Clinical trial

A Multicenter, Open-label, Single Dose, Phase Ⅰ Trial to Evaluate the Safety, Tolerability and Efficacy of BD111 in Patients With HSV-1 Stromal Keratitis in China

Name
BD-HSK-111002-Ⅰ
Description
This Phase I study is intended to evaluate the safety, tolerability, PK/PD profiles and preliminary efficacy via corneal intrastromal administration in patients with herpes simplex virus-1 stromal keratitis (HSK), with a dose exploration of four ascending doses of BD111 (investigative drug product).
Trial arms
Trial start
2023-09-04
Estimated PCD
2025-09-01
Trial end
2025-09-01
Status
Recruiting
Phase
Early phase I
Treatment
BD111 Injection (Investigative New Drug)
BD111 Injection (Investigative New Drug) is a type of lentiviral-like particle, which can simultaneously deliver SpCas9 and gRNA targeting the HSV-1 virus gene, also known as HSV-1-erasing lentiviral particles (HELP).
Arms:
BD111 dose 1 group, BD111 dose 2 group, BD111 dose 3 group, BD111 dose 4 group
Other names:
BD111 Lentivirus-like particles, HSV-1-erasing lentiviral particles, HELP
Triple-drugs therapy of HSV-1 stromal keratitis
Triple-drugs therapy: "Ganciclovir Eye gel+Valacilovir Tablets+Prednisolone Acetate Eye Drops" for 3 weeks.
Arms:
Positive control group
Other names:
Ganciclovir Ophthalmic Gel, Valacyclovir Hydrochloride Tablets, Prednisolone Acetate Ophthalmic Suspension
Size
16
Primary endpoint
Dose-limiting toxicity (DLT)
12 months
Maximum tolerated dose (MTD)
12 months
Recommended Phase 2 dose (RP2D)
12 months
Incidence and characteristics of adverse events (AE) and serious adverse events (SAE) during the study
12 months
Eligibility criteria
Inclusion Criteria: Participants must meet all of the following inclusion criteria to be enrolled in this study 1. Aged 18 to 70 years old; 2. Clinically diagnosed patients with recurrent herpes simplex virus type I stromal keratitis (HSK). Definition of recurrence: the patient had been diagnosed with HSK and received "local antiviral eye drugs and oral antiviral drugs + local glucocorticoid eye drops" for 3 weeks with successful clinical efficacy. Before enrollment, the clinical recurrence of HSK occurred again with symptoms including tearing, photophobia, pain, blurred vision and foreign body sensation, and signs as recurrence of active inflammatory lesions examined by slit lamp; 3. HSV-1 nucleic acid test (qPCR method) positive; 4. No use of other systemic antiviral drugs or corticosteroids within 48 hours before enrollment; 5. No systemic immune diseases; 6. Good eyelid structure and blinking function; 7. Eye structure and function assessment showing potential for visual recovery; 8. No retinal detachment; 9. No history of corneal trauma; 10. The best visual acuity in the fellow eye (BCVA) ≥ 38 (ETDRS); 11. Fertile males or females must use highly effective contraceptive methods, such as, oral contraceptives, intrauterine devices, abstinence, or barrier contraception combined with spermicides, during the trial and continue contraception for 12 months after administration; 12. Participants voluntarily join the study, sign an informed consent form, have good compliance, and cooperate with follow-up visits. Exclusion Criteria: Patients with any of the following conditions cannot be enrolled in this study 1. Active ocular infection caused by other pathogens in the target eye or the fellow eye within 30 days before enrollment, including but not limited to infectious conjunctivitis, keratitis, scleritis, and endophthalmitis; 2. Patients with bilateral viral keratitis 3. Previous corneal transplant surgery in the study eye; 4. Any medicine or food allergic history; 5. Absence of tear film and blinking function; 6. Severe dry eye disease; 7. Ocular surface tumor; 8. Glaucoma; 9. Patients with systemic autoimmune diseases; 10. Signs of systemic infection before enrollment, including fever and receiving antibiotic treatment (systemic infection in this trial is defined as abnormal values in white blood cells, lymphocytes, and neutrophils in routine blood tests); 11. Severe diseases in the major organs including but not limited to cardiovascular, lung, liver, kidney, or other uncontrolled diseases; 12. HIV infection; 13. Pregnant and lactating women (pregnancy in this trial is defined as a positive urine or blood pregnancy test); 14. Participation in other drug or medical device clinical trials at present; 15. Alcohol or drug abuse; 16. Lack of compliance with the trial or the ability to sign an informed consent form; 17. Other situations deemed unsuitable for participation in the trial by the investigator.
Protocol
{'studyType': 'INTERVENTIONAL', 'phases': ['PHASE1'], 'designInfo': {'allocation': 'NON_RANDOMIZED', 'interventionModel': 'SEQUENTIAL', 'primaryPurpose': 'TREATMENT', 'maskingInfo': {'masking': 'NONE'}}, 'enrollmentInfo': {'count': 16, 'type': 'ESTIMATED'}}
Updated at
2024-06-25

1 organization

Organization
Shanghai BDgene