Multiple clinical trials spanning Phase 1 through Phase 3 evaluate fexinidazole for neglected tropical infectious diseases, primarily human African trypanosomiasis and Chagas disease, as well as pharmacokinetic profiles in healthy and hepatic-impaired cohorts. Sponsored independently or jointly by entities such as Sanofi and the Drugs for Neglected Diseases initiative, these studies evaluate safety, dosing regimens, and food effects. While most trials have reached completed status, select studies in challenging environments were ultimately withdrawn or terminated.
| NCT Number | Recruitment | Conditions | Sponsor/Collaborators | Start Date | Phases |
|---|---|---|---|---|---|
| NCT05645822 | Withdrawn | Sleeping Sickness|Trypanosomiasis African |
Institute of Tropical Medicine Belgium|Ministry of Public Health Democratic Republic of the Congo|Institut National de Recherche Biomédicale. Kinshasa République Démocratique du Congo|SANRU Asbl Soins de Santé Primaires en Milieu Rural République Démocratique du Congo|Drugs for Neglected Diseases |
2024-01-01 | -- |
| NCT05607173 | COMPLETED | Hepatic Function Abnormal |
Sanofi |
2023-01-18 | PHASE1 |
| NCT05607173 | Completed | Hepatic Function Abnormal |
Sanofi |
2023-01-18 | Phase 1 |
| NCT03974178 | COMPLETED | Trypanosomiasis, African; Sleeping Sickness; Trypanosoma Brucei Rhodesiense; Infection |
Drugs for Neglected Diseases |
2019-09-29 | PHASE2; PHASE3 |
| NCT03025789 | COMPLETED | Trypanosomiasis, African; Sleeping Sickness; Trypanosomiasis; Gambian |
Drugs for Neglected Diseases |
2016-11-10 | PHASE3 |
| NCT03587766 | COMPLETED | Chagas' Disease (Chronic) Nos |
Drugs for Neglected Diseases |
2017-11-13 | PHASE2 |
| NCT03587766 | Completed | Chagas'' Disease (Chronic) Nos |
Drugs for Neglected Diseases |
2017-11-13 | Phase 2 |
| NCT02184689 | COMPLETED | Human African Trypanosomiasis (HAT) |
Drugs for Neglected Diseases |
2014-05-03 | PHASE2; PHASE3 |
| NCT01685827 | COMPLETED | Human African Trypanosomiasis (HAT); Sleeping Sickness |
Drugs for Neglected Diseases |
2012-10 | PHASE2; PHASE3 |
| NCT03025789 | Completed | Trypanosomiasis African|Sleeping Sickness|Trypanosomiasis; Gambian |
Drugs for Neglected Diseases|Sanofi |
2016-11-10 | Phase 3 |
| NCT02169557 | COMPLETED | Human African Trypanosomiasis (HAT) |
Drugs for Neglected Diseases |
2014-04-30 | PHASE2; PHASE3 |
| NCT02498782 | UNKNOWN | Chagas Disease; Trypanosomiasis, South American; South American Trypanosomiasis; Disease, Chagas |
Drugs for Neglected Diseases |
2014-07 | PHASE2 |
| NCT02571062 | COMPLETED | Trypanosomiasis, African |
Drugs for Neglected Diseases |
2015-03 | PHASE1 |
| NCT02571062 | Completed | Trypanosomiasis African |
Drugs for Neglected Diseases |
2015-03 | Phase 1 |
| NCT01980199 | TERMINATED | Visceral Leishmaniasis |
Drugs for Neglected Diseases |
2013-11 | PHASE2 |
| NCT01483170 | TERMINATED | Trypanosomiasis, African |
Drugs for Neglected Diseases |
2011-09 | PHASE1 |
| NCT01340157 | COMPLETED | PK in Healthy Volunteers |
Drugs for Neglected Diseases |
2011-02 | PHASE1 |
| NCT01340157 | Completed | PK in Healthy Volunteers |
Drugs for Neglected Diseases|Sanofi |
2011-02 | Phase 1 |
| NCT00982904 | COMPLETED | Human African Trypanosomiasis |
Drugs for Neglected Diseases |
2009-09 | PHASE1 |
(data from https://clinicaltrials.gov, updated on 2024-05-22)
Mechanism and Biochemical Profile
Appendix RUO and cGMP Quality Standards
| Quality Dimension | RUO (Research Use Only) | cGMP (Current Good Manufacturing Practice) |
|---|---|---|
| Clinical Applicability | Prohibited in human clinical trials or medical diagnostics. | Mandatory for human clinical trials (Phase I–III) and therapies. |
| Regulatory Status | Non-regulated grade; exempt from drug manufacturing laws. | Legally enforced by health authorities (e.g., FDA, EMA, NMPA). |
| Facility Environment | Unclassified analytical or research laboratories. | Validated Cleanrooms (ISO Class 5–8) with continuous monitoring. |
| Quality Control | Basic purity and activity testing. | Rigorous safety release testing (Sterility, Endotoxin, Mycoplasma). |
| Process Validation | Basic equipment calibration; no process validation required. | Full qualification (IQ/OQ/PQ) and complete batch records. |
| Quality Assurance | Vendor self-declared without required formal QMS. | Mandatory QA/QC unit, Change Control, CAPA, and vendor audits. |
| Regulatory Impact | High risk of IND rejection if used as a critical raw material. | Required for IND/NDA filings, supported by Drug Master Files (DMF). |
Footnotes
Regulatory Note: Governed by FDA (21 CFR Parts 210/211/312), EMA (EudraLex Vol 4), ICH Guidelines (E6/Q7/Q9/Q10), and compendial standards (USP <71>/<85>/<1043>).