Biosimilars | Emerging Biosimilars | Oncology | Trastuzumab | Germany | Wave 2 | 2019

Celltrion’s Herzuma was the first biosimilar of Roche’s Herceptin, a blockbuster HER2-targeted therapy, to launch in Europe. A few months later, two additional trastuzumab biosimilars launched in Europe: Merck & Co.’s Ontruzant and Amgen’s Kanjinti. This series tracks uptake of these trastuzumab biosimilars and medical oncologists’ awareness of these agents in order to gauge their impact on the commercially lucrative breast cancer and gastroesophageal cancer markets. The series investigates perceptions of trastuzumab biosimilars, drivers of and barriers to their use, and future use expectations. Promotional efforts, prescriber and nonprescriber profiles, and benchmarking of these agents’ launch success versus other launched biosimilars are explored to better understand the dynamics of the German biosimilars market.


  • Are German medical oncologists aware of Herzuma, Ontruzant, and Kanjinti?
  • What are the drivers of prescribing of Herzuma, Ontruzant, and Kanjinti?
  • What is the current level of Herzuma, Ontruzant, and Kanjinti use, and how is it changing over time?
  • Are German physicians prescribing Herzuma, Ontruzant, or Kanjinti in combination with Perjeta?
  • Have physicians experienced pressure to prescribe Herzuma, Ontruzant, and Kanjinti?
  • What promotional messages are sales representatives using for Herzuma, Ontruzant, Kanjinti, and Herceptin?


Emerging Biosimilars (Germany) is a three-wave series based on primary research data collected at 1 month, 6 months, and 12 months post-commercial launch with German physicians. The research captures physicians’ awareness, perceptions, and usage of the launched product, as well as anticipated future trends. Insight is also provided on promotional efforts, prescriber and nonprescriber profiles, and benchmarking against other launched agents.


Wave 1: September 2018.

Wave 2: February 2019.

Wave 3: July 2019.




A survey of 60 medical oncologists.

Key metrics included

  • Unaided and aided awareness of Herzuma, Ontruzant, and Kanjinti.
  • Familiarity with and impressions of Herzuma, Ontruzant, and Kanjinti.
  • Prescriber and nonprescriber profiles.
  • Willingness to prescribe Herzuma, Ontruzant, and Kanjinti.
  • Performance of Herzuma, Ontruzant, and Kanjinti on key attributes.
  • Sales representative frequency, reach, and satisfaction.
  • Benchmarking against previously launched biosimilars.
Login to access report