Fenofibrate: Difference between revisions

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{{Short description|Drug of the fibrate class, mainly used to reduce cholesterol levels}}
{{Drugbox
{{Use dmy dates|date=October 2021}}
| verifiedrevid = 443755937
{{Infobox drug
| IUPAC_name = propan-2-yl 2-{4-[(4-chlorophenyl)carbonyl]phenoxy}-2-methylpropanoate
| Watchedfields = changed
| verifiedrevid = 459443965
| image = fenofibrate structure.svg
| image = fenofibrate structure.svg
| width = 182
| width = 182
| alt =
| caption =


<!--Clinical data-->
<!-- Clinical data -->
| pronounce =
| tradename = Fenoglide, Lipofen
| tradename = Fenoglide, Lipofen, others
| Drugs.com = {{drugs.com|monograph|fenofibrate}}
| Drugs.com = {{drugs.com|monograph|fenofibrate}}
| MedlinePlus = a601052
| MedlinePlus = a601052
| DailyMedID = Fenofibrate
| pregnancy_US = C
| pregnancy_AU = B3
| legal_status =
| pregnancy_AU_comment =
| routes_of_administration = Oral
| pregnancy_category=
| routes_of_administration = [[Oral administration|By mouth]]
| class =
| ATC_prefix = C10
| ATC_suffix = AB05
| ATC_supplemental = {{ATC|C10|BA03}} {{ATC|C10|BA04}}

<!-- Legal status -->
| legal_AU = S4
| legal_AU_comment = <ref>{{cite web | title=Prescription medicines: registration of new generic medicines and biosimilar medicines, 2017 | website=Therapeutic Goods Administration (TGA) | date=21 June 2022 | url=https://www.tga.gov.au/resources/publication/publications/prescription-medicines-registration-new-generic-medicines-and-biosimilar-medicines-2017 | access-date=30 March 2024}}</ref>
| legal_BR = <!-- OTC, A1, A2, A3, B1, B2, C1, C2, C3, C4, C5, D1, D2, E, F-->
| legal_BR_comment =
| legal_CA = <!-- OTC, Rx-only, Schedule I, II, III, IV, V, VI, VII, VIII -->
| legal_CA_comment =
| legal_DE = <!-- Anlage I, II, III or Unscheduled-->
| legal_DE_comment =
| legal_NZ = <!-- Class A, B, C -->
| legal_NZ_comment =
| legal_UK = POM
| legal_UK_comment = <ref>{{cite web | title=Fenofibrate 267mg Capsules - Summary of Product Characteristics (SmPC) | website=(emc) | date=12 February 2020 | url=https://www.medicines.org.uk/emc/medicine/22425/SPC | access-date=13 April 2020}}</ref>
| legal_US = Rx-only
| legal_US_comment =
| legal_UN = <!-- N I, II, III, IV / P I, II, III, IV-->
| legal_UN_comment =
| legal_status = Rx-only


<!--Pharmacokinetic data-->
<!-- Pharmacokinetic data -->
| bioavailability =
| bioavailability =
| protein_bound = 99%
| protein_bound = 99%
| metabolism = [[Glucuronic acid|glucuronidation]]
| metabolism = [[Glucuronic acid|glucuronidation]]
| metabolites =
| elimination_half-life = 20 hours
| onset =
| elimination_half-life = 20 h
| duration_of_action =
| excretion = urine (60%), feces (25%)
| excretion = urine (60%), feces (25%)


<!--Identifiers-->
<!-- Identifiers -->
| CASNo_Ref = {{cascite|correct|CAS}}
| CAS_number_Ref = {{cascite|correct|??}}
| CAS_number_Ref = {{cascite|correct|??}}
| CAS_number = 49562-28-9
| CAS_number = 49562-28-9
| ATC_prefix = C10
| ATC_suffix = AB05
| ATC_supplemental =
| PubChem = 3339
| PubChem = 3339
| IUPHAR_ligand = 7186
| DrugBank_Ref = {{drugbankcite|correct|drugbank}}
| DrugBank_Ref = {{drugbankcite|correct|drugbank}}
| DrugBank = DB01039
| DrugBank = DB01039
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| KEGG_Ref = {{keggcite|correct|kegg}}
| KEGG_Ref = {{keggcite|correct|kegg}}
| KEGG = D00565
| KEGG = D00565
| KEGG2_Ref = {{keggcite|correct|kegg}}
| KEGG2 = C07586
| ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEBI = 5001
| ChEBI = 5001
| ChEMBL_Ref = {{ebicite|correct|EBI}}
| ChEMBL_Ref = {{ebicite|correct|EBI}}
| ChEMBL = 672
| ChEMBL = 672
| NIAID_ChemDB =
| PDB_ligand =
| synonyms =


