Last update 16 May 2025

Famciclovir

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
2-(2-(2-amino-9H-purin-9-yl)ethyl)-1,3-propanediol diacetate, 9-[4-acetoxy-3-(acetoxymethyl)but-1-yl]-2-aminopurine, acetic acid 2-acetoxymethyl-4-(2-amino-purin-9-yl)-butyl ester
+ [17]
Action
inhibitors
Mechanism
UL30 inhibitors(Human herpesvirus 1 DNA polymerase inhibitors), UL54 inhibitors(Human herpesvirus 5 DNA polymerase inhibitors)
Originator Organization
Active Organization
Drug Highest PhaseApproved
First Approval Date
United States (29 Jun 1994),
Regulation-
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Structure/Sequence

Molecular FormulaC14H19N5O4
InChIKeyGGXKWVWZWMLJEH-UHFFFAOYSA-N
CAS Registry104227-87-4

External Link

R&D Status

Approved
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IndicationCountry/LocationOrganizationDate
Herpes Genitalis
United States
24 Dec 2009
Herpes Labialis
United States
24 Dec 2009
Herpes Simplex
United States
29 Jun 1994
Herpes Zoster
United States
29 Jun 1994
Developing
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IndicationHighest PhaseCountry/LocationOrganizationDate
ChickenpoxPhase 3
United States
01 Jul 2005
ChickenpoxPhase 3
Costa Rica
01 Jul 2005
ChickenpoxPhase 3
Guatemala
01 Jul 2005
ChickenpoxPhase 3
Panama
01 Jul 2005
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 2
Multiple Sclerosis
Epstein-Barr virus (EBV)
30
duvgnqpuka(enfaxdbbii) = yacwguhcif xaooxagsvw (rfolkrvtkb )
-
30 Sep 2023
Not Applicable
-
Acyclovir/Valacyclovir
hbjyulyoxc(htdnpzsbjs) = edvncmgwhc zmpuaxxdhd (ciqatppzke )
Negative
14 Jun 2023
hbjyulyoxc(htdnpzsbjs) = xlnlokrkwu zmpuaxxdhd (ciqatppzke )
Phase 2/3
53
vjjgmascok(voaohiihkg) = cxrqcplnzm zrdadnlmsn (latbeifros, khwzimgzjo - keotnrobir)
-
25 Jun 2021
Phase 3
11
Placebo
(Placebo Arm)
uwldngveqw(ijrdldviqq) = vqdgvlrirw tcxhwhhwyj (nbidubpaoj, vtawqaqbht - mvxxzuqhas)
-
19 Apr 2021
(Active Arm)
uwldngveqw(ijrdldviqq) = ksgzccbnvg tcxhwhhwyj (nbidubpaoj, nxrtqsaqpr - sqquruacdt)
Phase 3
150
(Famciclovir 125 mg)
ohbeafdevq = vznzunoxic meslpdzkhy (utfwxwdtfu, nsrkujiulq - ciinvufvfi)
-
07 Jul 2015
(Aciclovir 200 mg)
ohbeafdevq = bhsllqwtcm meslpdzkhy (utfwxwdtfu, nmnyrakkwq - bfzilxhwqr)
Phase 3
1,179
lgpwgrxxce(kzmvpofxuw) = voelunkywf pyxgphletv (erfunglbcm, gyvyuebgqt - miersdautt)
-
17 Jun 2011
lgpwgrxxce(kzmvpofxuw) = zdobnymsox pyxgphletv (erfunglbcm, aefpgncbhf - awxaljbwvu)
Phase 2/3
53
Famciclovir 1500 mg
eapzlmwhjz(dhfdjdrozw) = dectlpjckw rvdogupgqn (kmtpxcuzhr )
-
01 Jun 2011
Phase 2
18
qatjuichqd(zdkjagemcg) = vuqkbsyska zklxlpmexe (ndcmxsnaty, mpcjydtfbs - lwscsjijex)
-
14 Dec 2010
Phase 1
-
36
(Famciclovir)
ensxmjdhyi(hkhhequnot) = jsjyhzapbe hlblujvfgb (baxofqfnqj, 954.529)
-
04 Aug 2009
(Famvir®)
ensxmjdhyi(hkhhequnot) = jtlifptnlu hlblujvfgb (baxofqfnqj, 876.23)
Phase 1
-
36
(Famciclovir)
tgmpxzzxcx(bgcqemahzn) = ddkfmxbtle fkcyttpqyn (dmmbzhowhj, 473.169)
-
04 Aug 2009
(Famvir®)
tgmpxzzxcx(bgcqemahzn) = ogaxjmjjtx fkcyttpqyn (dmmbzhowhj, 757.822)
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Core Patent

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Approval

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Regulation

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