Merck Sharp & Dohme Inc. (MSD, NYSE: MRK) announced the initiation of KANDLELIT‑007, a Phase 3 clinical trial evaluating calderasib (MK‑1084), an investigational oral selective KRAS G12C inhibitor, in combination with KEYTRUDA QLEX (pembrolizumab + berahyaluronidase alfa-pmph) for the first‑line treatment of patients with KRAS G12C‑mutant, advanced or metastatic nonsquamous non‑small cell lung cancer (NSCLC).

Clinical Trial Design

ItemDetail
Study NameKANDLELIT‑007 (NCT07190248)
PhasePhase 3
DesignRandomized, unblinded open‑label, multicenter
PopulationNewly diagnosed KRAS G12C‑mutant advanced/metastatic nonsquamous NSCLC
Enrollment~675 patients globally
RegimenCalderasib (oral QD) + KEYTRUDA QLEX (SC) vs. KEYTRUDA QLEX + pemetrexed + carboplatin/cisplatin (IV)
Primary EndpointProgression‑free survival (PFS) in PD‑L1 TPS ≥ 1% patients
Key Secondary EndpointsPFS in all participants, OS, ORR, DOR, safety (PD‑L1 ≥ 1% and all comers)

Product Profile

Calderasib (MK‑1084):

  • Mechanism: Potent, specific, covalent KRAS G12C inhibitor
  • Administration: Oral once daily

KEYTRUDA QLEX:

  • Fixed‑combination: Pembrolizumab (PD‑1 blocker) + berahyaluronidase alfa
  • Mechanism: Hyaluronidase enhances dispersion for subcutaneous pembrolizumab delivery

Synergistic Rationale: KRAS G12C inhibition sensitizes tumors to PD‑1 blockade, while SC administration improves patient convenience.

Market Opportunity: KRAS G12C NSCLC

Disease Burden:

  • Global Incidence: ~45,000 KRAS G12C‑mutant NSCLC cases annually (US: 13,000; China: 18,000)
  • Current Standard: Chemo‑immunotherapy (ORR ≈ 30‑40%, mPFS ≈ 6 months)
  • Market Size: ¥8‑10 billion China opportunity; $3‑4 billion US opportunity by 2030

Competitive Landscape:

  • Sotorasib (Amgen) and adagrasib (Mirati/BMS) approved for later lines only
  • No approved first‑line KRAS G12C therapy globally

Financial Implications

Investment: Merck will allocate USD 250‑300 million for KANDLELIT‑007 trial execution.

Peak Sales Potential: If successful, the combination could generate $2‑3 billion globally, with KEYTRUDA franchise benefiting from extended lifecycle.

Forward‑Looking Statements
This brief contains forward‑looking statements regarding clinical trial outcomes, regulatory timelines, and market penetration for calderasib and KEYTRUDA QLEX. Actual results may differ materially.-Fineline Info & Tech