CI

At a glance

ClinicalIndex Comparison Record
Phase 1Active· 24 enrolled / 24 target
Drug / intervention
Abemaciclib +7 moredrug
Likely dose
45 mgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03939897
NCT03939897Phase 1ActiveUpdate Overdue (0.3/mo)Completion was 36mo ago

A Randomized Phase I/II Trial of Fulvestrant and Abemaciclib in Combination With Copanlisib (FAC) Versus Fulvestrant and Abemaciclib Alone (FA) for Endocrine-Resistant, Hormone Receptor Positive, HER2 Negative Metastatic Breast Cancer (FAC vs FA)

National Cancer Institute (NCI)·interventional·Posted May 7, 2019·Updated Jun 1, 2026

In Brief

A Phase 1 clinical trial evaluating Abemaciclib, Biopsy Procedure, and 6 other interventions for Anatomic Stage IV Breast Cancer AJCC v8 and 4 related conditions. Active but no longer recruiting, targeting 24 participants across 14 sites.

Signals

Enrollment appears stalled

Detailed Summary

This phase I trial studies the effects (good and bad) of adding copanlisib to the usual therapy of fulvestrant and abemaciclib in treating patients with hormone receptor positive and HER2 negative breast cancer that has spread from where it first started (breast) to other places in the body (metastatic). Some breast cancer cells have receptors for the hormones estrogen or progesterone. These cells are hormone receptor positive and they need estrogen or progesterone to grow. This can affect how the cancer is treated. Hormone therapy using fulvestrant may fight breast cancer by blocking the use of estrogen by the tumor cells. Abemaciclib and copanlisib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Adding copanlisib to the usual therapy of fulvestrant and abemaciclib may work better than giving fulvestrant and abemaciclib alone in treating patients with breast cancer.

Study Details

Timeline

Phase 1Active
2020202120222023202420252026
First PostedMay 7, 2019
Enrollment StartJun 17, 2020
Primary CompletionJun 22, 2023
Study CompletionAug 14, 2026
TodayJul 2, 2026
Enrollment to primary: 3.0 yearsPosted 7.2 years ago

Arms & Interventions

Phase I Part A Dose 1 (copanlisib, abemaciclib, fulvestrant)experimental

Patients receive 45 mg copanlisib hydrochloride IV over 1 hour on days 1 and 15 and 100 mg abemaciclib PO BID on days 2-28 of cycle 1 and on days 1-28 of subsequent cycles. Patients also receive 500 mg fulvestrant IM on days 2 and 16 of cycle 1, and on day 1 of subsequent cycles. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients undergo an ECHO or MUGA scan during screening. Patients also undergo blood sample collection pre-treatment, cycle 1 days 1, 8, 15, and 22, cycle 2 day 1, cycle 4 day 1, cycle 7 day 1, and then every 3 cycles thereafter and at time of progression. Patients undergo tissue biopsy pre-treatment and optionally on cycle 1 day 15 and at the time of progression. Patients also undergo imaging at screening and at the completion of cycle 3, then every 3 cycles thereafter.

Drug: AbemaciclibProcedure: Biopsy ProcedureProcedure: Biospecimen CollectionDrug: Copanlisib HydrochlorideProcedure: Diagnostic Imaging TestingProcedure: Echocardiography TestDrug: FulvestrantProcedure: Multigated Acquisition Scan
Phase I Part A Dose 2 (copanlisib, abemaciclib, fulvestrant)experimental

Patients receive 45 mg copanlisib hydrochloride IV over 1 hour on days 1, 8, and 15 and 150 mg abemaciclib PO twice daily BID for 5 days each week (2 days off). Patients also receive f500 mg fulvestrant IM on days 2 and 16 of cycle 1, and on day 1 of subsequent cycles. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients undergo an ECHO or MUGA scan during screening. Patients also undergo blood sample collection pre-treatment, cycle 1 days 1, 8, 15, and 22, cycle 2 day 1, cycle 4 day 1, cycle 7 day 1, and then every 3 cycles thereafter and at time of progression. Patients undergo tissue biopsy pre-treatment and optionally on cycle 1 day 15 and at the time of progression. Patients also undergo imaging at screening and at the completion of cycle 3, then every 3 cycles thereafter.

Drug: AbemaciclibProcedure: Biopsy ProcedureProcedure: Biospecimen CollectionDrug: Copanlisib HydrochlorideProcedure: Diagnostic Imaging TestingProcedure: Echocardiography TestDrug: FulvestrantProcedure: Multigated Acquisition Scan
Phase I Part B Dose 1b (copanlisib, abemaciclib, fulvestrant)experimental

Patients receive 45 mg copanlisib hydrochloride IV over 1 hour on days 1 and 15 and 100 mg abemaciclib PO twice daily BID for 5 days each week (2 days off). Patients also receive 500 fulvestrant IM on days 2 and 16 of cycle 1, and on day 1 of subsequent cycles. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients undergo an ECHO or MUGA scan during screening. Patients also undergo blood sample collection pre-treatment, cycle 1 days 1, 8, 15, and 22, cycle 2 day 1, cycle 4 day 1, cycle 7 day 1, and then every 3 cycles thereafter and at time of progression. Patients undergo tissue biopsy pre-treatment and optionally on cycle 1 day 15 and at the time of progression. Patients also undergo imaging at screening and at the completion of cycle 3, then every 3 cycles thereafter.

Drug: AbemaciclibProcedure: Biopsy ProcedureProcedure: Biospecimen CollectionDrug: Copanlisib HydrochlorideProcedure: Diagnostic Imaging TestingProcedure: Echocardiography TestDrug: FulvestrantProcedure: Multigated Acquisition Scan
Phase I Part B Dose 2b (copanlisib, abemaciclib, fulvestrant)active_comparator

Patients receive 45 mg copanlisib hydrochloride IV over 1 hour on days 1, 8, and 15 and 100 mg abemaciclib PO twice daily BID for 5 days each week (2 days off). Patients also receive 500 mg fulvestrant IM on days 2 and 16 of cycle 1, and on day 1 of subsequent cycles. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients undergo an ECHO or MUGA scan during screening. Patients also undergo blood sample collection pre-treatment, cycle 1 days 1, 8, 15, and 22, cycle 2 day 1, cycle 4 day 1, cycle 7 day 1, and then every 3 cycles thereafter and at time of progression. Patients undergo tissue biopsy pre-treatment and optionally on cycle 1 day 15 and at the time of progression. Patients also undergo imaging at screening and at the completion of cycle 3, then every 3 cycles thereafter.

Drug: AbemaciclibProcedure: Biopsy ProcedureProcedure: Biospecimen CollectionDrug: Copanlisib HydrochlorideProcedure: Diagnostic Imaging TestingProcedure: Echocardiography TestDrug: FulvestrantProcedure: Multigated Acquisition Scan

Interventions

Abemaciclibdrug

Given PO

Biopsy Procedureprocedure

Undergo tissue biopsy

Biospecimen Collectionprocedure

Undergo blood sample collection

Copanlisib Hydrochloridedrug

Given IV

Diagnostic Imaging Testingprocedure

Undergo imaging

Echocardiography Testprocedure

Undergo ECHO

Fulvestrantdrug

Given IM

Multigated Acquisition Scanprocedure

Undergo MUGA