<!--Chemical data-->
<!-- Chemical and physical data -->
| IUPAC_name = propan-2-yl 2-[4-(4-chlorobenzoyl)phenoxy]-2-methylpropanoate
| C=20 | H=21 | Cl=1 | O=4
| C=20 | H=21 | Cl=1 | O=4
| molecular_weight = 360.831 g/mol
| smiles = O=C(c1ccc(Cl)cc1)c2ccc(OC(C(=O)OC(C)C)(C)C)cc2
| SMILES = O=C(c1ccc(Cl)cc1)c2ccc(OC(C(=O)OC(C)C)(C)C)cc2
| InChI = 1/C20H21ClO4/c1-13(2)24-19(23)20(3,4)25-17-11-7-15(8-12-17)18(22)14-5-9-16(21)10-6-14/h5-13H,1-4H3
| InChIKey = YMTINGFKWWXKFG-UHFFFAOYAW
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/C20H21ClO4/c1-13(2)24-19(23)20(3,4)25-17-11-7-15(8-12-17)18(22)14-5-9-16(21)10-6-14/h5-13H,1-4H3
| StdInChI = 1S/C20H21ClO4/c1-13(2)24-19(23)20(3,4)25-17-11-7-15(8-12-17)18(22)14-5-9-16(21)10-6-14/h5-13H,1-4H3
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = YMTINGFKWWXKFG-UHFFFAOYSA-N
| StdInChIKey = YMTINGFKWWXKFG-UHFFFAOYSA-N
| density =
| density_notes =
| melting_point = 80
| melting_high = 81
| melting_notes =
| boiling_point =
| boiling_notes =
| solubility =
| sol_units =
| specific_rotation =
}}
}}
'''Fenofibrate''' is a [[medication|drug]] of the [[fibrate]] class. Fenofibrate was developed by [[Groupe Fournier SA]], before it was acquired in 2005 by Solvay Pharmaceutical, a [[Business|business unit]] owned by the [[Belgium|Belgian]] [[corporation]], [[Solvay (company)|Solvay S.A.]] In 2009 Solvay Pharmaceutical was acquired by [[Abbott Laboratories]]. It is mainly used to reduce [[cholesterol]] levels in patients at risk of [[cardiovascular disease]]. Like other fibrates, it reduces both [[low-density lipoprotein]] (LDL) and [[very low density lipoprotein]] (VLDL) levels, as well as increasing [[high-density lipoprotein]] (HDL) levels and reducing [[triglycerides]] level. It also appears to have a beneficial effect on the [[insulin resistance]] featured by the [[metabolic syndrome]].<ref>{{cite journal |author=Wysocki J, Belowski D, Kalina M, Kochanski L, Okopien B, Kalina Z |title=Effects of micronized fenofibrate on insulin resistance in patients with metabolic syndrome |journal=Int J Clin Pharmacol Ther |volume=42 |issue=4 |pages=212–7 |year=2004 |pmid=15124979}}</ref> It is used alone or in conjunction with [[statin]]s in the treatment of [[hypercholesterolemia]] and [[hypertriglyceridemia]].


<!-- Definition and medical uses -->
==Dosage==
'''Fenofibrate''' (sold under the brand names ''Tricor'', ''Fenobrat'' etc.), is an oral medication of the [[fibrate]] class used to treat [[dyslipidemia|abnormal blood lipid levels]].<ref name=AHFS2019/> It is less commonly used compared than statins because it treats a different type of cholesterol abnormality to statins. While statins have strong evidence for reducing heart disease and death, there is evidence to suggest that fenofibrate also reduces the risk of heart disease and death. However, this seems only to apply to specific populations of people with elevated triglyceride levels and reduced high-density lipoprotein (HDL) cholesterol.<ref name=AHFS2019/><ref>{{cite journal | vauthors = Ginsberg HN, Elam MB, Lovato LC, Crouse JR, Leiter LA, Linz P, Friedewald WT, Buse JB, Gerstein HC, Probstfield J, Grimm RH, Ismail-Beigi F, Bigger JT, Goff DC, Cushman WC, Simons-Morton DG, Byington RP | display-authors = 6 | title = Effects of combination lipid therapy in type 2 diabetes mellitus | journal = The New England Journal of Medicine | volume = 362 | issue = 17 | pages = 1563–1574 | date = April 2010 | pmid = 20228404 | pmc = 2879499 | doi = 10.1056/NEJMoa1001282 }}</ref><ref>{{cite journal | vauthors = Kim NH, Han KH, Choi J, Lee J, Kim SG | title = Use of fenofibrate on cardiovascular outcomes in statin users with metabolic syndrome: propensity matched cohort study | journal = BMJ | volume = 366 | pages = l5125 | date = September 2019 | pmid = 31562117 | doi = 10.1136/bmj.l5125 | pmc = 6763755 | s2cid = 203580658 }}</ref> Its use is recommended together with dietary changes.<ref name=AHFS2019/>


<!-- Side effects and mechanisms -->
The pharmaceutical form and the strength may change from one country to another, and from one brand to another. In the United States, Tricor was reformulated in 2005 and is available in tablets of 48 and 145&nbsp;mg. This reformulation is controversial, as it is seen as an attempt to stifle competition from generic equivalents of the drug,<ref name="fdanews.com">Abbott's request to dismiss antitrust charge over Tricor rejected. FDANews, Drug Daily Bulletin, (June 1, 2006) [http://www.fdanews.com/newsletter/article?issueId=9284&articleId=87219]</ref> and is the subject of [[antitrust]] litigation by generic drug manufacturer [[Teva Pharmaceutical Industries|Teva]].<ref name="fdanews.com"/> Also available in the United States, Lofibra is available in 54 and 160&nbsp;mg tablets, as well as 67, 134, and 200&nbsp;mg micronized capsules.<ref>[http://www.lofibra.com/ TEVA Pharmaceutical Lofibra Product Site]</ref> Generic equivalents of Lofibra capsules are currently available in all three strengths in the United States. In Europe, it is available in either coated tablet or capsule; the strength range includes 67, 145, 160 and 200&nbsp;mg. The differences among strengths are a result of altered [[bioavailability]] (the fraction absorbed by the body) due to particle size. For example, 200&nbsp;mg can be replaced by 160&nbsp;mg micronized fenofibrate. The 145&nbsp;mg strength is a new strength that appeared in 2005-2006 which also replaces 200 or 160&nbsp;mg as the fenofibrate is nanonised (i.e. the particle size is below 400&nbsp;nm).
Common side effects include [[liver problems]], breathing problems, abdominal pain, muscle problems, and nausea.<ref name=AHFS2019/> Serious side effects may include [[toxic epidermal necrolysis]], [[rhabdomyolysis]], [[gallstones]], and [[pancreatitis]].<ref name=AHFS2019/> Use during [[pregnancy]] and [[breastfeeding]] is not recommended.<ref name="BNF76">{{cite book |title=British national formulary : BNF 76 |date=2018 |publisher=Pharmaceutical Press |isbn=9780857113382 |edition=76 |pages=198}}</ref><ref name=Preg2019>{{cite web |title=Fenofibrate Pregnancy and Breastfeeding Warnings
|url=https://www.drugs.com/pregnancy/fenofibrate.html |website=Drugs.com |access-date=3 March 2019 |language=en}}</ref> It works by multiple mechanisms.<ref name=AHFS2019>{{cite web |title=Fenofibric Acid/Fenofibrate Monograph for Professionals |url=https://www.drugs.com/monograph/fenofibric-acid-fenofibrate.html |website=Drugs.com |publisher=American Society of Health-System Pharmacists |access-date=3 March 2019 }}</ref>


