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Registry Hub
Peer-Reviewed Evidence
HomeDrug RegistryCompareTIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE vs CLADRIBINE
Comparative Pharmacology

TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE vs CLADRIBINE Comparison

Head-to-head clinical analysis & difference comparison: details on mechanism of action, dosing, half-life, interactions, and maternal-fetal safety.

Clinical EssentialsPharmacokineticsSpecial PopulationsSafety & MonitoringPregnancy & LactationClinical Insights
Differential Analysis

TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE vs CLADRIBINE

Clinician-reviewed, head-to-head comparison of mechanism, dosing, pharmacokinetics, and safety profiles.

View TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE Monograph View CLADRIBINE Monograph
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE
Antineoplastic Agent
Category C
CLADRIBINE
Antineoplastic Agent
Category C
TL;DR — Key Differences
  • Half-life: TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE has a half-life of The terminal elimination half-life of trifluridine is approximately 1.4 to 2.1 hours. For tipiracil, the half-life is about 2.1 to 3.3 hours. The short half-lives necessitate twice-daily dosing to maintain therapeutic concentrations.; CLADRIBINE has Terminal elimination half-life is approximately 5.4 hours (range 4.6–6.7 hours) after intravenous administration; prolonged in renal impairment..
  • No direct drug-drug interaction has been documented between TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE and CLADRIBINE.
  • Pregnancy: TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE is rated Category C; CLADRIBINE is rated Category C.

Last clinically reviewed: July 2026 · OpiCalc Medical Review Team

Clinical Essentials

TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE
CLADRIBINE
Mechanism of Action
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

Trifluridine is a thymidine-based nucleoside analog that incorporates into DNA, interfering with DNA synthesis and function. Tipiracil hydrochloride inhibits thymidine phosphorylase, preventing trifluridine degradation and increasing its systemic exposure.

CLADRIBINE

Cladribine is a purine nucleoside analog that is phosphorylated intracellularly to its active triphosphate form, which inhibits DNA synthesis and repair, leading to cell death, particularly in lymphocytes. It also depletes adenosine deaminase (ADA) and accumulates in cells with high deoxycytidine kinase activity.

Indications
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

Metastatic colorectal cancer (m CRC) previously treated with fluoropyrimidine-, oxaliplatin-, and irinotecan-based chemotherapy, an anti-VEGF biological therapy, and if RAS wild-type, an anti-EGFR therapy.,Metastatic gastric or gastroesophageal junction adenocarcinoma previously treated with at least two prior lines of therapy including a fluoropyrimidine, a platinum, either a taxane or irinotecan, and if appropriate, HER2/neu-targeted therapy.

CLADRIBINE

FDA-approved: Treatment of hairy cell leukemia.,Off-label: Chronic lymphocytic leukemia (CLL), multiple sclerosis (relapsing forms), Waldenström macroglobulinemia, cutaneous T-cell lymphoma, and as part of conditioning regimens for hematopoietic stem cell transplantation.

Standard Dosing
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

35 mg/m² orally twice daily on days 1-5 and 8-12 of each 28-day cycle. Maximum dose: 80 mg per dose.

CLADRIBINE

0.09 mg/kg/day IV over 2 hours for 7 consecutive days; or 0.14 mg/kg/day IV over 2 hours for 5 consecutive days (total dose 0.7 mg/kg per course).

Direct Interaction
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE
No Direct Interaction
CLADRIBINE
No Direct Interaction

Pharmacokinetics

TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE
CLADRIBINE
Half-Life
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

The terminal elimination half-life of trifluridine is approximately 1.4 to 2.1 hours. For tipiracil, the half-life is about 2.1 to 3.3 hours. The short half-lives necessitate twice-daily dosing to maintain therapeutic concentrations.

CLADRIBINE

Terminal elimination half-life is approximately 5.4 hours (range 4.6–6.7 hours) after intravenous administration; prolonged in renal impairment.

