✦ Lepodisiran & the Lp(a) Long ShotThin moat

Eli Lilly (LLY) — the future bets

One shot, ninety-four percent silenced, a fifth of humanity eligible — and the verdict arrives near 2029.

The furthest-out bet targets the largest untreated risk factor in cardiology: lipoprotein(a), an inherited particle carried by roughly one person in five, untouched by statins, diet or exercise. Lepodisiran, Lilly's siRNA, silenced it — a 93.9% average reduction in Phase 2, sustained for a year after a single dose1. The decisive test is ACCLAIM-Lp(a): an estimated 17,300 patients, the largest trial the field has run, measuring whether crushing Lp(a) actually prevents heart attacks and strokes — with completion expected near 20292.

The long shot, quantified~1 in 5people carryelevated Lp(a)−93.9%Phase 2 reduction,one dose17,300patients in ACCLAIM~2029estimatedcompletionUntouched by statins, diet or exercise — the largest untreated risk factor in cardiology.
Spectacular biology awaiting its verdict: if outcomes follow, statin-scale medicine at biotech pricing; if not, a beautiful mechanism buried.

The wager's shape is binary and patient: if outcomes follow the biology, Lilly owns a once-or-twice-yearly injection addressing a risk factor in a billion-plus people — statin economics with biotech pricing. If the hypothesis fails, as cholesterol adjacents sometimes have, the program joins the graveyard of beautiful mechanisms. Novartis's pelacarsen reads out first and will preview the class's fate. Until then this is an option held cheaply against a decade of cardiovascular revenue — watch pelacarsen's result, ACCLAIM's enrollment pace, and any interim analysis the monitors let slip.

Moat trajectory: Holding steady

Holding by design: the Phase 2 biology is spectacular, the outcomes trial is enrolled, and nothing more can be known until the class's first readouts land. Novartis's pelacarsen previews the verdict; until then the option simply waits.

The number that tests this moat
Moat Explorer calc
Cardiometabolic health share of revenue, latest quarter
79.9% in Q2 2026 ($18.4B of $23.0B), from 72.9%

Lepodisiran would add a cardiovascular medicine to the same franchise. The share climbing toward 85% shows how much Lilly already depends on one therapeutic area.

How it's calculated: 18,353 / 22,974; 11,343 / 15,558.
Source: Lilly Form 10-Q, quarter ended 30 June 2026 ↗
References
  1. ReportedPhase 2 ALPACA: ~93.9% average Lp(a) reduction, sustained ~a year after one dose.
    Nissen SE et al., 'Lepodisiran - A Long-Duration Small Interfering RNA Targeting Lipoprotein(a)', N Engl J Med 2025;392:1673-1683 (ALPACA Phase 2), PubMed abstract - placebo-adjusted change in Lp(a) of -93.9 percentage points from day 60 to 180 in the pooled 400-mg groups — Phase 2 (ALPACA) · publ. March 30, 2025 · source ↗
  2. ReportedACCLAIM-Lp(a): an estimated 17,300 patients — the field's largest outcomes trial — completing near 2029.
    ClinicalTrials.gov NCT06292013 — ACCLAIM-Lp(a): lepodisiran cardiovascular-outcomes trial, an estimated 17,300 adults with elevated Lp(a); Phase 2 ALPACA showed ~93.9% Lp(a) reduction; estimated completion ~2029 — Ongoing (to ~2029) · publ. 2026 status · source ↗
Sources
Generated September 23, 2026