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US20080090753A1 - Rapid Acting Injectable Insulin Compositions - Google Patents

Rapid Acting Injectable Insulin Compositions Download PDF

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Publication number
US20080090753A1
US20080090753A1 US11/869,693 US86969307A US2008090753A1 US 20080090753 A1 US20080090753 A1 US 20080090753A1 US 86969307 A US86969307 A US 86969307A US 2008090753 A1 US2008090753 A1 US 2008090753A1
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Prior art keywords
insulin
acid
chelator
composition
edta
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US11/869,693
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Inventor
Roderike Pohl
Solomon Steiner
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Albireo Pharma Inc
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Biodel Inc
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Priority claimed from US11/077,604 external-priority patent/US7279457B2/en
Application filed by Biodel Inc filed Critical Biodel Inc
Priority to US11/869,693 priority Critical patent/US20080090753A1/en
Assigned to BIODEL INC. reassignment BIODEL INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: POHL, RODERIKE, STEINER, SOLOMON S.
Publication of US20080090753A1 publication Critical patent/US20080090753A1/en
Priority to CA2702057A priority patent/CA2702057A1/fr
Priority to MX2010003776A priority patent/MX2010003776A/es
Priority to CN2008801187605A priority patent/CN101883609A/zh
Priority to PCT/US2008/079213 priority patent/WO2009048959A1/fr
Priority to JP2010529005A priority patent/JP2011500581A/ja
Priority to EP08837728A priority patent/EP2209528A1/fr
Priority to AU2008310900A priority patent/AU2008310900A1/en
Priority to US14/156,307 priority patent/US8933023B2/en
Abandoned legal-status Critical Current

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    • 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
    • A61K9/0056—Mouth soluble or dispersible forms; Suckable, eatable, chewable coherent forms; Forms rapidly disintegrating in the mouth; Lozenges; Lollipops; Bite capsules; Baked products; Baits or other oral forms for animals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00—Medicinal preparations containing peptides
    • A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
    • A61K38/22—Hormones
    • A61K38/28—Insulins
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
    • A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
    • A61K47/12—Carboxylic acids; Salts or anhydrides thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00—Drugs for disorders of the metabolism
    • A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
    • A61P3/10—Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics

Definitions

  • the invention is in the general field of injectable rapid acting drug delivery insulin formulations.
  • Type 2 diabetes Even before any other symptoms are present, one of the first effects of Type 2 diabetes is the loss of the meal-induced first-phase insulin release. In the absence of the first-phase insulin release, the liver will not receive its signal to stop making glucose. As a result, the liver will continue to produce glucose at a time when the body begins to produce new glucose through the digestion of the meal. As a result, the blood glucose level of patients with diabetes goes too high after eating, a condition known as hyperglycemia. Hyperglycemia causes glucose to attach unnaturally to certain proteins in the blood, interfering with the proteins' ability to perform their normal function of maintaining the integrity of the small blood vessels. With hyperglycemia occurring after each meal, the tiny blood vessels eventually break down and leak. The long-term adverse effects of hyperglycemia include blindness, loss of kidney function, nerve damage and loss of sensation and poor circulation in the periphery, potentially requiring amputation of the extremities.
  • an untreated diabetic's blood glucose becomes so elevated that the pancreas receives a signal to secrete an inordinately large amount of insulin.
  • the pancreas can still respond and secretes this large amount of insulin.
  • This inordinately large amount of insulin has two detrimental effects. First, it puts an undue extreme demand on an already compromised pancreas, which may lead to its more rapid deterioration and eventually render the pancreas unable to produce insulin. Second, too much insulin after digestion leads to weight gain, which may further exacerbate the disease condition.
  • Type 1 diabetes Because patients with Type 1 diabetes produce no insulin, the primary treatment for Type 1 diabetes is daily intensive insulin therapy.
  • the treatment of Type 2 diabetes typically starts with management of diet and exercise. Although helpful in the short-run, treatment through diet and exercise alone is not an effective long-term solution for the vast majority of patients with Type 2 diabetes.
  • diet and exercise When diet and exercise are no longer sufficient, treatment commences with various non-insulin oral medications. These oral medications act by increasing the amount of insulin produced by the pancreas, by increasing the sensitivity of insulin-sensitive cells, by reducing the glucose output of the liver or by some combination of these mechanisms. These treatments are limited in their ability to manage the disease effectively and generally have significant side effects, such as weight gain and hypertension. Because of the limitations of non-insulin treatments, many patients with Type 2 diabetes deteriorate over time and eventually require insulin therapy to support their metabolism.
