Why Can Ethics Approval Alone Be Insufficient to Start a Study?

You Have Ethics Approval. Can You Start the Study Tomorrow?

Receiving ethics approval can feel like the finish line. Your protocol has been reviewed, your participant materials accepted, and the ethical issues have been addressed. It is tempting to open the recruitment form, contact participants, or begin collecting data immediately.

That can be premature.

Ethics approval answers an important question about the ethical acceptability of your research. It does not necessarily give you authority to use another organization's premises, approach people through its systems, access protected records, activate a research site, implement a regulated intervention, or begin activities before required agreements are in force.

The practical question is therefore not simply whether you have ethics approval. It is whether every prerequisite for the specific research activity you are about to perform has been satisfied.

Ethics Approval May Be Necessary Without Being Sufficient

What May Still Be Missing After Ethics Approval

Ethics approval has a defined scope

An ethics committee generally evaluates whether research is ethically acceptable under the standards and responsibilities assigned to that committee. For human research, this commonly includes risks and potential benefits, informed consent, participant selection, privacy and confidentiality, recruitment, participant welfare, and other issues affecting ethical conduct.

That review is substantial, but it does not give the committee authority over everything connected with the project.

An ethics committee ordinarily cannot grant rights that belong to another organization merely by approving your protocol. If a hospital controls access to its patients or records, a school controls access to its premises and internal systems, or a company controls confidential organizational data, authorization may also be needed from the body that actually possesses that authority.

This reflects the broader distinction between ethical approval and institutional authorization. Both can be necessary even when the underlying project is the same.

You may still need authorization from the research site

A host organization may need to determine whether it is willing and able to participate in the study. Depending on the research setting, this may involve assessing local staffing, facilities, resources, risks, privacy arrangements, responsibilities, costs, contracts, or compatibility with institutional policies.

This is not merely theoretical. Current UK Health Research Authority guidance, for example, states for relevant studies that research should not commence at participating organizations until the required local processes have occurred. For NHS organizations in England and Wales, this can include confirmation of capacity and capability, while other settings and UK nations use different permission arrangements.

Researchers should therefore determine what counts as authorization at the intended research site rather than assuming that an external ethics decision activates the site.

You may need permission before you can recruit through an organization

Suppose your ethics-approved protocol says that you will recruit teachers through a school's mailing list, nurses through a hospital's staff directory, or employees through a company's internal messaging platform.

The ethics committee can evaluate whether the proposed recruitment method is ethically appropriate. It does not follow that it controls the mailing list, directory, or messaging platform.

The organization may need to authorize use of those channels. Depending on the setting, a gatekeeper or data custodian may also control access without having authority to decide whether individual people participate.

This distinction matters because permission to approach an organization's members and participants' eventual consent are separate questions.

You may still need permission to access data, records, or biological materials

Ethical approval of a proposed data analysis does not automatically provide possession or lawful access to the data.

A hospital, government agency, school, archive, repository, company, or other custodian may impose a separate data-access process. Applicable privacy or data-protection law may also impose conditions independent of ethics review. For some projects, agreements governing data transfer, confidentiality, security, retention, or permitted uses must be completed before access occurs.

The same principle can apply to human tissue, biological specimens, restricted databases, confidential organizational documents, and other controlled materials.

Regulated research may require additional authorization

Some research is subject to regulatory requirements beyond ethics review. Depending on the jurisdiction and study, this can include clinical trials, medical devices, medicines, human tissue, radiation, genetically modified organisms, controlled substances, or other regulated activities.

The responsible regulator and required authorization depend on the research and location. An ethics committee's favorable decision should not be interpreted as a substitute for a legally required regulatory authorization unless the governing framework explicitly provides otherwise.

Contracts and agreements may need to be completed

Research involving several organizations often requires agreements defining responsibilities, finances, intellectual property, confidentiality, data processing or sharing, insurance or indemnity, publication, equipment, staffing, and other arrangements.

Some research systems expressly require agreements before site activity begins. The UK Health Research Authority, for example, states that for most research projects an agreement between the sponsor and each participating NHS organization is expected before research commences there. Depending on the study, execution of the agreement may confirm that the organization has the capacity and capability to deliver the project, although the exact point at which research activity may start can also depend on site initiation or sponsor processes.

The practical lesson is not that every study needs a contract. It is that ethics approval does not itself execute one when an agreement is required.

The sponsor or institution may have its own start conditions

A sponsor or responsible research institution may require additional checks before authorizing study commencement. These might concern researcher qualifications, training, insurance, safety, protocol registration, delegated responsibilities, availability of study materials, site readiness, or completion of required agreements.

For complex studies, there may even be a formal "green light," site initiation, or activation process after major approvals have been obtained.

These requirements relate to who remains accountable for the project. An ethics committee's decision does not transfer responsibility for managing the study away from investigators, institutions, sponsors, or other responsible parties.

Not every study has a long chain of approvals

The opposite mistake is to assume that every research project must pass through all of these processes. That is also incorrect.

An anonymous online survey conducted entirely within one institution may have a much simpler pathway than a multisite clinical trial. Some projects may qualify for exemption or another proportionate ethics process. Some institutions integrate governance checks with ethics review. Others separate them.

The required pathway should therefore be determined from the characteristics of the actual project, not from the longest approval pathway you have encountered elsewhere.

Ethics Approval on Monday Does Not Necessarily Mean Recruitment on Tuesday

Nothing in this sequence suggests that the ethics approval was incomplete or defective. It performed its function. The remaining steps concern authorities and responsibilities that were not granted to the ethics committee in the first place.

Why Researchers Sometimes Start Too Soon

Replace “Do I Have Approval?” With “Am I Authorized to Do This Activity Yet?”

Before taking the first research action after ethics approval, identify exactly what you intend to do next. Recruitment, entering a site, accessing records, transferring data, enrolling participants, and administering an intervention may have different prerequisites.

Then trace the authority for that activity.

A useful project file should therefore contain more than the ethics decision. Where applicable, retain the relevant institutional permissions, site confirmations, agreements, regulatory decisions, data-access approvals, and other evidence showing why the research was authorized to begin.

Before Starting Recruitment or Data Collection

Questions About Starting Research After Ethics Approval

Ethics Approval Is a Milestone, Not Always the Starting Signal

How to Cite This Guide

This guide is intended to be read, shared, and used in research, teaching, and academic work. If you draw on its ideas, explanations, or other content, please acknowledge the source by citing the guide. Doing so gives appropriate credit and helps your readers locate the original resource.