Evidence map›Paper›PMID 41473674›Full record

ArticleExperimental and therapeutic medicine2026

Impact of MGMT methylation on overall survival in solid tumors: A systematic review and meta-analysis.

Abdulla Alzibdeh, Ala'a Khanfar, Maysa Al-Hussaini, Ramiz Abuhijlih, Issa Mohamad, Hikmat Abdel-Razeq, Fawzi Abuhijla

Abstract read
In one paragraph

Article in Experimental and therapeutic medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Review
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

7 authors.

Abdulla AlzibdehDepartment of Radiation Oncology, King Hussein Cancer Center, Amman 11941, Jordan.
Ala'a KhanfarDepartment of Radiation Oncology, King Hussein Cancer Center, Amman 11941, Jordan.
Maysa Al-HussainiDepartment of Pathology, King Hussein Cancer Center, Amman 11941, Jordan.
Ramiz AbuhijlihDepartment of Radiation Oncology, King Hussein Cancer Center, Amman 11941, Jordan.
Issa MohamadDepartment of Radiation Oncology, King Hussein Cancer Center, Amman 11941, Jordan.
Hikmat Abdel-RazeqDepartment of Medical Oncology, King Hussein Cancer Center, Amman 11941, Jordan.
Fawzi AbuhijlaDepartment of Radiation Oncology, King Hussein Cancer Center, Amman 11941, Jordan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

O6-methylguanine-DNA methyltransferase (MGMT) serves a crucial role in DNA repair by removing alkyl lesions from the O6 position of guanine, maintaining genomic stability. Loss of MGMT expression, often due to promoter methylation, is linked to enhanced sensitivity to chemotherapy. While MGMT methylation has been observed in various cancers, its impact on overall survival (OS) in solid tumors remains uncertain. According to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, studies were selected from PubMed that examined the impact of MGMT methylation on OS in adult patients with solid tumors. Data were extracted where methylation status was defined, and OS was reported through hazard ratios (HRs) and confidence intervals (CIs) from either univariate or multivariable analyses. R version 4.4.2 and the 'meta' package were employed for the meta-analysis, using both fixed-effects (Mantel-Haenszel method) and random-effects (DerSimonian-Laird method with Hartung-Knapp adjustment) models based on the I

Indexed as

meta-analysisMGMT methylationoverall survivalpersonalized medicineprecision medicineprognostic biomarkersolid tumors

Identifiers

PMID41473674
PMCPMC12746385

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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.