Evidence map›Paper›PMID 22506503›Full record

ArticleAlimentary pharmacology & therapeutics2012

Renal tubular dysfunction during long-term adefovir or tenofovir therapy in chronic hepatitis B.

N Gara, X Zhao, M T Collins, W H Chong, D E Kleiner, T Jake Liang, M G Ghany, J H Hoofnagle

Registry-linked trialAbstract read
In one paragraph

Article in Alimentary pharmacology & therapeutics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02774837 (Open Label Study of Nucleus), which is not on this map. Cited by 63 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 1 pooled it
10.3field-weighted citation impact, top 1% 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.

NCT02774837 phase4unknown statusnot on this mapstarted 2016, after this paper: background citation

Open Label Study of Nucleus(t)Ide Treated Patients Randomised to Tenofovir, or Tenofovir + Telbivudine

TypeinterventionalSponsorSeng Gee LimRan2016 to 2020Enrolled146ConditionsChronic Hepatitis BArmsTenofovir disoproxil, Telbivudine
3 · Its place in the literature

Who cites it

63 citing papers in PubMed, 1 synthesis or guideline pooled it, 148 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Pradefovir Treatment in Patients With Chronic Hepatitis B: Week 24 Results From a Multicenter, Double-Blind, Randomized, Noninferiority, Phase 2 Trial.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2022
    Trial
  5. Trial
  6. Trial
  7. Trial
  8. Article
  9. Observational
  10. Article
  11. Article
  12. Article
  13. Vitamin C Urinary Loss and Deficiency in Human Immunodeficiency Virus (HIV): Cross-sectional Study of Vitamin C Renal Leak in Women With HIV.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2023
    Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. [Brief introduction of "Treatment algorithm for managing chronic hepatitis B virus infection in the United States: 2021 update"].Zhonghua gan zang bing za zhi = Zhonghua ganzangbing zazhi = Chinese journal of hepatology · 2022
    Article
  20. Article

3 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

N GaraLiver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA. naveen.gara@nih.gov
X Zhao
M T Collins
W H Chong
D E Kleiner
T Jake Liang
M G Ghany
J H Hoofnagle
National Institute of Diabetes and Digestive and Kidney Diseases · USNational Institutes of Health · USNational Institute of Dental and Craniofacial Research · US

Funding

Histology Core LaboratoryZICBC010687 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI CHINQUEE, JOSEPH · 2009 to 2025
$35.1M
Skeletal Disorders and Mineral Homeostasis SectionZIADE000649 · NIDCR · NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH · PI COLLINS, MICHAEL · 2009 to 2025
$32.8M
Natural History, Therapy and Pathogenesis of Chronic Viral Hepatitis BZIADK054517 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI GHANY, MARC · 2009 to 2025
$9.6M
Intramural NIH HHS ZIA DE000649
6 · The paper itself

Abstract

backgroundAdefovir and tenofovir are nucleotide analogues used as long-term therapy of chronic hepatitis B. Side effects are few, but prolonged and high-dose therapy has been associated with proximal renal tubular dysfunction (RTD).

aimTo assess the incidence of RTD during long-term nucleotide therapy of chronic hepatitis B.

methodsA total of 51 patients being treated at the Clinical Center, National Institutes of Health were studied. Diagnosis of RTD required de novo appearance of at least three of five features: hypophosphataemia, hypouricaemia, serum creatinine elevation, proteinuria or glucosuria.

resultsAmong 51 patients treated for 1-10 (mean 7.4) years with adefovir (n = 42), tenofovir (n = 4) or adefovir followed by tenofovir (n = 5), 7 (14%) developed RTD. Time to onset ranged from 22 to 94 (mean 49) months with an estimated 10-year cumulative rate of 15%. All seven had low urinary percent maximal tubular reabsorption of phosphate (<82%). Patients with RTD were older (58 vs. 44 years; P = 0.01) and had lower baseline glomerular filtration rates (82 vs. 97 cc/min; P = 0.08) compared to those without; but did not differ in other features. Six patients with RTD were switched to entecavir, all subsequently had improvements in serum phosphate (2.0-3.0 mg/dL), creatinine (1.6-1.1 mg/dL), uric acid (2.7-3.8 mg/dL) and proteinuria.

conclusionsRenal tubular dysfunction develops in 15% of patients treated with adefovir or tenofovir for 2-9 years and is partially reversible with change to other antivirals. Monitoring for serum phosphate, creatinine and urinalysis is prudent during long-term adefovir and tenofovir therapy.

Indexed as

AdenineAdultAgedAntiviral AgentsBiomarkersCreatinineFemaleGlomerular Filtration RateHepatitis B, ChronicHumansKidney TubulesMaleMiddle AgedOrganophosphonatesPhosphatesRenal InsufficiencyadefovirAdenineAntiviral AgentsBiomarkersCreatinineOrganophosphonatesPhosphatesTenofovirUric Acid

Identifiers

PMID22506503
PMCPMC3443969
OpenAlexW1987753756

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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.