Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/33—Heterocyclic compounds
  • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
  • A61K31/40—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
  • A61K31/4025—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil not condensed and containing further heterocyclic rings, e.g. cromakalim
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
  • A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K9/00—Medicinal preparations characterised by special physical form
  • A61K9/0012—Galenical forms characterised by the site of application
  • A61K9/0019—Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K9/00—Medicinal preparations characterised by special physical form
  • A61K9/0012—Galenical forms characterised by the site of application
  • A61K9/0053—Mouth and digestive tract, i.e. intraoral and peroral administration
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P9/00—Drugs for disorders of the cardiovascular system
  • A61P9/06—Antiarrhythmics

Definitions

• compositions and methods for administration of sulcardine to a subject in need thereof relate to compositions and methods for administration of sulcardine to a subject in need thereof.
• U.S. Patent Nos. 8,541,464 and 8,637,566 (each of which is incorporated herein by reference in its entirety) describe the activity of /V-[4-hydroxy-3,5-bis( 1 - pyrrolidinylmethyl)benzyl]-4-methoxybenzenesulfonamide (hereinafter “sulcardine”) and its pharmaceutically acceptable salts, in addition to various uses and methods of administering sulcardine in therapeutically effective amounts to subjects in need thereof.
• Chen et al. reports the pharmacokinetics profiles of sulcardine in humans when administered orally. See Chen et al. , “Pharmacokinetics, safety, and tolerability of sulcardine sulfate: an open-label, single-dose, randomized study in healthy Chinese subjects”, Fundamental & Clinical Pharmacology . 31 (2017) 120-125.
• compositions for administering sulcardine in therapeutically effective amounts for the treatment of atrial fibrillation or atrial flutter are provided herein.
• compositions for enhanced and safer administration of sulcardine in therapeutically effective amounts are provided herein.
• a pharmaceutical composition comprising sulcardine or a pharmaceutically acceptable salt thereof, wherein the composition produces ECG parameter changes in QRS, PDur, PR, or OTcF, or any combination thereof, of no more than about 25%.
• the pharmaceutical composition is an inhibitor of Na L , INa; and LCa; characterized by ECG parameter changes in: : (i) a reduction or no change in JTpc of NMT of about 15-25 msec; and (ii) no effect or increase in TpTe.
• the pharmaceutical composition results in inhibition of early after depoloarizations (EADs).
• the ECG parameters further comprise heart rate.
• pharmaceutical composition produces a bimodal effect on QTc including prolongation in QTc at lower drug exposure levels (doses) in association with predominantly INa cardiac ion channel inhibition followed by a potential plateauing or decrease in QTc interval at higher drug exposure levels (doses) associated with increasing inhibitory effect on Na L and ICa cardiac ion channels.
• the ECG changes occur prior to, in proximity to or at about Tmax with magnitude of changes reflecting plasma concentrations following Tmax in association with drug distribution into periphery.
• the pharmaceutical composition has no material (clinically meaningful) effect on heart rate or increase or decreases diastolic and/or systolic blood pressure by no more than about 25% prior to, or at Tmax.
• the pharmaceutical composition does not induce 2 nd or 3 rd degree heart block.
• the pharmaceutically acceptable salt is ethane- 1,2-disulfonic acid, naphthalene- 1, 5-disulfonic acid, l-hydroxy-2-naphthoic acid, naphthalene-2-sulfonic acid, dihydro sulfonic acid, hydrochloric acid, or hydrobromic acid.
• the composition comprises 200 mg, 350 mg, 500 mg, or 600 mg of sulcardine, or a pharmaceutically acceptable salt thereof.
• the mg dosages are calculated form the free base of sulcardine.
• the composition is administered to a subject in need thereof. In some embodiments the administration is parenteral administration or oral consumption.
• a pharmaceutical composition comprising sulcardine or a pharmaceutically acceptable salt thereof, wherein the composition produces a mean average plasma profile characterized by a Cmax for the composition in a subject, after administering 200 mg of the compound, of at least about 1,500 ng/mL at about the Tmax, and at most 25% of Cmax at about 1.0 hours after administration.
• a pharmaceutical composition comprising sulcardine or a pharmaceutically acceptable salt thereof, wherein the composition produces a mean average plasma profile characterized by a Cmax for the compound in a subject, after administering 350 mg of the compound, of at least about 3,000 ng/mL at about the Tmax, and at most 25% of Cmax at about 1.0 hours after administration.
• a pharmaceutical composition comprising sulcardine or a pharmaceutically acceptable salt thereof, wherein the composition produces a mean average plasma profile characterized by a Cmax for the compound in a subject, after administering 500 mg of the compound, of at least about 4,000 ng/mL at about Tmax, and at most 25% of Cmax at about 1.0 hours after administration.
• a pharmaceutical composition comprising sulcardine or a pharmaceutically acceptable salt thereof, wherein the composition produces a mean average plasma profile characterized by a Cmax for the compound in a subject, after administering 600 mg of the compound, of at least about 5,500 ng/mL at about Tmax, and at most 25% of Cmax at about 1.0 hours after administration.
• a method of treating atrial fibrillation (AF) or atrial flutter comprising administering to a human subject in need thereof sulcardine, or a pharmaceutically acceptable salt thereof, resulting in robust, albeit temporary, increase of QRS, PDur, PR, changes in QTc attendant with a reduction or no change in JTpc and no effect or increase in TpTe.
• these changes in ECG parameters are associated with rapid accumulation of the drug in the bloodstream through intravenous infusion or other parenteral routes of administration combined with rapid inherent redistribution of the drug from the bloodstream and highly vascularized organs such as the heart to secondary compartments.
• a method of treating atrial fibrillation (AF) or atrial flutter comprising administering to a human subject in need thereof, sulcardine or a pharmaceutically acceptable salt thereof, resulting in: (i) an increases of less than about 25% in QRS, PDur, PR, and QTcF; (ii) a reduction of less than 25 msec or no change in JTpc; and/or (iii) no effect or increase in TpTe.
• the composition produces a change in QTcF interval that does not increase by more than about 20% after administering of the pharmaceutical composition.
• the composition produces an increased in QTcF interval from about 5% to about 20% after the administration.
• the plasma concentration is decreases by at least about 75% within about 1 hour after administration.
• a method of treating atrial fibrillation (AF) or atrial flutter comprising administering to a human subject in need thereof sulcardine, or a pharmaceutically acceptable salt thereof, wherein an amount of sulcardine, or a pharmaceutically acceptable salt thereof is sufficient to achieve a Tmax of plasma concentration of sulcardine, or a pharmaceutically acceptable salt thereof of about less than 2.0 hours.
