On 22 March 2018, the European Medicines Agency’s (EMA’s) Committee for Medicinal Products for Human Use (CHMP) adopted a positive opinion, recommending the granting of a marketing authorisation for the medicinal product Kanjinti, intended for the treatment of breast and gastric cancer.
The applicant for this medicinal product is Amgen Europe B.V., BREDA.
Kanjinti will be available as a powder for concentrate for solution for infusion (150 mg and 440 mg). The active substance of Kanjinti is trastuzumab, a monoclonal antibody (ATC code: L01XC03) that binds with high affinity and specificity to HER2 leading to the inhibition of proliferation of tumour cells that overexpress HER2.
Kanjinti is a biosimilar medicinal product. It is highly similar to the reference product Herceptin (trastuzumab), which was authorised in the EU on 28 August 2000. Data show that Kanjinti has comparable quality, safety and efficacy to Herceptin (trastuzumab).
It is proposed that Kanjinti should only be initiated by a physician experienced in the administration of cytotoxic chemotherapy, and should be administered by a healthcare professional only.
Detailed recommendations for the use of this product will be described in the summary of product characteristics, which will be published in the European public assessment report and made available in all official European Union languages after the marketing authorisation has been granted by the European Commission.
Summaries of positive opinion are published without prejudice to the Commission decision, which will normally be issued 67 days from the adoption of the opinion.
Metastatic breast cancer Kanjinti is indicated for the treatment of adult patients with HER2 positive metastatic breast cancer (MBC):
- as monotherapy for the treatment of those patients who have received at least two chemotherapy regimens for their metastatic disease. Prior chemotherapy must have included at least an anthracycline and a taxane unless patients are unsuitable for these treatments. Hormone receptor-positive patients must also have failed hormonal therapy unless patients are unsuitable for these treatments.
- in combination with paclitaxel for the treatment of those patients who have not received chemotherapy for their metastatic disease and for whom an anthracycline is not suitable.
- in combination with docetaxel for the treatment of those patients who have not received chemotherapy for their metastatic disease.
- in combination with an aromatase inhibitor for the treatment of postmenopausal patients with hormone-receptor-positive MBC, not previously treated with trastuzumab.
Kanjinti is indicated for the treatment of adult patients with HER2 positive early breast cancer (EBC):
- following surgery, chemotherapy (neoadjuvant or adjuvant) and radiotherapy (if applicable).
- following adjuvant chemotherapy with doxorubicin and cyclophosphamide, in combination with paclitaxel or docetaxel.
- in combination with adjuvant chemotherapy consisting of docetaxel and carboplatin.
- in combination with neoadjuvant chemotherapy followed by adjuvant Ontruzant therapy, for locally advanced (including inflammatory) disease or tumours >2 cm in diameter.
Kanjinti should only be used in patients with metastatic or early breast cancer whose tumours have either HER2 overexpression or HER2 gene amplification as determined by an accurate and validated assay.
Metastatic gastric cancer
Kanjinti in combination with capecitabine or 5-fluorouracil and cisplatin is indicated for the treatment of adult patients with HER2 positive metastatic adenocarcinoma of the stomach or gastro-oesophageal junction who have not received prior anti-cancer treatment for their metastatic disease.
Kanjinti should only be used in patients with metastatic gastric cancer (MGC) whose tumours have HER2 overexpression as defined by IHC2+ and a confirmatory SISH or FISH result, or by an IHC 3+ result. Accurate and validated assay methods should be used.