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Gallbladder cancer has been called scantily understood in 2004 and understudied in 2025 by its own researchers. Counting the money spent on it against the deaths it causes, country by country, would make the gap visible and give funders a target.
The disease is common in Chile, Bolivia, northern India and parts of East Asia and rare in the countries that fund most cancer research; it is treated mostly by surgeons and pooled with cholangiocarcinoma in trials, so it has neither an advocacy base nor a trial portfolio of its own. Successive reviews (Wistuba and Gazdar 2004; Roa 2022; Zhu 2025) describe it as understudied and list the same unmet needs: screening biomarkers, standardised pathology, separate trials. The EULAT Eradicate GBC consortium (EU Horizon 2020) shows what a dedicated call can build. An audit of research spend against disability-adjusted life years, published and repeated, is the cheapest lever, followed by a targeted call from a funder with reach into both high-incidence and high-capacity countries.
Evidence that the immune environment of gallbladder cancer differs by population even when the mutations do not; a reason to report gallbladder cancer and its regions separately in immunotherapy trials rather than as one biliary subgroup.
The best single starting point for a clinician or researcher new to the disease, written by the groups running the Chilean and Indian cohorts; its list of unmet needs is the skeleton of the ideas section on this page.
Two decades on, the disease is still described as understudied in the 2025 immunogenomics literature; the reasons (rarity in the countries that fund research, incidental diagnosis, pooling with bile duct cancer in trials) have not changed.
Shares Population-Specific Immunogenomic Alterations in Gallbladder Cancer and Prognostic Significance, Gallbladder cancer roadmap: from a chance finding at gallstone surgery to a disease with its own trials, Rare and paediatric cancers without markets, Gallbladder cancer and the tag gallbladder-evidence.
Shares Gallbladder cancer, Gallbladder cancer roadmap: from a chance finding at gallstone surgery to a disease with its own trials, Gallbladder cancer and the tag gallbladder-evidence.
Shares Gallbladder cancer roadmap: from a chance finding at gallstone surgery to a disease with its own trials, National Cancer Institute (NIH), Gallbladder cancer and the tag gallbladder-evidence.
Shares Gallbladder cancer roadmap: from a chance finding at gallstone surgery to a disease with its own trials, Gallbladder cancer and the tag gallbladder-evidence.
Shares Gallbladder cancer roadmap: from a chance finding at gallstone surgery to a disease with its own trials, National Cancer Institute (NIH), Gallbladder cancer and the tag gallbladder-evidence.
Shares Gallbladder cancer roadmap: from a chance finding at gallstone surgery to a disease with its own trials, Gallbladder cancer and the tag gallbladder-evidence.
Shares Gallbladder cancer roadmap: from a chance finding at gallstone surgery to a disease with its own trials, National Cancer Institute (NIH), Gallbladder cancer and the tag gallbladder-evidence.
Shares Gallbladder cancer roadmap: from a chance finding at gallstone surgery to a disease with its own trials, Gallbladder cancer and the tag gallbladder-evidence.