• sulcardine or a pharmaceutically acceptable salt thereof is administered over a period of less than about 1 hour.
• sulcardine or a pharmaceutically acceptable salt thereof is administered over a period of about 30 minutes.
• sulcardine or a pharmaceutically acceptable salt thereof is administered at a rate that does not produce an arrhythmia or a clinically significant change in heart rate or blood pressure.
• the AF is acute AF. In some embodiments, the AF is paroxysmal AF. In some embodiments, the AF is recurring AF. In some embodiments, the treatment is for atrial flutter.
• sulcardine (free base form) has a chemical name of /V-[4-hydroxy-3,5-bis( 1 -pyrrolidinylmethyl)benzyl]-4- methoxybenzenesulfonamide, and has the following structure:
• the pharmaceutically acceptable salt is ethane- 1,2-disulfonic acid, naphthalene- 1, 5-disulfonic acid, l-hydroxy-2-naphthoic acid, naphthalene-2-sulfonic acid, dihydro sulfonic acid, hydrochloric acid, or hydrobromic acid.
• the pharmaceutically acceptable salt is ethane- 1,2-disulfonic acid.
• the pharmaceutically acceptable salt is naphthalene-1, 5-disulfonic acid.
• the pharmaceutically acceptable salt is l-hydroxy-2-naphthoic acid.
• the pharmaceutically acceptable salt is naphthalene-2-sulfonic acid.
• the pharmaceutically acceptable salt is hydrochloric acid or hydrobromic acid.
• the pharmaceutically acceptable salt is sulcardine sulfate.
• sulcardine sulfate has the following structure:
• the sulcardine sulfate is sulcardine sulfate trihydrate.
• Cmax refers to maximum plasma concentration
• Treat,” “treatment,” and “treating” are employed in this description to refer to administering a pharmaceutical composition or formulation for prophylactic and/or therapeutic purposes.
• the term “therapeutic treatment” refers to administering treatment to a patient already suffering from a condition such as arrhythmia.
• treating is the administration to a mammal of therapeutically effective amounts of an anti -arrhythmic agent.
• a “subject” of treatment is a prokaryotic or a eukaryotic cell, a tissue culture, a tissue or an animal, e.g., a mammal, including a human.
• Non-human animals subject to treatment include, for example, a simian, a murine, a canine, a leporid, such as a rabbit, livestock, sport animals, and pets.
• a “patient” is a human subject.
• a ’’treatment population refers to a group of clinically typical patients receiving the treatment and a typical response that would be expected from said patents.
• an “anti-arrhythmic agent,” as used herein, refers to a molecule having a therapeutic effect of treating arrhythmia or alleviating associated symptoms in a subject.
• arrhythmias include supraventricular tachyarrhythmia such as atrial fibrillation, premature ventricular contractions, ventricular tachycardia, and ventricular fibrillation.
• an anti -arrhythmic agent is sulcardine, or a pharmaceutically acceptable salt thereof.
• an anti-arrhythmic agent is sulcardine sulfate.
• a pharmaceutically acceptable salt of sulcardine can be the active agent in a formulation useful for treating arrhythmia.
• sulcardine salts are: (A) inorganic acid salts such as acetate, borate, bicarbonate, sulfate, hydrochloride, bromides, chlorides, iodide, hydrobromide, hydroiodide, nitrate, phosphate, diphosphate, and fluorophosphate salts; (B) organic acid salts such as amsonate (4,4-diaminostilbene-2,2- disulfonate), bitartrate, butyrate, citrate, calcium edetate, camsylate, edisylate, estolate, esylate, glutamate, gluconate, gluceptate, lactate, lactobionate, laurate, malate, maleate, mandelate, methylbromide, methylnitrate, methyl s
• phrases “effective amount,” “therapeutically effective amount,” and “pharmaceutically effective amount” denote an amount of an active agent, such as an anti- arrhythmic agent as presently disclosed, that has a therapeutic effect.
• the doses of the active agent which are useful in treatment are therapeutically effective amounts.
• a therapeutically effective amount is an amount of the active agent that produces the desired therapeutic effect, as judged by clinical trial results and/or model animal studies.
• the active agent is administered in a pre-determined dose; hence, a therapeutically effective amount would be an amount of the dose administered. This amount also can depend upon the patient's height, weight, sex, age and medical history.
• a “carrier” or “excipient” is a compound or material used to facilitate administration of the compound, for example, to control the release and/or bioavailability of the compound.
• Solid carriers include, e.g., starch, lactose, dicalcium phosphate, sucrose, and kaolin.
• Liquid carriers include, e.g., sterile water, saline, buffers, non-ionic surfactants, and edible oils such as oil, peanut and sesame oils.
• various adjuvants such as are commonly used in the art may be included.
• compositions are described, e.g., in Gilman et al. (Eds.) (1990); GOODMAN AND GILMAN'S: THE PHARMACOLOGICAL BASIS OF THERAPEUTICS, 8th Ed., Pergamon Press.
• pharmaceutically acceptable carrier and “pharmaceutically acceptable excipient” can note any and all solvents, dispersion media, coatings, isotonic and absorption delaying agents and the like. The use of such media and agents for pharmaceutically active substances is well known in the art. Except insofar as any conventional media or agent is incompatible with the active ingredient, its use in the therapeutic compositions is contemplated. Supplementary active ingredients can also be incorporated into the compositions. Suitable pharmaceutically acceptable excipients include, but are not limited to, buffers, diluents, tonicity agents, stabilizers, antioxidants, preservatives and mixtures thereof.
• buffer denotes a pharmaceutically acceptable excipient, which stabilizes the pH of a pharmaceutical preparation.
• Suitable buffers are known in the art and can be found in the literature.
• Pharmaceutically acceptable buffers comprise but are not limited to glycine- buffers, histidine-buffers, citrate-buffers, succinate-buffers and phosphate-buffers.
• the pH can be adjusted at a value from about 2 to about 9, or alternatively from about 2.5 to about 7, or alternatively from about 3 to about 5 or alternatively about 3 with an acid or a base known in the art, e.g., succinic acid, hydrochloric acid, acetic acid, phosphoric acid, sulfuric acid and citric acid, sodium hydroxide and potassium hydroxide.
• an acid or a base known in the art, e.g., succinic acid, hydrochloric acid, acetic acid, phosphoric acid, sulfuric acid and citric acid, sodium hydroxide and potassium hydroxide.
• Suitable buffers include, without limitation, glycine buffer, histidine buffer, 2- morpholinoethanesulfonic acid (MES), cacodylate, phosphate, acetate, succinate, and citrate.
• the buffer is a glycine buffer.
• the buffer is a histine buffer.
• the concentration of the buffer can be between about 1 mM and about 100 mM, or alternatively about 2 mM to about 40 mM, or alternatively about 5 mM to about 20 mM.
• the term “average” as used herein, refers to a value that is an average of values derived from a variable amount of patients and/or subjects given the same treatment and/or compound.
• mean average refers to a value that is the sum of the values from the variable population of patients divided by the number of patients in the population given the same treatment and/or compound.
• the goal of pharmacologic therapy for the treatment of atrial fibrillation depends on whether one is treating acute or paroxysmal AF, to induce rapid cardioversion to a normal sinus rhythm, or whether one seeks to prevent AF recurrence with prolonged administration of the drug.
• acute or paroxysmal AF in patients who do not have a history of frequent recurrence and perhaps to some extent in recurrent AF, although recurrent AF is more resistant to acute cardioversion by any means, the goal is to rapidly pharmacologically induce cardioversion of a patient who currently is suffering from an AF episode, typically with the administration of a single drug dose or with administration of a limited number of doses.
• prevention of recurrent AF episodes may require chronic prophylactic treatment.
• the efficacy of sulcardine and its pharmaceutically acceptable salts is believed to be a function of peak plasma concentration, requiring the maintenance of a high plasma level for a minimal period, for example, of minutes to less than one hour in duration, to afford time for cardioversion to a normal sinus rhythm; after that time, the patient should remain in normal sinus rhythm without the need for continued therapeutic plasma levels of drug, unless some other precipitating event causes a future recurrence of the arrhythmia.
• These types of patients who have no or only limited prior history of AF episodes have lower risk of recurrence and are typically more successfully cardioverted regardless of the means of intervention; hence, continued drug therapy following cardioversion is not indicated.
• the goal is to achieve rather high blood levels for a period of minutes out to an hour or two, allowing the heart sufficient time to respond to drug therapy and slip back into a normal sinus rhythm.
• compositions and methods for administration of sulcardine, or a pharmaceutically acceptable salt thereof, in a subject which allows for a pharmacokinetic/pharmacodynamics (PK/PD) profile suitable for treating AF, e.g., acute or paroxysmal AF.
• PK/PD profile is achieved by one or more of the following factors: IV administration for fast Tmax and high Cmaxj rapid redistribution to lower arrythmia risk; pan-electrophysiologic effect on ECG; and opposing QTc/TpTe and JTpc profile presenting lower TdeP risk.
• sulcardine, or a pharmaceutically acceptable salt thereof can be administered at certain dosages and in a certain route which are quickly effective when measured using certain pharmacokinetic and pharmacodynamics parameters, but also lose effect quickly. Therefore, sulcardine, or a pharmaceutically acceptable salt thereof, can be more safely and effectively administered to subjects using specific dosages, and a specific route of administration, which will also result in beneficial outcomes.
• a pharmaceutical composition comprising sulcardine, or a pharmaceutically acceptable salt thereof, wherein the composition produces ECG parameter changes including: increases in heart rate (HR), QRS, PDur, PR, and QTcF; reduction of JTp; and no effect or increase in TpTe.
• the pharmaceutical composition comprising sulcardine, or a pharmaceutically acceptable salt thereof produces dose proportional ECG parameter changes including: increases in QRS, PDur, PR, QTcF; reduction of JTp; and no effect or increase in TpTe.
• the pharmaceutical composition comprising sulcardine or a pharmaceutically acceptable salt thereof produces dose proportional ECG parameter changes including: increases in QRS, PDur, PR, and TpTe.
• the pharmaceutical composition comprising sulcardine or a pharmaceutically acceptable salt thereof produces dose proportional ECG parameter changes including: reduction of JTp.
• the pharmaceutical composition comprising sulcardine or a pharmaceutically acceptable salt thereof produces dose proportional ECG parameter changes including: reduction of JTp. In some embodiments, the pharmaceutical composition comprising sulcardine, or a pharmaceutically acceptable salt thereof, produces dose proportional ECG parameter changes including: no effect or prolonged TpTe interval. In some embodiments, the pharmaceutical composition comprising sulcardine, or a pharmaceutically acceptable salt thereof, produces dose proportional ECG parameter changes including: no effect or prolonged TpTe interval in combination with a reduction of JTp and prolongation in QTc
• the pharmaceutical composition comprising sulcardine, or a pharmaceutically acceptable salt thereof produces one or more ECG parameter changes comprising increases in QRS, PDur, PR, and QTcF of no more than about 25%.
• the ECG parameter changes comprise increases in heart rate, and one or more of QRS, PDur, PR, and QTcF of no more than about 25%.
• the sulcardine produced ECG parameter changes multiple ECG parameters.
• the pharmaceutical composition comprising sulcardine, or a pharmaceutically acceptable salt thereof produces ECG parameter changes comprising increases in HR of no more than about 25%.
• the pharmaceutical composition comprising sulcardine, or a pharmaceutically acceptable salt thereof, produces one or more ECG parameter changes comprising increases in HR, QRS, PDur, PR, and QTcF of about 0.5% to about 20%.
• the ECG parameter changes comprising increases in heart rate, QRS, PDur, PR, and QTcF of about 1.0% to about 15%, about 1.0% to about 10%.
• the increases in heart rate, QRS, PDur, PR, and QTcF about 0.5%, 1.0%, 1.5%, 2.0%, 2.5%, 3.0%, 3.5%, 4.0%, 4.5%, 5.0%, 5.5%, 6.0%, 6.5%, 7.0%, 7.5%, 8.0%, 8.5%, 9.0%, 9.5%, 10%, 10.5%, 11%, 11.5%, 12%, 12,5%, 13%, 13,5%, 14%, 14.5%, 15%, 15.5%, 16%, 16.5%, 17%, 17.5%, 18%, 18.5%, 19%, 19.5%, 20%, 20.5%, 21%, 21.5%, 22%, 22.5%, 23%, 23.5%, 24%, or 24.5%; or any percentage change therein.
• the increase is not greater than about 25% or about 30%.
• the pharmaceutical composition is an inhibitor of Na L (late sodium channel), in addition to being an inhibitor of INa (fast sodium channel) and LCa (L-type calcium channel) in the heart.
• ECG parameter changes comprise: (i) no change or a reduction of JTpc of NMT of about 15-25 msec; and (ii) no effect or an increase in TpTe.
• the ECG parameter changes comprise inhibition of early after depolarization (EADs).
