ClinicalTrials.gg
CompletedNCT05538767Updated Jun 15, 2023

Efficacy and Safety of Emodepside in Adolescents and Adults Infected With Hookworm

A Phase 2 interventional study of Emodepside and Albendazole 400mg in Hookworm Infections, sponsored by Jennifer Keiser. Completed at 1 site in Tanzania. Open to participants aged 12 Years to 60 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-06-15.

Sponsored by Jennifer Keiser · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
320
Allocation
Randomized
Ages
12 Years to 60 Years
Sex
All
01

Study summary

To compare the efficacy and safety of emodepside to that of albendazole (Zentel®) in participants aged 12-60, inclusive, infected with hookworm.

02

Conditions studied

  • Hookworm Infections

Keywords

  • Hookworm
  • Emodepside
  • Efficacy
  • Safety
  • Confirmatory Stage
  • Soil Transmitted Helminth
03

In context

Hookworm Infections

39 studies on the registry are indexed under Hookworm Infections; 5 are open to participants now.

This study's enrollment of 320 is above the median of 182 across 36 interventional studies indexed under Hookworm Infections.

Browse Hookworm Infections studies →

Lead sponsor

Jennifer Keiser is the lead sponsor of 17 studies on the registry; 3 are open to participants now.

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

04

Who can participate

Ages eligible
12 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

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

  • Male or female adults aged between 12 and 60 years;
  • Written and signed ;
  • Was examined by a study physician before treatment;
  • Provided two stool samples at baseline;
  • Hookworm EPG > 48 and at least two Kato-Katz thick smears slides with more than one hookworm eggs.

Exclusion criteria

Exclusion Criteria:

  • Pregnant or lactating and/or planning to become pregnant within three months after drug treatment;
  • Type 1 and/or 2 diabetes;
  • Psychiatric disorders;
  • History of ophthalmological conditions;
  • Presence or history of major systemic or chronic illnesses, as assessed by a medical doctor, during initial clinical assessment;
  • Suffers from severe anaemia ( \< 80 g/l);
  • Received anthelminthic treatment within past four weeks;
  • Attending other clinical trials during the study;
  • Received strong inducers or inhibitors as well as concomitant treatments that are relevant substrate for CYP3A4 such as clarithromycin, erythromycin and rifampicin;
  • Received strong P-gp inhibitors as well as concomitant treatments that are relevant substrates for P-gp such as clotrimazole and ritonavir.
  • Participated in stage I trials of this protocol
Terms in these criteria, in plain language(3)

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.

Informed consent

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You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

CYP3A (CYP3A4) inhibitors and inducers

CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.

Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
320 participants (actual)

Study arms

  • Experimental
    Emodepside 30 mg

    Drug: Emodepside

  • Active comparator
    Albendazole 400 mg

    Drug: Albendazole 400mg

Interventions

06

What researchers measure

Primary outcomes

  1. Cure rate (CR) of emodepside against hookworm

    CR will be calculated as the percentage of hookworm egg-positive participants at baseline who become egg-negative after treatment.

    Time frame: In the week between 14 and 21 days post-treatment

Secondary outcomes

  1. Geometric Mean Egg Reduction Rate (ERR) of the emodepside against hookworm.

    Eggs per gram of stool (EPG) will be assessed by adding up the egg counts from the quadruplicate Kato-Katz thick smears and multiplying this number by a factor of six. The egg reduction rate (ERR) is calculated as follows: ERR = (1-(geometric mean EPG at follow-up/geometric mean EPG at baseline))\*100). Note: in contrast to the publication the "outcome measure" entry mask requires the complementary percentage: (geometric mean at follow-up/geometric mean at baseline)\*100).

    Time frame: In the week between 14 and 21 days post-treatment

  2. CR of emodepside against Trichuris trichiura and Ascaris lumbricoides

    CR will be calculated as the percentage of Trichuris trichiura and Ascaris lumbricoides egg-positive participants at baseline who become egg-negative after treatment.

    Time frame: In the week between 14 and 21 days post-treatment

  3. ERR of the emodepside against Trichuris trichiura and Ascaris lumbricoides.

    EPG will be assessed by adding up the egg counts from the quadruplicate Kato-Katz thick smears and multiplying this number by a factor of six. The ERR is calculated as follows: ERR = (1-(geometric mean EPG at follow-up/geometric mean EPG at baseline))\*100). Note: in contrast to the publication the "outcome measure" entry mask requires the complementary percentage: (geometric mean at follow-up/geometric mean at baseline)\*100).

    Time frame: In the week between 14 and 21 days post-treatment

  4. Infection status and intensity assessed for at baseline and 14-21 days post-treatment by FECPAK-G2.

    Time frame: At baseline and 14-21 days post-treatment

07

Study locations

1 site
  • Public Health Laboratory Ivo de Carneri
    Chake Chake, Pemba 122, Tanzania
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 15, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05538767
Lead sponsor
Jennifer Keiser
Collaborators
Public Health Laboratory Ivo de Carneri
Responsible party
Jennifer Keiser (Prof. Dr., Swiss Tropical & Public Health Institute) — Sponsor-investigator
First posted
Sep 14, 2022
Start date
Sep 16, 2022
Primary completion
Apr 11, 2023
Completion
Apr 11, 2023
Last update
Jun 15, 2023

Oversight

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

Not currently enrolling

This study is completed, as verified in Jun 2023. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Emodepside

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