Belite Bio completes DRAGON II enrollment for tinlarebant
Belite Bio reported that it has completed enrollment of 60 adolescent patients, including 15 in Japan, in its global Phase 2/3 DRAGON II clinical trial of oral drug candidate tinlarebant for Stargardt disease type 1 (STGD1).
Rhea-AI Filing Summary
Belite Bio reported that it has completed enrollment of 60 adolescent patients, including 15 in Japan, in its global Phase 2/3 DRAGON II clinical trial of oral drug candidate tinlarebant for Stargardt disease type 1 (STGD1). DRAGON II is a 24‑month, randomized, double‑masked, placebo‑controlled study in patients aged 12 to 20 across Japan, the United States, and the United Kingdom, with participants assigned 1:1 to tinlarebant or placebo to assess efficacy, safety, and tolerability.
The company says it remains on track to submit a New Drug Application (NDA) to the U.S. FDA for tinlarebant in the first half of 2026. Tinlarebant aims to reduce vitamin A‑based toxins in the retina by lowering serum retinol binding protein 4, and has received multiple expedited and orphan designations in the U.S., Europe, and Japan for STGD1. Belite Bio notes it has already completed a separate Phase 3 DRAGON trial in adolescent STGD1 and is also running a Phase 3 PHOENIX trial in geographic atrophy.
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Insights
Belite Bio has fully enrolled its DRAGON II STGD1 trial and reaffirmed its NDA timing for tinlarebant.
Completing enrollment of 60 adolescents in the Phase 2/3 DRAGON II trial marks a key operational step for Belite Bio as it advances tinlarebant in Stargardt disease type 1. The study’s 24‑month, randomized, double‑masked, placebo‑controlled design in patients aged 12 to 20 across Japan, the U.S., and the U.K. is intended to generate efficacy, safety, and tolerability data that can support regulatory review, including alignment with Japan’s PMDA requirements.
The company reiterates that it remains on track to submit a U.S. NDA for tinlarebant in the first half of 2026, tying DRAGON II to a broader registration strategy alongside a completed Phase 3 DRAGON trial in adolescent STGD1 and the ongoing Phase 3 PHOENIX trial in geographic atrophy. Tinlarebant’s mechanism—lowering serum RBP4 to reduce vitamin A‑derived bisretinoids—plus its Breakthrough Therapy, Fast Track, Rare Pediatric Disease, Orphan Drug, and Sakigake designations underscore regulatory interest in this pathway, though eventual outcomes still depend on the forthcoming DRAGON II and PHOENIX data.
FAQ
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What did Belite Bio (BLTE) announce in its latest 6-K filing?
Belite Bio announced that it has completed enrollment of 60 adolescent subjects, including 15 in Japan, in its global Phase 2/3 DRAGON II clinical trial of tinlarebant for Stargardt disease type 1 (STGD1).
What is the design of Belite Bios DRAGON II clinical trial for tinlarebant?
DRAGON II is described as a 24‑month, randomized, double-masked, placebo-controlled Phase 2/3 study in adolescent STGD1 patients aged 12 to 20 in Japan, the United States, and the United Kingdom, with participants randomized 1:1 to receive tinlarebant or placebo.
When does Belite Bio plan to submit an NDA for tinlarebant?
Belite Bio states that it remains on track to submit a New Drug Application (NDA) to the FDA for tinlarebant in the first half of 2026.
What regulatory designations has tinlarebant received for Stargardt disease?
Tinlarebant has received Breakthrough Therapy, Fast Track, and Rare Pediatric Disease designations in the U.S., Orphan Drug designation in the U.S., Europe, and Japan, and Sakigake designation in Japan, all for the treatment of STGD1.
How does tinlarebant work in Stargardt disease and geographic atrophy?
Tinlarebant is an oral therapy intended to reduce accumulation of vitamin A-based toxins (bisretinoids) by lowering serum retinol binding protein 4 (RBP4), the carrier for retinol from the liver to the eye. By limiting retinol entering the eye, it aims to reduce bisretinoid formation in STGD1 and potentially slow progression in geographic atrophy.
What other clinical trials is Belite Bio running with tinlarebant?
Belite Bio notes that it has completed a Phase 3 DRAGON trial in adolescent STGD1 subjects and is conducting a Phase 3 PHOENIX trial in subjects with geographic atrophy, alongside the Phase 2/3 DRAGON II trial in adolescent STGD1.
AI-generated analysis. How Rhea-AI works. Not financial advice.
