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Patients at Risk for MelanomaPhase 2NCT01612221

Oral N-acetylcysteine for Protection of Human Nevi Against UV-induced Oxidative Stress/Damage in Vivo

A Phase 2 study testing N-acetylcysteine in people with Patients at Risk for Melanoma, run by University of Utah at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a phase II intervention to propose a new melanoma chemoprevention agent. The investigators believe oxidative stress/damage in nevi is a probable indication for melanoma risk, and propose that reduced melanoma risk in humans can be inferred by protection of nevi from ultraviolet light (UV)-induced oxidative… Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Patients at Risk for Melanoma
What is being tested?
N-acetylcysteine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
100 participants
Where
1 siteUnited States
Study dates
Sep 2012to Feb 2016
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Must have at least 2 nevi (each >6 mm diameter) not clinically suspicious for melanoma that can be biopsied.
  • Must be able to receive informed consent and sign an approved consent form that conforms to federal and institutional guidelines.

Who cannot join

  • The patient is a minor (< 18 years old).
  • The patient cannot speak/understand English or Spanish. (NOTE: A Spanish consent form and certified interpreter can be made available if needed)
  • The patient is pregnant. (NOTE: All female patients who have not had a hysterectomy and are not post-menopausal (i.e. post-menopausal for 1 year and not of child-bearing potential) will have a urine pregnancy test.)
  • The patient is a prisoner, critically or mentally ill, or otherwise incapacitated or considered vulnerable.
  • The patient has history of allergic reaction to NAC.
  • The patient has history of severe asthma.
  • The patient has been taking NAC or any other oral antioxidant.
  • The patient has recent history (i.e., 3 months) of sunless tanning (tanning bed) or extensive sunburn.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Huntsman Cancer Institute

    Salt Lake City, Utah, 84112

Other trials in United States

About this study

Official title: A Phase II Placebo-controlled Intervention Trial of Oral N-acetylcysteine (NAC) for Protection of Human Nevi Against UV-induced Oxidative Stress/Damage in Vivo

This is a phase II intervention to propose a new melanoma chemoprevention agent. The investigators believe oxidative stress/damage in nevi is a probable indication for melanoma risk, and propose that reduced melanoma risk in humans can be inferred by protection of nevi from ultraviolet light (UV)-induced oxidative changes. The investigators will 1) evaluate whether administration of NAC around the time of UV exposure will reduce melanoma risk in high-risk patient populations with genetic susceptibility to UV-induced oxidative stress, and 2) examine key genetic variants that will identify which individuals are most likely to benefit from chemoprotection.

Being tested
N-acetylcysteine, Placebo arm

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • N-acetylcysteineDrug

    Also called NAC

    N-acetylcysteine (NAC), 1200 mg Oral route 2 doses

  • Placebo armOther

    Sterile normal saline, diluted into 25 cc tomato juice, orally, x 1 dose. Then repeated 24 hours later.

Study groups in NCT01612221
Study groupRoleWhat they receive
Patients receiving N-acetylcysteineExperimentalPatients receiving NAC (N-acetylcysteine)
Receives: Drug: N-acetylcysteine
Placebo GroupPlacebo comparatorParticipants not receiving NAC (N-acetylcysteine)
Receives: Other: Placebo arm

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. UV-induced Oxidative Stress in Irradiated and Unirradiated Nevi

    Differences in the median percent nevus with 8-OG expression in UV-irradiated nevi compares with unirradiated nevi.

    Measured: 3.5 years

Secondary outcomes (1)
  1. Transcriptional Markers of UV-induced Oxidative Stress in Nevi

    Biomarkers susceptible to UV-induced damage protected by NAC (N-acetylcysteine) in irradiated and unirradiated nevi

    Measured: 3.5 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Jun 2012 (estimated)
  2. Study startSep 2012
  3. Primary completionFeb 2016
  4. Study completionFeb 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
100 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01612221
Sponsor's protocol ID
HCI50308
Status last verified
Jun 2017
First submitted
31 May 2012
Last updated
31 Jul 2017
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing N-acetylcysteine in people with Patients at Risk for Melanoma, run by University of Utah 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 2 inclusion and 8 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 31 Jul 2017. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 31 Jul 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

UV-induced Oxidative Stress in Irradiated and Unirradiated Nevi (time frame: 3.5 years). 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 31 Jul 2017; AzTrials last refreshed its copy on 8 Nov 2026.

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