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A Study to Prevent Rash in People Starting Alpelisib for the Treatment of Breast Cancer

RETENTION: An Open-Label Phase 2 Trial of InteRlEukin (5) InhibiTion for the prEveNTION of Alpelisib Rash in Metastatic PIK3CA-mutant Hormone-Receptor Positive Breast Cancer

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05966584
Enrollment
1
Registered
2023-07-28
Start date
2023-07-06
Completion date
2024-08-02
Last updated
2024-08-29

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

Conditions

Breast Cancer

Keywords

Alpelisib, Benralizumab, Metastatic HR-positive, HER2-negative breast cancer, Rash, 22-276

Brief summary

The researcher are doing this study to find out whether benralizumab is effective at preventing skin rashes caused by alpelisib in people who have metastatic breast cancer. Skin rash is a common side effect of alpelisib. Researchers think adding benralizumab to the standard-of-care hormone treatment and alpelisib may prevent the patient from getting a rash.

Interventions

DRUGBenralizumab

Benralizumab 30mg subcutaneously on day -1.

DRUGfulvestrant or AIs) and PI3K inhibition (alpelisib)

SOC endocrine therapy (fulvestrant or AIs) and PI3K inhibition (alpelisib)

Sponsors

AstraZeneca
CollaboratorINDUSTRY
Novartis Pharmaceuticals
CollaboratorINDUSTRY
Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

A multi-center, open-label, phase 2 trial

Eligibility

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

Inclusion criteria

1. Histologically confirmed metastatic HR-positive, HER2-negative breast cancer. HR positive is defined by ER status \>10% immunohistochemical (IHC) staining of any intensity. 2. Must be scheduled to receive SOC endocrine therapy (alpelisib plus fulvestrant or AIs) 3. Presence of one or more activating PIK3CA mutations in tumor tissue. 4. Measurable disease per RECIST v1.1 OR at least one predominantly lytic bone lesion must be present. 5. Written informed consent provided 6. Female or male ≥18 years of age 7. Eastern Cooperative Oncology Group performance status of 0 or 1. 8. Life expectancy ≥6 months. 9. Adequate organ and marrow function as defined below: * Hemoglobin ≥8.0 g/dL (without blood transfusion within 7 days of laboratory test used to determine eligibility) * Absolute neutrophil count ≥1.0 × 10\^9 /L (without granulocyte colony stimulating factor support within 2 weeks of laboratory test used to determine eligibility) * Platelet count ≥50 × 10\^9 /L (without transfusion within 2 weeks of laboratory test used to determine eligibility) * Total bilirubin (TB) ≤1.0 × institutional upper limit of normal (ULN; Patients with known Gilbert's disease who have TB ≤3 × ULN may be enrolled) * Aspartate transaminase/alanine transaminase ≤2.5 × ULN with normal alkaline phosphatase (≤5 × ULN for patients with liver metastases) OR ≤1.5 × ULN in conjunction with alkaline phosphatase \>2.5 × ULN * Creatinine ≤1.5 mg/dL 10. Able to swallow oral medication. 11. Willing to be randomized to any of the treatment arms and able to comply with the protocol for the duration of the study including undergoing treatment and scheduled visits and examinations. 12. Women must be of postmenopausal status. Postmenopausal status is defined by any one of the following criteria: * Prior bilateral oophorectomy * Age ≥60 years * Age \<60 years and amenorrheic for at least 12 months (spontaneous cessation of menses for 12 consecutive months or more in the absence of chemotherapy, tamoxifen, toremifene, or ovarian suppression) and follicle-stimulating hormone and estradiol levels in the postmenopausal range without an alternative cause.

Exclusion criteria

1. Known hypersensitivity to alpelisib, fulvestrant or AIs, benralizumab, cetirizine, or to any of the excipients of alpelisib, fulvestrant or AIs, benralizumab, or cetirizine. 2. Concurrent malignancy (basal cell carcinoma of the skin, squamous cell carcinoma of the skin, or cervical cancer in situ that have undergone curative intent therapy are allowed) 3. Individuals with impaired decision making capacity. 4. Concurrent use of another investigational drug or device for the rash (i.e., outside of study treatment) during, or within 4 weeks of treatment. 5. Known use of anti-IL-5 agents or other biologics for the treatment of asthma which are known to decrease blood eosinophil levels within the past 12 weeks. 6. Known history of anaphylaxis to benralizumab therapy. 7. A helminthic parasitic infection diagnosed within 24 weeks prior to the first treatment, and assent when applicable, was obtained that had not been treated with, or has failed to respond to, standard of care therapy. 8. Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy. 9. Active infection that would impair the ability of the patient to receive study treatment. 10. Women who are pregnant or breast-feeding. 11. Any condition which, in the investigator's opinion, makes the subject unsuitable for trial participation. 12. Oral corticosteroids at a dose of ≥20mg/day prednisone or equivalent within 14 days expected to continue during alpelisib therapy. 13. More than 2 lines of endocrine-based therapy in the metastatic setting.

Design outcomes

Primary

MeasureTime frame
Proportion of Subjects That Have a Grade ≤1 Rash4 weeks

Countries

United States

Participant flow

Participants by arm

ArmCount
Benralizumab and PI3K Inhibition (Alpelisib)
Patients will receive fulvestrant or AIs and PI3K inhibition (alpelisib) per SOC (fulvestrant on days 1, 15, 29 and monthly thereafter; Ais on a daily continuous basis). Participants will receive one injection of benralizumab 30mg subcutaneously on day -1. Benralizumab: Benralizumab 30mg subcutaneously on day -1. fulvestrant or AIs) and PI3K inhibition (alpelisib): SOC endocrine therapy (fulvestrant or AIs) and PI3K inhibition (alpelisib)
1
Total1

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyLost to Follow-up1

Baseline characteristics

CharacteristicBenralizumab and PI3K Inhibition (Alpelisib)
Age, Continuous70 years
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
1 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
1 Participants
Region of Enrollment
United States
1 Participants
Sex: Female, Male
Female
1 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

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

Outcome results

Primary

Proportion of Subjects That Have a Grade ≤1 Rash

Time frame: 4 weeks

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Benralizumab and PI3K Inhibition (Alpelisib)Proportion of Subjects That Have a Grade ≤1 Rash0 Participants

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