Evidence map›Paper›PMID 31355931›Full record

Trial reportEpilepsia2019

Exploring the complex associations over time among albendazole treatment, cyst evolution, and seizure outcomes in neurocysticercosis.

Arturo Carpio, Mindy Chang, Hongbin Zhang, Matthew L Romo, Alex Jaramillo, W Allen Hauser, Elizabeth A Kelvin

Open access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Epilepsia, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Anthelmintics for people with neurocysticercosis.The Cochrane database of systematic reviews · 2021
    Pooled it
  2. Article
  3. Article
  4. Review
  5. The Association between Neurocysticercosis and Epilepsy.The American journal of tropical medicine and hygiene · 2020
    Article
  6. Review
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

7 authors at 4 institutions in 3 countries.

Arturo CarpioSchool of Medicine, University of Cuenca, Cuenca, Ecuador.ORCID 0000-0002-5821-6379
Mindy ChangInstitute for Implementation Science in Population Health, City University of New York, New York, New York.
Hongbin ZhangInstitute for Implementation Science in Population Health, City University of New York, New York, New York.
Matthew L RomoLi Ka Shing Faculty of Medicine, School of Public Health, University of Hong Kong, Hong Kong, China.
Alex JaramilloInstitute of Diagnosis by Imaging, Cuenca, Ecuador.
W Allen HauserG. H. Sergievsky Center, Columbia University, New York, New York.
Elizabeth A KelvinInstitute for Implementation Science in Population Health, City University of New York, New York, New York.
City University of New York · USColumbia University · USUniversity of Cuenca · ECUniversity of Hong Kong · HK

Funding

A PILOT STUDY OF NEUROCYSTICERCOSIS TREATMENTR01NS039403 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI HAUSER, WILLARD ALLEN · 2000 to 2002
$1.5M
Obtaining population-based estimates of the timing of antiretroviral therapy initiation using HIV surveillance data: Change-point model development, validation, and disseminationR21AI147933 · NIAID · GRADUATE SCHOOL OF PUBLIC HEALTH AND HEALTH POLICY · PI NASH, DENIS, ZHANG, HONGBIN · 2020 to 2021
$446k
Characterizing Factors that Impact the Evolution of Neurocysticercosis Cysts: A Cyst-Level Analysis Using New Statistical Methods for Complex Longitudinal DataR03NS111189 · NINDS · GRADUATE SCHOOL OF PUBLIC HEALTH AND HEALTH POLICY · PI KELVIN, ELIZABETH A · 2020 to 2020
$152k
Epidemiology of NeurocysticercosisF31NS051946 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI KELVIN, ELIZABETH A · 2005 to 2006
$53k
Dirección de Investigación, Universidad de Cuenca DIUCNIAID NIH HHS R21 AI147933NINDS NIH HHS F31 NS051946NINDS NIH HHS grant R01-NS39403NINDS NIH HHS R03 NS111189Ruth L. Kirschstein National Research Service Award 5F31NS051946
6 · The paper itself

Abstract

objectiveTo develop a causal model for the occurrence of neurocysticercosis (NC)-related seizures and test hypotheses generated from the model.

methodsWe used data from a randomized controlled trial comparing albendazole with placebo among patients newly diagnosed with NC. Based on our causal model, we explored the associations among albendazole treatment, NC cyst evolution, and seizure outcomes over 24 months of follow-up using generalized linear mixed effect models.

resultsWe included 153 participants, of whom 51% received albendazole. The association between seizure outcomes and treatment over time demonstrated lack of linearity and heterogeneity, requiring the inclusion of time-treatment interaction terms for valid modeling. Participants in the albendazole group had fewer seizures overall and of partial onset at all time points compared with the placebo group, but the difference increased over the first few months following treatment, then decreased over time. Generalized seizures exhibited a more complex association; those in the albendazole group had fewer seizures compared with those in the placebo group for the first few months after treatment, and then the association reversed and those in the placebo arm had fewer seizures. Adjusting for the number of NC cysts in each phase resulted in an attenuation of the strength of association between albendazole and seizure outcomes, consistent with mediation. Among participants in whom all cysts had disappeared (n = 21), none continued to have seizures. SIGNIFICANCE: Albendazole treatment is associated with a possible reduction in focal seizures in the short term (3-6 months), perhaps by hastening the resolution of the cysts. However, the effect is not discernible over the long term, because most cysts either calcify or resolve completely, regardless of whether treated with albendazole. The stage of evolution of the cysticercus is an important consideration in the evaluation of albendazole effect on seizure outcome.

Indexed as

AdolescentAdultAgedAged, 80 and overAlbendazoleAnthelminticsChildChild, PreschoolDisease ProgressionFemaleHumansMaleMiddle AgedNeurocysticercosisSeizuresTreatment OutcomeAlbendazoleAnthelminticsalbendazoleanthelmintic drugsepilepsyneurocysticercosisrandomized clinical trialseizures

Identifiers

PMID31355931
PMCPMC6751555
OpenAlexW2964751275

What OpenQuestion holds

Textmetadata
LicenceTDM
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.