Clinical Trials

Several clinical trials evaluate rifabutin across Phase 1 and Phase 3 development, comprising both actively recruiting and completed studies sponsored by entities like BioVersys AG and Tourcoing Hospital. These trials assess healthy participants along with conditions such as bacterial infections, staphylococcal prosthetic infections, and renal impairment. Phase 1 research evaluates safety, pharmacokinetics, and pulmonary tissue penetration, whereas Phase 3 research examines therapeutic efficacy in implant-related infections.

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT05684705 Recruiting
Bacterial Infections
BioVersys AG|CW-Research and Management GmbH
2023-09-01 Phase 1
NCT05684718 Completed
Bacterial Infections
BioVersys AG|CRU Hungary Kft
2023-02-01 Phase 1
NCT05537142 Recruiting
Healthy Participants
BioVersys AG|CRU Hungary Kft
2022-09-02 Phase 1
NCT04672525 Recruiting
Prosthetic Infection
Tourcoing Hospital
2021-11-08 Phase 3
NCT05086107 Completed
Renal Impairment
BioVersys AG|CRU Hungary Kft|CRU Hungary Early Phase Unit
2021-10-08 Phase 1

(data from https://clinicaltrials.gov, updated on 2024-05-22)

Check the Rifabutin (LM427) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Compliance for Clinical Use

Mechanism and Biochemical Profile

Rifabutin binds to bacterial DNA-dependent RNA polymerase, thereby blocking the initiation of RNA transcription and inhibiting essential microbial RNA synthesis. This cellular suppression halts bacterial proliferation, providing therapeutic utility against complex bacterial infections and prosthetic joint infections evaluated in clinical trials.

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>).

Note: Technical data last updated: Sep 1, 2026.