ClinicalTrials.gg
RecruitingNCT06936787Updated Apr 27, 2025

An Open-label, Dose-ascending Study of IGT001 for Retinitis Pigmentosa

A Phase 1 interventional study of IGT001 in Retinitis Pigmentosa, sponsored by Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine. Recruiting at 1 site in China. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-04-27.

Sponsored by Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Dec 2025, 10 months ago, but the record still lists the study as recruiting.

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Phase
Phase 1
Study type
Interventional
Enrollment
21
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 17 studies in Retinitis Pigmentosa with a site in China — 12 open to participants now, 13 under way, 1 of them phase 3. Retinitis Pigmentosa · China.

Planned enrollment
9th of 15
21 · median 25
Started
2025
with 3 others
Phase 1
8 of 17
6 open now
Primary completion
2025-12
later than 4 of 12 live
Registered
13th of 17
by date
Lead sponsor
1 of 17
Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine

Among the 17 studies in Retinitis Pigmentosa with a site in China, this one is the 9th largest by planned enrollment of the 15 interventional ones that give a count, is one of 4 that started in 2025, is one of 8 in phase 1, reaches primary completion later than 4 of the 12 other live ones, and was the 13th registered.

Retinitis Pigmentosa

278 studies on the registry are indexed under Retinitis Pigmentosa; 72 are open to participants now.

Browse Retinitis Pigmentosa studies →

Open to participants now

12 of the 17 studies in Retinitis Pigmentosa with a site in China are open now. Recruiting first, the newest first:

6 more — sign in →

All 12 open studies →

A study can be open while its sites in China have not opened yet or have stopped. Only those recruiting at a site in China →

Who these studies take

Of the 49 Retinitis Pigmentosa studies recruiting now, 37 (76%) set no upper age limit and 7 (14%) stop at 75 or younger; 16 take children under 18; 10 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 17 studies in Retinitis Pigmentosa with a site in China, or all of them as a file.
02

Study summary

This is an investigator-initiated, prospective, single-center, open-label, single ascending dose clinical study. The study aims to evaluate the safety, tolerability, and potential efficacy of intravitreal injection of IGT001 in patients with retinitis pigmentosa across different dose groups.

IGT001 is administered as a single intravitreal injection in the study eye under local anesthesia. Participants will be discharged on the day of treatment, provided that their visual acuity and intraocular pressure are close to baseline levels, and no clinically significant abnormalities in vital signs are observed compared to pre-injection values. The decision for discharge will be determined by the investigator's assessment.

Read the detailed description

The study's dose groups are divided based on concentration into four cohorts: the low-concentration cohort (0.5 × 10⁶ hRP-50 µL), the medium-concentration cohort (1.0 × 10⁶ hRP-50 µL), the high-concentration cohort (2.0 × 10⁶ hRP-50 µL), and the target-concentration cohort.

Participants in the four cohorts will undergo a one-year follow-up as specified in the protocol. They will also be encouraged to participate in an additional one-year follow-up study to assess the long-term safety and tolerability of IGT001 after completing the main study.

03

Conditions studied

  • Retinitis Pigmentosa

Browse trials for

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Adults aged ≥ 18 years at the time of signing the form, regardless of gender
  • Clinical diagnosis of retinitis pigmentosa based on medical history and specialized examinations
  • Willing to undergo genetic mutation testing, with results confirming known genetic mutations associated with hereditary retinal degeneration and related diseases
  • Willing to provide blood samples for HLA typing
  • Blood cell counts (hematocrit, , white blood cells, ) within the normal range, or outside the normal range but deemed clinically insignificant by the investigator
  • Negative screening results for infectious diseases (, , and ), with no history of drug abuse (confirmed by negative urine test)
  • Female participants of (defined as those who have not undergone surgical sterilization or have not been for at least one year) must undergo a urine pregnancy test at the time of admission (before injection), and the result must be negative.Female or male participants of childbearing potential must use medically approved measures, such as abstinence, intrauterine devices (IUDs), or dual barrier methods (e.g., condom plus diaphragm), for at least 30 days before treatment and at least one year after treatment

