ACRSAclaris Therapeutics, Inc.

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IntactLast material event Aug 6, 2026 · Updated Oct 29, 2026

ATI-052 shows early patient activity; EoE leads development as bosakitug readout approaches

Aclaris Therapeutics is a clinical-stage company developing antibodies and oral drugs for immune and inflammatory diseases, led by ATI-052, now prioritized for eosinophilic esophagitis after early atopic dermatitis and asthma data; none is approved.

Aclaris's case rests on ATI-052 delivering durable patient benefit. Early skin and asthma activity supports development, but small comparator groups limit certainty; EoE now leads development. Bosakitug and oral programs offer additional opportunities. Cash and securities were $170.6 million at June 30, 2026; subsequent share sales raised $40.2 million gross. A new offering could add approximately $46.7 million net, subject to closing. Management's prior funding guidance through the end of 2028 excludes additional financing or business development.

Thesis checklist

0 risks need attention

Select a row for evidence
ATI-052 improves atopic dermatitis versus placeboSupportedNext: Larger controlled AD results showing reproducible skin improvement and durability with maintenance dosing.

Why it is in this state

The evidence, what would weaken it and the source filing

ATI-052 shows activity in asthmaSupportedNext: Clarification of asthma's place in the staged program and plans to assess repeat-dose efficacy.

Why it is in this state

The evidence, what would weaken it and the source filing

Bosakitug Phase 2 reads out in atopic dermatitisAwaiting evidenceNext: Phase 2 AD topline results in Q4 2026.

Why it is in this state

The evidence, what would weaken it and the source filing

Cash funds the pipeline through 2028SupportedNext: Confirmation of offering completion, followed by updated cash use and funding guidance for staged development.

Why it is in this state

The evidence, what would weaken it and the source filing

Next decision point

Bosakitug's controlled AD readout

Tests: Bosakitug Phase 2 reads out in atopic dermatitis

Q4 2026

Does bosakitug show convincing benefit over placebo in AD with acceptable safety?

Strong, inconclusive and weak outcomes

What to look for in the result and how each would move the checklist

Questions to investigate

History

Price and material events

Select an event marker to read the update below. Marker colors show Thesis status.

IntactCurrentClinical
-4.3%Aug 6, 2026

ATI-052 shows early patient activity; EoE leads development as bosakitug readout approaches

About this history: every entry shows when the Thesis moved and what it said. The reasoning behind each move (the evidence, the analysis and the source filing) and the earnings write-ups are part of a subscription.

Pipeline

Immuno-inflammatory diseases
ATI-9494 · 2 upcoming
IND Submission
Q4 2026
Phase 1 Study Initiation
1Q 2027
Atopic dermatitis· moderate to severe
Bosakitug · 1 upcoming
Phase 2 Data: ToplineADMIRATION
Q4 2026
Asthma
ATI-052 · 1 upcoming · 1 completed
Phase 2b Study Initiation
Q4 2026
Lichen planus
Modzatinib · 1 upcoming · 1 completed
Phase 2b Study Initiation
Q4 2026
Eosinophilic esophagitis
ATI-052 · 1 upcoming
Phase 2b Study Initiation
Early 2027
Lichen planus· oral/mucosal
Modzatinib · 1 upcoming
Phase 2b Data: Topline
2027
Atopic dermatitis
ATI-052 · 1 completed
Phase 1b Data: Topline
Reported Nov 5, 2026
Healthy volunteers
ATI-052 · 1 completed
Phase 1a Data: Topline
Reported May 7, 2026
Immuno-inflammatory diseases
ATI-052 · 1 completed
FDA IND Clearance
Reported Aug 7, 2025
Atopic dermatitis
ATI-2138 · 1 completed
Phase 2a Data: Topline
Reported Jul 29, 2025

Dates, trials and completed outcomes are open to everyone. What each upcoming milestone hinges on is part of a subscription.

Quick answers

Is the Aclaris Therapeutics (ACRS) investment thesis intact?
Yes. Readouts currently rates the Aclaris Therapeutics Thesis Intact. ATI-052 shows early patient activity; EoE leads development as bosakitug readout approaches.
What is the next catalyst for Aclaris Therapeutics (ACRS)?
The next dated event is Phase 2 topline results (ADMIRATION) for Bosakitug, expected Q4 2026, as stated by the company. Also ahead: Phase 2b start for ATI-052, expected Q4 2026.
How long will Aclaris Therapeutics' cash last?
Aclaris Therapeutics has said its cash will fund operations through the first half of 2029 (guidance as of November 5, 2026). It reported $205 million in cash as of September 30, 2026.

Competitive landscape

18 peers tracked

For informational purposes only—not investment advice. Always conduct your own research before making investment decisions.

Financial snapshot

Dates and calculation details

Cash: Market-data provider estimate; measurement period unavailable.

Debt: Market-data provider estimate; a complete comparable filing balance is unavailable.

Quarterly burn: Estimated from trailing free cash flow; measurement period unavailable.

Net cash and estimated runway require verified matching measurement periods. Missing debt components are not assumed to be zero.

Runway: No underlying guidance available.