Trial Outcomes & Findings for A Non-Interventional Study With Aromasin® As Adjuvant Treatment Of Invasive Early Breast Cancer (NCT NCT01121549)

NCT ID: NCT01121549

Last Updated: 2014-01-22

Results Overview

An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. Treatment-emergent are events between first dose of study drug and up to 28 days after last dose that were absent before treatment or that worsened relative to pretreatment state. AEs were graded using National Cancer Institute (NCI)/Cancer Therapy Evaluation Program (CTEP) Common Terminology Criteria for Adverse Events version 4.0 (CTCAE,v4.0) as Grade 1 (Mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; intervention not indicated); Grade 2 (Moderate; minimal, local or noninvasive intervention; limiting age-appropriate instrumental activities of daily living \[ADL\]); Grade 3 (Severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization; disabling; limiting self-care ADL); Grade 4 (Life-threatening; urgent intervention indicated) and Grade 5 (Death related to AE).

Recruitment status

TERMINATED

Target enrollment

378 participants

Primary outcome timeframe

Baseline up to 28 days after last dose

Results posted on

2014-01-22

Participant Flow

All participants were recruited from Romania.

Participant milestones

Participant milestones
Measure
Exemestane
Participants with 2 to 3 years of initial adjuvant tamoxifen therapy received exemestane (Aromasin) 25 milligram (mg) tablet orally once daily as per local standard of care to complete 5 years of adjuvant hormonal therapy.
Overall Study
STARTED
378
Overall Study
COMPLETED
31
Overall Study
NOT COMPLETED
347

Reasons for withdrawal

Reasons for withdrawal
Measure
Exemestane
Participants with 2 to 3 years of initial adjuvant tamoxifen therapy received exemestane (Aromasin) 25 milligram (mg) tablet orally once daily as per local standard of care to complete 5 years of adjuvant hormonal therapy.
Overall Study
Adverse Event
10
Overall Study
Lack of Efficacy
11
Overall Study
Lost to Follow-up
12
Overall Study
Did not meet entrance criteria
9
Overall Study
Study terminated by sponsor
197
Overall Study
Pregnancy
1
Overall Study
Protocol Violation
33
Overall Study
Withdrawal by Subject
16
Overall Study
Other
58

Baseline Characteristics

A Non-Interventional Study With Aromasin® As Adjuvant Treatment Of Invasive Early Breast Cancer

