are hydrochloric, hydrobromic, hydroiodic,
nitric, sulfuric, and phosphoric. Appropriate organic acids may be selected, for example,
from aliphatic, aromatic, carboxylic and sulfonic classes of organic acids, examples
of which are formic, acetic, propionic, succinic, camphorsulfonic, citric, fumaric,
gluconic, isethionic, lactic, malic, mucic, tartaric, para-toluenesulfonic, glycolic,
glucuronic, maleic, furoic, glutamic, benzoic, anthranilic, salicylic, phenylacetic,
mandelic, embonic (pamoic), methanesulfonic, ethanesulfonic, pantothenic, benzenesulfonic
(besylate), stearic, sulfanilic, alginic, galacturonic.
[0042] In a particular embodiment, the salt of Formula I is the chloride, form of 1-methylnicotinamide.
[0043] As described above, the salts of Formula I are co-administered with statins. The
term "statin," where used in the specification and the appending claims, is synonymous
with the terms "3-hydroxy-3-methylglutary-1-Coenzyme A reductase inhibitor" and "HMG-CoA
reductase inhibitor." These three terms are used interchangeably in the art. As the
synonyms suggest, statins are inhibitors of 3-hydroxy- 3-methylglutaryl Coenzyme A
reductase and, as such, are effective in lowering the level of blood plasma cholesterol.
Statins and pharmaceutically acceptable salts thereof are particularly useful in lowering
low-density lipoprotein cholesterol levels in mammals, and particularly in humans.
[0044] Statins suitable for use in the compositions and combinations of the invention are
also disclosed in
U.S. Pat. Nos. 4,681,893;
5,273,995;
5,356,896;
5,354,772;
5,686,104;
5,969,156; and
6,126,971. As some statins may exist in an inactive form, such as a lactone {e.g., simvastatin),
the invention encompasses using the active form {e.g., b-hydroxy acid form) of them.
See
Physicians Desk Reference, 54.sup.th Ed. (2000) pp. 1917-1920.
[0045] Statins include mevastatin, lovastatin, simvastatin, pravastatin, fluvastatin, pitavastatin,
atorvastatin, cerivastatin, rosuvastatin, or pentostatin, or a pharmaceutically acceptable
salt, solvate, clathrate, polymorph, prodrug, or pharmacologically active metabolite
thereof.
[0046] Preferred statins are those agents which have been marketed, most preferred are pravastatin
{e.g., Pravachol™), fluvastatin, simvastatin {e.g., Zocor™), lovastatin {e.g., Mevacor™),
atorvastatin, or pitavastatin or a pharmaceutically acceptable salt thereof.
[0047] In some embodiments, a salt of Formula I and a statin are included in a single composition,
which is administered to a. subject having dyslipidemia or atherosclerosis. In other
embodiments, a salt of Formula I and a statin are administered separately to such
a subject. The first and at least one second compound may either be co-administered
to a subject (i.e., at the same time) or be administered sequentially (i.e., one after
the other).
[0048] A combination of compounds described herein can either result in synergistic increase
in effectiveness against dyslipidemia or atherosclerosis, relative to effectiveness
following administration of each compound when used alone, or such an increase can
be additive. Compositions described herein typically include lower dosages of each
compound in a composition, thereby avoiding adverse interactions between compounds
and/or harmful side effects, such as ones which have been reported for similar compounds.
Furthermore, normal amounts of each compound when given in combination could provide
for greater efficacy in subjects who are either unresponsive or minimally responsive
to each compound when used alone.
[0049] For example, statins have been associated with some side-effects, including myalgias,
muscle cramps, myositis, myopathy, and other gastrointestinal problem. The administration
of MNA in combination with a statin to a subject in need thereof may serve to counteract
unwanted side-effects associated with statin use.
[0050] A synergistic effect can be calculated, for example, using suitable methods such
as, for example, the Sigmoid-Emax equation (
Holford, N. H. G. and Scheiner, L. B., Clin. Pharmacokinet. 6: 429-453 (1981)), the equation of Loewe additivity (
Loewe, S. and Muischnek, H., Arch. Exp. Pathol Pharmacol. 114: 313-326 (1926)) and the median- effect equation (
Chou, T. C. and Talalay, P., Adv. Enzyme Regul. 22: 27-55 (1984)). Each equation referred to above can be applied to experimental data to generate
a corresponding graph to aid in assessing the effects of the drug combination. The
corresponding graphs associated with the equations referred to above are the concentration-effect
curve, isobologram curve and combination index curve, respectively.