<!-- History, society and culture -->
Fenofibrate increases the serum level of statins. Therefore, a lower dose of statin is generally necessary. Dose of fenofibrate must also be lowered in moderate to severe [[renal failure]] and most experts recommend that fenofibrate be given in the morning and the statin at night.{{fact|date=June 2011}}
It was patented in 1969, and came into medical use in 1975.<ref name=Fis2006>{{cite book | vauthors = Fischer J, Ganellin CR |title=Analogue-based Drug Discovery |date=2006 |publisher=John Wiley & Sons |isbn=9783527607495 |page=474 |url=https://books.google.com/books?id=FjKfqkaKkAAC&pg=PA474 }}</ref> It is available as a [[generic medication]].<ref name=BNF76/> In 2021, it was the 81st most commonly prescribed medication in the United States, with more than 8{{nbsp}}million prescriptions.<ref>{{cite web | title=The Top 300 of 2021 | url=https://clincalc.com/DrugStats/Top300Drugs.aspx | website=ClinCalc | access-date=14 January 2024 | archive-date=15 January 2024 | archive-url=https://web.archive.org/web/20240115223848/https://clincalc.com/DrugStats/Top300Drugs.aspx | url-status=live }}</ref><ref>{{cite web | title = Fenofibrate - Drug Usage Statistics | website = ClinCalc | url = https://clincalc.com/DrugStats/Drugs/Fenofibrate | access-date = 14 January 2024}}</ref>


==Mode of action==
==Medical uses==
Fenofibrate is mainly used for primary [[hypercholesterolemia]] or mixed [[dyslipidemia]]. Fenofibrate may slow the progression of diabetic retinopathy and the need for invasive treatment such as laser therapy in patients with type 2 diabetes with pre-existing retinopathy.<ref name=":2">{{cite journal | vauthors = Wong TY, Simó R, Mitchell P | title = Fenofibrate - a potential systemic treatment for diabetic retinopathy? | journal = American Journal of Ophthalmology | volume = 154 | issue = 1 | pages = 6–12 | date = July 2012 | pmid = 22709833 | doi = 10.1016/j.ajo.2012.03.013 }}</ref><ref name=":3">{{cite journal | vauthors = Keech AC, Mitchell P, Summanen PA, O'Day J, Davis TM, Moffitt MS, Taskinen MR, Simes RJ, Tse D, Williamson E, Merrifield A, Laatikainen LT, d'Emden MC, Crimet DC, O'Connell RL, Colman PG | display-authors = 6 | title = Effect of fenofibrate on the need for laser treatment for diabetic retinopathy (FIELD study): a randomised controlled trial | language = English | journal = Lancet | volume = 370 | issue = 9600 | pages = 1687–1697 | date = November 2007 | pmid = 17988728 | doi = 10.1016/S0140-6736(07)61607-9 | s2cid = 30479730 }}</ref><ref name=":4">{{cite journal | vauthors = Chew EY, Davis MD, Danis RP, Lovato JF, Perdue LH, Greven C, Genuth S, Goff DC, Leiter LA, Ismail-Beigi F, Ambrosius WT | display-authors = 6 | title = The effects of medical management on the progression of diabetic retinopathy in persons with type 2 diabetes: the Action to Control Cardiovascular Risk in Diabetes (ACCORD) Eye Study | language = English | journal = Ophthalmology | volume = 121 | issue = 12 | pages = 2443–2451 | date = December 2014 | pmid = 25172198 | pmc = 4252767 | doi = 10.1016/j.ophtha.2014.07.019 }}</ref> It was initially indicated for [[diabetic retinopathy]] in patients with [[type 2 diabetes]] and diabetic retinopathy in Australia.<ref>{{cite web|title=Australian Public Assessment Report for fenofibrate|url=https://www.tga.gov.au/file/6794/download|website=TGA|access-date=27 June 2015|archive-date=29 June 2015|archive-url=https://web.archive.org/web/20150629223527/https://www.tga.gov.au/file/6794/download|url-status=dead}}</ref> The large scale, international FIELD and ACCORD-Eye trials found that fenofibrate therapy reduced required laser treatment for diabetic retinopathy by 1.5% over 5 years'','' as well as reducing progression by 3.7% over 4 ''years.'' <ref name=":2" /><ref name=":3" /><ref name=":4" /><ref>{{cite journal | vauthors = Fazio S | title = More clinical lessons from the FIELD study | journal = Cardiovascular Drugs and Therapy | volume = 23 | issue = 3 | pages = 235–241 | date = June 2009 | pmid = 19160032 | doi = 10.1007/s10557-008-6160-5 | s2cid = 7987660 }}</ref> Further studies looking at the role of fenofibrate in the progression of diabetic retinopathy as the primary outcome is warranted to understand its role in this condition. Although no statistically significant cardiovascular risk benefits were identified in these trials, benefits may accrue to add on therapy to patients with high triglyceride dyslipidaemia currently taking statin medications.<ref>{{cite journal | vauthors = Elam MB, Ginsberg HN, Lovato LC, Corson M, Largay J, Leiter LA, Lopez C, O'Connor PJ, Sweeney ME, Weiss D, Friedewald WT, Buse JB, Gerstein HC, Probstfield J, Grimm R, Ismail-Beigi F, Goff DC, Fleg JL, Rosenberg Y, Byington RP | display-authors = 6 | title = Association of Fenofibrate Therapy With Long-term Cardiovascular Risk in Statin-Treated Patients With Type 2 Diabetes | journal = JAMA Cardiology | volume = 2 | issue = 4 | pages = 370–380 | date = April 2017 | pmid = 28030716 | pmc = 5470410 | doi = 10.1001/jamacardio.2016.4828 }}</ref><ref>{{cite journal | vauthors = Kim NH, Han KH, Choi J, Lee J, Kim SG | title = Use of fenofibrate on cardiovascular outcomes in statin users with metabolic syndrome: propensity matched cohort study | journal = BMJ | volume = 366 | pages = l5125 | date = September 2019 | pmid = 31562117 | pmc = 6763755 | doi = 10.1136/bmj.l5125 }}</ref>
Fenofibrate is a fibric acid derivative whose lipid modifying effects reported in humans are mediated via activation of [[Peroxisome proliferator-activated receptor alpha|peroxisome proliferator-activated receptor type alpha]] (PPARα). Through activation of PPARα fenofibrate increases the lipolysis and elimination of atherogenic triglyceride-rich particles from plasma by activating [[lipoprotein lipase]] and reducing production of apoprotein CIII. Activation of PPARα also induces an increase in the synthesis of apoproteins AI and AII, which leads to a reduction in [[Very low-density lipoprotein|very low-]] and [[Low-density lipoprotein|low-density]] fractions (VLDL and LDL) containing apoprotein B and an increase in the [[high-density lipoprotein]] fraction (HDL) containing apoprotein AI and AII. In addition, through modulation of the synthesis and catabolism of VLDL fractions, fenofibrate increases the LDL clearance and reduces small and dense LDL, the levels of which are elevated in the atherogenic lipoprotein phenotype, a common disorder in patients at risk for coronary heart disease.<ref>Package Insert: Laboratories Fournier SA, (September 2003)</ref>