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Exemestane
n=378 Participants
Participants with 2 to 3 years of initial adjuvant tamoxifen therapy received exemestane (Aromasin) 25 milligram (mg) tablet orally once daily as per local standard of care to complete 5 years of adjuvant hormonal therapy.
Age, Continuous
58.3 years
STANDARD_DEVIATION 9.6 • n=5 Participants
Sex: Female, Male
Female
378 Participants
n=5 Participants
Sex: Female, Male
Male
0 Participants
n=5 Participants
Number of Participants With Type of Tumor
Ductal Carcinoma
58 participants
n=5 Participants
Number of Participants With Type of Tumor
Lobular Carcinoma
4 participants
n=5 Participants
Number of Participants With Type of Tumor
Invasive Ductal Carcinoma
246 participants
n=5 Participants
Number of Participants With Type of Tumor
Invasive Lobular Carcinoma
22 participants
n=5 Participants
Number of Participants With Type of Tumor
Papillary Carcinoma
2 participants
n=5 Participants
Number of Participants With Type of Tumor
Medullary Carcinoma
1 participants
n=5 Participants
Number of Participants With Type of Tumor
Mucinous (Colloid) Carcinoma
5 participants
n=5 Participants
Number of Participants With Type of Tumor
Other
24 participants
n=5 Participants
Number of Participants With Type of Tumor
Missing/No Response
16 participants
n=5 Participants
Number of Participants With Type of Surgery
Appendicectomy
6 participants
n=5 Participants
Number of Participants With Type of Surgery
Breast lump removal
1 participants
n=5 Participants
Number of Participants With Type of Surgery
Cataract operation
1 participants
n=5 Participants
Number of Participants With Type of Surgery
Cholecystectomy
17 participants
n=5 Participants
Number of Participants With Type of Surgery
Hysterectomy
3 participants
n=5 Participants
Number of Participants With Type of Surgery
Intervertebral disc operation
1 participants
n=5 Participants
Number of Participants With Type of Surgery
Malignant tumor excision
1 participants
n=5 Participants
Number of Participants With Type of Surgery
Salpingo-oophorectomy bilateral
1 participants
n=5 Participants
Number of Participants With Type of Surgery
Splenectomy
1 participants
n=5 Participants
Number of Participants With Estrogen Receptor Positive
378 participants
n=5 Participants
Number of Participants With Lymph Node Involvement
NA participants
n=5 Participants
Number of Participants With Tumor Node Metastasis (TNM) Stage
Stage I
64 participants
n=5 Participants
Number of Participants With Tumor Node Metastasis (TNM) Stage
Stage IIA
129 participants
n=5 Participants
Number of Participants With Tumor Node Metastasis (TNM) Stage
Stage IIB
92 participants
n=5 Participants
Number of Participants With Tumor Node Metastasis (TNM) Stage
Stage IIIA
67 participants
n=5 Participants
Number of Participants With Tumor Node Metastasis (TNM) Stage
Stage IIIB
16 participants
n=5 Participants
Number of Participants With Tumor Node Metastasis (TNM) Stage
Stage IIIC
2 participants
n=5 Participants
Number of Participants With Tumor Node Metastasis (TNM) Stage
Other
2 participants
n=5 Participants
Number of Participants With Tumor Node Metastasis (TNM) Stage
Missing/No Response
6 participants
n=5 Participants
Number of Participants With Histopathological Grade
Grade 1
62 participants
n=5 Participants
Number of Participants With Histopathological Grade
Grade 2
178 participants
n=5 Participants
Number of Participants With Histopathological Grade
Grade 3
65 participants
n=5 Participants
Number of Participants With Histopathological Grade
Unknown
70 participants
n=5 Participants
Number of Participants With Histopathological Grade
Missing/No Response
3 participants
n=5 Participants
Number of Participants With Prior Chemotherapy
0 participants
n=5 Participants
Number of Participants With Prior Radiation Therapy
239 participants
n=5 Participants

PRIMARY outcome

Timeframe: Baseline up to 28 days after last dose

Population: Safety analysis set included all participants who had received at least 1 dose of exemestane during the observation period.

An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. Treatment-emergent are events between first dose of study drug and up to 28 days after last dose that were absent before treatment or that worsened relative to pretreatment state. AEs were graded using National Cancer Institute (NCI)/Cancer Therapy Evaluation Program (CTEP) Common Terminology Criteria for Adverse Events version 4.0 (CTCAE,v4.0) as Grade 1 (Mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; intervention not indicated); Grade 2 (Moderate; minimal, local or noninvasive intervention; limiting age-appropriate instrumental activities of daily living \[ADL\]); Grade 3 (Severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization; disabling; limiting self-care ADL); Grade 4 (Life-threatening; urgent intervention indicated) and Grade 5 (Death related to AE).

Outcome measures

Outcome measures
Measure
Exemestane
n=378 Participants
Participants with 2 to 3 years of initial adjuvant tamoxifen therapy received exemestane (Aromasin) 25 milligram (mg) tablet orally once daily as per local standard of care to complete 5 years of adjuvant hormonal therapy.
Number of Participants With Treatment-Emergent Adverse Events (AEs) by Severity
Grade 1
6 participants
Number of Participants With Treatment-Emergent Adverse Events (AEs) by Severity
Grade 2
8 participants
Number of Participants With Treatment-Emergent Adverse Events (AEs) by Severity
Grade 3
6 participants
Number of Participants With Treatment-Emergent Adverse Events (AEs) by Severity
Grade 4
2 participants
Number of Participants With Treatment-Emergent Adverse Events (AEs) by Severity
Grade 5
0 participants
Number of Participants With Treatment-Emergent Adverse Events (AEs) by Severity
Missing or Unknown
2 participants

PRIMARY outcome

Timeframe: Baseline up to 28 days after last dose

Population: Safety analysis set included all participants who had received at least 1 dose of exemestane during the observation period.

An AE (all causalities) was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent are events between first dose of study drug and up to 28 days after last dose that were absent before treatment or that worsened relative to pretreatment state. Relatedness to exemestane was assessed by the investigator (Yes/No). Participants with multiple occurrences of an AE within a category were counted once within the category.