• the ECG parameter changes comprise an increase in QTc interval at lower concentration doses of sulcardine, or a pharmaceutically acceptable salt thereof, followed by a subsequent attenuation in prolongation or shortening in QTc. This is often a result increased Na L and LCa channel inhibition.
• the ECG parameter maximal changes occur prior to, or at Tmax.
• the pharmaceutical composition has no material effect on heart rate or increases heart rate by no more than about 25%, prior to, or at about Tmax.
• the pharmaceutical composition has no material effect on heart rate or increases heart rate by no more than about 25%, prior to, or in proximity to Tmax.
• the pharmaceutical composition has no material effect on heart rate or increases or decreases diastolic and/or systolic blood pressure by no more than about 25%, prior to, or at about Tmax.
• the pharmaceutical composition does not induce 2 nd or 3 rd degree heart block.
• sulcardine or a pharmaceutically acceptable salt thereof the administration range is from 20 to 1000 mg. In some embodiments, the range is from 20 to 600 mg. In one embodiment, the range is from 100 to 600 mg. In one embodiment, sulcardine or a pharmaceutically acceptable salt thereof, is administrated at a dosage of about 200 mg, 350 mg, 500 mg, or 600 mg. In some embodiments, sulcardine or a pharmaceutically acceptable salt thereof, is administrated at a dosage of about 200 mg, In some embodiments, sulcardine or a pharmaceutically acceptable salt thereof, is administrated at a dosage of about 350 mg.
• sulcardine or a pharmaceutically acceptable salt thereof is administrated at a dosage of about 500 mg. In some embodiments, sulcardine or a pharmaceutically acceptable salt thereof, is administrated at a dosage of about 600 mg.
• Dosages are calculated from the free- base (i.e. without an acid counter ion) form of sulcardine.
• the pharmaceutically acceptable salt in the composition is sulcardine sulfate.
• the pharmaceutical composition provided herein further comprises a pharmaceutically acceptable excipient.
• the pharmaceutical composition produces a mean average plasma profile characterized by a Cmax for sulcardine in a subject, after administering 200 mg of sulcardine, from about 1,000 ng/mL to about 2,000 ng/mL, or any range therein, at about Tmax, and at most 25% of Cmax at about 1.0 hours after administration.
• the pharmaceutical composition produces a mean average plasma profile characterized by a Cmax for sulcardine in a subject, after administering 200 mg of sulcardine, of at least about 1,500 ng/mL at about Tmax, and at most 25% of Cmax at about 1.0 hours after administration.
• the plasma profile is characterized by a mean average Cmax of at least about 1,000 ng/mL; 1,100 ng/mL; 1,200 ng/mL; 1,300 ng/mL; or 1,400 mg/mL at about Tmax and at most 25% of Cmax at about 1.0 hours after administration.
• the composition produces a mean average plasma profile characterized by a Cmax for the compound (sulcardine) in a subject, after administering 350 mg of the compound (sulcardine), from about 2,000 ng/mL to about 3,500 ng/mL; or any range therein; at about Tmax, and at most 25% of Cmax at about 1.0 hours after administration.
• the pharmaceutical composition produces a mean average plasma profile characterized by a Cmax for the compound (sulcardine) in a subject, after administering 350 mg of the compound (sulcardine), of at least about 3,000 ng/mL at about Tmax, and at most 25% of Cmax at about 1.0 hours after administration.
• the plasma profile is characterized by a mean average Cmax of at least about 2,500 ng/mL;
• the composition produces an mean average plasma profile characterized by a Cmax for the compound (sulcardine) in a subject, after administering 500 mg of the compound (sulcardine), from about 3,500 ng/mL to about 5,000 ng/mL, or any range therein, at about Tmax, and at most 25% of Cmax at about 1.0 hours after administration.
• the pharmaceutical composition produces a mean average plasma profile characterized by a Cmax for the compound (sulcardine) in a subject, after administering 500 mg of the compound (sulcardine), of at least about 4,000 ng/mL at about Tmax, and at most 25% of Cmax at about 1.0 hours after administration.
• the plasma profile is characterized by a mean average Cmax of at least about 3,500 ng/mL;
• the pharmaceutical composition produces an average plasma profile characterized by a mean average Cmax for the compound (sulcardine) in a subject, after administering 600 mg of the compound (sulcardine), from about 5,000 ng/mL to about 6,000 ng/mL, or any range therein, at about Tmax, and at most 25% of Cmax at about 1.0 hours after administration.
• the pharmaceutical composition produces an mean average plasma profile characterized by a Cmax for the compound (sulcardine) in a subject, after administering 600 mg of the compound (sulcardine), of at least about 5,500 ng/mL at about Tmax, and at most 25% of Cmax at about 1.0 hours after administration.
• the plasma profile is characterized by a mean average Cmax of at least about 5,000 ng/mL;
• a method of administering a pharmaceutical composition comprising sulcardine or a pharmaceutically acceptable salt thereof provided herein to a subject in need thereof, wherein a panoply of ECG parameters are changed in the subject.
• QRS, PDur, PR, QTcF and TpTe are increased in the subject, and JTp is reduced in the subject.
• QRS, PDur, PR, TpTe, and QTcF are increased, and JTp is reduced.
• JTp is not changed.
• a method of treating atrial fibrillation (AF) or atrial flutter comprising administering to a human subject in need thereof sulcardine, or a pharmaceutically acceptable salt thereof, resulting in ECG parameters comprising an increase in QRS, PDur, PR, QTcF, or any combination thereof, of no more than about 25%.
• the ECG parameters further comprise an increase in heart rate (HR) of no more than about 25%.
• the ECG parameters further comprise a decrease of no more than about 25 msec in JTp; and no change or an increase in of no more than about 10 msec in TpTe. In some embodiments, JTp is not changed.
• the increases in HR, QRS, PDur, PR, QTcF, or any combination thereof is from about 0.5% to about 20%.
• the increases is about 0.5%, 1.0%, 1.5%, 2.0%, 2.5%, 3.0%, 3.5%, 4.0%, 4.5%, 5.0%, 5.5%, 6.0%, 6.5%, 7.0%, 7.5%, 8.0%, 8.5%, 9.0%, 9.5%, 10%, 10.5%, 11%, 11.5%, 12%, 12,5%, 13%, 13,5%, 14%, 14.5%, 15%, 15.5%, 16%, 16.5%, 17%, 17.5%, 18%, 18.5%, 19%, 19.5%, 20%, 20.5%, 21%, 21.5%, 22%, 22.5%, 23%, 23.5%, 24%, or 24.5%; or any percentage change therein
• the reduction in JTPc is from about 0.5% to about 10%. In some embodiments, the reduction in JTpc is about 0.5%, 1.0%, 1.5%, 2.0%, 2.5%, 3.0%, 3.5%, 4.0%, 4.5%, 5.0%, 5.5%, 6.0%, 6.5%, 7.0%, 7.5%, 8.0%, 8.5%, 9.0%, 9.5%, or 10%; or any percentage change therein.
