ClinicalTrials.gg
Not yet recruitingNCT06376396NeuroSolveUpdated Apr 23, 2024

Assessment of Combined Praziquantel and Albendazole vs Albendazole Alone to Treat Active Parenchymal Neurocysticercosis

A Phase 4 interventional study of albendazole and praziquantel and Albendazole in Neurocysticercosis, sponsored by R-Evolution Worldwide S.r.l. Impresa Sociale. Not yet recruiting. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-04-23.

Sponsored by R-Evolution Worldwide S.r.l. Impresa Sociale · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Dec 2025, 11 months ago, but the record still lists the study as not yet recruiting.
Phase
Phase 4
Study type
Interventional
Enrollment
300
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The goal of this clinical trial is to compare the combination albendazole and praziquantel versus albendazole alone in patients affected by neurocysticercosis.

Read the detailed description

This is a randomized, two arms, parallel-groups, open-label clinical trial to assess if the combination of antiparasitic praziquantel and albendazole is better than albendazole alone in the treatment of active parenchymal neurocysticercosis in Tanzania and Zambia.

Background and Study Rationale: between the forms of human cysticercosis caused by Taenia solium, neurocysticercosis is a major contributor to the burden of seizure disorders and epilepsy in most of the world, while it has relatively poor clinical evidence on treatment options, requiring further data, mainly from additional randomized controlled trials. In particular albendazole and praziquantel are the two parasiticides recommended for use in treating active neurocysticercosis (NCC). Specifically, albendazole is recommended for use in patients with a single cyst while both albendazole and praziquantel (combination therapy) are recommended for patients with multiple cysts. However, not all patients with single cysts respond to albendazole monotherapy. Combination therapy may be effective in patients with single cysts as it has already been shown effective for multiple cysts.

Most studies of treatment success for NCC have been conducted in Latin America and India. In India, the studies were performed primarily on singular cystic lesions. Despite Sub-Saharan Africa (SSA) being recognized as endemic for this parasite, no study evaluating the success of standard treatment in humans has been conducted in this region. Additionally, it is difficult to extrapolate information from other regions other than SSA due to possible differences in genetic, clinical, and environmental factors.

Primary Objective:

The primary objective of this study is to determine if the anthelmintics combination of praziquantel and albendazole is better than albendazole alone in the treatment of the active parenchymal neurocysticercosis based on cyst resolution.

Secondary Objectives:

  1. To determine if the combination of antiparasitic praziquantel and albendazole is better than albendazole alone in the treatment of active parenchymal neurocysticercosis based on seizures reduction
  2. To estimate the change in quality of life of patients with active symptomatic NCC before and after treatment with combined antiparasitic treatment and mono...
  3. To assess the role of serology in diagnosis, management and follow up of participants treated for neurocysticercosis.
02

Conditions studied

  • Neurocysticercosis

Keywords

  • Neglected Tropical Disease
  • Epilepsy
03

In context

Neurocysticercosis

21 studies on the registry are indexed under Neurocysticercosis; 5 are open to participants now.

This study's planned enrollment of 300 is above the median of 107 across 13 interventional studies indexed under Neurocysticercosis.

Browse Neurocysticercosis studies →

Lead sponsor

This is the only study on the registry with R-Evolution Worldwide S.r.l. Impresa Sociale as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Living in the study area for a continuous period of 3 years
  • Adult aged 18 years and above
  • Are willing and able to consent to this study
  • Meet the definitions of active symptomatic NCC
  • Have late onset of epilepsy or history of seizures, epileptic seizures
  • Subjects willing to undergo diagnostic procedures
  • Subjects medically stable enough for trial medication to be initiated
  • Subjects willing to be hospitalized for 11-20 days to receive treatment for NCC
  • Subjects willing to be followed up for one year following receipt of study medication

Exclusion criteria

Exclusion Criteria:

  • Women pregnant or breastfeeding
  • Symptomatic NCC with cysts in extra-parenchymal location (sub-arachnoid and/or ventricles)
  • Have uncontrolled hypertension and/or diabetes
  • Have chronic consuming illness such as cancer or mental handicap to not allow them to follow the study instructions
  • Have severe immunodeficiency eg. /AIDS or diseases
  • Already known allergies to albendazole or praziquantel
  • Subject taking part in another clinical/pharmacological study in the 30 days preceding enrollment
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
300 participants (estimated)

Study arms

  • Experimental
    Albendazole and Praziquantel

    This arm includes combined albendazole with praziquantel, given to approximately 150 participants. Subjects will also receive dexamethasone as an adjunct treatment. An appropriate dose will be calculated per participant's body weight and administered to each participant daily for 10 days. Participants will be monitored for 30 minutes following oral medication, and a repeat dose will be administered if a participant vomits within this observation period. Additional doses (the whole cycle) will be supplied for participants failed to clear NCC in six months.

