Evidence map›Paper›PMID 29564383›Full record

ArticleEJNMMI radiopharmacy and chemistry2017

Improved radiolabeling of DOTATOC with trivalent radiometals for clinical application by addition of ethanol.

Elisabeth Eppard, Marylaine Pèrez-Malo, Frank Rösch

Erratum issuedAbstract read
In one paragraph

Article in EJNMMI radiopharmacy and chemistry, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

  1. Article
  2. Article
  3. [Pharmaceutics · 2023
    Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Pharmaceuticals (Basel, Switzerland) · 2021
    Article
  10. Article
  11. Review
  12. Ethanol effects onEJNMMI radiopharmacy and chemistry · 2019
    Article
  13. Article
  14. Erratum: Publisher Correction toEJNMMI radiopharmacy and chemistry · 2018
    Article
  15. Improved Efficacy of Synthesizing *MInorganic chemistry · 2018
    Article
  16. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Elisabeth EppardDepartment of Nuclear Medicine, University Hospital Bonn, Sigmund-Freud-Strasse 25, D-53127 Bonn, Germany.
Marylaine Pèrez-MaloInstitute of Nuclear Chemistry, Johannes Gutenberg-University, Fritz-Strassmann-Weg 2, D-55128 Mainz, Germany.
Frank RöschInstitute of Nuclear Chemistry, Johannes Gutenberg-University, Fritz-Strassmann-Weg 2, D-55128 Mainz, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTypically, metal-based radiopharmaceuticals are synthesized in aqueous solutions with no or low ethanol content. Labeling yields are defined by temperature, period of labeling, amount of precursor, pH etc. As recently observed, radiolabeling yields (RCY) seem to increase in the presence of non-aqueous solvents. Consequently, this effect was investigated systematically using ethanol as non-aqueous solvent (n-as), which is widely utilized in medicine, and DOTATOC as model compound.

methodsTo determine the impact of ethanol on the radiolabeling efficacy, "standard" labeling conditions of

resultsFor increasing amounts of ethanol,

conclusionThere is clear experimental evidence, that adding more than 20 vol% ethanol to the reaction mixtures significantly improve labeling efficacies. This could be demonstrated for

Indexed as

DOTATOCEthanolKitRadiolabelingRadiopharmaceuticals

Identifiers

PMID29564383
PMCPMC5843808

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.