Location is one of the most practical factors when considering a clinical trial. Trials require regular visits to a study site — sometimes weekly during active treatment — so understanding where trials are conducted and what the logistics involve is important for making an informed decision.
How to Search by Location
Public trial registries like ClinicalTrials.gov and ClinicalTrialsFinder.org allow you to search by city, state, or country. Many trials are conducted at multiple sites simultaneously (multi-site trials), which means a study headquartered in New York may also have sites in Chicago, Los Angeles, London, and Sydney.
When searching, use your city or the nearest major city as a starting point. If few results appear, expand your search to the state or country level. Some conditions have fewer trials available, and you may need to consider travelling to a trial site.
Understanding Multi-Site Trials
Large Phase 2 and Phase 3 trials are typically conducted at dozens or even hundreds of sites across multiple countries. Each site follows the same protocol, so the study procedures are identical regardless of location.
Not all listed sites may be actively recruiting at the same time. Some sites open enrollment earlier than others, and some may reach their target enrollment and close while other sites continue recruiting. The study team at each site can tell you whether they are currently accepting new participants.
If a trial lists a site in your area, contact that specific site — they manage their own enrollment independently from the sponsor and other sites.
Travel Considerations
Clinical trial visits can range from monthly check-ups to weekly or even daily visits during intensive treatment phases. Before enrolling, understand the visit schedule and how it fits with your life.
Some trials offer travel stipends or reimbursement for transportation and accommodation. Ask the study coordinator about financial support during the consent process.
Telehealth is increasingly used in clinical trials for follow-up visits, questionnaires, and non-critical check-ins. Ask whether the trial offers remote visit options for any of the scheduled appointments.
If the nearest trial site is far from home, ask whether there is a closer site for the same study, or whether the study team can coordinate with your local doctor for routine monitoring between study visits.
Frequently Asked Questions
What if there are no trials near me?
Expand your search to the state or country level. For rare conditions, you may need to travel to a specialised centre. Some trials cover travel costs. You can also set up email alerts to be notified when new trials open at locations closer to you.
Can I participate in a trial in another country?
In some cases, yes. International multi-site trials may accept participants from different countries. However, this adds complexity around travel, insurance, and follow-up care. Discuss this with the study team.
How often will I need to visit the study site?
This varies widely by trial. Phase 1 trials may require weekly or more frequent visits. Phase 3 trials may require monthly visits. The protocol and consent document will specify the exact visit schedule.
Can my local doctor help with trial monitoring?
Sometimes. Some trials allow certain tests and check-ups to be done by your local doctor, with results sent to the study site. This is more common for trials with long follow-up periods. Ask the study coordinator about this option.