Sino Biopharm Doses First Patient in Phase II Study of Kylo-11 – First-in-Class siRNA Targeting LPA for Cardiovascular Disease

Sino Biopharmaceutical Ltd (HKG: 1177) announced first patient enrollment in the Phase II Kylo-11-II-C01 study evaluating Kylo-11, a novel siRNA drug targeting lipoprotein(a) [Lp(a)], in patients with atherosclerotic cardiovascular disease (ASCVD) and elevated Lp(a) levels.

Clinical Milestone

ParameterDetail
StudyKylo-11-II-C01
PhasePhase II
First PatientEnrolled April 2026
ProductKylo-11 (siRNA therapeutic)
TargetLPA (lipoprotein(a))
IndicationASCVD with elevated Lp(a)

Technology Platform & Differentiation

  • Platform: MVIP Delivery PlatformChina’s first globally patented siRNA delivery technology
  • Innovation: World’s first dual-conjugated siRNA delivery technology
  • Key Features:
  • Efficient cellular delivery enhancing tissue penetration
  • Protection of antisense strand from exonuclease degradation
  • Enhanced in vivo stability prolonging therapeutic activity
  • Reduced plasma degradation of antisense strand improving bioavailability
  • Clinical Advantage: Ultra-long-lasting effects enabling extended dosing intervals vs. conventional siRNA therapies

Mechanism of Action

  • Target: LPA gene – encodes apolipoprotein(a), a causal risk factor for ASCVD independent of LDL cholesterol
  • Mechanism: siRNA-mediated gene silencing reduces hepatic Lp(a) production
  • Unmet Need: ~20% of global population has elevated Lp(a); no approved targeted therapies currently available

Market Context & Outlook

  • Lp(a) Inhibitor Market: Projected US$10‑15 billion peak opportunity; validated by Novartis pelacarsen and Amgen olpasiran Phase II data
  • Competitive Landscape:
CompanyAssetMechanismStatus
NovartisPelacarsenASO (antisense oligonucleotide)Phase III (HORIZON)
AmgenOlpasiransiRNAPhase II
Sino BiopharmKylo-11siRNA (MVIP platform)Phase II (initiated)
  • Differentiation: MVIP platform’s dual-conjugation technology may offer superior durability and potency vs. first-generation siRNA delivery systems
  • Strategic Value: First-mover position in China siRNA cardiovascular space; platform applicable to hepatic-targeted gene silencing across metabolic and rare diseases
  • Revenue Potential: Peak China sales estimated at RMB 2‑3 billion (US$280‑420 million) by 2033 assuming 2029‑2030 launch and 15‑20% penetration in eligible ASCVD population

Forward‑Looking Statements
This brief contains forward‑looking statements regarding clinical trial outcomes, platform validation, and commercial projections for Kylo-11. Actual results may differ due to risks including efficacy failures, safety signals, competitive advances from Novartis/Amgen programs, and regulatory requirements for novel siRNA delivery technologies.-Fineline Info & Tech