From Nuremberg to Helsinki── reading the events and documents that gave birth to bioethics, in chronological flow

01Why study "history"?

Reading ethical text alone feels dry and abstract. "Informed consent", "respect for autonomy", "non-maleficence" — memorizing the words doesn't make them work in practice.

These principles were all made "after someone died". Operating them without knowing the blood and tears behind the text leads us to repeat the same mistakes. This piece reads the major bioethics documents in chronological order, showing what each was a response to.

021947 — The Nuremberg Code

During WWII, in Nazi concentration camps, human experiments were conducted on detainees. At Auschwitz and Dachau, hypothermia experiments, infectious-disease experiments, gas experiments, and sterilization experiments were carried out without consent. Many died; survivors carried lifelong injuries.

After the war, the Nuremberg Doctors' Trial (1946–1947) indicted 23 involved physicians; 7 were sentenced to death and 9 to prison. The verdict laid down 10 principles for human experimentation. That is the Nuremberg Code.

"The voluntary consent of the human subject is absolutely essential." — Nuremberg Code, Principle 1 (1947)

This first principle is the starting point of modern informed consent. The strength of "absolutely essential" reflects the fact that Nazi experiments were conducted without consent, killing thousands. It is the post-war society's response.

031932–1972 — The Tuskegee Syphilis Study

Another later-impactful event: the American Tuskegee Syphilis Study.

In 1932, the U.S. Public Health Service began a study in Tuskegee, Alabama, on 600 poor Black men. The purpose: "to observe how syphilis progresses in the body if left untreated."

The problems:

• Subjects were never told the true purpose (they were told they were "being treated for bad blood")
• Even after penicillin became standard care for syphilis in 1947, treatment was withheld from subjects
• The study continued for 40 years; many died, and infection spread to families

The exposure came in 1972 — 40 years after the study began. American society was shocked. The fact that "events like the Nazi case had also happened in America" shook the post-war ethical framework at its foundation.

041964 — The Declaration of Helsinki

The Nuremberg Code was part of a court ruling, not a self-regulatory document of medicine. The World Medical Association (WMA) felt the need to write, in their own words, a more practical ethical code.

In 1964, at the WMA General Assembly in Helsinki, the Declaration of Helsinki was adopted. Formal title: "Ethical Principles for Medical Research Involving Human Subjects."

Differences from the Nuremberg Code:

• Made by the medical community itself — not a transcription of court ruling
• Distinguishes therapeutic and non-therapeutic research — separating treatment trials from healthy-subject research
• Mandatory ethics committee (IRB / IEC) review before research starts
• Periodically revised — a document updated for the times. The 2024 revision was the 10th

The Declaration of Helsinki is the ethical foundation of modern clinical trials. The now-common-sense "a trial cannot begin without IRB approval" comes from here.

051979 — The Belmont Report

In response to Tuskegee, the U.S. Congress passed the National Research Act in 1974. The "National Commission for the Protection of Human Subjects of Biomedical and Behavioral Research" was established. After four years of deliberation, the commission published the Belmont Report in 1979.

The Belmont Report is a short document, but it established the three principles of modern bioethics:

These three principles became the parent of today's four bioethics principles (autonomy, non-maleficence, beneficence, justice). The Belmont Report sits as a "constitution" of modern research ethics.

06How the three documents relate

The "four pillars of patient-rights protection" introduced in Vol. 2 — autonomy, informed consent, protection of the vulnerable, justice — are the integrated modern operational form of these three documents. When memorizing text, also memorize the events behind each (Nazi experiments, Tuskegee, Diovan, Thalidomide — ). You won't forget.

07The Japanese context

Japan has its own context. Together with the global stream and Japan's own drug-disaster history (Thalidomide, SMON, HIV-tainted blood products), Japanese ethical guidelines accumulated:

• "Ethical Guidelines for Life Science and Medical Research Involving Human Subjects" (MEXT・MHLW・METI, 2021 integration) — the operational ruleset for research ethics in Japan
• GCP Ordinance (Good Clinical Practice) — the quality standard for clinical trials. Conforms to ICH-GCP
• Pharmaceutical Act, Medical Care Act, Personal Information Protection Act — the layered legal system binding research and clinical practice
• Society-level ethical codes — Japanese Medical Association, Japan Society of Pharmaceutical Medicine, JSCPT, etc.

That IRBs run as a matter of course in Japan and that trial data are rigorously managed is the accumulation of international consensus after Helsinki plus reflection on Japan's own drug-disaster history.

08What happens when "history" is forgotten

What happens when these documents and history are not studied? Unfortunately, recent cases exist:

• 2014 Diovan (valsartan) affair: pharma employees improperly involved in clinical-research data. The line between "research ethics" and "corporate ethics" was blurred
• 2018 He Jiankui case (China): gene-edited twins born. WMA and UNESCO strongly condemned. A failure of IRB review
• 2020 COVID-19 vaccine trials: debates over partial simplification of Helsinki principles due to urgency
• Ongoing issues: trials in developing countries (a Tuskegee-style structure), ethics review lagging behind AI drug discovery, the balance of commercialization and ethics

09Translating history into practice

For people working in pharma, how to connect this history to daily work:

• When reviewing trial design, think "as the subject" — the spirit of Nuremberg Principle 1
• Do not dismiss IRB / ethics committee remarks as formalities — the institutional weight Helsinki created
• Stay strongly aware of "vulnerable populations" — elderly, children, patients in low-income countries, patients with diminished capacity. The justice principle of Belmont
• Hand down past events inside the company — Tuskegee, Diovan, Thalidomide. Always tell them in new-hire training. An organization that forgets history becomes the star of the next event