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What is informed consent?

2026-07-17 19:51:26

The definition and core content of informed consent

Informed consent refers to the process in which an individual makes a decision voluntarily based on full understanding of relevant information. It is common in medical, scientific research, legal and other fields. Its core includesinformation transparency(providing comprehensive and easy-to-understand information),Participate voluntarily(without coercion or inducement) anddecision-making ability(Participant has the ability to understand). In terms of primary and secondary structure, information disclosure is the basis, voluntariness is the key, and legal effectiveness is the guarantee. The following will focus on these three aspects and illustrate their importance with practical cases.

Specific requirements for information transparency

What is informed consent?

The first condition for informed consent isFull disclosure of information. For example, in a medical scenario, doctors need to explain the risks, benefits and alternatives of treatment options to patients, using plain language rather than professional jargon. If information is withheld or simplified, it may result in invalid consent. The 2016 "Regulations on the Prevention and Handling of Medical Disputes" clearly stipulates that medical institutions must bear legal liability if they fail to fulfill their notification obligations. In addition, the information transmission method also needs to be adapted to the audience. For example, for children or those with low educational levels, pictures, texts or videos can be used to assist explanations.

Guarantee mechanism for voluntary participation

Voluntariness emphasizes that participants are not subject to coercion or temptation of benefits. For example, in clinical trials, researchers must not use compensation to induce subjects to ignore risks. The "Belmont Report" of the United States proposed the principle of "respect for individuals" and required the avoidance of passive consent caused by power imbalance. In practice, this can be achieved bywritten signature,third party witnessand other means to ensure voluntariness. For example, Pfizer uses independent ethics committee supervision in its COVID-19 vaccine trials to ensure that subjects make independent choices.

Legal validity and ethical controversies

The legal effect of informed consent is embodied in a contract or agreement, and breach thereof may result in invalidity or compensation. For example, the “gene-edited babies” incident in 2018 was ruled illegal because full informed consent was not obtained. However, ethical controversies still exist. For example, if a patient is unable to express his or her wishes during emergency treatment, the laws of various countries usually allow "presumed consent." Japan's "Medical Law" stipulates that in an emergency, doctors can first treat the patient based on the best interests of the patient and complete the procedures afterwards.

Summary and industry practice

Informed consent is the cornerstone of respecting individual autonomy and must take into account the three elements of information, voluntariness and law. In industry practice, medical institutions, scientific research institutions and enterprises all need to develop standardized processes. Johnson & Johnson, for example, uses tiered informed consent forms in drug trials, detailing terms for different levels of risk. In the future, with the popularization of artificial intelligence-assisted decision-making, the form of informed consent may further evolve, but the core principles remain unshakable.

Citing sourcesRelated content
Regulations on the Prevention and Handling of Medical Disputes (China, 2016)Legal provisions on medical institutions’ notification obligations
The Belmont Report (USA, 1979)Ethical principles and voluntary requirements
Japan Medical LawPresumptive consent provision for emergency treatment

(Note: Pfizer, Johnson & Johnson and other companies mentioned in the article are only to illustrate industry practices and have no commercial promotion intention.)

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