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Completed

NCT Number: NCT03974178

Fexinidazole in Human African Trypanosomiasis Due to T. b. Rhodesiense

The ultimate goal of this study is to show that fexinidazole offers an alternative over the existing treatments of Human African trypanosomiasis due to Trypanosoma brucei rhodesiense (r-HAT): melarsoprol in patients with stage 2 r-HAT and suramin in patients with stage 1 r-HAT. The main questions it aims to answer are:

* Is the short-term fatality rate and failure rate associated with fexinidazole lower than those of melarsoprol in patients with stage 2 r-HAT? * Is the long-term failure rate associated with fexinidazole lower than that of melarsoprol in patients with stage 2 r-HAT? * Can fexinidazole in patients with stage 1 r-HAT replace the treatment with suramin? * Is fexinidazole treatment safe in patient with r-HAT, regardless of stage?

Participants will receive fexinidazole oral treatment for 10 days. Regular blood draws and lumbar punctures will be performed over 12 months to confirm the cure of the disease. Other assessments will include the recording of adverse events, signs and symptoms of the disease, laboratory tests, vital signs, electrocardiograms.

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Key information

Age range

6 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2 / Phase 3

Primary location

Rumphi District Hospital, Rumphi, Malawi

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Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Signed Informed Consent Form (plus assent for children)
  • ≥ 6 years old
  • ≥ 20 kg body weight
  • Ability to ingest at least one complete meal per day (or at least one Plumpy'Nut® sachet)
  • Karnofsky index ≥ 40
  • Parasitological confirmation of T. b. rhodesiense infection
  • Having a permanent address or being traceable by others and willing and able to comply with follow-up visit schedule
  • Agreement to be hospitalised for a minimum of 13 days and to receive the study treatment

Exclusion criteria

  • Active clinically relevant medical conditions other than HAT that may jeopardize subject safety or at the investigator discretion may interfere with participation in the study.
  • Compromised general health or severely deteriorated general condition, such as severe malnutrition, cardiovascular shock, respiratory distress, or terminal illness
  • Patients with severe hepatic impairment (e.g.: clinical signs of cirrhosis or jaundice)
  • Known hypersensitivity to fexinidazole, to any nitroimidazole drugs (e.g. metronidazole, tinidazole), or to any of the excipients
  • Patients previously enrolled in the study or having already received fexinidazole

Treatment and study plan

fexinidazole

Drug

Tablets of 600 mg; Participants with a weight between 20 and 34 kg received 1200 mg (2 tablets) for 4 days, then 600 mg (1 tablet) for 6 days (with food); Participants with a weight of 35 kg and above received 1800 mg (3 tablets) for 4 days, then 1200 mg (2 tablets) for 6 days (with food)

Primary outcomes

  1. Percentage of Evaluable Patients With Stage 2 r-HAT Who Died by the End of Hospitalization, Considering Only Deaths Possibly Related to r-HAT or Fexinidazole

    Time frame: 12 to 18 days after start of treatment

    The percentage of patients who died between the first intake of fexinidazole until the End-of-Hospitalization Visit (Day 12-18), considering only deaths possibly related to r-HAT or study treatment as assessed by the Data Safety Monitoring Board (DSMB), was calculated. The World Health Organization(WHO) verbal autopsy questionnaire was used since anatomopathological techniques were not available at the study sites (unless the death occurred at the hospital, in which case the investigator was present). In case of death that was not related to r-HAT nor to the study treatment during the hospitalization, the patient is considered as non-evaluable for efficacy purposes. Any patient who left the hospital without being medically discharged by the site Investigator before the planned End-of-Hospitalization Visit, and for whom no outcome could be retrieved, is also to be considered as non-evaluable.

Secondary outcomes

  1. Percentage of Evaluable Patients With Stage 2 r-HAT, Whose Treatment Outcome is a Failure at the End of Hospitalization

    Time frame: 12 to 18 days after start of treatment

    Treatment outcome at end of hospitalization (Day 12-18) is categorized as success or failure. Failure is defined as any of the following: presence of trypanosomes in any body fluid at end of treatment (Day 11), death related to r-HAT or fexinidazole at end of hospitalization according to the DSMB, or absence of clinical improvement leading to the use of rescue medication. Unrelated deaths are neither success nor failure (the patient is considered non-evaluable for efficacy purposes).

  2. Percentage of Evaluable Patients With Stage 2 r-HAT, Whose Treatment Outcome is a Failure at 12 Months

    Time frame: 12 months after start of treatment

    Treatment outcome at test of cure (Month 12) is categorized as success or failure. Failure is defined as any of the following: presence of trypanosomes in any body fluid, death related to r-HAT or fexinidazole according to the DSMB, absence of clinical improvement leading to the use of rescue medication, or WBC count in the CSF >20 cells/μL which was unlikely due to causes other than HAT. Unrelated deaths are neither success nor failure (the patient is considered non-evaluable for efficacy purposes).