• the reduction in JTPc is from about 10 msec to about 25 msec. In some embodiments, the reduction in JTpc is about 0.5 msec, 1.0 msec, 1.5 msec, 2.0 msec,
• the change in JTpc of NMT is about 15 msec.
• the increase in TpTc is from about 0.5% to about 10msec In some embodiments, the increase in TpTe is about 0.5%, 1.0%, 1.5%, 2.0%, 2.5%, 3.0%, 3.5%, 4.0%, 4.5%, 5.0%, 5.5%, 6.0%, 6.5%, 7.0%, 7.5%, 8.0%, 8.5%, 9.0%, 9.5%, or 10%; or any percentage change therein.
• the increase in TpTc is from about 0.5msec to about 10msec In some embodiments, the increase in TpTe is about 0.5 msec, 1.0 msec, 1.5 msec, 2.0 msec, 2.5 msec, 3.0 msec, 3.5 msec, 4.0 msec, 4.5 msec, 5.0 msec, 5.5 msec, 6.0 msec, 6.5 msec, 7.0 msec, 7.5 msec, 8.0 msec, 8.5 msec, 9.0 msec, 9.5 msec, or 10 msec; or any percentage change therein. In some embodiments, there is no change in TpTe.
• the QTcF interval in a human subject is increased by from about no more than 60 msec at the end of the administration. In some embodiments, the QTcF interval in a human subject is increased by from about 10 msec to about340 msec at the end of the administration. In some embodiments, the QTcF interval in a human subject is increased by from about 30 msec to about 60 msec at the end of the administration. In some embodiments, the QT interval is increased by no more than about 50 msec. In some embodiments, the QTcF interval is increased by no more than about 40 msec. In some embodiments, the QTcF interval is increased by no more than about 30 msec. In some embodiments, the QTcF interval is increased by no more than about 20 msec. In some embodiments, the QTcF interval is increased by no more than about 10 msec.
• the composition produces a change in QTcF interval that does not deviate by more than about 20% after administering of the composition. In some embodiments, the composition produces an increased in QTcF interval from about 5% to about 20% after the administration of the composition.
• sulcardine, or a pharmaceutically acceptable salt thereof is administered at a dose range of from about 20 to about 1000 mg (free-base equivalent). In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose range of from about 20 to about 600 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose range of from about 60 to about 600 mg. In some embodiments, sulcardine or a pharmaceutically acceptable salt thereof, is administered at a the dose from about 100 to about 600 mg. In some embodiments, sulcardine or a pharmaceutically acceptable salt thereof, is administered at a the dose from 200 to 500 mg.
• sulcardine or a pharmaceutically acceptable salt thereof is administered at a the dose of about 200 mg, 350 mg, 500 mg, or 600 mg. In some embodiments, sulcardine or a pharmaceutically acceptable salt thereof, is administered at a the dose of about 200 mg. In some embodiments, sulcardine or a pharmaceutically acceptable salt thereof, is administered at a the dose of about 350 mg. In some embodiments, sulcardine or a pharmaceutically acceptable salt thereof, is administered at a the dose of about 500 mg. In some embodiments, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose range of from about 100 mg to about 1,000 mg.
• sulcardine, or a pharmaceutically acceptable salt thereof is administered at a dose range of from about 100 mg to about 200 mg, about 100 mg to about 300 mg, about 100 mg to about 400 mg, about 100 mg to about 500 mg, about 100 mg to about 600 mg, about 100 mg to about 700 mg, about 100 mg to about 800 mg, about 100 mg to about 900 mg, about 100 mg to about 1,000 mg, about 200 mg to about 300 mg, about 200 mg to about 400 mg, about 200 mg to about 500 mg, about 200 mg to about 600 mg, about 200 mg to about 700 mg, about 200 mg to about 800 mg, about 200 mg to about 900 mg, about 200 mg to about 1,000 mg, about 300 mg to about 400 mg, about 300 mg to about 500 mg, about 300 mg to about 600 mg, about 300 mg to about 700 mg, about 300 mg to about 800 mg, about 300 mg to about 900 mg, about 300 mg to about 1,000 mg, about 400 mg to about 500 mg, about 300 mg to about 600 mg, about 300 mg to about 700 mg, about 300 mg to about 800 mg, about 300 mg to
• sulcardine, or a pharmaceutically acceptable salt thereof is administered at a dose range of from about 100 mg, about 200 mg, about 300 mg, about 400 mg, about 500 mg, about 600 mg, about 700 mg, about 800 mg, about 900 mg, or about 1,000 mg. In some embodiments, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose range of from at least about 100 mg, about 200 mg, about 300 mg, about 400 mg, about 500 mg, about 600 mg, about 700 mg, about 800 mg, or about 900 mg.
• sulcardine, or a pharmaceutically acceptable salt thereof is administered at a dose range of from at most about 200 mg, about 300 mg, about 400 mg, about 500 mg, about 600 mg, about 700 mg, about 800 mg, about 900 mg, or about 1,000 mg.
• a method of treating atrial fibrillation (AF) comprising parenteral administering to a human subject in need thereof sulcardine, or a pharmaceutically acceptable salt thereof, at a dose of about 200 mg, 350 mg, 500 mg, or 600 mg.
• the sulcardine, or a pharmaceutically acceptable salt or solvate thereof is administered at a dose of about 200 mg.
• the sulcardine, or a pharmaceutically acceptable salt or solvate thereof is administered at a dose of about 350 mg. In some embodiments, the sulcardine, or a pharmaceutically acceptable salt or solvate thereof is administered at a dose of about 500 mg. In some embodiments, the sulcardine, or a pharmaceutically acceptable salt or solvate thereof is administered at a dose of about 600 mg.
• sulcardine or a pharmaceutically acceptable salt thereof is characterized by PK/PD parameter changes.
• Sulcardine produces a plasma profile including a dose proportional Cmax in a relatively short Tmax, about equivalent to the time of the end of intravenous infusion or at 30 mins for other parenteral routes. This is followed by a rapid decrease of the compound from the plasma.
• the plasma concentration of the sulcardine is decreased by at least 75% within about 1 hour after administration.
