Company

Merrimack Pharmaceuticals

As of the edition of 20 October 2026, Merrimack Pharmaceuticals runs 9 drugs, 1 of them marketed; it is on route A at 5 targets and on route B at 0 targets.

Sources: ClinicalTrials.gov, FDA Orange Book and Purple Book, other approval registers, company records.

Family history

Merrimack Pharmaceuticals was dissolved.

  • Merrimack Pharmaceuticals: dissolved

Drugs by status

StatusCount
Marketed1
Went quiet3
Stopped5
Total9

Marketed drugs and when their US protection ends

DrugUS protectionRoute B rows
Irinotecannone listed2

A route B row is one company at one target.

Where it needs a new molecule

Route A at 5 targets, route B at 0 targets.

Three of its 5 rows, by target and route
TargetRoute
TOP2A DNA topoisomerase 2-alphaRoute A
IGF1R Insulin-like growth factor 1 receptorRoute A
ERBB2 Receptor tyrosine-protein kinase erbB-2Route A

All 5 rows on route A or B

In the product

5 company-target rows on route A or B; 2 are not shown here, and no score is.

Where its trials are

  • Cancer: 20 trials led
  • Skin and connective tissue: 13 trials led
  • Digestive system: 9 trials led