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Pimecrolimus

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Pimecrolimus
File:Pimecrolimus2DACS.svg
Clinical data
Trade namesElidel
AHFS/Drugs.comMonograph
Pregnancy
category
  • AU: B3
Routes of
administration		topical
ATC code
Legal status
Legal status
Pharmacokinetic data
Bioavailabilitylow systemic absorption
Protein binding74%–87%
MetabolismHepatic CYP3A
Identifiers
  • (3S,4R,5S,8R,9E,12S,14S,15R,16S,18R,19R,26aS)
CAS Number
PubChem CID
DrugBank
ChemSpider
UNII
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard100.124.895 Edit this at Wikidata
Chemical and physical data
FormulaC43H68ClNO11
Molar mass810.453 g/mol g·mol−1
3D model (JSmol)
  • Cl[C@@H]1CC[C@H](C[C@H]1OC)\C=C(/C)[C@H]2OC(=O)[C@@H]4CCCCN4C(=O)C(=O)[C@]3(O)O[C@H]([C@H](C[C@@H](C)CC(\C)=C\[C@@H](CC)C(=O)C[C@H](O)[C@H]2C)OC)[C@@H](OC)C[C@H]3C
  • InChI=1S/C43H68ClNO11/c1-10-30-18-24(2)17-25(3)19-36(53-8)39-37(54-9)21-27(5)43(51,56-39)40(48)41(49)45-16-12-11-13-32(45)42(50)55-38(28(6)33(46)23-34(30)47)26(4)20-29-14-15-31(44)35(22-29)52-7/h18,20,25,27-33,35-39,46,51H,10-17,19,21-23H2,1-9H3/b24-18+,26-20+/t25-,27+,28+,29-,30+,31+,32-,33-,35+,36-,37-,38+,39+,43+/m0/s1 checkY
  • Key:KASDHRXLYQOAKZ-ZPSXYTITSA-N checkY
 ☒NcheckY (what is this?)  (verify)

Pimecrolimus is an immunomodulating agent of the calcineurin inhibitor class used in the treatment of atopic dermatitis (eczema). It is available as a topical cream, once marketed by Novartis (however, Galderma has been promoting the compound in Canada since early 2007) under the trade name Elidel.

Pharmacology

Pimecrolimus is an ascomycin macrolactam derivative. It has been shown in vitro that pimecrolimus binds to macrophilin-12 (also referred to as FKBP-12) and inhibits calcineurin.[citation needed] Thus pimecrolimus inhibits T-cell activation by inhibiting the synthesis and release of cytokines from T-cells. Pimecrolimus also prevents the release of inflammatory cytokines and mediators from mast cells.[citation needed]

General characteristics

Pimecrolimus, like tacrolimus, belongs to the ascomycin class of macrolactam immunosuppressives, acting by the inhibition of T-cell activation by the calcineurin pathway and inhibition of the release of numerous inflammatory cytokines, thereby preventing the cascade of immune and inflammatory signals.[2] Pimecrolimus has a similar mode of action to that of tacrolimus but is more selective, with no effect on dendritic (Langerhans) cells.[3] It has lower permeation through the skin than topical steroids or topical tacrolimus[4] although they have not been compared with each other for their permeation ability through mucosa. In addition, in contrast with topical steroids, pimecrolimus does not produce skin atrophy.[5]

Uses

It has been proven to be effective in various inflammatory skin diseases, e.g., seborrheic dermatitis,[6] cutaneous lupus erythematosus,[7] oral lichen planus,[8] vitiligo,[9] and psoriasis.[10][11] Tacrolimus and pimecrolimus are both calcineurin inhibitors and function as immunosuppressants.[12]

Side effects

See also: Immunosuppressants in the treatment of dermatitis

In January 2006, the United States Food and Drug Administration (FDA) announced that Elidel packaging would be required to carry a black box warning regarding the potential increased risk of lymph node or skin cancer, as for the similar drug tacrolimus. Whereas current practice by UK dermatologists is not to consider this a significant real concern and they are increasingly recommending the use of such new drugs.[13]

Importantly, although the FDA has approved updated black-box warning for tacrolimus and pimecrolimus, the recent report of the American Academy of Dermatology Association Task Force finds that there is no causal proof that topical immunomodulators cause lymphoma or nonmelanoma skin cancer, and systemic immunosuppression after short-term or intermittent long-term topical application seems an unlikely mechanism.[14] Another recent review of evidence concluded that postmarketing surveillance shows no evidence for this systemic immunosuppression or increased risk for any malignancy.[15] However, strong debates and controversies continue regarding the exact indications of immunomodulators and their duration of use in the absence of active controlled trials.[16] Dermatologists' and Allergists' professional societies, the American Academy of Dermatology,[17] and the American Academy of Allergy, Asthma, and Immunology, have protested the inclusion of the black box warning. The AAAAI states "None of the information provided for the cases of lymphoma associated with the use of topical pimecrolimus or tacrolimus in AD indicate or suggest a causal relationship."[18]

