Les renseignements du Formulaire de médicaments s’adressent aux professionnels de la santé. Il ne s’agit pas d’un avis médical. Certains des renseignements, y compris ceux sur le financement des médicaments anticancéreux, ne s’appliquent pas à tous les patients. Les plans de traitement du cancer sont propres à chaque patient. Si vous êtes un patient, veuillez parler avec votre équipe soignante pour comprendre comment ces renseignements s’appliquent à vous.
trifluridine / tipiracil
Trifluridine is a thymidine-based nucleoside analogue, which is metabolized intracellularly into its triphosphate form and incorporated into DNA, thereby interfering with DNA synthesis and inhibiting cell proliferation. Tipiracil hydrochloride is a thymidine phosphorylase inhibitor which prevents the metabolism of trifluridine, prolonging its exposure.
| Bioavailability |
Trifluridine: at least 57% Tipiracil: at least 27% |
| Effects with food |
Cmax decreased by 40% when taken with high-fat, high-calorie meal.
|
| Peak plasma levels |
2 to 3 hours (in patients with advanced solid tumors) |
| PPB |
Trifluridine: 96% (mainly serum albumin) Tipiracil: < 8% |
Trifluridine is mainly eliminated via thymidine phosphorylase.
| Inactive metabolites |
Yes |
| Urine |
Trifluridine: 55% (inactive metabolites) Tipiracil: 27% |
| Feces |
Trifluridine: < 3% (unchanged) Tipiracil: 50% |
| Half-life |
Trifluridine: 2.0 hours (at steady state) Tipiracil: 2.4 hours (at steady state) |
-
Colorectal cancer
-
Gastric cancer / gastroesophageal cancer
Refer to the product monograph for a full list and details of approved indications.
Emetogenic Potential:
The adverse effects reported below were mainly from a placebo-controlled, Phase III study in refractory metastatic colorectal cancer, where the incidences are ≥ 2% from the control group. Incidences marked with an asterisk (*) were observed in pooled data of colorectal cancer patients. They also include potentially severe, life-threatening or post-marketing adverse events reported from other sources.
| ORGAN SITE | SIDE EFFECT* (%) | ONSET** | |||
|---|---|---|---|---|---|
| Cardiovascular | Venous thromboembolism (2%) | D | |||
| Dermatological | Alopecia (7%) | E | |||
| Paronychia (rare) | E | ||||
| Rash (4%) | E D | ||||
| Gastrointestinal | Anorexia (39%) (4% severe) | D | |||
| Diarrhea (32%) (3% severe) | E | ||||
| Dyspepsia (3%) | E | ||||
| Mucositis (8%) | E | ||||
| Nausea, vomiting (50%) (2% severe)* | I | ||||
| General | Fatigue (38%) (4% severe)* | E | |||
| Hematological | Myelosuppression ± infection, bleeding (58%) (severe, including febrile neutropenia (39%))* | E | |||
| Metabolic / Endocrine | ↓ K (4%) | E | |||
| Nervous System | Dysgeusia (7%) | E | |||
| Renal | Proteinuria (4%) | E | |||
| Respiratory | Interstitial lung disease (<1%) /pneumonitis | L | |||
| Other (4%) Nasopharyngitis | E | ||||
* "Incidence" may refer to an absolute value or the higher value from a reported range.
"Rare"
may refer to events with < 1% incidence, reported in post-marketing, phase 1 studies,
isolated data or anecdotal
reports.
** I = immediate (onset in hours to days)
E = early (days to weeks)
D = delayed (weeks to months)
L = late (months to years)
The most common side effects for trifluridine / tipiracil include myelosuppression ± infection, bleeding, nausea, vomiting, anorexia, fatigue and diarrhea.
Trifluridine / tipiracil has resulted in increased incidences of gastrointestinal toxicities. Anti-emetic, anti-diarrheal and other measures, such as fluid / electrolyte replacement therapy, should be administered early after onset of toxicity and as clinically indicated.
Severe and life-threatening myelosuppression (including a fatal case) has been observed with trifluridine / tipiracil. Appropriate measures, such as antimicrobial agents and granulocyte-colony stimulating factor, should be administered as clinically indicated.
Refer to protocol by which the patient is being treated.
Do not start treatment with trifluridine / tipiracil until ANC ≥ 1.5 x 109/L, platelets ≥ 75 x 109/L and non-hematological toxicities ≤ grade 1.
