At CTAD 2022 Diadem Highlights How Its AlzoSure® Predict Prognostic Blood Test for Alzheimer’s Disease Will Help Patients and Facilitate Development of New Therapies

—Data Presented at CTAD Conference Shows that AlzoSure® Predict Can Accurately Identify Stage of Cognitive Decline and Predict Whether or Not Individuals Will Progress to Alzheimer’s Disease Up to Six Years Before Diagnosis, Supporting Early Treatment with the Potential to Slow Disease Progression—
—As a Simple and Economical Blood Test, AlzoSure® Predict Will Be Widely Accessible to Physicians and Individuals/Patients and Suitable for Use by Drug Developers for Improved Clinical Trials—
—Growing Body of Evidence Confirming the Prognostic Accuracy of AlzoSure® Predict Sets the Stage for U.S. Commercialization Starting in Early 2023—

Milan, Italy and San Francisco, California, December 5, 2022 – Diadem SpA, a company developing the first blood-based test for the early prediction of progression to Alzheimer’s disease (AD), presented clinical data at the 15th Clinical Trials on Alzheimer’s Disease (CTAD) conference highlighting the accuracy and clinical utility of its AlzoSure® Predict prognostic blood test for Alzheimer’s Disease (AD), setting the stage for commercialization in the U.S. beginning in 2023.

In the presentation by Diadem Chief Medical Officer Dr. Sam Agus on December 2nd, Diadem discussed how AlzoSure® Predict can aid pharmaceutical and biotechnology companies for screening, enrichment and stratification of patient populations to facilitate Alzheimer’s disease clinical trials. Use of the test enables drug developers to identify individuals who will experience a decline to Alzheimer’s dementia up to six years in advance of diagnosis with high confidence, regardless of their cognitive, amyloid, or tau measurement status at the time of testing. This type of patient stratification can improve clinical trial recruitment and the odds of success, as it ensures that patients participating in the trials have a very high probability of developing full-blown AD.

Additionally, Dr. Agus discussed the utility of the test as a screening tool to enable physicians and patients to identify those at high risk of developing AD very early in the disease process, when therapies may be most effective. The likely approval of new drugs such as lecanemab from Eisai and Biogen, which shows promising signs of slowing cognitive decline in early AD, highlights the need for accurate and economical screening tools to select patients most likely to benefit from early treatment.

“This is an exciting time in the battle against Alzheimer’s disease,” said Paul Kinnon, CEO of Diadem. “Advances in AD diagnosis and therapies are finally providing hope that we can begin to slow or stop the progression of this terrible disease that impacts so many individuals and families. We see AlzoSure® Predict playing a key role in this progress, with its wide potential accessibility and its ability to enhance AD clinical trials and to identify individuals at high risk for progression to AD. As we expected, global market research we are in the process of conducting is showing that both individuals and physicians indicate strong interest in early access to better diagnostic tools for Alzheimer’s.”

Mr. Kinnon continued, “Our studies show that AlzoSure® Predict is able to predict cognitive decline to AD dementia with an AUC greater than 90%, regardless of the cognitive, amyloid, or tau status of the patient at the time of the test. AlzoSure also showed superiority compared to Pib-PET amyloid imaging in predicting decline to AD dementia in patients before, or with, early signs of cognitive deficits. We now are in the final stages of further validating these findings using longitudinal data from the U.S.-based Alzheimer’s Disease Research Centers (ADRC) and Alzheimer’s Disease Neuroimaging Initiative (ADNI) cohorts, and look forward to releasing results in the coming months. We also are preparing for the commercial launch of AlzoSure® Predict in the U.S. in the new year, in collaboration with a major diagnostics partner.”

AlzoSure® Predict is a non-invasive biomarker blood test that can identify with high accuracy whether individuals over the age of 50 with signs of cognitive impairment will or will not progress to Alzheimer’s disease up to six years before diagnosis. AlzoSure® Predict uses a proprietary antibody (U-p53AZ) to measure blood levels of a conformational variant of the p53 protein that has been implicated in the pathogenesis of AD. Previous studies suggest that this p53 variant has utility as a diagnostic and as a predictive biomarker to identify individuals likely to progress to AD up to six years before symptoms appear.

The utility of AlzoSure® Predict is supported by clinical data from a large longitudinal study that was the basis for AlzoSure® Predict’s Breakthrough Device designation from the U.S. Food & Drug Administration and its CE-IVD marking in the EU. AlzoSure® Predict requires only 1mL of blood and 4 to 5 days for analysis to detect AD at the asymptomatic and prodromal (early symptomatic) stage, with an accuracy greater than 95% up to at least 6 years in advance of the clinical onset of symptoms. Previous research also demonstrated that AlzoSure® Predict can discriminate between the different kinds of dementia with high accuracy.



About Diadem

Diadem was founded as a spin-out of the University of Brescia (Italy). The company is developing the first blood-based prognostic test for the early detection of dementia, with a focus on Alzheimer’s disease. The lack of accurate, accessible and affordable diagnostic tools is a major contributor to the absence of effective treatments for this devastating condition. As a result, patients are not diagnosed until late in the illness, when effective treatment is no longer possible. Diadem’s rapid, accurate and cost-effective blood-based prognostic test makes it possible for the first time to identify patients early in the disease process, when effective interventions and better outcomes are far more feasible. The utility of the approach has been demonstrated in longitudinal clinical studies that were the basis for awarding CE-IVD marking in the E.U. and a Breakthrough Device designation in the U.S. Additional retrospective and prospective clinical trials are ongoing to further validate clinical claims and support widespread adoption and use. Diadem is preparing for commercialisation of AlzoSure® Predict in collaboration with global strategic partners. The company is also developing AlzoSure® Confirm, a blood-based diagnostic test for AD that has shown promising results in early studies. For more information, visit