Product image of Kanjinti (Trastuzumab) supplied by GNH India

Kanjinti

Active Ingredient:
Trastuzumab
Origin:
EU

Kanjinti (Trastuzumab)

Trastuzumab, the active ingredient in Kanjinti, is a monoclonal antibody presented as an intravenous solution for intravenous use. It targets HER2‑positive tumors and is employed in the treatment of certain breast and gastric cancers in adult patients.

GNH India supplies Kanjinti as a licensed, GDP‑compliant international pharmaceutical supplier serving oncology centres worldwide. The company adheres to stringent quality standards and provides cold‑chain logistics to ensure product integrity across global markets. All shipments comply with EU pharmacovigilance and import regulations, making Kanjinti readily available for clinical use.

Manufacturer / TM Owner

Amgen Europe B.V.

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Indications & Clinical Uses

Kanjinti (trastuzumab) is used in HER2‑targeted therapy for cancers that overexpress the HER2 receptor.

  • HER2‑positive breast cancer: improves disease‑free and overall survival in early and metastatic settings.
  • HER2‑positive gastric cancer: enhances response rates and prolongs survival in advanced disease.
  • Metastatic HER2‑positive breast cancer: provides clinical benefit when combined with chemotherapy.

How It Works

  • Trastuzumab binds with high affinity to the extracellular domain IV of the human epidermal growth factor receptor‑2 (HER2) on tumor cells. This blocks ligand‑independent HER2 signaling, inhibits downstream pathways such as PI3K/AKT and MAPK, and promotes antibody‑dependent cellular cytotoxicity by recruiting immune effector cells, leading to tumor cell death. The antibody also prevents HER2 dimerization, reducing proliferative signals, and can enhance the efficacy of concomitant chemotherapeutic agents.

Side Effects

Trastuzumab may be associated with a range of adverse reactions, varying from mild to severe.

Common Side Effects

  • Infusion‑related reactions (fever, chills, flushing)
  • Nausea
  • Fatigue
  • Diarrhea

Serious or Rare Side Effects

  • Cardiac toxicity (decreased left ventricular ejection fraction)
  • Severe infusion reactions (anaphylaxis, bronchospasm)
  • Pulmonary toxicity (interstitial pneumonitis)
  • Hematologic abnormalities (thrombocytopenia, neutropenia)

Precautions & Warnings

When using Kanjinti, clinicians should observe several safety measures to minimize risks.

  • Cardiac monitoring: assess baseline and periodic left ventricular function.
  • Infusion precautions: administer under medical supervision with pre‑medication as needed.
  • Pregnancy and lactation: avoid use; safety not established.
  • Hypersensitivity: discontinue if severe allergic reaction occurs.
  • Concomitant anthracyclines: avoid concurrent use due to increased cardiotoxicity.
  • Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Avoid Interactions

Trastuzumab can interact with other medicines, influencing safety or efficacy.

Major Interactions (Avoid)

  • Anthracyclines (e.g., doxorubicin): combined use heightens risk of cardiac damage.
  • Live vaccines: immunosuppression may increase infection risk.
  • Other HER2‑targeted agents (e.g., pertuzumab) used simultaneously: overlapping toxicities.

Moderate Interactions (Monitor Closely)

  • Cardiotoxic drugs (e.g., cyclophosphamide): monitor cardiac function.
  • Hormonal therapies (e.g., tamoxifen): observe for additive side effects.
  • Anticoagulants: watch for bleeding if thrombocytopenia occurs.

Frequently Asked Questions

Kanjinti contains trastuzumab and is indicated for the treatment of HER2‑positive breast cancer and HER2‑positive gastric or gastro‑esophageal adenocarcinoma. It is used in both early‑stage and metastatic disease to improve survival outcomes when given alone or with chemotherapy.

Trastuzumab binds to the extracellular domain of the HER2 receptor on cancer cells, blocking signaling pathways that drive tumor growth. It also recruits immune cells to destroy HER2‑expressing cells through antibody‑dependent cellular cytotoxicity, thereby reducing tumor proliferation.

The dosing regimen for Kanjinti is determined by the prescribing oncologist based on the patient’s body weight, indication and treatment protocol. It is administered intravenously under medical supervision, typically following a loading dose and subsequent maintenance infusions as outlined in clinical guidelines.

Safety of Kanjinti during pregnancy or lactation has not been established. The product is generally avoided in pregnant or nursing women because potential risks to the fetus or infant cannot be ruled out. Consultation with a specialist is essential before any exposure.

To order Kanjinti, submit an enquiry on the 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, cold‑chain shipping details and necessary import documentation.

Kanjinti is a biosimilar to the reference product Herceptin (trastuzumab). Clinical studies have shown comparable efficacy, safety and immunogenicity profiles. Choice between the two often depends on pricing, supply logistics and institutional preference, while therapeutic outcomes remain similar.

Kanjinti must be stored refrigerated between 2 °C and 8 °C. It should be kept in its original container, protected from light, and must never be frozen or shaken. During transport, a validated cold‑chain system is required to maintain temperature stability.

Kanjinti is administered as an intravenous infusion. The initial loading dose is usually given over a longer period, followed by shorter maintenance infusions. Premedication such as antihistamines or corticosteroids may be used to reduce infusion‑related reactions, and the infusion is performed in a setting equipped for emergency management.

The most serious adverse events include cardiac toxicity, manifested as reduced left ventricular ejection fraction or heart failure, and severe infusion reactions such as anaphylaxis or bronchospasm. Regular cardiac monitoring and vigilant observation during infusions are essential to detect these risks early.

Kanjinti is contraindicated in patients with known hypersensitivity to trastuzumab or any of its excipients. It should also be avoided in individuals with uncontrolled cardiac disease, recent myocardial infarction, or those receiving concurrent anthracycline therapy due to heightened cardiotoxic risk.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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