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High CALLY index correlates with improved survival in hepatobiliary and pancreatic malignanciesHigh CALLY index linked to better survival in liver and pancreatic cancers

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Key Takeaway
Note that a high CALLY index is associated with improved survival in hepatobiliary and pancreatic cancers.

This meta-analysis evaluated the prognostic value of the C-reactive protein-albumin-lymphocyte (CALLY) index in 3833 adults with hepatobiliary and pancreatic malignancies. The analysis synthesized data from 17 cohorts for overall survival (OS) and 8 cohorts for recurrence-free survival (RFS) and disease-free survival (DFS).

Key findings indicate that a high CALLY index is associated with favorable outcomes. Specifically, high CALLY was associated with better OS (HR 0.50; 95% CI 0.44-0.58) and better RFS/DFS (HR 0.60; 95% CI 0.49-0.73). Subgroup analyses for cancer-specific OS favored high CALLY in hepatocellular carcinoma (HR 0.58), cholangiocarcinoma/biliary tract cancer (HR 0.47), and pancreatic cancer (HR 0.46).

The authors note several limitations, including the reliance on predominantly retrospective evidence, heterogeneous clinical settings, and variable cutoffs for the CALLY index. There is also a possibility of small-study effects for OS. Due to these factors and the lack of standardized thresholds, the evidence is currently insufficient to support the use of the CALLY index for routine clinical decision-making.

How this fits prior evidence

This meta-analysis provides a broad overview of the CALLY index as a prognostic marker for hepatobiliary and pancreatic malignancies. It extends the existing landscape of biomarkers for hepatocellular carcinoma, such as exosomal miRNAs and RPN1, by offering a multi-component inflammatory and nutritional index. While it confirms that high CALLY is associated with better survival, the evidence remains observational and is currently insufficient for routine clinical use due to the heterogeneity noted in the study.

When doctors look for ways to predict how a patient will fare with liver or pancreatic cancer, they often look for markers in the blood. One specific calculation called the CALLY index combines three different factors: C-reactive protein, albumin, and lymphocyte count. This study looked at data from over 3,800 adults with these types of cancers to see if this score could tell us anything about their progress.

Researchers found that patients with a high CALLY score had better overall survival rates across 17 different groups. They also saw better results for staying cancer-free and disease-free in 8 of those groups. This trend was consistent across different types of cancer, including those of the liver, bile ducts, and pancreas.

While these results are promising, there are important reasons to stay cautious. Most of the data came from older records rather than new trials, and the settings varied a lot. Because there is no standard way to measure the CALLY score yet, doctors cannot use it as a routine tool in clinics just yet. It remains a helpful piece of the puzzle for understanding how these cancers behave.

What this means for you:
A high CALLY score is linked to better survival for patients with liver, bile duct, and pancreatic cancers.

Common questions

What is the CALLY index and how does it work?

The CALLY index is a calculation that combines three different markers: C-reactive protein, albumin, and lymphocyte count. In this study, a high CALLY score was associated with better overall survival and longer periods of being cancer-free for patients with liver, bile duct, and pancreatic cancers.

Who does this finding help?

This finding specifically relates to adults diagnosed with hepatobiliary and pancreatic malignancies. This includes specific conditions like hepatocellular carcinoma, cholangiocarcinoma, and pancreatic cancer. While the results are promising, the evidence is currently not enough for routine use in clinics.

Is the CALLY score a new treatment?

No, the CALLY index is not a treatment. It is a way to measure certain factors in the body to help understand a patient's outlook. Because the data comes from varied settings and lacks standardized thresholds, it cannot be used as a standard clinical tool yet.

Study Details

Study typeMeta analysis
Sample sizen = 3,833
EvidenceLevel 1
PublishedSep 2026
View Original Abstract ↓
BACKGROUND: The C-reactive protein-albumin-lymphocyte (CALLY) index integrates systemic inflammation, nutritional status, and immune competence, but evidence in hepatobiliary and pancreatic (HBP) malignancies remains uncertain. We evaluated its association with survival outcomes. METHODS: A systematic search of PubMed, Embase, Scopus, and Web of Science was performed from inception to 9 September 2026. Observational studies involving adults with hepatobiliary and pancreatic malignancies were eligible if they evaluated pretreatment CALLY and reported HRs for survival outcomes. Random-effects were used to pool HRs for overall survival (OS) and recurrence-free/disease-free survival (RFS/DFS). Risk of bias was assessed using the Newcastle-Ottawa Scale, and certainty of evidence was evaluated using GRADE. RESULTS: Sixteen studies (17 cohorts; 3,833 participants) were included. High CALLY was associated with better OS across 17 cohorts (HR 0.50, 95% CI 0.44-0.58; I²=35.3%) and better RFS/DFS across eight cohorts (HR 0.60, 95% CI 0.49-0.73; I²=55.0%). Cancer-specific OS estimates favored high CALLY in hepatocellular carcinoma (HR 0.58), cholangiocarcinoma (CCA)/biliary tract cancer (HR 0.47), and pancreatic cancer (HR 0.46). Exploratory anatomical stratification of CCA reduced heterogeneity from 56.5% overall to 11.0% in intrahepatic CCA and 0% in mixed CCA/biliary cohorts. Leave-one-out analyses identified no influential cohort. Funnel-plot asymmetry suggested small-study effects for OS. Evidence certainty was moderate for both outcomes. CONCLUSION: High pretreatment CALLY was associated with favorable survival across HBP malignancies. Predominantly retrospective evidence, heterogeneous clinical settings, variable cutoffs, and possible small-study effects preclude routine clinical use. Prospective multicenter validation using standardized thresholds is required.
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