# ATAC - Pharmacokinetics (PK) Sub-Protocol

> **NCT00784862** · PHASE3 · COMPLETED · sponsor: **AstraZeneca** · enrollment: 9358 (actual)

## Conditions studied

- Breast Cancer

## Interventions

- **DRUG:** Anastrozole
- **DRUG:** Tamoxifen

## Key facts

- **NCT ID:** NCT00784862
- **Lead sponsor:** AstraZeneca
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 1998-06
- **Primary completion:** —
- **Final completion:** 1999-03
- **Target enrollment:** 9358 (ACTUAL)
- **Last updated:** 2009-05-15


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00784862

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00784862, "ATAC - Pharmacokinetics (PK) Sub-Protocol". Retrieved via AI Analytics 2026-07-26 from https://api.ai-analytics.org/clinical/NCT00784862. Licensed CC0.

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