Trial Review

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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/ct2/show/NCT05558371




Registration number
NCT05558371
Ethics application status
Date submitted
28/07/2022
Date registered
28/09/2022
Date last updated
6/12/2023

Titles & IDs
Public title
International CDKL5 Clinical Research Network
Scientific title
Multi-Site Validation of Biomarkers and Core Clinical Outcome Measures for Clinical Trials Readiness in CDKL5 Deficiency Disorder
Secondary ID [1] 0 0
5U01NS114312
Secondary ID [2] 0 0
19-2756
Universal Trial Number (UTN)
Trial acronym
ICCRN
Linked study record

Health condition
Health condition(s) or problem(s) studied:
CDKL5 0 0
CDKL5 Deficiency Disorder 0 0
CDD 0 0
Condition category
Condition code

Intervention/exposure
Study type
Observational
Patient registry
Target follow-up duration
Target follow-up type
Description of intervention(s) / exposure
Other interventions - No intervention.

Other interventions: No intervention.
No intervention administered as part of this study; observational only.
Intervention code [1] 0 0
Other interventions
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
CDKL5 Deficiency Disorder (CDD) Clinical Severity Assessment - Clinician (CCSA-Clinician)
Timepoint [1] 0 0
5 years
Primary outcome [2] 0 0
CDKL5 Deficiency Disorder (CDD) Clinical Severity Assessment - Caregiver (CCSA-Caregiver)
Timepoint [2] 0 0
5 years
Primary outcome [3] 0 0
CDKL5 Deficiency Disorder (CDD) Development Questionnaire - Caregiver (CDQ-Caregiver)
Timepoint [3] 0 0
5 years
Primary outcome [4] 0 0
Communication and Symbolic Behavior Scales - Developmental Profile Infant Toddler Checklist (CSBS-DP ITC)
Timepoint [4] 0 0
5 years
Primary outcome [5] 0 0
Sleep Disorder Scale for Children (SDSC)
Timepoint [5] 0 0
5 years
Primary outcome [6] 0 0
Quality of Life Inventory - Disability (QI-Disability)
Timepoint [6] 0 0
5 years
Primary outcome [7] 0 0
CDKL5 Deficiency Disorder (CDD) Gross Motor (CDD-Motor)
Timepoint [7] 0 0
5 years
Primary outcome [8] 0 0
CDKL5 Deficiency Disorder (CDD) Fine Motor (CDD-Hand)
Timepoint [8] 0 0
5 years
Primary outcome [9] 0 0
Electroencephalogram/Evoked Potentials (EEG/EP) characteristics in CDKL5 Deficiency Disorder.
Timepoint [9] 0 0
5 years
Secondary outcome [1] 0 0
Frequency of different mutations in the CDKL5 Deficiency Disorder population
Timepoint [1] 0 0
5 years
Secondary outcome [2] 0 0
Frequency of medications and their indications in the CDKL5 Deficiency Disorder population
Timepoint [2] 0 0
5 years
Secondary outcome [3] 0 0
Social Determinants of Health (SDOH) in CDKL5 Deficiency Disorder population
Timepoint [3] 0 0
5 years

Eligibility
Key inclusion criteria
- All children diagnosed with CDD age 1-month to 100 years of age that are receiving
care at one of the study institutions or are registered with the International CDKL5
Disorder Database will be considered for the study population.
Minimum age
1 Month
Maximum age
100 Years
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
- Individuals who do not meet study inclusion criteria.

Study design
Purpose
Duration
Selection
Timing
Prospective
Statistical methods / analysis

Recruitment
Recruitment status
Recruiting
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
15/02/2021
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
15/02/2027
Actual
Sample size
Target
1000
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
Nedlands WA
Recruitment hospital [1] 0 0
Telethon Kids Institute/Perth Children's Hospital - Perth
Recruitment postcode(s) [1] 0 0
6009 - Perth
Recruitment outside Australia
Country [1] 0 0
United States of America
State/province [1] 0 0
California
Country [2] 0 0
United States of America
State/province [2] 0 0
Colorado
Country [3] 0 0
United States of America
State/province [3] 0 0
Massachusetts
Country [4] 0 0
United States of America
State/province [4] 0 0
Missouri
Country [5] 0 0
United States of America
State/province [5] 0 0
New York
Country [6] 0 0
United States of America
State/province [6] 0 0
Ohio
Country [7] 0 0
United States of America
State/province [7] 0 0
Pennsylvania
Country [8] 0 0
United States of America
State/province [8] 0 0
Texas

