Chemical: Drug
telaprevir
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Annotated Labels
- Annotation of FDA Label for telaprevir and IFNL3
- Annotation of EMA Label for telaprevir and IFNL3
1. Annotation of FDA Label for telaprevir and IFNL3
Summary
Among both treatment-naïve and previous treatment failures patients with HCV genotype 1 infections, subjects of all IL28B genotypes appeared to have higher SVR rates with INCIVEK(telaprevir)-containing regimens compared to PEG-IFN alpha and RBV only. Patients with the favorable IFNL3 genotype (rs12979860 CC) tend to have higher response rates (SVR) as compared to patients with the CT or TT genotype with the protease inhibitor combination in treatment naïve patients.
Annotation
PGx information can be found in the Clinical Pharmacology label section.
Excerpt from the telaprevir (Incivek) label:
12.5 Pharmacogenomics
A genetic variant near the gene encoding interferon-lambda-3 (IL28B rs12979860, a C to T change) is a strong predictor of response to peginterferon alfa and ribavirin (PR). rs12979860 was genotyped in 454 of 1088 subjects in Study Trial 108 (treatment-naïve) and 527 of 662 subjects in Trial C216 (previously treated) (see Clinical Studies (14.2 and 14.3) for trial descriptions). SVR rates tended to be lower in subjects with the CT and TT genotypes compared to those with the CC genotype, particularly among treatment-naïve subjects receiving PR48 (Table 9). Among both treatment-naïve and previous treatment failures, subjects of all IL28B genotypes appeared to have higher SVR rates with INCIVEK-containing regimens. The results of this retrospective subgroup analysis should be viewed with caution because of the small sample size and potential differences in demographic or clinical characteristics of the subtrial population relative to the overall trial population.
INCIVEK is a strong inhibitor of CYP3A. INCIVEK is contraindicated when combined with drugs that are highly dependent on CYP3A for clearance and for which elevated plasma concentrations are associated with serious and/or life-threatening events (narrow therapeutic index). INCIVEK is contraindicated when combined with drugs that strongly induce CYP3A and thus may lead to lower exposure and loss of efficacy of INCIVEK. Contraindicated drugs are listed below in Table 3.
In vitro studies using recombinant human cytochrome P450 (CYP) isoforms indicated that CYP3A4 was the major isoform responsible for CYP-mediated telaprevir metabolism. In vitro studies using recombinant aldo-ketoreductases indicated that these and potentially other reductases are also responsible for the reduction of telaprevir. Other proteolytic enzymes are also involved in the hydrolysis of telaprevir. These non-CYP mediated pathways of metabolism likely play a major role after multiple dosing of telaprevir.
For the complete drug label text with sections containing pharmacogenetic information highlighted, see the telaprevir (Incivek) drug label.
*Disclaimer: The contents of this page have not been endorsed by the FDA and are the sole responsibility of PharmGKB.
Genes and/or phenotypes found in this label
2. Annotation of EMA Label for telaprevir and IFNL3
Summary
The EMA European Public Assessment Report (EPAR) for telaprevir (Incivo) contains a table showing higher SVR rates for patients with the IL28B (IFNL3) CC genotype compared to those with CT or TT when treated with the telaprevir, peginterferon alfa-2a and ribavirin drug combination, though this is not discussed further in the main text.
Annotation
Excerpt from the telaprevir (Incivo) EPAR:
Table 6 shows SVR rates by IL28B genotype and the stage of liver fibrosis at baseline.
Table 6: SVR rates for patient subgroups: Study C211
Subgroup T12(b.i.d.)/PR N=369 %(n/N) T12(q8h)/PR N=371 %(n/N) IL28B genotype CC 92% (97/105) 87% (92/106) CT 67% (139/206) 68% (141/208) TT 66% (38/58) 65% (37/57)
The EPAR also contains information regarding the metabolism of telaprevir by CYP3A (CYP3A4 and CYP3A5) and as an ABCB1 substrate, and that concomitant use of CYP3A and/or ABCB1 inducers or inhibitors, or substrates that are highly dependent on CYP3A for clearance, may affect plasma concentrations of telaprevir or be effected by telaprevir and should be taken with caution or are contraindicated.
For the complete drug label text with sections containing pharmacogenetic information highlighted, see the telaprevir (Incivo) EMA drug label.
*Disclaimer: The contents of this page have not been endorsed by the EMA and are the sole responsibility of PharmGKB.
Genes and/or phenotypes found in this label
-
CYP3A
- metabolism/PK, Contraindications section, Drug interactions section, Pharmacokinetics section, Warnings and precautions section
- source: European Medicines Agency
Clinical Variants that meet the highest level of criteria, manually curated by PharmGKB, are shown below.
