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ALTO-101

Phase 2

Schizophrenia | Small molecule | Neurology |Alto Neuroscience, Inc.|Last Updated: Dec 26, 2025

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment82

FDA Designations

FAST_TRACK

Clinical trial landscape

ALTO-101 · 1 trial · 2 indications

Phase 2 1
NCT06502964Study of ALTO-101 in Patients With SchizophreniaSchizophrenia
RECRUITING82 Analytics
PHASE2RECRUITING
Study of ALTO-101 in Patients With Schizophrenia
SchizophreniaUnlock trial analytics

Study Endpoints

Primary Endpoints

Theta band activity
Treatment Period 1 - Day 6 and Day 11; Treatment Period 2 - Day 6 and Day 11

Theta band activity after 5 and 10 days of dosing of ALTO-101T compared to placebo.

Secondary Endpoints

Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability] ALTO-101T compared to placebo
Treatment Period Day 1 through study completion (an average of 36 days)
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelCROSSOVER
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
ALTO-101EXPERIMENTAL10 days administration of ALTO-101T transdermal delivery system
PlaceboPLACEBO_COMPARATOR10 days administration of placebo transdermal delivery system

Interventions

NameTypeDescription
ALTO-101DRUGALTO-101 patches
ALTO-101 Transdermal Delivery SystemDEVICEALTO-101 transdermal delivery system
PlaceboDRUGInactive placebo patches
Placebo Transdermal Delivery SystemDEVICEPlacebo transdermal delivery system
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Eligibility Criteria

Age Range21 Years to 55 Years
SexALL
Healthy VolunteersNo
Study Sites14

Inclusion Criteria: * Schizophrenia diagnosis for at least one year * Cognitive impairment * Stable doses of 1-2 antipsychotic medication(s) for at least 8 weeks at Visit 2 * Positive and Negative Syndrome Scale (PANSS) score: items P1, P3-P6 ≤ 5 and item P2 and P7 ≤ 4 during screening * Have a bod...

Countries:United States
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Frequently asked questions about ALTO-101

What is ALTO-101 used for in schizophrenia?

ALTO-101 is an investigational small molecule being developed for the treatment of cognitive impairment associated with schizophrenia. It is currently in Phase 2 clinical development and has not been approved by the FDA. The drug is being studied in patients with schizophrenia to evaluate its effects on cognitive symptoms.

Who makes ALTO-101?

ALTO-101 is being developed by Alto Neuroscience, Inc., a biopharmaceutical company publicly traded under the ticker symbol ANRO. The company is conducting clinical trials to evaluate the safety and efficacy of ALTO-101 in patients with schizophrenia.

What phase is ALTO-101 in?

ALTO-101 is currently in Phase 2 clinical development. It is an investigational drug and has not received FDA approval. The ongoing Phase 2 trial is recruiting patients with schizophrenia and cognitive impairment to assess the drug's efficacy and safety.

What clinical trials is ALTO-101 in?

ALTO-101 is being studied in a Phase 2 clinical trial with the identifier NCT06502964, titled "Study of ALTO-101 in Patients With Schizophrenia." This randomized, double-blind, placebo-controlled trial is recruiting 82 participants in the United States and is currently in the recruiting stage.

Is ALTO-101 FDA approved?

No, ALTO-101 is not FDA approved. It is an investigational drug currently in Phase 2 clinical trials. The FDA has granted Fast Track designation for ALTO-101, which is intended to facilitate the development and expedite the review of drugs that treat serious conditions and fill an unmet medical need.