Used in biomedical research to quantify Human Epididymis Protein 4 (HE4) levels in serum, plasma, or other biological fluids. Widely applied in studies related to ovarian cancer for evaluating disease progression and monitoring response to treatment. Helps differentiate ovarian malignancies from benign gynecological conditions when used alongside other markers like CA-125. Also utilized in research on endometrial cancer and certain lung diseases to explore HE4 as a potential biomarker. The kit supports high-throughput screening in clinical laboratories and aids in the development of diagnostic assays. Its sensitive detection system enables accurate measurement of low-abundance HE4, making it valuable in early disease detection research.