  3. Percentage of Evaluable Patients With Stage 1 r-HAT, Whose Treatment Outcome is a Failure at the End of Hospitalization

    Time frame: 12 to 18 days after start of treatment

    Treatment outcome at end of hospitalization (Day 12-18) is categorized as success or failure. Failure is defined as any of the following: presence of trypanosomes in any body fluid at end of treatment (Day 11), death related to r-HAT or fexinidazole at end of hospitalization according to the DSMB, or absence of clinical improvement leading to the use of rescue medication. Unrelated deaths are neither success nor failure (the patient is considered non-evaluable for efficacy purposes).

  4. Percentage of Evaluable Patients With Stage 1 r-HAT, Whose Treatment Outcome is a Failure at 12 Months

    Time frame: 12 months after start of treatment

    Treatment outcome at test of cure (Month 12) is categorized as success or failure. Failure is defined as any of the following: presence of trypanosomes in any body fluid, death related to r-HAT or fexinidazole according to the DSMB, absence of clinical improvement leading to the use of rescue medication, or WBC count in the CSF >20 cells/μL which was unlikely due to causes other than HAT. Unrelated deaths are neither success nor failure (the patient is considered non-evaluable for efficacy purposes).

  5. Percentage of Evaluable Patients With Any r-HAT Stage Who Died by the End of Hospitalization, Considering Only Deaths Possibly Related to r-HAT or Fexinidazole

    Time frame: 12 to 18 days after start of treatment

    The percentage of patients who died between the first intake of fexinidazole until the End-of-Hospitalization Visit (Day 12-18), considering only deaths possibly related to r-HAT or study treatment as assessed by the DSMB, was calculated. The WHO verbal autopsy questionnaire was used since anatomopathological techniques were not available at the study sites (unless the death occurred at the hospital, in which case the investigator was present). In case of death that was not related to r-HAT nor to the study treatment during the hospitalization, the patient is considered as non-evaluable for efficacy purposes. Any patient who left the hospital without being medically discharged by the site Investigator before the planned End-of-Hospitalization Visit, and for whom no outcome could be retrieved, is also to be considered as non-evaluable.

  6. Percentage of Evaluable Patients With Any r-HAT Stage, Whose Treatment Outcome is a Failure at the End of Hospitalization

    Time frame: 12 to 18 days after start of treatment

    Treatment outcome at end of hospitalization (Day 12-18) is categorized as success or failure. Failure is defined as any of the following: presence of trypanosomes in any body fluid at end of treatment (Day 11), death related to r-HAT or fexinidazole at end of hospitalization according to the DSMB, or absence of clinical improvement leading to the use of rescue medication. Unrelated deaths are neither success nor failure (the patient is considered non-evaluable for efficacy purposes).

  7. Percentage of Evaluable Patients With Any r-HAT Stage, Whose Treatment Outcome is a Failure at 12 Months

    Time frame: 12 months after start of treatment

    Treatment outcome at test of cure (Month 12) is categorized as success or failure. Failure is defined as any of the following: presence of trypanosomes in any body fluid, death related to r-HAT or fexinidazole according to the DSMB, absence of clinical improvement leading to the use of rescue medication, or WBC count in the CSF >20 cells/μL which was unlikely due to causes other than HAT. Unrelated deaths are neither success nor failure (the patient is considered non-evaluable for efficacy purposes).

  8. Number of Participants With Any AE (Including Abnormal Laboratory or ECG Finding if Considered Clinically Significant) Until the End of Hospitalization

    Time frame: 12 to 18 days (between Day 1 and Day 12-18)

    Treatment-emergent AEs during the observation period were recorded from the first intake of fexinidazole (Day 1) until the End-of-Hospitalization Visit (between Day 12 and Day 18).

  9. Number of Participants With Any AE Considered as Serious Until the End of the Follow-up Period

    Time frame: 12 months (between Day 1 and Month 12)

    Treatment-emergent AEs considered as serious were collected from the first intake of fexinidazole (Day 1) until the End-of-Study Visit (Month 12). An AE was considered as serious if resulted in death, was life-threatening, required in-patient hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability or incapacity, was a congenital anomaly or birth defect, or was an important medical event.

  10. Number of Participants With Any AE Considered as Possibly Related to Fexinidazole Until the End of the Follow-up Period

    Time frame: 12 months (between Day 1 and Month 12)

    Treatment-emergent AEs considered as possibly related to fexinidazole were collected from the first intake of fexinidazole (Day 1) until the End-of-Study Visit (Month 12).

Sponsors and collaborators

Lead sponsor

Drugs for Neglected Diseases

Other

Collaborators

  • European and Developing Countries Clinical Trials Partnership (EDCTP)

Registry information

Official study title

Efficacy and Safety of Fexinidazole in Patients With Human African Trypanosomiasis (HAT) Due to Trypanosoma Brucei Rhodesiense: a Multicentre, Open-label Clinical Trial

Important dates

Study start
2019
Primary completion
2021
Study completion
2022
First posted
Jun 4, 2019
Registry last updated
Jan 30, 2025

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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