Effects of Vitamin B3 in Patients With Ataxia Telangiectasia

NCT ID: NCT03962114

Last Updated: 2022-07-25

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE2
• Total Enrollment: 24 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2019-03-18
• Study Completion Date: 2020-03-01

Brief Summary

This clinical trial investigates the effects of nicotinamide riboside (vitamin B3) on the disease course of patients with ataxia telangiectasia.

Patients will be treated during four consecutive months with nicotinamide riboside (25mg/kg/day), followed by a washout period of two months.

Main study parameters/endpoints: Ataxia, dysarthria, quality of life, laboratory parameters.

Detailed Description

Rationale: Ataxia Telangiectasia (A-T) is an autosomal recessively inherited neurodegenerative disorder, with a high cancer risk, that also affects the immune and respiratory system. Therapy for A-T is restricted to symptomatic treatment including rehabilitation care, combined with infection prevention and treatment, and screening for pulmonary dysfunction and malignancies. A-T is caused by mutations in the ATM gene. The ATM protein plays a pivotal role in more than 100 different biochemical processes, among which cellular energy metabolism, cell signaling, and DNA repair. Nicotinamide adenine dinucleotide (NAD+) is an essential molecule in many of these processes and studies have shown that NAD+ deficiency plays a role in disease mechanisms underlying DNA repair disorders such as A-T. NAD+ is available in food, but can also be synthesized in the body from its precursors nicotinamide, nicotinic acid, and nicotinamide riboside (NR), as a group called "vitamin B3". Treatment of experimental A-T animal models with NR showed beneficial effects. The aim of this study is to investigate whether treatment with NR during a period of six months may have positive effects on the disease course of patients with A-T.

Objective: To investigate the effects of NR on the disease course of patients with ataxia telangiectasia.

Study design: Single center, interventional, explorative, open-label proof of concept study.

Study population: Patients with A-T (age >2 years).

Intervention (if applicable): Patients will be treated with nicotinamide riboside (25mg/kg/day), during four consecutive months, followed by a washout period of two months.

Main study parameters/endpoints: Ataxia, dysarthria, quality of life, laboratory parameters.

Conditions

Ataxia Telangiectasia; ATM Gene Mutation

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Intervention group

treatment with vitamin B3

Group Type: EXPERIMENTAL

Vitamin B3

Intervention Type: DIETARY_SUPPLEMENT

capsules with niagen

Interventions

Vitamin B3

capsules with niagen

Intervention Type: DIETARY_SUPPLEMENT

Other Intervention Names

Nicotinamide riboside

Eligibility Criteria

Inclusion Criteria

• A-T patients who visit our outpatient clinic.
• Genetically confirmed diagnosis of A-T by the identification of pathogenic mutations of the ATM gene.
• Age ≥ 2 years or older and bodyweight ≥ 12 Kg.
• Informed consent.

Exclusion Criteria

• Additional medical condition or illness that impair the patient's ability to participate in the study (e.g. actual treatment of a malignancy, active infection, poorly controlled diabetes mellitus, hypertension, organ failure, clinically significant hematological or biochemical abnormalities different from the usual abnormalities in A-T)
• Elevated serum transaminases (> 2 times upper limit of normal)
• Participation in another interventional study at start of the study or during the study
• Pregnancy.
• Breast feeding.

• Minimum Eligible Age: 2 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

A-T Children's Project

OTHER

Sponsor Role: collaborator

Twan foundation (https://twanfoundation.nl)

UNKNOWN

Sponsor Role: collaborator

Radboud University Medical Center

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Michel Willemsen, Prof.

Role: PRINCIPAL_INVESTIGATOR

michel.willemsen@radboudumc.nl

Locations

Radboudumc

Nijmegen, , Netherlands

Countries

Netherlands

Other Identifiers

NL68197.091.18

Identifier Type: -

Identifier Source: org_study_id