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NCT05226871Active, not recruitingPhase 2

Study for Participants Continuing From Pfizer-sponsored Palbociclib (a Study Medicine) Studies

A TREATMENT PROTOCOL FOR PARTICIPANTS CONTINUING FROM PFIZER-SPONSORED PALBOCICLIB CLINICAL STUDIES

Source: ClinicalTrials.gov · Last updated 9 Sept 2026

Brief summary (registry, in English)

The purpose of this clinical trial is to provide study medicine(s) and learn about their safety. This study is seeking participants who: * Have benefited from ongoing study treatment as determined by the study doctor in a Pfizer-sponsored palbociclib Parent Study * Must agree to follow the reproductive criteria * Are willing and able to comply with all scheduled visits, treatment plans, and other study procedures * Can give signed informed consent documents Participants in this study will continue to receive treatment as they were in the parent study. The time by which participants will take part in this study is retrospective (after completed parent study). We will examine the experiences of people receiving the study medicine(s). This will help us determine if the study medicine(s) are safe. During this time, the participants will be monitored for the safety of the study medicine(s).

Status (registry)
Active, not recruiting
Phase (registry)
Phase 2
Study type
Interventional
Enrollment
35 (actual)
First submitted
26 Jan 2022
Start date
7 Jul 2022
Primary completion date
31 Dec 2029
Lead sponsor
Pfizer
NCT number
NCT05226871
EudraCT number
2021-005735-22

What you commit to

  • Study type: Interventional · Phase 2
  • Participants enrolled: 35
  • From 7 Jul 2022 to the primary completion date, 31 Dec 2029
  • 23 sites in 7 countries
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Other

  • Any medical reason that, in the opinion of the investigator or sponsor, precludes the participant from inclusion in the study

Who the study is looking for

  • Any participant who is receiving study treatment and deriving clinical benefit as determined by the investigator in a Pfizer-sponsored palbociclib Parent Study
  • Participants must agree to follow the reproductive criteria
  • Participants who are willing and able to comply with all scheduled visits, treatment plans, and other study procedures
  • Capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent document and protocol

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (23)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Cancer Hospital Chinese Academy of Medical Science
Coordinator of this site? Confirm its status
BeijingChinaUnknown status
Beijing Cancer Hospital
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BeijingChinaUnknown status
The First Hospital of Jilin University
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ChangchunChinaUnknown status
Sun Yat Sen Memorial Hospital of Sun Yat sen University
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GuangzhouChinaUnknown status
Harbin Medical University Cancer Hospital
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HarbinChinaUnknown status
The First Affiliated Hospital of Anhui Medical University
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HefeiChinaUnknown status
Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
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ShanghaiChinaUnknown status
The First Hospital of China Medical University
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ShenyangChinaUnknown status
Liaoning Cancer Hospital and Institute
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ShenyangChinaUnknown status
Hubei Cancer Hospital
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WuhanChinaUnknown status
Henan Cancer Hospital
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ZhengzhouChinaUnknown status
National Cancer Center
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Goyang-siSouth KoreaUnknown status
Samsung Medical Center
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SeoulSouth KoreaUnknown status
Seoul National University Hospital
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SeoulSouth KoreaUnknown status
Hospital Universitario Dr. Jose Eleuterio González
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MonterreyMexicoUnknown status
Department of Medicine, Faculty of Medicine Siriraj Hospital
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BangkokThailandUnknown status
Faculty of Medicine Ramathibodi Hospital, Mahidol University
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RatchathewiThailandUnknown status
National Cheng Kung University Hospital
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TainanTaiwanUnknown status
MacKay Memorial Hospital
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TaipeiTaiwanUnknown status
Regional Municipal Non-profit Enterprise "Bukovinian Clinical Oncology Center"
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ChernivtsiUkraineUnknown status
Municipal Non-profit Enterprise "City Clinical Hospital #4" of Dnipro City Council
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DniproUkraineUnknown status
Municipal non-profit enterprise Regional Clinical Hospital of Ivano-Frankivsk Regional Council
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Ivano-FrankivskUkraineUnknown status
UCSF Helen Diller Comprehensive Cancer Center at Mission Bay
Coordinator of this site? Confirm its status
San FranciscoUnited StatesUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.