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Completed

NCT Number: NCT06373835

Efficacy and Safety of Emodepside in Adults Infected With Strongyloidiasis Stercoralis

Efficacy, safety and pharmacokinetics of ascending dosages of emodepside and in comparison to ivermectin against Strongyloidiasis stercoralis in adults: randomized stage II seamless adaptive controlled trials

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Key information

Age range

18 year–60 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Lao Tropical and Public Health Institute

Vientiane, Laos

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Written informed consent signed by the participant him/herself
  • Males and females of age 18 or older
  • Infected with S. stercoralis (positive by at least two Baermann assays on two different days and infection intensities of at least 0.75 LPG in the two stool samples.
  • Agree to comply with the study procedures, including to be examined by a study physician at the beginning of the study and to provide three stool samples during the screening period (within a maximum of 10 days) and approximately three weeks after treatment (follow-up).
  • Female participants of childbearing potential to ensure adequate contraception during the study period.

Exclusion criteria

  • No written informed consent by individual.
  • Presence of acute or uncontrolled systemic illnesses (e.g. severe anemia, clinical malaria) as assessed by a medical doctor, upon initial clinical assessment.
  • Recent history of acute or severe chronic disease, as assessed by a medical doctor or reported by the participant: Type 1 and/or 2 diabetes; Psychiatric disorders; Chronic heart, liver, or renal disease
  • Prior treatment with anthelmintics (eg, diethylcarbamazine [DEC], suramin, ivermectin, mebendazole or albendazole) within 4 weeks before planned study drug administration.
  • Actively participating in other clinical trials during the study.
  • Positive pregnancy test or breastfeeding women and planning to become pregnant within three months of study drug administration.
  • Received strong CYP3A4 inducers or inhibitors as well as concomitant treatments that are relevant substrate for CYP3A4 such as clarithromycin, erythromycin and rifampicin within 4 weeks before planned study drug administration.
  • Received strong P-gp inhibitors as well as concomitant treatments that are relevant substrates for P-gp such as clotrimazole and ritonavir.
  • Known allergy to study drugs or any of the ingredients

Treatment and study plan

Emodepside

Drug

5 mg tablets of emodepside and matching placebo tablets, 3mg ivermectin

Primary outcomes

  1. Cure rate (CR) of emodepside against Strongyloides stercoralis

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

    The CR will be calculated as the proportion of Strongyloides stercoralis larvae-positive participants at baseline who become larvae-negative after treatment.

Secondary outcomes

  1. Safety and tolerability of the dose-dependent emodepside treatment regimes, and compared with ivermectin.

    Time frame: Actively evaluated at 3 hours, 24 hours, 72 hours, and 14 days post-treatment

    AEs will be evaluated descriptively as the difference of proportion reported AEs before and after treatment.

  2. Geometric Mean Larvae Reduction Rate (LRR) of emodepside against Strongyloides stercoralis.

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

    The LRRs will be calculated based on the geometric mean

  3. Exposure response of emodepside in adults

    Time frame: Actively collected at 0 hours, 0.5 hours, 2.5 hours, 5 hours, 24 hours, 72 hours, and 14 days post-treatment

    Emodepside will be quantified using a validated liquid chromatography tandem mass spectrometry (LC-MS/MS) method. Drug concentrations will be calculated by interpolation from a calibration curve with a foreseen limit of quantification of approximately 1-5 ng/ml.

  4. Cure rate (CR) and egg reduction rate (ERR) with other soil-transmitted helminths (STH) and trematodes

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

    The CR will be calculated as the proportion of the STH or trematode positive participants at baseline who become egg-negative after treatment. The egg reduction rate (ERR) is calculated as follows: ERR = (1-(geometric mean EPG at follow-up/geometric mean EPG at baseline))*100).

Sponsors and collaborators

Lead sponsor

Swiss Tropical & Public Health Institute

Other

Collaborators

  • National Institute of Public Health, Vientiane, Laos

Registry information

Official study title

Efficacy, Safety and Pharmacokinetics of Ascending Dosages of Emodepside and in Comparison to Ivermectin Against Strongyloidiasis Stercoralis in Adults: Randomized Stage II Seamless Adaptive Controlled Trials

Important dates

Study start
2024
Primary completion
2024
Study completion
2024
First posted
Apr 18, 2024
Registry last updated
Nov 20, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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