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Clinical trial · no report yet · Phase 2

FOURLIGHT-1

A Study to Learn About the Study Medicine Called PF-07220060 in Combination With Fulvestrant in People With HR-positive, HER2-negative Advanced or Metastatic Breast Cancer Who Progressed After a Prior Line of Treatment

We haven't built a report for this trial yet. This page shows the registry record and the public commentary we found that names the trial. A report reads that commentary and sets out what clinicians said about the trial, each point linked to its source. How reports are made.

Preliminary discovery

Commentary in our index that names this trial so far

Podcasts, YouTube videos and X posts we have indexed. A report screens them, searches for more and cites what clinicians said when it is built, so final coverage is set at build.

ChannelFound
X threads11

The trial

ClinicalTrials.gov
Official title
AN INTERVENTIONAL, OPEN-LABEL, RANDOMIZED, MULTICENTER PHASE 2 STUDY OF PF-07220060 PLUS FULVESTRANT COMPARED TO INVESTIGATOR'S CHOICE OF THERAPY IN PARTICIPANTS AT LEAST 18 YEARS OF AGE WITH HORMONE RECEPTOR-POSITIVE, HER2-NEGATIVE ADVANCED/METASTATIC BREAST CANCER WHOSE DISEASE PROGRESSED AFTER PRIOR CDK 4/6 INHIBITOR-BASED THERAPY (FOURLIGHT-1)
Phase
Phase 2
Status
Active, not recruiting
Conditions
Advanced or Metastatic Breast Cancer
Interventions
PF-07220060 CDK4 inhibitor; Fulvestrant; Everolimus; Exemestane
Arms
  • Arm A · Experimental
  • Arm B · Active comparator
Enrollment
333
Primary outcomes
  • Progression-Free Survival (PFS) progression, as determined by investigator per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1
Sponsor
Pfizer
Start
Jan 9, 2024
Primary completion
Jan 12, 2026
Results posted
No
Registry record
NCT06105632 · updated Aug 20, 2026