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An Open-Label, Randomized, Parallel Group, Multicentre Study to Compare Oestradiol Suppression Between ZOLADEX 10.8 Mg Depot Given 3 Monthly and ZOLADEX 3.6 Mg Depot Given Monthly in Pre-Menopausal Patients With ER Positive Early Breast Cancer

An Open-Label, Randomized, Parallel Group, Multicentre Study to Compare Oestradiol Suppression Between ZOLADEX 10.8 Mg Depot Given 3 Monthly and ZOLADEX 3.6 Mg Depot Given Monthly in Pre-Menopausal Patients With ER Positive Early Breast Cancer

Status
Unknown
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2080220258
Enrollment
Unknown
Registered
2006-06-22
Start date
2006-06-22
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Breast Cancer

Interventions

Sponsors

AstraZeneca
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: Ages Eligible for Study: 20 Years and above, Genders Eligible for Study: Female Criteria Inclusion Criteria: Pre-menopausal women aged 20 years or over with histological/cytologically-confirmed ER +ve breast cancer who have undergone radical surgery and WHO performance status 0,1 or 2. Exclusion Criteria: Evidence of metastatic disease, previous bilateral oophorectomy or radiotherapy to the ovaries, previous chemotherapy, breast surgery completed over 12 weeks before starting trial treatment, previous neo-adjuvant/adjuvant hormonal breast cancer therapy

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

MeasureTime frame
Safety/Efficacy Primary Outcomes: Zoladex 10.8mg depot (every 12 weeks) is non-inferior to Zoladex 3.6mg depot (every 4 weeks) in terms of oestradiol (E2) suppression in patient population by assessment of area under the curve of E2 concentration during the first 24 weeks of treatment. Secondary Outcomes: Zoladex 10.8mg has similar safety and tolerability profile to Zoladex 3.6mg. Examination of goserelin pharmacokinetics (PK) in Japanese patients after injection of Zoladex 10.8mg. Efficacy of Zoladex 10.8mg is similar to 3.6mg by assessment of DFS.

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026