Estrone
As of the edition of 20 October 2026, Estrone is a small molecule: marketed, first approved in 1982 (US); acts on ESR1; no US protection is listed.
Sources: FDA Orange Book and Purple Book, other approval registers, ClinicalTrials.gov, ChEMBL.
The drug
- Status
- Marketed; latest approval 2017
- Kind
- Small molecule
- Brand name
- Theelin
- First approved
- 1 January 1982 (US)
- Approvals on record
- 5 in 3 regions
- Holder of the most recent approval
- Boiron; 3 holders in all
US protection
No US protection is listed.
The FDA registers list no drug-substance patent or exclusivity that counts for this drug.
This is the US only.
Companies that need a new molecule because of this drug
1 company on route B because of this drug.
Companies on route B for this drug
In the product1 company is on route B because of Estrone.
See the 1 company on route B for this drug, with the facts behind eachRequest access. Nothing is shown until you do.
Target
| Gene | Protein | UniProt |
|---|---|---|
| ESR1 | Estrogen receptor | P03372 |