Product image of Leuject (Cladribine) supplied by GNH India

Leuject

Active Ingredient:
Cladribine
Origin:
EU

Leuject (Cladribine)

Cladribine, the active ingredient in Leuject, is an antimetabolite presented as a subcutaneous injection for use in specific hematologic malignancies and autoimmune disease. It is employed in the treatment of hairy cell leukemia and in disease‑modifying therapy for multiple sclerosis.
GNH India supplies Leuject as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, oncology centres and pharmacies worldwide.

Manufacturer / TM Owner

Atnahs Pharma Netherlands B.V.

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Indications & Clinical Uses

  • Leuject (cladribine) is used in conditions where lymphocyte proliferation drives disease pathology.
  • Hairy cell leukemia: induces remission by selectively targeting malignant B‑cells.
  • Multiple sclerosis: reduces relapse frequency and disease activity by depleting pathogenic lymphocytes.

How It Works

  • Cladribine is a pyrimidine nucleoside analog that enters cells via nucleoside transporters and is phosphorylated to its active triphosphate form. The active metabolite incorporates into DNA, causing strand breaks and triggering apoptosis, particularly in dividing lymphocytes, thereby reducing abnormal cell populations in both malignant and autoimmune settings.

Side Effects

Cladribine may cause a range of adverse reactions, from mild to severe.

Common Side Effects

  • Injection site pain or erythema.
  • Fever or flu‑like symptoms.
  • Nausea or mild gastrointestinal upset.
  • Fatigue or weakness.
  • Transient lymphopenia.
  • Headache.

Serious or Rare Side Effects

  • Severe infections, including opportunistic pathogens.
  • Profound or prolonged lymphopenia.
  • Autoimmune hepatitis or liver dysfunction.
  • Secondary malignancies.
  • Severe skin reactions such as Stevens‑Johnson syndrome.
  • Cardiac arrhythmias in susceptible patients.

Precautions & Warnings

Cladribine requires careful monitoring and patient counseling before and during therapy.

  • Blood count monitoring: perform complete blood counts regularly to detect lymphopenia.
  • Infection risk assessment: evaluate for active infections before initiating treatment.
  • Renal and hepatic function: assess baseline organ function and adjust if necessary.
  • Contraception: advise women of child‑bearing potential to use effective contraception during treatment and for a defined period after.
  • Live vaccines: avoid administration while immunosuppressed.
  • Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Avoid Interactions

Cladribine may interact with other medicines that affect immune function or blood cell production.

Major Interactions (Avoid)

  • Concurrent myelosuppressive chemotherapy agents.
  • Live attenuated vaccines.
  • Potent immunosuppressants such as high‑dose corticosteroids.

Moderate Interactions (Monitor Closely)

  • Drugs that alter renal excretion (e.g., nephrotoxic agents).
  • Antiviral agents that may increase infection risk.
  • Anticoagulants, requiring periodic coagulation monitoring.

Frequently Asked Questions

Leuject, which contains the active ingredient cladribine, is indicated for the treatment of hairy cell leukemia, a rare B‑cell malignancy, and for disease‑modifying therapy in multiple sclerosis, where it helps reduce relapse rates by depleting pathogenic lymphocytes.

Cladribine is a pyrimidine nucleoside analog that is taken up by cells and phosphorylated to its active triphosphate form. This active metabolite incorporates into DNA, causing strand breaks and triggering programmed cell death, especially in rapidly dividing lymphocytes, thereby reducing abnormal immune activity.

The specific dose and schedule of Leuject are determined by the prescribing physician based on the patient’s diagnosis, disease severity, and individual health factors. Dosage decisions are made in accordance with approved clinical guidelines and local regulatory recommendations.

Cladribine’s safety in pregnancy and lactation has not been fully established. It is generally advised to avoid use in pregnant or breastfeeding women unless the potential benefits outweigh the risks, and to discuss alternative options with a healthcare professional.

To place an order, submit an enquiry on the Leuject product page at gnhindia.com, specifying the required quantity. GNH India works with hospitals, pharmacies, and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details (including cold‑chain if needed), and import documentation.

Compared with alternative therapies, cladribine offers a short‑course, targeted approach that can achieve durable remission in hairy cell leukemia and reduce relapse frequency in multiple sclerosis. Its dosing schedule is less frequent than many continuous immunosuppressants, but safety monitoring is essential due to immunosuppressive effects.

Leuject should be stored at 2‑8 °C (refrigerated), protected from light, and must not be frozen or shaken. Keep the product in its original packaging until use and follow any additional handling instructions provided by the supplier to maintain stability.

Leuject is given as a subcutaneous injection. The injection is performed by a qualified healthcare professional, following aseptic technique and the dosing schedule prescribed by the treating physician.

The most serious risks include severe infections due to profound lymphopenia, opportunistic infections, potential liver toxicity, and the rare possibility of secondary malignancies. Patients should be monitored closely for signs of infection, liver dysfunction, and abnormal blood counts throughout treatment.

Leuject is contraindicated in patients with active severe infections, those receiving live vaccines, and individuals with known hypersensitivity to cladribine or any excipients in the formulation. Caution is also advised for patients with significant renal or hepatic impairment.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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