A Phase 1, Randomized, Double-Blind, Parallel, Placebo-Controlled, Multiple-Dose Escalation Study To Investigate The Safety, Tolerability, Pharmacokinetics And Pharmacodynamics Of A Modified-Release Formulation Of PF-04620110 In Otherwise Healthy Overweight Or Obese Adult Subjects

The primary purpose of this trial is to evaluate the safety and tolerability, pharmacokinetics and pharmacodynamics, of multiple oral doses of PF-04620110 as a modified-release formulation.

Start Date01 Jun 2011

Sponsor / Collaborator

Pfizer Inc.

NCT01298518 / CompletedPhase 1

A Phase 1B, Randomized, Double-Blind, Placebo-Controlled Trial To Assess The Efficacy And Safety Of 4-Week Administration Of Multiple Oral Doses Of PF-04620110 In Type 2 Diabetes Mellitus Subjects With Insufficient Glycemic Control On Metformin

PF-04620110 is a novel compound proposed for the treatment of Type 2 diabetes mellitus. The primary purpose of this trial is to evaluate the safety and tolerability, and pharmacodynamics, of multiple oral doses of PF-04620110 in T2DM patients.

Start Date01 Feb 2011

Sponsor / Collaborator

Pfizer Inc.

NCT01166217 / CompletedPhase 1

A Phase 1, Cross-over, Single-dose, Open-label Study to Estimate the Relative Bioavailability of Three Different Formulations of Pf-04620110 Under Fed/Fasted Conditions in Healthy Adult Subjects

PF-04620110 is a novel compound proposed for the treatment of Type 2 diabetes mellitus. The primary purpose of this trial is to evaluate the relative bioavailability of three different oral dose formulations of PF-04620110.

Start Date01 Jul 2010

Sponsor / Collaborator

Pfizer Inc.

[+1]

100 Clinical Results associated with PF-4620110

100 Translational Medicine associated with PF-4620110

100 Patents (Medical) associated with PF-4620110

Literatures (Medical) associated with PF-4620110

01 Jan 2023·Clinical Therapeutics

Inhibition of Diacylglycerol Acyltransferase 2 Versus Diacylglycerol Acyltransferase 1: Potential Therapeutic Implications of Pharmacology

Review

Author: Dullea, Robert ; Saxena, Aditi R ; Amin, Neeta B ; Somayaji, Veena

PURPOSEHepatic steatosis due to altered lipid metabolism and accumulation of hepatic triglycerides is a hallmark of nonalcoholic fatty liver disease (NAFLD). Diacylglycerol acyltransferase (DGAT) enzymes, DGAT1 and DGAT2, catalyze the terminal reaction in triglyceride synthesis, making them attractive targets for pharmacologic intervention. There is a common misconception that these enzymes are related; however, despite their similar names, DGAT1 and DGAT2 differ significantly on multiple levels. As we look ahead to future clinical studies of DGAT2 inhibitors in patients with NAFLD and nonalcoholic steatohepatitis (NASH), we review key differences and include evidence to highlight and support DGAT2 inhibitor (DGAT2i) pharmacology.METHODSThree Phase I, randomized, double-blind, placebo-controlled trials assessed the safety, tolerability, and pharmacokinetic properties of the DGAT2i ervogastat (PF-06865571) in healthy adult participants (Single Dose Study to Assess the Safety, Tolerability and Pharmacokinetics of PF-06865571 [study C2541001] and Study to Assess the Safety, Tolerability, and Pharmacokinetics of Multiple Doses of PF-06865571 in Healthy, Including Overweight and Obese, Adult Subjects [study C2541002]) or participants with NAFLD (2-Week Study in People With Nonalcoholic Fatty Liver Disease [study C2541005]). Data from 2 Phase I, randomized, double-blind, placebo-controlled trials of the DGAT1i PF-04620110 in healthy participants (A Single Dose Study of PF-04620110 in Overweight and Obese, Otherwise Healthy Volunteers [study B0961001] and A Multiple Dose Study of PF-04620110 in Overweight and Obese, Otherwise Healthy Volunteers [study B0961002]) were included for comparison. Safety outcomes were the primary end point in all studies, except in study C2541005, in which safety was the secondary end point, with relative change from baseline in whole liver fat at day 15 assessed as the primary end point. Safety data were analyzed across studies by total daily dose of ervogastat (5, 15, 50, 100, 150, 500, 600, 1000, and 1500 mg) or PF-04620110 (0.3, 1, 3, 5, 7, 10, 14, and 21 mg), with placebo data pooled separately across ervogastat and PF-04620110 studies.FINDINGSPublished data indicate that DGAT1 and DGAT2 differ in multiple dimensions, including gene family, subcellular localization, substrate preference, and specificity, with unrelated pharmacologic inhibition properties and differing safety profiles. Although initial nonclinical studies suggested a potentially attractive therapeutic profile with DGAT1 inhibition, genetic and pharmacologic data suggest otherwise, with common gastrointestinal adverse events, including nausea, vomiting, and diarrhea, limiting further clinical development. Conversely, DGAT2 inhibition, although initially not pursued as aggressively as a potential target for pharmacologic intervention, has consistent efficacy in nonclinical studies, with reduced triglyceride synthesis accompanied by reduced expression of genes essential for de novo lipogenesis. In addition, early clinical data indicate antisteatotic effects with DGAT2i ervogastat, in participants with NAFLD, accompanied by a well-tolerated safety profile.IMPLICATIONSAlthough pharmacologic DGAT1is are limited by an adverse safety profile, data support use of DGAT2i as an effective and well-tolerated therapeutic strategy for patients with NAFLD, NASH, and NASH with liver fibrosis.CLINICALTRIALSgov identifiers: NCT03092232, NCT03230383, NCT03513588, NCT00799006, and NCT00959426.

