Evidence map›Paper›PMID 34487222›Full record

Trial reportEuropean journal of nutrition2022

Short-term fasting in glioma patients: analysis of diet diaries and metabolic parameters of the ERGO2 trial.

Martin Voss, Katharina J Wenger, Nina von Mettenheim, Jörg Bojunga, Manuela Vetter, Bianca Diehl, Kea Franz, Ruediger Gerlach, Michael W Ronellenfitsch, Patrick N Harter and 4 more

2 registry-linked trialsOpen access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in European journal of nutrition, 2022. 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 31 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 7 pooled it
4.2field-weighted citation impact, top 5% 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.

NCT01754350 nacompletednot on this map

Calorie-restricted, Ketogenic Diet and Transient Fasting vs. Standard Nutrition During Reirradiation for Patients With Recurrent Glioblastoma: the ERGO2 Study

TypeinterventionalSponsorJohann Wolfgang Goethe University HospitalRan2013 to 2019Enrolled50ConditionsRecurrent GlioblastomaArmscalorie-restricted ketogenic diet and transient fasting, standard nutrition
NCT07628647 nanot yet recruitingnot on this mapstarted 2026, after this paper: background citation

Pilot Study of the Living Well With Brain Cancer Intervention

TypeinterventionalSponsorUniversity of Colorado, DenverRan2026 to 2027Enrolled64ConditionsBrain CancerArmsGroup Self-Management Sessions, Educational Materials Only
3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 7 syntheses or guidelines pooled it, 52 citations in OpenAlex.

  1. Pooled it
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  3. Efficacy and safety of ketogenic diet in glioblastoma: an updated systematic review and meta-analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
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  8. Methodology of analysis of cognitive impairment in longitudinal randomized clinical trials in oncology: a scoping review.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2026
    Article
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  15. Charting cancer's course: revealing the role of diet, exercise, and the microbiome in cancer evolution and immunotherapy response.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
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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

14 authors at 2 institutions in 1 country.

Martin VossDr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, Schleusenweg 2-16, 60528, Frankfurt/Main, Germany. martin.voss@kgu.de.ORCID http://orcid.org/0000-0001-8469-8204
Katharina J WengerUniversity Cancer Center Frankfurt (UCT), University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt/Main, Germany.ORCID http://orcid.org/0000-0002-8640-6858
Nina von MettenheimDr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, Schleusenweg 2-16, 60528, Frankfurt/Main, Germany.
Jörg BojungaDepartment of Medicine 1, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt/Main, Germany.
Manuela VetterDr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, Schleusenweg 2-16, 60528, Frankfurt/Main, Germany.
Bianca DiehlDr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, Schleusenweg 2-16, 60528, Frankfurt/Main, Germany.
Kea FranzUniversity Cancer Center Frankfurt (UCT), University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt/Main, Germany.
Ruediger GerlachDepartment of Neurosurgery, HELIOS Hospital Erfurt, Nordhäuser Straße 74, 99089, Erfurt, Germany.
Michael W RonellenfitschDr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, Schleusenweg 2-16, 60528, Frankfurt/Main, Germany.ORCID http://orcid.org/0000-0002-1402-6290
Patrick N HarterUniversity Cancer Center Frankfurt (UCT), University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt/Main, Germany.ORCID http://orcid.org/0000-0001-5530-6910
Elke HattingenUniversity Cancer Center Frankfurt (UCT), University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt/Main, Germany.
Joachim P Steinbach *Dr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, Schleusenweg 2-16, 60528, Frankfurt/Main, Germany.
Claus Rödel *University Cancer Center Frankfurt (UCT), University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt/Main, Germany.
Johannes Rieger *Dr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, Schleusenweg 2-16, 60528, Frankfurt/Main, Germany.
Goethe University Frankfurt · DEHelios Klinikum Erfurt · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe prospective, randomized ERGO2 trial investigated the effect of calorie-restricted ketogenic diet and intermittent fasting (KD-IF) on re-irradiation for recurrent brain tumors. The study did not meet its primary endpoint of improved progression-free survival in comparison to standard diet (SD). We here report the results of the quality of life/neurocognition and a detailed analysis of the diet diaries.

methods50 patients were randomized 1:1 to re-irradiation combined with either SD or KD-IF. The KD-IF schedule included 3 days of ketogenic diet (KD: 21-23 kcal/kg/d, carbohydrate intake limited to 50 g/d), followed by 3 days of fasting and again 3 days of KD. Follow-up included examination of cognition, quality of life and serum samples.

resultsThe 20 patients who completed KD-IF met the prespecified goals for calorie and carbohydrate restriction. Substantial decreases in leptin and insulin and an increase in uric acid were observed. The SD group, of note, had a lower calorie intake than expected (21 kcal/kg/d instead of 30 kcal/kg/d). Neither quality of life nor cognition were affected by the diet. Low glucose emerged as a significant prognostic parameter in a best responder analysis.

conclusionThe strict caloric goals of the ERGO2 trial were tolerated well by patients with recurrent brain cancer. The short diet schedule led to significant metabolic changes with low glucose emerging as a candidate marker of better prognosis. The unexpected lower calorie intake of the control group complicates the interpretation of the results. Clinicaltrials.gov number: NCT01754350; Registration: 21.12.2012.

Indexed as

FastingGliomaHumansNeoplasm Recurrence, LocalProspective StudiesQuality of LifeFastingGlioblastomaGlucoseKetogenic dietLeptinRadiation

Identifiers

PMID34487222
PMCPMC8783850
OpenAlexW3198130268

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.