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Palbociclib (PD-0332991) Combined With Fulvestrant In Hormone Receptor+ HER2-Negative Metastatic Breast Cancer After Endocrine Failure (PALOMA-3)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT01942135
Recruitment Status : Completed
First Posted : September 13, 2013
Results First Posted : May 23, 2016
Last Update Posted : April 27, 2023
Sponsor:
Collaborator:
AstraZeneca
Information provided by (Responsible Party):
Pfizer

Study Description
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Brief Summary:
The study is a randomized, double blind, placebo controlled, Phase 3 clinical trial with the primary objective of demonstrating the superiority of palbociclib in combination with fulvestrant (Faslodex®) over fulvestrant alone in prolonging PFS in women with HR+, HER2 negative metastatic breast cancer whose disease has progressed after prior endocrine therapy. The safety between the two treatment arms will also be compared. During study treatment, pre- and perimenopausal women must be receiving therapy with the LHRH agonist goserelin (Zoladex® or generic).

Condition or disease Intervention/treatment Phase
Metastatic Breast Cancer Drug: Palbociclib Drug: Fulvestrant Drug: Placebo Phase 3

Study Design
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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 521 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Care Provider, Investigator)
Primary Purpose: Treatment
Official Title: MULTICENTER, RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED, PHASE 3 TRIAL OF FULVESTRANT (FASLODEX (REGISTERED)). WITH OR WITHOUT PD-0332991 (PALBOCICLIB) +/- GOSERELIN IN WOMEN WITH HORMONE RECEPTOR-POSITIVE, HER2-NEGATIVE METASTATIC BREAST CANCER WHOSE DISEASE PROGRESSED AFTER PRIOR ENDOCRINE THERAPY
Actual Study Start Date : September 26, 2013
Actual Primary Completion Date : December 5, 2014
Actual Study Completion Date : September 28, 2022

Resource links provided by the National Library of Medicine


Arms and Interventions
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Arm Intervention/treatment
Experimental: Arm A
Given until objective progression, symptomatic deterioration, unacceptable toxicity, death, or withdrawal of consent, whichever occurs first.
 Drug: Palbociclib
Palbociclib 125 mg/day orally continuously dosed for 3 weeks followed by 1 week off; repeated at each subsequent cycle.

Drug: Fulvestrant
Fulvestrant 500 mg intramuscularly on Days 1 and 15 of Cycle 1, and then on Day 1 of each subsequent 28 day cycle.
Active Comparator: Arm B
Given until objective progression, symptomatic deterioration, unacceptable toxicity, death, or withdrawal of consent, whichever occurs first.
 Drug: Placebo
Placebo orally continuously dosed for 3 weeks followed by 1 week off; repeated at each subsequent cycle.

Drug: Fulvestrant
Fulvestrant 500 mg intramuscularly on Days 1 and 15 of Cycle 1, and then on Day 1 of each subsequent 28 day cycle.


Outcome Measures
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Primary Outcome Measures :
  1. Progression-Free Survival (PFS) as Assessed by the Investigator [ Time Frame: From randomization date to date of first documentation of progression or death (assessed up to 12 months) ]
    PFS is the time from the date of randomization to the date of the first documentation of objective progression of disease (PD)or death due to any cause in absence of documented PD. Participants lacking an evaluation of tumor response after randomization had their PFS time censored on the date of randomization with the duration of a day. Participants with documentation of PD or death after a long interval (2 or more incomplete or non-evaluable assessments) since the last tumor assessment were censored at the time of last objective assessment that did not show PD. The length of PFS was calculated as PFS time (months) =[progression/death date(censor date) - randomization date + 1]/30.4. Progression is defined using Response Evaluation Criteria in Solid Tumors(RECIST v1.1) a 20% increase in the sum of diameters of target lesions and the sum must also demonstrate an absolute increase of at least 5mm or unequivocal progression of existing non-target lesions or the appearance of new lesions.


