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...
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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...
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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...
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Episode 397: Cancer Symptom Management Basics: Ototoxicity
The ONS Podcast
“Referring patients to audiology early on has shown dramatic reduction in hearing loss or complications because the audiologist can really see where were they at before they started chemotherapy, where were they at during, if they get an audiogram during their treatment. And then after treatment, it’s really important for them to see an audiologist because this is really a survivorship journey for them. And as nurses, the ‘so what’: We are the first line of defense,” ONS member Jennessa Rooker, PhD, RN, OCN®, director of nursing excellence at the Tampa General Hospital Cancer...
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Episode 396: Nursing Considerations From the ONS/ASCO Extravasation Guideline
The ONS Podcast
“We proposed a concept to the American Society of Clinical Oncology (ASCO), recognizing that extravasation management requires significant interdisciplinary collaboration and rapid action. There can occasionally be uncertainty or lack of clear guidance when an extravasation event occurs, and our objective was to look at this evidence with the expert panel to create a resource to support oncology teams overall. We hope that the guideline can help mitigate harm and improve patient outcomes,” Caroline Clark, MSN, APRN, AGCNS-BC, OCN®, EBP-C, director of guidelines and quality at ONS, told...
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Episode 395: Pharmacology 101: Monoclonal Antibodies
The ONS Podcast
“They [monoclonal antibodies] are able to cause tumor cell death by binding to and blocking to necessary growth factor signaling pathways for tumor cell survival. That’s going to be dependent on the target of the antibody, but I’ll give an example of epidermal growth factor, or EGFR. This is overexpressed in several different kinds of cancers where activation of this growth factor increases the amount of proliferation and migration of cancer cells. So, if we bind to it and block to it, then that would help halt these pathways and stop cancer cell growth,” Carissa Ganihong, PharmD,...
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Episode 394: Prostate Cancer Survivorship Considerations for Nurses
The ONS Podcast
“The thought of recurrence is also a psychosocial issue for our patients. They’re being monitored very closely for five years, so there’s always that thought in the back of their head, ‘What if the cancer comes back? What are the next steps? What am I going to do next?’ It’s really important that we have conversations with patients and their families about where they’re at, what we’re looking for, and reassure them that we’ll be with them during this journey and help them through whatever next steps happen,” ONS member Clara Beaver, DNP, RN, AOCNS®, ACNS-BC, manager...
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Episode 393: Antibody–Drug Conjugates in Metastatic Breast Cancer
The ONS Podcast
“I’ll go back to the backpack analogy. When your kids come home with a backpack, all of a sudden their homework is not on the desk where it’s supposed to be. It’s in the kitchen; it kind of spreads all over the place, but it’s still in the house. When we give antibody–drug conjugates (ADCs), the chemotherapy does go in, but then it can kind of permeate out of the cell membrane and something right next to it—another cancer cell that might not look exactly like the cancer cell that the chemotherapy was delivered into—is affected and the chemotherapy goes over to that cancer cell...
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Episode 392: ONS 50th Anniversary: Stories From the Other Side of Cancer
The ONS Podcast
“Working as an oncology infusion nurse, being oncology certified, attending chapter meetings, going to ONS Congress® has really taught me plenty. But being an oncology patient taught me way more. I know firsthand the fears ‘you have cancer’ brings. Then going through further testing, CT scans, MRIs, genetics, the whole preparation for surgery was something I never considered when I treated a breast cancer patient,” ONS member Catherine Parsons, RN, OCN®, told Valerie Burger, MA, MS, RN, OCN®, CPN, member of the ONS 50th anniversary planning committee, during a conversation about...
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Episode 391: Pharmacology 101: Antibody–Drug Conjugates
The ONS Podcast
“Antibody–drug conjugates (ADCs) have three basic parts: the antibody part, the cytotoxic chemo, and the linker that connects the two. First, the antibody part binds to the target on the surface of the cell. Antibodies can be designed to bind to proteins with a very high level of specificity. That’s what gives it the targeted portion. Then the whole thing gets taken up by the cell and broken down, which releases the chemotherapy part. Some sources will call this the ‘payload’ or the ‘warhead.’ That’s the part that’s attached to the ‘heat-seeking’ part, and that’s...