Fenofibrate appears to reduce the risk of below ankle amputations in patients with Type 2 diabetes without microvascular disease.<ref name=":0">{{cite journal | vauthors = Rajamani K, Colman PG, Li LP, Best JD, Voysey M, D'Emden MC, Laakso M, Baker JR, Keech AC | display-authors = 6 | title = Effect of fenofibrate on amputation events in people with type 2 diabetes mellitus (FIELD study): a prespecified analysis of a randomised controlled trial | journal = Lancet | volume = 373 | issue = 9677 | pages = 1780–1788 | date = May 2009 | pmid = 19465233 | pmc = 2687887 | doi = 10.1016/S0140-6736(09)60698-X }}</ref> The FIELD study reported that fenofibrate at doses of 200&nbsp;mg daily, reduced the risk for any amputation by 37% independent of glycaemic control, presence or absence of dyslipidaemia and its lipid-lowering mechanism of action.<ref name=":0" /><ref name=":1">{{cite journal | vauthors = Steiner G | title = How can we improve the management of vascular risk in type 2 diabetes: insights from FIELD | journal = Cardiovascular Drugs and Therapy | volume = 23 | issue = 5 | pages = 403–408 | date = October 2009 | pmid = 19757004 | doi = 10.1007/s10557-009-6190-7 | s2cid = 12747599 }}</ref> However, the cohort of participants who underwent amputations were more likely to have had previous cardiovascular disease (e.g. [[angina]], [[myocardial infarction]]), longer duration of diabetes and had baseline neuropathy.<ref name=":0" /><ref name=":1" />
==Indication==

Fenofibrate is second-line therapy for hypercholesterolaemia and hypertriglyceridaemia alone or combined (types IIa, IIb, III, IV and V dyslipidaemias)<ref>[http://www.rxabbott.com/pdf/tricorpi.pdf Package Insert: Abbot Laboratories (October 2010)]</ref>, in situations in which first line therapy is insufficient or has unacceptable side-effects.
Fenofibrate has an [[off-label use]] as an added therapy of [[hyperuricemia|high blood uric acid levels]] in people who have [[gout]].<ref>{{cite journal | vauthors = Khanna D, Fitzgerald JD, Khanna PP, Bae S, Singh MK, Neogi T, Pillinger MH, Merill J, Lee S, Prakash S, Kaldas M, Gogia M, Perez-Ruiz F, Taylor W, Lioté F, Choi H, Singh JA, Dalbeth N, Kaplan S, Niyyar V, Jones D, Yarows SA, Roessler B, Kerr G, King C, Levy G, Furst DE, Edwards NL, Mandell B, Schumacher HR, Robbins M, Wenger N, Terkeltaub R | display-authors = 6 | title = 2012 American College of Rheumatology guidelines for management of gout. Part 1: systematic nonpharmacologic and pharmacologic therapeutic approaches to hyperuricemia | journal = Arthritis Care & Research | volume = 64 | issue = 10 | pages = 1431–1446 | date = October 2012 | pmid = 23024028 | pmc = 3683400 | doi = 10.1002/acr.21772 }}</ref>

It is used in addition to [[Diet (nutrition)|diet]] to reduce elevated [[low-density lipoprotein]] cholesterol (LDL), total [[cholesterol]], [[triglycerides]] (TG), and apolipoprotein B (apo B), and to increase [[high-density lipoprotein]] cholesterol (HDL) in adults with primary hypercholesterolemia or mixed dyslipidemia.<ref name="ReferenceB">{{cite web | url = http://www.rxabbott.com/pdf/tricorpi.pdf | title = TRICOR (fenofibrate) Package Insert | publisher = Abbot Laboratories | date = October 2010 }}</ref>

=== Severe hypertriglyceridemia type IV or V ===
It is used in tandem with diet for treatment of adults with severe [[hypertriglyceridemia]]. Improving glycemic control in diabetics showing fasting [[chylomicronemia]] usually reduces the need for pharmacologic intervention.<ref name="ReferenceB" />