Outcome measures

Outcome measures
Measure
Exemestane
n=378 Participants
Participants with 2 to 3 years of initial adjuvant tamoxifen therapy received exemestane (Aromasin) 25 milligram (mg) tablet orally once daily as per local standard of care to complete 5 years of adjuvant hormonal therapy.
Number of Participants With Treatment-Emergent Adverse Events (AEs) or Serious Adverse Events (SAEs) by Relationship to Study Drug
AEs (All Causalities)
24 participants
Number of Participants With Treatment-Emergent Adverse Events (AEs) or Serious Adverse Events (SAEs) by Relationship to Study Drug
SAEs (All Causalities)
5 participants
Number of Participants With Treatment-Emergent Adverse Events (AEs) or Serious Adverse Events (SAEs) by Relationship to Study Drug
AEs (Treatment Related)
13 participants
Number of Participants With Treatment-Emergent Adverse Events (AEs) or Serious Adverse Events (SAEs) by Relationship to Study Drug
SAEs (Treatment Related)
0 participants

SECONDARY outcome

Timeframe: Week 25, 49, 73, 97, 121, 145

Population: Full analysis set (FAS) included all participants who had received at least 1 dose of exemestane during the observation period. 'N' (number of participants analyzed)=participants evaluable for this measure. n=number of participants evaluable at specified time points. None of the participants were evaluable at Week 145 and hence data not reported.

Outcome measures

Outcome measures
Measure
Exemestane
n=18 Participants
Participants with 2 to 3 years of initial adjuvant tamoxifen therapy received exemestane (Aromasin) 25 milligram (mg) tablet orally once daily as per local standard of care to complete 5 years of adjuvant hormonal therapy.
Number of Missed Exemestane Doses
Week 25 (n=18)
4.9 missed doses
Standard Deviation 7.02
Number of Missed Exemestane Doses
Week 49 (n=8)
9.6 missed doses
Standard Deviation 20.40
Number of Missed Exemestane Doses
Week 73 (n=5)
7.6 missed doses
Standard Deviation 12.54
Number of Missed Exemestane Doses
Week 97 (n=4)
12.3 missed doses
Standard Deviation 13.07
Number of Missed Exemestane Doses
Week 121 (n=4)
6.3 missed doses
Standard Deviation 0.50

SECONDARY outcome

Timeframe: Baseline up to Year 3

Population: Safety analysis set included all participants who had received at least 1 dose of exemestane during the observation period.

Outcome measures

Outcome measures
Measure
Exemestane
n=378 Participants
Participants with 2 to 3 years of initial adjuvant tamoxifen therapy received exemestane (Aromasin) 25 milligram (mg) tablet orally once daily as per local standard of care to complete 5 years of adjuvant hormonal therapy.
Number of Participants With Reasons for Discontinuing Exemestane Therapy
Adverse event
10 participants
Number of Participants With Reasons for Discontinuing Exemestane Therapy
Insufficient clinical response
11 participants
Number of Participants With Reasons for Discontinuing Exemestane Therapy
Did not meet entrance criteria
9 participants
Number of Participants With Reasons for Discontinuing Exemestane Therapy
Lost to follow-up
12 participants
Number of Participants With Reasons for Discontinuing Exemestane Therapy
No longer willing to participate in study
16 participants
Number of Participants With Reasons for Discontinuing Exemestane Therapy
Other unspecified
58 participants
Number of Participants With Reasons for Discontinuing Exemestane Therapy
Protocol violation
33 participants
Number of Participants With Reasons for Discontinuing Exemestane Therapy
Study terminated by sponsor
197 participants
Number of Participants With Reasons for Discontinuing Exemestane Therapy
Withdrawn due to pregnancy
1 participants

SECONDARY outcome

Timeframe: Baseline up to Year 3

Population: FAS included all participants who had received at least 1 dose of exemestane during the observation period.

