Understanding Clinical Trials: Should You Enroll?

When standard treatment options are limited — or when a patient wants access to the most advanced therapies available — clinical trials often come up in conversation. But for most patients and families, the phrase "clinical trial" raises more questions than it answers.

What exactly is a clinical trial? Is it safe? Does enrolling mean you're a "guinea pig"? What are the real benefits and risks?

This guide answers those questions clearly, so you can have an informed conversation with your oncology team.

A clinical trial is a research study that tests whether a new treatment — a drug, a combination of drugs, a surgical procedure, a radiation technique, or another intervention — is safe and effective in humans.

Every cancer treatment currently in use was approved because it went through clinical trials. Trials are not experimental in the sense of being untested — they are the formal, regulated process by which medicine advances.

Clinical trials are conducted under strict oversight from the FDA, institutional review boards (IRBs), and the sponsoring institution. Participants have rights, including the right to withdraw at any time.

Phase I — Safety testing. A small group of patients (typically 20–80) receives the new treatment to evaluate safety, determine safe dosage ranges, and identify side effects. Phase I trials are often open to patients who have exhausted standard options.

Phase II — Efficacy testing. A larger group (typically 100–300) receives the treatment to evaluate whether it works and to further assess safety.

Phase III — Comparison testing. The new treatment is compared against the current standard of care in a large group (often hundreds to thousands of patients). This is the phase that typically determines whether a treatment gets FDA approval.

Phase IV — Post-approval monitoring. After a treatment is approved, ongoing studies track long-term effects and effectiveness in broader populations.

• Access to new treatments before they are widely available
• Close monitoring — trial participants are often seen more frequently and monitored more carefully than standard patients
• No cost for the experimental treatment — trial sponsors typically cover the cost of the investigational drug or intervention (though standard care costs may still apply)
• Contributing to research that will help future patients

• The new treatment may not be more effective than standard care
• Side effects may be unknown or unexpected
• Randomized trials may assign you to a control group receiving standard treatment rather than the experimental therapy
• Participation may require more frequent visits, travel, or time commitment
• Eligibility criteria can be strict — not every patient qualifies for every trial

Before agreeing to participate in a clinical trial, ask your oncologist and the trial team:

1. What is the purpose of this trial, and what phase is it in?
2. What are the possible benefits and risks compared to standard treatment?
3. Is this trial randomized? If so, what is the chance I receive the experimental treatment vs. standard care?
4. What will participation require of me — visits, tests, travel?
5. What costs will I be responsible for?
6. Can I leave the trial if I change my mind?
7. Will I be able to pursue other treatments if I leave the trial?
8. Who do I contact if I have concerns or experience side effects?

ClinicalTrials.gov — The official U.S. registry of clinical trials. You can search by cancer type, location, age, and other criteria. The database is comprehensive but can be difficult to navigate without guidance.

Your oncologist — Ask directly whether any trials are available for your diagnosis at your current institution or at affiliated centers.

NCI-Designated Cancer Centers — The National Cancer Institute designates cancer centers that meet rigorous standards for research and clinical care. These centers run a high volume of trials and often have dedicated clinical trials navigators who can help identify options. Find the full list at cancer.gov/research/infrastructure/cancer-centers.

Cancer-specific advocacy organizations — Organizations like the American Cancer Society (cancer.org), the National Coalition for Cancer Survivorship (canceradvocacy.org), AICR, and disease-specific foundations often maintain trial matching resources and can help connect patients with relevant studies.

Finding the right clinical trial requires more than a database search. It requires understanding your specific diagnosis, pathology, prior treatment history, and eligibility criteria — and then matching those against available trials, often across multiple institutions.

At Beacon Cancer Navigation, we help clients:

• Search and evaluate clinical trial options for their specific diagnosis
• Understand the implications of enrolling vs. not enrolling
• Prepare questions for the trial team
• Coordinate logistics if enrollment requires travel or additional appointments

• How to Get a Cancer Second Opinion (Without Offending Your Doctor)
• How to Prepare for Your First Oncology Consultation
• 20 Questions to Ask Your Oncologist
• Hospital vs. Independent Navigator: What's the Difference?
• National Cancer Institute: Clinical Trials Information
• American Cancer Society: Clinical Trials — What You Need to Know

Evaluating clinical trial options is one of the most complex decisions in cancer care. Beacon Cancer Navigation can help you research your options, understand the tradeoffs, and make an informed decision alongside your medical team.

Schedule a free consultation or call (303) 900-3199.