[0051] Dosage of salts of Formula I for administration can be in the range of from about
1 ng to about 10,000 mg, about 5 ng to about 9,500 mg, about 10 ng to about 9,000
mg, about 20 ng to about 8,500 mg, about 30 ng to about 7,500 mg, about 40 ng to about
7,000 mg, about 50 ng to about 6,500 mg, about 100 ng to about 6,000 mg, about 200
ng to about 5,500 mg, about 300 ng to about 5,000 mg, about 400 ng to about 4,500
mg, about 500 ng to about 4,000 mg, about 1 µg to about 3,500 mg, about 5 µg to about
3,000 mg, about 10 µg to about 2,600 mg, about 20 µg to about 2,575 mg, about 30 µg
to about 2,550 mg, about 40 µg to about 2,500 mg, about 50 µg to about 2,475 mg, about
100 µg to about 2,450 mg, about 200 µg to about 2,425 mg, about 300 µg to about 2,000,
about 400 µg to about 1,175 mg, about 500 µg to about 1,150 mg, about 0.5 mg to about
1,125 mg, about 1 mg to about 1,100 mg, about 1.25 mg to about 1,075 mg, about 1.5
mg to about 1,050 mg, about 2.0 mg to about 1,025 mg, about 2.5 mg to about 1,000
mg, about 3.0 mg to about 975 mg, about 3.5 mg to about 950 mg, about 4.0 mg to about
925 mg, about 4.5 mg to about 900 mg, about 5 mg to about 875 mg, about 10 mg to about
850 mg, about 20 mg to about 825 mg, about 30 mg to about 800 mg, about 40 mg to about
775 mg, about 50 mg to about 750 mg, about 100 mg to about 725 mg, about 200 mg to
about 700 mg, about 300 mg to about 675 mg, about 400 mg to about 650 mg, about 500
mg, or about 525 mg to about 625 mg. The salt of Formula I is administered in combination
with a statin, wherein the statin is administered in a range described above.
[0052] In some embodiments, the dose of a salt of Formula I is between about 0.0001 mg and
about 25 mg. In some embodiments of the invention, a dose of a salt of Formula I used
in compositions described herein is less than about 100 mg, or less than about 80
mg, or less than about 60 mg, or less than about 50 mg, or less than about 30 mg,
or less than about 20 mg, or less than about 10 mg, or less than about 5 mg, or less
than about 2 mg, or less than about 0.5 mg. Similarly, in some embodiments, a dose
of a second compound (i.e., a statin) as described herein is less than about 1000
mg, or less than about 800 mg, or less than about 600 mg, or less than about 500 mg,
or less than about 400 mg, or less than about 300 mg, or less than about 200 mg, or
less than about 100 mg, or less than about 50 mg, or less than about 40 mg, or less
than about 30 mg, or less than about 25 mg, or less than about 20 mg, or less than
about 15 mg, or less than about 10 mg, or less than about 5 mg, or less than about
2 mg, or less than about 1 mg, or less than about 0.5 mg.
Formulations for Administration
[0053] In another embodiment, the present invention is directed to a packaged pharmaceutical
composition comprising a container holding a therapeutically effective amount of a
salt of Formula I in combination with a statin; and instructions for using the compound
to treat, prevent, or reduce one or more symptoms of dyslipidemia or atherosclerosis
in a subject.
[0054] The term "container" includes any receptacle for holding the pharmaceutical composition.
For example, in one embodiment, the container is the packaging that contains the pharmaceutical
composition. In other embodiments, the container is not the packaging that contains
the pharmaceutical composition, i.e., the container is a receptacle, such as a box
or vial that contains the packaged pharmaceutical composition or unpackaged pharmaceutical
composition and the instructions for use of the pharmaceutical composition. Moreover,
packaging techniques are well known in the art. It should be understood that the instructions
for use of the pharmaceutical composition may be contained on the packaging containing
the pharmaceutical composition, and as such the instructions form an increased functional
relationship to the packaged product. However, it should be understood that the instructions
can contain information pertaining to the compounds ability to perform its intended
function, e.g., treating, preventing, or reducing dyslipidemia or atherosclerosis
in a subject.
[0055] The language "therapeutically effective amount" describes the amount of the salt
of Formula I of the invention that is effective to treat dyslipidemia or atherosclerosis
in a subject.
[0056] The language "pharmaceutically acceptable carrier" includes a pharmaceutically acceptable
materials, composition or carriers, such as a liquid or solid filler, diluent, excipients,
solvent or encapsulating material, involved in carrying or transporting a compound(s)
of the present invention within or to the subject such that it can perform its intended
function. Typically, such compounds are carried or transported from one organ, or
portion of the body, to another organ, or portion of the body. Each carrier must be
"acceptable" in the sense of being compatible with the other ingredients of the formulation,
and not injurious to the patient. Some examples of materials which can serve as pharmaceutically
acceptable carriers include: sugars, such as lactose, glucose and sucrose; starches,
such as corn starch and potato starch; cellulose, and its derivatives, such as sodium
carboxymethyl cellulose, ethyl cellulose and cellulose, acetate; powdered tragacanth;
malt; gelatin; talc; excipients, such as cocoa butter and suppository waxes; oils,
such as peanut oil, cottonseed oil, safflower oil, sesame oil, olive oil., corn oil
and soybean oil; glycols, such as propylene glycol; polyols, such as glycerin, sorbitol,
mannitol and polyethylene glycol; esters, such as ethyl oleate and ethyl laurate;
agar; buffering agents, such as magnesium hydroxide and aluminum hydroxide; alginic
acid; pyrogen-free water; isotonic saline; Ringer's solution; ethyl alcohol; phosphate
buffer solutions; and other non-toxic compatible substances employed in pharmaceutical
formulations. As used herein "pharmaceutically acceptable carrier" also includes any
and all coating, antibacterial and antifungal agents, and absorption delaying agents,
and the like that are compatible with the activity of the compound, and are physiologically
acceptable to the subject. Supplementary active compounds can also be incorporated
into the compositions.
[0057] The carrier can be a solvent or dispersion medium containing, for example, water,
ethanol, polyol (for example, glycerol, propylene glycol, and liquid polyethylene
glycol, and the like), suitable mixtures thereof, and vegetable oils. The proper fluidity
can be maintained, for example, by the use of a coating such as lecithin, by the maintenance
of the required particles size in the case of dispersion and by the use of surfactants.
