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CTx-1301- Dexmethylphenidate

Phase 3

ADHD | Small molecule | Psychiatry |Cingulate Inc.|Last Updated: Jul 2, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment26

FDA Designations

No designations recorded

Clinical trial landscape

CTx-1301- Dexmethylphenidate · 1 trial · 4 indications

Phase 3 1
NCT05631626Phase 3 Efficacy and Safety Study in Adults With ADHD Using CTx-1301.ADHD
COMPLETED26 Analytics
PHASE3COMPLETED
Phase 3 Efficacy and Safety Study in Adults With ADHD Using CTx-1301.
ADHDUnlock trial analytics

Study Endpoints

Primary Endpoints

The Primary Efficacy Analysis Will Analyze the Change in PERMP Scores From Baseline (Pre-dose) at Visit 8 to Hour 16 at Visit 8.
Average of the change of the PERMP-C scores from baseline defined as pre-dose score at Visit 8 which was at end of 7-day double-blind period to PERMP-C scores at hour 16 at Visit 8.

The Permanent Product Measure of Performance-Correct (PERMP-C) is an objective, validated, skill-adjusted 10-minute math test that measures attention and accuracy in ADHD. Performance is measured by the number of math problems answered correctly. The minimum possible score is 0. The highest possible score is 400, with higher scores mean higher performance and less severe ADHD symptoms.

Secondary Endpoints

Key Secondary Analysis Will Analyze the Change in PERMP Scores From Baseline at Each Time Point During the Laboratory Environment at Visit 8.
Average of the change of the PERMP-C scores from baseline defined as pre-dose score at Visit 8 which was at end of 7-day double-blind period to PERMP-C scores at hours .5,1,3,6,9,12,13,14,15, and 16.
Key Secondary Analysis Will Analyze the Change From Baseline (Pre-dose at Visit 2) of Clinical Global Impression - Severity (CGI-S) Scores to CGI-S at Visit 8.
Baseline (pre-dose at Visit 2) to Visit 8 (approximately 6 weeks).
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
25mg CTx-1301 (Dexmethylphenidate tablet)ACTIVE_COMPARATORAll subjects will be titrated to their optimal dose during the dose-optimization phase. The starting dose for all subjects at Day 0 is 25mg. Each subject is expected to be on their optimal dose for 2 sequential weeks prior to the randomization phase. Subjects will be randomized (1:1) to their optimal dose or placebo in the 7-day, double-blind, randomization phase.
37.5mg CTx-1301 (Dexmethylphenidate tablet)ACTIVE_COMPARATORAll subjects will be titrated to their optimal dose during the dose-optimization phase. Possible doses are 25mg, 37.5mg, or 50mg . Each subject is expected to be on their optimal dose for 2 sequential weeks prior to the randomization phase. Subjects will be randomized (1:1) to their optimal dose or placebo in the 7-day, double-blind, randomization phase.
50mg CTx-1301 (Dexmethylphenidate tablet)ACTIVE_COMPARATORAll subjects will be titrated to their optimal dose during the dose-optimization phase. Possible doses are 25mg, 37.5mg, or 50mg . Each subject is expected to be on their optimal dose for 2 sequential weeks prior to the randomization phase. Subjects will be randomized (1:1) to their optimal dose or placebo in the 7-day, double-blind, randomization phase.
PlaceboPLACEBO_COMPARATORSubjects will be randomized (1:1) to their optimal dose or placebo in the 7-day, double-blind, randomization phase.

Interventions

NameTypeDescription
CTx-1301 - Dexmethylphenidate 25mgDRUG25mg CTx-1301 (Dexmethylphenidate tablet)
CTx-1301 - Dexmethylphenidate 37.5mgDRUG37.5mg CTx-1301 (Dexmethylphenidate tablet)
CTx-1301 - Dexmethylphenidate 50mgDRUG50mg CTx-1301 (Dexmethylphenidate tablet)
PlaceboDRUGPlacebo
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Eligibility Criteria

Age Range18 Years to 55 Years
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: 1. Male or female subjects between 18 and 55 years of age (inclusive) at the time of consent. 2. Subject must have a body mass index (BMI) ≥18.5 and ≤40. 3. Subject is unsatisfied with his/her current pharmacological therapy for treatment of ADHD or not currently receiving pharm...

Countries:United States
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Competitive Landscape -ADHD 3 trials

CompanyTickerTrialsLead PhaseDrugs
Supernus Pharmaceuticals, Inc.SUPN1PHASE3SPN-812
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Recent Changes (Last 90 Days)

MEDIUMAug 2, 2026NCT05631626TRIAL_REMOVED: changed
MEDIUMAug 2, 2026NCT05631626TRIAL_REMOVED: changed
MEDIUMAug 2, 2026NCT05631626TRIAL_REMOVED: changed
MEDIUMAug 2, 2026NCT05631626TRIAL_REMOVED: changed

Frequently asked questions about CTx-1301- Dexmethylphenidate

What is CTx-1301 used for in ADHD?

CTx-1301 is an investigational small molecule being developed for the treatment of attention deficit hyperactivity disorder (ADHD). It is a dexmethylphenidate-based therapy designed to address symptoms of ADHD, including inattentiveness, hyperactivity, and impulsivity. The drug is currently in Phase 3 clinical development and has not yet been approved by regulatory authorities.

What does CTx-1301 target?

CTx-1301 contains dexmethylphenidate, which works by targeting the central nervous system to affect certain neurotransmitters involved in attention and behavior. Specifically, it inhibits the reuptake of dopamine and norepinephrine, increasing their levels in the brain, which helps improve focus and reduce impulsivity in individuals with ADHD.

Who makes CTx-1301?

CTx-1301 is being developed by Cingulate Inc., a biopharmaceutical company traded on the stock exchange under the ticker symbol CING. The company is focused on creating therapies for psychiatric and neurological conditions, with CTx-1301 being one of its lead product candidates for ADHD.

What phase is CTx-1301 in?

CTx-1301 is currently in Phase 3 clinical development. A Phase 3 study has been completed, evaluating the efficacy and safety of the drug in adults with ADHD. As of now, CTx-1301 remains investigational and has not received FDA approval, as it is still undergoing clinical trials to establish its safety and effectiveness.

What clinical trials is CTx-1301 in?

CTx-1301 has one completed Phase 3 clinical trial registered under NCT05631626. This study, titled 'Phase 3 Efficacy and Safety Study in Adults With ADHD Using CTx-1301,' was a randomized, double-blind, placebo-controlled trial conducted in the United States. It enrolled 26 adult participants aged 18 years and older with ADHD.

Is CTx-1301 the same as dexmethylphenidate?

CTx-1301 is a formulation of dexmethylphenidate, which is the active pharmaceutical ingredient in the drug. While dexmethylphenidate is a well-known medication for ADHD, CTx-1301 is a proprietary product being developed by Cingulate Inc. with a specific delivery profile. It is not the same as generic dexmethylphenidate products.