Secondary Outcome Measures :
  1. Overall Survival (OS) - Number of Participants Who Died [ Time Frame: From randomization until death (up to approximately 36 months) ]
    OS is defined as the time from date of randomization to date of death due to any cause. In the absence of confirmation of death, survival time was censored to last date the participant was known to be alive. For participants lacking survival data beyond the date of their last follow-up, the OS time was censored on the last date they were known to be alive. Participants lacking survival data beyond randomization were to have their OS times be censored at randomization. The length of OS was calculated as OS time (months) = [death date (censor date) - randomization date + 1]/30.4. No inferential statistical analysis were done because of the immaturity of the OS data.

  2. Objective Response (OR) [ Time Frame: From randomization until end of treatment (assessed up to 12 months) ]
    OR is defined as the overall complete response (CR) or partial response (PR) according to the RECIST version 1.1 Objective Response Rate (ORR) is defined as the proportion of participants with CR or PR relative to all randomized participants and randomized participants with measurable disease at baseline. Participants who do not have on-study radiographic tumor re-evaluation, who received anti-tumor treatment other than the study medication prior to reaching a CR or PR, or who died, progressed, or dropped out for any reason prior to reaching a CR or PR were counted as non-responders in the assessment of ORR. Per response evaluation criteria in solid tumors criteria (RECIST v1.1) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), ≥30% decrease in the sum of the longest diameter of target lesions (longest for non-nodal and short axis for nodal target lesions); Overall Response (OR) = CR + PR.

  3. Duration of Response (DR) [ Time Frame: From randomization until end of treatment (assessed up to 12 months) ]
    DR is defined as the time from the first documentation of objective tumor response (CR or PR) to the first documentation of disease progression or to death due to any cause, whichever occurs first. If tumor progression data included more than 1 date, the first date was used. DR was calculated as [the date response ended (ie, date of PD or death) - first CR or PR date + 1)]/30.4. Kaplan-Meier estimate of median of the DR is provided below. No inferential statistical analysis were done for DR. The DR was only calculated for the participants with a CR or PR.

  4. Clinical Benefit Response (CBR) [ Time Frame: From randomization until end of treatment (assessed up to 12 months) ]
    CBR is defined as the overall complete response (CR), partial response (PR) , or stable disease (SD) ≥24 weeks according to the RECIST version 1.1. Clinical Benefit Response Rate (CBRR) is defined as the proportion of participants with CR, PR, or SD ≥24 weeks relative to all randomized participants and randomized participants with measurable disease at baseline. Participants who do not have on-study radiographic tumor re-evaluation, who received antitumor treatment other than the study medication prior to reaching a CR or PR, a best response of SD ≥24 weeks, or who died, progressed, or dropped out for any reason prior to reaching a CR or PR and a best response of SD ≥24 weeks was counted as non-responders in the assessment of CBR. Per RECIST v1.1 for target lesions and assessed by MRI: CR, disappearance of all target lesions; PR, ≥30% decrease in the sum of the longest diameter of target lesions; OR = CR + PR.

  5. Survival Probabilities at Months 12, 24 and 36 [ Time Frame: From randomization until death (assessed up to 36 months) ]
    One-, Two- or Three-year Survival Probability is defined as the probability of survival 1 year, 2 or 3 years after the date of randomization based on the Kaplan-Meier estimate. Survival time was censored to last date the participant is known to be alive.

  6. Observed Plasma Trough Concentration (Ctrough) for Palbociclib [ Time Frame: Cycle 1/Day 15 and Cycle 2/Day 15 ]
    Ctrough for palbociclib (if applicable). The method of dispersion applied here is "percent coefficient of variation" (%CV).

  7. Ctrough for Fulvestrant [ Time Frame: Cycles 2/Day 1 and Cycle 3/Day 1 ]
    Ctrough for Fulvestrant (if applicable). The method of dispersion applied here is "percent coefficient of variation" (%CV).

  8. Ctrough for Goserelin [ Time Frame: Cycles 2/ Day 1 and Cycle 3/ Day 1 ]
    Cmin for goserelin (if applicable). The method of dispersion applied here is "percent coefficient of variation" (%CV).

