ENGLISH
CHENGDU, China, October 29, 2026 — Chengdu Gowell Biopharmaceutical Co., Ltd. ("Gowell") submitted an Investigational New Drug (IND) application to the U.S. Food and Drug Administration (FDA) for GW906 Injection, a small interfering RNA (siRNA) therapeutic candidate for the treatment of primary hypertension. The submission was transmitted through the FDA Electronic Submissions Gateway (ESG) on October 29, 2026, and the FDA has acknowledged receipt of the application.
The IND for the Phase 1 single ascending dose (SAD) study is expected to reach a study-may-proceed position in late November 2026.
△ FDA acknowledgment of the IND submission
Current regulatory status
Under 21 CFR 312.40(b), an IND goes into effect 30 days after FDA receives the IND, unless FDA notifies the sponsor that the investigations described in the IND are subject to a clinical hold. Based on that date, and absent a clinical hold, Gowell expects the IND to reach a study-may-proceed (SMP) position around the end of November 2026.
The acknowledgment (ACK) issued by the FDA reflects only receipt and administrative registration of the submission; it does not indicate a favorable review outcome or marketing authorization in any jurisdiction. GW906 has not been approved by any regulatory authority.
A large, unmet need in blood pressure control
Hypertension is the most prevalent and most modifiable risk factor for cardiovascular disease. Between 2017 and 2020, the prevalence of hypertension among U.S. adults — defined as blood pressure ≥130/80 mmHg or receiving antihypertensive treatment — reached 46.7%, while awareness, treatment and control rates remain well below target levels. Antihypertensive drug therapy requires daily oral dosing: up to 50% of patients fail to adhere within one year of starting treatment, and 8.5%–20% of patients remain uncontrolled despite three or more antihypertensive agents at maximum tolerated doses.
About GW906
GW906 (SAL0132) is a GalNAc-conjugated small interfering RNA (siRNA) therapeutic designed to precisely target hepatic angiotensinogen (AGT). By blocking the renin-angiotensin-aldosterone system (RAAS) at its origin, GW906 is engineered to provide long-acting, sustained blood pressure control, offering the potential to significantly enhance treatment compliance in patients with hypertension. In early 2025, exclusive development and commercialization rights for the Greater China region were out-licensed to Salubris Pharmaceuticals.
From China Data to Global Development — and From One Program to a Platform for Partnership
To evaluate whether a single dose could achieve sustained blood pressure control, GW906 was advanced into early-stage clinical development in China. Data presented in March 2026 at the American College of Cardiology Annual Scientific Session (ACC.26) demonstrated that all dose cohorts achieved a greater than 90% reduction in angiotensinogen (AGT) levels within three months, with the second-lowest dose cohort exhibiting sustained blood pressure-lowering effects extending through month 10 post-administration. This FDA IND submission establishes a cohesive narrative framework for GW906, integrating domestic early-stage clinical data with a global development roadmap.
Following the anticipated "Study May Proceed" (SMP) status in late November, the company may explore potential strategic partnerships, including out-licensing, co-development, and regional rights transactions based on these milestones. The foregoing does not constitute an offer, commitment, or guarantee regarding any transaction.
GW906 is not a standalone asset. It sits on the TECHGOWELL platform, which has built in-house siRNA capabilities across target identification, AI algorithms, chemical modification and delivery. GW908, an inhaled siRNA program for respiratory disease, is moving toward IND stage, and several further programs are at preclinical candidate stage in asthma, COPD and idiopathic pulmonary fibrosis. In September 2026, TECHGOWELL's lung-targeted siRNA enzymatic conjugation platform was accepted into the FDA's Emerging Technologies Program (ETP).
This strategic framework — combining a core clinical asset with platform-driven expansion — unlocks multifaceted partnership opportunities. The company welcomes discussions with prospective partners regarding overseas rights for GW906, while also exploring potential co-development, technology licensing, and platform-level collaborations leveraging TECHGOWELL's oligonucleotide capabilities.
The foregoing is intended solely to outline potential collaboration avenues and does not constitute an offer, commitment, or guarantee regarding any transaction.
