Observational studyBreast cancer research and treatment2024
First-line therapy with palbociclib in patients with advanced HR
Observational study in Breast cancer research and treatment, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04874025 (Observational Analysis of Treatment With Palbociclib in Patients With Locally Advanced and / or Metastatic RH + / HER 2- Breast Cancer in the First Line of Treatment Within Routine Clinical Practice.), which is not on this map. Cited by 8 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Observational Analysis of Treatment With Palbociclib in Patients With Locally Advanced and / or Metastatic RH + / HER 2- Breast Cancer in the First Line of Treatment Within Routine Clinical Practice.
Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.
- Comparative efficacy between real-world and randomized studies of palbociclib+endocrine therapy in HR-positive/HER2-negative metastatic breast cancer: systematic review and meta-analysis.JNCI cancer spectrum · 2025Pooled it
- Real-world data for a CDK4/6 inhibitor, palbociclib, as 1st- or 2nd-line therapy in HR+/HER2- metastatic breast cancer: a multicenter prospective cohort study.Breast cancer research : BCR · 2026Observational
- CDK4/6 inhibition uncovers subtype-specific vulnerabilities and immune-related responses in esophageal squamous cell carcinoma.Cell death & disease · 2026Article
- Review
- CDK4/6 inhibitors for metastatic breast cancer in routine clinical practice in Spain: survey of patterns of use and oncologists' perceptions.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025Article
- Overall survival of palbociclib plus endocrine therapy in Japanese patients with HR+/HER2- advanced breast cancer in the first-or second-line setting: a multicenter observational study (P-BRIDGE study).Breast cancer (Tokyo, Japan) · 2025Observational
- p57International journal of molecular sciences · 2024Article
- CDKN2A somatic copy number amplification in normal tissues surrounding gastric carcinoma reduces cancer metastasis risk in droplet digital PCR analysis.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
20 authors at 18 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo evaluate the efficacy and safety of first-line therapy with palbociclib in a Spanish cohort treated after palbociclib approval.
methodsPALBOSPAIN is an observational, retrospective, multicenter study evaluating real-world patterns and outcomes with 1 L palbociclib in men and women (any menopausal status) with advanced HR
resultsA total of 762 patients were included. The median rw-PFS and OS were 24 months (95% CI 21-27) and 42 months (40-not estimable [NE]) in the whole population, respectively. By cohort, the median rw-PFS and OS were as follows: 28 (95% CI 23-39) and 44 (95% CI 38-NE) months in patients with de novo metastatic disease, 13 (95% CI 11-17) and 36 months (95% CI 31-41) in patients who experienced relapse < 12 months after the end of ET, and 31 months (95% CI 26-37) and not reached (NR) in patients who experienced relapse > 12 months after the end of ET. rw-PFS and OS were longer in patients with oligometastasis and only one metastatic site and those with non-visceral disease. The most frequent hematologic toxicity was neutropenia (72%; grade ≥ 3: 52.5%), and the most common non-hematologic adverse event was asthenia (38%).
conclusionThese findings, consistent with those from clinical trials, support use of palbociclib plus ET as 1 L for advanced BC in the real-world setting, including pre-menopausal women and men. TRIAL REGISTRATION NUMBER: NCT04874025 (PALBOSPAIN). Date of registration: 04/30/2021 retrospectively registered.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.