• a method of treating atrial fibrillation (AF) or atrial flutter comprising administering to a human subject in need thereof, sulcardine or a pharmaceutically acceptable salt thereof, wherein an amount of sulcardine is sufficient to achieve a Tmax of plasma concentration of sulcardine at about less than 2.0 hours. In some embodiments, the amount of sulcardine is sufficient to achieve a Tmax of plasma concentration of sulcardine from about 0.5 to about 2.0 hours.
• the ECG changes occur prior to, or at about Tmax. In some embodiments, the ECG changes occur prior to, or in proximity to Tmax.
• provided herein is a method of administering a composition provided herein to a subject in need thereof, whereby the compound (sulcardine) produces an average plasma profile characterized by a mean average Cmax for the compound (sulcardine) in a subject, after administering 200 mg of the compound, from about 1,000 ng/mL to about 2,000 ng/mL at about 0.5 hours after administration, and at most 25% of Cmax at about 1.0 hours after administration.
• a method of administering a pharmaceutical composition comprising sulcardine or a pharmaceutically acceptable salt thereof, wherein the composition produces a mean average plasma profile characterized by a Cmax for the compound in a subject, after administering 200 mg of the composition, of at least about 1,500 ng/mL at about 0.5 hours after administration, and at most 25% of Cmax at about 1.0 hours after administration.
• provided herein is a method of administering a composition provided herein to a subject in need thereof, whereby the compound (sulcardine) produces a mean average plasma profile characterized by a Cmax for the compound in a subject, after administering 350 mg of the composition, from about 2,000 ng/mL to about 3,000 ng/mL at about 0.5 hours after administration, and at most 25% of Cmax at about 1.0 hours after administration.
• a method of administering a pharmaceutical composition comprising sulcardine or a pharmaceutically acceptable salt thereof, wherein the composition produces a mean average plasma profile characterized by a Cmax for the compound in a subject, after administering 350 mg of the compound (sulcardine), of at least about 3,000 ng/mL at about 0.5 hours after administration, and at most 25% of Cmax at about 1.0 hours after administration.
• provided herein is a method of administering a composition provided herein to a subject in need thereof, whereby the compound (sulcardine) produces a mean average plasma profile characterized by a Cmax for the compound (sulcardine) in a subject, after administering 500 mg of the compound (sulcardine), from about 4,000 ng/mL to about 5,000 ng/mL at about 0.5 hours after administration, and at most 25% of Cmax at about 1.0 hours after administration.
• a method of administering a pharmaceutical composition comprising sulcardine or a pharmaceutically acceptable salt thereof, wherein the compound (sulcardine) produces a mean average plasma profile characterized by a Cmax for the compound (sulcardine) in a subject, after administering 500 mg of the compound, of at least about 4,000 ng/mL at about 0.5 hours after administration, and at most 25% of Cmax at about 1.0 hours after administration.
• provided herein is a method of administering a composition provided herein to a subject in need thereof, whereby the compound (sulcardine) produces a mean average plasma profile characterized by a Cmax for the compound (sulcardine) in a subject, after administering 600 mg of the compound, from about 5,000 ng/mL to about 6,000 ng/mL at about 0.5 hours after administration, and at most 25% of Cmax at about 1.0 hours after administration.
• a method of administering a pharmaceutical composition comprising sulcardine or a pharmaceutically acceptable salt thereof, wherein the compound (sulcardine) produces a mean average plasma profile characterized by a Cmax for the compound in a subject, after administering 600 mg of the compound (sulcardine), of at least about 5,500 ng/mL at about 0.5 hours after administration, and at most 25% of Cmax at about 1.0 hours after administration.
• a method of administering a pharmaceutical composition comprising sulcardine or a pharmaceutically acceptable salt thereof, wherein the compound (sulcardine) produces a mean average plasma profile characterized by an AUC for the compound in a subject, after administering 200 mg of the compound, of at least about 1,200 ng.h/mL at about 0.5 hours after administration.
• a method of administering a pharmaceutical composition comprising sulcardine or a pharmaceutically acceptable salt thereof, wherein the compound (sulcardine) produces a mean average plasma profile characterized by an AUC for the compound in a subject, after administering 350 mg of the compound, of at least about 2,800 ng.h /mL at about 0.5 hours after administration.
• a method of administering a pharmaceutical composition comprising sulcardine or a pharmaceutically acceptable salt thereof, wherein the compound (sulcardine) produces a mean average plasma profile characterized by an AUC for the compound in a subject, after administering 500 mg of the compound, of at least about 4,000 ng.h/mL at about 0.5 hours after administration.
• a method of administering a pharmaceutical composition comprising sulcardine or a pharmaceutically acceptable salt thereof, wherein the compound (sulcardine) produces a mean average plasma profile characterized by an AUC for the compound in a subject, after administering 600 mg of the compound, of at least about 5,200 ng.h/mL at about 0.5 hours after administration.
• Tmax is at about 30 minutes.
• sulcardine, or a pharmaceutically acceptable salt thereof is administered at a dose of from about 60 mg to about 800 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of from about 180 mg to about 800 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of from about 360 mg to about 800 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of from about 400 mg to about 800 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of from about 450 mg to about 750 mg.
• sulcardine, or a pharmaceutically acceptable salt thereof is administered at a dose of from about 500 mg to about 700 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of from about 550 mg to about 650 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of about 600 mg.
• sulcardine, or a pharmaceutically acceptable salt thereof is administered at a dose of no less than about 60 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of no less than about 180 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of no less than about 360 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of no less than about 400 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of no less than about 450 mg.
• sulcardine, or a pharmaceutically acceptable salt thereof is administered at a dose of no less than about 500 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of no less than about 550 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of no less than about 600 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of no less than about 650 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of no less than about 700 mg.
• sulcardine, or a pharmaceutically acceptable salt thereof is administered at a dose of no less than about 750 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of no less than about 800 mg.
• sulcardine, or a pharmaceutically acceptable salt thereof is administered at a dose of about 60 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of about 180 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of about 360 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of about 400 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of about 450 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of about 500 mg.
• sulcardine, or a pharmaceutically acceptable salt thereof is administered at a dose of about 550 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of about 600 mg. In one embodiment, sulcardine, or a pharmaceutically acceptable salt thereof, is administered at a dose of about 650 mg.
