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Skin NeoplasmsNCT02248584

VITAMIN E, C and ZINC IN PATIENTS WITH SKIN CANCER: INFLUENCE ON OXIDATIVE STRESS AND INFLAMMATORY STATE

A study testing Vitamin C, E and Zinc in people with Skin Neoplasms, run by University of Campinas, Brazil.

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

The objective of this study was to evaluate the effects of supplementary antioxidant therapy on the levels of biomarkers and inflamatory citocines in patients with a previous history of non-melanoma skin cancer treated with surgery. This was a double-blind, randomized, placebo-controlled trial. Read more about this study

Who is it for?
Ages 20 to 90 years
Conditions the study is for
Skin Neoplasms
What is being tested?
Vitamin C, E and Zinc
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
60 participants
Where
No sites listed yet
Study dates
Jan 2011to Dec 2011
Phase
Interventional
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 20 to 90 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • patients who had non-melanoma skin cancer (squamous cell carcinoma or basal cell carcinoma) and who were treated with surgery
  • age ≥20 years
  • absence of comorbidities such as type 1 diabetes, severe heart disease, hepatic dysfunction, renal failure requiring dialysis, HIV infection, and melanoma skin cancer
  • no history of chemotherapy or radiotherapy in the previous 6 months
  • absence of severe psychiatric disease that limited comprehension
  • not taking any vitamin and/or mineral supplementation.

Who cannot join

  • subjects did not complete the entire course of supplemental therapy.

About this study

Official title: SUPPLEMENTATION OF VITAMIN E, C and ZINC IN PATIENTS WITH NON-MELANOMA SKIN CANCER: INFLUENCE ON OXIDATIVE STRESS AND INFLAMMATORY STATE

The objective of this study was to evaluate the effects of supplementary antioxidant therapy on the levels of biomarkers and inflamatory citocines in patients with a previous history of non-melanoma skin cancer treated with surgery. This was a double-blind, randomized, placebo-controlled trial. Patients were randomized into two groups, one receiving placebo (n=34) and the other receiving supplementary antioxidant therapy (n=26) with vitamin C (50 mg), vitamin E (60 mg), and zinc (40 mg) for 60 days. Blood samples were obtained from patients, and the levels of oxidative stress biomarkers, including 8-isoprostane, nitrite, thiobarbituric acid reactive substances, and total antioxidant capacity, were measured, as well as the inflamatory citocines (IL-1, IL-6, IL-10, TNF alfa) and it was evaluated at two different times: (1) one day before the start of supplementation or placebo administration and (2) at 60 days after intervention. Statistical analyses were performed with the SAS System for Windows 9.3 program and data were analyzed using ANOVA for repeated measures test.

Conditions
Skin Neoplasms
Being tested
Vitamin C, E and Zinc
Medical subject headings
Skin Neoplasms

What participants receive

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

  • Vitamin C, E and ZincDietary supplement

    Capsule containing vitamin C (50 mg; CVS Quality, USA), vitamin E (60 mg; Nature´s Bounty, USA), and zinc (40 mg; CVS Quality, USA) per day for 60 days.

Study groups in NCT02248584
Study groupRoleWhat they receive
Vitamin E, C and ZincExperimentalCapsule containing vitamin C (50 mg; CVS Quality, USA), vitamin E (60 mg; Nature´s Bounty, USA), and zinc (40 mg; CVS Quality, USA) per day for 60 days.
Receives: Dietary Supplement: Vitamin C, E and Zinc
PlaceboPlacebo comparatorCapsule containing only lactose

What is being measured

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

  1. OXIDATIVE STRESS BIOMARKERS

    8-isoprostane, Thiobarbituric Acid Reactive Substances (TBARS), Nitrite, Total Antioxidant Capacity (TAC)

    Measured: one day before the start of supplementation or placebo administration and at 60 days after intervention

  2. INFLAMMATORY STATE

    IL-1, IL-6, IL-10, TNF alfa

    Measured: one day before the start of supplementation or placebo administration and at 60 days after intervention

Timeline

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

  1. First posted25 Sep 2014 (estimated)
  2. Study startJan 2011
  3. Primary completionDec 2011
  4. Study completionDec 2011

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 N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02248584
Sponsor's protocol ID
Betania
Status last verified
Sep 2014
First submitted
22 Sep 2014
Last updated
25 Sep 2014
Results posted
No

Publications

  • Freitas Bde J, Lloret GR, Visacri MB, Tuan BT, Amaral LS, Baldini D, de Sousa VM, de Castro LL, Aguiar JR, Pincinato Ede C, Mazzola PG, Moriel P. High 15-F2t-Isoprostane Levels in Patients with a Previous History of Nonmelanoma Skin Cancer: The Effects of Supplementary Antioxidant Therapy. Biomed Res Int. 2015;2015:963569. doi: 10.1155/2015/963569. Epub 2015 Oct 5.

    PubMed 26509174

Questions about this trial

What is this clinical trial studying?

A study testing Vitamin C, E and Zinc in people with Skin Neoplasms, run by University of Campinas, Brazil.

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 6 inclusion and 1 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 25 Sep 2014. Status can change between updates, so confirm with the study contact before making plans.

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.

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?

OXIDATIVE STRESS BIOMARKERS (time frame: one day before the start of supplementation or placebo administration and at 60 days after intervention). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02248584, which also lists 1 linked publication.

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 25 Sep 2014.

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