  • Insulin therapy has been used for more than 80 years to treat diabetes. This therapy usually involves administering several injections of insulin each day. These injections consist of administering a long-acting basal injection one or two times per day and an injection of a fast acting insulin at meal-time. Although this treatment regimen is accepted as effective, it has limitations. First, patients generally dislike injecting themselves with insulin due to the inconvenience and pain of needles. As a result, patients tend not to comply adequately with the prescribed treatment regimens and are often improperly medicated.
  • insulin injections do not replicate the natural time-action profile of insulin.
  • the natural spike of the first-phase insulin release in a person without diabetes results in blood insulin levels rising within several minutes of the entry into the blood of glucose from a meal.
  • injected insulin enters the blood slowly, with peak insulin levels occurring within 80 to 100 minutes following the injection of regular human insulin.
  • a potential solution is the injection of insulin directly into the vein of diabetic patients immediately before eating a meal.
  • patients In studies of intravenous injections of insulin, patients exhibited better control of their blood glucose for 3 to 6 hours following the meal.
  • intravenous injection of insulin before each meal is not a practical therapy.
  • hypoglycemia can result in loss of mental acuity, confusion, increased heart rate, hunger, sweating and faintness. At very low glucose levels, hypoglycemia can result in loss of consciousness, coma and even death. According to the American Diabetes Association, or ADA, insulin-using diabetic patients have on average 1.2 serious hypoglycemic events per year, many of which events require hospital emergency room visits by the patients.
  • the formulations may be for subcutaneous, intradermal or intramuscular administration, In the preferred embodiment, the formulations are administered via subcutaneous injection.
  • the formulations contain insulin in combination with a chelator and dissolution agent, and optionally additional excipients.
  • the formulation contains human insulin, a zinc chelator such as EDTA and a dissolution agent such as citric acid. These formulations are rapidly absorbed into the blood stream when administered by subcutaneous injection.
  • the insulin is provided as a dry powder in a sterile vial. This is mixed with a diluent containing a pharmaceutically acceptable carrier, such as water, a zinc chelator such as EDTA and a dissolution agent such as citric acid shortly before or at the time of administration.
  • a pharmaceutically acceptable carrier such as water
  • EDTA zinc chelator
  • a dissolution agent such as citric acid
  • the insulin is stored as a frozen mixture, ready for use upon thawing.
  • FIG. 1 is a three dimensional schematic of insulin showing exposed surface charges and overlaid with molecules (“dissolution and chelating agents”) of appropriate size to mask the charge.
  • FIG. 2 is a schematic diagram of the transwell device 10 used to measure insulin absorption from a donor chamber 12 through 4-5 layers of immortalized oral epithelial cells 14 on a 0.1 micron filter 16 into a receiver chamber 18 .
  • FIGS. 3 a and 3 b are graphs comparing in vitro insulin transport (cumulative insulin in microunits) through oral epithelial cells in the transwell system of FIG. 2 , with and without 0.45 mg EDTA/ml, as a function of acid selected as dissolution agent.
  • EDTA was constant at 0.45 mg/mL while the acid concentrations were varied as follows: FIG. 3 a , Aspartic acid (0.47 mg/mL), Glutamic acid (0.74 mg/mL), Succinic acid (0.41 mg/mL), Adipic acid (0.73 mg/mL) and Citric acid (0.29 mg/mL and 0.56 mg/mL), pH range 3.2-3.8.
  • FIG. 3 a Aspartic acid (0.47 mg/mL), Glutamic acid (0.74 mg/mL), Succinic acid (0.41 mg/mL), Adipic acid (0.73 mg/mL) and Citric acid (0.29 mg/mL and 0.56 mg/mL), pH range
  • FIGS. 4 a and 4 b are graphs of in vitro insulin transport (cumulative insulin in microunits) through oral epithelial cells in the transwell system shown in FIG. 2 , comparing different dissolution agents, with and without 0.56 mg EDTA/mL and acids at the following equimolar (1.50 ⁇ 10 ⁇ 3 Mol) concentrations: Aspartic acid (0.20 mg/mL), Glutamic acid (0.22 mg/mL) and citric acid (0.29 mg/ml) ( FIG. 4 a ) and Citric acid at 1.80 mg/mL ( FIG. 4 b ). Two time periods (10 and 30 min.) were selected for comparative analysis.
  • FIG. 5 is a graph of in vitro insulin transport through oral epithelial cells using the transwell system of FIG. 2 to compare efficacy of different chelators.
