Patient enrolment is where a great many clinical trials stall. Sites open, timelines slip, and the sponsor watches recruitment curves flatten out well below target. Video has become one of the more effective ways to widen the top of that funnel, but there is a catch that anyone new to the sector learns fast. In clinical research, you cannot simply commission a persuasive film and put it live. Every word, every image, and every claim has to clear a research ethics committee (REC) before a single participant sees it.
That constraint shapes everything about clinical trial recruitment video production in Ireland. It changes the tone, the script, the way you handle expressions of interest, and the honesty with which you depict what taking part actually involves. This piece walks through what it takes to produce enrolment content that reaches the right people and survives ethics review, drawing on how we approach this work at One Productions.
Why Clinical Trial Recruitment Video Is a Category of Its Own
It is tempting to treat a recruitment film as a marketing asset. It is not, and that distinction matters from the first briefing call. Marketing rewards persuasion, urgency, and selective emphasis. Clinical trial recruitment rewards clarity, balance, and informed choice. A film that oversells the benefit or downplays the commitment will not only fail ethics review, it can compromise the integrity of consent later in the process.
This is a different discipline from the other healthcare video work we discuss across our medical and healthcare production pillar. It is distinct from patient-education content that supports adherence after diagnosis, and distinct again from public-health campaigns designed to shift population behaviour. Here the single job is to help a defined group of people understand that a study exists, judge whether it might be relevant to them, and decide freely whether to find out more.
The Audiences You Are Actually Serving
Three stakeholders typically sit behind a recruitment brief, and each has a slightly different definition of success:
- Pharma sponsors need enrolment materials that protect the study’s reputation and support enrolment targets across multiple sites, sometimes across multiple countries.
- Contract research organisations (CROs) need content that is compliant, reusable, and quick to localise, because they are often coordinating recruitment across a portfolio of trials at once.
- Site and trial managers need something practical that a research nurse can share, that answers the questions patients ask most often, and that reduces the number of unsuitable enquiries.
A good patient recruitment video for clinical trials holds all three of those needs in view without letting any one of them pull the tone off balance.

Cancer Impact Video for Novartis Ireland from One Productions
Designing for Ethics Committee Approval From the First Draft
The single most useful thing you can do is design for approval from the outset rather than treating the REC as a hurdle to clear at the end. Committees in Ireland review recruitment materials against well-established principles, and if you understand those principles you can write to them from the first script draft.
What a Research Ethics Committee Looks For
When a committee reviews ethics committee approved video content, they are generally checking that the material:
- Describes the study accurately, including its purpose and phase, without implying proven benefit
- Avoids language that could be read as coercive, such as undue emphasis on payment or on the prospect of a cure
- States that participation is voluntary and that a person can withdraw at any time
- Presents the burdens and risks of taking part with the same weight as any potential benefit
- Does not target vulnerable groups in a way that could compromise free choice
- Uses plain, accessible language rather than technical or promotional phrasing
None of that prevents you from making a warm, human, well-produced film. It simply sets the boundaries within which the creative work happens. In practice, the constraints often improve the result, because they force a clarity that patients genuinely appreciate.
Build the Script Around the Approved Protocol
The protocol and the participant information leaflet are your source of truth. Every factual statement in the video should be traceable back to an approved document. We usually ask for the current participant information leaflet early, because aligning the video’s language to it makes the committee’s job easier and shortens review. When the film and the paperwork say the same thing in the same tone, the reviewer has far less to query.
The HPRA, Regulatory Context, and Working Within It
Alongside the ethics committee, clinical trials of medicinal products in Ireland fall under the oversight of the Health Products Regulatory Authority (HPRA), and, since the EU Clinical Trials Regulation came into force, within the Clinical Trials Information System framework. For recruitment content, the practical implication is that your material may form part of a wider submission and needs to be consistent with everything else the sponsor has filed.
This is where production experience earns its keep. A CRO video production for patient enrolment engagement runs more smoothly when the production partner understands version control, keeps a clean audit trail of script changes, and can turn around amends quickly when a reviewer asks for a specific wording change. You would be surprised how often a project is held up not by the creative, but by a slow, disorganised revision loop between too many parties.
Plan for Localisation Early
Multi-site and multi-country trials rarely need only one version. Subtitles, voiceover in additional languages, and site-specific contact details all need to be planned into the production from the start. Shooting and editing with localisation in mind, keeping on-screen text editable and contact details on a separate layer, saves considerable cost and time when the same clinical trial awareness video for Ireland has to be adapted for a partner site elsewhere.

