Phase III KX-826 Tincture 1.0% For AGA Reached Primary Endpoint

The Pivotal Clinical Trial is a multi-center, randomized, double-blind, vehicle-controlled phase II/III study with adaptive designs to evaluate the efficacy and safety of KX-826 tincture 1.0% and 0.5% for the topical treatment of male adults with AGA in China. The Pivotal Clinical Trial adopts a phase II/III operational seamless design, with Professor Jianzhong Zhang (张建中) and Professor Cheng Zhou (周城) from Peking University People’s Hospital serving as the lead principal investigators. The Phase III Stage involved 26 clinical research centers in China and a 24-week treatment period at the prescribed dosages, followed by a 14-day safety observation period. Analysis results of the 666 patients enrolled in the Phase III Stage showed that:

• In terms of efficacy: compared to the placebo group, both 1.0% BID (i.e. twice a day) group and 0.5% BID group demonstrated statistically significant therapeutic efficacy and clinical significance. The target area non-vellus hair counts (“TAHC”) of the 1.0% BID group showed an increase of 15.33 hairs/cm² from baseline, the TAHC of the 0.5% BID group showed an increase of 14.46 hairs/cm² from baseline, and the TAHC of the placebo group showed an increase of 4.68 hairs/cm² from baseline. The TAHC of the 1.0% BID group showed an increase of 10.65 hairs/cm² from the placebo group, with statistically significant results (P<0.0001). The TAHC of the 0.5% BID group showed an increase of 9.78 hairs/cm² from the placebo group, with statistically significant results (P<0.0001).

• In terms of safety: both 1.0% BID group and 0.5% BID group exhibited excellent safety and tolerability in the clinical trial, and no drug-related serious adverse events were observed. There were no clinically significant differences in the incidence of adverse events among 1.0% BID group, 0.5% BID group, and the placebo group.

KX-826 is one of the Company’s innovative topical drugs with the most advanced progress. Since its development, it has completed multiple clinical trials for the treatment of male and female AGA in China and the United States, which have demonstrated excellent efficacy and safety. As a topical drug, KX-826 directly blocks the androgen mediated signaling by competing with androgen to bind to androgen receptors in the targeted tissues. Since the effect of KX-826 is limited to local skin with low transdermal absorption, and its rapidly metabolized products in vivo are low-activity compounds, thus effectively avoiding corresponding safety risks.

Based on results of previous clinical trials, the Company plans to communicate and initiate the NDA submission for KX-826 1.0% to the drug regulatory authorities in the PRC in the near term. The Company also notes that Cosmo Pharmaceuticals’s innovative topical drug targeting the same receptor announced positive phase III clinical trial results in early December 2025 and is seeking marketing approval from the U.S. and EU regulators. Both this drug and KX-826 are expected to serve as novel therapies for AGA, providing safer and more effective treatment options for numerous patients with AGA. The Company will strive to position KX-826 as the first-in-class drug approved by regulatory authorities for the treatment of AGA in China and globally. Upon approval, KX-826 is expected to fill the current clinical gap for new drugs in AGA treatment and break the nearly 40-year treatment paradigm that has relied solely on minoxidil and finasteride.

About Kintor Pharmaceutical Limited

Founded in 2009, Kintor Pharmaceutical Limited focuses on developing and commercializing potential "first-in-class" and "best-in-class" innovative drugs and functional cosmetics, aiming to be a leading enterprise in such areas, and establish a “troika” business model formed by R&D business of innovative topical drugs, B2B business of functional cosmetic raw materials and B2C business of functional cosmetic products. After several years' development, the Company has developed diverse product pipeline built on dermatology related diseases. The products cover diseases with high incidence rate globally and extend to functional cosmetics, which can meet the needs of clinical dermatology and cosmetics consumers worldwide. Kintor Pharma's layout includes innovative small molecule and biologic drugs, consisting of five productsunder clinical development and several preclinical research programs. Kintor Pharma has been granted more than 100 patents worldwide. On 22 May 2020, Kintor Pharma was officially listed on the Hong Kong Stock Exchange with the stock code 9939.HK. For more information, please visit www.kintor.com.cn.