Hengrui Pharma’s HRS-4642 Wins Breakthrough Therapy Designation for KRAS G12D Pancreatic Cancer

Jiangsu Hengrui Pharmaceuticals Co., Ltd. (SHA: 600276, HKG: 1276) announced that HRS-4642, its KRAS G12D-targeting liposomal inhibitor, has been granted Breakthrough Therapy Designation (BTD) by China’s Center for Drug Evaluation (CDE) for first-line treatment of advanced or metastatic pancreatic cancer with KRAS G12D mutation, in combination with gemcitabine and nab-paclitaxel. The designation recognizes HRS-4642 as the first-in-class KRAS G12D inhibitor globally to reach this regulatory milestone.

Regulatory Milestone

ItemDetail
CompanyJiangsu Hengrui Pharmaceuticals (SHA: 600276, HKG: 1276)
AgencyCDE/NMPA (China)
AssetHRS-4642 – KRAS G12D liposomal inhibitor
DesignationBreakthrough Therapy Designation (BTD)
IndicationFirst-line advanced/metastatic pancreatic cancer (KRAS G12D mutation)
CombinationHRS-4642 + gemcitabine + nab-paclitaxel
Global StatusNo approved KRAS G12D inhibitors domestically or internationally

Technology Platform & Mechanism of Action

  • Drug Class: KRAS G12D-targeting small molecule inhibitor – Addresses the most common KRAS mutation in pancreatic cancer
  • Formulation: Liposomal delivery system – Enhances tumor penetration and reduces systemic toxicity
  • Mechanism:
  • Specifically binds KRAS G12D mutant protein
  • Inhibits downstream MEK and ERK phosphorylation
  • Blocks oncogenic signaling driving tumor proliferation and survival
  • First-in-Class Status: No competing KRAS G12D inhibitors approved or in late-stage development globally

Target Indication & Unmet Need

ParameterDetailStrategic Significance
Pancreatic Cancer Incidence~500,000 new cases annually in China; KRAS G12D in ~40% of patientsLarge addressable population with mutation-specific targeting
Current StandardGemcitabine + nab-paclitaxel (median OS ~8-12 months)Limited survival improvement over decades
KRAS “Undruggable” HistoryG12C inhibitors (sotorasib, adagrasib) recently approved; G12D remains elusiveHRS-4642 addresses larger mutation subset than G12C
Combination RationaleChemotherapy backbone + targeted inhibitionPotential for synergistic efficacy without overlapping toxicity

Strategic Positioning & Market Context

  • KRAS G12D Market Opportunity: KRAS G12D represents the single most prevalent oncogenic driver in pancreatic ductal adenocarcinoma (PDAC), lung, and colorectal cancers—collectively representing a multi-billion dollar unmet need.
  • Hengrui Innovation Pivot: BTD for HRS-4642 validates Hengrui’s transition from generics to first-in-class oncology innovation, leveraging its liposomal formulation expertise and KRAS biology platform.
  • Competitive Landscape: While Mirati (Bristol Myers Squibb), Revolution Medicines, and Intellia pursue KRAS G12D programs, HRS-4642’s BTD positions Hengrui as global leader with potential first-to-market advantage in the world’s second-largest pharmaceutical market.
  • Breakthrough Therapy Benefits: CDE BTD provides accelerated development and review pathways, enhanced regulatory dialogue, and potential conditional approval based on Phase II data—compressing time-to-market by 12-18 months.

Development Roadmap

PhaseActivityAnticipated Timeline
CurrentBTD granted; Phase I/II trial ongoingQ1 2026
Near-termPhase II registrational data in first-line pancreatic cancer2026-2027
ExpansionMonotherapy and combination studies in lung/colorectal KRAS G12D2026-2028
Global StrategyUS/EU IND filing based on China efficacy data2027

Forward‑Looking Statements
This brief contains forward‑looking statements regarding HRS-4642 clinical development in KRAS G12D-mutant cancers, regulatory timelines for BTD-enabled approval, and Hengrui Pharmaceuticals’ global KRAS franchise expansion. Actual results may differ due to Phase II trial outcomes, competitive dynamics in the KRAS inhibitor space, and regulatory requirements for novel liposomal formulations.-Fineline Info & Tech