Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
PHASE2
45 participants
INTERVENTIONAL
2024-08-03
2026-07-31
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
QUADRUPLE
Study Groups
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TB006
TB006 is a humanized immunoglobulin G4 (IgG4) (S228P) type monoclonal antibody that is highly specific and has a high affinity to human Galectin-3 (hGal-3). Galectins are a ubiquitous group of proteins found in a variety of cells, tissues, and extravascular spaces, and are involved in numerous metabolic processes and functions. The galectins preferentially bind to β-galactoside derivatives and can cross-link surface glycoproteins by binding galactose residues. The Gal-3 protein plays an important role in different pathogenic conditions, including neurodegenerative and neuroinflammatory disorders. Serum levels of Gal-3 have been found to be elevated in ASD.
TB006
TB006 is a humanized immunoglobulin G4 (IgG4) (S228P) type monoclonal antibody that is highly specific and has a high affinity to human Galectin-3 (hGal-3).
Placebo
Identical IV solution without TB006 product
TB006
TB006 is a humanized immunoglobulin G4 (IgG4) (S228P) type monoclonal antibody that is highly specific and has a high affinity to human Galectin-3 (hGal-3).
Interventions
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TB006
TB006 is a humanized immunoglobulin G4 (IgG4) (S228P) type monoclonal antibody that is highly specific and has a high affinity to human Galectin-3 (hGal-3).
Eligibility Criteria
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Inclusion Criteria
2. Between 18 and 35 years of age at baseline.
3. English included in the languages in which the individual is being raised.
4. Autism severity of moderate or higher (≥4) under the 7-item clinical global impression-severity scale.
5. Ability to maintain all ongoing complementary, dietary, traditional, and behavioral treatments constant for the study period.
6. Unchanged complementary, dietary, traditional, and behavioral treatments for two months prior to study entry.
7. In males and females of childbearing age, two forms of birth control must be used unless they are not sexually active.
8. A caretaker who will accompany the patient to all procedures and has adequate contact with the participant to complete caregiver questionnaires.
Exclusion Criteria
2. History of infusion reactions to immunoglobulin product.
3. Significant self-abusive or violent behavior or evidence of suicidal ideation, plan or behavior.
4. Severely affected as defined by CGI-Severity Standard Score = 7 (Extremely Ill).
5. Severe prematurity (\<34 weeks gestation) as determined by medical history.
6. Current uncontrolled gastroesophageal disorders.
7. Current or history of liver or kidney disease as determined by medical history and safety labs (See Laboratory Values Monitoring Plan for specific laboratory values).
8. Genetic syndromes.
9. Congenital brain malformations.
10. Active Epilepsy Diagnosis (Epilepsy Diagnosis is defined as History of two or more unprovoked seizures; Patient with a history of epilepsy who have been off medication without seizures for more than two years do not qualify as active epilepsy).
11. Any medical condition that the PI determines could jeopardize the safety of the study subject or compromise the integrity of the data.
12. Significant negative reaction (i.e., fainting, vomiting, etc.) because of a previous blood draw.
13. Failure to thrive or \< 5%ile for Body Mass Index or weight at the time of screening.
14. Concurrent treatment with drug that would significantly interact with the investigational product.
15. Allergy or Sensitivity to ingredients in the investigational product or placebo.
16. Evaluation with the NIH Toolbox or BOSCC within 3 months of entering the study.
17. Planned evaluation with the NIH Toolbox or BOSCC during the study.
18. Pregnancy
19. Current DSM-5 diagnosis requiring alternative pharmacotherapy, e.g., Major Depression, Bipolar Disorder, a psychotic disorder (based on clinical assessment assisted by the Child and Adolescent Symptom Inventory).
20. Refusal to comply with the use of birth control if sexually active.
21. Abnormal vital signs (systolic blood pressure \> 180 mmHg or \< 90 mmHg; heart rate \> 120 beats per minute or \< 55 beats per minute; temperature \> 101.0o F; oxygen saturation \< 90%)
22. Prolonged QTc (defined as \> 450ms for males and \>470ms for female) or any abnormalities felt by the investigator to be of concern.
18 Years
35 Years
ALL
No
Sponsors
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Autism Discovery and Treatment Foundation
UNKNOWN
Rossignol Medical Center
OTHER
Responsible Party
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Principal Investigators
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Richard E Frye, M.D., Ph.D
Role: STUDY_DIRECTOR
Rossignol Medical Center
Daniel A Rossignol, MD
Role: PRINCIPAL_INVESTIGATOR
Rossignol Medical Center
Locations
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Rossignol Medical Center
Phoenix, Arizona, United States
Rossignol Medical Center
Aliso Viejo, California, United States
Countries
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Central Contacts
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Facility Contacts
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References
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Rodriguez JI, Kern JK. Evidence of microglial activation in autism and its possible role in brain underconnectivity. Neuron Glia Biol. 2011 May;7(2-4):205-13. doi: 10.1017/S1740925X12000142. Epub 2012 Jul 6.
Garcia-Revilla J, Boza-Serrano A, Espinosa-Oliva AM, Soto MS, Deierborg T, Ruiz R, de Pablos RM, Burguillos MA, Venero JL. Galectin-3, a rising star in modulating microglia activation under conditions of neurodegeneration. Cell Death Dis. 2022 Jul 20;13(7):628. doi: 10.1038/s41419-022-05058-3.
Wang X, Zhang S, Lin F, Chu W, Yue S. Elevated Galectin-3 Levels in the Serum of Patients With Alzheimer's Disease. Am J Alzheimers Dis Other Demen. 2015 Dec;30(8):729-32. doi: 10.1177/1533317513495107. Epub 2013 Jul 2.
Artik A, Kocaman O, Kara H, Tuncer SC. Galectin-3 levels in school aged children with autism spectrum disorder. Int J Dev Disabil. 2022 Dec 1;69(5):757-761. doi: 10.1080/20473869.2022.2150035. eCollection 2023.
Other Identifiers
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TB-RMC
Identifier Type: -
Identifier Source: org_study_id
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