Statins remain the first line for treatment of blood cholesterol. AHA guidelines from 2013 did not find evidence for routine use of additional medications.<ref name="ATP4 Guidelines">{{cite journal | vauthors = Stone NJ, Robinson JG, Lichtenstein AH, Bairey Merz CN, Blum CB, Eckel RH, Goldberg AC, Gordon D, Levy D, Lloyd-Jones DM, McBride P, Schwartz JS, Shero ST, Smith SC, Watson K, Wilson PW, Eddleman KM, Jarrett NM, LaBresh K, Nevo L, Wnek J, Anderson JL, Halperin JL, Albert NM, Bozkurt B, Brindis RG, Curtis LH, DeMets D, Hochman JS, Kovacs RJ, Ohman EM, Pressler SJ, Sellke FW, Shen WK, Smith SC, Tomaselli GF | display-authors = 6 | title = 2013 ACC/AHA guideline on the treatment of blood cholesterol to reduce atherosclerotic cardiovascular risk in adults: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines | journal = Circulation | volume = 129 | issue = 25 Suppl 2 | pages = S1-45 | date = June 2014 | pmid = 24222016 | doi = 10.1161/01.cir.0000437738.63853.7a | doi-access = free }}</ref>

Additionally, in 2016, the FDA filed "Withdrawal of Approval of Indications Related to the Coadministration With Statins in Applications for Niacin Extended-Release Tablets and Fenofibric Acid Delayed Release Capsules" noting "the Agency has concluded that the totality of the scientific evidence no longer supports the conclusion that a drug-induced reduction in triglyceride levels and/or increase in HDL cholesterol levels in statin-treated patients results in a reduction in the risk of cardiovascular events. Consistent with this conclusion, FDA has determined that the benefits of niacin ER tablets and fenofibric acid DR capsules for coadministration with statins no longer outweigh the risks, and the approvals for this indication should be withdrawn."<ref>{{cite web | title = AbbVie Inc. et al; Withdrawal of Approval of Indications Related to the Coadministration With Statins in Applications for Niacin Extended-Release Tablets and Fenofibric Acid Delayed- Release Capsules | url = https://s3.amazonaws.com/public-inspection.federalregister.gov/2016-08887.pdf | work = Food and Drug Administration | date = 18 April 2016 }}</ref>


==Contraindications==
==Contraindications==
Fenofibrate is contraindicated in:<ref name="ReferenceB"/>
Fenofibrate is contra-indicated in children, during pregnancy or lactation, in patients with liver insufficiency, presence of gallstones, renal insufficiency, in patients hypersensitive to fenofibrate and/or excipients, known photoallergy or phototoxic reaction during treatment with fibrates or ketoprofen.
* Patients with severe [[renal impairment]], including those receiving dialysis (2.7-fold increase in exposure, and increased accumulation during chronic dosing in patients with estimated [[glomerular filtration rate]] < 30 mL/min)
* Patients with active liver disease, including those with [[primary biliary cirrhosis]] and unexplained persistent [[liver function test]] abnormalities
* Patients with preexisting [[gallbladder]] disease
* Nursing mothers
* [[Hypothyroidism]]
* Patients with known [[hypersensitivity]] to fenofibrate or fenofibric acid


==Efficacy==
==Adverse effects==
The most common adverse events (>3% of patients with coadministered statins) are<ref name="Fenofibric acid label information"/>
Three randomized, double-blind, multicenter, phase III trials have shown that treatment with fenofibric acid plus a statin (atorvastatin, rosuvastatin or simvastatin) improved HDL and triglyceride levels significantly better than statin monotherapy and improved LDL levels better than fenofibric acid monotherapy.<ref name="feno">Yang L, Keating GM.[http://adisonline.com/cardiovascular/abstract/2009/09060/Fenofibric_Acid__In_Combination_Therapy_in_the.7.aspx Fenofibric Acid: In Combination therapy in the Treatment of Mixed Dyslipidemia]. American Journal of Cardiovascular Drugs 2009; 9(6): 401-409. doi:10.2165/11203920-000000000-00000.</ref>
{{div col|colwidth=25em}}
*Headache
*Back pain
*[[Nasopharyngitis]]
*Nausea
*[[Myalgia]]
*Joint pain or [[arthralgia]]
*Diarrhea
*Upper respiratory tract infection
*Calculi ([[Nephrolithiasis|Kidney Stones]])
{{div col end}}


===Precautions===
The Fenofibrate Intervention and Event Lowering in Diabetes (FIELD) study, which is the largest fibrate trial involving 9795 patients with type 2 diabetes mellitus published in 2005 did not show a significantly lower risk for the primary end point (non-fatal [[myocardial infarction]] and [[coronary heart disease]] death). But, it did report a [[relative risk]] reduction of 11% for Non-Fatal MI & CHD, although [[statistically significant|statistically insignificant]]. The secondary end-point (total [[cardiovascular disease]] events) was statistically significant with a relative risk reduction of 11% for total CVD events. There was a large proportion of placebo patients who commenced taking statin drugs during the trial, which in turn might affect the results of the study itself. After an adjustment was done for this statin drop in, the relative risk reductions were 19% for Non-Fatal MI & CHD Death, and 15% for total CVD events.<ref name="FIELD study investigators 2005 1849–61">{{cite journal |author=FIELD study investigators |title=Effects of long-term fenofibrate therapy on cardiovascular events in 9795 people with type 2 diabetes mellitus (the FIELD study): randomised controlled trial |journal=[[The Lancet|Lancet]] |volume=366 |issue=9500 |pages=1849–61 |year=2005 |pmid=16310551 |doi=10.1016/S0140-6736(05)67667-2 |last2=Simes |first2=RJ |last3=Barter |first3=P |last4=Best |first4=J |last5=Scott |first5=R |last6=Taskinen |first6=MR |last7=Forder |first7=P |last8=Pillai |first8=A |last9=Davis |first9=T}}</ref>
When fenofibrate and a statin are given as combination therapy, it is recommended that fenofibrate be given in the morning and the statin at night, so that the peak dosages do not overlap.<ref>{{cite journal | vauthors = Wierzbicki AS, Mikhailidis DP, Wray R, Schacter M, Cramb R, Simpson WG, Byrne CB | title = Statin-fibrate combination: therapy for hyperlipidemia: a review | journal = Current Medical Research and Opinion | volume = 19 | issue = 3 | pages = 155–168 | year = 2003 | pmid = 12814127 | doi = 10.1185/030079903125001668 | s2cid = 35948128 }}</ref>


