Guide · Rare disease recruiting
Recruiting rare disease patients: an honest guide.
Rare disease studies succeed when the recruiter is honest up front about how hard the audience is to find, and then does the slow, person-by-person work of finding them. This guide is for researchers, agency teams, and brand teams planning qualitative research with rare disease patients and their caregivers.
With a common condition, the question is usually how fast you can fill the seats. With a rare one, the question is whether the right people exist in the markets and timeframe you need, and whether they are well enough, willing enough, and available enough to take part. Those answers are rarely known on day one. The sections below explain why, and what helps.
A count is not a patient
When a supplier quotes a database count for a rare condition, treat it as a starting point, not a promise. In rare disease, the people behind those numbers change quickly:
- Their disease progresses. This is the biggest reason counts run high. Many patients still on a list have progressed to the point where they are too unwell to take part, and others no longer fit the study's stage or severity criteria.
- Their treatment changes. Someone listed as "on Drug X" may have switched, stopped, or started a clinical trial.
- Some have passed away. This is a hard truth in many rare and oncology conditions, and old records are rarely cleaned up.
That is why we don't lead with a database number. Nobody has these patients sitting in a database, ready to go. With profoundly ill respondents there is never a guarantee of a full recruit: things come up that no one can anticipate, and the work takes time. So we tell you honestly what is realistic, ask for the time and flexibility to do it properly, and then work hard to beat it.
We never over‑promise and under‑deliver.
How the right patients actually get found
Rare disease recruiting is closer to matchmaking than to pulling a list. No single method works, so we use many at once, both traditional and non-traditional. It is grass-roots, time-consuming, multi-tier work, and it is what has proven most effective.
- People we already know. Past participants who qualified for similar studies, re-contacted and re-screened, since their situation may have changed.
- Existing databases and sample. Our own database, built since 1983, plus purchased sample where it fits. Every name is checked person by person, not taken at face value.
- Advocacy relationships and strategic partners who are close to a condition's community.
- Referrals. HIPAA-compliant referrals, and introductions from patients and caregivers, who often know others with the same condition.
- Advertising and social networking. Online and offline advertising, and outreach in the online communities where patients and caregivers gather.
- Direct outreach. Direct mail, plus CAN-SPAM-compliant email and fax campaigns.
- Client-provided lists, when a study allows them, handled under the project agreement.
When it's practical, we combine our outreach across several studies at once. That widens our reach for every client and makes each effort go further. In the end, what makes the difference is a recruiter who keeps working the problem: following up, asking for referrals, and staying flexible when the first plan doesn't fill the study.
Making sure the patient is real
Low incidence attracts people who will say anything to qualify, so every rare disease recruit should be verified, not just screened. Our best protection is where patients come from: the majority of our rare disease participants come through qualified physician referrals and patient advocacy relationships, so their diagnosis is confirmed before we ever speak with them. On top of that:
- Seasoned recruiters, not just a form. Experienced healthcare recruiters ask the follow-up questions a form can't: when and how the diagnosis was made, which doctor, which treatment and dose, and whether the answers hang together. Someone who has spoken with hundreds of patients can tell when a story doesn't fit.
- Photo ID and prescription labels when necessary, with private details covered.
- Duplicate and professional-respondent checks, so the same person isn't showing up under different names or in every study.
The goal is simple: the person in the interview is the person your screener describes.
Plan around the patient's life, not the other way around
Show rates in rare disease depend less on reminders and more on whether the study fits the patient's health and routine. A few things help a lot:
- Flexible scheduling. Avoid treatment days and the tired days that follow. Offer more than one time slot, including evenings.
- Make room for caregivers. Many patients rely on a spouse, parent, or adult child. Let them sit in or help with the tech if the study allows.
- Go to the patient. Online and phone interviews, or in-home visits, are often easier than travel.
- Check the tech in advance for online sessions, so the first ten minutes aren't spent on a camera that won't turn on.
- Over-recruit where practical. A patient's health and care needs can change overnight. Recruiting a few extra participants, when the study allows, means a last-minute cancellation doesn't cost you the interview.
- Respect the subject. Some topics, like end-of-life care or a hard prognosis, need extra care in how the invitation is worded and who makes the call.
Experience matters
Many rare and serious conditions affect how a person can take part, not just whether they qualify. An experienced recruiter hears these issues during screening and raises them early, so the study can adapt instead of losing a good participant:
- Dexterity. Conditions that affect the hands can make typing, tapping through a phone app, or keeping a diary a real challenge. Voice or video entries, or a caregiver who helps record, can make the difference.
- Vision. Low vision can make stimuli hard to read on a computer screen. Larger print, hard copies mailed ahead of time, or a moderator who reads concepts aloud can help.
- Hearing and speech. Some patients can't hear well or have trouble communicating. Captions, written answers, a caregiver who helps, or extra time in the session can make it work.
- Energy and focus. Fatigue, pain, or medication can shorten how long someone can stay engaged. Shorter sessions, breaks, or splitting one interview into two can help.
Our experience recruiting in these therapeutic areas lets us work as a collaborative partner in your research design, not just a recruiter. Knowing about these issues before fielding can be critical to a study's success. Finding out during the study, or after recruiting has begun, leads to schedule slippage and possibly additional costs. We raise them up front, so the method fits the patient, not the other way around.
What to tell us when you ask for a bid
The more we know up front, the more honest and useful our answer will be. A good bid request includes:
- The condition, and any stage, subtype, or severity requirements
- Treatment requirements (current, past, never treated, specific drugs)
- Who you need: patients, caregivers, or both
- Number of interviews, and any quotas
- Method: online, phone, in-home, or in-person, and the session length
- Markets, or whether it can be nationwide
- Fieldwork dates, and how much flexibility there is
- Whether proof of diagnosis or treatment is allowed
- The incentive you have budgeted
The single most helpful thing is flexibility. A little give on dates, quotas, or treatment criteria often makes the difference between a study that fills and one that doesn't. We will tell you plainly which of your criteria are likely to be the hard ones.
From our files
One of our more challenging recruits was for patients and caregivers facing end-of-life decisions. Studies like this can't be filled from a list. They take patient networking, careful wording, and seasoned recruiters who are empathetic, know how to listen, and take the time to let people share their story.
That time matters. Patients are often more comfortable opening up to a caring stranger than to the people closest to them. They don't have to protect anyone's feelings, and they feel safe saying what they really think. A recruiter who earns that trust on the phone is how a hard study gets filled, and how the interview that follows gets honest answers.
Conditions we have recruited for
A sample of the rare, oncology, and specialty conditions we have recruited patients and caregivers for:
Rare and orphan diseases
Oncology
Specialty and chronic conditions
Who we recruit within them: patients, caregivers and parents, the recently diagnosed, treatment-naive patients, treatment switchers, and people in late-stage and palliative care.
About RC Horowitz & Company
RC Horowitz & Company is a specialized healthcare recruiter focused on low-incidence and rare diseases. We have recruited for qualitative research since 1983, working with pharmaceutical companies and their agencies as a collaborative partner, not just a recruiter. Clients tell us what they value most is our honesty about hard-to-find audiences. Every study matters to us, because we are only as good as our last one.