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Female, 25-60 years, understands study procedures and consents to participate;\n2. Colposcopy-guided cervical biopsy within 3 months showing HSIL\u002FCIN2;\n3. Provides written informed consent.\n\nExclusion Criteria:\n\n1. Cytology showing ASC-H, HSIL, AGC, or AIS; or evidence of malignant cells on cytology\u002Fhistology, or suspicion of malignancy or invasive cancer;\n2. Colposcopy findings suggestive of invasive cancer or lesion extension to the vaginal wall;\n3. Severe pelvic, cervical, or other gynecological inflammatory conditions identified clinically;\n4. Undiagnosed vaginal bleeding;\n5. Active allergic disease, porphyria, or history of allergy to the study drug or structurally similar agents;\n6. Severe cardiovascular, neurological, psychiatric, endocrine, hepatic, or hematologic disorders; known immunodeficiency; long-term glucocorticoid or immunosuppressant use; active autoimmune disease; or other malignancies;\n7. Pregnant or breastfeeding women;\n8. History of hysterectomy, cervical cancer treatment, or cervical excision\u002Fablation within 6 months (e.g., conization, LEEP, laser);\n9. Use of interferon or antiviral therapy within 3 months;\n10. Any other condition deemed unsuitable for participation by the investigator.",true,"FEMALE","25 Years","65 Years",{"count":127,"type":128},560,"ESTIMATED","INTERVENTIONAL",[131],"NA","This study evaluates the efficacy and safety of ALA-PDT versus LEEP in treating cervical HSIL\u002FCIN2, aiming to demonstrate non-inferiority in clinical efficacy.",[134,135,136,137],"HSIL, High Grade Squamous Intraepithelial Lesion","CIN 2","HPV (Human Papillomavirus)-Associated","Photodynamic Therapy (PDT)",[139,140,141,142,143],"photodynamic therapy","High Grade Squamous Intraepithelial Lesion","human papillomavirus","loop electrosurgical excision procedure","efficacy","NOT_YET_RECRUITING","2025-12-14",{"date":147,"type":148},"2025-12-29","ACTUAL",{"date":150,"type":128},"2026-01",{"date":152,"type":128},"2027-12",{"name":5,"class":6},5]