info_outline“All of these TKIs [tyrosine kinase inhibitors] inhibit BCR-ABL1 in some way, shape, or form. When BCR-ABL1 is mutated, it has uncontrolled tyrosine kinase activity, leading to rapid cell proliferation. When we then inhibit that BCR-ABL1 that’s been mutated, we disrupt this abnormal signaling pathway that drives CML [chronic myeloid leukemia] cell proliferation and survival, ultimately leading to decreased cancer cell growth, increased apoptosis or cell death, and potentially inducing a disease remission,” Samantha Maples, PharmD, BCOP, clinical pharmacy specialist supervisor for hematology and cellular therapy at Allegheny Health Network in Pittsburgh, PA, told Jaime Weimer, MSN, RN, AGCNS-BS, AOCNS®, manager of oncology nursing practice at ONS, during a conversation about the BCR-ABL1 inhibitor drug class.
Music Credit: “Fireflies and Stardust” by Kevin MacLeod
Licensed under Creative Commons by Attribution 3.0
Earn 0.5 contact hours of nursing continuing professional development (NCPD) by listening to the full recording and completing an evaluation at courses.ons.org by September 5, 2026. The planners and faculty for this episode have no relevant financial relationships with ineligible companies to disclose. ONS is accredited as a provider of nursing continuing professional development by the American Nurses Credentialing Center’s Commission on Accreditation.
Learning outcome: Learner will report an increase in knowledge related to the use of BCR-ABL1 inhibitors in the treatment of CML.
Episode Notes
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Highlights From This Episode
“The IRIS study led to the approval of the BCR-ABL1 and TKI, imatinib, for CML in 2001 and completely changed the landscape of CML treatment. Then came the second-generation BCR-ABL1 TKIs: dasatinib in 2006, quickly followed by nilotinib in 2007. Thereafter came our second-generation, bosutinib, and our first approved third-generation TKI, ponatinib, both in 2012, which was a huge milestone as ponatinib overcomes resistance to the T315 I mutation, which no previously approved TKIs worked against.” TS 2:16
“The newest approved TKI, asciminib, is an allosteric inhibitor that binds to a different pocket on the BCR-ABL kinase via allosteric binding to the ABL myristoyl pocket. It’s what’s called a STAMP inhibitor, where STAMP stands for ‘specifically targeting the ABL myristoyl pocket.’ And while all the TKIs target the BCR-ABL1 binding site, they can also inhibit different off-target kinases. And these differences in off-target inhibition are responsible for some of the different toxicities we see among the TKIs.” TS 4:51
“As a class, common toxicities include nausea; vomiting; diarrhea; cardiac toxicities, including cardiac arrhythmias and congestive heart failure; metabolic abnormalities such as hypercholesterolemia and hypertriglyceridemia; nephrotoxicity; hepatic toxicity; hemorrhaging and bleeding; as well as cytopenia. Individually, some of these agents are more likely to cause certain side effects compared to others, and there are unique toxicities associated with certain TKIs.” TS 8:10
“We’ve moved to using preemptive loperamide [in our clinic] for the first three days of starting treatment, because it’s really hard to get patients to continue to take a medication if they have such severe diarrhea that they end up in the hospital or they’re unable to leave their house. A lot of times, we will proactively give patients antiemetics and loperamide to help with the nausea, vomiting, and diarrhea. And then we can back off to an as-needed basis once they’ve been established on treatment. We can also use medications to help manage long-term complications that can require supportive care, such as statin therapy for high cholesterol, levothyroxine for hypothyroidism, anticoagulants for any venous thromboembolism, and antihypertensive medications for managing any new or worsening high blood pressure.” TS 12:44
“We are continually seeing these agents expand their indications to different lines of therapy, as well as more TKIs being approved for acute lymphoblastic leukemia. For example, asciminib just got approved in the frontline setting within the last year, whereas previously it was only approved in relapsed refractory setting. Last year, imatinib was the first BCR-ABL1 TKI to come out with a commercially supplied suspension option as well, which is huge in the pediatric space and [for] our adult patients who are unable to swallow tablets for other clinical reasons.” TS 21:22
“There is more information being published on the safe discontinuation of these medications with treatment-free remissions, and more information is coming out about who would be eligible and who can have the option to stop these treatments instead of having a lifelong chronic condition requiring continuous treatment. We're seeing more patients in clinical practice be able to stop BCR-ABL1 treatment, which has been a great development in CML.” TS 25:29