Clinical trialNCT00097344TerminatedPhase 3Interventional

The CAT Study: Atamestane Plus Toremifene Versus Letrozole in Advanced Breast Cancer

SponsorIntarcia TherapeuticsEnrollment842Breast NeoplasmsNeoplasms, Hormone-Dependent

View the registry record on ClinicalTrials.gov

Summary

The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

Edith Perez, MD
Professor of Medicine, Mayo Clinic, Jacksonville, Florida
Study Chair
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

104 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

Bulgaria

Research Site
Blagoevgrad, Bulgaria
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Plovdiv, Bulgaria
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Shumen, Bulgaria
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Sofia, Bulgaria
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Sofia, Bulgaria
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Stara Zagora, Bulgaria
Research Site
Varna, Bulgaria

Romania

Research Site
Arad, Romania
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Brasov, Romania
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Bucharest, Romania
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Bucharest, Romania
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Cluj-Napoca, Romania
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Oradea, Romania
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Ploieşti, Romania
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Timișoara, Romania
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Târgu Mureş, Romania

Russia

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Arkhangelsk, Russia
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Astrakhan, Russia
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Chelyabinsk, Russia
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Engel's, Russia
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Irkutsk, Russia
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Kaliningrad, Russia
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Kaluga, Russia
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Kazan', Russia
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Krasnodar, Russia
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Moscow, Russia
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Moscow, Russia
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Omsk, Russia
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Orenburg, Russia
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Oryol, Russia
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Perm, Russia
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Pyatigorsk, Russia
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Saint Petersburg, Russia
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Saint Petersburg, Russia
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Saint Petersburg, Russia
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Sochi, Russia
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Syktyvkar, Russia
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Tambov, Russia
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Ufa, Russia
Research Site
Ulyanovsk, Russia

64 more sites on the registry record.ClinicalTrials.gov ↗

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 31 Dec 2004
Primary completion: —
Completion: 31 Aug 2006
Last update posted: 23 Aug 2007
Registered enrollment: 842
Registry id: NCT00097344

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.