Double Blind Trial in Children With Autism Spectrum Disorder

NCT ID: NCT06058962

Last Updated: 2023-11-13

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE2
• Total Enrollment: 52 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2019-06-01
• Study Completion Date: 2021-03-15

Brief Summary

This study investigated the safe and efficacious use of suramin as a novel treatment for ASD by testing two suramin doses vs placebo

Detailed Description

PUR-ONQ-ASD-001 was a multicenter, 3-arm, prospective, randomized, double blind, placebo-controlled multiple dose trial involving 2 dose levels of suramin vs. placebo. The study randomized 52 male participants who received treatment interventions for ASD; each treatment arm was assigned approximately 17 participants. The number of participants was increased to 52 participants (48 originally planned) due to early withdrawals related to the COVID-19 global pandemic lockdowns and other matters. Participants were stratified by age, ADOS-2, and Non-verbal Intelligence Quotient (NVIQ). Participants who met all the inclusion criteria and none of the exclusion criteria were randomized through an electronic system to either arm A (10 mg/kg suramin) or Arm B (20 mg/kg suramin) or Arm C (Placebo) in a targeted 1:1:1 ratio, as per the randomization schedule and stratified by age, ADOS-2, and NVIQ. All participants received a 50 mg test dose at their first administration (0.5 mL of freshly reconstituted 10% solution in 5 mL saline) to check for allergic reactions. The test dose was given by slow intravenous (IV) infusion for 30 minutes then flushed with 10 mL saline. Vitals were checked for 30 min and if there were no changes or evidence of allergic reaction, the rest of the study drug dose was administered (10 mg/kg or 20 mg/kg minus test dose [minus 50 mg] in a 50 mL saline up to a maximum of 1 g given over 30 minutes). Arm A - 50 mg test dose of suramin (upon first administration), then suramin 10 mg/kg (minus 50 mg suramin test dose) in 50 mL of saline administered by IV infusion over 30 minutes was given at Visits 2, 4 and 5. The maximum dose administered was 1 g.

Arm B - 50 mg test dose of suramin (upon first administration), then suramin 20 mg/kg (minus 50 mg suramin test dose) in 50 mL of saline administered by IV infusion over 30 minutes was given at Visits 2, 4 and 5. The maximum dose administered was 1 g.

Arm C - Test dose of saline placebo, then saline placebo IV infusion of 50 mL administered over 30 minutes was given at Visits 2, 4 and 5

Conditions

Autism Spectrum Disorder

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: QUADRUPLE

Study Groups

Suramin 10 mg/kg

50 mg test dose of suramin (upon first administration), then suramin 10 mg/kg (minus 50 mg suramin test dose) in 50 mL of saline administered by IV infusion over 30 minutes was given at Visits 2, 4, and 5.

Group Type: EXPERIMENTAL

Suramin Sodium

Intervention Type: DRUG

Suramin sodium is a sodium salt form of suramin, an antitrypanosomal compound.

Suramin 20 mg/kg

50 mg test dose of suramin (upon first administration), then suramin 20 mg/kg (minus 50 mg suramin test dose) in 50 mL of saline administered by IV infusion over 30 minutes was given at Visits 2, 4, and 5.

Group Type: EXPERIMENTAL

Suramin Sodium

Intervention Type: DRUG

Suramin sodium is a sodium salt form of suramin, an antitrypanosomal compound.

Placebo

Test dose of saline placebo, then saline placebo infusion of 50 mL administered over 30 minutes was given at Visits 2, 4, and 5.

Group Type: PLACEBO_COMPARATOR

Suramin Sodium

Intervention Type: DRUG

Suramin sodium is a sodium salt form of suramin, an antitrypanosomal compound.

Interventions

Suramin Sodium

Suramin sodium is a sodium salt form of suramin, an antitrypanosomal compound.

Intervention Type: DRUG

Other Intervention Names

Placebo

Eligibility Criteria

Inclusion Criteria

• Male children aged 4 - 17 years
• Participants with or without treatment interventions for ASD
• Participants must have been diagnosed with ASD by Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-V)
• Autism diagnostic observation schedule, version 2 (ADOS-2) Comparison scores in the
• moderate and high level as evaluated on the ADOS-2
• Stable treatment intervention for ≥ 2 months
• Participants agreed to not change their treatment interventions throughout the study
• duration
• Participants on Ritalin and Risperdal or similar medication agreed to not change their
• dose during the study

Exclusion Criteria

• Hospitalization within the previous 2 months
• An acute medical problem, Rett syndrome, microcephaly, tuberous sclerosis, neurofibromatosis, epilepsy, or clinically significant liver, kidney, or adrenal disease or persons suffering from any serious acute condition where, in the investigator's opinion, the participant's well-being may have been compromised
• Planning to start a new drug, diet, or behavioral intervention during the study
• Weight under the 5th percentile for age
• Unable to tolerate venipuncture, urine collection, or an indwelling IV catheter for 3-4 hours
• Plasma creatinine above normal for age and weight according to the laboratory reference ranges.
• Liver function alanine aminotransferase (ALT) or aspartate aminotransferase (AST) ≥ 1.5-fold above the upper limit of normal
• Known intolerance to suramin or other antipurinergic drugs
• Unable to perform or cooperate with study requirements
• Children with known syndromic forms of ASD caused by DNA mutation or chromosomal copy number variation

• Minimum Eligible Age: 4 Years
• Maximum Eligible Age: 17 Years
• Eligible Sex: MALE
• Accepts Healthy Volunteers: No

Sponsors

Paxmedica

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

jennifer L bonfrisco

Role: STUDY_DIRECTOR

Paxmedica

Locations

PaxMedica

Tarrytown, New York, United States

Countries

United States

References

Hough D, Mao AR, Aman M, Lozano R, Smith-Hicks C, Martinez-Cerdeno V, Derby M, Rome Z, Malan N, Findling RL. Randomized clinical trial of low dose suramin intravenous infusions for treatment of autism spectrum disorder. Ann Gen Psychiatry. 2023 Nov 6;22(1):45. doi: 10.1186/s12991-023-00477-8.

Reference Type: DERIVED

PMID: 37932739 (View on PubMed)

Other Identifiers

PUR-ONQ-ASD-001

Identifier Type: -

Identifier Source: org_study_id