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A Phase III, randomised, double-blind, placebo-controlled, parallel-group, pivotal trial to assess the efficacy and safety of sonlicromanol in adult subjects with a genetically confirmed mitochondrial DNA tRNALeu(UUR) m.3243A>G variant.

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2025-522361-30-00
Acronym
KH176-301
Enrollment
127
Registered
2025-12-19
Start date
Unknown
Completion date
Unknown
Last updated
2026-01-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

MELAS, Mitochondrial DNA 3243A>G variant and Associated Phenotypes (MIDD, Multi System Phenotypes, Primary Mitochondrial Disease

Brief summary

Change from baseline at Week 52 in the: 1. NeuroQoL Fatigue SF v1 score, Change from baseline at Week 52 in the: 2. Duration of the 5 Times Sit-to-Stand Test (5xSST)

Detailed description

Change from baseline at Week 52 in the: 1. 36-Item Short Form Survey (SF-36): sub-score physical functioning, Change from baseline at Week 52 in the: 2. Fatigue Severity Scale (FSS), Change from baseline at Week 52 in the: 3. Beck Depression Inventory (BDIII) total score, Change from baseline at Week 52 in the: 4. Patient reported global impression of severity (PGI-S), Change from baseline at Week 52 in the: 5. Clinician reported global impression of severity (CGI-S)

Interventions

DRUGMatching placebo (containing microcrystalline cellulose (MCC))
DRUGsonlicromanol.HCl

Sponsors

Khondrion B.V.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to 64 Years

Design outcomes

Primary

MeasureTime frame
Change from baseline at Week 52 in the: 1. NeuroQoL Fatigue SF v1 score, Change from baseline at Week 52 in the: 2. Duration of the 5 Times Sit-to-Stand Test (5xSST)

Secondary

MeasureTime frame
Change from baseline at Week 52 in the: 1. 36-Item Short Form Survey (SF-36): sub-score physical functioning, Change from baseline at Week 52 in the: 2. Fatigue Severity Scale (FSS), Change from baseline at Week 52 in the: 3. Beck Depression Inventory (BDIII) total score, Change from baseline at Week 52 in the: 4. Patient reported global impression of severity (PGI-S), Change from baseline at Week 52 in the: 5. Clinician reported global impression of severity (CGI-S)

Countries

Denmark, France, Germany, Italy, Netherlands

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026