Who are PF-06804103 + Palbociclib +Letrozole's main competitors?

No direct comparators detected in our index.

How often does this brief refresh?

Every 30 minutes from primary sources (FDA, EMA, MHRA, PMDA, ClinicalTrials.gov, USPTO). Subscribe to the RSS feed below for push alerts.

How do I get this as a recurring report?

Subscribe to /feed/ci/pf-06804103-palbociclib-letrozole.xml in any RSS reader (Feedly, Inoreader, NewsBlur). Every regulatory action, trial readout, or patent event lands in your feed automatically.

Last reviewed 2026-05-17 · How we verify

PF-06804103 + Palbociclib +Letrozole — Competitive Intelligence Brief

Name: Drug Landscape Pharmaceutical Database
Creator: Drug Landscape
Published: 2026-01-01
License: https://creativecommons.org/licenses/by/4.0/

PF-06804103 + Palbociclib +Letrozole (pf-06804103-palbociclib-letrozole) competitive landscape: 0 comparators, recent regulatory actions, upcoming PDUFA, patent timeline. Class: Selective estrogen receptor degrader (SERD) + CDK4/6 inhibitor + aromatase inhibitor combination. Area: Oncology.

discontinued Selective estrogen receptor degrader (SERD) + CDK4/6 inhibitor + aromatase inhibitor combination Estrogen receptor alpha (ERα), CDK4/6, aromatase Oncology Live · refreshed every 30 min

Target snapshot

PF-06804103 + Palbociclib +Letrozole (pf-06804103-palbociclib-letrozole) — Pfizer Inc.. Triple-agent therapy combining estrogen receptor degradation, CDK4/6 inhibition, and aromatase inhibition to block estrogen signaling and cell-cycle progression in HR+ breast cancer.

Comparator set

Auto-detected by same drug class / molecular target / therapeutic area, ranked by phase + recency. Override with ?vs=slug1,slug2,….

Drug	Generic	Sponsor	Phase	Class	Target	Approval / PDUFA
PF-06804103 + Palbociclib +Letrozole TARGET	pf-06804103-palbociclib-letrozole	Pfizer Inc.	discontinued	Selective estrogen receptor degrader (SERD) + CDK4/6 inhibitor + aromatase inhibitor combination	Estrogen receptor alpha (ERα), CDK4/6, aromatase

Recent regulatory actions (last 90 days)

No regulatory actions in the last 90 days for this set.

Upcoming PDUFA dates (next 180 days)

No PDUFA dates in the next 180 days for this set.

Patent timeline (forward window)

No upcoming patent expiries for this set.

Sponsor landscape (Selective estrogen receptor degrader (SERD) + CDK4/6 inhibitor + aromatase inhibitor combination class)

Pfizer Inc. · 1 drug in this class

Subscribe to ongoing alerts

Push every new event for this competitive set into your RSS reader, IFTTT/Zapier workflow, or email digest:

Cite this brief

Drug Landscape (2026). PF-06804103 + Palbociclib +Letrozole — Competitive Intelligence Brief. https://druglandscape.com/ci/pf-06804103-palbociclib-letrozole. Accessed 2026-05-17.

Build your own brief

Pick any drug + add comparators:

https://druglandscape.com/ci/{slug} — auto-detected competitors
https://druglandscape.com/ci/{slug}?vs=drug1,drug2,drug3 — explicit comparators
Brand names auto-resolve: /ci/keytruda → 301 → /ci/pembrolizumab