Evidence map›Paper›PMID 30112328›Full record

ArticleSouth Asian journal of cancer

Effect of valproic acid on survival in glioblastoma: A prospective single-arm study.

Deepthi Valiyaveettil, Monica Malik, Deepa M Joseph, Syed Fayaz Ahmed, Syed Akram Kothwal, M Vijayasaradhi

Open access · diamondAbstract read
In one paragraph

Article in South Asian journal of cancer. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.7field-weighted citation impact, top 28% of its field
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

12 citing papers in PubMed, 19 citations in OpenAlex.

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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

6 authors at 1 institution in 1 country.

Deepthi ValiyaveettilDepartment of Radiation Oncology, Nizam's Institute of Medical Sciences, Hyderabad, Telangana, India.
Monica MalikDepartment of Radiation Oncology, Nizam's Institute of Medical Sciences, Hyderabad, Telangana, India.
Deepa M JosephDepartment of Radiation Oncology, Nizam's Institute of Medical Sciences, Hyderabad, Telangana, India.
Syed Fayaz AhmedDepartment of Radiation Oncology, Nizam's Institute of Medical Sciences, Hyderabad, Telangana, India.
Syed Akram KothwalDepartment of Radiation Oncology, Nizam's Institute of Medical Sciences, Hyderabad, Telangana, India.
M VijayasaradhiDepartment of Neurosurgery, Nizam's Institute of Medical Sciences, Hyderabad, Telangana, India.
Nizam's Institute of Medical Sciences · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRetrospective evidence suggests that valproic acid (VPA), an antiepileptic drug, is associated with improved outcomes in glioblastoma. The exact mechanism of interaction of VPA with radiation and temozolomide (TMZ) is still unclear. Laboratory studies show that VPA can enhance tumor cell kill while at the same time protect the normal neural tissue. The aim of this study was to prospectively evaluate the benefit of VPA on outcomes in glioblastoma. MATERIALS AND

methodsIn this single-arm prospective study, patients of glioblastoma were started on seizure prophylaxis with VPA (15-20 mg/kg/day) following maximal safe resection. All patients were treated with chemoradiation to a dose of 60 Gy in 30 fractions with concurrent TMZ followed by adjuvant TMZ for 6 cycles. VPA was continued during adjuvant treatment and follow-up. Survival analysis was done using Kaplan-Meier analysis.

resultsTwenty patients were enrolled in the study. Median age was 47 years. M:F ratio was 3:1. Treatment was well tolerated with no grade 3/4 adverse events. 8/20 patients experience seizure episodes during treatment and/or follow-up which needed additional antiepileptic drugs for control. Median progression-free survival (PFS) and overall survival (OS) were 10 months and 16 months, respectively. Younger patients (age ≤45 years) showed a significantly better OS (25 months) versus older patients (8 months) (

conclusionsIncidence of seizures on VPA prophylaxis was 40%. Median PFS and OS were comparable to historical controls. There was no significant treatment-related toxicity. The results need validation in larger prospective randomized studies.

Indexed as

Chemoradiationglioblastomasurvivalvalproic acid

Identifiers

PMID30112328
PMCPMC6069328
OpenAlexW2884979982

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.