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Trial · NCT03776656

Evaluation of a Treatment With Allopurinol in Adenylosuccinate Lyase Deficiency

NCT03776656, Phase 2, Completed, Assistance Publique - Hôpitaux de Paris

3 sourcestrials-2026-11-12-0.4.0

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ConductScience Library. Evaluation of a Treatment With Allopurinol in Adenylosuccinate Lyase Deficiency. Trials, record NCT03776656. Release trials-2026-11-12-0.4.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03776656

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Evaluation of a Treatment With Allopurinol in Adenylosuccinate Lyase Deficiency
NCT number
NCT03776656
Status
Completed
Phases
Phase 2
Enrollment
8 participants, actual
Lead sponsor
Assistance Publique - Hôpitaux de Paris
Conditions
Adenylosuccinate Lyase Deficiency
Interventions
Allopurinol
First posted
2018-12-17
Last updated
2026-03-04
Other registries' IDs
eudract:2017-002155-28

Source ClinicalTrials.gov

Registered outcomes14

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryMeasurement of adaptive functional improvement : composite total score for Vineland II adaptive behaviour Scale12 months
to assess Efficacy of Allopurinol (Zyloric)® treatment from Baseline : For each scale : Mean : 100 SD : 15 * Adaptive behaviour composite : Range 20 to 180 -Domains scores : Range 20 to 140 -Communication : Range 20 to 140 -Daily living skills : Range 20 to 140 -Socialization : 20 to 140 -Motor skills : 20 to 140 For each scale values are considered to be better or worse outcome :High 130 to 140 -Moderately High 115 to 129 -Adequate 86 to 114 -Moderately Low 71 to 85 -Low 20 to 70 Total score is obtained by summing the subdomains scores
SecondaryEvolution of the Scores of different subdomains Vineland II scale from baselineat 0, 6 months and 12 monthsClinical evolution for developmental and cognitive assessment
SecondaryEvolution of the Psycho-Educative Profile (PEP III/R) from baselineat 0, 12 monthsClinical evolution for developmental and cognitive assessment
SecondaryEvolution of the Score ADI-R (Autism Diagnostic Interview-Revised) from baselineat 0, 12 months
Clinical evaluation for autistic symptoms : scale ranges : * A : Social interactions: 0 to 30 (significative if \>10) * B : Communication : 0 to 26 (significative if \> 7 or 8) * C : Repetitive and restricted interests : 0 to 16 (significative if \>3) * D : Developmental abnormality present before 36 months : 0 to 5 (significative if \>1) better score : 0 (non autistic) - worse score : the higher score is the worst
SecondaryEvolution of the Score ADOS-2 (Autism Diagnostic Observation Schedule 2) from baselineat 0, 12 months
Clinical evaluation for autistic symptoms. Scale ranges : * A : Socialization : social interactions and communication : 0 to 20 (social interactions : 0 to 6 -communication : 0 to 14) * B : Restricted and repetitive interests : 0 to 8 * Total : A+B : 0 to 28 Autism : total score\>12 - Autism Spectrum Disorder : total score \>8 Better score : 0 - Worse score : the highest score is the worst
SecondaryEvolution of the Score on Conners hyperactivity Scaleat 0, 6 months and 12 months
Clinical evolution for behavioral disorders and adaptive functioning Conners Scale for Parents : \- Subscales : Behavioural difficulties (items 2-8-14-19-20-27-35-39) : 0 to 24 Learning difficulties (items 10-25-31-37) : 0 to 12 Somatisation (items 32-41-43-44) : 0 to 12 Impulsivity, hyperactivity (items 4-5-11-13): 0 to 12 Anxiety (items 12-16-24-47): 0 to 12 -Hyperactivity index : sum of the items (4-7-11-13-14-25-31-33-37-38) divided by 10 : 0 to 3 Conners Scale for teachers : \- Subscales : Behavioural difficulties (items 4-5-6-10-11-12-23-27) : 0 to 24 Impulsivity, hyperactivity (items 1-2-3-8-14-15-16) : 0 to 21 Inattention, passivity (items 7-9-18-20-21-22-26-28) : 0 to 24 -Hyperactivity index (sum of the items 1-5-7-8-10-11-14-15-21-26 divided by 10) : 0 to 3 Better score : 0 - Worse score : the highest score is the worst -Hyperactivity index : Significative if\> 1,5
SecondaryEvolution of the Score on ABC scale (Aberrant Behaviour Checklist)at 0, 6 months and 12 months
Clinical evolution for behavioral disorders and adaptive functioning scale ranges : * Irritability : 0 to 45 * Lethargy : 0 to 48 * Stereotypy : 0 to 21 * Hyperactivity : 0 to 48 * Inappropriate speech : 0 to 12 Better score : 0 -Worse score : the highest score is the worst on each scale- there is no total score
SecondaryEvolution of SAICAr levels in the urineat 0, 6 months and 12 monthsEvolution of the quantity of urinary metabolites from Baseline
SecondaryEvolution of S-Ado levels in the urineat 0, 6 months and 12 monthsEvolution of the quantity of urinary metabolites from Baseline
SecondaryEvolution of SAICAr levels in the bloodat 0, 6 months and 12 monthsEvolution of the quantity of plasma metabolites from Baseline

Outcomes0

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

None in this release.

Results by group0

Each measurement the trial posted, group by group, in the words and numbers it posted.

None in this release.

Participant flow0

How many started, completed or left each group, period by period.

None in this release.

Adverse events0

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

None in this release.

Adverse event totals0

The totals the trial posted for each group.

None in this release.

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
41053929RESULT

Source PubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Source

Release
trials-2026-11-12-0.4.0
Release manifest SHA-256
0f4a8d8c48aee2a7573ae0fa94ecbeab70c1adbe449bbc95c424bc7d3e97b9d4
Registry capture
2026-11-12
Results copy, AACT
2026-03-23
NIH clinical studies file
2026-11-13

Source ClinicalTrials.gov

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNone stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT03776656

GET https://conductscience.org/api/trials/v1/NCT03776656/registered