CUA2025 Highlight | Professor Yang Xuecheng's Team from Qingdao University Affiliated Hospital: Near-Infrared Targeted Fluorescent Contrast Agent DGPR1008 Rewrites Standards for Precise Surgical Margins in Prostate Cancer Surgery

1


At the recently concluded "Annual Grand Event" in the field of urology—the 32nd Annual Meeting of the Urological Association of the Chinese Medical Association (CUA2025)—Professor Yang Xuecheng, Director of the Department of Urology at Qingdao University Affiliated Hospital, delivered a special presentation on the near-infrared targeted fluorescent contrast agent independently developed by SIGNDO Biotechnology. The new achievement he showcased, Injection DGPR1008, with its core advantages of "lighting up tumors for precise surgery," provides a breakthrough solution for the treatment of prostate cancer, sparking enthusiastic discussions among all participating experts and scholars.


2

Clinical Pain Points Urgently Need Breakthroughs, and Innovative Technologies Emerge as the Times Require

As a "health killer" in the male genitourinary system, the diagnosis and treatment of prostate cancer have long faced critical challenges. According to the latest data from the National Cancer Center of China, the incidence rate of prostate cancer in China has increased at an average annual rate of 7.1%, and by 2022, the incidence rate had risen to 18.61 per 100,000 people. More critically, in traditional surgery, blurred tumor boundaries and difficulty in identifying small lesions lead to a positive surgical margin rate as high as 25%-30%—a core reason for the persistently high recurrence rate (40%-50%) among patients.

"How to 'see clearly' tumors during surgery is the key to improving surgical precision," emphasized Director Yang Xuecheng in his report. With over 20 years of clinical experience in urology, he has specialized in the minimally invasive treatment of genitourinary system tumors and has led the completion of more than 2,000 laparoscopic and robot-assisted radical prostatectomies. It was based on his profound insight into clinical pain points that he initiated industry-academia-research collaboration with SIGNDO Biotechnology to jointly promote the clinical translation of the DGPR1008 contrast agent.


3

Targeted Imaging Breaks New Ground and Empowers Precise Clinical Surgery

In his report, Director Yang Xuecheng intuitively demonstrated the "strong capabilities" of the DGPR1008 contrast agent through clinical cases: after intravenous injection of the contrast agent before surgery, the tumor area was clearly displayed as a "fluorescent highlight area" during surgery via the near-infrared imaging system, and the tumor-to-background ratio (TBR) far exceeded that of similar foreign products. Moreover, DGPR1008 accurately identified small metastatic lymph nodes, providing "real-time navigation" for surgeons to completely resect lesions.


4

The advantages of this innovative product can be summarized in four points:

Real-time cellular-level imaging: Distinguishes malignant tumors from normal tissues in real time during surgery

Ultra-clear boundary visualization: Precisely shows the tumor invasion range to ensure complete resection

Key protection function: Maximizes the preservation of sexual function and urinary control nerves

Small lesion clearance: Identifies small lesions that are difficult to detect with traditional imaging techniques

Empowering a Promising Clinical Future and Driving the Upgrade of Urological Diagnosis and Treatment

This special presentation at the CUA Annual Meeting not only represents authoritative recognition of the clinical value of the DGPR1008 contrast agent but also marks that China’s domestic near-infrared targeted imaging technology has officially entered the international advanced ranks. Director Yang Xuecheng stated: "In the future, we will continue to collaborate with Xindou Biotechnology to expand the sample size of clinical trials, promote the product’s early market approval, and enable more patients in primary hospitals to benefit from precision medicine."

With the further research, development, and promotion of the DGPR1008 contrast agent, it is expected that urological oncology surgery in China will achieve a leap from "experience-based" to "precision-based," injecting strong momentum into improving the national level of urological health.

BACK