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L-praziquantel Orodispersible Tablets (L-PZQ ODT) in Schistosoma Infected Children

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ClinicalTrials.gov Identifier: NCT03845140
Recruitment Status : Recruiting
First Posted : February 19, 2019
Last Update Posted : October 19, 2020
Sponsor:
Information provided by (Responsible Party):
Merck KGaA, Darmstadt, Germany

Brief Summary:
The study will evaluate the safety and efficacy of L-praziquantel orodispersible (L-PZQ ODT) tablets in Schistosoma infected children aged 3 months to 6 years.

Condition or disease Intervention/treatment Phase
Schistosomiasis Drug: L-PZQ ODT Drug: Biltricide® Phase 3

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 311 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: An Open Label, Phase III Efficacy and Safety Study of L Praziquantel Orodispersible Tablets (L-PZQ ODT) in Schistosoma Infected Children 3 Months to 6 Years of Age, Including a 2:1 Randomized, Controlled Cohort of Schistosoma Mansoni Infected Children 4 to 6 Years of Age Treated With L PZQ ODT or Commercial PZQ (Biltricide®)
Actual Study Start Date : September 2, 2019
Estimated Primary Completion Date : May 30, 2021
Estimated Study Completion Date : May 30, 2021

Resource links provided by the National Library of Medicine


Arm Intervention/treatment
Experimental: Cohort 1, Treatment 1a: L-PZQ ODT
Participants aged 4 to 6 years infected with Schistosoma (S.) mansoni will receive single oral dose of L-PZQ ODT 50 milligram/Kilogram (mg/Kg) after food-intake.
Drug: L-PZQ ODT
Participants will receive single oral dose of L-PZQ ODT 50 mg/Kg on Day 1.

Active Comparator: Cohort 1, Treatment 1b: Biltricide®
Participants aged 4 to 6 years infected with S. mansoni will receive single oral dose of Biltricide® 40 mg/Kg crushed tablet after food intake.
Drug: Biltricide®
Participants will receive single oral dose of Biltricide® 40 mg/kg crushed tablet on Day 1.

Experimental: Cohort 2: L-PZQ ODT
Participants aged 2 to 3 years infected with S. mansoni will receive single oral dose of L-PZQ ODT 50 mg/Kg after the food intake.
Drug: L-PZQ ODT
Participants will receive single oral dose of L-PZQ ODT 50 mg/Kg on Day 1.

Experimental: Cohort 3: L-PZQ ODT
Participants aged 3 to less than 24 months infected with S. mansoni will receive single oral dose of L-PZQ ODT 50 mg/Kg after the food intake.
Drug: L-PZQ ODT
Participants will receive single oral dose of L-PZQ ODT 50 mg/Kg on Day 1.

Experimental: Cohort 4: L-PZQ ODT
Participants aged 3 months to 6 years infected with S. haematobium will receive single oral dose of L-PZQ ODT 50 mg/Kg after the food intake. Additional participants will receive 60 mg/Kg of L-PZQ ODT as decided by the Independent data monitoring committee (IDMC).
Drug: L-PZQ ODT
Participants will receive single oral dose of L-PZQ ODT 50 mg/Kg on Day 1.

Drug: L-PZQ ODT
Participant will receive single oral dose of L-PZQ ODT 60 mg/kg as decided by the IDMC.




Primary Outcome Measures :
  1. Numbers of Participants With Clinical Cure [ Time Frame: 17 to 21 days post-treatment ]
    Clinical cure is defined as no parasite eggs in the stool or urine 17 to 21 days post-treatment.


Secondary Outcome Measures :
  1. Egg Reduction Rate [ Time Frame: Pre-treatment, 17 to 21 days post-treatment ]
    Egg reduction rate will be calculated using parasite egg counts as determined by the Kato Katz method for Cohorts 1, 2 and 3 and the urine filtration method for Cohort 4.

  2. Cure Rate [ Time Frame: 17 to 21 days post-treatment ]
    Cure defined as no evidence of parasite antigens in urine as measured with Point-of-Care Circulating Cathodic Antigen (POC-CCA) test.

  3. Acceptability of the Study Intervention [ Time Frame: Day 1 ]
    Acceptability of the study intervention will be recorded as the reaction of participants to study intervention. The acceptability will be assessed by the nurse/site staff for all children enrolled in the study.

  4. Maximum Observed Plasma Concentration (Cmax) of L-PZQ ODT [ Time Frame: Pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 12 hours post-dose ]
  5. Time to Reach Maximum Plasma Concentration (Tmax) of L-PZQ ODT [ Time Frame: Pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 12 hours post-dose ]
  6. Area Under the Plasma Concentration-Time Curve From Time Zero to the Last Sampling Time (AUC 0-t) of L-PZQ ODT [ Time Frame: Pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 12 hours post-dose ]
  7. Occurrence and Severity of Treatment-emergent Adverse Events (TEAEs) and Serious AEs (SAEs) [ Time Frame: Day 1 up to Day 21 ]
  8. Occurrence of Treatment Related Adverse Events [ Time Frame: Day 1 up to Day 21 ]
  9. Number of Participants With Clinically Significant Changes in Vital Signs, Laboratory Parameters and 12-lead Electrocardiogram (ECG) Findings [ Time Frame: Day 1 up to Day 21 ]
    Number of participants with clinically significant changes will be reported.



Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


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Ages Eligible for Study:   3 Months to 6 Years   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Age of the participant is 4 to 6 years of age (Cohorts 1 and 4), 2 to 3 years of age (Cohorts 2 and 4) 3 to less than 24 months of age (Cohorts 3 and 4)
  • Participants are; Schistosoma (S.) mansoni positive (Cohorts 1, 2, and 3); diagnosis defined as positive egg counts in stool greater than or equal to ( >=) 1 egg per 1 occasion) according to World Health Organization (WHO) classification [1]: light (1 to 99 eggs per gram of feces), moderate (100 to 399 eggs per gram of feces) and heavy (>= 400 eggs per gram of feces) infections; S. haematobium positive (Cohort 4); diagnosis defined as positive egg counts in urine (>= 1 egg per 10 milliliter(mL) urine) according to WHO classification (Prevention and Control of Schistosomiasis and Soil Transmitted Helminthiasis. WHO Technical Report Series No. 912. WHO, Geneva, Switzerland, 2002).light (less than (<) 50 eggs per 10 mL of urine) and heavy (>=50 eggs per 10 mL of urine) infections
  • Participants have a minimum body weight of 8.0 Kilograms (Kg) in 2 to 6 years of age children and 5.0 Kg in 3 months to < 24 months of age infants and toddlers
  • Parent's or guardian/legally authorized representative's ability to communicate well with the Investigator and his/her delegate, to understand the protocol requirements and restrictions, and to be willing to have their children comply with the requirements of the entire study, that is:

    • To be examined by a study physician at screening and 17 to 21 days after treatment
    • To provide stool samples at screening and 17 to 21 days after treatment
    • To provide urine samples at screening and 17 to 21 days after treatment
    • To provide venous blood samples for laboratory assessments
    • To be housed in the clinic for 12 to 24 hours
    • To provide venous blood samples for pharmacokinetics (PK) assessments (for participants in the PK subset)
  • Participants have a minimum hemoglobin level of 10 gram per deciliter

Exclusion Criteria:

  • Participants with following medical conditions are excluded from the study; Findings in the clinical examination and/or laboratory safety examination on the treatment day, that in the opinion of the Investigator constitute a risk or a contraindication for the child's participation in the study or that could interfere with the study objectives, conduct or evaluation. This includes but is not restricted to bacterial or viral infections, such as dysentery, gastroenteritis, ascites, jaundice, etc.; Participants with seizures and/or medical history of seizures and/or other signs of potential central nervous system involvement; Participants with known cysticercosis, or with signs or symptoms (for example: subcutaneous nodules) suggestive of cysticercosis; Participants with an acute infection or other acute illness within the 7 days prior to study screening; Debilitating illness such as tuberculosis, malnutrition, etc.
  • Treatment with PZQ within the 4 weeks prior to the study screening
  • Concomitant treatment (within 2 weeks prior to enrollment) with medication that might affect the metabolism of PZQ, such as certain anti epileptics (for example: carbamazepine or phenytoin), glucocorticosteroids (for example: dexamethasone), chloroquine, rifampicin or cimetidine (see Biltricide® Summary of Product Characteristics [SmPC])
  • Treatment within the 2 weeks prior to the study screening with anti malarial medications
  • For infants and toddlers being breast fed, treatment of the mothers/wet nurses with PZQ in the 3 days prior to PZQ ODT administration
  • Participation in any clinical study within 4 weeks prior to administration of PZQ ODT, or anticipated at any time until completion of the End of study visit
  • Participants with marked increases of the liver enzymes: alanine aminotransferase and/or aspartate aminotransferase above 3 times the upper limit of normal (ULN); total bilirubin level above 1.5 times the ULN
  • Participants with hepatosplenic schistosomiasis
  • Fever, defined as temperature above 37.5 degree Celsius axillary or oral mixed S. haematobium and S. mansoni infections

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03845140


Contacts
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Contact: Communication Center +49 6151 72 5200 service@emdgroup.com

Locations
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Côte D'Ivoire
Universitè de Cocody Recruiting
Abidjan, Côte D'Ivoire, 22BP770
Contact       eliezerngoran@yahoo.fr   
Principal Investigator: Eliezer N'Goran         
Kenya
Kemri Kisumu Recruiting
Kisumu, Kenya, 40100
Contact       pmwinzi@kemri.org   
Principal Investigator: Pauline Mwinzi         
Sponsors and Collaborators
Merck KGaA, Darmstadt, Germany
Investigators
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Study Director: Medical Responsible Merck KGaA, Darmstadt, Germany
Additional Information:
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Responsible Party: Merck KGaA, Darmstadt, Germany
ClinicalTrials.gov Identifier: NCT03845140    
Other Study ID Numbers: MS200661_0003
First Posted: February 19, 2019    Key Record Dates
Last Update Posted: October 19, 2020
Last Verified: October 2020
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: Merck KGaA, Darmstadt, Germany is committed to sharing patient-level data and supporting documentation from applicable studies according to company policies. Further information on data sharing and how to request data can be found on our website: https://www.merckgroup.com/en/research/our-approach-to-research-and-development/healthcare/clinical-trials/commitment-responsible-data-sharing.html

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Merck KGaA, Darmstadt, Germany:
Schistosomiasis
Children
L-praziquantel
Biltricide®
Additional relevant MeSH terms:
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Schistosomiasis
Trematode Infections
Helminthiasis
Parasitic Diseases
Praziquantel
Anthelmintics
Antiparasitic Agents
Anti-Infective Agents