The poster presentation (Abstract No. 686, Poster Session B: Urothelial Carcinoma) "Upstaging and risk mitigation with Blue Light Cystoscopy for non-muscle-invasive bladder cancer: Results from a prospective multicenter registry" by Alireza Ghoreifi (Duke University Medical Center).

The study looked at 2,854 NMIBC* patients from the US Blue Light Cystoscopy with Cysview Registry. A total of 201 (7%) patients had at least one malignant lesion detected exclusively by BLC while having a negative WLC. These lesions (335 in total) included carcinoma in-situ (CIS) (145; 43%), low-grade Ta in (53; 16%), high-grade Ta in (95; 28%), high-grade T1 (37; 11%), and high-grade T2 (5; 1%). As a result of BLC-enhanced detection, the rate of upgrading or upstaging to a more advanced tumor using BLC was 9.3%. The author concluded that resulting changes in grade/stage could impact patient management, such as the appropriate administration of intravesical therapy, duration of therapy, and when to perform radical cystectomy. The results are expected to form the basis for further studies on how Blue Light Cystoscopy can support precision diagnostics and improve patient management in NMIBC.

The abstract presentation included data from Photocure's US Blue Light Cystoscopy with Cysview Registry, a large multicenter bladder cancer patient registry of real-world data, established by Photocure in 2014 and projected to enroll 4,400 patients.

See the poster here: https://meetings.asco.org/abstracts-presentations/242897

*NMIBC: Non muscle-invasive bladder cancer

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About Bladder Cancer
Bladder cancer ranks as the 8^th most common cancer worldwide - the 5^th most common in men - with 1 949 000 prevalent cases (5-year prevalence rate)^1a, 614 000 new cases and more than 220 000 deaths in 2022.^1b
Approx. 75% of all bladder cancer cases occur in men.¹ It has a high recurrence rate with up to 61% in year one and up to 78% over five years.² Bladder cancer has the highest lifetime treatment costs per patient of all cancers.³
Bladder cancer is a costly, potentially progressive disease for which patients have to undergo multiple cystoscopies due to the high risk of recurrence. There is an urgent need to improve both the diagnosis and the management of bladder cancer for the benefit of patients and healthcare systems alike.
Bladder cancer is classified into two types, non-muscle invasive bladder cancer (NMIBC) and muscle-invasive bladder cancer (MIBC), depending on the depth of invasion in the bladder wall. NMIBC remains in the inner layer of cells lining the bladder. These cancers are the most common (75%) of all BC cases and include the subtypes Ta, carcinoma in situ (CIS) and T1 lesions. In MIBC the cancer has grown into deeper layers of the bladder wall. These cancers, including subtypes T2, T3 and T4, are more likely to spread and are harder to treat.⁴

¹ Globocan. a) 5-year prevalence / b) incidence/mortality by population.  Available at: https://gco.iarc.fr/today, accessed [February 2024].
² Babjuk M, et al. Eur Urol. 2019; 76(5): 639-657
³ Sievert KD et al. World J Urol 2009;27:295-300
⁴ Bladder Cancer. American Cancer Society. https://www.cancer.org/cancer/bladder-cancer.html

About Hexvix^®/Cysview^® (hexaminolevulinate HCl)
Hexvix/Cysview is a drug that preferentially accumulates in cancer cells in the bladder, making them glow bright pink during Blue Light Cystoscopy (BLC^®). BLC with Hexvix/Cysview, compared to standard white light cystoscopy alone, improves the detection of tumors and leads to more complete resection, fewer residual tumors, and better management decisions.
Cysview is the tradename in the U.S. and Canada, Hexvix is the tradename in all other markets. Photocure is commercializing Cysview/Hexvix directly in the U.S. and Europe and has strategic partnerships for the commercialization of Hexvix/Cysview in China, Chile, Australia, New Zealand and Israel. Please refer to https://photocure.com/partners/our-partners for further information on our commercial partners.

About Photocure ASA
Photocure: The Bladder Cancer Company delivers transformative solutions to improve the lives of bladder cancer patients. Our unique technology, making cancer cells glow bright pink, has led to better health outcomes for patients worldwide. Photocure is headquartered in Oslo, Norway and listed on the Oslo Stock Exchange (OSE: PHO). For more information, please visit us at www.photocure.com/news