01 Aug 2020·Physiological Reports

Diacylglycerol acyltransferase 1/2 inhibition induces dysregulation of fatty acid metabolism and leads to intestinal barrier failure and diarrhea in mice

Article

Author: Nambu, Hirohide ; Yukioka, Hideo ; Yoshimoto, Ryo ; Takemoto, Kosuke ; Fukasaka, Yumiko

The intestinal metabolism and transport of triacylglycerol (TAG) play a critical role in dietary TAG absorption, and defects in the process are associated with congenital diarrhea. The final reaction in TAG synthesis is catalyzed by diacylglycerol acyltransferase (DGAT1 and DGAT2), which uses activated fatty acids (FA) as substrates. Loss-of-function mutations in DGAT1 cause watery diarrhea in humans, but mechanisms underlying the relationship between altered DGAT activity and diarrhea remain largely unclear. Here, the effects of DGAT1 and DGAT2 inhibition, alone or in combination, on dietary TAG absorption and diarrhea in mice were investigated by using a selective DGAT1 inhibitor (PF-04620110) and DGAT2 inhibitor (PF-06424439). Simultaneous administration of a single dosing of these inhibitors drastically decreased intestinal TAG secretion into the blood circulatory system and TAG accumulation in the duodenum at 60 min after lipid gavage. Under 60% high-fat diet (HFD) feeding, their repeated simultaneous administration for 2 days induced severe watery diarrhea and occasionally led to death. The diarrhea was accompanied by enhanced fecal FA excretion, intestinal injury and barrier failure. DGAT1 or DGAT2 inhibition alone did not induce the phenotypic changes observed in DGAT1/2 inhibitor-treated mice. The results demonstrate that DGAT1/2 inhibition alters TAG absorption and results in watery diarrhea in mice. DGAT1/2 inhibition-induced diarrhea may be caused by intestinal barrier dysfunction due to dysregulation of the cytotoxic FA metabolism. These findings suggest that DGAT-mediated intestinal TAG synthesis is a vital step for maintaining intestinal barrier integrity under HFD feeding.

01 Sep 2019·Biomedical Chromatography

Development and validation of a simple and sensitive high‐resolution LC/MS method for determination of PF‐04620110 in dog plasma: Application to a pharmacokinetic study

Article

Author: Zheng, Wei ; Mo, Chengke ; Chen, Yilu ; Chen, Yongzhuang ; He, Fan

AbstractIn this study, a more sensitive and reliable quantitative method based on ultra‐high performance liquid chromatography coupled with Q‐Exactive‐Orbitrap‐MS in full‐mass scan was developed and validated for the determination of PF‐04620110 in dog plasma. After protein precipitation with acetonitrile, the sample separations were carried out on an Acquity BEH C18 column with 1 mm ammonium acetate in water and acetonitrile containing 0.1% acetic acid as mobile phase, at a flow rate of 0.4 mL/min. The assay showed excellent linearity over the concentration range of 1–2000 ng/mL with correlation coefficient >0.9980 (r > 0.9980). The LLOQ was 1 ng/mL. The inter‐ and intra‐day precision (RSD, %) was within 9.69% while the accuracy (RE, %) was in the range of −8.59–11.24%. The extraction recovery was >85.37% and the assay was free of matrix effects. PF‐04620110 was demonstrated to be stable under various processing and handing conditions. The validated method was successfully applied to the pharmacokinetic study of PF‐04620110 in dogs and the results revealed that PF‐04620110 was slowly eliminated from plasma with a clearance of 60.81 ± 7.11 mL/h/kg for intravenous administration and 81.44 ± 25.79 mL/h/kg for oral administration. The oral bioavailability was determined to be 77.89% in dogs.

100 Deals associated with PF-4620110

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Indication	Highest Phase	Country/Location	Organization	Date
Diabetes Mellitus, Type 2	Phase 1	BE	Pfizer Inc.	01 Feb 2010
Obesity	Phase 1	US	Pfizer Inc.	01 Nov 2008

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NCT01298518 (CTgov)	Phase 1	Diabetes Mellitus, Type 2	48	Placebo	fgtfzzsvcx(hsdzlxvaez) = wumfdusubh cmacxlughd (yykxoszvgg, tdssdsjxwn - ummouykeyj) View more	-	06 Nov 2012

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