  9. Change From Baseline Between Treatment Comparison in European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30) Functional Scale Scores [ Time Frame: From Cycle 1 to 14, as of 05 December 2014. ]
    The EORTC-QLQ-C30 is a 30-item questionnaire composed of five multi-item functional subscales (physical, role, emotional, cognitive , and social functioning), three multi-item symptom scales (fatigue, nausea/vomiting, and pain), a global quality of life (QOL) subscale, and six single item symptom scales assessing other cancer-related symptoms (dyspnea, sleep disturbance, appetite loss, constipation, diarrhea, and the financial impact of cancer). The questionnaire employs 28 4-point Likert scales with responses from "not at all" to "very much" and two 7-point Likert scales for global health and overall QOL. Responses to all items are then converted to a 0 to 100 scale. For functional and global QOL scales, higher scores represent a better level of functioning/QOL. For symptom-oriented scales, a higher score represents more severe symptoms. A 10-point or higher change in scores from baseline is considered clinically significant.

  10. Change From Baseline Between Treatment Comparison in EORTC QLQ-C30 Symptom Scale Scores [ Time Frame: From Cycle 1 to 14, as of 05 December 2014. ]
    The EORTC-QLQ-C30 is a 30-item questionnaire composed of five multi-item functional subscales (physical, role, emotional, cognitive , and social functioning), three multi-item symptom scales (fatigue, nausea/vomiting, and pain), a global quality of life (QOL) subscale, and six single item symptom scales assessing other cancer-related symptoms (dyspnea, sleep disturbance, appetite loss, constipation, diarrhea, and the financial impact of cancer). The questionnaire employs 28 4-point Likert scales with responses from "not at all" to "very much" and two 7-point Likert scales for global health and overall QOL. Responses to all items are then converted to a 0 to 100 scale. For functional and global QOL scales, higher scores represent a better level of functioning/QOL. For symptom-oriented scales, a higher score represents more severe symptoms. A 10-point or higher change in scores from baseline is considered clinically significant.

  11. Change From Baseline Between Treatment Comparison in European Organization for Research and Treatment of Cancer Breast Cancer Module (EORTC QLQ BR23) Functional Scale Scores [ Time Frame: From Cycle 1 to 14, as of 05 December 2014. ]
    The EORTC-QLQ-BR23 is a 23-item breast cancer-specific companion module to the EORTC-QLQ-C30 and consists of four functional scales (body image, sexual functioning, sexual enjoyment, future perspective) and four symptom scales (systemic side effects, breast symptoms, arm symptoms, upset by hair loss). QLQ-BR23 questionnaire employs 4-point scales with responses from 'not at all' to 'very much'. All scores are converted to a 0 to 100 scale. For functional scales, higher scores represent a better level of functioning.

  12. Change From Baseline Between Treatment Comparison in EORTC QLQ BR23 Symptom Scale Scores [ Time Frame: From Cycle 1 to 14, as of 05 December 2014. ]
    The EORTC-QLQ-BR23 is a 23-item breast cancer-specific companion module to the EORTC-QLQ-C30 and consists of four functional scales (body image, sexual functioning, sexual enjoyment, future perspective) and four symptom scales (systemic side effects, breast symptoms, arm symptoms, upset by hair loss). QLQ-BR23 questionnaire employs 4-point scales with responses from 'not at all' to 'very much'. All scores are converted to a 0 to 100 scale. For symptom-oriented scales, a higher score represent more severe symptoms.

  13. Change From Baseline Between Treatment Comparison in EuroQoL 5D (EQ-5D)- Health Index Scores [ Time Frame: From Cycle 1 to 14, as of 05 December 2014. ]
    The EuroQol-5D (version 3L) is a brief self-administered, validated instrument consisting of 2 parts. The first part consists of 5 descriptors of current health state (mobility, self care, usual activities, pain/discomfort, and anxiety/ depression); a participant is asked to rate each state on a three level scale (1=no problem, 2=some problem, and 3=extreme problem) with higher levels indicating greater severity/ impairment Published weights are available that allow for the creation of a single summary score called the EQ-5D index, which basically ranges from 0 to 1 with low scores representing a higher level of dysfunction and 1 as perfect health. The second part consists of the EQ-5D general health status as measured by a visual analog scale (EQ-5D VAS). EQ-5D VAS measures the participant's self-rated health status on a scale from 0 (worst imaginable health state) to 100 (best imaginable health state).