To see more Clinical Variants with lower levels of criteria, click the button at the bottom of the page.
Clinical Annotation for rs12979860 (IFNL3, IFNL4), peginterferon alfa-2a, peginterferon alfa-2b, ribavirin, telaprevir and Hepatitis C, Chronic (level 1A Efficacy)
- Type
- Efficacy
- Variant
- rs12979860
- Genes
- IFNL3, IFNL4
- Phenotypes
- Hepatitis C, Chronic
- OMB Race
- Mixed Population
To see the rest of this clinical annotation please register or sign in.
Clinical Annotation for rs8099917 (IFNL3), peginterferon alfa-2a, peginterferon alfa-2b, ribavirin, telaprevir and Hepatitis C, Chronic (level 1B Efficacy)
- Type
- Efficacy
- Variant
- rs8099917
- Genes
- IFNL3
- Phenotypes
- Hepatitis C, Chronic
- OMB Race
- Mixed Population
- Race Notes
- Asian, White
To see the rest of this clinical annotation please register or sign in.
Disclaimer: The PharmGKB's clinical annotations reflect expert consensus based on clinical evidence and peer-reviewed literature available at the time they are written and are intended only to assist clinicians in decision-making and to identify questions for further research. New evidence may have emerged since the time an annotation was submitted to the PharmGKB. The annotations are limited in scope and are not applicable to interventions or diseases that are not specifically identified.
The annotations do not account for individual variations among patients, and cannot be considered inclusive of all proper methods of care or exclusive of other treatments. It remains the responsibility of the health-care provider to determine the best course of treatment for a patient. Adherence to any guideline is voluntary, with the ultimate determination regarding its application to be made solely by the clinician and the patient. PharmGKB assumes no responsibility for any injury or damage to persons or property arising out of or related to any use of the PharmGKB clinical annotations, or for any errors or omissions.
The table below contains information about pharmacogenomic variants on PharmGKB. Please follow the link in the "Variant" column for more information about a particular variant. Each link in the "Variant" column leads to the corresponding PharmGKB Variant Page. The Variant Page contains summary data, including PharmGKB manually curated information about variant-drug pairs based on individual PubMed publications. The PMIDs for these PubMed publications can be found on the Variant Page.
The tags in the first column of the table indicate what type of information can be found on the corresponding Variant Page.
Links in the "Gene" column lead to PharmGKB Gene Pages.
List of all variant annotations for telaprevir
| Gene ? |
Variant?
(147) |
Alternate Names ? | Chemicals ? |
Alleles
?
(+ chr strand) |
Function ? |
Amino Acid?
Translation |
|
|---|---|---|---|---|---|---|---|
| rs10048158 | NC_000017.10:g.64236318T>C, NC_000017.11:g.66240200T>C, rs17691108, rs59335053 |
T > C
|
SNP | ||||
| rs1127354 | NC_000020.10:g.3193842C>A, NC_000020.11:g.3213196C>A, NG_012093.1:g.8787C>A, NM_001267623.1:c.67-789C>A, NM_033453.3:c.94C>A, NM_181493.2:c.43C>A, NP_258412.1:p.Pro32Thr, NP_852470.1:p.Pro15Thr, NR_052000.1:n.194C>A, NR_052001.1:n.49-62C>A, NR_052002.1:n.286C>A, XM_006723564.2:c.94C>A, XM_006723565.2:c.67-789C>A, XM_011529234.1:c.94C>A, XM_011529235.1:c.94C>A, XP_006723627.1:p.Pro32Thr, XP_011527536.1:p.Pro32Thr, XP_011527537.1:p.Pro32Thr, rs111069069, rs11565932, rs117814751, rs16988347, rs3177087, rs3183216, rs41320251, rs52834049 |
C > A
|
SNP |
P32T
|
|||
| rs12944940 | NC_000017.10:g.64231716T>C, NC_000017.11:g.66235598T>C |
T > C
