Evidence map›Paper›PMID 34117961›Full record

ArticleEJNMMI radiopharmacy and chemistry2021

GMP production of 6-[

Valdemar L Andersen, Mikkel A Soerensen, Johan Hygum Dam, Niels Langkjaer, Henrik Petersen, Dirk Andreas Bender, Dan Fugloe, Tri Hien Viet Huynh

Open access · goldAbstract read
In one paragraph

Article in EJNMMI radiopharmacy and chemistry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

4 citing papers in PubMed, 13 citations in OpenAlex.

  1. Review
  2. Review
  3. Manufacturing 6-[Organic letters · 2024
    Article
  4. [EJNMMI research · 2023
    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

8 authors at 5 institutions in 1 country.

Valdemar L Andersen *Department of Nuclear Medicine, Copenhagen University Hospital Herlev and Gentofte, Borgmester Ib Juuls vej 31, DK-2730, Herlev, Denmark.
Mikkel A Soerensen *Department of Nuclear Medicine, Copenhagen University Hospital Herlev and Gentofte, Borgmester Ib Juuls vej 31, DK-2730, Herlev, Denmark.
Johan Hygum DamDepartment of Nuclear Medicine, Odense University Hospital, Odense, Denmark.
Niels LangkjaerDepartment of Nuclear Medicine, Odense University Hospital, Odense, Denmark.
Henrik PetersenDepartment of Nuclear Medicine, Odense University Hospital, Odense, Denmark.
Dirk Andreas BenderDepartment of Nuclear Medicine and PET Center, Aarhus University Hospital, Aarhus, Denmark.
Dan FugloeDepartment of Nuclear Medicine, Copenhagen University Hospital Herlev and Gentofte, Borgmester Ib Juuls vej 31, DK-2730, Herlev, Denmark.
Tri Hien Viet HuynhDepartment of Nuclear Medicine, Copenhagen University Hospital Herlev and Gentofte, Borgmester Ib Juuls vej 31, DK-2730, Herlev, Denmark. THUY0011@regionh.dk.ORCID http://orcid.org/0000-0001-5264-4738
Gentofte Hospital · DKUniversity of Southern Denmark · DKAarhus University Hospital · DKHerlev Hospital · DKOdense University Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe radiofluorinated levodopa analogue 6-[

methodsData from four years of [

resultsThe electrophilic substitution route suffers from being demanding in terms of cyclotron operation and maintenance. This challenge, however, was found to be compensated by a production failure rate significantly below that of both nucleophilic approaches; a result of simpler chemistry. The five-step nucleophilic approach employed at HUH produces superior radiochemical yields compared to the three-step approach adopted at OUH but suffers from the need for more comprehensive synthesis equipment given the multi-step nature of the procedure, including HPLC purification. While the procedure at OUH furnishes the lowest radiochemical yield of the synthetic routes considered, it produces the highest molar activity. This is of importance across the clinical applications of the tracer discussed here, including dopamine synthesis in striatum of subjects with schizophrenia and congenital hyperinsulinism in infants.

conclusionFor most sites either of the two nucleophilic substitution strategies should be favored. However, which of the two will depend on whether a given site wishes to optimize the radiochemical yield or the ease of the use.

Indexed as

[18F]FDOPAGMP productionPET/CT imagingRadiosynthesis

Identifiers

PMID34117961
PMCPMC8197687
OpenAlexW3145962652

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.