Ethics of Self-Experimentation: Virologist’s Bold Move to Cure Cancer

A team of researchers argued that they did not need ethics committee approval because Dr. Beata Halassy, the lead scientist, conducted the experiment on herself. The concept of using specific viruses to target cancer cells is not new. For over 100 years, scientists have recognized that certain viral infections can shrink tumors. In 1951, it was shown that some strains of tickborne encephalitis viruses inhibit tumor growth in mice. However, the first large clinical trial using this concept occurred in 2004, involving a modified adenovirus named H101 to treat advanced cancer in China. The first FDA-approved trial, using a modified herpes virus called T-VEC for skin cancer, took place in 2015. Typically, these experimental therapies are limited to patients in advanced stages of the disease.

In Dr. Halassy’s case, she was diagnosed with breast cancer in 2016 and received chemotherapy and a mastectomy. After the cancer returned in 2018, she underwent another surgery. By 2020, facing a second recurrence, she opted for an unconventional treatment using viruses she cultured in her lab at the University of Zagreb, Croatia. She selected the measles and vesicular stomatitis viruses. The measles virus was suitable because breast cancer cells express specific proteins that allow the virus to enter. The vesicular stomatitis virus was chosen for its low danger to humans and previous evidence of efficacy against breast tumors in mice.

After administering the treatment, Dr. Halassy’s tumor shrank within two months, allowing for its surgical removal. She has remained cancer-free for nearly four years. The authors of the research suggest that this technique could be viable for treating patients at earlier cancer stages.

However, the research raises significant ethical concerns regarding self-experimentation. Conducting experiments on oneself can be risky and impairs objectivity in research. Dr. Halassy had a personal stake in the outcome, which could influence her evaluation of the results. While her expertise as a virologist may indicate a better understanding of the risks, bypassing established ethical standards undermines research integrity.

Self-experimentation has yielded mixed results historically. Some, like Barry Marshall, achieved scientific acclaim by demonstrating a link between Helicobacter pylori and peptic ulcers, leading to a Nobel Prize in 2005. Others, like Jesse Lazear, suffered tragic consequences. Although Dr. Halassy was fortunate to avoid severe repercussions, the long-term impact of her actions remains uncertain.

(Arun Panchapakesan is an assistant professor at the Y.R. Gaithonde Centre for AIDS Research and Education, Chennai. arun.panchapakesan@gmail.com)

Published – November 21, 2024 04:00 pm IST