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Episode 406: Drug Resistance Biomarkers and Their Impact on Cancer Treatment Choices

Release Date: 03/13/2026

Episode 407: Pharmacology 101: CAR T-Cell Immunotherapy

The ONS Podcast

“You want to try to act quickly and be able to know what the pathways are for appropriate escalating when a patient is having symptoms that are reflective of cytokine release syndrome (CRS) or neurotoxicity. These toxicities are very manageable and treatable when recognized early. To summarize, choosing the right patient, knowing the toxicity profile for each product, and acting early is really what helps to prevent severe outcomes with chimeric antigen receptor (CAR) T-cell therapy,” Maribel Pereiras, PharmD, BCPS, BCOP, clinical pharmacy specialist at the John Theurer Cancer Center at...

Episode 406: Drug Resistance Biomarkers and Their Impact on Cancer Treatment Choices

The ONS Podcast

“Our goal of precision oncology has been to shift to tailored therapies that can help to improve treatment efficacy and ultimately improve patient outcomes. Resistance biomarker testing can help the care team to detect these genomic changes that the tumor may have acquired during therapy that makes the cells resistant to therapy. This information can be extremely helpful when we’re talking about making choices about second-line or subsequent-line therapy,” ONS member Danielle Fournier, DNP, APRN, AGPCNP-BC, AOCNP®, advanced practice RN at the University of Texas MD Anderson Cancer...

Episode 405: Long-Term Multiple Myeloma Considerations for Oncology Nurses

The ONS Podcast

“The disease is increasingly managed as a chronic condition rather than a diagnosis with an immediate terminal outcome. Particularly, with earlier and more effective and sustained treatment options, we can make this disease a very chronic, long-term, livable condition. I want to make sure that patients are aware that this is not a death sentence. This is something that patients can live with for the long term,” Ann McNeill, RN, MSN, APN, nurse practitioner at the John Theurer Cancer Center at Jersey Shore University Medical Center in Neptune, NJ, told Lenise Taylor, MN, RN, AOCNS®,...

Episode 404: Tailor Patient Treatment Education for Non-Oncology Indications

The ONS Podcast

“We print education sheets that we have, and we say, ‘Just ignore this part that says cancer. You’re getting this med but for a different indication.’ And then you have to really point out what our goals of care are. You’re using the information that, as oncology nurses, we like and love, but we’re having to cross it out and say, ‘Just read this portion and just do this here.’ And that can be challenging for the nurse and probably confusing for the patient,” ONS member Brandy Thornberry, RN, OCN®, outpatient infusion and VAD supervisor at Logan Health in Kalispell, MT,...

Episode 403: Pharmacology 101: Checkpoint Inhibitors

The ONS Podcast

“Because the premise of immune checkpoint blockade centers around elevating the immune function, we should always take a great deal of caution around those patients who have high immune risks. Those include patients with autoimmune disorders. That’s one of our biggest questions that we ask, usually every consult that we’re seeing with solid tumor. ‘Do you have any history of autoimmune disorders? Tell me a little bit more about it. Is it being treated? What are your symptoms like?’ And then also patients who have undergone organ transplants. Now, interestingly, this does include stem...

Episode 402: Radiation Site-Specific Side Effects: Head and Neck Cancer

The ONS Podcast

“It’s important to clarify that most patients will experience and at least some side effects—and often several. So prevention really means reducing severity, complications, and long-term impact rather than avoiding side effects altogether. This process starts before radiation begins and continues throughout the treatment and includes dental evaluation, baseline swallowing assessments, and thorough patient education,” ONS member Astrid Amoresano, RN, OCN®, lead oncology nurse specialist at New York Proton Center in New York, NY, told Jaime Weimer, MSN, RN, AGCNS-BS, AOCNS®, manager...

Episode 401: Multiple Myeloma Treatment Considerations for Oncology Nurses

The ONS Podcast

“You also want to deal with patient preferences. We do want to get their disease under control. We want to make them live a long, good quality of life. But do they want to come to the clinic once a week? Is it a far distance? Is geography a problem? Do they prefer not taking oral chemotherapies at home? We have to think about what the patient’s preferences are to some degree and kind of incorporate that in our decision-making plan for treatments for relapsed and refractory myeloma,” Ann McNeill, RN, MSN, APN, nurse practitioner at the John Theurer Cancer Center at Jersey Shore University...

Episode 400: Pharmacology 101: Radioimmunoconjugates

The ONS Podcast

“Radioimmunoconjugates work through a dual mechanism that combines immunologic targeting with localized radiation delivery. The monoclonal antibody components bind to specific tumor-associated antigens such as CD20, expressed on malignant B cells. Once found, the attached radioisotope delivers beta radiation directly to the tumor, causing DNA damage and cell death,” Sabrina Enoch, MSN, RN, OCN®, CNMT, NMTCB (CT), theranostics clinical specialist at Highlands Oncology in Rogers, AR, told Jaime Weimer, MSN, RN, AGCNS-BS, AOCNS®, manager of oncology nursing practice at ONS, during a...

