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Despite significant improvements in data sharing for cancer clinical trials over the last 10 years, changes are still needed to ensure patient-centred care, medical advancements, and trust in the pharmaceutical industry, according to latest research from Flinders University.

In an article in the , the researchers are calling for mandated data-sharing policies for all industry-sponsored oncology trials to support future research, help prevent the duplication of studies, and ensure robust reviews and analyses can take place.

鈥淧articipants often enrol in clinical trials knowing that while the trial may not personally benefit them, they are contributing to advancements in care for someone else in the future,鈥� said lead author Natansh Modi, an NHMRC PhD candidate at the Clinical Cancer Epidemiology Lab at Flinders University.

鈥淭his can鈥檛 happen if the data that is needed to make these improvements isn鈥檛 made available to other researchers.鈥�

Clinical study reports (CSRs) and individual participant data (IPD) are seen by several organisations, including the World Health Organization, as critical to building trust in the drug approval process and contributing to future drug trials.

However, despite detailed information on methods, results and each participant鈥檚 responses to treatments, this data is not generally accessible to researchers undertaking systematic reviews and meta-analyses.

鈥淭hese types of studies ensure researchers can take all the information that is out there about a particular drug and treatment, review the evidence, and create guidelines and best practices for how doctors can best treat their patients,鈥� Modi said.

鈥淏ut due to the unavailability of the data, it isn鈥檛 the norm to include CSRs and IPD; instead, researchers must rely on summaries in published papers which are much less detailed, introducing a substantial risk of bias and compromising the review鈥檚 ability to improve patient care.鈥�

Previous research by Modi and his Flinders University colleague Associate Professor Ash Hopkins found that IPD was not available for more than half of the clinical trials that led to the United States Food and Drug Administration approval of certain anticancer medicines.

Despite an increase in the availability of CSRs and IPDS over the last 10 years or so, more needs to be done to further promote transparency, the authors suggest.

鈥淧harmaceutical companies, funding bodies and journal publishers need to implement standardised data-sharing policies that allow the data to be shared from the moment a drug is approved for use,鈥� Modi said.

鈥淔urthermore, independent review panels should be established to help eliminate conflicts of interest and bias when data-sharing requests are made.

鈥淎nd while patient data protection is paramount, it has been found that 90% of trial participants support data sharing. As long as consent is there from the start, IPD should be shared to ensure trial data can be scrutinised.

鈥淭hese changes require support from the many stakeholders involved in a drug鈥檚 development, but the ultimate goal is to create a data-sharing ecosystem that prioritises scientific advancement and patient-centred care.鈥�

Image credit: iStock.com/Tashi-Delek