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Trial · NCT05818943

Honeycomb: Evaluation of Radiprodil in Children with GRIN-related Disorder

NCT05818943, Phase 1, Active not recruiting, GRIN Therapeutics, Inc.

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Honeycomb: Evaluation of Radiprodil in Children with GRIN-related Disorder. Trials, record NCT05818943. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT05818943

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Trial

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

Title
Honeycomb: Evaluation of Radiprodil in Children with GRIN-related Disorder
NCT number
NCT05818943
Status
Active not recruiting
Phases
Phase 1
Enrollment
24 participants, estimated
Lead sponsor
GRIN Therapeutics, Inc.
Conditions
GRIN-related Disorders
Interventions
Radiprodil
First posted
2023-04-19
Last updated
2024-11-15
Other registries' IDs
eudract:2022-000317-14

Source ClinicalTrials.gov

Registered outcomes16

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

ListOutcomeTime frameDescription
PrimaryIncidence of Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs (SAEs), TEAEs Leading to Discontinuation and Severity of TEAEsthrough study completion (average of 2 years).Frequency, type, severity and duration of adverse events, serious adverse events and adverse drug reactions.
PrimaryMaximum Plasma concentration of radiprodil (Cmax)Titration Visit 1 (week 5): 0,1,2,4,6,8,10,12 hours post-dose. Titration Visits 2,3,4 (week 6 to 11) and Maintenance Visit 4 (week 20): 0,1,2,5 hours post-dose.
PrimaryPharmacokinetic plasma concentration of radiprodil: half-life (T1/2)Titration Visit 1 (week 5): 0,1,2,4,6,8,10,12 hours post-dose. Titration Visits 2,3,4 (week 6 to 11) and Maintenance Visit 4 (week 20): 0,1,2,5 hours post-dose.
PrimaryPlasma concentration of radiprodil versus time, area under the curve (AUCt)Titration Visit 1 (week 5): 0,1,2,4,6,8,10,12 hours post-dose. Titration Visits 2,3,4 (week 6 to 11) and Maintenance Visit 4 (week 20): 0,1,2,5 hours post-dose.
PrimaryPharmacokinetic plasma concentration of radiprodil, clearance (Cl)Titration Visit 1 (week 5): 0,1,2,4,6,8,10,12 hours post-dose. Titration Visits 2,3,4 (week 6 to 11) and Maintenance Visit 4 (week 20): 0,1,2,5 hours post-dose.
PrimaryPharmacokinetic plasma concentration of radiprodil, Time corresponding to occurrence of Cmax (Tmax)Titration Visit 1 (week 5): 0,1,2,4,6,8,10,12 hours post-dose. Titration Visits 2,3,4 (week 6 to 11) and Maintenance Visit 4 (week 20): 0,1,2,5 hours post-dose.
SecondaryPercent change from baseline in V-EEG seizure burdenBaseline (week 5) to study completion (average of 2 years).Assessed by 8- to 24- hour video electroencephalogram
SecondaryChange from baseline in seizure frequencyBaseline (week 5) to study completion (average of 2 years).Assessed by seizure diaries
SecondaryAberrant Behavior Checklist-Community (ABC-C)Baseline (week 5) to study completion (average of 2 years).
The ABCC is a standardized 58-item caregiver-reported problem-behavior rating scale, originally designed to assess treatment effects in people with intellectual disabilities. Each item is scored from 0 (never a problem) to 3 (severe problem). Items load onto one of five empirically derived subscales: Irritability, Agitation, \& Crying (15 items); Lethargy/Social Withdrawal (16 items); Stereotypic Behavior (7 items); Hyperactivity/Noncompliance (16 items); and Inappropriate Speech (4 items). A total score would range from 0 to 174.
SecondaryCaregiver Global Impression of Change (CaGI-C)Baseline (week 5) to study completion (average of 2 years).The CaGI-C is a 7-point caregiver-rated scale ranging from 1 (very much improved) to 7 (very much worse).

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.

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

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.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license 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/NCT05818943

GET https://conductscience.org/api/trials/v1/NCT05818943/registered