References

  1. ^ "FDA-sourced list of all drugs with black box warnings (Use Download Full Results and View Query links.)". nctr-crs.fda.gov. FDA. Retrieved 22 Oct 2023.
  2. ^ Allen BR, Lakhanpaul M, Morris A, Lateo S, Davies T, Scott G, Cardno M, Ebelin ME, Burtin P, Stephenson TJ (2003). "Systemic exposure, tolerability, and efficacy of pimecrolimus cream 1% in atopic dermatitis patients". Arch Dis Child. 88 (11): 969–973. doi:10.1136/adc.88.11.969. PMC 1719352. PMID 14612358.
  3. ^ Meingassner JG, Kowalsky E, Schwendinger H, Elbe-Bürger A, Stütz A (2003). "Pimecrolimus does not affect Langerhans cells in murine epidermis". Br J Dermatol. 149 (4): 853–857. doi:10.1046/j.1365-2133.2003.05559.x. PMID 14616380.
  4. ^ Billich A, Aschauer H, Aszódi A, Stuetz A (2004). "Percutaneous absorption of drugs used in atopic eczema: pimecrolimus permeates less through skin than corticosteroids and tacrolimus". Int J Pharm. 269 (1): 29–35. doi:10.1016/j.ijpharm.2003.07.013. PMID 14698574.
  5. ^ Firooz A, Solhpour A, Gorouhi F, Daneshpazhooh M, Balighi K, Farsinejad K, Rashighi-Firoozabadi M, Dowlati Y (2006). "Pimecrolimus cream, 1%, vs hydrocortisone acetate cream, 1%, in the treatment of facial seborrheic dermatitis: a randomized, investigator-blind, clinical trial". Archives of Dermatology. 142 (8): 1066–1067. doi:10.1001/archderm.142.8.1066. PMID 16924062.
  6. ^ Firooz A, Solhpour A, Gorouhi F, Daneshpazhooh M, Balighi K, Farsinejad K, Rashighi-Firoozabadi M, Dowlati Y (2006). "Pimecrolimus cream, 1%, vs hydrocortisone acetate cream, 1%, in the treatment of facial seborrheic dermatitis: a randomized, investigator-blind, clinical trial". Archives of Dermatology. 142 (8): 1066–1067. doi:10.1001/archderm.142.8.1066. PMID 16924062.
  7. ^ Kreuter A, Gambichler T, Breuckmann F, Pawlak FM, Stücker M, Bader A, Altmeyer P, Freitag M (2004). "Pimecrolimus 1% cream for cutaneous lupus erythematosus". J Am Acad Dermatol. 51 (3): 407–410. doi:10.1016/j.jaad.2004.01.044. PMID 15337984.
  8. ^ Gorouhi F, Solhpour A, Beitollahi JM, Afshar S, Davari P, Hashemi P, Nassiri Kashani M, Firooz A (2007). "Randomized trial of pimecrolimus cream versus triamcinolone acetonide paste in the treatment of oral lichen planus". J Am Acad Dermatol. 57 (5): 806–813. doi:10.1016/j.jaad.2007.06.022. PMID 17658663.
  9. ^ Boone B, Ongenae K, Van Geel N, Vernijns S, De Keyser S, Naeyaert JM (2007). "Topical pimecrolimus in the treatment of vitiligo". Eur J Dermatol. 17 (1): 55–61. doi:10.1684/ejd.2007.0093 (inactive 2017-10-26). PMID 17324829.{{cite journal}}: CS1 maint: DOI inactive as of October 2017 (link)
  10. ^ Kreuter A, Sommer A, Hyun J, Bräutigam M, Brockmeyer NH, Altmeyer P, Gambichler T (2006). "1% pimecrolimus, 0.005% calcipotriol, and 0.1% betamethasone in the treatment of intertriginous psoriasis: a double-blind, randomized controlled study". Arch Dermatol. 142 (9): 1138–1143. doi:10.1001/archderm.142.9.1138. PMID 16983001.
  11. ^ Jacobi A, Braeutigam M, Mahler V, Schultz E, Hertl M (2008). "Pimecrolimus 1% cream in the treatment of facial psoriasis: a 16-week open-label study". Dermatology. 216 (2): 133–136. doi:10.1159/000111510. PMID 18216475.
  12. ^ Scheinfeld N (2004). "The use of topical tacrolimus and pimecrolimus to treat psoriasis: a review". Dermatol. Online J. 10 (1): 3. PMID 15347485.
  13. ^ N H Cox; Catherine H Smith (December 2002). "Advice to dermatologists re topical tacrolimus". Therapy Guidelines Committee. British Association of Dermatologists. Archived from the original (DOC) on 2006-05-25. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help); Unknown parameter |lastauthoramp= ignored (|name-list-style= suggested) (help)
  14. ^ Berger TG, Duvic M, Van Voorhees AS, VanBeek MJ, Frieden IJ; American Academy of Dermatology Association Task Force (2006). "The use of topical calcineurin inhibitors in dermatology: safety concerns Report of the American Academy of Dermatology Association Task Force". J Am Acad Dermatol. 54 (5): 818–823. doi:10.1016/j.jaad.2006.01.054. PMID 16635663.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  15. ^ Spergel JM, Leung DY (2006). "Safety of topical calcineurin inhibitors in atopic dermatitis: evaluation of the evidence". Curr Allergy Asthma Rep. 6 (4): 270–274. doi:10.1007/s11882-006-0059-7. PMID 16822378.
  16. ^ Stern RS (2006). "Topical calcineurin inhibitors labeling: putting the "box" in perspective". Archives of Dermatology. 142 (9): 1233–1235. doi:10.1001/archderm.142.9.1233. PMID 16983018.
  17. ^ "Statement Regarding FDA Decision On Two Eczema Medications By American Academy Of Dermatology".
  18. ^ [1]
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