Pfizer: Phase 3 study closed enrollment, 1035 enrolled (Breast Cancer)
Pfizer: Phase 3 study closed enrollment, 1035 enrolled (Breast Cancer). Its enrollment of 1,035 is top-decile (94th percentile of 8,879 records). Dated 19 days ago, it is in the active follow-up window. Score 75/100. As of 2026-11-04, from ClinicalTrials.gov (U.S. National Library of Medicine) API v2.
Data as of · Compiled by Zalwin from ClinicalTrials.gov (U.S. National Library of Medicine) API v2
enrollment: 1,035 · 94th percentile of 8,879 ClinicalTrialStartPulse records · 12.9x the median
Free preview: all 15 published fields of this record are shown below. Locked: 499 related US ClinicalTrialStartPulse records and the 7-column CSV export.
| Field | Value |
|---|---|
| Sponsor | Pfizer |
| Sponsor type | Industry (pharma, biotech, medtech) |
| Study | Study of PF-07220060 With Letrozole in Adults With HR-positive HER2-negative Breast Cancer Who Have Not Received Anticancer Treatment for Advanced/Metastatic Disease |
| NCT ID | NCT06760637 |
| Phase | Phase 3 |
| Status | active not recruiting |
| Conditions | Breast Cancer |
| Intervention types | drug |
| Target enrollment | 1035 |
| Site countries | United States, Argentina, Australia, Belgium, Brazil, Bulgaria, Canada, China, Czechia, Denmark, Finland, France |
| Posted | 2025-01-07 |
| Planned start | 2025-01-06 |
| Event | Enrollment closed (active, not recruiting) |
| Event date | 2026-10-16 |
| Last update posted | 2026-10-16 |
| enrollment percentile | 94th of 8,879 (median 80, 12.9x median) |
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CSV columns: Sponsor · Phase · Conditions · Enrollment · Countries · Event · Posted · official source URL
- Source agency: ClinicalTrials.gov (U.S. National Library of Medicine) API v2
- Record date: 2026-10-16
- Data refreshed: 2026-11-04
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LIVE PUBLIC DATA Source: ClinicalTrials.gov (U.S. National Library of Medicine) API v2 · Last refreshed: Wed, 04 Nov 2026 06:04:38 GMT
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Peer benchmark and outreach value: Pfizer and 2,512 US peers
- US ClinicalTrialStartPulse records like this one: 2,512
- Pfizer's enrollment: 94th percentile of 8,879 records
- Timing: Medium: dated in the last 30 days
- Estimated pipeline if you contact every US peer: $502,400 (peers × rate × deal size; an estimate from your assumptions, not a forecast)
75 / 100 Score
- Industry sponsor (buys outsourced services).
- Enrollment closed: data management, monitoring and closeout ahead.
- Phase 3: multi-site, larger budget.
- 1035 participants planned.
What is the ClinicalTrialStartPulse record for Pfizer?
Pfizer's Phase 3 study (NCT06760637) in Breast Cancer, first posted 2025-01-07: enrollment closed (active, not recruiting) (2026-10-16), in an update posted 2026-10-16.
How does Pfizer compare to other ClinicalTrialStartPulse records?
This is a top-decile record: its enrollment of 1,035 is 12.9x the median of 80 across 8,879 records. It is 19 days old, still within a typical 45-day follow-up window. Its Score of 75/100 puts it among the stronger signals in this feed.
Pfizer vs. top 3 peers
| Organization | Location | Amount | Percentile | Record date |
|---|---|---|---|---|
| Pfizer | US | 1,035 | 94th | 2026-10-16 |
| Merck Sharp & Dohme LLC | US | 1,104 | 95th | 2026-11-03 |
| Janssen Research & Development, LLC | US | 864 | 93rd | 2026-11-03 |
| Janssen Research & Development, LLC | US | 743 | 92nd | 2026-11-03 |
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