|
SNP | ||||
| rs12979860 | NC_000019.10:g.39248147C>T, NC_000019.9:g.39738787C>T, NG_042193.1:g.1825G>A, NM_001276254.2:c.151-152G>A, NR_074079.1:n.429-152G>A, XM_011526757.1:c.-1595G>A |
C > T
|
SNP | ||||
| rs1801689 | NC_000017.10:g.64210580A>C, NC_000017.11:g.66214462A>C, NG_012045.1:g.19977T>G, NM_000042.2:c.973T>G, NP_000033.2:p.Cys325Gly, XM_005257304.1:c.760T>G, XP_005257361.1:p.Cys254Gly, rs17690416, rs4791077, rs52792576 |
A > C
|
SNP |
C325G
|
|||
| rs1801690 | NC_000017.10:g.64208285C>G, NC_000017.11:g.66212167C>G, NG_012045.1:g.22272G>C, NM_000042.2:c.1004G>C, NP_000033.2:p.Trp335Ser, XM_005257304.1:c.791G>C, XP_005257361.1:p.Trp264Ser, rs17763527, rs8178862 |
C > G
|
SNP |
W335S
|
|||
| rs2585428 | NC_000020.10:g.52786897C>T, NC_000020.11:g.54170358C>T, NG_008334.1:g.8620G>A, NM_000782.4:c.544-670G>A, NM_001128915.1:c.544-670G>A, XM_005260304.1:c.544-670G>A, XM_005260304.3:c.544-670G>A, XM_005260305.1:c.544-670G>A |
C > T
|
SNP | ||||
| rs368234815 | NC_000019.10:g.39248514_39248515delTTinsG, NC_000019.9:g.39739154_39739155delTTinsG, NG_042193.1:g.1457_1458delAAinsC, NM_001276254.2:c.(65_?)delAAinsC, NP_001263183.2:p.Ala(22_?)_Ala22=, NR_074079.1:n.342_343delAAinsC, XM_011526757.1:c.-1963_-1962delAAinsC |
TT > G
|
indel | ||||
| rs52797880 | NC_000017.10:g.64216854A>G, NC_000017.11:g.66220736A>G, NG_012045.1:g.13703T>C, NM_000042.2:c.422T>C, NP_000033.2:p.Ile141Thr, XM_005257304.1:c.422T>C, XP_005257361.1:p.Ile141Thr, rs117879669 |
A > G
|
SNP |
I141T
|
|||
| rs7270101 | NC_000020.10:g.3193893A>C, NC_000020.11:g.3213247A>C, NG_012093.1:g.8838A>C, NM_001267623.1:c.67-738A>C, NM_033453.3:c.124+21A>C, NM_181493.2:c.73+21A>C, NR_052000.1:n.224+21A>C, NR_052001.1:n.49-11A>C, NR_052002.1:n.316+21A>C, XM_006723564.2:c.124+21A>C, XM_006723565.2:c.67-738A>C, XM_011529234.1:c.124+21A>C, XM_011529235.1:c.124+21A>C |
A > C
|
SNP | ||||
| rs8099917 | NC_000019.10:g.39252525T>G, NC_000019.9:g.39743165T>G, rs60715659 |
T > G
|
SNP | ||||
| rs8178822 | NC_000017.10:g.64225529G>T, NC_000017.11:g.66229411G>T, NG_012045.1:g.5028C>A, NM_000042.2:c.-32C>A, XM_005257304.1:c.-32C>A, rs17769656, rs386616016, rs60898032 |
G > T
|
SNP |
Overview
- aids-213006
- aids213006
- ly-570310
- mp-424
- vx-950
- Incivek
- Incivo
PharmGKB Accession Id
PA165958354
Type(s):
Drug
Description
Source: Drug Bank
Indication
Source: Drug Bank
Other Vocabularies
- ATC: Protease inhibitors (J05AE)
- UMLS: telaprevir (C1876229)
- RxNorm: telaprevir (1102261)
- NDFRT: TELAPREVIR (N0000182739)
Information pulled from DrugBank has not been reviewed by PharmGKB.
Pharmacology, Interactions, and Contraindications
Mechanism of Action
Source: Drug Bank
Pharmacology
Source: Drug Bank
Absorption, Distribution, Metabolism, Elimination & Toxicity
Biotransformation
Source: Drug Bank
Absorption
Source: Drug Bank
Half-Life
Source: Drug Bank
Toxicity
Source: Drug Bank
Clearance
Source: Drug Bank
Route of Elimination
Source: Drug Bank
Chemical Properties
SMILES
CCC[C@@H](C(=O)C(=O)NC1CC1)NC(=O)[C@@H]2[C@H]3CCC[C@H]3CN2C(=O)[C@H](C(C)(C)C)NC(=O)[C@H](C4CCCCC4)NC(=O)C5=NC=CN=C5
Source: PubChem
InChI String
InChI=1S/C36H53N7O6/c1-5-10-25(29(44)34(48)39-23-15-16-23)40-33(47)28-24-14-9-13-22(24)20-43(28)35(49)30(36(2,3)4)42-32(46)27(21-11-7-6-8-12-21)41-31(45)26-19-37-17-18-38-26/h17-19,21-25,27-28,30H,5-16,20H2,1-4H3,(H,39,48)(H,40,47)(H,41,45)(H,42,46)/t22-,24-,25-,27-,28-,30+/m0/s1
Source: PubChem
Publications related to telaprevir: 25
LinkOuts
Clinical Trials
These are trials that mention telaprevir and are related to either pharmacogenetics or pharmacogenomics.
NURSA Datasets
No NURSA datasets available.
