The artificial sweetener sucralose may impair the efficacy of cancer immunotherapy, according to a recent study published in Science. Although further research is needed before these findings can be translated into actionable information for patients, the investigation highlights that “the science of nutrition in cancer is actually quite poor,” says senior author Diwakar Davar, MD, associate professor and clinical director of the melanoma and skin cancer program at the University of Pittsburgh School of Medicine Hillman Cancer Center in Pennsylvania. Dr. Daver shared why he and his colleagues chose to explore the potential effects of sucralose on cancer treatment, and what research is next, with Robert A. Figlin, MD, the interim director of Cedars-Sinai Cancer in Los Angeles and Steven Spielberg Family Chair. “What I think we are hoping to try to do is actually just kickstart a movement to get people to focus on nutrition,” Dr. Daver explained. “We spend $1 billion to try to get a hazard ratio of 0.8, and here it appears that if you eat just a little less of this, you can maybe double your likelihoods of success.”

Dr. Davar reported various financial relationships.

Dr. Figlin reported various financial relationships.

New survival data from the FLAURA2 and MARIPOSA trials represent “a massive advance for our patients” in terms of frontline treatment for EGFR-mutated non-small cell lung cancer says Sandip P. Patel, MD, professor of medicine at the University of California San Diego. However, the findings have led to new questions about sequencing. “Just like in chess, when you make a move, you’re restricted in the moves that you can make afterward,” he explains to Robert A. Figlin, MD, the interim director of Cedars-Sinai Cancer in Los Angeles and Steven Spielberg Family Chair. Discussions have become “much more nuanced,” and “thinking about the patient holistically becomes even more important in the setting of all these excellent treatment options for our patients,” Dr. Patel shares.

Dr. Patel reported scientific advisory income from Amgen, AstraZeneca, BeiGene, Bristol Myers Squibb, Certis, Eli Lilly, Jazz, Genentech, Illumina, Merck, Pfizer, Natera, and Tempus.

Dr. Figlin reported various financial relationships.

The development of oral selective estrogen receptor degraders (SERDs) represents substantial progress for patients with metastatic breast cancer who have ESR1 mutations. “I’m extremely excited because they’re the most effective form of endocrine therapy today,” says Wassim Mchayleh, MD, MBA, the clinical program director of the breast cancer program at AdventHealth Cancer Institute and associate professor of medicine at the University of Central Florida in Orlando. He spoke with Robert A. Figlin, MD, the interim director of Cedars-Sinai Cancer in Los Angeles and Steven Spielberg Family Chair in Hematology-Oncology about SERDs that are currently available and those in development. When it comes to weighing toxicity, “across the board, they are very well-tolerated endocrine therapies with a very low discontinuation rate,” Dr. Mchayleh noted. In addition to recent key clinical trial results, he also looked ahead to what data may help establish the drug class as a replacement for the current standard of care.

Dr. Mchayleh reported various financial relationships.

Dr. Figlin reported various financial relationships.

From a “game-changer” in triple-negative disease to broader paradigm shifts and practice changes, the 2025 American Society of Clinical Oncology (ASCO) Annual Meeting was pivotal for breast cancer care, says Sara M. Tolaney, MD, MPH, chief of the Division of Breast Medical Oncology at the Dana-Farber Cancer Institute in Boston, Massachusetts. Dr. Tolaney broke down some of the top data at ASCO 2025 with Robert A. Figlin, MD, the interim director of Cedars-Sinai Cancer in Los Angeles, California, and Steven Spielberg Family Chair in Hematology-Oncology. She singled out findings from the ASCENT-04 trial, the plenary session on SERENA-6, and the DESTINY-Breast09 trial. “I think it’s been a very exciting ASCO for breast cancer overall, with just so much exciting data,” Dr. Tolaney concluded.

Results from the phase 3 ATOMIC trial are practice changing for colorectal cancer care and raise broader questions about immunotherapy use in patients with mismatch repair deficiencies across tumor types. Frank A. Sinicrope, MD, a professor of oncology and medicine at the Mayo Clinic Comprehensive Cancer Center in Rochester, Minnesota, presented the findings at the 2025 American Society of Clinical Oncology Annual Meeting. He discussed the significance of the ATOMIC results and next steps with Robert A. Figlin, MD, the interim director of Cedars-Sinai Cancer in Los Angeles and Steven Spielberg Family Chair in Hematology-Oncology. “I think that microsatellite instability is a terrific predictive biomarker for immunotherapy, and all of these patients should get immunotherapy in some form or another,” Dr. Sinicrope noted.

“An increasingly unrealistic set of performance expectations” is putting a strain on oncologist faculty members, says Clifford Hudis, MD, CEO of the American Society of Clinical Oncology (ASCO). He discussed the mounting challenges for academic cancer physicians and how ASCO is working to address them with Robert A. Figlin, MD, the interim director of Cedars-Sinai Cancer in Los Angeles and Steven Spielberg Family Chair in Hematology-Oncology. Dr. Hudis explained that academic oncologists are expected to be clinicians, researchers, teachers, and administrators. “And in most cases, there just isn’t a pay line and salary support for all four of those jobs, nor are there enough hours in the week for somebody to do all four of those jobs in a superb way,” he said. When it comes to ASCO’s ability to enable proactive change, Dr. Hudis explains that “we don’t have an enforcement mechanism. All we can do is shine a very bright light on reality and then ask for collective action to identify best approaches.”

Dr. Hudis reported no relevant financial relationships.

Dr. Figlin reported various financial relationships.

“For the first 15 years of my career, we had nothing new” in bladder cancer care, said Jonathan E. Rosenberg, MD, chief of the genitourinary oncology service at Memorial Sloan Kettering Cancer Center in New York City. Now, “the pace of change has been dizzying,” he told Robert A. Figlin, MD, the interim director of Cedars-Sinai Cancer in Los Angeles and Steven Spielberg Family Chair in Hematology-Oncology. Speaking at the 2025 American Society of Clinical Oncology Annual Meeting, Dr. Rosenberg discussed key studies that have recently changed practice and what questions still remain. For certain laboratory testing and other concerns, “it’s a bit of the Wild West right now,” he noted.

Findings from the SERENA-6 trial, which examined switching therapies in patients with breast cancer ahead of disease progression, made headlines during the 2025 American Society of Clinical Oncology Annual Meeting. However, big questions remain. “I don’t know for sure if the approach is practice changing yet. I think the approach is practice confounding,” said Stephanie Graff, MD, director of breast oncology at Brown University Health Cancer Center in Providence, Rhode Island. Dr. Graff discussed the high-profile data with Robert A. Figlin, MD, the interim director of Cedars-Sinai Cancer in Los Angeles and Steven Spielberg Family Chair in Hematology-Oncology. The trial showed a progression-free survival benefit when patients switched from an aromatase inhibitor to camizestrant, based on circulating tumor DNA information. And yet, issues with the study’s design may make taking the results into clinic challenging. “We don’t have clear evidence on how changing based on molecular therapy changes overall survival,” said Dr. Graff. “I think we’re going to get there, but I don’t know that the point we are at with SERENA-6 has us there.”