Pharma sector video for IDA Ireland from One Productions
Honest Depiction of Trial Burden
This is the part that separates responsible recruitment content from the rest. Taking part in a trial is a real commitment. It can mean extra clinic visits, blood draws, questionnaires, a randomisation process the participant cannot control, and the possibility of receiving a placebo. A recruitment film that glosses over any of this is doing the participant a disservice and is unlikely to pass review.
The better approach is to be candid and let honesty do the reassuring. When a video explains clearly what a participant will be asked to do, how often, and for how long, two good things happen. First, the committee sees that consent is being supported rather than manufactured. Second, the enquiries you receive are better qualified, because people who self-select in have already understood the ask. Site managers consistently tell us that honest content reduces the volume of unsuitable enquiries and improves the quality of the ones that come through.
Tone: Informed Consent, Not Advertising
The register to aim for sits close to informed consent itself. Calm, respectful, factual, and human. Real research staff on camera, filmed in the actual environment where possible, tend to work better than polished actors, because authenticity reads as trustworthy. The goal is that a viewer finishes the film feeling informed and respected, not sold to.
GDPR and Handling Expressions of Interest
The moment a video invites someone to register interest, you have entered data protection territory. Every mechanism you offer, whether a landing page, a phone line, or a QR code, collects personal data about a person’s potential health status, which is a special category under GDPR. That data needs a lawful basis, a clear privacy notice, secure storage, and a defined retention period.
Practically, this means the call to action in the video and the page it leads to must be designed together. We work with sponsors and their data protection leads so that the expression-of-interest journey is compliant end to end. That includes plain-language consent at the point of enquiry, transparency about who will contact the person and why, and a route for someone to withdraw their details. Getting this right protects the participant and protects the sponsor from a problem that is entirely avoidable with a little forethought.
Where the Video Ends and the Screening Begins
A recruitment video should not attempt to pre-screen or diagnose. Its job is to inform and to invite. The clinical assessment of eligibility belongs with the trial team. Keeping that line clear in the content, and in the enquiry flow, keeps the ethics committee comfortable and keeps the process appropriate.

Cancer Impact Video for Novartis Ireland from One Productions
A Practical Production Sequence
For teams planning this work, a reliable order of operations looks like this:
- Gather the approved protocol and participant information leaflet as source material.
- Draft the script in plain language, mapped line by line to those documents.
- Agree tone, balance of benefit and burden, and the call-to-action mechanism internally.
- Submit the script and storyboard for ethics review, ideally before filming.
- Produce, keeping on-screen text and contact details editable for localisation.
- Route final cuts through the same reviewers, with a clean version history.
- Launch alongside a GDPR-compliant expression-of-interest journey.
Submitting the script before you shoot is worth stressing. Filming against an unapproved script risks costly reshoots if the committee requests substantive changes. A short delay at the paperwork stage saves a large one later.
Frequently Asked Questions
Do we need ethics approval before filming or only before broadcast?
Best practice is to obtain approval of the script and storyboard before filming, then submit the finished edit for confirmation. This avoids reshoots if a committee asks for wording changes, and it demonstrates to reviewers that recruitment material was designed responsibly from the start.
How long does ethics review of recruitment video content take?
Timelines vary by committee and submission cycle, so it is wise to build review time into the project plan rather than treat it as an afterthought. Aligning the script closely with the approved participant information leaflet tends to reduce the number of queries and speed the process.
Can we use real patients in a clinical trial recruitment video?
You can, with appropriate consent and careful handling, but many trials prefer to feature research staff and clear explanatory content instead, to avoid implying typical outcomes. Where patient voices are used, committees look closely at consent and at any suggestion of guaranteed benefit.
How do we handle expressions of interest in a GDPR-compliant way?
Health-related enquiry data is a special category under GDPR, so it needs a lawful basis, a plain-language privacy notice, secure storage, a defined retention period, and a clear route to withdraw. The video’s call to action and the landing page behind it should be designed together with your data protection lead.
Can one video serve multiple trial sites or countries?
Yes, if it is planned that way. Keeping on-screen text editable, contact details on a separate layer, and the master edit clean makes it straightforward to add subtitles, alternative voiceover, and site-specific information for a multi-site or international trial.
Getting the Balance Right
Effective clinical trial recruitment content lives in the space between reach and responsibility. It has to travel far enough to find the right participants, and it has to be honest enough to help those participants choose freely. Handled well, that balance is not a compromise. It is precisely what makes the content credible to committees, useful to site teams, and fair to the people it invites.
If you are a sponsor, CRO, or trial team planning enrolment materials that need to clear ethics review, we would be glad to talk it through. Get in touch with One Productions for a considered conversation about what your recruitment video needs to do and how to produce it properly.