Episode 399: National Hazardous Drug Exposure Registry

The ONS Podcast

“The United States does not have a national cancer registry. We have a bunch of state registries. Some of those registries do collaborate and share information, but the issue is the registries that do exist typically do not report cancer by occupation. So, we cannot get our arms around the potential work-relatedness of the health outcome given the current way the state registries collect information. What we’re trying to set up, is a way to make what is currently an invisible risk, visible,” ONS member Melissa McDiarmid, MD, MPH, DABT, professor of medicine and epidemiology and public...

Episode 398: An Overview of Multiple Myeloma for Oncology Nurses

The ONS Podcast

“[Multiple myeloma] is very treatable, very manageable, but right now it is still considered an incurable disease. So, patients are on this journey with myeloma for the long term. It’s very important for us to realize that during their journey, we will see them repeatedly. They are going to be part of our work family. They will be with us for a while. I think it’s our job to be their advocate. To be really focused on not just the disease, but periodically assessing that financial burden and psychosocial aspect,” Ann McNeill, RN, MSN, APN, nurse practitioner at the John Theurer Cancer...

More Episodes

“Our goal of precision oncology has been to shift to tailored therapies that can help to improve treatment efficacy and ultimately improve patient outcomes. Resistance biomarker testing can help the care team to detect these genomic changes that the tumor may have acquired during therapy that makes the cells resistant to therapy. This information can be extremely helpful when we’re talking about making choices about second-line or subsequent-line therapy,” ONS member Danielle Fournier, DNP, APRN, AGPCNP-BC, AOCNP^®, advanced practice RN at the University of Texas MD Anderson Cancer Center in Houston, told Jaime Weimer, MSN, RN, AGCNS-BS, AOCNS^®, manager of oncology nursing practice at ONS, during a conversation about drug resistance biomarker testing.

This podcast episode is sponsored by AstraZeneca. ONS is solely responsible for the criteria, objectives, content, quality, and scientific integrity of its programs and publications.

Music Credit: “Fireflies and Stardust” by Kevin MacLeod

Licensed under Creative Commons by Attribution 3.0

Episode Notes

This episode is not eligible for NCPD credit.
ONS Podcast™ episodes:

ONS Voice articles:

ONS Biomarker Database
Clinical Journal of Oncology Nursing article: Tumor-Agnostic Therapies Reshaping Cancer Care
ONS book: Understanding Genomic and Hereditary Cancer Risk: A Handbook for Oncology Nurses
ONS course: Genomic Foundations for Precision Oncology
ONS Genomics and Precision Oncology Learning Library
American Cancer Society Cancer Action Network:

Find out which states are currently discussing biomarker testing bills and how you can advocate for them through ONS.

To discuss the information in this episode with other oncology nurses, visit the ONS Communities.

To find resources for creating an ONS Podcast club in your chapter or nursing community, visit the ONS Podcast Library.

To provide feedback or otherwise reach ONS about the podcast, email pubONSVoice@ons.org.

Highlights From This Episode

“We know that biomarkers are playing an ever more important role in cancer care, and really, their use can range anywhere from helping us to confirm a given diagnosis, understand a patient’s cancer susceptibility or risk, evaluate prognosis, as well as personalize treatment recommendations. … But in some cases, though, biomarkers can also help us to avoid therapies that are not likely to work. We also call these drug resistance biomarkers. These are those biomarkers that signify that a tumor is unlikely to respond to a given therapy.” TS 1:50

“Resistance to cancer therapies is one of the most common issues that arises during cancer treatment. Because the populations of cancer cells within a tumor can be very diverse, when a given drug kills the cells that are sensitive to that therapy, it can also eventually leave behind resistant tumor cells, which can grow and multiply over time. So this can ultimately lead to a point where the treatment that was initially effective is no longer able to control the disease.” TS 4:33

“While costs have come down, there can still be a cost associated with biomarker testing, and in some cases, this can be considered a barrier to care. What patients pay out of pocket can vary widely depending on their insurance coverage. So we have some data that was published from the American Cancer Society Cancer Action Network, and this was published a few years ago in 2023, which showed the average allowed unit cost to insurers per biomarker test ranged anywhere from about $79 for patients who were on Medicaid to about $224 for large-group, self-insured patients.” TS 10:03

“There’s research underway that’s looking not only at genomic changes—so DNA changes that impact drug resistance—but how other substances such as RNA and proteins within the cell can also contribute to drug resistance. And this kind of falls into not just genomics but multiomics field. I have no doubt whatsoever that the use of artificial intelligence and machine learning is likely going to play a large role in drug resistance research. And really, these tools can help researchers to analyze complex data sets, identify novel resistance biomarkers, predict resistance patterns, as well as help to develop treatments that may overcome some of those resistance mechanisms.” TS 17:00

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