Drug

Lasofoxifene clinical trials

Includes 1 study of Lasofoxifene tartrate.

studies test it: 8
open now: 3
in phase 3: 3
first study started: 2001

How each study uses Lasofoxifene is sorted by a rule, right about nine times in ten. Readers can ask us to read every study one by one.Ask us to read each study

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Approvals

The first approval found in each region, with its record

United States: Not in FDA's approval records
European Union: 24 Feb 2009 · Fablyn · EMEA/H/C/000977 (EMA; now lapsed)

From FDA's Drugs@FDA and Purple Book (through openFDA) and the European Medicines Agency, files of Sept 2026 and 27 Oct 2026. National approvals in Europe and other countries are not included. How this is worked out

How studies write it

Studies that test it under each name

Name

Lasofoxifene: 6

Studies by the year they started

8 studies that test it; most in 2004 (2)

Studies that test Lasofoxifene, by start year
Year	Studies
2001	1
2003	1
2004	2
2010	1
2019	1
2023	1
2026	1

By phase

A phase 1/2 study counts in both.

Phase 2: 5
Phase 3: 3

What it is tested for

Each study’s main condition, where its own words name it, so a study counts once.

Osteoporosis: 4
Breast Neoplasms: 2
Triple Negative Breast Neoplasms: 1

Who runs them

Industry 7 · Other 1

Ligand Pharmaceuticals (4) · Sermonix Pharmaceuticals Inc. (1) · LeonaBio (1) · Azure Biotech Inc. (1) · QuantumLeap Healthcare Collaborative (1)

Often tested with

Tested in the same studies.

Trastuzumab (1) · Ganitumab (1) · Ado-Trastuzumab Emtansine (1) · Pertuzumab (1) · STA 9090 (1) · Veliparib (1) · Neratinib (1) · Pexidartinib (1)

Coming up

From the study records. Dates are the sponsors’ own estimates and often move.

Reaching primary completion within a year · 2, 1 in phase 3

Studies that test Lasofoxifene, phase 3 first.

Apr 2027Evaluation of Lasofoxifene Combined With Abemaciclib Compared With Fulvestrant Combined With Abemaciclib in Locally Advanced or Metastatic ER+/HER2- Breast Cancer With an ESR1 MutationPhase 3 · LeonaBio
Dec 2026Proof of Concept Study of Vaginal AZU-101 in Vulvovaginal Atrophy in Postmenopausal WomenPhase 2 · Azure Biotech Inc.

Studies

Open first, then newest update. How each study uses Lasofoxifene is read from its arms, and is right about nine times in ten. Ask us to read each study. These are the studies that list it as an intervention; a search of ClinicalTrials.gov also finds studies that mention it only in a description, such as earlier treatment.

Testing it · 8

Codes

What other systems call Lasofoxifene · ClinicalTrials.gg INT004058

MeSH (NLM) C111332LasofoxifeneConfirmed ClinicalTrials.gov, NLM
UNII (FDA) 337G83N988LASOFOXIFENEConfirmed FDA, NLM, Wikidata
Wikidata Q644675lasofoxifeneConfirmed FDA, NLM, Wikidata
NCI Thesaurus C80679LasofoxifeneOne source FDA
DrugBank DB06202One source Wikidata

System	Code	Name there	Checked by
MeSH (NLM)	C111332	Lasofoxifene	Confirmed ClinicalTrials.gov, NLM
UNII (FDA)	337G83N988	LASOFOXIFENE	Confirmed FDA, NLM, Wikidata
Wikidata	Q644675	lasofoxifene	Confirmed FDA, NLM, Wikidata
NCI Thesaurus	C80679	Lasofoxifene	One source FDA
DrugBank	DB06202	—	One source Wikidata

Also registered as lasofoxifene hydrochloride (UNII UEY1KQM2MR).

“Confirmed” means two independent publishers link the code to this drug; “one source”, one does and its name agrees.