Evidence map›Paper›PMID 34488846›Full record

ArticleTrials2021

The praziquantel in preschoolers (PIP) trial: study protocol for a phase II PK/PD-driven randomised controlled trial of praziquantel in children under 4 years of age.

Emily L Webb, Andrew Edielu, Hannah W Wu, Narcis B Kabatereine, Edridah M Tukahebwa, Alfred Mubangizi, Moses Adriko, Alison M Elliott, William W Hope, Patrice A Mawa and 2 more

Registry-linked trialOpen access · goldAbstract readClinical Trial Protocol
In one paragraph

Article in Trials, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03640377 (Phase II PK/PD Driven Dose Finding Trial of Praziquantel in Children Under Four), which is not on this map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.0field-weighted citation impact, top 15% 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.

NCT03640377 phase2completednot on this map

Phase II PK/PD Driven Dose Finding Trial of Praziquantel in Children Under Four

TypeinterventionalSponsorRhode Island HospitalRan2021 to 2024Enrolled354ConditionsSchistosomiasis, Schistosomiasis Mansoni, Schistosoma Japonicum InfectionArmsPraziquantel
3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 16 citations in OpenAlex.

  1. Research square · 2026
    Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Relationships Between Schistosoma mansoni Infection Intensity and Nutritional Status and Anemia Among Preschool-aged Children in Uganda.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2024
    Article
  9. Review
  10. 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

12 authors at 4 institutions in 3 countries.

Emily L Webb *MRC International Statistics and Epidemiology Group, London School of Hygiene and Tropical Medicine, London, UK. emily.webb@lshtm.ac.uk.ORCID http://orcid.org/0000-0002-4019-7456
Andrew Edielu *MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda.
Hannah W WuDepartment of Pediatrics, Alpert Medical School of Brown University, Providence, RI, USA.
Narcis B KabatereineVector Control Division, Ministry of Health, Kampala, Uganda.
Edridah M TukahebwaVector Control Division, Ministry of Health, Kampala, Uganda.
Alfred MubangiziVector Control Division, Ministry of Health, Kampala, Uganda.
Moses AdrikoVector Control Division, Ministry of Health, Kampala, Uganda.
Alison M ElliottMRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda.
William W HopeAntimicrobial Pharmacodynamics and Therapeutics, University of Liverpool, Liverpool Health Partners, Liverpool, UK.
Patrice A Mawa *MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda.
Jennifer F Friedman *Department of Pediatrics, Alpert Medical School of Brown University, Providence, RI, USA.
Amaya L Bustinduy *Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, UK.
London School of Hygiene & Tropical Medicine · GBMinistry of Health · UGBrown University · USUniversity of Liverpool · GB

Funding

Phase II PK/PD driven dose finding trial of Praziquantel in children under fourR01HD095562 · NICHD · RHODE ISLAND HOSPITAL · PI BUSTINDUY, AMAYA LOPEZ, FRIEDMAN, JENNIFER F · 2018 to 2022
$2.4M
Optimizing interventions to mitigate schistosomiasis-related morbidity among pregnant women and childrenK24AI112964 · NIAID · RHODE ISLAND HOSPITAL · PI FRIEDMAN, JENNIFER F · 2015 to 2024
$1.7M
Medical Research Council MC_UU_00027/5Medical Research Council MR/R010161/1NIAID NIH HHS K24 AI112964NICHD NIH HHS R01 HD095562NIH HHS R01 HD095562
6 · The paper itself

Abstract

backgroundOver 200 million individuals worldwide are infected with Schistosoma species, with over half of infections occurring in children. Many children experience first infections early in life and this impacts their growth and development; however praziquantel (PZQ), the drug used worldwide for the treatment of schistosomiasis, only has regulatory approval among adults and children over the age of four, although it is frequently used "off label" in endemic settings. Furthermore, pharmacokinetic/pharmacodynamics (PK/PD) evidence suggests the standard PZQ dose of 40 mg/kg is insufficient in preschool-aged children (PSAC). Our goal is to understand the best approaches to optimising the treatment of PSAC with intestinal schistosomiasis.

methodsWe will conduct a randomised, controlled phase II trial in a Schistosoma mansoni endemic region of Uganda and a Schistosoma japonicum endemic region of the Philippines. Six hundred children, 300 in each setting, aged 12-47 months with Schistosoma infection will be randomised in a 1:1:1:1 ratio to receive either (1) 40 mg/kg PZQ at baseline and placebo at 6 months, (2) 40 mg/kg PZQ at baseline and 40 mg/kg PZQ at 6 months, (3) 80 mg/kg PZQ at baseline and placebo at 6 months, or (4) 80 mg/kg PZQ at baseline and 80 mg/kg PZQ at 6 months. Following baseline treatment, children will be followed up for 12 months. The co-primary outcomes will be cure rate and egg reduction rate at 4 weeks. Secondary outcomes include drug efficacy assessed by novel antigenic endpoints at 4 weeks, actively collected adverse events and toxicity for 12 h post-treatment, morbidity and nutritional outcomes at 6 and 12 months, biomarkers of inflammation and environmental enteropathy and PZQ PK/PD parameters. DISCUSSION: The trial will provide valuable information on the safety and efficacy of the 80 mg/kg PZQ dose in PSAC, and on the impact of six-monthly versus annual treatment, in this vulnerable age group.

trial registrationClinicalTrials.gov NCT03640377 . Registered on 21 Aug 2018.

Indexed as

AnthelminticsSchistosomiasis mansoniAnimalsChildChild, PreschoolClinical Trials, Phase II as TopicHumansPraziquantelRandomized Controlled Trials as TopicSchistosoma mansoniTreatment OutcomeAnthelminticsPraziquantelChildrenIntestinal schistosomiasisPraziquantelPreschoolSchistosoma japonicumSchistosoma mansoni

Identifiers

PMID34488846
PMCPMC8419815
OpenAlexW3197900912

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.