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A Survey Of Clinical Practice Of Adjuvant Treatment Of Breast Cancer Using Exemestane (Aromasin®) In Postmenopausal Hr+ Patients

A Survey Of Clinical Practice Of Adjuvant Treatment Of Breast Cancer Using Exemestane (Aromasin®) In Postmenopausal Hr+ Patients

Status
Terminated
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01305239
Acronym
ETAPE
Enrollment
398
Registered
2011-02-28
Start date
2008-10-31
Completion date
2011-05-31
Last updated
2012-04-10

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

Conditions

Breast Cancer

Keywords

Observational, epidemiological, cohort, cross-sectional, prospective, multicenter, survey, France.

Brief summary

Observational survey aiming to evaluate the tolerability of Aromasin and the ways in which it is used in clinical practice in France (as adjuvant endocrine therapy).

Detailed description

It was hypothesized that 200 participating doctors would provide the survey with sufficient statistical precision to meet the objectives, with each participating doctor recruiting up to 6 patients. An initial sample of 1000 doctors should be contacted (letter, phone). These 1000 doctors will initially be chosen at random from a file held by Pfizer of doctors who have agreed to take part in a Pfizer survey. These doctors will be experienced and qualified in the treatment and management of patients with non-metastatic, surgically-treated breast cancer (medical oncologists, gynaecologists, and medical oncologists/ radiation oncologists). They are practicing in general hospitals, teaching hospitals, CRLCC cancer centres and private clinics treating patients with breast cancer. Study recruitment was stopped due to difficulty in enrolling the targeted number of patients on December 3, 2010. There were no safety concerns involved in the decision to stop enrollment.

Interventions

Aromasin 25 mg daily.

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
45 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Postmenopausal patients, defined as: natural menopause for at least 1 year, surgical ovariectomy, chemotherapy-induced amenorrhoea for at least 2 years. Patients who have had surgical treatment for histologically confirmed breast cancer that was nonmetastatic at the time of the initial diagnosis. Patients whose tumour was hormone receptor positive (HR+, ER+ and/or PR+). Patients initiated on Aromasin at least 2 months before inclusion but not more than 1 year.

Exclusion criteria

Patients for whom Aromasin treatment is contraindicated. Presence of metastasis or a contralateral tumour. Another adjuvant endocrine therapy. Another concomitant antineoplastic treatment (except for Herceptin®). Participation in a clinical trial with an investigational drug during the 30 days prior to enrolment in the study.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Baseline, every 6 months until adjuvant hormonal therapy stopped or up to 5 years of therapy completedAny untoward medical occurrence in a patient who received study drug was considered an adverse event without regard to possibility of causal relationship. An adverse event resulting in any of the following outcomes, or deemed to be significant for any other reason, was considered to be a serious adverse event: death; initial or prolonged inpatient hospitalization; a life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.

Secondary

MeasureTime frameDescription
Reasons for Discontinuation of Aromasin TherapyBaseline, every 6 months until adjuvant hormonal therapy stopped or up to 5 years of therapy completed
Percentage of Participants Who Were Compliant With TreatmentBaseline, every 6 months until adjuvant hormonal therapy stopped or up to 5 years of therapy completedCompliant with treatment = followed treatment regimen with exemestane according to initial prescription.
Duration of TreatmentBaseline, every 6 months until adjuvant hormonal therapy stopped or up to 5 years of therapy completedTotal duration of adjuvant hormonal therapy with exemestane.
Event-free SurvivalBaseline, every 6 months until adjuvant hormonal therapy stopped or up to 5 years of therapy completedEvent-free survival: time between first intake of exemestane and date of last follow-up or date of death for deceased participants (date of relapse or death or last follow-up minus first intake date) + 1 / 365.25 \* 12.

Participant flow

Participants by arm

ArmCount
Exemestane
25 mg oral tablet once a day
397
Total397

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event22
Overall StudyExemestane taken prior to inclusion only1

Baseline characteristics

CharacteristicExemestane
Age Continuous63.1 years
STANDARD_DEVIATION 10.3
Sex: Female, Male
Female
397 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
173 / 397
serious
Total, serious adverse events
2 / 397

Outcome results

Primary

Percentage of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)

Any untoward medical occurrence in a patient who received study drug was considered an adverse event without regard to possibility of causal relationship. An adverse event resulting in any of the following outcomes, or deemed to be significant for any other reason, was considered to be a serious adverse event: death; initial or prolonged inpatient hospitalization; a life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.

Time frame: Baseline, every 6 months until adjuvant hormonal therapy stopped or up to 5 years of therapy completed

Population: Safety set: all participants who received at least 1 dose of study medication.

ArmMeasureGroupValue (NUMBER)
ExemestanePercentage of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)AE41.6 percentage of participants
ExemestanePercentage of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)SAE0.5 percentage of participants
Secondary

Duration of Treatment

Total duration of adjuvant hormonal therapy with exemestane.

Time frame: Baseline, every 6 months until adjuvant hormonal therapy stopped or up to 5 years of therapy completed

Population: Safety set; N = number of participants with analyzable (non-missing) data. For 2 participants lost to follow-up, the duration of exemestane was calculated until the date of lost to follow-up.

ArmMeasureValue (MEAN)Dispersion
ExemestaneDuration of Treatment15.9 monthsStandard Deviation 7.8
Secondary

Event-free Survival

Event-free survival: time between first intake of exemestane and date of last follow-up or date of death for deceased participants (date of relapse or death or last follow-up minus first intake date) + 1 / 365.25 \* 12.

Time frame: Baseline, every 6 months until adjuvant hormonal therapy stopped or up to 5 years of therapy completed

Population: ITT population = all participants who received at least 1 dose of study drug and had at least 1 follow-up questionnaire completed. N = number of participants with analyzable (non-missing) data.

ArmMeasureValue (MEAN)
ExemestaneEvent-free Survival16.2 months
Secondary

Percentage of Participants Who Were Compliant With Treatment

Compliant with treatment = followed treatment regimen with exemestane according to initial prescription.

Time frame: Baseline, every 6 months until adjuvant hormonal therapy stopped or up to 5 years of therapy completed

Population: Safety set. Information on compliance was not available for subjects who did not have a follow-up visit. N = number of participants with analyzable data.

ArmMeasureValue (NUMBER)
ExemestanePercentage of Participants Who Were Compliant With Treatment90.2 percentage of participants
Secondary

Reasons for Discontinuation of Aromasin Therapy

Time frame: Baseline, every 6 months until adjuvant hormonal therapy stopped or up to 5 years of therapy completed

Population: Safety set. N = number of participants with follow-up visit(s) who discontinued treatment with exemestane.

ArmMeasureGroupValue (NUMBER)
ExemestaneReasons for Discontinuation of Aromasin TherapyTherapeutic choice9 participants
ExemestaneReasons for Discontinuation of Aromasin TherapyAdverse events36 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026