Evidence map›Paper›PMID 34784012›Full record

ArticleClinical drug investigation2021

An Open-Label Study of the Pharmacokinetics and Tolerability of Once-a-Day Fentanyl Citrate Patch in Japanese Pediatric and Adolescent Patients with Cancer Pain.

Eiso Hiyama, Shigeki Yamaguchi, Koji Okawa, Fumitaka Hashimoto, Kuniaki Otaka, Takaaki Terahara

Abstract read
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Article in Clinical drug investigation, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
1.0field-weighted citation impact, top 21% 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

2 citing papers in PubMed, 3 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

6 authors at 3 institutions in 1 country.

Eiso HiyamaNatural Science Center for Basic Research and Development, Hiroshima University, Hiroshima, Japan.
Shigeki YamaguchiDepartment of Anesthesia and Pain Medicine, Dokkyo Medical University School of Medicine, Tochigi, Japan.
Koji OkawaHisamitsu Pharmaceutical Co., Inc., 2-4-1, Marunouchi, Chiyoda-ku, Tokyo, 100-6330, Japan.
Fumitaka HashimotoHisamitsu Pharmaceutical Co., Inc., 2-4-1, Marunouchi, Chiyoda-ku, Tokyo, 100-6330, Japan. Fumitaka_Hashimoto@hisamitsu.co.jp.
Kuniaki OtakaHisamitsu Pharmaceutical Co., Inc., 2-4-1, Marunouchi, Chiyoda-ku, Tokyo, 100-6330, Japan.
Takaaki TeraharaHisamitsu Pharmaceutical Co., Inc., 2-4-1, Marunouchi, Chiyoda-ku, Tokyo, 100-6330, Japan.
Hisamitsu Pharmaceutical (Japan) · JPDokkyo Medical University · JPHiroshima University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTransdermal fentanyl is not yet approved for pediatric and adolescent use in Japan.

objectiveSerum fentanyl concentration and the safety and efficacy of once-a-day fentanyl citrate patch were investigated in pediatric and adolescent patients with cancer pain.

methodsIn this open-label, uncontrolled study, cancer patients aged 2-19 years being treated with strong opioid analgesics were switched to fentanyl citrate patch for 2 weeks. Serum fentanyl concentration was measured at steady state, and severity of pain was evaluated.

resultsEleven patients (four patients aged 2-5 years and seven patients aged 6-19 years) were enrolled. No patient received a dose exceeding 2 mg. Mean serum fentanyl concentrations after administration of 0.5 mg, 1 mg, and 2 mg were 144 pg/mL (n = 4), 277 pg/mL (n = 3), and 2070 pg/mL (n = 4), respectively. All patients were included in the efficacy and safety analysis, but one patient was excluded from the pharmacokinetic analysis because blood was sampled on the day after blood transfusion. A subgroup analysis showed that the mean serum fentanyl concentration tended to be higher in pre-school patients (aged 2-5 years) than in school-aged and adolescent patients (aged 6-19 years) and than in reports of adult patients (aged 20 years and above) who received the same dose. No respiratory adverse events were observed, and pain was well controlled.

conclusionFentanyl citrate patch tended to result in a higher serum fentanyl concentration in pre-school patients than in school-aged, adolescent, and adult patients who received the same dose. The patch provided adequate pain control, was well tolerated, and did not cause respiratory adverse events. TRIAL REGISTRATION NUMBER: JPRN-JapicCTI-183909.

Indexed as

Cancer PainFentanylNeoplasmsAdministration, CutaneousAdolescentAnalgesics, OpioidChildChild, PreschoolHumansJapanYoung AdultAnalgesics, OpioidFentanyl

Identifiers

PMID34784012
OpenAlexW3213344593

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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.