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Safety & Legitimacy

Verify the study, the site, the contact path, and the paperwork before sending private information or scheduling a visit.

Folder and paperwork used to verify a research study before sharing personal information.
Verification should happen before records, lab reports, ID documents, or detailed medical history are sent.

Identity checks before sharing records

Start with the official study title and NCT number. Search the NCT number yourself and compare the condition, sponsor, study phase, recruitment status, locations, and contacts. If the recruiter gave you a different site name or city than the public listing, ask why. A study can have multiple locations, but the explanation should be clear.

Use the research site’s official website or main phone number when possible. Call the main line and ask to be transferred to the research department or study coordinator. This matters when a recruiter contacts you from a general email address, text message, social-media ad, or third-party recruitment platform.

Check the email domain. A hospital, university, or research site often uses its own domain. A third-party recruiter may use a different domain, which can be legitimate, but the recruiter should be able to explain who they work for, which site they are recruiting for, and how your information is transferred to the site.

Information a real site should provide

  • Official study title or NCT number.
  • Research site name, address, and main phone number.
  • Name or role of the person calling you.
  • Principal investigator or study doctor, when applicable.
  • Whether the site is a hospital, university, private research site, or clinic.
  • How consent materials will be provided.
  • How medical records, lab reports, or ID documents should be sent.
  • Whether screening is paid and how payment is issued.
  • After-hours contact instructions for studies involving medication, dosing, devices, or symptoms.

Private information to protect

  • Government ID photos or ID numbers.
  • Insurance cards and member numbers.
  • Full medical records.
  • Lab reports with identifying information.
  • Medication lists tied to date of birth or address.
  • Social Security number or tax forms before payment setup is actually required.
  • Bank account information.
  • Portal login codes, verification codes, or one-time passwords.

Consent form checks

The consent form should identify the sponsor, investigator, site, procedures, expected time commitment, known risks, possible discomforts, privacy protections, compensation terms, injury contact process, and withdrawal process. Read the payment section line by line. Look for language about partial payment, missed visits, completion bonuses, reimbursement, taxes, processing time, and payment method.

For drug, device, vaccine, imaging, procedure, or overnight studies, read the risk section and the schedule of events together. The schedule of events may show repeated blood draws, ECGs, urine tests, pregnancy tests, symptom checks, dosing days, confinement, follow-up calls, or diary requirements that are easy to miss in the summary.

Ask who to contact if symptoms occur after hours. A study involving dosing, medication changes, devices, or procedures should not leave you with only a recruiter’s phone number for urgent questions.

Payment warning signs

Do not pay to join a study. Be cautious with requests for deposits, equipment fees, application fees, bank logins, gift-card purchases, or money transfers. Payment should flow from the study to the participant, usually after screening or study visits.

Pressure warning signs

Slow down if you are pushed to sign immediately, told not to ask questions, denied time to read consent materials, discouraged from contacting the site directly, or told to send sensitive documents through ordinary email without explanation.

Communication warning signs

Be cautious when the contact cannot identify the site, uses inconsistent study names, avoids the NCT number, changes payment details, or gives a phone number that does not connect to a real research office.

When something changes after screening

Ask for clarification when the visit count, payment schedule, restrictions, or required procedures change after your first call. Protocol details can be clarified during consent, but major changes should be explained in writing. Keep copies of emails, visit schedules, payment descriptions, and consent documents. If you decide not to continue, ask whether any screening payment or reimbursement is still owed and how it will be processed.

How to verify a recruiter without accusing anyone

Use neutral language. Ask, “Can you give me the official study title, NCT number, and the name of the site where screening happens?” Then ask, “If I call the main number for the site, what department should I ask for?” A legitimate recruiter should understand a participant’s need to verify the contact path before sharing records.

If the recruiter uses text messages, ask whether there is also an official email address or secure portal. If the recruiter works for a recruitment vendor, ask which research site receives your information and whether the site can confirm the recruiter’s role.

Before sending documents

  • Confirm the study title and NCT number.
  • Confirm the site name and address from an independent source.
  • Call the site’s main number if the contact came from an ad, text, or social media.
  • Ask whether records go through a secure portal, fax, encrypted email, or direct records request.
  • Ask who can see the records, which records are needed, and whether a narrower document would satisfy the screening question.
  • Ask whether a narrower record, such as a medication list or specific lab result, is enough.

Before signing consent

  • Read the procedure schedule and the payment section.
  • Ask about risks tied to medication, devices, procedures, imaging, or blood draws.
  • Ask whether study-related injury care is addressed in the consent form.
  • Ask who to call after hours.
  • Ask how withdrawal works and what follow-up is requested after withdrawal.
  • Ask whether your regular clinician should review any medication hold or washout.

Handling abnormal results

Screening can uncover blood pressure issues, ECG findings, lab abnormalities, pregnancy results, or other information that affects eligibility. Ask how results are communicated, how quickly you are notified, whether you receive copies, and whether results can be sent to your clinician. Ask whether the site provides medical interpretation or only tells you to follow up with your own clinician.