Musculoskeletal
The FIELD study also showed a beneficial reduction in the risk of microvascular complications in type 2 diabetes patients. Fenofibrate treatment led to reduction in the progression albuminuria (14% less progression and 15% more regression compared with placebo). In addition, there was a 30% reduction in the needs for laser treatment for retinopathy.<ref name="FIELD study investigators 2005 1849–61"/>
*[[Myopathy]] and [[rhabdomyolysis]]; increased risk when coadminstered with a statin, particularly in the elderly and patients with [[diabetes]], [[kidney failure]], [[hypothyroidism]]<ref name="Fenofibric acid label information">Fenofibric Acid FDA Label Prescribing Information{{cite web|url=http://www.accessdata.fda.gov/drugsatfda_docs/label/2013/201573Orig1s000lbl.pdf|publisher=FDA|title=FDA Label Information}}</ref>
Hepatotoxicity
*Can increase serum [[transaminases]]; liver tests should be monitored periodically<ref name="Fenofibric acid label information"/>
Nephrotoxicity
*Can increase serum [[creatinine]] levels; renal function should be monitored periodically in patients with [[chronic kidney disease]]<ref name="Fenofibric acid label information"/>
Biliary
*Can increase cholesterol excretion into the bile, leading to risk of [[cholelithiasis]]; if suspected, gallbladder studies are indicated. See "Interaction" section under [[Bile acid sequestrant]]<ref name="Fenofibric acid label information"/>
Coagulation/Bleeding
*Exercise caution in concomitant treatment with oral Coumadin anticoagulants (e.g. [[warfarin]]). Adjust the dosage of Coumadin to maintain the prothrombin time/INR at desired level to prevent bleeding complications.<ref name="Fenofibric acid label information"/>


==Overdose==
The FIELD sub-study analysis, shows that fenofibrate reduces the first laser treatment by 31%. In addition, for macular oedema by 31% and for proliferative retinopathy by 30%.<ref name="ReferenceA">FIELD study investigators. Effect of fenofibrate on the need for laser treatment for diabetic retinopathy (FIELD Study): a randomised controlled trial [[The Lancet|Lancet]]. 370. 1687-97. 2007</ref> In the ophthalmology sub-study, fenofibrate reduces the development or progression of retinopathy by reducing 22% in all patients and 79% in patients with pre-existing retinopathy.<ref name="ReferenceA"/>
"There is no specific treatment for overdose with fenofibric acid delayed-release capsules. General supportive care is indicated, including monitoring of [[vital signs]] and observation of clinical status". Additionally, [[hemodialysis]] should not be considered as an overdose treatment option because fenofibrate heavily binds to plasma proteins and does not dialyze well.<ref name="Fenofibric acid label information" />


== Interactions ==
The FIELD study also showed that fenofibrate reduced the number of non-traumatic amputations by 38%.<ref>Burgess D, et al., on behalf of the field investigators. Effect of fenofibrate on silent myocardial infarction, hospitalization for acute coronary syndromes and amputation in type 2 diabetes: the FIELD study. Circulation 2007; 116: II_838 [abstract].</ref>
Like most fibrates, fenofibrate can cause stomach upsets and [[myopathy]] (muscle pain) and very rarely [[rhabdomyolysis]]. This risk is increased when used together with [[statin]]s. However, the Fenofibrate Intervention and Event Lowering in Diabetes (FIELD) study provides important information that long-term treatment with fenofibrate therapy appears to have a favorable safety profile in patients with [[Diabetes mellitus type 2|type 2 diabetes]], even when nonstudy lipid-lowering medications were added. In FIELD, there were no cases of rhabdomyolysis reported in patients on combination therapy with fenofibrate and a statin. Thus, there is an increasing body of evidence that fenofibrate/statin combination therapy is safe and effective at managing dyslipidemia in patients with type 2 diabetes who are at risk for cardiovascular events. The ACCORD study, however, does not support the above statement about effectiveness (see below).


These drug interactions with fenofibrate are considered major and may need therapy modifications:
The recent FIELD Sub-analysis study published in Diabetes Care 2009, showed that fenofibrate significantly reduced CVD events in those with low HDL cholesterol and hypertension. The largest effect of fenofibrate to reduce CVD risk was observed in subjects with marked dyslipidemia (TG>2.3&nbsp;mmol/L & low HDL-C) in whom a 27% relative reduction risk of total CVD event was observed. Some have argued that the absolute benefits of fenofibrate are likely to be greater when metabolic syndrome features are present. The highest risk and greatest benefits of fenofibrate are seen among those with marked [[hypertriglyceridemia]]<ref>Russell Scott, et al., On behalf of the field investigators. Effects of fenofibrate treatment on cardiovascular disease risk in 9,795 individuals with type 2 diabetes and various components of the metabolic synndrome: the FIELD study. Diabetes Care 2009; 32: 493-498.</ref>, however these conclusions are not based on the predetermined endpoints of the study in the full group.
*Bile acid sequestrants (e.g. [[cholestyramine]], [[colestipol]], etc.): If taken together, bile acid resins may bind to fenofibrate, resulting in a decrease in fenofibrate absorption. To maximize absorption, patients need to separate administration by at least 1 h before or 4 h to 6 h after taking the bile acid sequestrant.<ref name="Fenofibric acid label information" /><ref>Product Information: TriCor(TM), fenofibrate. Abbott Laboratories, North Chicago, IL, 1998.</ref>
*Immunosuppressants (e.g. [[ciclosporin]] or [[tacrolimus]]): An increased risk of renal dysfunction exists with concomitant use of immunosuppressants and fenofibrate. Approach with caution when coadministering additional medications that decrease renal function.<ref>Product Information: Sandimmune(R) oral capsules, oral solution, intravenous injection, cyclosporine oral capsules, oral solution, intravenous injection. Novartis Pharmaceuticals Corporation, East Hanover, NJ, 2010.</ref>
*Vitamin K antagonists (e.g. [[warfarin]]): As previously mentioned, fenofibrate interacts with coumadin anticoagulants to increase the risk of bleeding. Dosage adjustment of vitamin K antagonist may be necessary.<ref name="Fenofibric acid label information" />
*Statins: Combination of [[statin]]s and fenofibrate may increase the risk of rhabdomyolysis or myopathy.<ref>Product Information: TRICOR(R) oral tablets, fenofibrate oral tablets. Abbott Laboratories, North Chicago, IL, 2007.</ref>