  • the chelators were no chelator (control), EDTA, EGTA, DMSA, CDTA, and TSC.
  • FIG. 6 is a graph of the in vivo pharmacodynamic effect of insulin prepared with citric acid and EDTA (12 U) in human subjects, compared to HUMALOG® (12 U) and HUMULIN R®b (12 U), measures as mean GIR/kg.
  • FIG. 8 is a graph of the in vivo pharmacodynamics of insulin prepared with citric acid and EDTA in 16 diabetic type 2 patients; compared to HUMULIN R® and HUMALOG®, plotting blood glucose (mg/dl) over time (minutes).
  • the dosage used in the patient trial was patient specific, adjusted for each patient based on their current insulin therapy.
  • the insulin formulations of injectable human insulin described here are administered immediately prior to a meal or at the end of a meal.
  • the formulation combines recombinant human insulin with specific ingredients generally regarded as safe by the FDA.
  • the formulation is designed to be absorbed into the blood faster than the currently marketed rapid-acting insulin analogs.
  • One of the key features of the formulation of insulin is that it allows the insulin to disassociate, or separate, from the six molecule, or hexameric, form of insulin to the single molecule, or monomeric, form of insulin and prevents re-association to the hexameric form.
  • this formulation allows for more rapid delivery of insulin into the blood as the human body requires insulin to be in the form of a single molecule before it can be absorbed into the body to produce its desired biological effects.
  • Most human insulin that is sold for injection is in the hexameric form. This makes it more difficult for the body to absorb, as the insulin hexamer must first disassociate to form dimers and then monomers.
  • insulin refers to human or non-human, recombinant, purified or synthetic insulin or insulin analogues, unless otherwise specified.
  • Human insulin is the human peptide hormone secreted by the pancreas, whether isolated from a natural source or made by genetically altered microorganisms.
  • non-human insulin is the same as human insulin but from an animal source such as pig or cow.
  • an insulin analogue is an altered insulin, different from the insulin secreted by the pancreas, but still available to the body for performing the same action as natural insulin.
  • the amino acid sequence of insulin can be changed to alter its ADME (absorption, distribution, metabolism, and excretion) characteristics. Examples include insulin lispro, insulin glargine, insulin aspart, insulin glulisine, insulin detemir.
  • the insulin can also be modified chemically, for example, by acetylation.
  • human insulin analogues are altered human insulin which is able to perform the same action as human insulin.
  • a “Chelator” or “chelating agent” refers to a chemical compound that has the ability to form one or more bonds to zinc ions. The bonds are typically ionic or coordination bonds.
  • the chelator can be an inorganic or an organic compound.
  • a chelate complex is a complex in which the metal ion is bound to two or more atoms of the chelating agent.
  • a “solubilizing agent” is a compound that increases the solubility of materials in a solvent, for example, insulin in an aqueous solution.
  • solubilizing agents include surfactants (TWEENS®) solvent, such as ethanol; micelle forming; compounds, such as oxyethylene monostearate; and pH modifying agents.
  • a “dissolution agent” is an acid that, when added to insulin and EDTA, enhances the transport and absorption of insulin relative to HCl and EDTA at the same pH, as measured using the epithelial cell transwell plate assay described in the examples below.
  • HCl is not a dissolution agent but may be a solubilizing agent.
  • Citric acid is a dissolution agent when measured in this assay.
  • an “excipient” is an inactive substance other than a chelator or dissolution agent, used as a carrier for the insulin or used to aid the process by which a product is manufactured. In such cases, the active substance is dissolved or mixed with an excipient.
  • Formulations include insulin, a chelator and a dissolution agent(s) and, optionally, one or more other excipients.
  • the formulations are suitable for subcutaneous administration and are rapidly absorbed into the fatty subcutaneous tissue.
  • At least one of the formulation ingredients is selected to mask any charges on the active agent. This may facilitate the transmembrane transport of the insulin and thereby increase both the onset of action and bioavailability for the insulin.
  • the ingredients are also selected to form compositions that dissolve rapidly in aqueous medium. Preferably the insulin is absorbed and transported to the plasma quickly, resulting in a rapid onset of action (preferably beginning within about 5 minutes following administration and peaking at about 15-30 minutes following administration).
