LONGEFI
Company · Private

Metro International Biotech

Developing pharmaceutical-grade NAD+ precursors intended to be tested as drugs rather than supplements.

EvidenceModerate
Listing
Private
Ticker
Headquarters
Worcester, US
Founded
2016
Technology
NAD+ precursors
Category
Market cap
Private

Longevity thesis

NAD+ biology only becomes investable when it is held to a clinical evidence standard.

Pipeline

ProgrammeStageFocus
MIB-626Phase 2Cardiometabolic and muscle function

Recent developments

  • 27 May 2026Completed enrolment in a cardiometabolic Phase 2.

Scientific evidence

EvidenceModerate

Human trials underway; consumer NAD+ evidence remains weak and should not be conflated.

LONGEFI analysis

The distinction between clinical NAD+ programmes and the supplement market is the single most misunderstood point in this category.

Analysis is research commentary. It is not investment advice or a recommendation.