Metabolism
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

Trifluridine is primarily metabolized by thymidine phosphorylase to 5-(trifluoromethyl)uracil (inactive). Tipiracil is metabolized mainly via hepatic carboxylesterases and aldehyde oxidase, not significantly via CYP enzymes.

CLADRIBINE

Cladribine is primarily metabolized intracellularly by deoxycytidine kinase to its active triphosphate. It is also phosphorylated by deoxyguanosine kinase in mitochondria. Catabolism involves deamination by adenosine deaminase (ADA) to 2-chloroadenine, which is further metabolized.

Excretion
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

Trifluridine is primarily eliminated via metabolism and renal excretion. Approximately 29% of the trifluride dose is recovered in urine as trifluridine and its metabolites, with less than 3% as unchanged drug. Fecal excretion accounts for about 38% of the dose, mainly as metabolites. Tipiracil is predominantly excreted renally (about 55% as unchanged drug and metabolites) and fecally (about 19%).

CLADRIBINE

Renal (approximately 50% as unchanged drug); fecal elimination is minimal (<5%).

Protein Binding
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

Trifluridine: <1% bound to plasma proteins. Tipiracil: about 8% bound to plasma proteins.

CLADRIBINE

Approximately 20–30% bound to plasma proteins.

VD (L/kg)
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

Trifluridine: Vd/F is approximately 0.4 ± 0.1 L/kg, indicating distribution into total body water. Tipiracil: Vd/F is about 0.3 ± 0.1 L/kg.

CLADRIBINE

Approximately 4.5 L/kg (range 2.3–9.6 L/kg), indicating extensive tissue distribution.

Bioavailability
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

Following oral administration of the combination tablet, trifluridine has an absolute bioavailability of approximately 57% (fasted). Tipiracil bioavailability is about 70% (fasted). Food may alter absorption.

CLADRIBINE

Oral: approximately 37–55% (first-pass metabolism); subcutaneous: approximately 100%.

Special Populations

TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE
CLADRIBINE
Renal Adjustments
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

For GFR 30-59 m L/min: reduce dose to 20 mg/m² twice daily. For GFR 15-29 m L/min: reduce dose to 15 mg/m² twice daily. Contraindicated if GFR <15 m L/min.

CLADRIBINE

GFR <50 m L/min: reduce dose by 50%; GFR <10 m L/min: avoid use.

Hepatic Adjustments
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

Child-Pugh A: no adjustment. Child-Pugh B: reduce dose to 25 mg/m² twice daily. Child-Pugh C: not recommended.

CLADRIBINE

Child-Pugh Class B: reduce dose by 50%; Child-Pugh Class C: contraindicated.

Pediatric Dosing
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

Not established. Safety and efficacy in pediatric patients have not been studied.

CLADRIBINE

0.09 mg/kg/day IV over 2 hours for 7 consecutive days; or 0.14 mg/kg/day IV over 2 hours for 5 consecutive days (total dose 0.7 mg/kg per course). No specific pediatric dose adjustments beyond weight-based dosing.

Geriatric Dosing
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

No specific dose adjustment recommended; monitor renal function and adjust based on renal impairment. Elderly patients may have increased risk of myelosuppression and infections.

CLADRIBINE

No specific dose adjustment recommended; monitor renal function and adjust accordingly.

Safety & Monitoring

TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE
CLADRIBINE
Black Box Warnings
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE
FDA Black Box Warning

WARNING: NEUTROPENIA/THROMBOCYTOPENIA; AND GASTROINTESTINAL TOXICITY Neutropenia/Thrombocytopenia: Severe and life-threatening neutropenia and thrombocytopenia can occur. Obtain complete blood counts prior to each cycle and as clinically indicated. Withhold, reduce, or discontinue dosing for severe neutropenia or thrombocytopenia. Gastrointestinal Toxicity: Severe gastrointestinal toxicity including diarrhea, nausea, vomiting, and abdominal pain can occur. Withhold, reduce, or discontinue dosing for severe gastrointestinal toxicity.