Prevention of the action of microorganisms can be achieved by various antibacterial
and antifungal agents, for example, parabens, chlorobutanol, phenol, ascorbic acid,
thimerosal, and the like. In many cases, it will be preferable to include isotonic
agents, for example, sugars, sodium chloride, or polyalcohols such as mannitol and
sorbitol, in the composition. Prolonged absorption of the injectable compositions
can be brought about by including in the compositions an agent which delays absorption,
for example, aluminum monostearate or gelatin. In one embodiment, the pharmaceutically
acceptable carrier is not DMSO alone.
[0058] The compounds for use in the invention can be formulated for administration by any
suitable route, such as for oral or parenteral, for example, transdermal, transmucosal
(e.g., sublingual, lingual, (trans)buccal, (trans)urethral, vaginal (e.g., trans-
and perivaginally), (intranasal and (Trans)rectal), intravesical, intrapulmonary,
intraduodenal, intrathecal, subcutaneous, intramuscular, intradermal, intra-arterial,
intravenous, intrabronchial, inhalation, and topical administration. Suitable compositions
and dosage forms include, for example, tablets, capsules, caplets, pills, gel caps,
troches, dispersions, suspensions, solutions, syrups, granules, beads, transdermal
patches, gels, powders, pellets, magmas, lozenges, creams, pastes, plasters, lotions,
discs, suppositories, liquid sprays for nasal or oral administration, dry powder or
aerosolized formulations for inhalation, compositions and formulation for intravesical
administration and the like. It should be understood that the formulations and compositions
that would be useful in the present invention are not limited to the particular formulations
and composition that are described herein.
Oral Administration.
[0059] For example, for oral administration the compounds can be in the form of tablets
or capsules prepared by conventional means with pharmaceutically acceptable excipients
such as binding agents (e.g., polyvinylpyrrolidone, hydroxypropylcellulose or hydroxypropylmethylcellulose);
fillers (e.g., cornstarch, lactose, macrocrystalline cellulose or calcium phosphate),
lubricants (e.g., magnesium stearate, talc, or silica); disintegrates (e.g., sodium
starch glycollate); or wetting agents (e.g., sodium lauryl sulphate). If desired,
the tablets can be coated using suitable methods and coating materials such was OP
ADR Y™ film coating systems available from Colorcon, West Point, Pa. (e.g., OPADRY™
OY Type, OY-C Type, Organic Enteric OY-P Type, Aqueous Enteric OY-A Type, OY-PM Type
and OPADRY™ White, 32K1 8400). Liquid preparation for oral administration can be in
the form of solutions, syrups or suspensions. The liquid preparations can be prepared
by conventional means with pharmaceutically acceptable additives such as suspending
agents (e.g., sorbitol syrup, methyl cellulose or hydrogenated edible fats); emulsifying
agent (e.g., lecithin or acacia); nonaqueous vehicles (e.g., almond oil, oily esters
or ethyl alcohol); and preservatives (e.g., ethyl or propyl p-hydroxy benzoates or
sorbic acid).
Parenteral Administration
[0060] For parenteral administration, the compounds for use in the invention can be formulated
for injection or infusion, tor example, intravenous, intramuscular or subcutaneous
injection or infusion, or for administration in a bolus dose and/or continuous infusion.
Suspensions, solutions or emulsions in an oily or aqueous vehicle, optionally containing
other formulatory agents such as suspending, stabilizing and/or dispersing agents
can be used.
Transmucosal Administration
[0061] Transmucosal administration is carried out using any type of formulation or dosage
unit suitable for application to mucosal tissue. For example, the selected active
agent can be administered to the buccal mucosal in an adhesive tablet or patch, sublingually
administered by placing a solid dosage form under the tongue, lingually administered
by placing a solid dosage form on the tongue, administered nasally as droplets or
a nasal spray, administered by inhalation of an aerosol formulation, a non- aerosol
liquid formulation, or a dry powder, placed within or near the rectum ("transrectal"
formulations), or administered to the urethra as a suppository, ointment, or the like.
Transrectal Administration
[0062] Transrectal dosage forms may include rectal suppositories, creams, ointments, any
liquid formulations (enemas). The suppository, cream, ointment or liquid formulation
for transrectal delivery comprises a therapeutically effective amount of the selected
active agent and one or more conventional nontoxic carriers suitable for transrectal
drug administration. The transrectal dosage forms of the present invention can be
manufactured using conventional processes. The transrectal dosage unit can be fabricated
to disintegrate rapidly or over a period of several hours. The time period for complete
disintegration may be in the range of from about 10 minutes to about 6 hours, e.g.,
less than about 3 hours.
