Breast Cancer
Conditions
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
Study design
Eligibility
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
| Measure | Time frame | Description |
|---|---|---|
| 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 completed | 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. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Reasons for Discontinuation of Aromasin Therapy | Baseline, every 6 months until adjuvant hormonal therapy stopped or up to 5 years of therapy completed | — |
| Percentage of Participants Who Were Compliant With Treatment | Baseline, every 6 months until adjuvant hormonal therapy stopped or up to 5 years of therapy completed | Compliant with treatment = followed treatment regimen with exemestane according to initial prescription. |
| Duration of Treatment | Baseline, every 6 months until adjuvant hormonal therapy stopped or up to 5 years of therapy completed | Total duration of adjuvant hormonal therapy with exemestane. |
| Event-free Survival | Baseline, every 6 months until adjuvant hormonal therapy stopped or up to 5 years of therapy completed | 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. |
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| Exemestane 25 mg oral tablet once a day | 397 |
| Total | 397 |
Withdrawals & dropouts
| Period | Reason | FG000 |
|---|---|---|
| Overall Study | Adverse Event | 22 |
| Overall Study | Exemestane taken prior to inclusion only | 1 |
Baseline characteristics
| Characteristic | Exemestane |
|---|---|
| Age Continuous | 63.1 years STANDARD_DEVIATION 10.3 |
| Sex: Female, Male Female | 397 Participants |
| Sex: Female, Male Male | 0 Participants |
Adverse events
| Event type | EG000 affected / at risk |
|---|---|
| deaths Total, all-cause mortality | — / — |
| other Total, other adverse events | 173 / 397 |
| serious Total, serious adverse events | 2 / 397 |
Outcome results
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.
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| Exemestane | Percentage of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs) | AE | 41.6 percentage of participants |
| Exemestane | Percentage of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs) | SAE | 0.5 percentage of participants |
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.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Exemestane | Duration of Treatment | 15.9 months | Standard Deviation 7.8 |
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.
| Arm | Measure | Value (MEAN) |
|---|---|---|
| Exemestane | Event-free Survival | 16.2 months |
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.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Exemestane | Percentage of Participants Who Were Compliant With Treatment | 90.2 percentage of participants |
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.
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| Exemestane | Reasons for Discontinuation of Aromasin Therapy | Therapeutic choice | 9 participants |
| Exemestane | Reasons for Discontinuation of Aromasin Therapy | Adverse events | 36 participants |