Evidence map›Paper›PMID 29866013›Full record

ArticleCurrent clinical pharmacology2018

Trends of Clinical Trials for Drug Development in Rare Diseases.

Ryuichi Sakate, Akiko Fukagawa, Yuri Takagaki, Hanayuki Okura, Akifumi Matsuyama

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Current clinical pharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.4field-weighted citation impact, top 16% 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

14 citing papers in PubMed, 26 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

5 authors at 1 institution in 1 country.

Ryuichi SakateCenter for Rare Disease Research, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan.
Akiko FukagawaOffice of Policy and Ethics Research, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan.
Yuri TakagakiOffice of Policy and Ethics Research, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan.
Hanayuki OkuraCenter for Rare Disease Research, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan.
Akifumi MatsuyamaCenter for Rare Disease Research, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan.
National Institute of Biomedical Innovation, Health and Nutrition · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDrug development for rare diseases is challenging because it is difficult to obtain relevant data from very few patients. It must be informative to grasp current status of clinical trials for drug development in rare diseases.

objectiveClinical trials in rare diseases are to be outlined and compared among the US, EU and Japan.

methodClinicalTrials.gov (NCT, National Clinical Trial), EU Clinical Trials Register (EUCTR) and the Japan Primary Registries Network (JPRN) were analyzed. Clinical trials involving information on rare diseases and drugs were extracted by text-mining, based on the diseases and drugs derived from Orphanet and DrugBank, respectively.

resultsIn total, 28,526 clinical trials were extracted, which studied 1,535 rare diseases and 1,539 drugs. NCT had the largest number of trials, involving 1,252 diseases and 1,332 drugs. EUCTR and JPRN also had registry-specific diseases (250 and 22, respectively) and drugs (172 and 29, respectively) that should not be missed. Among the 1,535 rare diseases, most diseases were studied in only a limited number of trials; 70% of diseases were studied in fewer than 10 trials, and 28% were studied in only one. Additionally, most studied rare diseases were cancer-related ones.

conclusionThis study has revealed the characteristics of the clinical trials in rare diseases among the US, EU and Japan. The number of trials for rare diseases was limited especially for non-cancerrelated ones. This information could contribute to drug development such as drug-repositioning in rare diseases.

Indexed as

Clinical Trials as TopicDrug DevelopmentEuropean UnionHumansJapanOrphan Drug ProductionRare DiseasesUnited Statesa limited number of trialscancer-related rare diseasesClinicalTrials.govDrugBankdrug repositioningEU Clinical Trials RegisterOrphanetthe Japan Primary Registries Network.

Identifiers

PMID29866013
PMCPMC6327118
OpenAlexW2807290523

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.