New drug SLN12140 aims to control PNH in early trial
NCT ID NCT07387302
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This phase II trial tests the drug SLN12140 in 10 adults with PNH who have never taken complement inhibitors. The goal is to see if SLN12140 can reduce red blood cell destruction (measured by LDH levels) and improve hemoglobin. Participants receive different doses over 12 to 64 weeks, and the study monitors safety and how the drug works in the body.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- SLN12140
- What this could lead to
- If it works, this could point toward a new treatment option for people with PNH to control red blood cell destruction without needing existing complement inhibitors.
- What could go wrong
- This is a very small early-phase trial with only 10 participants, so results may not apply to everyone. The drug may not work as hoped or could have unexpected side effects.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 10 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Feb 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2027
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 80 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Adult complement inhibitor naïve PNH patients (age\>=18), which is confirmed by flow cytometry evaluation * Must be vaccinated against meningococcal vaccine and pneumococcal vaccine Exclusion Criteria: * Significant bone marrow failure * Meningitidis infection or unresolved meningococcal disease * Other significant systemic diseases that might have impact on efficacy and safety assessment
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
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Other studies related to the condition(s) this trial covers.
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