Health
Hidden factor in cancer treatment timing may affect survival, researchers say
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The time of day patients receive cancer treatments could have an impact on the outcome, a new study suggests.
New research published in Cancer, the official journal of the American Cancer Society, found that patients who received standard immunochemotherapy for extensive-stage small cell lung cancer (ES-SCLC) earlier in the day saw “significantly greater benefit” compared to those who got the same treatment later in the afternoon.
In the study, researchers from the Affiliated Cancer Hospital of Xiangya School of Medicine at Central South University, China, analyzed data from nearly 400 patients who were treated between May 2019 and October 2023.
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All patients had ES-SCLC and received first-line immunotherapy (atezolizumab or durvalumab) along with chemotherapy, according to a press release.
“Our study found that patients who received immunochemotherapy before 3:00 PM had substantially longer progression-free survival and overall survival,” lead study author Dr. Yongchang Zhang, medical oncologist and chief director at the Hunan Cancer Hospital in Changsha, China, told Fox News Digital.
The time of day patients receive cancer treatments could have an impact on the outcome, a new study suggests. (iStock)
“After adjusting for multiple confounding factors, earlier administration was associated with a 52% lower risk of cancer progression and a 63% lower risk of death.”
“It was quite surprising that simply changing the infusion time could lead to such substantial survival benefits for patients,” he added.
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The findings align with the idea of chronotherapy, which suggests that the body’s natural daily rhythms affect how the immune system works and how drugs act in the body.
This means cancer treatments may be more effective at certain times of day, likely because immune activity and drug processing change over the 24-hour cycle, the study suggests.
“This study should not prompt patients to delay treatment or panic about appointment times.”
Based on the findings, Zhang recommends scheduling immunotherapy infusions in the early part of the day.
“Research across multiple cancer types has shown that patients receiving immunotherapy earlier in the day experience longer survival,” he noted. “Our findings in non-small cell lung cancer, supported by both multicenter retrospective studies and prospective clinical trials, confirm this pattern.”
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Gilberto Lopes, M.D., chief of medical oncology at the Sylvester Comprehensive Cancer Center at the University of Miami Miller School of Medicine, noted that previous, similar studies in non-small cell lung cancer have shown better outcomes when immunotherapy is administered earlier in the day, reinforcing the idea that the immune system follows circadian rhythms that influence treatment response.
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“In that sense, the results are biologically plausible and consistent with a growing body of evidence across cancers,” Lopes, who was not involved in the study, told Fox News Digital. “What is striking is that this signal now appears in small cell lung cancer, a disease where outcomes have been notoriously difficult to improve.”
All patients had ES-SCLC and received first-line immunotherapy (atezolizumab or durvalumab) along with chemotherapy. (iStock)
The study did have some limitations, as detailed in the published study. Most notably, the study was retrospective and observational, meaning it could not prove a cause-and-effect relationship between timing of treatments and outcomes.
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With this type of study, Lopes said, “investigators start with an idea and go back and review patient records.” In this case, other factors can have an impact on the outcome, according to the oncologist.
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“For instance, did patients who come early in the day have a better quality of life, performance status and socioeconomic status and that is what made the difference?” he asked. “Or something else we don’t know? These results need to be confirmed prospectively to eliminate known and unknown sources of bias.”
“The next step is prospective testing, but until then, this research invites us to rethink something medicine usually ignores: timing itself,” an oncologist said. (iStock)
Zhang also pointed out that this was a single-center study including only Chinese patients. “To obtain more definitive evidence, prospective clinical trials conducted across multiple countries and diverse populations are needed,” he told Fox News Digital.
Looking ahead, the researchers plan to conduct randomized trials to confirm these preliminary findings and pinpoint optimal treatment windows based on individual patients’ chronotypes (internal body clocks).
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“This study should not prompt patients to delay treatment or panic about appointment times,” Lopes cautioned. “But it raises an important, low-cost question for oncology systems: If scheduling flexibility exists, should earlier infusion times be preferred?”
“The next step is prospective testing, but until then, this research invites us to rethink something medicine usually ignores: timing itself.”
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The health benefits of morning coffee may go beyond a wake-up call, according to a massive new study linking the beverage to a significantly lower risk of severe liver disease, liver cancer and liver-related death.
Published in the journal Clinical Gastroenterology and Hepatology, the research used data from 354,957 participants enrolled in the UK Biobank.
Researchers tracked individuals who had no history of cirrhosis or liver cancer at the start of the study for an average of 13 years, according to a press release.
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Participants who drank one to two cups of coffee daily showed a 20% lower risk of developing cirrhosis and a 31% lower risk of liver-related mortality compared to non-coffee drinkers.
The protective effects became even more noticeable at higher levels of consumption.
Data revealed that heavy coffee drinkers had significantly lower levels of liver fat and liver iron. (iStock)
Individuals who drank five or more cups of coffee per day experienced a 32% reduction in cirrhosis risk, a 42% lower risk of liver-related death and a 47% lower risk of developing hepatocellular carcinoma, the most common form of primary liver cancer.
While previous studies have hinted at coffee’s positive relationship with liver health, this study provides biological evidence to support the statistical trends, the researchers said.
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To better understand why coffee may protect the liver, the researchers conducted additional analyses using imaging data from a subgroup of nearly 29,000 participants and blood samples from approximately 50,000 individuals.
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The data showed that heavy coffee drinkers had significantly lower levels of liver fat and liver iron, as well as lower odds of developing fibroinflammation, which is the scarring and inflammation that often precedes permanent liver damage.
Participants who drank one to two cups of coffee daily showed a 20% lower risk of developing cirrhosis. (iStock)
The blood analysis linked coffee consumption with lower levels of some proteins known to trigger inflammation and tissue scarring, along with higher levels of proteins essential for healthy liver function.
Notably, the study found that the liver-protective benefits were similar for both caffeinated and decaffeinated coffee, suggesting that these benefits are driven by naturally occurring compounds not related to caffeine.
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While the benefits persisted regardless of whether the coffee was consumed black or with sweeteners, the researchers observed that adding sugar or artificial sweeteners slightly weakened the beneficial effects, particularly concerning markers of liver inflammation.
Researchers observed that adding sugar or artificial sweeteners slightly weakened the positive effects. (iStock)
While these findings suggest that coffee consumption is an accessible dietary habit for supporting liver health, the authors noted that it should serve as a complement rather than a replacement for standard preventative health practices.
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Because the research relied on self-reported dietary questionnaires from the UK Biobank, the findings could be susceptible to changes in participants’ coffee-drinking habits over the 13-year follow-up period.
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Additionally, as an observational study, it can only establish a strong correlation and cannot prove cause and effect, as other factors may influence the outcomes.
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