Intranasal or Inhalation Administration
[0063] The active agents may also be administered intranasally or by inhalation. Compositions
for intranasal administration are generally liquid formulations for administration
as a spray or in the form of drops, although powder formulations for intranasal administration,
e.g., insufflations, nasal gels, creams, pastes or ointments or other suitable formulators
can be used. For liquid formulations, the active agent can be formulated into a solution,
e.g., water or isotonic saline, buffered or unbuffered, or as a suspension. In certain
embodiments, sucή solutions or suspensions are isotonic relative to nasal secretions
and of about the same pH, ranging e.g., from about pH 4.0 to about pH 7.4 or, from
about pH 6.0 to about pH 7.0. Buffers should be physiologically compatible and include,
for example, phosphate buffers. Furthermore, various devices are available in the
art for the generation of drops, droplets and sprays, including droppers, squeeze
bottles, and manually and electrically powered intranasal pump dispensers. Active
agent containing intranasal carriers can also include nasal gels, creams, pastes or
ointments with a viscosity of e.g., from about 10 to about 6500 cps, or greater, depending
on the desired sustained contact with the nasal mucosal surfaces. Such carrier viscous
formulations may be based upon, for example, alkylcelluloses and/or other biocompatible
carriers of high viscosity well known to the art (see e.g., Remington: The Science
and Practice of Pharmacy, supra). Other ingredients, such as preservatives, colorants,
lubricating or viscous mineral or vegetable oils, perfumes, natural or synthetic plant
extracts such as aromatic oils, and humectants and viscosity enhancers such as, e.g.,
glycerol, can also be included to provide additional viscosity, moisture retention
and a pleasant texture and odor for the formulation. Formulations for inhalation may
be prepared as an aerosol, either a solution aerosol in which the active agent is
solubilized in a carrier (e.g., propellant) or a dispersion aerosol in which the active
agent is suspended or dispersed throughout a carrier and an optional solvent. Non-aerosol
formulations for inhalation can take the form of a liquid, typically an aqueous suspension,
although aqueous solutions may be used as well. In such a case, the carrier is typically
a sodium chloride solution having a concentration such that the formulation is isotonic
relative to normal body fluid. In addition to the carriers, the liquid formulations
can contain water and/or excipients including an antimicrobial preservative (e.g.,
benzalkonium chloride, benzethonium chloride, chlorobutanol, phenylethyl alcohol,
thimerosal and combinations thereof), a buffering agent (e.g., citric acids, potassium
metaphosphate, potassium phosphate, sodium acetate, sodium citrate, and combinations
thereof), a surfactant (e.g., polysorbate 80, sodium lauryl sulfate, sorbitan monopalmitate
and combinations thereon), and/or a suspending agent (e.g., agar, bentonite, microcrystalline
cellulose, sodium carboxymethylcellulose, hydroxypropyl methylcellulose, tragacanth,
veegum and combinations thereof). Non-aerosol formulations for inhalation can also
comprise dry powder formulations, particularly insufflations in which the powder has
an average particles size of from about 0.1 µm to about 50 µm, e.g., from about 1
µm to about 25 µm.
Topical Formulation
[0064] Topical formulations can be in any form suitable for application to the body surface,
and may comprise, for example, an ointment, cream, gel, lotion, solution, paste or
the like, and/or may be prepared so as to contain liposomes, micelles, and/or microspheres.
In certain embodiments, topical formulations herein are ointments, creams and gels.
Transdermal Administration
[0065] The compounds of the invention may also be administered through the skin or mucosal
tissue using conventional transdermal drug delivery systems, wherein the agent is
contained within a laminated structure (typically referred to as a transdermal "patch")
that serves as a drag delivery device to be affixed to the skin. Transdermal drug
delivery may involve passive diffusion or it may be facilitated using electrotransport,
e.g., iontophoresis. In a typical transdermal "patch," the drug composition is contained
in a layer, or "reservoir," underlying an upper blacking layer. The laminated structure
may contain a single reservoir, or it may contain multiple reservoirs. In one type
of patch, referred to as a "monolithic" system, the reservoir is comprised of a polymeric
matrix of a pharmaceutically acceptable contact adhesive material that serves to affix
the system to the skin during drug delivery. Examples of suitable skin contact adhesive
materials include, but are not limited to, polyethylenes, polysiloxanes, polyisobutylenes,
polyacrylates, polyurethanes, and the like. Alternatively, the drug-containing reservoir
and skin contact adhesive are separate and distinct layers, with the adhesive underlying
the reservoir which, in this case, may be either a polymeric matrix as described above,
or it may be a liquid or hydrogel reservoir, or may take some other form.
Additional Administration Forms
[0066] Additional dosage forms of this invention include dosage forms as described in
U.S. Pat. No. 6,340,473,
U.S. Pat. No. 6,488,962,
U.S. Pat. No. 6,451,808,
U.S. Pat. No. 5,972,389,
U.S. Pat. No. 5,582,837, and
U.S. Pat. No. 5,007,790. Additional dosage forms of this invention also include dosages forms as described
in
U.S. patent application Ser. No. 20030147952,
U.S. patent application Ser. No. 20030104062,
U.S. patent application Ser. No. 20030104053,
U.S. patent application Ser. No. 20030044466,
U.S. patent Application Ser. No. 20030039688, and
U.S. patent application Ser. No. 20020051820. Additional dosage forms of this invention also include dosage forms as described
in
PCT Patent Application WO 03/35041,
PCT Patent Application WO 03/35040,
PCT Patent Application WO 03/35029,
PCT Patent Application WO 0/335177,
PCT Patent Application WO 03/35039,
PCT Patent Application WO 02/96404,
PCT Patent Application WO 02/32416,
PCT Patent Application WO 01/97783,
PCT Patent Application WO 01/56544,
PCT Patent Application WO 01/32217,
PCT Patent Application WO 98/55107,
PCT Patent Application WO 98/11879,
PCT Patent Application WO 97/47285,
PCT Patent Application WO 93/18755, and
PCT Patent Application WO 90/11757.
