NCT04672226

Brief Summary

PDE MAX is a single arm prospective, feasibility study in up to 15 participants aged one (1) year and over of PDE MAX for the dietary management of Pyridoxine Dependent Epilepsy.

Trial Health

90
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
11

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jun 2021

Typical duration for not_applicable

Geographic Reach
2 countries

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 3, 2020

Completed
14 days until next milestone

First Posted

Study publicly available on registry

December 17, 2020

Completed
6 months until next milestone

Study Start

First participant enrolled

June 1, 2021

Completed
2.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 20, 2023

Completed
11 days until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2023

Completed
Last Updated

February 16, 2024

Status Verified

February 1, 2024

Enrollment Period

2.1 years

First QC Date

December 3, 2020

Last Update Submit

February 15, 2024

Conditions

Keywords

PDE

Outcome Measures

Primary Outcomes (3)

  • Product acceptability rated on a Likert scale by the patient after eight week intake

    Assessment of participant's acceptability following an eight week intake of the study product

    8 weeks

  • Questionnaire of self-reported changes in gastrointestinal tolerance during eight week intake

    Assessment of participant's gastrointestinal tolerance during the eight week intake of the study product

    8 weeks

  • Questionnaire of self-reported adherence to the prescribed amount of study product

    Assessment of participant's adherence to prescribed amount during the eight week intake of the study product

    8 weeks

Secondary Outcomes (16)

  • Change in concentration from baseline, after an 8-week intake of PDE MAX, of pipecolic acid in plasma.

    Day 0 (visit 1) to day 56 (visit 2)

  • Change in concentration from baseline, after an 8-week intake of PDE MAX, of 6-oxo-pipecolic acid in bloodspots

    Day 0 (visit 1) to day 56 (visit 2)

  • Change in concentration from baseline, after an 8-week intake of PDE MAX, of 6-oxo-pipecolic acid in plasma

    Day 0 (visit 1) to day 56 (visit 2)

  • Change in concentration from baseline, after an 8-week intake of PDE MAX, of 6-oxo-pipecolic acid in urine

    Day 0 (visit 1) to day 56 (visit 2)

  • Change in concentration from baseline, after an 8-week intake of PDE MAX, of P6C in bloodspots

    Day 0 (visit 1) to day 56 (visit 2)

  • +11 more secondary outcomes

Study Arms (1)

PDE MAX

EXPERIMENTAL

PDE MAX will be prescribed by the study dietitian based on the patient's individual requirement.

Dietary Supplement: PDE MAX

Interventions

PDE MAXDIETARY_SUPPLEMENT

PDE MAX will be prescribed by the study dietitian based on the patient's individual requirement.

PDE MAX

Eligibility Criteria

Age1 Year+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of Pyridoxine Dependent Epilepsy (PDE), biochemically and/or genetically confirmed.
  • Males or females aged one (1) year and above. Any participant aged 16 years and over at screening must have the capacity to consent for themselves.
  • Currently following a lysine-restricted diet for a minimum of four (4) weeks prior to screening.
  • Willing to take the study product and follow advice given by the dietitian.
  • Willingly given, written, informed consent from patient or parent/guardian.
  • Willingly given, written assent (if appropriate).

You may not qualify if:

  • Inability to comply with the study protocol, in the opinion of the investigator.
  • Use of additional macro/micronutrient supplements during the study period, unless clinically indicated and prescribed by the investigator, such as but not limited to arginine and pyridoxine. In which case, supplementation must have started four (4) weeks prior to screening with no anticipated changes to intakes during the study duration.
  • Participants who are pregnant / breastfeeding at the start of the study or planning to become pregnant during the study period. Participants of child-bearing potential will be required to undergo pregnancy test prior to enrolment.
  • N.B.: Participants who become pregnant unexpectedly during this study may, in consultation with their doctor, continue on the study's dietary product if they wish but will not have any investigations that would not normally be carried out during pregnancy.
  • Allergy to any ingredient present in the study product.
  • Other concurrent medical or psychiatric conditions, which, in the opinion of the Investigator, would place the subject at increased risk, preclude obtaining voluntary consent/assent or compliance with required study procedures, or would confound the objectives of the study.
  • Is participating in any other interventional study and has received any other investigational drug, product or device within 30 days prior to screening or are taking part in a non-medication study which, in the opinion of the investigator, would interfere with study compliance or outcome assessments.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Radboud UMC

Nijmegen, 6500, Netherlands

Location

Great Ormond Street Hospital for Children

London, United Kingdom

Location

Study Officials

  • Clara van Karnebeek

    Amsterdam University Medical Centers

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 3, 2020

First Posted

December 17, 2020

Study Start

June 1, 2021

Primary Completion

July 20, 2023

Study Completion

July 31, 2023

Last Updated

February 16, 2024

Record last verified: 2024-02

Data Sharing

IPD Sharing
Will not share

Locations