==Mechanism of action==
Classic markers of macrovascular and microvascular risk were associated with lower extremity amputations in patients with type 2 diabetes. Treatment with fenofibrate was associated with a lower risk of amputations, particularly minor amputations without known large-vessel disease, probably through non-lipid mechanisms. These findings could lead to a change in standard treatment for the prevention of diabetes-related lower-limb amputations.<ref>Kushwin Rajamani , et al., On behalf of the field investigators. Effect of fenofibrate on amputation events in people with type 2 diabetes mellitus (FIELD Study): a prespecified analysis of a randomised controlled trial. Lancet 2009; 373: 1780-88.</ref>
"In summary, enhanced catabolism of triglyceride-rich particles and reduced secretion of VLDL underlie the hypotriglyceridemic effect of fibrates, whereas their effect on HDL metabolism is associated with changes in HDL [[apolipoprotein]] expression."<ref name="staels"/>


Fenofibrate is a [[fibrate]] derivative, a [[prodrug]] comprising fenofibric acid linked to an isopropyl ester. It lowers lipid levels by activating [[peroxisome proliferator-activated receptor alpha]] (PPARα). PPARα activates [[lipoprotein lipase]] and reduces apoprotein CIII, which increases lipolysis and elimination of triglyceride-rich particles from plasma.<ref name="staels">{{cite journal | vauthors = Staels B, Dallongeville J, Auwerx J, Schoonjans K, Leitersdorf E, Fruchart JC | title = Mechanism of action of fibrates on lipid and lipoprotein metabolism | journal = Circulation | volume = 98 | issue = 19 | pages = 2088–2093 | date = November 1998 | pmid = 9808609 | doi = 10.1161/01.cir.98.19.2088 | citeseerx = 10.1.1.1004.321 | s2cid = 5858864 }}</ref>
In 2010, the Action to Control Cardiovascular Risk in Diabetes (ACCORD) trial showed that fenofibrate plus statins in patients with type 2 diabetes does not reduce cardiovascular events more than use of statins alone.<ref>{{cite journal|last=ACCORD Study|first=Group|coauthors=Ginsberg, HN, Elam, MB, Lovato, LC, Crouse JR, 3rd, Leiter, LA, Linz, P, Friedewald, WT, Buse, JB, Gerstein, HC, Probstfield, J, Grimm, RH, Ismail-Beigi, F, Bigger, JT, Goff DC, Jr, Cushman, WC, Simons-Morton, DG, Byington, RP|title=Effects of combination lipid therapy in type 2 diabetes mellitus.|journal=The New England journal of medicine|date=2010-04-29|volume=362|issue=17|pages=1563–74|pmid=20228404|doi=10.1056/NEJMoa1001282|pmc=2879499}}</ref> The ACCORD enrolled 5518 patients and followed them up for 4.7 years, providing moderately strong evidence for lack of real life benefit for using fibrates in diabetic patients with high cholesterol.


PPARα also increases apoproteins AI and AII, reduces VLDL- and LDL-containing apoprotein B, and increases HDL-containing apoprotein AI and AII.
Although ACCORD-Lipid trial did not provide support for the general addition of fenofibrate to statin-treated patients with type 2 diabetes mellitus (T2DM), it added significantly to the results from fibrate monotherapy trials indicative of benefit from such treatment in subgroups of patients who present with significant dyslipidemia. In particular, ACCORD-Lipid trial, in our view, supports the addition of fenofibrate to statin therapy in patients with T2DM and optimal low-density lipoprotein cholesterol levels but persistent, significant hypertriglyceridemia (>200mg/dll) and low high-density lipoprotein cholesterol levels (<35-40mg/dl).<ref>Marshall Elam, Laura C. Lovato and Henry Ginsberg. Role of fibrates in cardiovascular disease prevention, the ACCORD-Lipid perspective.Current Opinion in Lipidology 2011; 22: 55–61</ref>


==Formulations==
Fenofibrate reduced albuminuria and slowed estimated GFR loss over 5 years (FIELD), despite initially and reversibly increasing plasma creatinine. Fenofibrate may delay albuminuria and GFR impairment in type 2 diabetes patients. Confirmatory studies are merited.<ref>Davis TM, & et al. Effects of fenofibrate on renal function in patients with type 2 diabetes mellitus: the Fenofibrate Intervention and Event Lowering in Diabetes (FIELD) Study. Diabetologica 2011 Feb; 54(2): 280-90</ref>
Fenofibrate is available in several [[pharmaceutical form|formulations]] and is sold under several brand names, including:


* Tricor by AbbVie
==Side effects==
* Lipofen by Kowa Pharmaceuticals America Inc
Gastrointestinal: Digestive, gastric or intestinal disorders (abdominal pain, nausea, vomiting, diarrhea, and flatulence).
* Lofibra by [[Teva Pharmaceutical Industries|Teva]]
Skin Reactions: Rashes, Pruritus, urticaria or photosensitivity reactions.
* Lipanthyl, Lipidil, Lipantil micro and Supralip by [[Abbott Laboratories]]
* Fenocor-67 by Ordain Health Care
* Fenogal by SMB Laboratories
* Antara by Oscient Pharmaceuticals
* Tricheck by Zydus (CND)
* Atorva TG by Zydus Medica
* Golip by GolgiUSA
* Stanlip by Sun Pharma (India)


The formulations may differ in terms of [[pharmacokinetic]] properties, particularly [[bioavailability]]; some must be taken with meals, whereas others may be taken without regard to food.<ref>{{cite journal | vauthors = Ling H, Luoma JT, Hilleman D | title = A Review of Currently Available Fenofibrate and Fenofibric Acid Formulations | journal = Cardiology Research | volume = 4 | issue = 2 | pages = 47–55 | date = April 2013 | pmid = 28352420 | pmc = 5358213 | doi = 10.4021/cr270w }}</ref>
==Other uses==
Fenofibrate has a [[uricosuric]] effect, making it of use in the management of [[gout]].<ref name="pmid12759281">{{cite journal |author=Bardin T |title=Fenofibrate and losartan |journal=Ann. Rheum. Dis. |volume=62 |issue=6 |pages=497–8 |year=2003 |month=June |pmid=12759281 |pmc=1754575 |doi= 10.1136/ard.62.6.497|url=http://ard.bmjjournals.com/cgi/content/full/62/6/497}}</ref> It also acts as a blood thinner by lowering the amount of [[fibrinogen]] in the blood.<ref name="pmid10460070">{{cite journal |author=de la Serna G |title=Fenofibrate decreases plasma fibrinogen, improves lipid profile, and reduces uricemia |journal=Clinical Pharmacology & Therapeutics |url=http://www.nature.com/clpt/journal/v66/n2/abs/clpt1999438a.html |volume=66 |issue=2 |doi=10.1053/cp.1999.v66.99709}}</ref>


The choline salt of fenofibrate is available in the United States, sold as Trilipix, and may be taken without regard to meals.<ref name="Fenofibric acid label information" /><ref>{{cite journal | vauthors = Alagona P | title = Fenofibric acid: a new fibrate approved for use in combination with statin for the treatment of mixed dyslipidemia | journal = Vascular Health and Risk Management | volume = 6 | pages = 351–362 | date = May 2010 | pmid = 20531954 | pmc = 2879297 | doi = 10.2147/vhrm.s6714 | doi-access = free }}</ref>
==Scientific==
Fenofibrate exhibits [[anticonvulsant]] properties comparable to the [[Ketogenic Diet]] in adult rats, using [[pentylenetetrazol]] and lithium-[[pilocarpine]] models <ref name=Porta2009>{{cite pmid|19054409}}</ref>


==Environmental presence==
==Brand names==
Fenofibric acid was one of the 12 compounds identified in sludge samples taken from 12 [[wastewater treatment]] plants in [[California]] that were associated with [[estrogenic]] activity in [[in vitro]].<ref name=Black2021>{{cite journal | vauthors = Black GP, He G, Denison MS, Young TM | title = Using Estrogenic Activity and Nontargeted Chemical Analysis to Identify Contaminants in Sewage Sludge | journal = Environmental Science & Technology | volume = 55 | issue = 10 | pages = 6729–6739 | date = May 2021 | pmid = 33909413 | pmc = 8378343 | doi = 10.1021/acs.est.0c07846 | bibcode = 2021EnST...55.6729B }}</ref>
Fenofibrate is sold under the brand name Tricor and Trilipix by [[Abbott Labs]], Lipofen by Kowa Pharmaceuticals America Inc, Lofibra by [[Teva Pharmaceutical Industries|Teva]], Lipanthyl, Lipidil, and Supralip by [[Solvay Pharmaceutical]], Fenocor-67 by Ordain Health Care, Fenogal by SMB Laboratories, Antara by [[Oscient Pharmaceuticals]], and Golip by GolgiUSA.


==Notes==
==History==
Fenofibrate was first synthesized in 1974, as a derivative of [[clofibrate]], and was initially offered in France. It was initially known as procetofen, and was later renamed fenofibrate' to comply with [[World Health Organization]] [[International Nonproprietary Name]] guidelines.<ref>{{cite journal | vauthors = Lalloyer F, Staels B | title = Fibrates, glitazones, and peroxisome proliferator-activated receptors | journal = Arteriosclerosis, Thrombosis, and Vascular Biology | volume = 30 | issue = 5 | pages = 894–899 | date = May 2010 | pmid = 20393155 | pmc = 2997800 | doi = 10.1161/ATVBAHA.108.179689 }}</ref>
{{reflist}}


Fenofibrate was developed by Groupe Fournier SA of France.
==External links==

*[http://www.nlm.nih.gov/medlineplus/druginfo/meds/a601052.html MedlinePlus article on Fenofibrate]
== Society and culture ==
* [http://druginfo.nlm.nih.gov/drugportal/dpdirect.jsp?name=Fenofibrate U.S. National Library of Medicine: Drug Information Portal - Fenofibrate]
In the United States, Tricor was reformulated in 2005. This reformulation was controversial, seen as an attempt to stifle competition from generic equivalents,<ref name="fdanews.com">{{cite web|date=1 June 2006|title=Abbott's request to dismiss the antitrust charge over Tricor was rejected.|url=http://www.fdanews.com/newsletter/article?issueId=9284&articleId=87219|work=FDANews, Drug Daily Bulletin}}</ref> and was the subject of [[antitrust]] litigation by [[Teva Pharmaceutical Industries|Teva]].<ref name="fdanews.com" />
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== References ==
{{reflist}}


{{Lipid modifying agents}}
{{Lipid modifying agents}}
{{Antigout preparations}}
{{Antigout preparations}}
{{PPAR modulators}}
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