NCT04896359

Brief Summary

This is a prospective, randomize, double-blind, and placebo-controlled study to evaluate in patients with clinical criteria for any of the following open surgical procedure: (1) cesarean section; (2) aesthetic surgery like abdominoplasty; (3) orthopedic surgery; and (4) abdominal open surgery \[excluding laparoscopic procedures\] will be invited to receive either a high dose of vitamin C (12.5 g) three times (48 h pre-surgery, immediately before surgery and 48 h post-surgery) or its placebo, to evaluate the tissue repair process using an international validated instrument named Patient and Observer Scar Assessment Scale.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
80

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Mar 2019

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

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

Study Start

First participant enrolled

March 15, 2019

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 3, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 3, 2021

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

May 11, 2021

Completed
10 days until next milestone

First Posted

Study publicly available on registry

May 21, 2021

Completed
Last Updated

October 4, 2021

Status Verified

September 1, 2021

Enrollment Period

2 years

First QC Date

May 11, 2021

Last Update Submit

September 27, 2021

Conditions

Outcome Measures

Primary Outcomes (3)

  • Evaluation of linear scars

    Patient and Observer Scar Assessment Scale (it evaluates in a 0 to 10 scale: vascularity, pigmentation, thickness, relief, pliability and surface area)

    initial assessment, two weeks after surgery

  • Evaluation of linear scars

    Patient and Observer Scar Assessment Scale (it evaluates in a 0 to 10 scale: vascularity, pigmentation, thickness, relief, pliability and surface area)

    second assessment, one month after surgery

  • Evaluation of linear scars

    Patient and Observer Scar Assessment Scale (it evaluates in a 0 to 10 scale: vascularity, pigmentation, thickness, relief, pliability and surface area)

    third assessment, three months after surgery

Study Arms (2)

Vitamin C

EXPERIMENTAL

i.v. infusion of 12.5 g vitamin C 48 h before surgery, immediately before surgery, and 48 h after surgery

Dietary Supplement: Vitamin C

Control

PLACEBO COMPARATOR

i.v. infusion of placebo 48 h before surgery, immediately before surgery, and 48 h after surgery

Other: Placebo

Interventions

Vitamin CDIETARY_SUPPLEMENT

12.5 grams of ascorbic acid

Vitamin C
PlaceboOTHER

vehicle

Control

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Older than 18 years.
  • Susceptible for any of the following surgical procedures: (1) cesarean section; (2) aesthetic abdominal plastic surgery; (3) orthopedic prosthetic replacement surgery
  • Voluntary consent to participate

You may not qualify if:

  • Known allergy to the vitamin C
  • Known problems with wounds healing
  • Kidney disease (including lithiasis) or gout

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital de los Valles

Quito, Pichincha, Ecuador

Location

MeSH Terms

Interventions

Ascorbic Acid

Intervention Hierarchy (Ancestors)

Sugar AcidsAcids, AcyclicCarboxylic AcidsOrganic ChemicalsHydroxy AcidsCarbohydrates

Study Officials

  • Enrique Teran

    Universidad San Francisco de Quito

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

May 11, 2021

First Posted

May 21, 2021

Study Start

March 15, 2019

Primary Completion

March 3, 2021

Study Completion

March 3, 2021

Last Updated

October 4, 2021

Record last verified: 2021-09

Locations