ArticleTherapeutic advances in medical oncology2023
Matching-adjusted indirect comparison of PFS and OS comparing ribociclib plus letrozole
Article in Therapeutic advances in medical oncology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 10 papers.
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.
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.
A randomized, multicenter, double-blind phase 3 study of pd-0332991 (oral cdk 4/6 inhibitor) plus letrozole versus placebo plus letrozole for the treatment of postmenopausal women with er (+), her2 (-) breast cancer who have not received any prior systemic anti cancer treatment for advanced disease
A Randomized Double-blind, Placebo-controlled Study of LEE011 in Combination With Letrozole for the Treatment of Postmenopausal Women With Hormone Receptor Positive, HER2 Negative, Advanced Breast Cancer Who Received no Prior Therapy for Advanced Disease
Who cites it
10 citing papers in PubMed, 12 citations in OpenAlex.
- Matching-adjusted indirect comparison of tislelizumab plus lenvatinib versus sintilimab plus bevacizumab biosimilar as first-line treatment for unresectable hepatocellular carcinoma.Frontiers in immunology · 2025Trial
- First-Line Palbociclib/Letrozole Versus Ribociclib/Letrozole in Postmenopausal HR-Positive/HER2-Negative Metastatic Breast Cancer: A Retrospective Real-World Study and an Exploratory Composite Clinical-Inflammatory Risk Score.Medicina (Kaunas, Lithuania) · 2026Article
- Ribociclib and Palbociclib Are Safe and Effective for Treating Metastatic Breast Cancer: A Retrospective Study.Cancer reports (Hoboken, N.J.) · 2026Observational
- Investigating Real-World Evidence and Reported Survival Outcomes of CDK4/6 Inhibitors in HR+/HER2- Advanced Breast Cancer.Oncology and therapy · 2026Article
- Review
- Matching-adjusted indirect comparison of ribociclib + nonsteroidal aromatase inhibitor versus abemaciclib + endocrine therapy in hormone receptor-positive/HER2-negative early breast cancer.Journal of comparative effectiveness research · 2025Article
- 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
- Head-to-head comparison of palbociclib and ribociclib in first-line treatment of HR-positive/HER2-negative metastatic breast cancer with real-world data from the OPAL registry.International journal of cancer · 2025Observational
- Article
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 9 institutions in 4 countries.
Funding
Abstract
Background: Current standard-of-care first-line treatment of patients with hormone receptor-positive/human epidermal growth factor receptor 2-negative (HR+/HER2-) advanced breast cancer (ABC) is cyclin-dependent kinase 4/6 inhibitor (CDK4/6i) + endocrine therapy. In the MONALEESA-2 trial, first-line ribociclib + letrozole demonstrated statistically significant overall survival (OS) benefit Objectives: To conduct a matching-adjusted indirect comparison (MAIC) to compare progression-free survival (PFS) and OS of first-line ribociclib + letrozole versus palbociclib + letrozole in postmenopausal patients with HR+/HER2- ABC. Design: Letrozole-anchored MAIC using individual patient data from MONALEESA-2 and published summary data from PALOMA-2. Methods: Using individual data, patients from MONALEESA-2 who matched inclusion criteria from PALOMA-2 were selected, and weighting was conducted to ensure baseline characteristics were similar to those in published aggregated data from PALOMA-2. The Bucher method was used to generate corresponding hazard ratios (HRs). Results: The final effective sample size compared Conclusion: Results of this cross-trial MAIC analysis showed a numerical PFS benefit and significantly greater OS benefit with first-line ribociclib + letrozole Trial registration: NCT01958021; https://www.clinicaltrials.gov/study/NCT01958021 (MONALEESA-2) and NCT01740427; https://clinicaltrials.gov/study/NCT01740427 (PALOMA-2).
Indexed as
Identifiers
What OpenQuestion holds
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.