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Diversity in Clinical Trials:
A European Perspective on Global Progress and Strategies

Please note: The following information is based on a panel discussion under the same title, which you can access here: https://www.biomapas.com/diversity-in-clinical-trials-a-european-perspective-on-global-progress-and-strategies/ 

*Disclaimer: Recorded on 22 January 2025, the information presented in the webinar reflects the legal and regulatory framework applicable at that time. As the industry is continuously evolving, viewers are encouraged to stay updated with the latest developments and follow relevant authorities for the most current guidance.

The importance of diversity in clinical research 

Beyond complying with regulations, diversity in clinical trials ensures that medical advancements benefit all populations, reducing health disparities and improving global health outcomes. For example, only 8% of the global population makes up 80% of clinical trial participants, and more specifically in genomic research, 94% of data come from individuals of European descent. Therefore, the goal is to make sure that medical interventions are evaluated on a broad spectrum of individuals representing the overall population for whom this intervention is intended.

Historically, clinical trials have been criticized for their lack of diversity, often excluding underrepresented and underserved communities under the guise of ‘protection’. Such exclusion has led to gaps in the research and understanding of how diseases and treatments affect these populations. The challenge now is to transition from protection from research to protection through research by thoughtfully including these groups in clinical trials.  

The consequences of excluding these communities can exacerbate health disparities, leading to poorer health outcomes for underserved groups and missed opportunities for breakthrough therapies. As such, fostering inclusivity in clinical trials has become an essential priority for both regulatory bodies and research organisations worldwide. 

What are the key regulatory requirements related to diversity in clinical trials in the U.S and Europe?  

In the case of the U.S., the U.S. Food and Drug Administration (FDA) encourages diverse participation in clinical trials and issued guidance in June 2024 on Diversity Action Plans (DAPs) to improve the enrolment of participants from underrepresented populations in clinical studies. Additionally, the FDA calls for demographic-based enrolment targets, considering factors like age, sex, race, ethnicity, and geography.  

The guidance assists Sponsors of specific clinical studies involving drugs, biological products and devices and the submission of DAPs. The goal here is to ensure that individuals from underrepresented groups are included in these studies and ultimately improve understanding of treatment responses and healthcare outcomes. 

(Please note: As of February 2025, the FDA’s stance on the referred guidance is uncertain, please keep an eye on the most recent updates.) 

Europe’s population is incredibly diverse, covering many languages, cultures, and health experiences. However, there are no specific guidelines in the EU on diversity in clinical trials.  

The European Medicines Agency (EMA) follows ICH guidelines, which emphasize the need for study populations to reflect real-world demographics. To be exact, guidelines and regulations that are referenced by EMA describes the strategies that should be developed when planning clinical trial study populations.  

There are three ICH guidelines that address diversity:  

ICH E5 focuses on ethnic factors when accepting data from other countries, highlighting the need to understand genetic and cultural influences on drug effectiveness and safety.  

ICH E17 provides a framework for conducting clinical trials across multiple regions, ensuring data from diverse populations can be harmonized.  

ICH E8(R1), updated in 2022, emphasizes the importance of including diverse participants in trials.  

In addition to these guidelines, the EMA follows the EU Clinical Trial Regulation No 536/2014, to improve trial conduct across Europe.  

The UK’s Medicines and Healthcare products Regulatory Agency (MHRA) is also drafting guidance on Developing an Inclusion and Diversity Plan, further reinforcing the global momentum toward inclusive research. The MHRA’s approach looks at demographic and non-demographic factors influencing disease outcomes, emphasizing the need for clinical trials to be designed with a broader epidemiological perspective.  

“Looking ahead, we believe to see a much more stronger emphasis on diversity regulations. As stakeholders become more aware of healthcare iniquities and as the research in this area evolves, we may expect more requirements aimed at ensuring that all populations are represented.” – said Evelina Davidoniana, Head of Global Regulatory Affairs at Biomapas. 

The role of Sponsors in recruiting a diverse study population –

Where to begin? 

To ensure clinical trials accurately reflect real-world patient populations, Sponsors must leverage available data to inform diverse enrolment strategies. This requires understanding both of geography (where patients with a disease are located) and demography (who those patients are). Maximising the representativeness of study populations is essential to generating meaningful data applicable to a diverse group of  patients. 

A key component of inclusive research is the active engagement of patients and healthcare providers in trial design. Consulting these stakeholders early in the process helps shape effective enrollment and retention strategies. Additionally, Sponsors are encouraged to collect sufficient pharmacokinetic (PK), pharmacodynamic (PD), and pharmacogenomic data from diverse populations to inform analyses of drug exposure and response. Without these types of data, it becomes difficult to assess the safety and efficacy of new therapies across a diverse  patient population. 