• the dosages of sulcardine may also include about 60 mg, about 70 mg, about 80 mg, about 90 mg, about 100 mg, about 110 mg, about 120 mg, about 130 mg, about 140 mg, about 150 mg, about 160 mg, about 170 mg, about 180 mg, about 190 mg, about 200 mg, about 210 mg, about 220 mg, about 230 mg, about 240 mg, about 250 mg, about 260 mg, about 270 mg, about 280 mg, about 290 mg, about 300 mg, about 310 mg, about 320 mg, about 330 mg, about 340 mg, about 350 mg, about 360 mg, about 370 mg, about 380 mg, about 390 mg, about 400 mg, about 410 mg, 420 mg, 430 mg, 440 mg, 450 mg, 460 mg, 470 mg, 480 mg, 490 mg, 500 mg, 510 mg, 520 mg, 530 mg, 540 mg, 550 mg, 560 mg, 570 mg, 580 mg, 590 mg, and dosage
• the dosages may also include about 610 mg, 620 mg, 630 mg, 640 mg, 650 mg, 660 mg, 670 mg, 680 mg, 690 mg, 700 mg, 710 mg, 720 mg, 730 mg, 740 mg, 750 mg, 760 mg, 770 mg, 780 mg, 790 mg, 800 mg, and dosages in between.
• the dosages of sulcardine may also include about 850 mg, 900 mg, 950 mg and 1,000 mg if it can be shown that such dosages are both safe and have the intended effect.
• sulcardine, or a pharmaceutically acceptable salt thereof is administered at a dose of about 200 mg, 350 mg, 500 mg or about 600 mg, and dosages in between.
• sulcardine, or a pharmaceutically acceptable salt thereof is administered at a dose of from about 200 mg.
• sulcardine, or a pharmaceutically acceptable salt thereof is administered at a dose of from about 350 mg.
• sulcardine, or a pharmaceutically acceptable salt thereof is administered at a dose of from about 500 mg.
• sulcardine, or a pharmaceutically acceptable salt thereof is administered at a dose of from about 600 mg.
• sulcardine or a pharmaceutically acceptable salt thereof is administered.
• sulcardine sulfate is administered.
• sulcardine or a pharmaceutically acceptable salt thereof is administered by parenteral administration.
• the parenteral administration is intravenous infusion, or intra muscular or subcutaneous injection.
• sulcardine or a pharmaceutically acceptable salt thereof is administered by intravenous infusion.
• sulcardine or a pharmaceutically acceptable salt thereof is administered by intramuscular injection.
• sulcardine or a pharmaceutically acceptable salt thereof is administered orally.
• sulcardine, or a pharmaceutically acceptable salt thereof is administered as a solution with a concentration of about 50 mg/mL.
• the solution is diluted to about 8 mg/ml or less to deliver about 200-500 mg dose in a volume of 50 ml to a patient.
• sulcardine, or a pharmaceutically acceptable salt thereof is administered over a period of from about 15 minutes to about 2 hours. In some embodiments, sulcardine, or a pharmaceutically acceptable salt thereof, is administered over a period of from about 30 minutes to about 1 hour. In some embodiments, sulcardine, or a pharmaceutically acceptable salt thereof, is administered over a period of less than about 1 hour. In some embodiments, sulcardine, or a pharmaceutically acceptable salt thereof, is administered over a period of about 30 minutes. In some embodiments, sulcardine, or a pharmaceutically acceptable salt thereof, is administered over a period of about 15 minutes.
• sulcardine or a pharmaceutically acceptable salt thereof is administered at a rate that produces a normal sinus rhythm without producing an arrhythmia or a clinically significant change in heart rate of blood pressure. In some embodiments, sulcardine or a pharmaceutically acceptable salt thereof, is administered at a rate that does not produce an arrhythmia or a clinically significant change in heart rate of blood pressure. In some embodiment, the method increases or decreases diastolic and/or systolic blood pressure by no more than 25%. In some embodiments, the method does not induce a 2 nd or 3 rd degree heart block.
• sulcardine or a pharmaceutically acceptable salt thereof is administered from about after the onset of symptoms. In some embodiments, sulcardine or a pharmaceutically acceptable salt thereof, is administered from about 15 minutes to about 72 hours after the onset of symptoms. In some embodiments, sulcardine or a pharmaceutically acceptable salt thereof, is administered no more than about 72 hours after the onset of symptoms. In some embodiments, sulcardine or a salt thereof is administered without need for anti-coagulation. In some embodiments, sulcardine or a pharmaceutically acceptable salt thereof, is administered after less than 7 days after the onset of symptoms without need for anticoagulation. In some embodiments, sulcardine or a pharmaceutically acceptable salt thereof, is administered after about 72 hours after the onset of symptoms and after anti -coagulation therapy.
• the described ECG parameter changes may be dependent to the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient.
• AUC average plasma concentration and/or average plasma exposure
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is about 1,000 ng.h/mL to about 10,000 ng.h/mL.
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is about 1,000 ng.h/mL to about 2,000 ng.h/mL, about 1,000 ng.h/mL to about 3,000 ng.h/mL, about 1,000 ng.h/mL to about 4,000 ng.h/mL, about 1,000 ng.h/mL to about 5,000 ng.h/mL, about 1,000 ng.h/mL to about 6,000 ng.h/mL, about 1,000 ng.h/mL to about 7,000 ng.h/mL, about 1,000 ng.h/mL to about 8,000 ng.h/mL, about 1,000 ng.h/mL to about 9,000 ng.h/mL, about 1,000 ng.h/mL to about 10,000 ng.h/mL, about 2,000 ng.h/mL to about 3,000 ng.h/mL, about 2,000
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is about 1,000 ng.h/mL, about 2,000 ng.h/mL, about 3,000 ng.h/mL, about 4,000 ng.h/mL, about 5,000 ng.h/mL, about 6,000 ng.h/mL, about 7,000 ng.h/mL, about 8,000 ng.h/mL, about 9,000 ng.h/mL, or about 10,000 ng.h/mL.
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is at least about 1,000 ng.h/mL, about 2,000 ng.h/mL, about 3,000 ng.h/mL, about 4,000 ng.h/mL, about 5,000 ng.h/mL, about 6,000 ng.h/mL, about 7,000 ng.h/mL, about 8,000 ng.h/mL, or about 9,000 ng.h/mL.
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is at most about 2,000 ng.h/mL, about 3,000 ng.h/mL, about 4,000 ng.h/mL, about 5,000 ng.h/mL, about 6,000 ng.h/mL, about 7,000 ng.h/mL, about 8,000 ng.h/mL, about 9,000 ng.h/mL, or about 10,000 ng.h/mL.
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is about 1,000 ng.h/mL to about 6,500 ng.h/mL.
