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3 Clinic Ready Questions to Ask Your Oncologist About Clinical Trials

October 2, 2026

3 Clinic Ready Questions to Ask Your Oncologist About Clinical Trials

Patient asking oncologist about clinical trials

Ask your oncologist three things: whether a clinical trial exists that fits your cancer and profile, what the trial’s purpose and phase mean for someone in your situation, and what the honest risks, benefits, logistics, and costs will look like. These three questions open the door to a conversation that could change your path forward, and you deserve every answer, spoken plainly and with hope.

TL;DR:

  • Knowing the trial phase and clearly defined success outcomes helps determine whether it offers a realistic benefit compared to standard treatment.
  • Confirm whether your specific biomarkers, genetics, and treatment history meet the trial’s eligibility criteria before scheduling screenings.
  • Understand if the trial’s procedures and visits are manageable within your schedule, and request a written cost estimate covering all out-of-pocket expenses.
  • Verify the trial’s recruiting status on ClinicalTrials.gov using the NCT number and confirm eligibility screening steps with the trial site.
  • Comparing possible outcomes and risks of the trial with standard care informs a confident, personalized decision about participation.
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Table of Contents

Your priority checklist before the appointment

Walks in with a plan, not just a worry. Trials move fast, and your oncologist’s time is precious, so grouping your questions by theme helps you lead with what matters most and skip what does not apply to you.

Purpose and design

  • What is this trial testing, and what phase is it in? A phase 1 trial explores safety in a small group, while phase 3 compares a promising treatment against the current standard.
  • What outcome would count as success for someone with my diagnosis?

Risks and benefits

  • What side effects have shown up in people like me so far?
  • Could this trial help me more, less, or the same as standard treatment?

Eligibility

  • Do I qualify based on my biomarkers, stage, and prior treatments?
  • What is the trial’s NCT number, so I can look it up myself?

Logistics and time

  • How many visits, scans, or biopsies will this require, and where?
  • Will I need to travel, and how much time will this take each month?

Costs and insurance

  • Which costs does the trial sponsor cover, and which will my insurance see?
  • Can I get this cost breakdown in writing?

Privacy and withdrawal

  • Can I leave the trial later, and what happens to my care if I do?
  • Who protects my information, and who do I contact with concerns?

Next steps

  • Who is the trial coordinator, and how do I reach them directly?
  • When do I need to decide, and can I get a second opinion first?

Pro Tip: Bring a caregiver or friend to take notes, or ask permission to record the conversation. You will remember less than you think once the appointment starts.

Eligibility and screening: are you a fit for this trial

Every trial has a protocol that spells out exactly who qualifies, and it usually comes down to your diagnosis, stage, specific biomarkers, prior treatments, lab values, and other health conditions. A trial for a particular genetic mutation, for instance, may exclude you if you carry a different one, even within the same cancer type.

Ask your oncologist for the trial’s NCT number so you or a loved one can look up the full protocol independently. Also ask directly who will confirm your eligibility. A phone screening with a trial coordinator is often just the first step, and final eligibility usually requires a closer review by the trial physician and site-specific testing.

  • Ask whether your specific biomarkers or genetic mutations match the trial’s requirements.
  • Ask whether prior treatments you’ve already had could disqualify you.
  • Ask what labs, scans, or biopsies are needed just to confirm eligibility.

Understanding clinical trial eligibility before your appointment can help you ask sharper, more specific questions once you’re in the room.

Informed consent is not a signature on a form. It is a conversation that should continue throughout your time in the trial, and FDA guidance requires it to cover the trial’s purpose, realistic risks and benefits, available alternatives, how your information stays confidential, who to contact with questions, and your right to withdraw at any time without penalty.

Six informed consent topics for clinical trials

Ask your oncologist for individualized examples: what side effects have people with your specific diagnosis actually experienced, and what benefit is realistic to hope for, not just what’s theoretically possible. Ask who to contact if you have concerns outside the research team itself, such as an institutional review board or patient advocate.

Only a small percentage of adult cancer patients enroll in clinical trials, and talking with your oncologist is one of the strongest predictors of whether someone participates. That conversation you’re about to have may be the single biggest factor in whether this door opens for you.

Our guide on informed consent in clinical trials breaks down each required element in plain language.

Logistics and costs: get it in writing

Before you commit to anything, ask for the full picture of what this trial will actually demand from your life and your wallet. Visit frequency, required scans and biopsies, hospitalization risk, travel distance, and total time commitment all deserve direct answers, not vague reassurances.

  • Ask exactly how many visits per month the trial requires and where they happen.
  • Ask what scans, biopsies, or procedures are strictly for research versus part of your regular care.
  • Ask whether the site helps with insurance preauthorization or appeals if a claim is denied.
  • Ask whether travel and lodging reimbursements exist and how to document them.

