When a serious cancer diagnosis struck our family—again—we searched clinical trial registries for trials designed with patients. Given the increasing evidence for the value of patient involvement in trial design, if we were going to consider a trial, we wanted to know if and how patients had been involved. Today, this search is impossible. In the future, we hope it can be routine. In this Patient Perspectives article, we provide the first published “call to action” for clinical trial registries to include (1) a filter that allows for efficient searching for clinical trials designed with patients and (2) structured information, in plain language, on how patients were involved. We propose that addressing these two gaps could accelerate clinical trials by enhancing clinical trial participation. We have included a plain language summary of this article in Multimedia Appendix 1.

Within our family, we have managed clinical trials, participated in clinical trials, and faced cancer diagnoses where our care has been directly enhanced by clinical trials. In our current situation, we already know we will be relying on evidence generated from forthcoming clinical trials. From these professional and personal experiences, we fundamentally understand that patient participation in cancer clinical trials advances cancer treatment [1,2]. However, for decades, most (92%‐98%) patients with cancer have not participated in clinical trials [1,2]. New ways to boost clinical trial participation are needed.

Importantly, when it comes to proposing potential solutions, we recognize that both nonpatient and patient barriers to trial participation must be taken into account. Notably, the main barriers occur well before a clinical trial is even offered to a patient [1]. That is, patients are not the main cause of low participation rates. The upstream nonpatient barriers can be structural (eg, access to a trial), clinical (eg, eligibility criteria) or doctor related (eg, offering a clinical trial) [1]. Indeed, when clinical trials are offered to patients with cancer, many (55%) agree to participate [1]. If and when a clinical trial offer is finally made to a patient, the patient may decline participation because of concerns related to treatment, trust, and the burden of participating [1]. In this traditional model, patients have not had an active and participatory role in finding clinical trials and in considering whether to participate. This traditional model can and should change. Our proposed innovations to clinical trial registries could positively disrupt this traditional model and help reduce both nonpatient and patient barriers.

In terms of nonpatient barriers, patients would not have to wait for clinical trials to “trickle down” to them through structural, clinical, and doctor-related barriers. Patients could have enhanced agency to find potentially suitable clinical trials designed with patients. They could find these trials more quickly, easily, cost-effectively, and independently via their own search of a clinical trial registry. For patients, self-searching for these trials, using a filter that matters to them, would be a new form of self-care. After all, it is patients who bear the greatest burden in a clinical trial. After patients found potentially suitable trials designed with patients, they could then work in partnership with their doctor to consider—from the medical and the patient perspective—whether to participate. Both perspectives can affect participation success (eg, recruitment and retention). As clinical trial registries were explicitly developed to allow patients to search for trials and as approximately half of registry users are patients [3], our call to action would help registries meet their original goals. Further, as anyone with access to the internet could search clinical trial registries, our proposal may also help break down diversity, equity, and inclusion barriers to clinical trial participation.

In terms of patient participation barriers, concerns about a trial may be reduced if potential participants knew that patients had been involved in trial design. Increasing evidence indicates that the “lived experience” from patient advisors can translate into a better “trial experience” for patient participants. For example, trials designed with patient input may be more clinically relevant, faster, less costly, and reduce the trial burden for participants [4-9]. Within our family, we have participated in patient advisory boards and have seen first-hand how patient input can enhance trial design. A protocol can go from good to great with patient input. If patients could access information on how patients had (or had not) been involved in a trial, we believe that this could affect their trust and interest in that trial.

Our call to action for a search filter and information on patient involvement in trial design aligns well with broader changes driving more involvement of patients in clinical research. For the first time, the Declaration of Helsinki, an internationally accepted and highly influential guideline on research ethics, now calls for researchers to involve patients meaningfully in trial design [10]. The ICH GCP (International Council for Harmonisation - Good Clinical Practice Guideline), issued by international regulators and adhered to by industry and nonindustry research sponsors, have recently been updated, with the new version explicitly calling for sponsors to involve patients in trial design [11]. Under the new European Clinical Trials Regulation, sponsors must also describe if and how patients were involved in trial design [12]. Importantly for both trial design and trial reporting, the new 2025 SPIRIT (Standard Protocol Items: Recommendations for Interventional Trials) [13] and CONSORT (Consolidated Standards of Reporting Trials) [14] guidelines now include specific items for reporting patient involvement in clinical trial protocols and publications.

If our call to action is taken up, patient involvement information in structured, plain language included in the clinical trial registry could build on the precedent set by The BMJ in 2014 [4]. To promote transparency and to avoid a tokenistic tickbox approach, The BMJ requires authors to include a patient and public involvement statement, which describes how patients were involved in the reported research. If the researchers did not involve patients, they must disclose that in their statement. As the patient and public involvement statement is included in the publication, readers (including patients) can readily identify if and how patients were involved. With more patients authoring publications [15], involving patients in trial design would make it more straightforward for these patient experts to meet authorship criteria. Further, transparency about early patient involvement would also facilitate research into the “patient advisor” to “patient author” journey. Given The BMJ’s intent to re-energize the Patients Included charter for conferences [16], we also encourage discussion as to whether the charter could extend to patients included in trial design. The earlier that patients and other stakeholders know about patient involvement in research, the better.

Without regulatory requirements and enforcement, a proposed change in clinical trial registry practices is unlikely to succeed unless key stakeholders see value in doing so. Our investigations have shown that the widely used registry ClinicalTrials.gov does not allow patients to search for clinical trials designed with patients; nor do other major registries managed by not-for-profit (0/18, 0%; Table 1) or for-profit (0/10, 0%; Table 2) organizations.

We recognize that resources would be needed to add a patient involvement search field to a registry and, ideally, to automate (eg, via human-in-the-loop artificial intelligence) the upload of patient involvement information from a protocol into a clinical trial registry. However, we anticipate that the benefits of these changes could outweigh the anticipated costs. For example, these changes might be paid for from the major financial benefits gained from increasing recruitment and retention, accelerating trial start-up and completion, and reducing protocol amendments and associated operational costs [5-8]. Additional benefits, across multiple stakeholders, could include the following:

As a family facing another serious cancer diagnosis, we are deeply grateful to all the patients, researchers, and sponsors who have and are enhancing cancer treatment through clinical trials. We respectfully call upon the clinical trial community, in its broadest sense, to consider the merits of enhancing clinical trial registries to enable patients to (1) search for clinical trials designed with patients and (2) find information on how patients were involved. From initial discussions within our family and, subsequently, with international thought leaders from patient advocacy, academia, publishing, and industry sectors, it appears our call to action has merit. We are now exploring how to move from a call to action to an action plan. While any action plan will require input from a broad stakeholder group, we propose that the following steps may help progress this initiative:

We recognize that many steps will need to be taken to respond to our call to action, but this publication is a tangible first step. As our family was reflecting on how easy it is to use filters to search for and access information that can affect our lifestyles (such as cars, hotels, and flights), we pondered when it will be just as easy to search for and access information that can literally affect our lifespans. Because, when it comes to patient involvement in clinical trial design, we sincerely hope that one day our family can say to other desperate families, “Seek and ye shall find.”