Outcome measures

Outcome measures
Measure
Exemestane
n=378 Participants
Participants with 2 to 3 years of initial adjuvant tamoxifen therapy received exemestane (Aromasin) 25 milligram (mg) tablet orally once daily as per local standard of care to complete 5 years of adjuvant hormonal therapy.
Number of Participants Who Received Hormonal Therapy or Chemotherapy After Discontinuation of Exemestane Therapy
Received hormonal therapy
4 participants
Number of Participants Who Received Hormonal Therapy or Chemotherapy After Discontinuation of Exemestane Therapy
Received chemotherapy
319 participants
Number of Participants Who Received Hormonal Therapy or Chemotherapy After Discontinuation of Exemestane Therapy
Received both hormonal and chemotherapy
1 participants
Number of Participants Who Received Hormonal Therapy or Chemotherapy After Discontinuation of Exemestane Therapy
No hormonal or chemotherapy received
34 participants
Number of Participants Who Received Hormonal Therapy or Chemotherapy After Discontinuation of Exemestane Therapy
Missing or no response
20 participants

SECONDARY outcome

Timeframe: Baseline up to Year 3

Population: Safety analysis set included all participants who had received at least 1 dose of exemestane during the observation period.

Outcome measures

Outcome measures
Measure
Exemestane
n=378 Participants
Participants with 2 to 3 years of initial adjuvant tamoxifen therapy received exemestane (Aromasin) 25 milligram (mg) tablet orally once daily as per local standard of care to complete 5 years of adjuvant hormonal therapy.
Percentage of Participants Who Discontinued the Exemestane Therapy
91.8 percentage of participants

SECONDARY outcome

Timeframe: Baseline up to Year 3

Population: A subgroup of participants from FAS who had documented recurrence was evaluable for this measure.

Recurrence-free survival defined as the time from study inclusion to the first date of documented recurrence, with events defined as: local recurrence, distant recurrence, new primary breast cancer (includes both ipsilateral and contralateral second primaries), or death due to any cause. New primary cancer at sites other than the breast were not considered as recurrence.

Outcome measures

Outcome measures
Measure
Exemestane
n=14 Participants
Participants with 2 to 3 years of initial adjuvant tamoxifen therapy received exemestane (Aromasin) 25 milligram (mg) tablet orally once daily as per local standard of care to complete 5 years of adjuvant hormonal therapy.
Recurrence-free Survival (RFS)
74.357 weeks
Interval 27.14 to 133.57

SECONDARY outcome

Timeframe: Baseline up to Year 3

Population: Time to disease progression was considered complementary to RFS and hence, was not analyzed.

Time to disease progression was defined as the time from inclusion to first local or distant recurrence at any site.

Outcome measures

Outcome data not reported

Adverse Events

Exemestane

Serious events: 5 serious events
Other events: 5 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Exemestane
n=378 participants at risk
Participants with 2 to 3 years of initial adjuvant tamoxifen therapy received exemestane (Aromasin) 25 milligram (mg) tablet orally once daily as per local standard of care to complete 5 years of adjuvant hormonal therapy.
Cardiac disorders
Atrial fibrillation
0.26%
1/378
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Eye disorders
Cataract
0.26%
1/378
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Eye disorders
Visual acuity reduced
0.26%
1/378
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Gastrointestinal disorders
Intestinal obstruction
0.26%
1/378
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Hepatobiliary disorders
Cholelithiasis
0.26%
1/378
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Infections and infestations
Pyelonephritis acute
0.26%
1/378
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Colorectal cancer
0.26%
1/378
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Meningioma
0.26%
1/378
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Nervous system disorders
Cerebrovascular accident
0.26%
1/378
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Respiratory, thoracic and mediastinal disorders
Asthmatic crisis
0.26%
1/378
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.
Vascular disorders
Hypertensive crisis
0.26%
1/378
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.

Other adverse events

Other adverse events
Measure
Exemestane
n=378 participants at risk
Participants with 2 to 3 years of initial adjuvant tamoxifen therapy received exemestane (Aromasin) 25 milligram (mg) tablet orally once daily as per local standard of care to complete 5 years of adjuvant hormonal therapy.
Musculoskeletal and connective tissue disorders
Arthralgia
1.3%
5/378
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one subject and as nonserious in another subject, or one subject may have experienced both a serious and nonserious event during the study.

Additional Information

Pfizer ClinicalTrials.gov Call Center

Pfizer, Inc.

Phone: 1-800-718-1021

Results disclosure agreements

  • Principal investigator is a sponsor employee Pfizer has the right to review disclosures, requesting a delay of less than 60 days. Investigator will postpone single center publications until after disclosure of pooled data (all sites), less than 12 months from study completion/termination at all participating sites. Investigator may not disclose previously undisclosed confidential information other than study results.
  • Publication restrictions are in place

Restriction type: OTHER