Evidence map›Paper›PMID 27276421›Full record

ArticleBritish journal of clinical pharmacology2016

Effects of renal impairment on the pharmacokinetics of orally administered deferiprone.

Caroline Fradette, Vincent Pichette, Éric Sicard, Anne Stilman, Shalini Jayashankar, Yu Chung Tsang, Michael Spino, Fernando Tricta

Open access · bronzeAbstract readControlled Clinical Trial
In one paragraph

Article in British journal of clinical pharmacology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 2 pooled it
0.6field-weighted citation impact, top 29% 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

8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. [Guidelines for iron chelation therapy in thalassemia in China (2025)].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2025
    Guideline
  3. Trial
  4. Review
  5. Article
  6. Article
  7. Article
  8. 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 3 institutions in 2 countries.

Caroline FradetteApoPharma Inc., 200 Barmac Drive, Toronto, Ontario, M9L 2Z7, Canada.
Vincent PichetteHôpital Maisonneuve-Rosemont, 5415 Assomption Boulevard, Montreal, Quebec, H1T 2M4, Canada.
Éric SicardAlgorithme Pharma, 575 Armand-Frappier Blvd., Laval, Quebec, H7V 4B3, Canada.
Anne StilmanApoPharma Inc., 200 Barmac Drive, Toronto, Ontario, M9L 2Z7, Canada.
Shalini JayashankarApoPharma Inc., 200 Barmac Drive, Toronto, Ontario, M9L 2Z7, Canada.
Yu Chung TsangApoPharma Inc., 200 Barmac Drive, Toronto, Ontario, M9L 2Z7, Canada.
Michael SpinoApoPharma Inc., 200 Barmac Drive, Toronto, Ontario, M9L 2Z7, Canada.
Fernando TrictaApoPharma Inc., 200 Barmac Drive, Toronto, Ontario, M9L 2Z7, Canada. ftricta@apopharma.com.
Muscular Dystrophy Canada · CAArmand Frappier Museum · CAHôpital Maisonneuve-Rosemont · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsIn light of the growing recognition of renal disease in thalassemia, it is important to understand the impact of renal impairment on the pharmacokinetics of iron chelators. This study evaluated the pharmacokinetics and safety of the iron chelator deferiprone (DFP) in subjects with renal impairment in comparison with healthy volunteers (HVs).

methodsThirty-two subjects were categorized into four groups based on degree of renal impairment: none, mild, moderate or severe, as determined by estimated glomerular filtration rate (eGFR). All subjects received a single oral dose of 33 mg kg(-1) DFP, provided serum and urine samples for pharmacokinetic assessment over 24 h and were monitored for safety.

resultsRenal clearance of DFP decreased as renal impairment increased. However, based on Cmax , AUC(0,t) and AUC(0,∞), there were no significant group differences in systemic exposure, because less than 4% of the drug was excreted unchanged in the urine. DFP is extensively metabolized to a renally excreted, pharmacologically inactive metabolite, deferiprone 3-O-glucuronide (DFP-G), which exhibited higher Cmax , AUC(0,t), AUC(0,∞) and longer tmax and t1/2 in the renally impaired groups compared with HVs. The Cmax and AUCs of DFP-G increased as eGFR decreased. Overall, 75%-95% of the dose was retrieved in urine, either as DFP or DFP-G, regardless of severity of renal impairment. With respect to safety, DFP was well tolerated.

conclusionsThese data suggest that no adjustment of the DFP dosage regimen in patients with renal impairment is necessary, as there were no significant changes in the systemic exposure to the drug.

Indexed as

Administration, OralAdultAgedDeferiproneFemaleGlomerular Filtration RateHumansIron Chelating AgentsMaleMiddle AgedPyridonesRenal InsufficiencyDeferiproneIron Chelating AgentsPyridonesdeferipronedeferiprone glucuronideFerriproxpharmacokineticsrenal impairment

Identifiers

PMID27276421
PMCPMC5137824
OpenAlexW2418575726

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.