CLADRIBINE
FDA Black Box Warning

WARNING: Neurotoxicity and Hematologic Toxicity. Cladribine can cause severe bone marrow suppression (neutropenia, anemia, thrombocytopenia) and neurotoxicity (including paralysis, coma, and death). Dose-dependent and more frequent in high doses.

Warnings/Precautions
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

Bone Marrow Suppression: May cause severe neutropenia, thrombocytopenia, and anemia. Monitor blood counts.,Gastrointestinal Toxicity: Severe diarrhea, nausea, vomiting, abdominal pain, and stomatitis. Manage with supportive care.,Renal Toxicity: Proteinuria, nephrotic syndrome. Monitor renal function.,Hepatic Toxicity: Elevations of liver enzymes and bilirubin. Monitor liver function.,Embryo-Fetal Toxicity: Can cause fetal harm. Advise females of reproductive potential of effective contraception and avoid breastfeeding.

CLADRIBINE

Myelosuppression: Monitor blood counts regularly; dose adjustment or discontinuation may be needed.,Neurotoxicity: Risk increased with high doses and in patients with renal impairment.,Nephrotoxicity: Use with caution in renal impairment; reduce dose if Cr Cl < 60 m L/min.,Hepatotoxicity: Monitor liver function tests.,Secondary malignancies: Increased risk of myelodysplasia and acute myeloid leukemia.,Infections: Increased susceptibility due to lymphopenia; consider prophylaxis.

Contraindications
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

None reported in prescribing information. Use caution in patients with severe renal impairment (Cr Cl <30 m L/min) or severe hepatic impairment.

CLADRIBINE

Hypersensitivity to cladribine or any component of the formulation.,Pre-existing severe bone marrow suppression (e.g., neutropenia, thrombocytopenia) unless due to underlying disease.,Pregnancy: Can cause fetal harm.,Lactation: Discontinue nursing or drug.

Adverse Reactions
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE
Data Pending
CLADRIBINE
Data Pending
Food Interactions
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

Take within 1 hour after a meal (breakfast and dinner) to reduce variability and improve tolerability. Avoid grapefruit or grapefruit juice? No established interaction; however, general caution due to potential CYP3A4 involvement? (minimal). High-fat meals may reduce peak concentration but do not significantly alter overall exposure; timing with meals is recommended not for efficacy but to mitigate gastrointestinal side effects.

CLADRIBINE

No significant food interactions. Avoid grapefruit juice due to potential CYP3A4 interaction (though minimal). Maintain adequate hydration to prevent tumor lysis syndrome in hematologic malignancies.

Pregnancy & Lactation

TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE
CLADRIBINE
Teratogenic Risk
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

Trifluridine/tipiracil is embryotoxic and teratogenic in animal studies. In humans, avoid use during pregnancy; effective contraception required during treatment and for at least 6 months after last dose. First trimester: highest risk of major malformations; second and third trimesters: risk of fetal growth restriction and adverse neonatal outcomes.

CLADRIBINE

FDA Pregnancy Category D. First trimester: Avoid due to known teratogenicity in animal studies (skeletal and visceral malformations) and potential for MDS and AML. Second and third trimesters: Risk of fetal myelosuppression, intrauterine growth restriction, and preterm labor. Cladribine crosses the placenta and may cause fetal hematopoietic suppression.

Lactation Summary
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

No human data on excretion in breast milk. Based on drug properties, likely present; advise against breastfeeding during treatment and for at least 1 day after last dose. M/P ratio unknown.

CLADRIBINE

Contraindicated during breastfeeding. Cladribine is excreted into human milk; M/P ratio not determined. Potential for severe adverse effects in nursing infants, including myelosuppression and immunosuppression. Discontinue breastfeeding during therapy and for at least 7 days after last dose.

Pregnancy Dosing
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

No established dose adjustments for pregnancy; avoid use. Pharmacokinetic changes in pregnancy (increased volume of distribution, clearance) may alter exposure, but no data to guide adjustment.