Eligibility criteria should be scientifically justified and tailored to the specific disease area and clinical trial, rather than relying on historical, one-size-fits-all approaches. A shift towards default inclusivity is necessary, with exclusions requiring clear, evidence-based rationales – especially for vulnerable populations such as pregnant patients, individuals with disabilities, and those with psychiatric disorders. Selection bias can also limit diversity when assumptions are made about a patient’s willingness or ability to participate, leading to missed opportunities for engagement. 

As Léa-Isabelle Proulx, Patient Voice Partner at Roche, explains: “What we’ve seen oftentimes is a kind of copy-pasting from one protocol to the next, but that’s giving you the same population as well, right? And I think what is important – where we are – is talking with investigators, physicians, colleagues and patient organisations to try and switch this mindset.  

“How can we be as inclusive as possible? And what are the key exclusion criteria for that specific population rather than starting with a very narrow approach to inclusivity? It’s not a matter of relaxing the eligibility criteria – it’s to make sure that we have the key ones in place while remaining inclusive for a clinical trial. 

“I want to make sure that the distinction is clear, right? We’re not saying the trial is for everyone, we’re saying: Have a look.; Challenge yourself.; Can you justify every one of those exclusion criteria? And if not, then maybe it’s good to think of removing them from your list.” 

Many traditional trial sites lack the connection with diverse patient populations or the experience necessary to recruit them effectively. Therefore, Sponsors should proactively evaluate the burden of trial participation to improve access and retention, including logistical barriers such as travel costs, site accessibility, work conflicts, or caregiving responsibilities. Varying levels of health literacy and concerns over data privacy, particularly with genomic testing, further complicate recruitment efforts. Addressing these challenges requires Sponsors to expand trial footprints, partner with patient communities, and design trials with participant convenience in mind. 

Both the FDA and the UK MHRA emphasize the importance of patient partnerships in shaping recruitment and retention strategies. However, patient insights should not be limited to these aspects alone – patients and advisors play a key role in ensuring inclusivity from the earliest phases of drug development. Developing an inclusive research strategy from Phase 1 onward ensures a broader and diverse participation by Phase 3, without compromising data integrity. By proactively identifying and addressing recruitment barriers, Sponsors can build sustainable, patient-centred trials that lead to more equitable healthcare solutions.

What are the best strategies and innovations for advancing inclusive clinical research? 

Building strategies to enable diverse populations in clinical research requires a multi-factorial approach rather than relying on single solutions. Historically, isolated interventions have not solved the problem of underrepresentation. Instead, solutions must be designed from the outset, beginning at the protocol concept and drafting stage, rather than being retrofitted later when diversity challenges emerge. 

A fundamental consideration in designing inclusive clinical trials is ensuring flexibility in protocol development. This starts with identifying the study’s objectives and evaluating whether all planned assessments are necessary. While some data points may be desirable, it is critical to question whether they are essential to achieving the study’s primary goals. Simplifying protocols and reducing unnecessary complexity can lower barriers to participation, particularly for underrepresented populations who may struggle with rigid visit schedules and procedural burdens. 

One of the biggest challenges to inclusivity in clinical trials – whether ethnic, racial, geographical, gender or otherwise – remains the requirement for all visits to occur in a clinical setting. Innovative strategies must now include hybrid and flexible visit locations to reduce barriers to participation, considering that many assessments can be conducted outside of the traditional clinic or hospital setting. By designing trials that incorporate options such as home visits, telehealth consultations, or alternative locations that suit participants’ daily lives, Sponsors can significantly improve accessibility. 

Flexibility in visit locations also helps address broader issues of recruitment and retention. Many potential participants, especially those balancing jobs, caregiving responsibilities, or other commitments, cannot afford to take significant time off to visit a study site. Giving people the ability to participate from their home, office, or another convenient location helps eliminate built-in biases that favour only those who can comply with site-based visits. In turn, this flexibility helps ensure diverse populations remain engaged throughout the study, preventing high dropout rates and ensuring robust data collection. 

While digital tools like e-consent and electronic diaries are useful, service- and people-focused factors are critical, as trials ultimately involve human interactions between patients and physicians. Simply adding a technological solution does not automatically lead to inclusivity. Instead, solutions should be tailored to the specific needs of different populations and geographies, taking into account local regulations, infrastructure, and cultural considerations. 

Patients should have multiple pathways to enrol and remain engaged in trials, including traditional site-based visits, home-based participation, or a ‘third place’ – a location that is neither home nor clinic but provides a convenient alternative. This approach acknowledges that people’s lives evolve over time, and their ability to participate may change throughout a study. Providing diverse participation models ensures that more individuals can take part in research rather than excluding those who cannot fit rigid protocols. 

Beyond enrolment, the study should ensure retention throughout its duration. Telehealth, home nursing, and other forms of decentralised care can elevate continued engagement. Maintaining relationships between trial participants and their physicians, as well as broader research teams, is essential, even when studies employ hybrid or remote models. Building mechanisms to sustain patient interaction, such as remote study coordinators, helps preserve trust and continuity, addressing the retention challenge in long-term trials. 

Talking about the future of inclusive trials, Benjamin Benskin, Vice President Strategic Partnerships at Lightship, suggests: “I believe giving people more opportunities to participate in ways that are convenient for them is where success lies. We need to drill down into why we don’t have representative trials right now and then address how we can get there.   

“Enabling people to participate with more flexibility and on shorter notice will be key for clinical trials. This will be a challenge for the industry, but I truly believe that offering more choice and making participation more convenient will help enrol people in trials faster.” 

Looking ahead, the industry must be intentional about continuing to build diverse participation in clinical research. Recent regulatory guidance has acknowledged the problem and offered strategies to address it, but meaningful change requires ongoing commitment. The goal should not be merely to make trials available to some but to fundamentally shift how research is conducted so that most patients can and do participate.  

What does clinical trial diversity mean for emerging regions?

The case of Georgia 

Georgia, a country with over two decades of experience in conducting clinical trials, provides a unique perspective on inclusive clinical research. Despite being considered a developing country, over this period, Georgia developed a solid network of investigators, project managers, CRAs and study coordinators. In addition, there are many small, home-grown CROs as well as affiliates of larger CROs operating in the region. This success is largely due to the country’s transparent and favourable regulations. For instance, the Ministry of Health processes clinical trial approvals within just 20 calendar days, which has served as a significant market entry incentive for many organizations. 

Understanding diversity in Georgia begins by assessing economic factors. Dr George Ramishvili, Chief Executive Officer at New Hospitals Ltd in Georgia, explains: “Economics does play a role because, in a country with a GDP per capita of $5,000, we try to provide healthcare at the same level as a country with a GDP per capita of $50,000. There is a difference, and this difference is also evident when we talk about healthcare expenditures. In Europe, state healthcare spending could range from 5% to 12%, or even more, while in developing countries, it could be 3% or even less.” 

Access to healthcare is also a significant consideration, particularly in rural areas. In smaller countries such as Georgia, the population may gain from better geographical access to healthcare services, whereas larger countries may face challenges with accessibility due to the vast distances between rural areas and urban centres. Thus, in Georgia, it is comparatively easier for patients in remote areas to receive care than in larger countries. 

A further factor contributing to diversity in clinical trials is the variation in diet and nutrition. While Georgia is commonly classified as a European country, its dietary habits differ significantly from those of other European nations. This encompasses not only food but also the intake of vitamins and nutrients, which can influence the baseline health of patients in the region. The nutritional habits of Georgian patients may differ from those in other countries, potentially affecting their response to new study drugs. Such differences may be considered when designing clinical trials. 

In terms of lifestyle, the country has experienced a shift toward health consciousness in recent years. A growing number of individuals are engaging in physical activities and visiting fitness facilities, which contributes to improved overall health and may enhance patient adherence to clinical trial protocols. This change in healthier habits represents an important development for clinical trials in Georgia and arises as a potential consideration in other emerging regions. 

Additionally, the country’s healthcare system faces challenges in the reimbursement of modern biotech medicines, which can sometimes result in patients being undertreated. However, this situation also increases the willingness of patients to participate in clinical trials, as they gain access to treatments that may otherwise be unavailable. This could imply that the baseline health of these patients may be different in various countries, which could influence the outcomes of clinical trials. Data from patients who are not receiving the most current treatments may differ greatly from those receiving care in accordance with the latest guidelines. 

During the COVID-19 pandemic, the use of remote healthcare tools saw a significant increase in Georgia. However, from the perspective of Dr Ramishvili, the physical interaction between doctor and patient remains irreplaceable; while also considering the shorter distances and easier access to healthcare in the country, compared to larger regions. It is recommended that patients be brought to centralised medical centres for procedures to ensure services are delivered according to the highest standards and patient safety regulations. Even though telemedicine may be suitable for follow-up visits, initial consultations should involve an in-person visit to facilitate a comprehensive physical assessment of the patient, ensuring appropriate care. 

While Georgia may not exhibit the same level of diversity as larger countries, it still possesses a significant degree of diversity within its population. Various nationalities and patient groups reside in Georgia, each bringing unique qualities. This diversity should be accounted for when designing clinical trials, as it provides valuable insights into how different patient populations respond to treatments. 

Conclusion 

While regulatory bodies like the FDA and EMA are moving towards more inclusive research practices, achieving diverse participation in clinical trials and what that means in a global and regional context is open for discussion within the industry. Sponsors now must proactively include a wider range of demographic and non-demographic factors, such as socio-economic status, health literacy, and geographic differences, so that clinical trials can be offered to a wider group of people, while at the same time considering evolving patient needs.  

