Study: Cancer Jab Eliminates Tumors in Patients

Is amivantamab a genuine breakthrough for head and neck cancer patients or a promising drug that demands cautious optimism?
Study: Cancer Jab Eliminates Tumors in Patients
Above: A tumor is detected using an MRI at the radiology department of the University Medicine in Rostock, Germany, on Nov. 17, 2017. Image credit: Bernd Wüstneck/picture alliance/Getty Images

The Facts

  • Results from the international OrigAMI-4 trial, conducted across 55 hospitals in 11 countries, showed that the drug amivantamab shrank or eliminated tumors in 43 of 102 patients with head and neck cancer that had stopped responding to chemotherapy and immunotherapy.
  • Of the 43 patients who responded, 15 saw their tumors disappear entirely and 28 experienced significant shrinkage. Tumors began responding within about six weeks, and patients lived a median of 12.5 months after starting treatment.
  • Amivantamab, developed by Johnson & Johnson, targets cancer in three ways: blocking the EGFR protein that promotes tumor growth, inhibiting the MET pathway that cancer cells use to evade treatment, and activating the immune system against tumors.

Sources Split


The Spin


Narrative A

Amivantamab is a genuine breakthrough for head and neck cancer patients who've exhausted every other option — tumors shrank in more than a third of patients, and survival stretched to a median of 12.5 months versus the typical three to six. A quick five-minute injection every three weeks with minimal side effects makes this treatment far more livable than chemotherapy, and it has the potential to help thousands of patients annually.

Narrative B

Amivantamab's trial results deserve cautious optimism, not celebration — only 15 of 102 patients saw tumors fully disappear, and the real test comes when this drug moves beyond tightly controlled trial conditions. The subcutaneous delivery and mild side-effect profile are genuinely promising practical advantages, but headline numbers like "tumors eliminated" create pressure to expand use beyond patients most likely to benefit.


Metaculus Prediction

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© 2026 Improve the News Foundation.

All rights reserved.

Version 7.18.3