Overview ATAC - Pharmacokinetics (PK) Sub-Protocol Status: Completed Trial end date: 1999-03-01 Target enrollment: Participant gender: Summary To assess the effect of ARIMIDEX on the pharmacokinetics of tamoxifen and the effects of tamoxifen on the pharmacokinetics of ARIMIDEX.. Phase: Phase 3 Details Lead Sponsor: AstraZenecaTreatments: AnastrozoleTamoxifen