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is about 1,000 ng.h/mL to about 1,500 ng.h/mL, about 1,000 ng.h/mL to about 2,000 ng.h/mL, about 1,000 ng.h/mL to about 2,500 ng.h/mL, about 1,000 ng.h/mL to about 3,000 ng.h/mL, about 1,000 ng.h/mL to about 3,500 ng.h/mL, about 1,000 ng.h/mL to about 4,000 ng.h/mL, about 1,000 ng.h/mL to about 4,500 ng.h/mL, about 1,000 ng.h/mL to about 5,000 ng.h/mL, about 1,000 ng.h/mL to about 5,500 ng.h/mL, about 1,000 ng.h/mL to about 6,000 ng.h/mL, about 1,000 ng.h/m
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is about 1,000 ng.h/mL, about 1,500 ng.h/mL, about 2,000 ng.h/mL, about 2,500 ng.h/mL, about 3,000 ng.h/mL, about 3,500 ng.h/mL, about 4,000 ng.h/mL, about 4,500 ng.h/mL, about 5,000 ng.h/mL, about 5,500 ng.h/mL, about 6,000 ng.h/mL, or about 6,500 ng.h/mL.
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is at least about 1,000 ng.h/mL, about
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is at most about 1,500 ng.h/mL, about 2,000 ng.h/mL, about 2,500 ng.h/mL, about 3,000 ng.h/mL, about 3,500 ng.h/mL, about 4,000 ng.h/mL, about
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is about 100 ng.h/mL to about 1,000 ng.h/mL.
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is about 100 ng.h/mL to about 200 ng.h/mL, about 100 ng.h/mL to about 300 ng.h/mL, about 100 ng.h/mL to about 400 ng.h/mL, about 100 ng.h/mL to about 500 ng.h/mL, about 100 ng.h/mL to about 600 ng.h/mL, about 100 ng.h/mL to about 700 ng.h/mL, about 100 ng.h/mL to about 800 ng.h/mL, about 100 ng.h/mL to about 900 ng.h/mL, about 100 ng.h/mL to about 1,000 ng.h/mL, about 200 ng.h/mL to about 300 ng.h/mL, about 200 ng.h/mL to about 400 ng.h/
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is about 100 ng.h/mL, about 200 ng.h/mL, about 300 ng.h/mL, about 400 ng.h/mL, about 500 ng.h/mL, about 600 ng.h/mL, about 700 ng.h/mL, about 800 ng.h/mL, about 900 ng.h/mL, or about 1,000 ng.h/mL.
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is at least about 100 ng.h/mL, about 200 ng.h/mL, about 300 ng.h/mL, about 400 ng.h/mL, about 500 ng.h/mL, about 600 ng.h/mL, about 700 ng.h/mL, about 800 ng.h/mL, or about 900 ng.h/mL.
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is at most about 200 ng.h/mL, about 300 ng.h/mL, about 400 ng.h/mL, about 500 ng.h/mL, about 600 ng.h/mL, about 700 ng.h/mL, about 800 ng.h/mL, about 900 ng.h/mL, or about 1,000 ng.h/mL.
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient, as embodied above, is reached prior to, or at, Tmax. In some embodiments, the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient, as embodied above, is achieved at about 5% Tmax to about 95% Tmax.
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is achieved at about 5% Tmax to about 10% Tmax, about 5% Tmax to about 20% Tmax, about 5% Tmax to about 30% Tmax, about 5% Tmax to about 40% Tmax, about 5% Tmax to about 50% Tmax, about 5% Tmax to about 60% Tmax, about 5% Tmax to about 70% Tmax, about 5% Tmax to about 80% Tmax, about 5% Tmax to about 90% Tmax, about 5% Tmax to about 95% Tmax, about 10% Tmax to about 20% Tmax, about 10% Tmax to about 30% Tmax, about 10% Tmax to about 40% Tmax, about 10% Tmax to about 50% Tmax, about 10% Tmax to about 60% Tmax, about 10% Tmax to about 70% Tmax, about 10% Tmax to about 80% Tmax, about 10% Tmax to about 90% Tmax, about 10% Tmax to about 95% Tmax, about
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is achieved at about 5% Tmax, about 10% Tmax, about 20% Tmax, about 30% Tmax, about 40% Tmax, about 50% Tmax, about 60% Tmax, about 70% Tmax, about 80% Tmax, about 90% Tmax, or about 95% Tmax.
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is achieved at about at least about 5% Tmax, about 10% Tmax, about 20% Tmax, about 30% Tmax, about 40% Tmax, about 50% Tmax, about 60% Tmax, about 70% Tmax, about 80% Tmax, or about 90% Tmax.
• the level of average plasma concentration and/or average plasma exposure (AUC) of sulcardine or a pharmaceutically acceptable salt thereof in a given patient is achieved at about at most about 10% Tmax, about 20% Tmax, about 30% Tmax, about 40% Tmax, about 50% Tmax, about 60% Tmax, about 70% Tmax, about 80% Tmax, about 90% Tmax, or about 95% Tmax.
• the AF is acute AF.
• the AF is paroxysmal AF.
• the AF is recurrent AF.
• the treatment is for atrial flutter.
• the episode may be the first known event in a patient with new-onset AF or it may be a recurrent event in patients with paroxysmal AF.
• MRT mean residence time msec millisecond
• HBI-3000 (sulcardine sulfate) was administered to human subjects according to the protocol provided in ClinicalTrials.gov Identifier: NCT03397641. That protocol is incorporated herein by reference in its entirety.
• Background: HBI-3000 is a multi-ion channel blocker with relatively balanced in vitro inhibitory effects on iNa-Peak, hsfa-Late, Ica,L and Itu developed for the conversion of recent onset atrial fibrillation (AF).
• Table 2 summarizes ECG data at Cmax for each dose, as predicted by mixed-effects modeling. HBI-3000 induced dose-proportional changes in all ECG parameters. The increases in QRS and PDur are consistent with block of iNa-Peak. The increase in the PR interval is consistent with the increase in PDur and with both INa-Peak and Ica,L inhibition. Prolongation of TpTe is consistent with iKrblock, which would be expected, in isolation, to lengthen JTp as well. The observed dose- related reduction of JTp is likely due to counteraction of the effect of HB 1-3000 on her through its inhibition of both iNa-Late, and Ica,L.
• Table 3 shows selected pharmacokinetic data for each dose.
• Table 3 Selected pharmacokinetic data.
• the patient is administered 350 mg of HBI-3000.
• Table 4 shows selected pharmacokinetic data for 350 mg dose.
• HBI-3000 is a potent inhibitor of multiple cardiac ion channels that play a role in onset and maintenance of AF. Its strong reduction of JTp may predict freedom from arrhythmias associated with IKT block. Based on these results and preclinical data indicating low proarrhythmic risk.

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