NCT03025789 - Fexinidazole in Human African Trypanosomiasis Due to T.b. Gambiense at Any Stage | Crick

Outcomes

Primary Outcomes

Percentage of Participants Whose Treatment Outcome at Month 18 is a Success

Treatment outcome at Month 18 is categorized as success or failure. Success is defined as a cure, according to the criteria adapted from the World Health Organization (WHO) update of the methodological framework for clinical trials in Sept 2014 (WHO/HTM/NTD/IDM/2015.5). Failure is defined as a relapse, probable relapse, death, use of rescue medication, loss to follow-up, refusal of all post-treatment lumbar puncture, and, in the absence of lumbar puncture at the Month 18 visit, an unfavorable outcome earlier than Month 18, or signs and symptoms evoking a relapse at Month 18. Success rate at Month 18 is defined as the percentage of participants (regardless of g-HAT stage) whose treatment outcome is a success at Month 18. An estimate of the success rate at Month 18 and the 95% exact Clopper-Pearson confidence interval (CI) of the estimate are provided.

Time frame: Between the first intake of fexinidazole (Day 1) and the end of the follow-up period (18 months)

Secondary Outcomes

Percentage of Participants Whose Treatment Outcome at Month 12 is a Success

Treatment outcome at Month 12 is categorized as success or failure. Success is defined as a cure, according to the criteria adapted from the World Health Organization (WHO) update of the methodological framework for clinical trials in Sept 2014 (WHO/HTM/NTD/IDM/2015.5). Failure is defined as a relapse, probable relapse, death, use of rescue medication, loss to follow-up, refusal of all post-treatment lumbar puncture, and, in the absence of lumbar puncture at the Month 12 visit, an unfavorable outcome earlier than Month 12, or signs and symptoms evoking a relapse at Month 12 (data collected at Month 18 are considered, if available). Success rate at Month 12 is defined as the percentage of participants (regardless of g-HAT stage) whose treatment outcome is a success at Month 12. An estimate of the success rate at Month 12 and the 95% exact Clopper-Pearson confidence interval (CI) of the estimate are provided.

Time frame: Between the first intake of fexinidazole (Day 1) and the end of the follow-up period (18 months)

Number of Participants With Any Grade ≥ 3 Treatment-emergent Adverse Events (AEs) Including Laboratory and Hematological Abnormalities (if Considered Clinically Significant)

AE severity is graded according to the National Cancer Institute (NCI) Common Toxicity Criteria for AEs (CTCAE), Version 4.03 and, for certain laboratory parameters, modified CTCAE is used. Grade ≥3 AEs include the following events: Grade 3 events (severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; limiting self care activities of daily living), Grade 4 events (life-threatening consequences; urgent intervention indicated), and Grade 5 events (death related to AE). The observation period extends from the first intake of fexinidazole (Day 1) until the end-of-hospitalization visit (between Day 13 and Day 18) for inpatients and until the end-of-treatment visit (on Day 11) for outpatients.

Time frame: Between the first intake of fexinidazole (Day 1) and the end of the observation period, or the end of the follow-up period (18 months) for non-serious AEs assessed as related to fexinidazole

Number of Participants With Any Treatment-emergent Serious Adverse Event (SAE)

An SAE was defined as any AE that: resulted in death; was life-threatening; required inpatient hospitalisation or prolongation of existing hospitalisation; resulted in persistent or significant disability/incapacity; was a congenital anomaly/birth defect; was an important medical event that was not immediately life-threatening or did not result in death, but that jeopardised the patient's safety or required an intervention to prevent one of the outcomes above. Patients treated on an outpatient basis who required hospitalisation, for whatever reason, underwent the same procedures as patients initially treated in hospital, up to the end of the hospitalisation period. During this period, and up to Day 13 or Day 18, the reasons for hospitalisation were not to be considered to be SAEs solely based on the criterion of hospitalisation, but could be considered to be SAEs based on other criteria.

Time frame: Between the first intake of fexinidazole (Day 1) and the end of the follow-up period (18 months)

Number of Participants With Any Temporary or Permanent Treatment Discontinuation (Inpatient or Outpatient) for Reasons Related to Safety

Number of patients who prematurely discontinued treatment (temporarily or permanently) for reasons related to safety (including overdose).

Time frame: Between the first intake (Day 1) and last intake of fexinidazole (Day 10, or Day 11 if re-administration occurred)

Number of Participants With Any Hospitalization for Reasons Related to Safety (Outpatients Only)

Number of outpatients who are hospitalized for reasons related to safety (including overdose). An outpatient is considered as "hospitalized for reasons related to safety" if he/she is initially planned to be treated as an outpatient but experiences an AE during the treatment period (Day 1 to Day 10) and is hospitalized during the treatment period.

Time frame: Between the first intake (Day 1) and last intake of fexinidazole (Day 10, or Day 11 if re-administration occurred)

Number of Participants With Any Permanent Treatment Discontinuation (Inpatient or Outpatient) for Reasons Related to Safety

Number of patients who prematurely discontinued treatment permanently for reasons related to safety (including overdose).

Time frame: Between the first intake (Day 1) and last intake of fexinidazole (Day 10, or Day 11 if re-administration occurred)

Number of Outpatients Who Were Compliant With the Full Course of the 10-day Treatment

Number of outpatients who completed the full course of the 10-day treatment. Full completion can be either completing the 10-day treatment in the outpatient setting, or starting treatment as an outpatient but finishing treatment at the hospital, for those who have to be hospitalized (for any reason). At Day 11, the participant and/or caregiver have to present the treatment packaging they received at study inclusion, and the investigator has to record if the treatment calendar was fully completed or not.

Time frame: Between the first intake (Day 1) and last intake of fexinidazole (Day 10, or Day 11 if re-administration occurred)

Number of Outpatients Who Were Compliant With the 10-day Treatment Posology, Including Taking the Correct Number of Tablets During the 2 Phases of Treatment and Taking Tablets All at Once Every Day, With Food and Without Any Interruption of Treatment

Number of patients whose response to the question "How did you take your treatment?" is correct, as determined by the study personnel leading the compliance interview at Day 11 (end-of-treatment visit). The expected answer for participants weighing 35 kg or more is: 2 phases. Day 1 to 4 = 3 tablets. Day 5 to 10 = 2 tablets. Tablets to be taken all at once during a meal. The expected answer for participants weighing less than 35 kg is: 2 phases. Day 1 to 4 = 2 tablets. Day 5 to 10 = 1 tablet. Tablets to be taken all at once during a meal. The answer is considered correct if the 4 key messages have been understood (treatment period composed of 2 phases, each with a different number of tablets to be taken; treatment to be taken for 10 days without interruption; tablets to be taken all at once every day; treatment to be taken during a meal)