ALSSOD1NCT02228915
Analysis of Post-Translational Modifications of a Critical Protein Implicated in Amyotrophic Lateral Sclerosis
An observational study of ALS, run by University of North Carolina, Chapel Hill at 1 site in United States.
Trial summary
The purpose of this research study is to discover and quantitate the differences in post-translational modifications found in the Cu, Zn superoxide dismutase (SOD1) of patients with amyotrophic lateral sclerosis (ALS) as compared to healthy individuals. SOD1 is a known genetic cause of ALS. Read more about this study
- Who is it for?
- Ages 18 to 99 yearsHealthy volunteers can take part
- Conditions the study is for
- ALS
- How many people
- 21 participants
- Where
- 1 siteUnited States
- Study dates
- Aug 2014to 16 Oct 2018
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 99 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: SALS patients SOD1 associated FALS patients Healthy control
Who may be able to join
- SALS patients
- SOD1 associated FALS patients
- Healthy control
Who cannot join
None listed.
Trial locations and contacts
1 site in 1 country.
United States1 site
UNC Neurology ALS clinic
Chapel Hill, North Carolina, 27599
About this study
The purpose of this research study is to discover and quantitate the differences in post-translational modifications found in the Cu, Zn superoxide dismutase (SOD1) of patients with amyotrophic lateral sclerosis (ALS) as compared to healthy individuals. SOD1 is a known genetic cause of ALS. With certain mutations, SOD1 gains a toxic function which leads to motor neuron death.
Read the detailed description
Amyotrophic Lateral Sclerosis (ALS) is a devastating neurodegenerative disease in which mutations in human Cu, Zn Superoxide Dismutase (SOD1) have been identified as a cause of familial ALS (FALS) cases.1-2 It has been shown that mutant SOD1 develops a novel toxic function through experiments demonstrating that many disease mutants maintain enzymatic activity, SOD1-null mice do not exhibit ALS symptoms, and co-expressed wild type protein does not rescue the disease-state.7-11 The majority of cases, however, are not caused directly by mutations of SOD1, instead being caused by a poorly understood interplay of several genes as well as environmental factors, which is often referred to as sporadic ALS (SALS).3 It has been found that FALS and SALS share similar pathology. 4-6 The hSOD1 protein aggregates characteristic of FALS have also been found in SALS patients, furthering the evidence that hSOD1 has an important role in the etiology of ALS in sporadic ALS patients.16-19 The exact mechanism of SOD1-associated toxicity has not yet been elucidated though many disease mutants have been shown to destabilize the SOD1 dimer. In this study we aim to compare the levels of SOD1 post-tra slational modifications in ALS patients to levels in healthy donors and to determine if there are distinct patterns of protein glutathionylation or phosphorylation. Our overall goal is to elucidate a direct mechanism of toxicity in SALS as well as identify potentially critical triggers
- Conditions
- ALS
What is being measured
The primary outcome is the main question the study is designed to answer.
Post-translational modifications (PTMs) of Cu/Zn superoxide dismutase 1
Measured: 6 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 Aug 2014 (estimated)
- Study startAug 2014
- Primary completion14 Oct 2018
- Study completion16 Oct 2018
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for ALSStudies of the same condition, open and under way.
- More trials run by University of North Carolina, Chapel HillThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 21 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of North Carolina, Chapel Hill
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Chafic Karam, MD, Principal investigator, University of North Carolina, Chapel HillNikolay V Dokholyan, PhD, Principal investigator, UNC
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02228915
- Sponsor's protocol ID
- 14-1780
- Acronym
- SOD1
- Status last verified
- Nov 2017
- First submitted
- 27 Aug 2014
- Last updated
- 17 Oct 2018
- Results posted
- No
- Data monitoring committee
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 17 Oct 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Analysis of Post-Translational Modifications of a Critical Protein Implicated in Amyotrophic Lateral Sclerosis
- ClinicalTrials.gov ID
- NCT02228915
- Acronym / sponsor ID
- SOD1 / 14-1780
- Conditions
- ALS
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 21 participants (actual)
- Lead sponsor
- University of North Carolina, Chapel HillUniversity, hospital or other
- Study start
- Aug 2014 (actual)
- Primary completion
- 14 Oct 2018 (actual)
- Study completion
- 16 Oct 2018 (actual)
- First posted
- 29 Aug 2014 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this research study is to discover and quantitate the differences in post-translational modifications found in the Cu, Zn superoxide dismutase (SOD1) of patients with amyotrophic lateral sclerosis (ALS) as compared to healthy individuals. SOD1 is a known genetic cause of ALS. With certain mutations, SOD1 gains a toxic function which leads to motor neuron death.
Detailed description
Amyotrophic Lateral Sclerosis (ALS) is a devastating neurodegenerative disease in which mutations in human Cu, Zn Superoxide Dismutase (SOD1) have been identified as a cause of familial ALS (FALS) cases.1-2 It has been shown that mutant SOD1 develops a novel toxic function through experiments demonstrating that many disease mutants maintain enzymatic activity, SOD1-null mice do not exhibit ALS symptoms, and co-expressed wild type protein does not rescue the disease-state.7-11 The majority of cases, however, are not caused directly by mutations of SOD1, instead being caused by a poorly understood interplay of several genes as well as environmental factors, which is often referred to as sporadic ALS (SALS).3 It has been found that FALS and SALS share similar pathology. 4-6 The hSOD1 protein aggregates characteristic of FALS have also been found in SALS patients, furthering the evidence that hSOD1 has an important role in the etiology of ALS in sporadic ALS patients.16-19 The exact mechanism of SOD1-associated toxicity has not yet been elucidated though many disease mutants have been shown to destabilize the SOD1 dimer. In this study we aim to compare the levels of SOD1 post-tra slational modifications in ALS patients to levels in healthy donors and to determine if there are distinct patterns of protein glutathionylation or phosphorylation. Our overall goal is to elucidate a direct mechanism of toxicity in SALS as well as identify potentially critical triggers
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Ages
- 18 to 99 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- SALS patients SOD1 associated FALS patients Healthy control
Key inclusion criteria (3 listed)
- SALS patients
- SOD1 associated FALS patients
- Healthy control
Key exclusion criteria (0 listed)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Post-translational modifications (PTMs) of Cu/Zn superoxide dismutase 1
Time frame: 6 months
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Oct 2018.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Chafic Karam, MD principal investigator
University of North Carolina, Chapel Hill
Nikolay V Dokholyan, PhD principal investigator
UNC
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of ALS, run by University of North Carolina, Chapel Hill at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 0 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 17 Oct 2018. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Post-translational modifications (PTMs) of Cu/Zn superoxide dismutase 1 (time frame: 6 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Oct 2018.