Controled Release Formulations and Delivery Systems
[0067] In certain embodiments, the formulations of the present invention can be, but are
not limited to, short-term, rapid-offset, as well as controlled, for example, sustained
release, delayed release and pulsatile release formulations.
[0068] The term sustained release is used in its conventional sense to refer to a drug formulation
that provides for gradual release of a drug over an extended period of time, and that
may, although not necessarily, result in substantially constant blood levels of a
drug over an extended time period. The period of time can be as long as a month or
more and should be a release which is longer that the same amount of agent administered
in bolus form.
[0069] For sustained release, the compounds can be formulated with a suitable polymer or
hydrophobic materials which provides sustained release properties to the compounds.
As such, the compounds for use the method of the invention can be administered in
the form of microparticles for example, by injection or in the form of wafers or discs
by implantation.
[0070] In a preferred embodiment of the invention, the salts of Formula I, are administered
to a subject in combination with a statin, using a sustained release formulation.
The term delayed release is used herein in its conventional sense to refer to a drug
formulation that provides for an initial release of the drug after some delay following
drug administration and that mat, although not necessarily, includes a delay of from
about 10 minutes up to about 12 hours.
[0071] The term pulsatile release is used herein in its conventional sense to refer to a
drug formulation that provides release of the drug in such a way as to produce pulsed
plasma profiles of the drug after drug administration.
[0072] The term immediate release is used in its conventional sense to refer to a drug formulation
that provides for release of the drug immediately after drug administration. As used
herein, short-term refers to any period of time up to and including about 8 hours,
about 7 hours, about 6 hours, about 5 hours, about 4 hours, about 3 hours, about 2
hours, about 1 hour, about 40 minutes, about 20 minutes, or about 10 minutes after
drug administration.
[0073] As used herein., rapid-offset refers to any period of time up to and including about
8 hours, about 7 hours, about 6 hours, about 5 hours, about 4 hours, about 3 hours,
about 2 hours, about 1 hour, about 40 minutes, about 20 minutes, or about 10 minutes
after drug administration.
Dosing
[0074] The therapeutically effective amount or dose of a compound used in the present invention
will depend on the age, sex and weight of the patient, the current medical condition
of the patient and the nature of the lipoprotein abnormalities being treated. The
skilled artisan will be able to determine appropriate dosages depending on these and
other factors.
[0075] A suitable dose of a compound used in the present invention can be in the range of
from about 0.001 mg to about 500 mg per day, such as from about 0.01 mg to about 100
mg, for example, from about 0.05 mg to about 50 mg, such as about 0.5 mg to about
25 mg per day. The dose can be administered in a single dosage or in multiple dosages,
for example from 1 to 4 or more times per day When multiple dosages are used, the
amount of each dosage can be the same or different. For example a dose of 1 mg per
day can be administered as two 0.5 mg doses, with about a 12 hour interval between
doses.
[0076] It is understood that the amount of compound dosed per day can be administered every
day, every other day, every 2 days, every 3 days, every 4 days, every 5 days, etc.
For example, with every other day administration, a 5 mg per day dose can be initiated
on Monday with a first subsequent 5 mg per day dose administered on Wednesday, a second
subsequent 5 mg per day dose administered on Friday, etc.
[0077] The compounds for use in the invention can be formulated in unit dosage form. The
term "unit dosage form" refers to physically discrete units suitable as unitary dosage
for subjects undergoing treatment, with each unit containing a predetermined quantity
of active material calculated to produce the desired therapeutic effect, optionally
in association with a suitable pharmaceutical carrier. The unit dosage form can be
for a single daily dose or one of multiple daily doses {e.g., about 1 to 4 or more
times per day). When multiple daily doses are used, the unit dosage form can be the
same or different for each dose.
Exemplification of the Invention
[0078] The invention is further illustrated by the following examples, which should not
be construed as further limiting. For the experiments described herein, MNA refers
to 1-methylnicotinamide chloride.
Example 1: Anti-atherogenic effect of MNA after a short-term use
[0079] The anti-atherogenic effect of MNA was investigated in 20 dyslipidemic and cardiologic
patients. The enrollment criteria was: high level of TG (~250 mg/dl) and/or high level
of total cholesterol (TC) (≥200 mg/dl). The mean age of the patients was 57.5 (range
37-81 years). The enrolled patients were divided into two groups: dyslipidemic patients
(4 pateints) and dyslipidemic patients after acute coronary failure (myocardial infarction)
(12 patients). The patients were treated with MNA for 2 weeks. The MNA was administered
orally, three times a day, one capsule (30 mg MNA) after meal. The 16 patients have
finished clinical examination.
[0080] The plasma levels of TC, TG, and HDL were measured at baseline and after 2 weeks
of therapy. The level of LDL was measured in those cases where it was possible (due
to high TG level).
[0081] It has been found that MNA reduced the TC (248 vs. 212 mg/dl) (-14.50%) and TG (409
vs. 216 mg/dl) (-47.2%) levels between the base-line and 2 weeks measurements. The
substantial increase of the HDL was observed after 2 weeks therapy in a group of dyslipidemic
patients. The increase of the HDL was not observed after 2 weeks therapy in a group
of dyslipidemic patients after acute coronary failure (myocardial infarction). The
significant reduction of TG/HDL ratio (9.60 vs. 5.25) was observed.
