Evidence map›Paper›PMID 35239008›Full record

SynthesisSupportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer2022

Cancer-related fatigue in patients treated with mistletoe extracts: a systematic review and meta-analysis.

Florian Pelzer, Martin Loef, David D Martin, Stephan Baumgartner

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 3 pooled it
2.5field-weighted citation impact, top 10% 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

17 citing papers in PubMed, 3 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Systematic analysis of mistletoe prescriptions in clinical studies.Journal of cancer research and clinical oncology · 2023
    Pooled it
  3. Pooled it
  4. Article
  5. Review
  6. Article
  7. Article
  8. Mistletoe in Cancer Cell Biology: Recent Advances.Current issues in molecular biology · 2025
    Review
  9. [Complementary and integrative medicine in cancer-related fatigue].Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz · 2024
    Review
  10. [Rehabilitative strategies in cancer-related fatigue].Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz · 2024
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Management of Fatigue in Patients with Advanced Cancer.Current treatment options in oncology · 2023
    Review
  17. Article
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

4 authors at 2 institutions in 2 countries.

Florian PelzerInstitute of Integrative Medicine, Witten/Herdecke University, Witten, Germany. florian.pelzer@uni-wh.de.ORCID http://orcid.org/0000-0002-8169-4539
Martin LoefCHS Institut, Berlin, Germany.
David D MartinInstitute of Integrative Medicine, Witten/Herdecke University, Witten, Germany.
Stephan BaumgartnerInstitute of Integrative Medicine, Witten/Herdecke University, Witten, Germany.
Witten/Herdecke University · DEIGES Institut · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeCancer-related fatigue remains one of the most prevalent and distressing symptoms experienced by cancer patients. Effective treatments for cancer-related fatigue are needed. The objective of this meta-analysis is to determine the impact of mistletoe extracts as a pharmacological treatment for the management of cancer-related fatigue.

methodsWe included randomized clinical trials (RCTs) and non-randomized studies of interventions (NRSIs) in cancer patients. Inclusion criteria were cancer-related fatigue severity or prevalence as an outcome and testing of mistletoe extracts compared to control groups. We searched Medline (EuropePMC), Embase, the Cochrane Central Register of Controlled Trials, Clinicaltrials.gov, and opengrey.org through October 2020. We assessed the risk of bias using the Cochrane risk of bias tools for RCTs and NRSIs and conducted a meta-analysis.

resultsWe performed one meta-analysis with 12 RCTs, including 1494 participants, and one meta-analysis with seven retrospective NRSIs, including 2668 participants. Heterogeneity between the studies was high in both meta-analyses. Most studies had a high risk of bias. A random-effects model showed for RCTs a standardized mean difference of -0.48 (95% confidence interval -0.82 to -0.14; p = 0.006) and for NRSIs an odds ratio of 0.36 (95% confidence interval 0.20 to 0.66; p = 0.0008).

conclusionTreatment with mistletoe extracts shows a moderate effect on cancer-related fatigue of similar size to physical activity. These results need to be confirmed by more placebo-controlled trials. Future trials should investigate different treatment durations and their effect on cancer-related fatigue in post-treatment cancer survivors.

trial registrationThis meta-analysis has been registered under the PROSPERO registration number CRD42020191967 on October 7, 2020.

Indexed as

MistletoeNeoplasmsFatigueHumansPlant ExtractsTreatment OutcomePlant ExtractsCancerCancer-related fatigueMeta-analysisMistletoe extractQuality of lifeViscum album

Identifiers

PMID35239008
PMCPMC9213316
OpenAlexW4214905930

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.