Questions to Ask Before Considering a Cancer Clinical Trial

A clinical trial decision can involve unfamiliar science, time-sensitive medical choices, and practical responsibilities for the patient and family. A good conversation should do more than explain the study treatment. It should help you understand what is known, what remains uncertain, what alternatives exist, and what daily life may look like during participation.
Bring written questions and take notes. With the patient's permission, a family member or caregiver can listen, help remember details, and ask for clarification. It is reasonable to ask the team to explain a term again or provide information in your preferred language.
Key Takeaways
- Ask about the exact purpose of the study and why the research team believes you may qualify.
- Compare the trial with available treatment and supportive-care alternatives.
- Understand the schedule, procedures, risks, costs, and responsibilities before deciding.
- Clarify how urgent symptoms and routine questions will be handled.
- Participation is voluntary, and informed consent should continue throughout the study.
Questions about the purpose and evidence
- •What is the main question this study is trying to answer?
- •What phase is the study, and what does that mean for this specific protocol?
- •Is the study treatment approved for another use, or is it investigational in all settings?
- •How many people have received this drug or combination?
- •What results or evidence led to this study?
- •What is not yet known?
Early findings, laboratory research, or results in another cancer can provide a rationale without proving that the treatment will help in this setting. Ask the investigator to separate established facts from hypotheses.
Questions about eligibility and screening
- •Which criteria appear to fit my situation?
- •What might prevent me from participating?
- •What records, scans, pathology, or biomarker results do you need?
- •Will I need a new biopsy or central laboratory testing?
- •What screening tests are required, and how long may the process take?
- •Is a study slot currently available for the cohort relevant to me?
Eligibility cannot be confirmed from a website description alone. Screening is protocol-specific, and study status can change.
Questions about treatment assignment
- •Will everyone receive the investigational treatment?
- •Is the study randomized? If so, what are the groups and the chance of assignment to each?
- •Is the study blinded?
- •Could a placebo be used, and what other care would that group receive?
- •Can treatment assignment change if my cancer progresses or I have adverse effects?
If a comparison group is part of the study, ask why it is necessary and what treatment it receives. Do not assume that “trial†always means access to the investigational drug.
Questions about risks, benefits, and alternatives
- •What side effects have been observed, and which may be serious?
- •What risks are expected from biopsies, imaging, blood draws, or other procedures?
- •What symptoms require an immediate call or emergency care?
- •What possible benefits are being studied, and is direct benefit uncertain?
- •What are my options if I do not participate?
- •Could taking part affect the timing or availability of another treatment?
No responsible research team can promise benefit. The consent discussion should present reasonably foreseeable risks and available alternatives in understandable language.
Questions about visits and daily life
- •How often are visits, especially during the first cycles?
- •How long does each visit usually take?
- •Which tests must be performed at the study site?
- •Are extra blood draws, overnight observation, diaries, devices, or questionnaires required?
- •Can I travel during the study?
- •Will I need a caregiver or driver for certain visits?
- •What happens if weather, illness, transportation, or another problem causes a missed visit?
Ask for a calendar or schedule of activities. Knowing the demanding days in advance can help you plan work, childcare, transportation, and support.
Questions about cost and privacy
- •Which items are paid for by the study sponsor?
- •Which routine-care items may be billed to me or my insurance?
- •Are travel, parking, meals, lodging, or other expenses reimbursed?
- •Could reimbursement affect taxes or benefits?
- •How will my medical information and research samples be used and protected?
- •Will genetic testing be performed, and could samples be used for future research?
Coverage differs by study and insurance plan. Ask for the appropriate financial or billing contact rather than relying on assumptions.
Questions about communication and what happens later
- •Who is my main contact during business hours and after hours?
- •How will the study team coordinate with my treating oncologist?
- •Who manages health problems unrelated to the study?
- •What happens when study treatment ends?
- •Will I receive information about study results?
- •Can I withdraw, and what follow-up may still be requested for safety?
Keep the consent form and contact information where you and your caregiver can find them.
How our FCTG team can help
At FCTG, we encourage patients and caregivers to bring questions to every research conversation. During an initial review, our research access team explains which information is still needed, and our physician investigators review whether a study may warrant formal screening. Only the protocol-specific consent and screening process can establish eligibility and participation requirements.
Interested in evaluating clinical trial options?
Our medical research team can help review available oncology research options.
Trusted Sources & Further Reading
The information provided by Florida Clinical Trials Group is for general educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Clinical trial availability and eligibility vary by study and participant. Submission of information or completion of an initial review does not guarantee eligibility, enrollment, access to an investigational treatment, safety, or benefit. Patients should discuss all medical care and clinical trial decisions with their treating physician and the qualified research team.