Funding & Sponsors
Primary sponsor type
Other
Name
University of Colorado, Denver
Address
Country
Other collaborator category [1] 0 0
Government body
Name [1] 0 0
National Institute of Neurological Disorders and Stroke (NINDS)
Address [1] 0 0
Country [1] 0 0
Other collaborator category [2] 0 0
Government body
Name [2] 0 0
National Institutes of Health (NIH)
Address [2] 0 0
Country [2] 0 0
Other collaborator category [3] 0 0
Other
Name [3] 0 0
International Foundation for CDKL5 Research
Address [3] 0 0
Country [3] 0 0

Ethics approval
Ethics application status

Summary
Brief summary
Pathogenic variants in the Cyclin-dependent kinase like 5 (CDKL5) gene cause CDKL5 deficiency
disorder (CDD, MIM 300672, 105830), a severe developmental and epileptic encephalopathy
associated with cognitive and motor impairments and cortical visual impairment. While
capability for disease modifying therapies is accelerating, there is a critical barrier for
clinical trial readiness that may result in failure of these therapies, not due to lack of
efficacy but due to lack of validated outcome measures and biomarkers. The measures and
biomarkers validated here will be adaptable to other developmental and epileptic
encephalopathies.
Trial website
https://clinicaltrials.gov/ct2/show/NCT05558371
Trial related presentations / publications
Olson HE, Daniels CI, Haviland I, Swanson LC, Greene CA, Denny AMM, Demarest ST, Pestana-Knight E, Zhang X, Moosa AN, Fidell A, Weisenberg JL, Suter B, Fu C, Neul JL, Percy AK, Marsh ED, Benke TA, Poduri A. Current neurologic treatment and emerging therapies in CDKL5 deficiency disorder. J Neurodev Disord. 2021 Sep 16;13(1):40. doi: 10.1186/s11689-021-09384-z.
Brock D, Fidell A, Thomas J, Juarez-Colunga E, Benke TA, Demarest S. Cerebral Visual Impairment in CDKL5 Deficiency Disorder Correlates With Developmental Achievement. J Child Neurol. 2021 Oct;36(11):974-980. doi: 10.1177/08830738211019284.
Saldaris J, Weisenberg J, Pestana-Knight E, Marsh ED, Suter B, Rajaraman R, Heidary G, Olson HE, Devinsky O, Price D, Jacoby P, Leonard H, Benke TA, Demarest S, Downs J. Content Validation of Clinician-Reported Items for a Severity Measure for CDKL5 Deficiency Disorder. J Child Neurol. 2021 Oct;36(11):998-1006. doi: 10.1177/08830738211019576. Epub 2021 Aug 11.
Olson HE, Costantini JG, Swanson LC, Kaufmann WE, Benke TA, Fulton AB, Hansen R, Poduri A, Heidary G. Cerebral visual impairment in CDKL5 deficiency disorder: vision as an outcome measure. Dev Med Child Neurol. 2021 Nov;63(11):1308-1315. doi: 10.1111/dmcn.14908. Epub 2021 May 24.
MacKay CI, Bick D, Prokop JW, Munoz I, Rouse J, Downs J, Leonard H. Expanding the phenotype of the CDKL5 deficiency disorder: Are seizures mandatory? Am J Med Genet A. 2020 May;182(5):1217-1222. doi: 10.1002/ajmg.a.61504. Epub 2020 Feb 8.
Dale T, Downs J, Wong K, Leonard H. The perceived effects of cannabis products in the management of seizures in CDKL5 Deficiency Disorder. Epilepsy Behav. 2021 Sep;122:108152. doi: 10.1016/j.yebeh.2021.108152. Epub 2021 Jun 18.
Leonard H, Junaid M, Wong K, Demarest S, Downs J. Exploring quality of life in individuals with a severe developmental and epileptic encephalopathy, CDKL5 Deficiency Disorder. Epilepsy Res. 2021 Jan;169:106521. doi: 10.1016/j.eplepsyres.2020.106521. Epub 2020 Dec 1.
MacKay CI, Wong K, Demarest ST, Benke TA, Downs J, Leonard H. Exploring genotype-phenotype relationships in the CDKL5 deficiency disorder using an international dataset. Clin Genet. 2021 Jan;99(1):157-165. doi: 10.1111/cge.13862. Epub 2020 Oct 20.
Benke TA, Kind PC. Proof-of-concept for a gene replacement approach to CDKL5 deficiency disorder. Brain. 2020 Mar 1;143(3):716-718. doi: 10.1093/brain/awaa055.
Public notes

Contacts
Principal investigator
Name 0 0
Timothy A Benke, MD PhD
Address 0 0
University of Colorado, Denver
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Sharon R Pincus, MA
Address 0 0
Country 0 0
Phone 0 0
303-949-7116
Fax 0 0
Email 0 0
sharon.pincus@cuanschutz.edu
Contact person for scientific queries



Summary Results

For IPD and results data, please see https://clinicaltrials.gov/ct2/show/NCT05558371