A Phase 1b, Double-Blind Study to Investigate Safety, Tolerability, Pharmacokinetics, Efficacy, and Pharmacodynamics of Single Dose of ATI-052 in Participants with Mild to Moderate Asthma

2025-524987-39-00 Protocol ATI-052-ASTH-101 Human pharmacology (Phase I) - Other Ongoing, recruiting

Start 4 May 2026 · Status Ongoing, recruiting · 1 EU/EEA countries · 2 sites · Protocol ATI-052-ASTH-101

Overview

Sponsor-declared trial summary

Phase Human pharmacology (Phase I) - Other
Status Ongoing, recruiting
Participants planned 16
Countries 1
Sites 2

Mild to Moderate Asthma

Key facts

Sponsor
Aclaris Therapeutics Inc.
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Respiratory Tract Diseases [C08]
Trial duration
4 May 2026 → ongoing
Decision date (initial)
2026-04-16
Transition trial
No
Low-intervention
No
Rare-disease indication
No
Vulnerable population
Yes

Trial design

CTIS Part I — objectives, methods, condition coding

Conditions and MedDRA coding

Mild to Moderate Asthma

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Aclaris Therapeutics Inc.

Sponsor organisation
Aclaris Therapeutics Inc.
Address
701 Lee Road Suite 103
City
Chesterbrook
Postcode
19087-5612
Country
United States

Scientific contact point

Organisation
Aclaris Therapeutics Inc.
Contact name
Aclaris Lead Clinical Development Physician

Public contact point

Organisation
Aclaris Therapeutics Inc.
Contact name
Aclaris Clinical Trial Information Desk

Locations

1 EU/EEA country · 2 investigational sites

By country

CountryMS statusPlanned subjectsSites
Germany Ongoing, recruiting 10 2
Rest of world
United States
6

Investigational sites

Germany

2 sites · Ongoing, recruiting
Velocity Clinical Research Germany GmbH
Velocity Clinical Research Lübeck, Sandstrasse 18, Innenstadt, Luebeck
PAREXEL International GmbH
Early Phase Clinical Unit Berlin, Klinikum Westend Haus 31, Spandauer Damm 130, Berlin

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
Germany 2026-05-04 2026-05-04

Application history

2 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2026-01-23 Germany Acceptable
2026-04-14
2026-04-16
2 SUBSTANTIAL MODIFICATION SM-1 2026-05-29 Germany Acceptable 2026-06-03