[0082] Results of this study are shown in Tables I and II. Patient nos. 1-4 were dyslipidemic.
Patient nos. 5-16 were dyslipidemic patients after acute coronary failure (myocardial
infarction).
Table I
| Patient no. |
Sex |
Age |
TG |
Total Cholesterol |
LDL |
HDL |
| visit 1 [mg/dl] |
visit 2 [mg/dl] |
% |
visit 1 [mg/dl] |
visit 2 [mg/dl] |
% |
visit 1 [mg/dl] |
visit 2 [mg/dl] |
% |
visit 1 [mg/dl] |
visit 2 [mg/dl] |
% |
| 1. |
F |
53 |
206 |
200 |
-2.91% |
301 |
280 |
-6.98% |
- |
- |
- |
51 |
67 |
31.37% |
| 2. |
F |
64 |
381 |
213 |
-44.09% |
183 |
188 |
2.73% |
- |
- |
- |
33 |
45 |
36.36% |
| 3. |
F |
81 |
590 |
160 |
-72.88% |
293 |
243 |
-17.06% |
- |
- |
- |
42 |
72 |
71.43% |
| 4. |
M |
48 |
269 |
222 |
-17.47% |
243 |
231 |
-4.94% |
- |
- |
- |
49 |
42 |
-14.29% |
| 5. |
M |
66 |
323 |
243 |
-24.77% |
237 |
251 |
5.91% |
137 |
162 |
18.25% |
36 |
40 |
11.11% |
| 6. |
M |
531 |
488 |
239 |
-51.02% |
274 |
260 |
-5.11% |
138 |
171 |
23.91% |
38 |
41 |
7.89% |
| 7. |
M |
37 |
387 |
175 |
-54.78% |
192 |
208 |
8.33% |
55 |
114 |
107.27% |
60 |
59 |
-1.67% |
| 8. |
F |
54 |
409 |
209 |
-48.90% |
253 |
155 |
-38.74% |
138 |
82 |
-40.58% |
34 |
31 |
-8.82% |
| 9. |
M |
53 |
478 |
208 |
-56.49% |
232 |
130 |
-43.97% |
- |
- |
- |
55 |
41 |
-25.45% |
| 10. |
F |
76 |
350 |
181 |
-48.29% |
245 |
203 |
-17.14% |
120 |
121 |
0.83% |
55 |
45 |
-18.18% |
| 11. |
F |
78 |
301 |
185 |
-38.54% |
257 |
194 |
-24.51% |
146 |
111 |
-23.97% |
50 |
46 |
-8.00% |
| 12. |
M |
42 |
305 |
207 |
-32.13% |
231 |
159 |
-31.17% |
126 |
81 |
-35.71% |
44 |
37 |
-15.91% |
| 13. |
F |
56 |
461 |
339 |
-26.46% |
264 |
253 |
-4.17% |
130 |
149 |
14.62% |
42 |
36 |
-14.29% |
| 14. |
M |
50 |
547 |
240 |
-56.12% |
310 |
271 |
-12.58% |
100 |
178 |
78.00% |
41 |
45 |
9.76% |
| 15. |
M |
48 |
305 |
259 |
-15.08% |
221 |
229 |
3.62% |
131 |
148 |
12.98% |
29 |
29 |
0.00% |
| 16. |
M |
61 |
752 |
181 |
-75.93% |
242 |
146 |
-39.67% |
- |
- |
- |
49 |
38 |
-22.45% |
| |
| Mean Value |
67.60 |
409.50 |
216.31 |
-47.18% |
248.63 |
212.56 |
-14.50% |
122.10 |
131.70 |
7.86% |
44.25 |
44.63 |
0.85% |
| Standard deviation |
12.69 |
138.90 |
42.84 |
|
35.15 |
47.15 |
|
26.77 |
35.07 |
|
8.93 |
11.89 |
|
Table II
| Patient no. |
Sex |
Age |
TG |
TG/HDL |
Uric Acid |
Glucose |
| visit 1 [mg/dl] |
visit 2 [mg/dl] |
% |
visit 1 [mg/dl] |
visit 2 [mg/dl] |
% |
visit 1 [mg/dl] |
visit 2 [mg/dl] |
% |
visit 1 [mg/dl] |
visit 2 mg/dl] |
% |
| 1. |
F |
53 |
206 |
200 |
-2.91% |
4.04 |
2.99 |
-26.10% |
5.26 |
5.31 |
0.95% |
82 |
89 |
8.54% |
| 2. |
F |
64 |
381 |
213 |
-44.09% |
11.55 |
4.73 |
-59.00% |
5.4 |
5.26 |
-2.59% |
143 |
128 |
-10.49% |
| 3. |
F |
81 |
590 |
160 |
-72.88% |
14.05 |
2.22 |
-84.18% |
5.9 |
5.8 |
-1.69% |
98 |
97 |
-1.02% |
| 4. |
M |
48 |
269 |
222 |
-17.47% |
5.49 |
5.29 |
-3.72% |
6.01 |
7.33 |
21.96% |
106 |
111 |
4.72% |
| 5. |
M |
66 |
323 |
243 |
-24.77% |
8.97 |
6.08 |
-32.29% |
- |
- |
- |
- |
- |
- |
| 6. |
M |
53 |
488 |
239 |
-51.02% |
12.84 |
5.83 |
-54.61% |
8.6 |
- |
- |
167 |
152 |
-8.98% |
| 7. |
M |
37 |
387 |
175 |
-54.78% |
6.45 |
2.97 |
-54.01% |
|
7.2 |
-16.28% |
79 |
81 |
2.53% |
| 8. |
F |
54 |
409 |
209 |
-48.90% |
12.03 |
6.74 |
-43.95% |
4.3 |
4.4 |
2.33% |
83 |
89 |
7.23% |
| 9. |
M |
53 |
478 |
208 |
-56.49% |
8.69 |
5.07 |
-41.63% |
14.5 |
8.9 |