  14. Change From Baseline Between Treatment Comparison in EQ-5D Visual Analog Scale (VAS) Scores Scale [ Time Frame: From Cycle 1 to 14, as of 05 December 2014. ]
    The EuroQol-5D (version 3L) is a brief self-administered, validated instrument consisting of 2 parts. The second part consists of the EQ-5D general health status as measured by a visual analog scale (EQ-5D VAS). EQ-5D VAS measures the participant's self-rated health status on a scale from 0 (worst imaginable health state) to 100 (best imaginable health state).

  15. Time to Deterioration (TTD) [ Time Frame: Baseline, Day 1 of Cycles 2 to 4, Day 1 of every alternate cycle after that until the end of treatment ]
    A time to event analysis was pre-specified for pain. An analysis of TTD in pain defined as time between baseline and first occurrence of increase of ≥10 points in pain. Deterioration will be defined increase in score of 10 points or greater from baseline. The Kaplan-Meier estimates of quartiles (time to deterioration) with 95% CI is mentioned below.

  16. Percentage of Participants With Treatment-Emergent Adverse Events (TEAEs; All Causalities) [ Time Frame: From the signing of the informed consent until 28 days after the last dose of study medication up to 14 months ]
    An AE is any untoward medical occurrence in a clinical investigation patient administered a product or medical device; the event need not necessarily have a causal relationship with the treatment or usage. An SAE is any untoward medical occurrence at any dose that results in death; is life-threatening; requires hospitalization; results in persistent or significant disability or in congenital anomaly/birth defect. Severity will be graded by the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE), Version 4.0.


Eligibility Criteria
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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   Female
Gender Based Eligibility:   Yes
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Women 18 years or older with metastatic or locally advanced disease, not amenable to curative therapy
  • Confirmed diagnosis of HR+/HER2- breast cancer
  • Any menopausal status
  • Progressed within 12 months from prior adjuvant or progressed within 1 month from prior advanced/metastatic endocrine breast cancer therapy
  • On an LHRH agonist for at least 28 days, if pre-/peri-menopausal, and willing to switch to goserelin (Zoladex ®) at time of randomization.
  • Measurable disease defined by RECIST version 1.1, or bone-only disease
  • Eastern Cooperative Oncology Group (ECOG) PS 0-1
  • Adequate organ and marrow function, resolution of all toxic effects of prior therapy or surgical procedures
  • Patient must agree to provide tumor tissue from metastatic tissue at baseline

Exclusion Criteria:

  • Prior treatment with any CDK inhibitor, fulvestrant, everolimus, or agent that inhibits the PI3K-mTOR pathway
  • Patients with extensive advanced/metastatic, symptomatic visceral disease, or known uncontrolled or symptomatic CNS metastases
  • Major surgery or any anti-cancer therapy within 2 weeks of randomization
  • Prior stem cell or bone marrow transplantation
  • Use of potent CYP3A4 inhibitors or inducers
Contacts and Locations
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Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01942135


Locations
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Sponsors and Collaborators
Pfizer
AstraZeneca
Investigators
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Study Director: Pfizer CT.gov Call Center Pfizer
More Information
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Additional Information:

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

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Responsible Party: Pfizer
ClinicalTrials.gov Identifier: NCT01942135    
Other Study ID Numbers: A5481023
2013-002580-26 ( EudraCT Number )
First Posted: September 13, 2013    Key Record Dates
Results First Posted: May 23, 2016
Last Update Posted: April 27, 2023
Last Verified: April 2023
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.
URL: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests
Keywords provided by Pfizer:
Palbociclib (PD-0332991)
Fulvestrant
Goserelin
Hormone receptor-+
 HER2-negative
Prior Endocrine treatment
any menopausal status
PALOMA-3
Additional relevant MeSH terms:
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Breast Neoplasms
Neoplasms by Site
Neoplasms
Breast Diseases
Skin Diseases
Fulvestrant
Palbociclib
Antineoplastic Agents, Hormonal
Antineoplastic Agents
 Estrogen Receptor Antagonists
Estrogen Antagonists
Hormone Antagonists
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs
Protein Kinase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action