CLADRIBINE

No established dose adjustments in pregnancy. Use is contraindicated. If unavoidable, lowest effective dose and close monitoring for maternal and fetal toxicity. Pharmacokinetic changes in pregnancy (increased volume of distribution, renal clearance) may reduce exposure; however, risks outweigh benefits.

Maternal Safety Status
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE
Category C
CLADRIBINE
Category C

Clinical Insights

TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE
CLADRIBINE
Clinical Pearls
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

Tipiracil hydrochloride/trifluridine (Lonsurf) is a combination oral cytotoxic agent used for refractory metastatic colorectal cancer and gastric cancer. Trifluridine incorporates into DNA, inhibiting thymidylate synthase; tipiracil inhibits trifluridine degradation by thymidine phosphorylase. Administer within 1 hour after morning and evening meals to reduce variation in exposure. Avoid severe neutropenia by monitoring CBCs before and after each cycle; hold for ANC <500/mm³ or febrile neutropenia. Use antiemetics as needed; nausea/vomiting occur in ~50% of patients. Dose reduction recommended for severe myelosuppression, including thrombocytopenia and anemia. No strong CYP interactions; avoid concurrent use of UGT1A1 or thymidine phosphorylase inhibitors? (limited data). Consider growth factor support for prolonged neutropenia.

CLADRIBINE

Cladribine is a purine nucleoside analog that causes lymphocyte depletion, effective in hairy cell leukemia and multiple sclerosis. Monitor for severe lymphopenia, opportunistic infections (e.g., herpes zoster, tuberculosis), and delayed myelosuppression. Do not administer live vaccines during or after treatment. Due to high bioavailability after subcutaneous administration, adjust dose for renal impairment. Hypersensitivity reactions may occur; premedicate with antihistamines if needed.

Patient Counseling
TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

Take each dose with a glass of water within 1 hour after breakfast and dinner; do not crush or chew tablets.,Swallow tablets whole; do not take if vomiting occurs after a dose—skip that dose and resume next scheduled dose.,Store at room temperature away from moisture and heat; keep bottle tightly closed.,Common side effects include nausea, vomiting, diarrhea, loss of appetite, fatigue, and low blood cell counts.,Contact healthcare provider immediately if fever, signs of infection (sore throat, cough), unusual bleeding/bruising, or severe tiredness occur.,Use effective contraception during treatment and for at least 6 months after the last dose for females and 3 months for males.,Avoid handling crushed or broken tablets; if contact occurs, wash skin thoroughly.,Do not breastfeed during treatment and for at least 1 day after last dose.

CLADRIBINE

Cladribine can significantly lower your white blood cell count, increasing infection risk. Report fever, chills, or sore throat immediately.,Avoid live vaccines (e.g., MMR, shingles) during and for at least 6 months after treatment.,You may experience fatigue, nausea, headache, or skin reactions at injection site. These are common but report severe symptoms.,Use effective contraception during treatment and for at least 6 months after the last dose. Cladribine may harm a fetus.,You will need regular blood tests to monitor your blood cell counts, liver, and kidney function.

Safety Verification

Known Interactions

TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE Risks3
Tipiracil + Pramipexole
moderate

"Tipiracil, a component of the combination chemotherapeutic agent Lonsurf (with trifluridine), inhibits thymidine phosphorylase and can also inhibit organic cation transporter 2 (OCT2). Pramipexole, a dopamine agonist used for Parkinson's disease and restless legs syndrome, is primarily eliminated renally via active tubular secretion mediated by OCT2. When coadministered, Tipiracil reduces the renal clearance of Pramipexole by inhibiting OCT2, leading to increased plasma concentrations of Pramipexole. This elevates the risk of dose-dependent adverse effects such as orthostatic hypotension, hallucinations, somnolence, and impulse control disorders."

Tipiracil + Prazosin
moderate

"Tipiracil inhibits thymidine phosphorylase, which is involved in the metabolism of prazosin, leading to reduced clearance and increased systemic exposure of prazosin. This can result in enhanced alpha-adrenergic blockade, causing profound hypotension, dizziness, and syncope, especially during initial dosing or dose escalation."

