Gene fix for rare immune disease: can it stop deadly infections?
NCT ID NCT03645486
First seen Jun 26, 2026 · Last updated Aug 27, 2026 · Updated 3 times
Summary
This trial tests a gene therapy for chronic granulomatous disease (CGD), a rare immune disorder that leaves patients vulnerable to severe infections. Ten patients will receive their own stem cells modified with a lentivirus to correct the faulty gene. The goal is to restore immune function and reduce infection frequency, with safety monitored for 15 years.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- lentiviral gene therapy (TYF-CGD-modified stem cells)
- What this could lead to
- If successful, this could provide a long-term way to control CGD by fixing the faulty gene, reducing severe infections and hospitalizations.
- What could go wrong
- This is a very early, small trial (10 people) testing safety and effectiveness. Gene therapy carries risks like immune reactions or the treatment not working as expected.
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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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- 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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Jul 2027
An estimate. Start dates often move.
- Expected to finish
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Dec 2029
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
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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Children (under 18), adults (18 to 64) and older adults (65 and over)
- 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.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. CGD patients \>= 0 years of age 2. Molecular diagnosis confirmed by DNA sequencing and supported by laboratory evidence for absent or significantly reduced biochemical activities of the NADPH-oxidase 3. Karnofsky-Index \> =70% 4. At least one prior, ongoing or refractory severe infection and/or inflammatory complications requiring hospitalization despite drug intervention 5. Written informed consent for adult patient, and assent for pediatric subjects seven years or older Exclusion Criteria: 1. Contraindication for leukapheresis (anaemia Hb \<8g/dl, cardiovascular instability, severe coagulopathy) or for administration of conditioning medication 2. Female patients who are pregnant or lactating as determined by history and/or positive pregnancy test
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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 places running it
1 site. The list below names each one and where it is.
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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.
Contacts and locations
Locations
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Shenzhen Geno-immune Medical Institute
Shenzhen, Guangdong, 518000, China
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can a new antibody make stem cell transplants safer for CGD patients?
- Newborn screening study aims to catch rare diseases at birth
- Groundbreaking gene therapy aims to fix immune system in rare disease
- New hope for CGD: stem cell transplant trial aims for a cure
- Milder stem cell transplant shows promise for kids with immune disorders
- Scientists dig into immune cells to unlock lung disease mysteries