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European Randomised Clinical Trial on mPOX Infection (EPOXI)

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2022-501979-10-00
Enrollment
335
Registered
2022-12-19
Start date
2024-08-08
Completion date
2025-07-14
Last updated
2025-06-26

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

Conditions

Monkeypox

Brief summary

Time (days) to complete lesion resolution, counted from start of therapy, assessed at day 28 after randomisation and defined as the first day on which all lesions are completely healed with a new fresh layer of skin. For skin lesions, typically this means the lesion has scabbed, desquamated and new layer of skin formed (if a scar present, this is still defined as complete lesion resolution). For mucosal lesions, the phase of scabbing and desquamation is absent, and healing with new layer of skin

Detailed description

Time (days) to active lesion resolution, defined as the first day on which all skin lesions are scabbed or desquamated (and mucosal lesions healed), with follow-up up to 28 days after randomisation., Status of the lesions on day 7, 14, 21 and 28 according to an ordinal scale. The ordinal scale is a) all lesions completely resolved (all scabs dropped off and intact skin remains underneath, and all mucosal lesions healed), b) active lesions resolved (all skin lesions scabbed or desquamated, but not fully resolved), c) active lesions persist but no new lesions in last 24 hours, d) new lesion(s) in last 24 hours., Time to resolution of symptoms. Symptoms are assessed by self-assessment and include fatigue, malaise, nausea, vomiting, abdominal pain, anorexia, cough, dysphagia, odynophagia, fever, headache, oral pain, pain with urination, rectal/anal pain. Signs will be evaluated at study visits only, including lymphadenopathy and proctitis, and are not included in the evaluation of symptoms., Occurrence of a negative monkeypox PCR of skin or mucosa swab, assessed for the most active skin or mucosa lesion at days 7, 14 and 28., Persistence of scars and skin discoloration, assessed on day 90 (and day 60 if the visit is live)., Change from baseline in quality of life on day 7, 14, 28 and 90 by the Dermatology Quality of Life Index (DQLI), All-cause mortality within 28 days and within 90 days, applicable to all patients, Time to complication, all-cause admission to hospital or all-cause death, within 28 days and 90 days, applicable to outpatients only., Frequency of AEs, SAEs and SUSARs for the specific therapeutic, within the first 28 days, but also assessed during the total follow-up (up to day 90), In a subset of patients with pain at lesion site (or proctitis) at baseline: Resolution of pain, by measuring (a) time to resolution of pain assessed by the Numeric Rating Scale (NRS) for pain (Karcioglu 2018), (b) time to cessation of the use of analgesic medication, defined as time to consistently reporting no use of analgesia for monkeypox-related lesions, up to 90 days after randomisation. (c) anal pain on days 7, 14, 28, 60 and 90 assessed by the Health Related Symptom Index

Interventions

DRUGPlacebo capsules are identical to active tpoxx capsules
DRUGand will be relabelled identical to the study drug. placebo capsules will have the same composition
DRUGmagnesium stearate and purified water
DRUGin an opaque orange/black hard gelatin capsule shell size 0.).

Sponsors

University Medical Center Utrecht
Lead SponsorOTHER

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Time (days) to complete lesion resolution, counted from start of therapy, assessed at day 28 after randomisation and defined as the first day on which all lesions are completely healed with a new fresh layer of skin. For skin lesions, typically this means the lesion has scabbed, desquamated and new layer of skin formed (if a scar present, this is still defined as complete lesion resolution). For mucosal lesions, the phase of scabbing and desquamation is absent, and healing with new layer of skin

Secondary

MeasureTime frame
Time (days) to active lesion resolution, defined as the first day on which all skin lesions are scabbed or desquamated (and mucosal lesions healed), with follow-up up to 28 days after randomisation., Status of the lesions on day 7, 14, 21 and 28 according to an ordinal scale. The ordinal scale is a) all lesions completely resolved (all scabs dropped off and intact skin remains underneath, and all mucosal lesions healed), b) active lesions resolved (all skin lesions scabbed or desquamated, but not fully resolved), c) active lesions persist but no new lesions in last 24 hours, d) new lesion(s) in last 24 hours., Time to resolution of symptoms. Symptoms are assessed by self-assessment and include fatigue, malaise, nausea, vomiting, abdominal pain, anorexia, cough, dysphagia, odynophagia, fever, headache, oral pain, pain with urination, rectal/anal pain. Signs will be evaluated at study visits only, including lymphadenopathy and proctitis, and are not included in the evaluation of symptoms

Countries

Belgium, France, Germany, Italy, Netherlands, Norway, Portugal, Spain

Outcome results

None listed

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