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Terminated No phase listed Observational Results available

HR+/ HER2- Advanced/ Metastatic Breast Cancer Real World Treatment Patterns and Outcomes

ClinicalTrials.gov ID: NCT04396626

Public ClinicalTrials.gov record NCT04396626. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 4, 2026, 6:59 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Patient Characteristics, Treatment Patterns, and Clinical Outcomes in Patients Diagnosed With HR+/HER2- Advanced/Metastatic Breast Cancer Receiving CDK4/6i + Aromatase Inhibitor (AI) Combination Therapy as Initial Endocrine-based Treatment

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This is a retrospective, observational study that will document the treatment patterns and clinical outcomes of patients diagnosed with HR+/HER2- A/MBC who received CDK4/6i combination therapy with aromatase inhibitors (AI) as the initial endocrine-based therapy in the A/MBC setting.

Study identification

NCT ID
NCT04396626
Recruitment status
Terminated
Study type
Observational
Phase
Not listed
Lead sponsor
Pfizer
Industry
Enrollment
975 participants

Conditions and interventions

Conditions

Interventions

Not listed

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 17, 2019
Primary completion
May 30, 2020
Completion
May 30, 2020
Last update posted
Apr 26, 2023

2019 – 2020

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Pfizer United States New York New York 10017

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04396626, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Apr 26, 2023 · Synced Sep 4, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04396626 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →