Informations générales
  • Catégorie de maladie Cancer du sein (BASEC)
  • Study Phase Phase 3 (ICTRP)
  • État du recrutement recrutement temporairement en pause (BASEC/ICTRP)
  • Lieu de l’étude
    Aarau, Bâle, Berne, Chur, Lausanne, Winterthur, Zurich, Autre
    (BASEC)
  • Responsable de l'étude Martina Knecht Maier martina.knechtmaier@pfizer.com (BASEC)
  • Source(s) de données BASEC: Importé de 08.12.2025 ICTRP: Importé de 15.03.2026
  • Date de mise à jour 15.03.2026 02:00
HumRes66607 | SNCTP000006332 | BASEC2024-02577 | NCT06760637

A study to learn more about the investigational drug PF-07220060 in combination with Letrozole in patients over 18 years of age with HR-positive, HER2-negative advanced/metastatic breast cancer who have not received prior systemic cancer therapy for advanced/metastatic disease (FourLight-3)

  • Catégorie de maladie Cancer du sein (BASEC)
  • Study Phase Phase 3 (ICTRP)
  • État du recrutement recrutement temporairement en pause (BASEC/ICTRP)
  • Lieu de l’étude
    Aarau, Bâle, Berne, Chur, Lausanne, Winterthur, Zurich, Autre
    (BASEC)
  • Responsable de l'étude Martina Knecht Maier martina.knechtmaier@pfizer.com (BASEC)
  • Source(s) de données BASEC: Importé de 08.12.2025 ICTRP: Importé de 15.03.2026
  • Date de mise à jour 15.03.2026 02:00

Résumé de l'étude

The aim of this study is to determine the safety and efficacy of PF-07220060 in combination with Letrozole compared to approved treatments (i.e., Palbociclib, Ribociclib, or Abemaciclib in combination with Letrozole) in people with breast cancer: • with HR-positive tumor (breast cancer cells that require estrogen or progesterone to grow) • with HER2-negative tumor (cells that have little or no protein called HER2 on their surface) • with locally advanced cancer (the cancer has spread from its original site to nearby tissue or lymph nodes) or metastatic cancer (spread of cancer to other parts of the body) • who have not received prior systemic cancer treatment for advanced/metastatic disease. Approximately half of the participants will receive PF-07220060 in combination with Letrozole, while the other half will receive the treatment selected by the investigator in combination with Letrozole. The study team will monitor how participants respond to the study treatment during regular visit appointments at the study center.

(BASEC)

Intervention étudiée

Experimental therapy: Arm A

PF-07220060 tablet, taken by mouth, in combination with Letrozole tablet, taken by mouth

 

Active comparator: Arm B

Investigator-selected CDK4/6 inhibitor (tablet/capsule), taken by mouth together with Letrozole tablet

(BASEC)

Maladie en cours d'investigation

Breast cancer

(BASEC)

Critères de participation
• Histological confirmation of breast cancer with evidence of locally advanced or metastatic disease that is not amenable to surgical resection or radiation therapy with curative intent • Documented estrogen receptor (ER) and/or progesterone receptor (PR) positive tumor • Documented HER2-negative tumor • No prior treatment with systemic cancer therapy for locally advanced or metastatic disease • Measurable disease or non-measurable disease that only involves the bones, as defined by RECIST version 1.1 (BASEC)

Critères d'exclusion
• There is a visceral crisis with the risk of immediate life-threatening complications in the short term • Current or previous metastases in the central nervous system • Previous (neo-)adjuvant endocrine therapy (ET) and recurrence during or within 12 months after the last dose of ET • Previous (neo-)adjuvant receipt of CDK4/6i and recurrence during or within 12 months after the last dose of CDK4/6i • Insufficient kidney function, liver dysfunction, or hematological abnormalities (BASEC)

Lieu de l’étude

Aarau, Bâle, Berne, Chur, Lausanne, Winterthur, Zurich, Autre

(BASEC)

Baden, Olten, Liestal, Frauenfeld

(BASEC)

Argentina, Australia, Belgium, Brazil, Bulgaria, Canada, China, Czechia, Denmark, Finland, France, Germany, Greece, Hungary, India, Ireland, Israel, Italy, Japan, Mexico, Netherlands, Poland, Slovakia, South Korea, Spain, Sweden, Switzerland, Taiwan, Turkey (T�rkiye), United Kingdom, United States (ICTRP)

Sponsor

Pfizer Inc. New York USA Pfizer AG Zürich Schweiz

(BASEC)

Contact pour plus d'informations sur l'étude

Personne de contact en Suisse

Martina Knecht Maier

+41 78 615 62 56

martina.knechtmaier@pfizer.com

Pfizer AG

(BASEC)

