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A minireview of the current status of potential weight loss approaches that …


Biology Articles » Biotechnology » Red Biotechnology » Addressing the Unmet Medical Need for Safe and Effective Weight Loss Therapies » Tables

Tables
- Addressing the Unmet Medical Need for Safe and Effective Weight Loss Therapies

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Table 1. Antiobesity therapeutics in development: appetite suppression via central nervous system action

Pharmacological Target Company Compound Development Status
Dopamine and norepinephrine reuptake inhibitor GSK Buproprion Marketed for depression and smoking cessation as Welbutrin
Phase III for obesity indication
Voltage-sensitive sodium channel and T-type calcium channel antagonist Dainippon Zonisamide Marketed for epilepsy as Excegran
Phase II for obesity indication
GABA receptor agonist/glutamate antagonist/sodium channel antagonist J&J Topiramate Marketed for epilepsy as Topamax
Discontinued for obesity indication
Modified ciliary neurotrophic factor, action on neural pathways Regeneron Axokine Phase III
Cannabinoid CB1 receptor antagonist Sanofi-Synthelabo Rimonabant/Acomplia Phase III
Solvay SR147778 Phase I
SLV319 Phase I
Natural product derived from a South-African plant, acts via an undisclosed mechanism Phytopharm P57 Phase II
Dopamine D2 receptor agonist PLIVA Bromocriptine (PLD165) Phase III for type 2 diabetes
Phase II discontinued for obesity
5HT2c serotonin receptor agonist Arena APD356 Phase I
Undisclosed target Shionogi S2367 Phase I
Undisclosed target Tularik T71 Phase I
Undisclosed target Biovitrum BVT.5182 Preclinical
Neuropeptide Y1 receptor antagonist GSK Preclinical
Neuropeptide Y5 receptor antagonist J&J Preclinical
Melanocortin 4 receptor agonist Several including GSK, Melacure, Merck, Neurocrine Research
Melanin-concentrating hormone receptor antagonist Several including Amgen, GSK, Lilly, Neurocrine, Neurogen, Takada Research
Histamine H3 receptor antagonist Abbott A331440 Research

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Table 2. Antiobesity therapeutics in development: gastrointestinal tract-signaling peptides, digestive enzyme targets

Pharmacological target Company Compound Development status
{alpha}-Glucosidase inhibitor, inhibits carbohydrate digestion and absorption Bayer/Pfizer (licensee, U.S.)/Sanofi-Synthelabo (licensee, European Union)/Sanwa Kagaku Kenkyusho (licensee, Japan) Miglitol Marketed for type 2 diabetes as Diastabol, Glyset, Miglibay, Plumarol
Phase II for obesity in patients with type 2 diabetes
Synthetic human amylin analog that acts as a gut-signaling peptide, prevents the abnormal rise in glucagon after meals, slows the rate of gastric emptying, and reduces postprandial glucose peaks Amylin Pharma Pramlintide/Symlin Preregistration for type 1 and type 2 diabetes
Phase II for obesity indication
Glucagon-like peptide peptide mimetic of GLP-17–36 amide, a peptide produced by the intestine, that stimulates insulin secretion in response to an increase in blood glucose, slows gastric emptying, and provides a satiety signal to the central nervous system Amylin Pharma/Lilly (licensee) Exenatide (AC2993) Phase III for type 2 diabetes
Preclinical for obesity
Exenatide-LAR (AC2993LAR) Phase II
NovoNordisk Liraglutide (NN2211) Phase II for type 2 diabetes
Preclinical for obesity indication
Biomeasure, Ipsen/Roche (licensee) BIM 51077 Phase II for type 2 diabetes
Zealand Pharma/Aventis (licensee) AVE0010 Phase II for type 2 diabetes
ConjuChem CJC-1131 Phase II for type 2 diabetes
Human Genome Sciences Albugon Preclinical
Theratechnologies TH0318 Preclinical
Genzyme GLP-1 gene therapy Research
Pancreatic lipase inhibitor, inhibits fat digestion and absorption Alizyme/Takeda (licensee for Japan) ATL962 Phase II
CCK-A agonist, provides a satiety signal to the central nervous system GSK 181771 Phase II
Sanofi-Synthelabo SR146131 Phase I
SR125180 Phase I
Undisclosed target, decreases gastric emptying, provides a satiety signal to the central nervous system Aventis Pharma HMR1426 Phase II
HMR1954 Phase I
Dipeptidyl peptidase IV inhibitor, prevents the inactivation of GLP-1, prolonging its action Novartis NVP LAF237 Phase III for type 2 diabetes
Merck MK431 Phase II for type 2 diabetes
Tanabe/GSK (licensee) T6666/815541A, 825964, 823093 Phase I for type 2 diabetes
BMS BMS 477119 Phase I for type 2 diabetes
Several including Ferring/J&J (licensee), Kyowa Haako, Sanofi-Synthelabo, PPD/Syrrx, Graffinity Pharma Preclinical
PYY3–36 receptor agonist, PYY3–36 is a naturally occurring intestinal peptide that provides a satiety signal to central nervous system Nastech PYY3–36 (intranasal) Phase I
Curis/Amylin Pharma (licensee) AC162352 Preclinical
Dual acting pancreatic lipase inhibitor and fat binding polymer, inhibits fat digestion and absorption without oil leakage Genzyme/Peptimmune (licensee) GT389-255 Phase I
Ghrelin antagonist, inhibits the action of ghrelin, a natural peptide hormone produced by the stomach that increases appetite Zenteris Preclinical

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Table 3. Antiobesity therapeutics in development: metabolic regulators

Pharmacological target Company Compound Development status
ß3-adrenergic receptor agonist, sympathomimetic, increases energy expenditure, inhibits intestinal motility Sanofi-Synthelabo SR58611A Phase III for depression
Phase IIa for obesity
Merck L796568 Phase II
GSK Solabegron (GW427353) Phase 1 for type 2 diabetes, discontinued for obesity
Nisshin-Kyorin N5984 Phase I
Modified leptin, decreases appetite and increases energy expenditure, useful in patients with lipodystrophy Arngen Metreleptin (recombinant methionyl human leptin) Phase II
An orally active peptide analog of a fragment of human growth hormone, hGH177–191, increases fat breakdown Metabolic Pharma AOD9604 Phase II
11ß-hydroxysteroid dehydrogenase type 1 (11-ß HSD-1) inhibitor, reduces tissue cortisol levels, results in an improvement in insulin sensitivity, metabolic risk factors, and body composition Biovitrum/Amgen (licensee) BVT.3498/AMG331 Phase II for type 2 diabetes and the metabolic syndrome
Acetyl CoA carboxylase 2 inhibitor, increases energy expenditure Pfizer Preclinical
Globular fragment of adiponectin, increases energy expenditure via adiponectin signaling pathway Serono Famoxin (gACRP30) Preclinical
Thyroid hormone receptorß agonist, increases energy expenditure Karo Preclinical
Fatty acid synthesis inhibitor and O-carnitine palmitoyltransferase-1 stimulator, decreases appetite via central nervous system action and increases peripheral fatty acid oxidation FASGen/P&G (licensee) C75 Preclinical
Stearoyl CoA desaturase-1 inhibitor, decreases fatty acid synthesis and increases fatty acid oxidation Xenon Genetics Preclinical

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