  • the chelator such as EDTA, chelates the zinc in the insulin, thereby removing the zinc from the insulin solution. This causes the insulin to take on its dimeric and monomeric form and retards reassembly into the hexamer state. Since these two forms exist in a concentration-driven equilibrium, as the monomers are absorbed, more monomers are created. Thus, as insulin monomers are absorbed through the subcutaneous tissue, additional dimers dissemble to form more monomers.
  • the monomeric form has a molecular weight that is less than one-sixth the molecular weight of the hexameric form, thereby markedly increasing both the speed and quantity of insulin absorption.
  • the chelator such as EDTA
  • dissolution agent such as citric acid
  • the insulin can be recombinant or purified from a natural source.
  • the insulin can be human or non-human. Human is preferred. In the most preferred embodiment, the insulin is human recombinant insulin. Recombinant human insulin is available from a number of sources.
  • the insulin may also be an insulin analogue which may be based on the amino acid sequence of human insulin but having one or more amino acids differences, or a chemically modified insulin or insulin analog.
  • the dosages of the insulin depends on its bioavailability and the patient to be treated. Insulin is generally included in a dosage range of 1.5-100 IU, preferably 3-50 IU per human dose.
  • Certain acids appear to mask charges on the insulin, enhancing uptake and transport, as shown in FIG. 1 .
  • Those acids which are effective as dissolution agents include acetic acid, ascorbic acid, citric acid, glutamic, aspartic, succinic, fumaric, maleic, and adipic, relative to hydrochloric acid, as measured in the transwell assay described in the examples below.
  • the active agent is insulin
  • a preferred dissolution agent is citric acid.
  • the hydrochloric acid may be used for pH adjustment, in combination with any of the formulations, but is not a dissolution agent.
  • the range of dissolution agent corresponds to an effective amount of citric acid in combination with insulin and EDTA of between 9.37 ⁇ 10 ⁇ 4 M to 9.37 ⁇ 10 ⁇ 2 M citric acid.
  • a zinc chelator is mixed with the active agent.
  • the chelator may be ionic or non-ionic.
  • Suitable chelators include ethylenediaminetetraacetic acid (EDTA), EGTA, alginic acid, alpha lipoic acid, dimercaptosuccinic acid (DMSA), CDTA (1,2-diaminocyclohexanetetraacetic acid), trisodium citrate (TSC).
  • Hydrochloric acid is used in conjunction with TSC to adjust the pH, and in the process gives rise to the formation of citric acid, which is a dissolution agent.
  • the chelator is EDTA.
  • the active agent is insulin
  • the chelator captures the zinc from the insulin, thereby favoring the dimeric form of the insulin over the hexameric form and facilitating absorption of the insulin by the tissues surrounding the site of administration (e.g. mucosa, or fatty tissue).
  • the chelator hydrogen may bond to the active agent, thereby aiding the charge masking of the active agent and facilitating transmembrane transport of the active agent.
  • the range of chelator corresponds to an effective amount of EDTA in combination with insulin and citric acid of between 2.42 ⁇ 10 ⁇ 4 M to 9.68 ⁇ 10 ⁇ 2 M EDTA.
  • compositions may be formulated in a conventional manner using one or more physiologically acceptable carriers comprising excipients and auxiliaries which facilitate processing of the active compounds into preparations which can be used pharmaceutically.
  • physiologically acceptable carriers comprising excipients and auxiliaries which facilitate processing of the active compounds into preparations which can be used pharmaceutically.
  • Formulation of drugs is discussed in, for example, Hoover, John E., Remington's Pharmaceutical Sciences, Mack Publishing Co., Easton, Pa. (1975), and Liberman, H. A. and Lachman, L., Eds., Pharmaceutical Dosage Forms, Marcel Decker, New York, N.Y. (1980).
  • solubilizing agents are included with the insulin agent to promote rapid dissolution in aqueous media.
  • Suitable solubilizing agents include wetting agents such as polysorbates, glycerin and poloxamers, non-ionic and ionic surfactants, food acids and bases (e.g. sodium bicarbonate), and alcohols, and buffer salts for pH control.
  • Stabilizers are used to inhibit or retard drug decomposition reactions which include, by way of example, oxidative reactions.
  • a number of stabilizers may be used. Suitable stabilizers include polysaccharides, such as cellulose and cellulose derivatives, and simple alcohols, such as glycerol; bacteriostatic agents such as phenol, m-cresol and methylparaben; isotonic agents, such as sodium chloride, glycerol, and glucose; lecithins, such as example natural lecithins (e.g. egg yolk lecithin or soya bean lecithin) and synthetic or semisynthetic lecithins (e.g.