中文国为 GOWELL 集团(成都国为)旗下创新药研发中心TECHGOWELL自主研发的小干扰核酸(siRNA)创新药 GW906 注射剂已于 2026 年 10 月 29 日通过美国食品药品监督管理局(FDA)电子提交网关(ESG)完成新药临床试验申请递交,适应症为原发性高血压。
△ FDA 受理回执(IND 申报)
监管状态
根据美国法规(21 CFR Part 312),IND 自取得 FDA 的递交回执(ACK)之日起 30 天内,若未收到临床暂停(clinical hold)通知,该申请即可以开展临床研究。本次递交已于 2026 年 10 月 29 日取得递交回执(ACK)。如未收到临床暂停通知,该 IND 预计于 11 月底前后取得 Study May Proceed Letter。
备注:“ACK”仅代表 FDA 完成资料接收与登记,不代表审评通过或上市许可。
原发性高血压
高血压是全球最常见、也是最重要的可干预心血管病危险因素:2017—2020 年美国成人高血压患病率达 46.7%,而知晓率、治疗率和控制率均远低于目标。现有口服降压药需长期每日服用,开始治疗一年后高达 50% 的患者依从性不佳,另有 8.5%—20% 的患者即便使用 3 种及以上降压药(最大耐受剂量)仍难以实现血压控制。
关于 GW906
GW906(SAL0132)是一款采用 GalNAc 偶联技术、精准靶向肝脏血管紧张素原(AGT)的 siRNA 药物。通过从源头阻断 RAAS 系统,GW906 旨在通过长效作用机制,潜在地改善高血压患者的治疗依从性;其作用机制旨在实现长效且平稳的血压控制。2025 年初已将大中华区权益独家许可给信立泰药业。
从中国数据到全球开发,从单一项目到平台化合作空间
围绕上述“单次给药能否实现长期控压”的研究假设,GW906 已在国内推进早期临床研究。2026 年 3 月 ACC.26 披露研究结果显示:各剂量组 3 个月内 AGT 下降幅度达 90% 以上,次最低剂量组观察到降压效应延续至给药后第 10 个月。
本次 FDA IND 递交,让 GW906 形成“国内早期研究数据 + 全球开发路径”的完整叙事基础。
待 11 月底预期达到研究可开展(SMP)状态后,公司可能据此推进海外授权、联合开发及区域权益等潜在合作机会的探讨。上述内容不构成对任何交易的要约、承诺或保证。
同时,GW906 并非孤立资产。其依托的 TECHGOWELL 平台已搭建起涵盖靶点挖掘、AI 算法、化学修饰、递送技术的小核酸全链条自研能力。除 AGT 靶点外,呼吸疾病方向的吸入 siRNA 管线 GW908 正推进至 IND 阶段,另有多个管线处于 PCC 阶段,覆盖哮喘、慢阻肺、特发性肺纤维化等疾病。2026 年 9 月,TECHGOWELL 肺部靶向 siRNA 酶催化偶联平台被 FDA 新兴技术项目(ETP)接受。
这套“核心候选资产 + 技术平台拓展”的布局,带来多元化合作可能性:公司欢迎潜在合作方就 GW906 海外权益进行探讨,亦可基于 TECHGOWELL 小核酸能力探讨联合开发、技术授权及平台层面合作的可能性。
上述内容仅为合作可能性说明,不构成对任何交易的要约、承诺或保证。
关于 TECHGOWELL
TECHGOWELL 成立于2020年,是国为 GOWELL 集团(成都国为)旗下创新药研发中心,聚焦小核酸药物研发,致力于开发改善呼吸及心血管疾病患者生命质量的创新药物。公司已在小核酸递送领域形成系列产品管线,主要研究方向涵盖心血管、慢性阻塞性肺疾病(COPD)、哮喘(Asthma)与特发性肺纤维化(IPF)等领域。
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*本文稿仅供参考,不构成任何投资建议或对未来事件的承诺。公司的研发进展存在不确定性,实际结果可能因多种因素而与预期存在重大差异。
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