Last reviewed 2026-05-18 · How we verify

ATSN-101 Diluent Solution

Atsena Therapeutics Inc. · Phase 1 active Small molecule Quality 10/100

ATSN-101 Diluent Solution is a Small molecule drug developed by Atsena Therapeutics Inc.. It is currently in Phase 1 development.

Likelihood of approval

9.6% vs 9.6% industry baseline

If approved by FDA: likely 2033–2036

Steps remaining: Phase 2 → Phase 3 → NDA/BLA submission

Confidence: Medium

Why this estimate

Baseline phase 1 → approval rate +9.6pp
Industry-wide phase 1 drugs reach approval ~9.6% of the time (BIO/Informa 2023 industry benchmark across all therapeutic areas).

Predicted approval windows by jurisdiction (conditional on FDA approval)

Regulator	Country	Likely year	Lag vs FDA
FDA	US	2033–2036	—
EMA	EU	2034–2037	+0.7 yr
MHRA	GB	2034–2037	+0.7 yr
Health Canada	CA	2034–2038	+0.9 yr
TGA	AU	2034–2038	+1.2 yr
PMDA	JP	2034–2038	+1.5 yr
NMPA	CN	2035–2039	+2.3 yr
MFDS	KR	2034–2038	+1.4 yr
CDSCO	IN	2034–2039	+1.8 yr
ANVISA	BR	2035–2039	+2.3 yr

Hover any row for the lag rationale. Lag estimates are reduced when the drug has FDA Breakthrough or EMA PRIME designation (sponsors file globally in parallel).

Estimate based on the BIO/Informa industry phase transition rates plus per-drug modifiers for therapeutic area, sponsor type, FDA designations, mechanism, and trial design. Per-jurisdiction lags from Tufts CSDD international approval studies. Not investment, clinical or regulatory advice. Methodology: /methodology#likelihood.

At a glance

Generic name	ATSN-101 Diluent Solution
Sponsor	Atsena Therapeutics Inc.
Modality	Small molecule
Phase	Phase 1

Approved indications

Common side effects

No common side effects on file.

Key clinical trials

Study of Subretinally Injected ATSN-101 Administered in Patients With Leber Congenital Amaurosis Caused by Biallelic Mutations in GUCY2D (PHASE1, PHASE2)

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

Source	Used for
ClinicalTrials.gov	Trial enrolment, design, endpoints, results

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape:

ATSN-101 Diluent Solution CI brief — competitive landscape report
ATSN-101 Diluent Solution updates RSS · CI watch RSS
Atsena Therapeutics Inc. portfolio CI

Frequently asked questions about ATSN-101 Diluent Solution

What is ATSN-101 Diluent Solution?

ATSN-101 Diluent Solution is a Small molecule drug developed by Atsena Therapeutics Inc..

Who makes ATSN-101 Diluent Solution?

ATSN-101 Diluent Solution is developed by Atsena Therapeutics Inc. (see full Atsena Therapeutics Inc. pipeline at /company/atsena-therapeutics-inc).

What development phase is ATSN-101 Diluent Solution in?

ATSN-101 Diluent Solution is in Phase 1.

Manufacturer: Atsena Therapeutics Inc. — full pipeline

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing