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Tiratricol

Phase 2

Allan-Herndon-Dudley Syndrome | Small molecule | Rare Disease |cbdMD, Inc.|Last Updated: Feb 20, 2026

Target and mechanism

Molecular targetTHRA, THRB
Target classAgonist
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment22

FDA Designations

No designations recorded

Clinical trial landscape

Tiratricol · 1 trial · 1 indication

Phase 2 1
NCT02396459Triac Trial II in MCT8 Deficiency PatientsAllan-Herndon-Dudley Syndrome
ACTIVE NOT_RECRUITING22 Analytics
PHASE2ACTIVE NOT_RECRUITING
Triac Trial II in MCT8 Deficiency Patients
Allan-Herndon-Dudley SyndromeUnlock trial analytics

Study Endpoints

Primary Endpoints

Gross Motor Function Measure 88 (GMFM 88) total score
96 weeks, Year 3, Year 4 and Year 5

To evaluate the effects of tiratricol on neurodevelopment in young MCT8 deficiency patients, measured by the Gross Motor Function Measure (GMFM)-88 assessment. Potential result values range from 0 to 100%, the latter being representative for a 4-year old healthy child. A high score is equivalent to better/more neurodevelopment and is therefore a better outcome than a low score.

Bayley Scales of Infant Development III Gross Motor Skill Domain score
96 weeks, Year 3, Year 4 and Year 5

To evaluate the effect of tiratricol treatment on neurodevelopment measured by the Bayley Scales of Infant Development (BSID-III) Gross Motor Skill Domain score. Potential total raw scores range from 0-72, and can be age-adjusted before analysis. A high score is equivalent to better/more neurodevelopment and is therefore a better outcome than a low score

Secondary Endpoints

GMFM-88 individual item score 10 and 24.
96 weeks, Year 3, Year 4 and Year 5
Bayley Scales of Infant Development III score.
96 weeks, Year 3, Year 4 and Year 5
Serum T3 concentrations
96 weeks, Year 3, Year 4 and Year 5
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
MCT8 deficient patientsEXPERIMENTALTiratricol (Triac) treatment

Interventions

NameTypeDescription
TiratricolDRUGTiratricol, individually titrated dose
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Eligibility Criteria

Age RangeN/A to 30 Months
SexMALE
Healthy VolunteersNo
Study Sites5

Inclusion Criteria: * Signed and dated informed consent form from the parents or legal guardian. * Parents stated willingness to comply with all study procedures and availability for the duration of the study. * The participant should be aged between 0 and 30 months on the day of inclusion. * The p...

Countries:United StatesCzechiaGermanyNetherlands
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Frequently asked questions about Tiratricol

What is Tiratricol used for?

Tiratricol is an investigational small molecule being developed for Allan-Herndon-Dudley Syndrome, a rare genetic disorder. It is currently in Phase 2 clinical development and has not been approved by the FDA.

What does Tiratricol target?

Tiratricol is a small molecule designed to treat Allan-Herndon-Dudley Syndrome, a rare disease caused by mutations in the MCT8 transporter. The drug is being studied for its ability to address the thyroid hormone transport deficiency associated with this condition.

Who makes Tiratricol?

Tiratricol is being developed by cbdMD, Inc., a company traded on the NYSE American under the ticker symbol YCBD. The company is conducting clinical trials to evaluate the drug for Allan-Herndon-Dudley Syndrome.

What phase is Tiratricol in?

Tiratricol is in Phase 2 clinical development. It is an investigational drug and has not received FDA approval. The ongoing Phase 2 trial is active but not recruiting participants.

What clinical trials is Tiratricol in?

Tiratricol is being studied in a Phase 2 clinical trial with the identifier NCT02396459, titled 'Triac Trial II in MCT8 Deficiency Patients.' The trial is enrolling 22 male participants with Allan-Herndon-Dudley Syndrome across the United States, Czechia, Germany, and the Netherlands.

Is Tiratricol the same as Triac?

Tiratricol is also known as Triac, as reflected in the clinical trial title 'Triac Trial II in MCT8 Deficiency Patients.' The drug is being investigated under this alternative name for the treatment of Allan-Herndon-Dudley Syndrome.