Evidence map›Paper›PMID 41864163›Full record

Trial reportESMO open2026

Overall survival from the open-label phase II trial of palbociclib in patients with advanced well-differentiated/dedifferentiated liposarcoma.

O O Babatunde, K Seier, G Schwartz, M L Keohan, S P D'Angelo, M M Gounder, P Chi, C R Antonescu, J Landa, L-X Qin and 5 more

Abstract readClinical Trial, Phase II
In one paragraph

Trial report in ESMO open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors.

O O BabatundeSarcoma Medical Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA. Electronic address: babatuo@mskcc.org.
K SeierDepartment of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, USA.
G SchwartzCase Comprehensive Cancer Center, Cleveland, Ohio, USA.
M L KeohanSarcoma Medical Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Medicine, Weill Cornell Medical College, New York, USA.
S P D'AngeloSarcoma Medical Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Medicine, Weill Cornell Medical College, New York, USA.
M M GounderSarcoma Medical Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Medicine, Weill Cornell Medical College, New York, USA.
P ChiSarcoma Medical Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Medicine, Weill Cornell Medical College, New York, USA.
C R AntonescuDepartment of Pathology, Memorial Sloan Kettering Cancer Center, New York, USA.
J LandaDepartment of Radiology, Memorial Sloan Kettering Cancer Center, New York, USA.
L-X QinDepartment of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, USA.
A M CragoDepartment of Surgery, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Surgery, Weill Cornell Medical College, New York, USA.
S SingerDepartment of Surgery, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Surgery, Weill Cornell Medical College, New York, USA.
A KoffProgram in Molecular Biology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, USA.
W D TapSarcoma Medical Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Medicine, Weill Cornell Medical College, New York, USA.
M A DicksonSarcoma Medical Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Medicine, Weill Cornell Medical College, New York, USA.

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Hongbiao Carl Lekaye · 1985 to 2026
$347.4M
NCI NIH HHS P30 CA008748
6 · The paper itself

Abstract

backgroundWell-differentiated (WD) and dedifferentiated (DD) liposarcomas (LPS) are characterized by cyclin-dependent kinase (CDK)4 and mouse double minute 2 homolog (MDM2) amplification. Palbociclib, a selective CDK4/6 inhibitor, demonstrated promising activity in prior phase II trials and is included in the National Comprehensive Cancer Network Compendium for LPS. However, long-term overall survival (OS) data remain limited. PATIENTS AND

methodsPatients with advanced WD/DD LPS were enrolled in two non-randomized phase II trials. Cohort A received palbociclib 200 mg (14 days on, 21-day cycle); cohort B received 125 mg (21 days on, 28-day cycle). Kaplan-Meier methods were used to estimate progression-free survival (PFS) and OS. Baseline factors and subsequent anticancer therapies were evaluated for association with outcomes.

resultsAmong 90 patients, 88 were assessable for PFS. Median follow-up was 3.12 years (cohort A) and 2.59 years (cohort B). Median PFS was 4.2 and 4.1 months, and median OS was 26.0 and 24.2 months in cohorts A and B, respectively. One- and two-year OS rates exceeded 70% and 50%, respectively, across cohorts. Patients with pure WD histology (n = 15) had longer PFS (hazard ratio 0.53, P = 0.037) but no OS difference. Cadherin 18 (CDH18) expression on baseline tumor tissue was associated with improved PFS (P = 0.007) and OS (P = 0.003). After treatment, 39% underwent surgery and 46% received additional systemic therapy.

conclusionsThis study provides the longest prospective OS data for palbociclib in WD/DD LPS. CDK4/6 inhibition remains a relevant treatment option, especially for patients unsuitable for cytotoxic therapy. CDH18 expression was associated with clinical outcomes and represents an exploratory biomarker signal that warrants independent validation in future prospective, biomarker-focused studies.

Indexed as

Antineoplastic AgentsLiposarcomaPiperazinesProtein Kinase InhibitorsPyridinesAdultAgedAged, 80 and overFemaleHumansMaleMiddle AgedProgression-Free SurvivalAntineoplastic AgentspalbociclibPiperazinesProtein Kinase InhibitorsPyridinesbiomarker discoveryCDH18CDK4/6 inhibitionliposarcomaoverall survivalprospective clinical trial

Identifiers

PMID41864163
PMCPMC13022607

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

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.