Many trial costs are covered by the sponsor or your insurance, but routine care costs may still be billed to your plan, and out-of-pocket expenses can remain. Request a written breakdown that separates research-only procedures from routine care, so nothing surprises you later. Our page on clinical trial insurance coverage walks through what to verify with your payer before you sign anything.

Verifying the trial is real, current, and recruiting

Trial listings can lag behind reality, so verification matters as much as the initial conversation.

  1. Ask your oncologist for the trial’s NCT number and confirm its recruiting status on ClinicalTrials.gov, which lists site locations, protocol summaries, and current enrollment status.
  2. Ask who the trial coordinator is and request their direct phone number or e-mail.
  3. Remember that an initial phone screen only checks likely eligibility. Final sign-off typically requires a visit with the trial physician and site-specific testing.
  4. If you’re searching independently, call the NCI’s Cancer Information Service at 1-800-4-CANCER, or search ClinicalTrials.gov using your specific cancer type and location.

Pro Tip: Save the NCT number somewhere you won’t lose it. It’s the fastest way to cut through confusion if a listing changes or a site stops recruiting.

Turning answers into a decision you can trust

Once you have real answers, ask your oncologist to put the trial side by side with standard treatment options for someone in your exact situation. What does each path realistically offer, and what does each one cost you in time, risk, and daily life?

  • Ask your oncologist to compare expected outcomes between the trial and standard-of-care treatment.
  • Request a referral to the trial team or a patient navigator who can walk you through next steps.
  • Set a clear timeline for your decision so you don’t feel rushed or left waiting.
  • Consider a second opinion or reach out to a patient advocacy group if you want more support before deciding.

A free patient navigator can help translate all of this into a plan that fits your life, not just your diagnosis.

Two scripts and a checklist for the appointment

Two scripts and a checklist for the appointment — overview diagram

Try opening with: “Is there a clinical trial that fits my specific diagnosis and biomarkers?” Or: “If this were your family member, what would you want them to ask before joining a trial?”

Bring your pathology report, current medication list, written questions, a caregiver, and something to take notes with. Ask for written summaries of anything important, along with direct contact information for the trial coordinator.

— HCRF

How HCRF supports your trial journey

At the Hippocratic Cancer Research Foundation, we believe every patient deserves clear answers and a real path forward, not just hope dressed up as jargon. That’s why we fund the kind of bold, out-of-the-box cancer research at the Robert H. Lurie Comprehensive Cancer Center of Northwestern University that traditional grants often overlook, and why we build resources to help patients like you walk into that oncology appointment ready.

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  • Our guides on eligibility and informed consent break down what trials actually require, in language built for patients, not researchers.
  • Our patient navigator resources connect you with free support to find and evaluate trials.
  • Our events, including Cocktails for a Cure and HCRF’s 13th Annual Wings To Cure Gala, fund the research that makes new trials possible in the first place.

If you want to be part of carrying hope forward for the next patient asking these same questions, visit the Hippocratic Cancer Research Foundation to see how you can support the research behind tomorrow’s answers.

Essential resources to consult before you decide

This article is general information, not a substitute for advice from a qualified doctor. Consult a qualified healthcare professional about your own circumstances before acting on anything here.

Sources

FAQ

What is the 2 week rule for cancer?

This term is most often used outside the United States to describe a fast-track referral guarantee for suspected cancer cases. In the U.S. system, ask your oncologist directly about expected timelines for diagnostic follow-up and trial referral, since practices vary by institution.

What are good questions to ask an oncologist?

Start with whether a clinical trial fits your specific cancer and biomarkers, what realistic risks and benefits look like for someone like you, and what the trial will cost in time, travel, and money. The NCI’s own patient checklist also recommends asking who will oversee your care and how much time you have to decide.

How to find out about cancer trials?

Search ClinicalTrials.gov using your cancer type and location, or call the NCI’s Cancer Information Service for a free, tailored search. Your oncologist or a trial coordinator can also confirm current recruiting status once you find a listing that seems to fit.

Are cancer trials worth it?

Whether a trial is worth it depends entirely on your diagnosis, goals, and the specific trial’s design, so there’s no universal answer. What the evidence does show is that talking it through with your oncologist strongly predicts whether someone chooses to participate, which makes that conversation the real starting point.

Can I leave a clinical trial once I’ve joined?

Yes, participation is voluntary and you can withdraw at any time without losing access to standard care. FDA guidance requires that this right be explained clearly as part of your informed consent, so ask what happens to your treatment plan if you decide to stop.

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