Oral: 35*mg/m2 BID on Days 1 to 5 and Days 8 to 12 of each 28-day cycle
*Based on the trifluridine component; up to a maximum of 80 mg per dose
|
Dose Level |
Dose* (mg/m2) BID |
|
0 |
35 |
|
-1 |
30 |
|
-2 |
25 |
|
-3 |
20 |
| -4 | Discontinue |
*Based on trifluridine component
Dose Calculation Based on Body Surface Area (BSA)
|
Dose |
BSA (m2) |
Dose (mg)* |
Number of tablets per dose |
Total daily dose (mg)* |
|
|
15 mg** |
20 mg** |
||||
|
35 mg/m2 |
< 1.07 |
35 |
1 |
1 |
70 |
|
1.07 – 1.22 |
40 |
0 |
2 |
80 |
|
|
1.23 – 1.37 |
45 |
3 |
0 |
90 |
|
|
1.38 – 1.52 |
50 |
2 |
1 |
100 |
|
|
1.53 – 1.68 |
55 |
1 |
2 |
110 |
|
|
1.69 – 1.83 |
60 |
0 |
3 |
120 |
|
|
1.84 – 1.98 |
65 |
3 |
1 |
130 |
|
|
1.99 – 2.14 |
70 |
2 |
2 |
140 |
|
|
2.15 – 2.29 |
75 |
1 |
3 |
150 |
|
|
≥ 2.3 |
80 |
0 |
4 |
160 |
|
*Given twice daily
**Based on trifluridine component
|
Dose Level |
BSA (m2) |
Dose (mg)* |
Number of tablets per dose |
Total Daily Dose (mg)* |
|
|
15 mg** |
20 mg** |
||||
|
-1 |
< 1.09 |
30 |
2 |
0 |
60 |
|
1.09 – 1.24 |
35 |
1 |
1 |
70 |
|
|
1.25 – 1.39 |
40 |
0 |
2 |
80 |
|
|
1.4 – 1.54 |
45 |
3 |
0 |
90 |
|
|
1.55 – 1.69 |
50 |
2 |
1 |
100 |
|
|
1.7 – 1.94 |
55 |
1 |
2 |
110 |
|
|
1.95 – 2.09 |
60 |
0 |
3 |
120 |
|
|
2.1 – 2.28 |
65 |
3 |
1 |
130 |
|
|
≥ 2.29 |
70 |
2 |
2 |
140 |
|
|
-2 |
<1.1 |
25*** |
2*** |
1*** |
50*** |
|
1.1 – 1.29 |
30 |
2 |
0 |
60 |
|
|
1.3 – 1.49 |
35 |
1 |
1 |
70 |
|
|
1.5 – 1.69 |
40 |
0 |
2 |
80 |
|
|
1.7 – 1.89 |
45 |
3 |
0 |
90 |
|
|
1.9 – 2.09 |
50 |
2 |
1 |
100 |
|
|
2.1 – 2.29 |
55 |
1 |
2 |
110 |
|
|
≥ 2.3 |
60 |
0 |
3 |
120 |
|
|
-3 |
<1.14 |
20 |
0 |
1 |
40 |
|
1.14 – 1.34 |
25*** |
2*** |
1*** |
50*** |
|
|
1.35 – 1.59 |
30 |
2 |
0 |
60 |
|
|
1.6 – 1.94 |
35 |
1 |
1 |
70 |
|
|
1.95 – 2.09 |
40 |
0 |
2 |
80 |
|
|
2.1 – 2.34 |
45 |
3 |
0 |
90 |
|
|
≥ 2.35 |
50 |
2 |
1 |
100 |
|
*Given twice daily
**Based on trifluridine component
***For total daily dose of 50 mg; patients should take 1 x 20 mg tablet in the morning and 2 x 15 mg tablets in the evening.
|
Toxicity |
Action |
|
Hematologic |
|
|
Grade 3 thrombocytopenia (platelets 25 to < 50 x 109/L) |
Hold*; restart next cycle at same dose level |
|
Grade 4 thrombocytopenia or neutropenia (platelets < 25 x 109/L or ANC < 0.5 x 109/L) requiring a > 1 week delay in start of next cycle |
Hold*; restart next cycle at ↓ one dose level |
|
Febrile neutropenia |
Hold*; restart next cycle at ↓ one dose level |
|
Non-hematologic |
|
|
Grade 3 or 4 non-hematologic; except for Grade 3 nausea and/or vomiting controlled by antiemetic therapy or diarrhea responding to antidiarrheal therapy |
Hold*; restart next cycle at ↓ one dose level |
|
Interstitial Lung Disease/Pneumonitis (treatment-related) |
Hold and investigate. If confirmed, discontinue permanently |
|
*Restart when platelets recovered to ≥ 75 x 109/L and ANC recovered to ≥ 1.5 x 109/L and non-hematological toxicities ≤ grade 1. Do not re-escalate dose after it has been reduced. |
|
Higher incidence of grade 3 or 4 hyperbilirubinemia was observed in patients with moderate hepatic impairment.
|
Hepatic Impairment |
Bilirubin |
|
AST |
Starting Dose |
|
Mild |
≤ ULN |
and |
> ULN |
No adjustment required |
|
< 1 – 1.5 x ULN |
and |
Any |
||
|
Moderate |
> 1.5 – 3 x ULN |
and |
Any |
Not recommended for use |
|
Severe |
> 3 x ULN |
Patients with moderate renal impairment (creatinine clearance = 30 - 59 mL/min) had a higher incidence (difference of at least 5%) of ≥ grade 3 adverse events (hemoglobin and leukocytes decreases) and serious adverse events compared to patients with normal or mild renal impairment.