  • the stabilizer may be a combination of glycerol, bacteriostatic agents and isotonic agents.
  • the injectable formulation contains insulin, a chelator, and a dissolution agent.
  • the injectable formulation contains insulin, EDTA, Citric acid and saline and/or glycerol.
  • the subcutaneous injectable formulation is produced by mixing saline and/or glycerol, citric acid and EITA to form a solution and sterilizing the solution (referred to as the “diluent”).
  • the insulin is separately added to sterile water to form a solution, filtered, and a designated amount is placed into each of a number of separate sterile injection bottles.
  • the insulin solution is lyophilized to form a powder and should be stored separately from the diluent to retain its stability. Prior to administration, the diluent is added to the insulin injection bottle. After the predetermined amount of insulin is subcutaneously injected into the patient, the remaining insulin solution may be stored, preferably by refrigeration.
  • the insulin is combined with the diluent, sterile filtered into multi-use injection and frozen prior to use.
  • the formulations may be subcutaneously administration or intramuscularly injection.
  • the formulation is designed to be rapidly absorbed and transported to the plasma for systemic delivery.
  • Formulations containing insulin as the active agent may be administered to a type 1 or type 2 diabetic patient before or during a meal. Due to the rapid absorption, the compositions can shut off the conversion of glycogen to glucose in the liver, thereby preventing hyperglycemia, the main cause of complications from diabetes and the first symptom of type 2 diabetes.
  • Currently available, standard, subcutaneous injections of human insulin must be administered about one half to one hour prior to eating to provide a less than desired effect, because the insulin is absorbed too slowly to shut off the production of glucose in the liver. Additionally, if given early enough in the progression of the disease, the subcutaneous insulin compositions may be able to slow or stop the progression of type 2 diabetes.
  • Oral epithelial cells were grown on transwell inserts for two weeks until multiple (4-5 layer) cell layers had formed, as shown in FIG. 2 .
  • the transport studies were conducted by adding the appropriate solutions to the donor well and removing samples from the receiver well after 10 minutes. Solutions consisted of water, +/ ⁇ EDTA (0.45 mg/ml), NaCl (0.85% w/v), 1 mg/ml insulin and a sufficient amount of acid to maintain the pH at 3.8. Insulin amounts in the receiver wells were assayed using ELISA.
  • FIGS. 3 a and 3 b demonstrate that some acids are more effective at enhancing uptake and transport of insulin through epithelial cells. These can be readily tested and compared to the results obtained using HCl, thereby providing a standard against which any acid can be tested and determined to be a dissolution agent (i.e., enhancing uptake and transport relative to HCl) or not.
  • the preferred acid is citric acid.
  • Example 1 The materials and methods of Example 1 were used with different concentrations of reagents. In the study, equimolar concentrations of acid and chelator were added. Solutions consisted of water, +/ ⁇ EDTA (0.56 mg/mn), NaCl (0.85% w/v), 1 mg/mL insulin and an acid: Aspartic acid (0.20 mg/mL), Glutamic acid (0.22 mg/mL) or citric acid (0.20 mg/ml). Citric acid was tested at a higher concentration of 1.8 mg/mL with and without chelator. This data is shown at two time periods, 10 and 30 minutes, post dosing of cell donor chambers.
  • Oral epithelial cells were grown on transwell inserts for two weeks until multiple (4-5 layer) cell layers had formed.
  • the transport studies were conducted by adding the appropriate solutions to the donor well and removing samples from the receiver well after 10, 20 and 30 minutes.
  • Citric acid at 1.8 mg/ml was dissolved in 0.85% w/v saline and then one of the following chelators was added to this solution at the concentration shown: EDTA at 1.80 mg/ml, EGTA at 1.84 mg/ml, DMSA at 0.88 mg/ml and TSC at 1.42 mg/ml. Because CDTA was used in its liquid form, citric acid was added directly to the CDTA. In each of these cases, the concentration of chelator was constant at 4.84 ⁇ 10 ⁇ 3 moles.
  • Insulin was then added at 1 mg/ml and the pH was re-adjusted to 3.8 if necessary.
  • a control set of samples using only HCl for pH adjustment are included for comparison.
  • pH 3.8 alginic acid solidifies, and therefore, was not included for comparison in this example.
  • Transwell experiments were done by adding 0.2 ml of each solution to the donor wells.
  • Insulin amounts in the receiver wells were assayed using ELISA.