-38.62% |
121 |
90 |
-25.62% |
| 10. |
F |
76 |
350 |
181 |
-48.29% |
6.36 |
4.02 |
-36.79% |
- |
- |
- |
96 |
101 |
5.21% |
| 11. |
F |
78 |
301 |
185 |
-38.54% |
6.02 |
4.02 |
-33.19% |
7 |
9.6 |
37.14% |
110 |
129 |
17.27% |
| 12. |
M |
42 |
305 |
207 |
-32.13% |
6.93 |
5.59 |
-19.29% |
6.2 |
6.6 |
6.45% |
119 |
96 |
-19.33% |
| 13. |
F |
56 |
461 |
339 |
-26.46% |
10.98 |
9.42 |
-14.21% |
- |
- |
- |
82 |
82 |
0.00% |
| 14. |
M |
50 |
547 |
240 |
-56.12% |
13.34 |
5.33 |
-60.02% |
- |
- |
- |
88 |
96 |
9.09% |
| 15. |
M |
48 |
305 |
259 |
-15.08% |
10.52 |
8.93 |
-15.08% |
5.7 |
5.7 |
0.00% |
95 |
113 |
18.95% |
| 16. |
M |
61 |
752 |
181 |
-75.93% |
15.35 |
4.76 |
-68.96% |
6.9 |
5.3 |
-23.19% |
85 |
- |
- |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Mean Value |
57.50 |
409.50 |
216.31 |
-47.18% |
9.60 |
5.25 |
-45.32% |
|
|
|
|
|
|
| Standard deviation |
12.69 |
138.90 |
42.84 |
|
3.46 |
1:96 |
|
|
|
|
|
|
|
Example 2: Anti-atherogenic effect of MNA after a long term use
[0083] The anti-atherogenic effect of MNA was investigated in 2 dyslipidemic patients. The
enrollment criteria was: high level of TG (≥250 mg/dl) and/or high level of TC (≥200
mg/dl). The patients were treated with MNA for 13 months. The MNA was administered
orally, two times a day (50 mg MNA) after meal.
[0084] The plasma levels of TC, TG, and HDL were measured at baseline and during the therapy.
The level of LDL was measured in those cases where it was possible (due to high TG
level).
[0085] It has been found that MNA reduced significantly the TC and TG levels in these patients.
An increase of HDL levels was observed after only a few months of therapy. Also, the
reduction of TG/HDL ratio was observed. Results of this study are shown in Tables
III-VI.
Table III
| Patient 1, male, 58 years |
| Time [months] |
TG |
Total Cholesterol |
| |
[mg/dl] |
% |
[mg/dl] |
% |
| 0 |
964 |
|
298 |
|
| 1.5 |
218 |
-77.39% |
153 |
-48.66% |
| 6 |
255 |
-73.55% |
177 |
-40.60% |
| 12 |
315 |
-67.32% |
229 |
-23.15% |
Table IV
| Patient 1, male, 58 years |
| Time [months] |
LDL |
HDL |
TG/HDL |
| |
[mg/dl] |
% |
[mg/dl] |
% |
[mg/dl] |
% |
| 0 |
nm |
|
30.7 |
|
31.40 |
|
| 1.5 |
81.4 |
|
28.0 |
-8.79% |
7.79 |
-75.21% |
| 6 |
87.0 |
|
38.6 |
25.73% |
6.61 |
-78.96% |
| 12 |
118.0 |
|
48.1 |
56.68% |
6.55 |
-79.14% |
Table V
| Patient 2, male, 57 years |
| Time [months] |
TG |
Total Cholesterol |
| |
[mg/dl] |
% |
[mg/dl] |
% |
| 0 |
302 |
|
365 |
|
| 7 |
269 |
-10.93% |
261 |
-28.49% |
| 13 |
160 |
-47.02% |
210 |
-42.47% |
Table VI
| Patient 2, male, 57 years |
| Time [months] |
LDL |
HDL |
TG/HDL |
| |
[mg/dl] |
% |
[mg/dl] |
% |
[mg/dl] |
% |
| 0 |
273.0 |
|
44.0 |
|
6.86 |
|
| 7 |
128.0 |
-53.11% |
79.0 |
79.55% |
3.41 |
-50.39% |
| 13 |
106.8 |
-60.88% |
70.8 |
60.91% |
2.26 |
-67.07% |
Example 3: Anti-atherogenic effect of MNA after a single administration
[0086] The anti-atherogenic effect of MNA after single administration was also investigated
in dyslipidemic patients. The patient was treated with 100 mg MNA. The plasma levels
of TC, TG, and HDL were measured at baseline and after 1 and 3 hours. The level of
LDL was not measured due to high TG level. It has been found that MNA reduced the
TG (596 vs. 479 mg/dl) level between the base-line and after the administration measurements.