    Drug: albendazole and praziquantel

  • Active comparator
    Albendazole

    This arm includes albendazole monotherapy, given to approximately 150 participants. Subjects will also receive dexamethasone as an adjunct treatment. An appropriate dose will be calculated per participant's body weight and administered to each participant daily for 10 days. Participants will be monitored for 30 minutes following oral medication, and a repeat dose will be administered if a participant vomits within this observation period. Additional doses (the whole cycle) will be supplied for participants failed to clear NCC in six months.

    Drug: Albendazole

Interventions

  • Drugalbendazole and praziquantel

    Drug pages: Albendazole · Praziquantel

    Combination of albendazole plus praziquantel

    Also known as: Albendazole, Praziquantel

  • Albendazole alone

06

What researchers measure

Primary outcomes

  1. Cyst resolution or reduction in both study arms

    The primary objective of this study is to determine if the anthelmintic combination of praziquantel and albendazole is better than albendazole alone in the treatment of active parenchymal cysticercosis, based on cyst resolution. The cysts resolution is defined by at least 70% resolution at brain imaging (CT scan / MRI) between the baseline imagines and those at 6-week to 6-month following treatment.

    Time frame: 6 weeks and 6 months

Secondary outcomes

  1. Seizures frequency

    Reduction of seizures frequency at 6-weeks to 6-months following treatment

    Time frame: 6 weeks and 6 months

  2. Quality of Life questionnaire

    The improvement in Quality of life (QoL) at 6-weeks, 6-months and 12-months following treatment.

    Time frame: 6 weeks, 6 months and 1 year

  3. Headache

    The headache severity and frequency will be assessed by in-depth neurological examination, including patient-reported outcome measures (e.g. VAS - Visual Analog Scale), at the following defined time point: baseline, 6 weeks, 6 months and 1 year

    Time frame: 6 weeks, 6 months and 1 year

  4. Serological test results correlation with neuroimaging results

    To assess the role of serology in diagnosis, management and follow up of participants treated for neurocysticercosis, antigen and antibody detecting tests results will be done and the results will be compared with neuroimaging (CT/MRI), at baseline, 6-week, 6-month and 1 year following treatment.