Europe and emerging regions like Georgia highlight the complexities that arise from different economic factors, healthcare systems, lifestyle and cultural differences. These populations present unique challenges in achieving diversity, but they also provide a chance to explore new ways of making clinical trials more inclusive. 

The future of diversity in clinical trials is strongly intertwined with continued innovation in recruitment strategies, trial designs, and patient engagement, ensuring that clinical research is representative of the populations it aims to serve. These lessons can be tailored to both global and European contexts to address gaps in treatment access and healthcare outcomes. 

Watch the Panel Discussion to learn more.

The Panelists

Agata Bloswick, Ph.D.

Chief Clinical Research Operating Officer, Biomapas  

Agata has been working in the clinical research industry for over 20 years. She has led project delivery, start-up, and regulatory and clinical operations in clinical trials, and is passionate about leveraging technology to streamline processes and expanding geographic diversity to deliver equitable healthcare services.

Agata actively supports women leaders and diverse voices in the healthcare industry, advocating that healthcare needs to be as diverse as the patients it serves. She is also focused on addressing the growing impact of climate change, including health equity gaps. Ultimately, her goal is to help clients achieve business success while providing patients with better healthcare options.

Dr George Ramishvili

Chief Executive Officer, New Hospitals Ltd  

As the CEO of New Hospitals Ltd since 2017, Dr Ramishvili is responsible for the strategy and development of the healthcare business within the PSP group. He oversees operations at New Hospitals, managing P&L, relationships with healthcare and regulatory authorities and other key operational functions.  

Previously to his current position, Dr Ramishvili worked at Roche, holding various positions in Georgia, including sales, marketing and country management roles focusing on improving  patient’s access to innovative medicines. In his last three years with Roche, he served as the General Manager for the Roche Kazakhstan affiliate. 

Léa-Isabelle Proulx

R&D Patient Voice Partner, Roche  

Léa is a scientist by training and has been working at Roche for over 10 years. In her role as Patient Voice Partner, she’s working closely with Project Teams in early clinical research to ensure patient communities are an active partner when teams are discussing clinical development strategy, taking into account a deeper understanding of patient and caregiver needs.   

Léa is a firm believer in developing trustful, long-term partnerships and collaborations between patients, industry and other stakeholders, where everyone has the opportunity to have their voice heard in order to improve outcomes that matter to patients and shape the healthcare ecosystem of tomorrow.   

Benjamin Benskin

Vice President Strategic Partnerships, Lightship 

Ben is a senior commercial and operational executive with over 20 years of industry experience. As the Vice President Strategic Partnerships at Lightship, he is responsible for leading and growing strategic commercial relationships with pharmaceutical, biotechnology and clinical research organisations to deliver hybrid and fully virtual clinical trials, and to address inequity in clinical trials.   

Prior to Lightship, he had roles in strategic and operational delivery of clinical trials and programmes  across the world in all phases and many therapeutic areas. Ben is skilled in interacting and building consensus for action and delivering across internal and external partners. 

Evelina Davidonienė

Head of Global Regulatory Affairs Operations, Biomapas  

Evelina has over 15 years of experience in regulatory affairs. She has extensive knowledge of the regulatory environment and deep expertise in regulatory strategies, external engagement, and advocacy activities.  

Before joining Biomapas, she drove teams in senior leadership positions at GSK. However, her strong understanding of compliance, quality, and market access has led her to a head of regulatory affairs operations role at Biomapas, where she excels as a passionate, communicative leader with an orientation for results, positive change and team growth. 

Our Commitment To Diversity

Recognising the growing need for clinical studies to encompass a wider representation of diverse communities, Biomapas incorporates diversity by leveraging our existing trial-naive sites across CEE, CIS, Georgia, and Eurasian regions, to provide representative, applicable, high-quality, integrated trial data. We ensure that clinical trial conduct is in line with the highest ethical and research standards compliance.  

Our range of services, including Biomapas Academy professional training, and consultancy to all members of the clinical research ecosystem: hospitals, healthand regulatory authorities, and dedicated Quality Assurance specialists, further establish our commitment to enhancing clinical research. We boast a dedicated network of clinical trial coordinators supporting research sites.  

We take our corporate commitment to Environmental, Social, and Governance (ESG) standards seriously, and we work closely with our vendors who meet the same standards. We also partner with our clients to support and help them achieve their diversity goals in clinical trials. As a responsible industry player, we align our efforts with clients to promote sustainability and ESG principles throughout our collaborations.  

We offer a wealth of expertise in innovation and ethical practices for all Biopharma companies seeking expansion into these regions. Together, we can shape the future of medicine.

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