The increase of the HDL (24.8 vs. 29.0 mg/dl) was observed after the administration.
The significant reduction of TG/HDL ratio (24.0 vs. 16.5) was observed.
[0087] Results are shown in Table VII.
Table VII
| male, 45 years |
| Time [h] |
TG |
Total Cholesterol |
HDL |
TG/HDL |
| |
[mg/dl] |
% |
[mg/dl] |
% |
[mg/dl] |
% |
[mg/dl] |
% |
| 0 |
596 |
|
186 |
|
24.8 |
|
24.03 |
|
| 1 |
566 |
-5.03%. |
188 |
1.08% |
25.5 |
2.82% |
22.20 |
-7.64% |
| 3 |
479 |
-19.63% |
195 |
4.84% |
29.0 |
16.94% |
16.52 |
-31.27% |
Example 4: MNA efficacy in the rat model of hypertriglyceridemia
[0088] Rats fed a high-fructose diet develop hypertriglyceridemia, insulin resistance and
a mild degree of hypertension abnormalities that mimic metabolic syndrome in humans
(
Boehm and Claudi-Boehm, Scand J Clin Lab Invest Suppl. 2005; 240:3-13). To demonstrate the effect of 1-methylnicotinamide in an animal model of hypertriglyceridemia,
Wistar rats were randomly divided into three groups (see
Bartus et al., Pharmacol Rep. 2005; 57 Suppl:127-37.). One group was fed a control diet (basal AIN93) for 8 weeks, the second was fed
an AIN93 diet supplemented with 60% fructose for 8 weeks, and the third was fed an
AIN93 diet supplemented with 60% fructose that was additionally treated with 100 mg/kg
of MNA for the last 4 weeks (after hypertriglicerydemia fully develops) and was given
to drinking water. At the end of experiments rats were anasthetized, and blood was
withdrawn and anticoagulated. Triglyceride level in plasma was measured by standard
spectophotometric technique using commercially available kits. The experiment was
then repeated with 10 mg/kg of MNA, which gave similar results.
[0089] The results of this experiment, as shown in Figure 1, demonstrate that 1-methylnicotinamide
lowers triglyceride levels in rats fed a hypertriglyceridemic diet.
Example 5: MNA efficacy in the mice model of atheroprotection
Methods
Animals
[0091] Female apoE/LDLR
-/- mice on C57BL/6J background were used for experiments. The experiments were conducted
according to the Guidelines for Animal Care and Treatment of the European Communities
and were approved by the Local Animal Ethics Committee. apoE/LDLR
-/- mice were fed with standard chow. MNA was given for 2 months (100 mg/kg, 4-6 months
old apoE/LDLR
-/- mice) and effects of MNA compared to placebo-treated mice. In each group of mice
(control and MNA) n=5.
Quantitation of atherosclerosis
[0092] Development of atherosclerosis was determined by cross-section (aortic roots), en-face
(whole aorta) analysis and quantified semiautomatically, as described before (
Jawien et al. Eur J Clin Invest; 2006; 36:141-6). Briefly, the heart and whole aorta were washed by phosphate buffered saline, then
the heart and the whole aorta were removed. The heart and ascending aorta were embedded
in OCT compound and snap-frozen. Ten micrometer-thick cryosections were cut and after
fixation in 4% paraformaldehyde were stained with Meyer's hematoxylin and oil red-O
and lesion area was measured semiautomatically in each slide using LSM Image Browser
software.
[0093] The results of this experiment, as shown in Figure 2, demonstrate that 1-methylnicotinamide
slows atherosclerosis progression in apoE/LDLR
-1- mice.
Example 6 : Safety of co-administration of MNA with statins
[0094] A group of 10 patients (4 females and 6 males, ages 38-79) on permanent therapy with
simvastatin (10-20 mg/day) were selected for the study. In addition to simvastatin
each patient received MNA in daily dose of 90 mg/day for six weeks. The clinical chemistry
parameters were monitored during three doctor's visits: two weeks before, just before
and after six weeks of MNA administration. Based on patient examination no negative
effects were observed as a result of MNA co-administration along with simvastatin.
Also clinical chemistry parameters, in particular liver enzymes AST and ALT, creatinine,
urea, glucose and homocysteine were not changed within the measurements accuracy.
[0095] This study demonstrates that MNA co-administration with statins does not result in
any adverse synergistic effects.
Example 7: Long term MNA use in correction of the lipoprotein profile in patients
on permanent therapy with statins
[0096] A group of 8 patients (5 females and 3 males, ages 59-85) on permanent therapy with
simvastatin or atorvastatin (10 - 20 mg/day) were selected for the study. MNA in a
daily dose of 90 -180 mg was co-administrated for a period of 3 to 42 months. The
liporotein levels for each patient were monitored in every 1 to 3 months. In general,
a long term co-administration of MNA resulted in the reduction of triglyceride (TG)
level. The changes varied from patient to patient within a limit -5% to -42%. The
appropriate changes in LDL were within -12% to +17% and in HDL within -6% to +37%.
A particularly remarkable increase in HDL was observed in patients with a low starting
HDL level (<40 mg/dl).
[0097] This example demonstrates that a long term co-administration of MNA with statins
results in a decrease of TG and increase of HDL. Neither patients nor doctors involved
with this study have declared any negative side effects from statin use, which could
be associated with MNA co-administration.