  • FIG. 5 A graph of 30 minute insulin data is shown in FIG. 5 . There was significantly more insulin delivered through the cells when citric or glutamic acid was used, except as compared to results obtained with TSC (trisodium citrate). In the case of TSC, HCl was used for pH adjustment. The adjustment of pH generated citric acid, explaining these results.
  • TSC trisodium citrate
  • Diabetic swine were injected subcutaneously with one of four formulations of insulin.
  • Three formulations contained a chelator (EDTA, EGTA or TSC) and fourth control contained only regular human insulin Humulin R®, no chelator.
  • Citric acid (1.8 mg/ml) was used as the acid in all the chelator formulations, and NaCl and m-cresol were added for isotonicity and formulation sterility in all cases.
  • the chelators were all at the same molar concentration of 4.84 ⁇ 10 ⁇ 3 moles.
  • the aim of this study was to evaluate the pharmacodynamic (PD) properties of a test formulation containing insulin in combination with citric acid and EDTA, “CE”.
  • PD pharmacodynamic
  • FIGS. 6 and 7 The results are shown in FIGS. 6 and 7 .
  • SC injection of CE resulted in a time-action profile that produced a significantly more rapid rise in glucose consumption regular human insulin ( FIG. 6 ).
  • the mean pharmacokinetic data confirm the PD results ( FIG. 7 ).
  • VIAjectTM a very rapid acting formulation of regular human insulin (RHI) combined with citric acid and EDTA, referred to above as CE), RHI, and insulin lispro (Lispro) on postprandial blood glucose (BG) excursions after a standard meal in patients with Type 1 diabetes.
  • BG of 9 patients (5 males and 4 females; age 40 ⁇ 10 yrs, BMI 24.0 ⁇ 2.0 kg/m 2 ) were stabilized by means of a glucose clamp (target BG 120 mg/dl) prior to meal ingestion.
  • the glucose infusion was turned off prior to the standard meal and insulin dosing.
  • VIAjectTM (CE) Lispro or RHI was injected s.c. immediately before the meal.
  • postprandial glucose excursions were continuously monitored for 8 hours and glucose infusion was re-initiated if BG ⁇ 60 mg/dl. Plasma insulin levels were determined throughout the study.
  • the total number of hypoglycemic events (hours requiring glucose infusion) 3 to 8 hours post injection were 13 with RHI, 11 with Lispro and 4 with the CE formulation.
  • the mean total amount of glucose infused to prevent hypoglycemia during this time was six times higher for RHI and twice as much for Lispro than with VIAjectTM (CE).
  • the areas above and below the normal glycemic target zone (BG AUC above 140 and below 80 mg/dL) summed for all patients per group was 81,895 for RHI, 57,423 for Lispro and 38,740 mg/dL*min for VIAjectTM.
  • the mean blood glucose levels are shown in FIG. 8 .
  • VIAjectTM (CE) was the fastest in reversing the rise in blood glucose following the standard meal. Patients treated with VIAjectTM experienced reduced post prandial glucose excursions. In contrast, RHI had the highest glucose excursion, which is consistent with its slower absorption rate. Variability of the glucose levels (mean difference between maximal and minimal values) was significantly less for VIAjectTM than Lispro, demonstrating VIAject's better glycemic control in these patients with Type 1 diabetes.

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US11/869,693 2004-03-12 2007-10-09 Rapid Acting Injectable Insulin Compositions Abandoned US20080090753A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US11/869,693 US20080090753A1 (en) 2004-03-12 2007-10-09 Rapid Acting Injectable Insulin Compositions
AU2008310900A AU2008310900A1 (en) 2007-10-09 2008-10-08 Rapid acting injectable insulin compositions
EP08837728A EP2209528A1 (fr) 2007-10-09 2008-10-08 Compositions d'insuline injectable à action rapide
JP2010529005A JP2011500581A (ja) 2007-10-09 2008-10-08 即効型注射可能インスリン組成物
MX2010003776A MX2010003776A (es) 2007-10-09 2008-10-08 Composiciones de insulina inyectables de accion rapida.
CA2702057A CA2702057A1 (fr) 2007-10-09 2008-10-08 Compositions d'insuline injectable a action rapide
CN2008801187605A CN101883609A (zh) 2007-10-09 2008-10-08 可注射的速效胰岛素组合物
PCT/US2008/079213 WO2009048959A1 (fr) 2007-10-09 2008-10-08 Compositions d'insuline injectable à action rapide
US14/156,307 US8933023B2 (en) 2004-03-12 2014-01-15 Rapid acting injectable insulin compositions

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US8933023B2 (en) 2015-01-13
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