    Time frame: Baseline, 6 weeks, 6 months and 1 year

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Adebayo PB, Akinyemi RO, Ogun SA, Ogunniyi A. Seizure severity and health-related quality of life of adult Nigerian patients with epilepsy. Acta Neurol Scand. 2014 Feb;129(2):102-8. doi: 10.1111/ane.12146. Epub 2013 May 18. PubMed 23682560 ↗
  • Azimi A, Fattahi R, Asadi-Lari M. Knowledge translation status and barriers. J Med Libr Assoc. 2015 Apr;103(2):96-9. doi: 10.3163/1536-5050.103.2.008. No abstract available. PubMed 25918490 ↗
  • Fogang YF, Savadogo AA, Camara M, Toffa DH, Basse A, Sow AD, Ndiaye MM. Managing neurocysticercosis: challenges and solutions. Int J Gen Med. 2015 Oct 16;8:333-44. doi: 10.2147/IJGM.S73249. eCollection 2015. PubMed 26527895 ↗
  • Garcia HH, Nash TE, Del Brutto OH. Clinical symptoms, diagnosis, and treatment of neurocysticercosis. Lancet Neurol. 2014 Dec;13(12):1202-15. doi: 10.1016/S1474-4422(14)70094-8. Epub 2014 Nov 10. PubMed 25453460 ↗
  • Kinyanjui DW, Kathuku DM, Mburu JM. Quality of life among patients living with epilepsy attending the neurology clinic at Kenyatta National Hospital, Nairobi, Kenya: a comparative study. Health Qual Life Outcomes. 2013 Jun 18;11:98. doi: 10.1186/1477-7525-11-98. PubMed 23777194 ↗
  • Makasi CE, Kilale AM, Ngowi BJ, Lema Y, Katiti V, Mahande MJ, Msoka EF, Stelzle D, Winkler AS, Mmbaga BT. Knowledge and misconceptions about epilepsy among people with epilepsy and their caregivers attending mental health clinics: A qualitative study in Taenia solium endemic pig-keeping communities in Tanzania. Epilepsia Open. 2023 Jun;8(2):487-496. doi: 10.1002/epi4.12720. Epub 2023 Mar 20. PubMed 36896648 ↗
  • Nau AL, Mwape KE, Wiefek J, Schmidt K, Abatih E, Dorny P, Praet N, Chiluba C, Schmidt H, Phiri IK, Winkler AS, Gabriel S, Blocher J. Cognitive impairment and quality of life of people with epilepsy and neurocysticercosis in Zambia. Epilepsy Behav. 2018 Mar;80:354-359. doi: 10.1016/j.yebeh.2017.10.042. Epub 2017 Dec 6. PubMed 29221763 ↗
  • Nyangi C, Stelzle D, Mkupasi EM, Ngowi HA, Churi AJ, Schmidt V, Mahonge C, Winkler AS. Knowledge, attitudes and practices related to Taenia solium cysticercosis and taeniasis in Tanzania. BMC Infect Dis. 2022 Jun 13;22(1):534. doi: 10.1186/s12879-022-07408-0. PubMed 35692033 ↗
  • Owolabi LF, Adamu B, Jibo AM, Owolabi SD, Imam AI, Alhaji ID. Neurocysticercosis in people with epilepsy in Sub-Saharan Africa: A systematic review and meta-analysis of the prevalence and strength of association. Seizure. 2020 Jan 7;76:1-11. doi: 10.1016/j.seizure.2020.01.005. Online ahead of print. PubMed 31935478 ↗
  • Stelzle D, Makasi C, Schmidt V, Trevisan C, van Damme I, Welte TM, Ruether C, Fleury A, Dorny P, Magnussen P, Zulu G, Mwape KE, Bottieau E, Gabriel S, Ngowi BJ, Winkler AS; SOLID collaborators. Epidemiological, clinical and radiological characteristics of people with neurocysticercosis in Tanzania-A cross-sectional study. PLoS Negl Trop Dis. 2022 Nov 28;16(11):e0010911. doi: 10.1371/journal.pntd.0010911. eCollection 2022 Nov. PubMed 36441777 ↗
  • Torgerson PR, Devleesschauwer B, Praet N, Speybroeck N, Willingham AL, Kasuga F, Rokni MB, Zhou XN, Fevre EM, Sripa B, Gargouri N, Furst T, Budke CM, Carabin H, Kirk MD, Angulo FJ, Havelaar A, de Silva N. World Health Organization Estimates of the Global and Regional Disease Burden of 11 Foodborne Parasitic Diseases, 2010: A Data Synthesis. PLoS Med. 2015 Dec 3;12(12):e1001920. doi: 10.1371/journal.pmed.1001920. eCollection 2015 Dec. PubMed 26633705 ↗
  • Trevisan C, Damme IV, Ngowi B, Schmidt V, Stelzle D, Moller KS, Kabululu M, Makasi CE, Magnussen P, Bottieau E, Abatih E, Johansen MV, Ngowi H, Ndawi B, Mwape KE, Zulu G, Dorny P, Winkler AS, Gabriel S, On Behalf Of The Solid Consortium. Trial Design of a Prospective Multicenter Diagnostic Accuracy Study of a Point-of-Care Test for the Detection of Taenia solium Taeniosis and Neurocysticercosis in Hospital-Based Settings in Tanzania. Diagnostics (Basel). 2021 Aug 24;11(9):1528. doi: 10.3390/diagnostics11091528. PubMed 34573870 ↗
  • Braae UC, Saarnak CF, Mukaratirwa S, Devleesschauwer B, Magnussen P, Johansen MV. Taenia solium taeniosis/cysticercosis and the co-distribution with schistosomiasis in Africa. Parasit Vectors. 2015 Jun 12;8:323. doi: 10.1186/s13071-015-0938-7. PubMed 26065414 ↗

Individual participant data

Plan to share: Yes — We plan to share the de-identified data on efficacy and safety during publication of the study results.

Supporting information: Study protocol, Statistical analysis plan, Informed consent form

Time frame: Within 12 months after study completion.

Access criteria: Open access

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Jun 2024; primary completion for Dec 2025, 18 months later.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 25, 2024
First posted
Apr 19, 2024
StartEst.
Jun 2024
Primary completionEst.
Dec 2025
CompletionEst.
Dec 2026
Last update
Apr 23, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 23, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06376396
Lead sponsor
R-Evolution Worldwide S.r.l. Impresa Sociale
Collaborators
Muhimbili University of Health and Allied Sciences, National Institute for Medical Research, Tanzania, Sokoine University of Agriculture, University of Zambia, University Ghent
Responsible party
Dario Scaramuzzi (Director, R-Evolution Worldwide S.r.l. Impresa Sociale) — Principal investigator
First posted
Apr 19, 2024
Start date
Jun 2024 (estimated)
Primary completion
Dec 2025 (estimated)
Completion
Dec 2026 (estimated)
Last update
Apr 23, 2024

Study contacts

Bernard J. Ngowi, Dr
Contact
Ngowi.Bernard@udsm.ac.tz
+255 252500082
Helena A. Ngowi, Prof.
Contact
helenangowi@gmail.com
+255 232640037
Kabemba E. Mwape, Prof.
principal investigator · University of Zambia

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Apr 2024. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drugs tested here: Albendazole · Praziquantel

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