Clinical trial · Interventional
Simvastatin and Anastrozole in Treating Postmenopausal Women With Ductal Carcinoma In Situ or Invasive Breast Cancer
A Trial Assessing the Effect of Simvastatin on the Pharmacokinetics of Anastrozole
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
RATIONALE: Chemoprevention is the use of certain drugs to keep cancer from forming, growing, or coming back. The use of simvastatin and anastrozole may stop cancer from forming, growing, or coming back in patients with invasive breast cancer, ductal carcinoma in situ, or a high risk of breast cancer. PURPOSE: This phase II trial is studying how well giving simvastatin together with anastrozole works in treating postmenopausal women with invasive breast cancer, ductal carcinoma in situ, or a high risk of breast cancer.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Breast Cancer | Malignant Breast Neoplasm | CURATED_EXACT | 0.92 |
Interventions
Interventions (4)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| adjuvant therapy | Procedure | — | UNRESOLVED |
| anastrozole | Drug | Anastrozole | ALIAS |
| pharmacological study | Other | — | UNRESOLVED |
| simvastatin | Drug | — | UNRESOLVED |
Design
Arms and outcomes
Arms (1)
- type
- EXPERIMENTAL
- label
- Anastrozole and Simvastatin
- description
- This is a pharmacological study for women on anastrozole as adjuvant therapy for breast cancer to receive concurrent simvastatin for up to 14 days.
- interventionNames
- Drug: anastrozole
- Drug: simvastatin
- Other: pharmacological study
- Procedure: adjuvant therapy
Primary outcomes (1)
- measure
- Change in Blood Concentrations
- timeFrame
- Baseline and 14 days
- description
- The change in blood concentrations of anastrozole at baseline and 14 days was measured.
Secondary outcomes (1)
- measure
- Change in Serum Estradiol Levels
Eligibility
Eligibility (as posted)
- Sex
- Female
- Minimum age
- 18 Years
Show eligibility criteria text
DISEASE CHARACTERISTICS: * Meets any of the following criteria: * History of invasive breast cancer * History of ductal carcinoma in situ * At high risk for breast cancer, defined as being on anastrozole for chemoprevention of breast cancer * Receiving anastrozole for ≥ 30 days as adjuvant breast cancer treatment or for prevention of breast cancer * No active breast cancer with known metastatic involvement * Hormone receptor status not specified PATIENT CHARACTERISTICS: * Female * Postmenopausal * ECOG performance status 0-2 * AST and ALT ≤ 3 times upper limit of normal * Creatinine clearance ≥ 30 mL/min * No active liver disease * No prior hypersensitivity to any HMG-CoA reductase inhibitor or any of its components * No daily alcohol use of \> 3 standard drinks/day * A standard drink is defined as 10 g of alcohol, which is equivalent to 285 mL of beer, 530 mL of light beer, 100 mL of wine, or 30 mL of liquor PRIOR CONCURRENT THERAPY: * See Disease Characteristics * No cholesterol-lowering drug, including a statin, within the past 3 months * No selective estrogen receptor modulator (SERM) within the past 3 months * No other hormone therapy within the past 3 months * No prior estrogen and/or progesterone hormone replacement therapy that lasted for ≥ 5 years * Vaginal estrogen preparations allowed * No other concurrent statin or cholesterol-lowering drug * No other concurrent SERM * No other concurrent hormone therapy * No other concurrent investigational drugs * No concurrent CYP3A4 inhibitors, including itraconazole, ketoconazole, erythromycin, clarithromycin, telithromycin, HIV protease inhibitors, nefazodone, or cyclosporine * No concurrent chemotherapy or biological agents * No concurrent daily grapefruit juice \> 8 oz/day * No other concurrent anticancer agents or therapies
References
Publications (0)
Data not yet available