Exclusion criteria

Exclusion Criteria:

  • As determined by the investigator, the study eye has concurrent conditions in addition to retinitis pigmentosa that:

    1. Affect central vision, or
    2. Increase the safety risk for the participant, or
    3. Impact efficacy or safety assessments or data collection, or
    4. Require surgical or medical intervention due to ocular diseases or history, such as retinal detachment or a history of retinal detachment, wet age-related macular degeneration, diabetic macular edema, retinal vein occlusion, uveitis, optic nerve disease, a history of glaucoma or ocular hypertension, severe or grade 3 non-proliferative diabetic retinopathy, proliferative diabetic retinopathy, significant media opacity, or an inability to achieve adequate pupil dilation
  • The study eye cannot rule out the differential diagnosis of pseudoretinitis pigmentosa or cancer-associated retinopathies.
  • History of malignant tumors (except for patients in remission for more than five years and those with basal cell carcinoma of the skin), end-stage major organ diseases (including heart failure, severe arrhythmias, stroke or , or conditions, severe mental disorders, epilepsy, , renal failure, or any chronic systemic disease requiring continuous systemic , anticoagulants, or immunosuppressive therapy)
  • History of glaucoma in either eye or a glaucoma diagnosis at screening
  • History of ocular hypertension in either eye or a diagnosis of ocular hypertension at screening
  • Intraocular pressure (IOP) > 21 mmHg in either eye or current use of any intraocular pressure-lowering medications
  • History of allergy, intolerance, or adverse reactions to any procedures involved in the study, including but not limited to a history of allergy/adverse reactions to contrast agents, needle phobia, or hemophobia
  • History of ocular surface damage or drug-induced toxicity from medications such as deferoxamine, chloroquine/hydroxychloroquine (Plaquenil), tamoxifen, phenothiazines, or ethambutol
  • History of allergy or adverse reactions to products containing dimethyl sulfoxide (DMSO)
  • History of allergy to gentamicin
  • Inability or unwillingness to comply with any study-related procedures, including genetic testing, blood sample collection, clinical examinations, or procedures requiring pupil dilation, topical anesthesia, or contrast agent injection
Terms in these criteria, in plain language(14)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

TIA (transient ischaemic attack)

A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.

Stroke symptoms need emergency care at once, even if they go away.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

COPD

Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
21 participants (estimated)

Study arms

  • Experimental
    IGT001

    Drug: IGT001

Interventions

  • DrugIGT001

    Study drugs

06

What researchers measure

Primary outcomes

  1. AE or SAE

    The incidence of adverse events (AE) or serious adverse events (SAE)

    Time frame: 1 year

  2. The incidence of DLT

    DLT

    Time frame: 28 days

07

Study locations

1 of 1 sites recruiting
  • Shanghai General Hospital, Shanghai Jiao Tong University
    Shanghai, 200080, China
    Recruiting
    • Xiaodong Sun · Contact+86-02163240090
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Apr 2025; primary completion for Dec 2025, 8 months later.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 8, 2025
First posted
Apr 20, 2025
StartEst.
Apr 20, 2025
Primary completionEst.
Dec 20, 2025
CompletionEst.
Dec 20, 2027
Last update
Apr 27, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 27, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06936787
Responsible party
Xiaodong Sun (Clinical Professor, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine) — Principal investigator
First posted
Apr 20, 2025
Start date
Apr 20, 2025 (estimated)
Primary completion
Dec 20, 2025 (estimated)
Completion
Dec 20, 2027 (estimated)
Last update
Apr 27, 2025

Study contacts

Xiao Dong Sun, PhD
Contact
drsunxiaodong@126.com
+86 18017317575

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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