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A Pre-Surgical PK Study of IM and Intraductally Delivered Fulvestrant

An Open Label, Phase 2 Pharmacokinetic Study of Pre-Surgical Intramuscular and Intraductal Fulvestrant in Women With Invasive Breast Cancer or DCIS Undergoing Mastectomy or Lumpectomy

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02540330
Acronym
007
Enrollment
3
Registered
2015-09-03
Start date
2016-03-31
Completion date
2020-08-13
Last updated
2024-04-03

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

Conditions

Female Breast Carcinoma, Female Ductal Carcinoma In Situ

Brief summary

This is an open-label, non-randomized pharmacokinetic study of fulvestrant in women scheduled for mastectomy or lumpectomy. Eligible subjects will be identified with breast cancer or DCIS. The first subject of each of five groups will receive fulvestrant intramuscularly. The subsequent 5 subjects of each group will receive fulvestrant by intraductal instillation. All subjects will be monitored for systemic and local adverse events during the procedure, and following the procedure until mastectomy or lumpectomy. Subjects that receive fulvestrant will undergo serial blood draws to determine fulvestrant blood concentration levels.

Detailed description

This is an open-label, non-randomized pharmacokinetic study of pre-surgical fulvestrant in women scheduled for mastectomy or lumpectomy. Eligible subjects will be identified upon admission to the institution for surgical management of breast cancer or DCIS, specifically mastectomy or lumpectomy. There will be 5 groups, each consisting of 6 subjects. The first subject of each group will receive fulvestrant administered intramuscularly and the next 5 subjects will receive fulvestrant intraductally. Subjects where at least 1 suitable duct is identified may undergo nipple aspiration in order to facilitate duct identification and intraductal infusion of a fulvestrant accompanied by imaging (saline+ ultrasound). A maximum of 5 ducts will receive intraductal infusion of fulvestrant. Across all ducts, the total dose will not exceed 500 mg (10 mL). All subjects will be monitored for systemic and local adverse events during the procedure, immediately following the procedure, within 30 minutes, 1 hour, 4 hours and by phone following discharge on Days +1 and +2, +7, and pre-operative. Subsequent to mastectomy or lumpectomy, subjects will be assessed for systemic adverse events until discharge. Subjects that receive fulvestrant will undergo serial blood draws to determine fulvestrant blood concentration levels. This study was terminated due to revised commercial analyses including a review of the potential to enroll in a timely manner the planned number of patients. This study was not terminated because of safety or efficacy concerns.

Interventions

DRUGFulvestrant

Sponsors

Atossa Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. Female 2. 18 years of age or older 3. Scheduled to undergo non-nipple sparing mastectomy for Invasive Breast Cancer or DCIS 4. Pathological diagnosis of Invasive Ductal Breast Cancer or Ductal Carcinoma in Situ requiring mastectomy or lumpectomy 5. Estrogen Receptor-positive pathology 6. ECOG performance scale of 0-1 7. Adequate organ function as defined by the following criteria: * Absolute neutrophil count (ANC) ≥ 1500/μl * Platelets ≥ 100,000/μl * Hemoglobin ≥ 9.0 g/dl * Creatinine ≤ 2 times upper limit of normal * Bilirubin ≤ 2 times upper limit of normal * Transaminases (AST/SGOT and ALT/SGPT) ≤ 2.5 times upper limit of normal 8. Able to sign informed consent 9. Willing to use effective contraception for at least 100 days post study drug administration.

Exclusion criteria

1. Concurrent treatment with another anti-estrogen 2. Presence of an active infection requiring systemic therapy 3. The following conditions contra-indicating fulvestrant administration: 1. Subjects with bleeding diatheses, thrombocytopenia or current anticoagulant use (excluding aspirin and anti-inflammatories) 2. Subjects with a known hypersensitivity to fulvestrant or any of its formulation components including castor oil, alcohol, benzyl alcohol, and benzyl benzoate. 3. Severe hepatic impairment. 4. Prior surgery on the ipsilateral breast which interrupts communication of the ductal systems with the nipple 5. Prior radiation to the breast 6. Pregnant or lactating 7. Impaired cardiac function or history of cardiac problems of NYHA Class 111 and IV 8. Poor nutritional state as indicated by a BMI below 20. 9. Presence of serious infection not controlled with systemic therapy 10. History of allergies to Lidocaine or Novocain 11. Concurrent participation in an experimental drug study

Design outcomes

Primary

MeasureTime frameDescription
Safety and Tolerability of Two Delivery MethodsUp to 4 weeksNumber of adverse events per CTCAE v4.0 after treatment with fulvestrant by route of administration

Countries

United States

Participant flow

Participants by arm

ArmCount
Intramuscular Fulvestrant
500mg fulvestrant administered intramuscularly Fulvestrant
2
Intraductal Fulvestrant
up to 500mg fulvestrant administered intraductally Fulvestrant
1
Total3

Baseline characteristics

CharacteristicIntraductal FulvestrantTotalIntramuscular Fulvestrant
Age, Continuous45 years60 years67 years
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants1 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
0 Participants2 Participants2 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants2 Participants2 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants0 Participants
Race (NIH/OMB)
White
0 Participants0 Participants0 Participants
Sex: Female, Male
Female
1 Participants3 Participants2 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 20 / 1
other
Total, other adverse events
1 / 20 / 1
serious
Total, serious adverse events
0 / 20 / 1

Outcome results

Primary

Safety and Tolerability of Two Delivery Methods

Number of adverse events per CTCAE v4.0 after treatment with fulvestrant by route of administration

Time frame: Up to 4 weeks

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Intramuscular RouteSafety and Tolerability of Two Delivery Methods1 Participants
Intraductal RouteSafety and Tolerability of Two Delivery Methods0 Participants

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