Informations générales

Pfizer

1-800-718-1021

ClinicalTrials.gov_Inquiries@pfizer.com

(ICTRP)

Nom du comité d'éthique approbateur (pour les études multicentriques, uniquement le comité principal)

Ethikkommission Nordwest- und Zentralschweiz EKNZ

(BASEC)

Date d'approbation du comité d'éthique

20.03.2025

(BASEC)


Identifiant de l'essai ICTRP
NCT06760637 (ICTRP)

Titre officiel (approuvé par le comité d'éthique)
An Interventional, Open-Label, Randomized, Multicenter Phase 3 Study of PF-07220060 Plus Letrozole Compared to CDK4/6 Inhibitor Plus Letrozole in Participants Over 18 Years of Age With Hormone Receptor (HR)-Positive, HER2-Negative Advanced/Metastatic Breast Cancer who Have not Received any Prior Systemic Anticancer Treatment for Advanced/Metastatic Disease (FOURLIGHT-3) (BASEC)

Titre académique
AN INTERVENTIONAL, OPEN-LABEL, RANDOMIZED, MULTICENTER PHASE 3 STUDY OF PF-07220060 PLUS LETROZOLE COMPARED TO CDK4/6 INHIBITOR PLUS LETROZOLE IN PARTICIPANTS OVER 18 YEARS OF AGE WITH HORMONE RECEPTOR (HR)-POSITIVE, HER2-NEGATIVE ADVANCED/METASTATIC BREAST CANCER WHO HAVE NOT RECEIVED ANY PRIOR SYSTEMIC ANTICANCER TREATMENT FOR ADVANCED/METASTATIC DISEASE (FOURLIGHT-3) (ICTRP)

Titre public
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 (ICTRP)

Maladie en cours d'investigation
Breast Cancer (ICTRP)

Intervention étudiée
Drug: PF-07220060Drug: letrozoleDrug: abemaciclibDrug: palbociclibDrug: ribociclib (ICTRP)

Type d'essai
Interventional (ICTRP)

Plan de l'étude
Allocation: Randomized. Intervention model: Parallel Assignment. Primary purpose: Treatment. Masking: None (Open Label). (ICTRP)

Critères d'inclusion/exclusion
Inclusion Criteria:

- Histological confirmation of breast cancer with evidence of locally advanced or
metastatic disease, which is not amenable to surgical resection or radiation therapy
with curative intent.

- Documented estrogen receptor (ER) and/or progesterone receptor (PR)-positive tumor

- Documented HER2-negative tumor

- Previously untreated with any systemic anticancer therapy for their locally advanced
or metastatic disease.

- Measurable disease or non-measurable bone only disease as defined by RECIST version
1.1

Exclusion Criteria:

- In visceral crisis at risk of immediately life-threatening complications in the
short term.

- Current or past history of central nervous system metastases.

- Have received prior (neo)adjuvant endocrine therapy (ET) and had recurrence during
or within 12 months after the last dose of ET.

- Have received prior (neo)adjuvant CDK4/6i and had recurrence during or within 12
months after the last dose of CDK4/6i.

- Inadequate renal function, hepatic dysfunction, or hematologic abnormalities. (ICTRP)

non disponible

Critères d'évaluation principaux et secondaires
Progression Free Survival (PFS) by BICR (ICTRP)

Overall Survival (OS);Progression Free Survival (PFS) by Investigator;OR by BICR and by investigator;Duration of Response (DoR) by BICR and by investigator;Incidence of treatment emergent treatment related adverse events (AE);Incidence of treatment emergent treatment related serious adverse events;Estimated mean change from baseline in EORTC QLQ C30;Estimated mean change from baseline in BPI-SF;Estimated mean change from baseline in EQ-5D-5L;Estimated mean change from baseline in EORTC Breast Cancer Module (BR42);Mean change from baseline of ctDNA (ICTRP)

Date d'enregistrement
11.12.2024 (ICTRP)

Inclusion du premier participant
non disponible

Sponsors secondaires
non disponible

Contacts supplémentaires
Pfizer CT.gov Call CenterPfizer CT.gov Call Center, ClinicalTrials.gov_Inquiries@pfizer.com, 1-800-718-1021, Pfizer (ICTRP)

ID secondaires
2024-512925-95-00, C4391024 (ICTRP)

Résultats-Données individuelles des participants
non disponible

Informations complémentaires sur l'essai
https://clinicaltrials.gov/study/NCT06760637 (ICTRP)

Résultats de l'essai

Résumé des résultats

non disponible

Lien vers les résultats dans le registre primaire

non disponible