Evidence map›Paper›PMID 42426557›Full record

SynthesisThe oncologist2026

Anti-Human Epidermal Growth Factor Receptor 2 therapies in metastatic colorectal cancer: a systematic review and meta-analysis.

Simone Rota, Paola Di Nardo, Emma Zottarelli, Fabiola Giudici, Riccardo Vida, Miriam Zilli, Marco de Scordilli, Luisa Foltran, Arianna Fumagalli, Michela Guardascione and 2 more

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in The oncologist, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

12 authors.

Simone RotaDepartment of Medical Oncology, CRO di Aviano-National Cancer Institute, IRCCS, Aviano, 33081, Italy.ORCID 0009-0004-3144-4672
Paola Di NardoDepartment of Medical Oncology, CRO di Aviano-National Cancer Institute, IRCCS, Aviano, 33081, Italy.ORCID 0000-0002-8918-1201
Emma ZottarelliDepartment of Medical Oncology, CRO di Aviano-National Cancer Institute, IRCCS, Aviano, 33081, Italy.
Fabiola GiudiciUnit of Cancer Epidemiology, CRO di Aviano-National Cancer Institute, IRCCS, Aviano, 33081, Italy.
Riccardo VidaDepartment of Medical Oncology, CRO di Aviano-National Cancer Institute, IRCCS, Aviano, 33081, Italy.
Miriam ZilliDepartment of Medical Oncology, CRO di Aviano-National Cancer Institute, IRCCS, Aviano, 33081, Italy.
Marco de ScordilliDepartment of Medical Oncology, CRO di Aviano-National Cancer Institute, IRCCS, Aviano, 33081, Italy.
Luisa FoltranDepartment of Medical Oncology, CRO di Aviano-National Cancer Institute, IRCCS, Aviano, 33081, Italy.
Arianna FumagalliDepartment of Medical Oncology, CRO di Aviano-National Cancer Institute, IRCCS, Aviano, 33081, Italy.
Michela GuardascioneDepartment of Medical Oncology, CRO di Aviano-National Cancer Institute, IRCCS, Aviano, 33081, Italy.
Elena OngaroDepartment of Medical Oncology, CRO di Aviano-National Cancer Institute, IRCCS, Aviano, 33081, Italy.ORCID 0000-0003-0548-7092
Fabio PuglisiDepartment of Medical Oncology, CRO di Aviano-National Cancer Institute, IRCCS, Aviano, 33081, Italy.

Funding

Italian Ministry of Health-Ricerca Corrente
6 · The paper itself

Abstract

backgroundHER2 amplification identifies a subgroup of colorectal cancer with poorer prognosis and resistance to anti-EGFR therapy. We conducted a systematic review and a meta-analysis of available data on anti-HER2 treatments (HER2Tx) in mCRC patients (pts).

methodsA systematic literature search was performed, encompassing phase II/III clinical trials (CTs) investigating HER2Tx in HER2-overexpressed mCRC. CTs reporting HER2Tx plus chemotherapy were excluded. Primary endpoints were objective response rate (ORR) and disease control rate (DCR). Fixed and random-effect models were applied according to heterogeneity assessed through I 2 statistics. Progression-free survival (PFS) and overall survival (OS) were compared descriptively and pooled using the weighted median of medians (WM) with approximated 95% CIs. Subgroup analyses by HER2Tx were carried out.

resultsThe analysis included 10 CTs evaluating Trastuzumab-Pertuzumab (T + P, 5 CTs,), Trastuzumab Deruxtecan (T-DXd, 2 CTs), Trastuzumab-Lapatinib (T + L, 1 CT), Pertuzumab-TDM1 (P+TDM1, 1 CT), and Trastuzumab-Tucatinib (T-Tu, 1 CT), for a total of 467 pts. The pooled ORR was 33.7% (29.6%-38.1%), and the pooled DCR was 68.5% (58.1%-77.4%). The WM OS was 13.4 months (10-24.1) and WM PFS was 5.5 months (4.1-6.9). The T-DX and T-Tu groups showed higher ORR and DCR (38% and 39% respectively, 85.1% and 73.2% respectively) compared to the T + P group (ORR, 30%; DCR, 52.6%).

conclusionsHER2Tx demonstrated efficacy in pretreated CRC pts, exhibiting good DCR and ORR alongside promising PFS and OS. T-DXd and T-Tu appear to outperform T + P; however, further studies are needed.

Indexed as

Antineoplastic Combined Chemotherapy ProtocolsColorectal NeoplasmsErb-b2 Receptor Tyrosine KinasesAntibodies, Monoclonal, HumanizedCamptothecinHumansImmunoconjugatesNeoplasm MetastasisTrastuzumabAntibodies, Monoclonal, HumanizedCamptothecinERBB2 protein, humanErb-b2 Receptor Tyrosine KinasesImmunoconjugatespertuzumabTrastuzumabtrastuzumab deruxtecancolorectal cancerHER2HER2 therapiesmetastatic

Identifiers

PMID42426557
PMCPMC13475379

What OpenQuestion holds

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Registered trials

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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.