Tipiracil + Histamine
moderate

"The serum concentration of Histamine can be increased when it is combined with Tipiracil."

CLADRIBINE Risks3
Cabazitaxel + Cladribine
moderate

"The combination of cabazitaxel and cladribine may potentiate myelosuppression due to overlapping bone marrow toxicity profiles. Cabazitaxel, a taxane antineoplastic, inhibits microtubule disassembly, while cladribine, a purine analog, incorporates into DNA and induces apoptosis in dividing and resting lymphocytes. Concurrent use increases the risk of severe neutropenia, thrombocytopenia, and anemia, potentially leading to febrile neutropenia or bleeding complications."

Cladribine + Acetyldigitoxin
moderate

"Cladribine, a purine nucleoside analog with potent immunosuppressive properties, may reduce the pharmacodynamic effects of cardiac glycosides such as acetyldigitoxin. This interaction is hypothesized to occur through cladribine-induced modulation of myocardial cellular signaling pathways that decrease sensitivity to digitalis compounds, potentially leading to reduced inotropic efficacy. Clinically, this could manifest as diminished control of heart rate in patients with atrial fibrillation or worsening heart failure symptoms, particularly in those relying on acetyldigitoxin for rate control or inotropic support."

Pimecrolimus + Cladribine
moderate

"The risk or severity of adverse effects can be increased when Pimecrolimus is combined with Cladribine."

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Clinical Q&A

Frequently Asked Questions

Common clinical questions about TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE vs CLADRIBINE, answered by our medical review team.

1. What is the main difference between TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE and CLADRIBINE?

TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE is a Antineoplastic Agent that works by Trifluridine is a thymidine-based nucleoside analog that incorporates into DNA, interfering with DNA synthesis and function. Tipiracil hydrochloride inhibits thymidine phosphorylase, preventing trifluridine degradation and increasing its systemic exposure.. CLADRIBINE is a Antineoplastic Agent that works by Cladribine is a purine nucleoside analog that is phosphorylated intracellularly to its active triphosphate form, which inhibits DNA synthesis and repair, leading to cell death, particularly in lymphocytes. It also depletes adenosine deaminase (ADA) and accumulates in cells with high deoxycytidine kinase activity.. They differ in pharmacokinetic profiles, FDA-approved indications, and side effect profiles.

2. Which is stronger: TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE or CLADRIBINE?

Potency comparisons between TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE and CLADRIBINE depend on the specific clinical indication. These are both Antineoplastic Agent agents and are not directly interchangeable by dose. A physician or clinical pharmacist should guide any therapeutic switching decisions.

3. What is the standard dosing for TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE vs CLADRIBINE?

The standard adult dose of TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE is: 35 mg/m² orally twice daily on days 1-5 and 8-12 of each 28-day cycle. Maximum dose: 80 mg per dose.. The standard adult dose of CLADRIBINE is: 0.09 mg/kg/day IV over 2 hours for 7 consecutive days; or 0.14 mg/kg/day IV over 2 hours for 5 consecutive days (total dose 0.7 mg/kg per course).. Dosing should always be individualized based on indication, renal and hepatic function, age, and other patient factors.

4. Can you take TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE and CLADRIBINE together?

No direct drug-drug interaction has been formally documented between TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE and CLADRIBINE in current clinical databases. However, individual patient risk factors including other medications, organ function, and comorbidities should always be evaluated by a qualified healthcare provider.

5. Are TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE and CLADRIBINE safe during pregnancy?

The maternal-fetal safety profiles differ. TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE is classified as Category C. Trifluridine/tipiracil is embryotoxic and teratogenic in animal studies. In humans, avoid use during pregnancy; effective contraception required during treatment and for at least 6. CLADRIBINE is classified as Category C. FDA Pregnancy Category D. First trimester: Avoid due to known teratogenicity in animal studies (skeletal and visceral malformations) and potential for MDS and AML. Second and third. Always consult a maternal-fetal medicine specialist before taking either drug during pregnancy or lactation.