|
Creatinine Clearance (mL/min) |
Starting Dose |
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|
≥ 60 |
No adjustment required |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
30 - 59 |
No adjustment required; monitor closely for hematological toxicity and dose adjust accordingly |
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|
15 - 29 |
*Based on the trifluridine component
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
< 15 (End Stage Renal Disease) |
Not studied, no data available |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
No adjustments of starting dose needed. No overall differences in effectiveness were reported based on age (≥65 years of age versus <65 years); higher incidences of severe myelosuppression were observed in patients aged ≥ 65 compared with those < 65. Efficacy and safety data in patients ≥ 75 years old is limited.
No dose adjustments required. Severe, life-threatening, or fatal interstitial lung disease (ILD)/pneumonitis have been rarely observed in one clinical trial of Asian patients as well as post marketing. There is limited data in African American patients.
Not indicated; safety and effectiveness have not been established.
- Trifluridine / tipiracil should be given orally with a glass of water, within one hour of completion of morning and evening meals.
- If a dose is missed or held, the patient should not make up for the missed dose.
- Store at room temperature (15 - 30°C) in its original packaging.
- Patients who have a known hypersensitivity to the drug or to any of its excipients
- Contains lactose; carefully consider use in patients with hereditary lactase, glucose or galactose disorders
- Use with caution in patients who received prior radiotherapy; may be at higher risk of hematological adverse effects
Other Drug Properties:
-
Carcinogenicity:
Unknown
No long term carcinogenicity studies. Trifluridine / tipiracil is genotoxic in bacteria and mice; treat as potential carcinogen.
-
Embryotoxicity:
Yes
-
Fetotoxicity:
Yes
Trifluridine / tipiracil is not recommended for use in pregnancy. Adequate contraception should be used by both sexes during treatment, and for at least 6 months after the last dose.
Women using a hormonal contraceptive must also use a barrier contraceptive, as it is unknown whether trifluridine / tipiracil may reduce the effectiveness of hormonal contraceptives.
-
Genotoxicity:
Probable
-
Excretion into breast milk:
Probable
Trifluridine / tipiracil are excreted in milk in animal studies. Breastfeeding is not recommended during treatment and for 1 day after the last dose.
-
Fertility effects:
Unlikely
Trifluridine is not metabolized by CYP P450 enzyme. Trifluridine, tipiracil and its metabolite FTY did not inhibit or induce the CYP enzymes 3A4, 1A2 or 2B6 in vitro studies.
| AGENT | EFFECT | MECHANISM | MANAGEMENT |
|---|---|---|---|
| Human thymidine kinase substrates (eg. zidovudine) | ↓ efficacy of antiviral product | Compete with trifluridine for activation via thymidine kinases | Caution; monitor for decreased efficacy of antiviral, consider switching to alternative antiviral that is not human thymidine kinase substrate (eg. lamivudine, abacavir etc.) |
| CNT1, ENT1 and ENT2 inhibitors or inducers (eg. zidovudine) | Unknown | Trifluridine is a substrate of these nucleoside transporters | Caution |
| OCT2 and MATE1 inhibitors (eg. cimetidine, dolutegravir) | ↑ tipiracil concentration | Tipiracil is a substrate of these transporters | Caution |
Treating physicians may decide to monitor more or less frequently for individual patients but should always consider recommendations from the product monograph.
| Monitor Type | Monitor Frequency |
|---|---|
CBC |
Baseline, before each cycle and at each visit (including Day 15) |
Renal function tests |
Baseline and at each visit |
Liver function tests |
Baseline and at each visit |
Proteinuria (by dipstick) |
Baseline and as clinically indicated |
Clinical toxicity assessment for infection, bleeding, venous thromboembolism, GI and respiratory effects |
At each visit |
Grade toxicity using the current NCI-CTCAE (Common Terminology Criteria for Adverse Events) version
Exceptional Access Program (EAP Website)
- trifluridine / tipiracil - For the treatment of metastatic gastric cancer (mGC) or adenocarcinoma of the gastroesophageal junction (GEJ) in adult patients, according to clinical criteria
- trifluridine / tipiracil - In combination with bevacizumab for treatment of metastatic colorectal cancer, according to clinical criteria
Mayer RJ et al. Randomized trial of TAS-102 for refractory metastatic colorectal cancer. N Engl J Med 2015;372:1909-19.
Product monograph: Lonsurf® (trifluridine and tipiracil). Taiho Pharma Canada Incorporated, January 23, 2018.
Product monograph: Lonsurf® (trifluridine and tipiracil). Taiho Oncology Incorporated, October 2020.
November 2024 Updated Supplementary Public Funding section
Refer to the New Drug Funding Program or Ontario Public Drug Programs websites for the most up-to-date public funding information.
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