ClinicalTrials.gg
Not yet recruitingNCT07408960CO2-BREASTUpdated Feb 13, 2026

CO2Lift and T-Junction Breakdown Rates Evaluation After Breast Reduction Surgery Pilot Trial

An interventional study of Carboxygel and Vaseline in Wound Breakdown, Breast Reduction and Surgical Wound, sponsored by University of Calgary. Not yet recruiting. Open to female participants aged 18 Years to 85 Years. Per ClinicalTrials.gov, last updated 2026-02-13.

Sponsored by University of Calgary · Not applicable, Interventional, and Supportive care

Phase
Not applicable
Study type
Interventional
Enrollment
10
Allocation
Randomized
Ages
18 Years to 85 Years
Sex
Female
01

Study summary

The goal of this pilot study is to determine the feasibility of a larger randomized controlled trial evaluating CO₂Lift® Pro Carboxy Gel to reduce wound breakdown after bilateral breast reduction in adult female patients undergoing elective bilateral breast reduction surgery. The main question it aims to answer is: Is it feasible to recruit, retain, and treat patients while maintaining blinding and monitoring safety?

Exploratory questions include: (1) Does CO₂Lift® reduce the incidence of wound breakdown compared with placebo? (2) Is CO₂Lift® safe and well-tolerated in the postoperative period?

Researchers will compare CO₂Lift® applied to one breast to placebo (Vaseline®) applied to the contralateral breast to see if CO₂Lift® can improve wound healing and tissue oxygenation.

Participants will:

  • Undergo bilateral breast reduction surgery.
  • Receive CO₂Lift® on one breast and placebo on the other, starting immediately after surgery and daily in clinic from postoperative days 1 to 6.
  • Attend weekly postoperative follow-up visits for 12 weeks for wound assessment and monitoring of adverse events.
  • Have standardized photographs and near-infrared spectroscopy measurements taken to evaluate tissue oxygenation and healing.
02

Conditions studied

  • Wound Breakdown
  • Breast Reduction
  • Surgical Wound
  • Breast Surgery
03

In context

Surgical Wound Dehiscence

48 studies on the registry are indexed under Surgical Wound Dehiscence; 14 are open to participants now.

This study's planned enrollment of 10 is below the median of 78 across 37 interventional studies indexed under Surgical Wound Dehiscence.

Browse Surgical Wound Dehiscence studies →

Lead sponsor

University of Calgary is the lead sponsor of 703 studies on the registry; 196 are open to participants now.

Of its 10 completed or terminated interventional studies of FDA-regulated products, 2 (20%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 85 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Female patients aged 18 to 85 years
  • Undergoing bilateral reduction mammoplasty using an inverted-T (Wise pattern) technique
  • (ASA) physical status classification I-III
  • Able and willing to provide
  • Willing and able to comply with study procedures and follow-up visits

Exclusion criteria

Exclusion Criteria:

  • Prior radiation therapy to either breast
  • Prior breast reduction surgery to either breast
  • Known allergy or sensitivity to CO2Lift®, Vaseline®, or any of the ingredients
  • Pregnant or breastfeeding
  • History of therapy
  • History of keloid formation
  • Active local or systemic infection at the time of surgery
  • Current smoker or history of substance abuse (including alcohol or illicit drugs)
  • Use of asymmetrical breast reduction techniques
  • Anticipated inability to complete follow-up or loss to follow-up
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

ASA physical status

The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

05

Study design

Phase
Not applicable
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
10 participants (estimated)

Study arms

  • Experimental
    Treated breast

    CO2 Lift Pro® Carboxygel treated breast

    Other: Carboxygel

  • Placebo comparator
    Placebo breast

    Vaseline® control breast

    Other: Vaseline

Interventions

  • OtherCarboxygel

    The gel will be applied to cover the entire T-junction after breast reduction surgery, once a day for 7 days.

    Also known as: CO2 Lift Pro

  • OtherVaseline

    Vaseline will be applied to the entire T-junction after breast reduction surgery once a day for 7 days

    Also known as: Petroleum jelly, Petrolatum

06

What researchers measure

Primary outcomes

  1. Recruitment Rate

    Number of participants enrolled per month during the recruitment period.

    Time frame: Through study recruitment completion, an average of 1 year

  2. Retention Rate

    Proportion of enrolled participants completing the 12-week follow-up period.

    Time frame: Up to 12 weeks postoperatively.

  3. Incidence of Treatment-Related Adverse Events

    Number of participants experiencing any treatment-related adverse event, including local skin reactions.

    Time frame: Postoperative days 0-7 days

  4. Incidence of Re-operation

    Number of participants requiring surgical re-intervention related to wound complications.

    Time frame: Up to 12 weeks postoperatively

Secondary outcomes

  1. Incidence of T-Junction Breakdown

    Presence of wound dehiscence at the T-junction, assessed by blinded adjudication (Proportion of breasts with breakdown (%)).

    Time frame: Up to 12 weeks postoperatively.

  2. Time to Wound Healing

    Number of days from surgery to complete epithelialization of the T-junction.

    Time frame: Up to 12 weeks postoperatively

  3. Tissue Oxygen Saturation at the T-Junction

    Change in tissue oxygen saturation (StO₂) measured using near-infrared spectroscopy before and after treatment application.

    Time frame: Postoperative days 0-6

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No — De-identified individual participant data will not be shared outside the study team due to the small sample size and the potential risk of participant re-identification. Aggregate study results will be reported in publications and presentations.

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Apr 2026; primary completion for Dec 2027, 20 months later.

Of 15 interventional studies with no phase under Surgical Wound Dehiscence, half reached primary completion within 21 months of starting (the median), counting those still running; a quarter within 17 and three quarters within 32. This study's planned 20 months is close to that.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 28, 2025
First posted
Feb 13, 2026
StartEst.
Apr 1, 2026
Primary completionEst.
Dec 31, 2027
CompletionEst.
Dec 31, 2027
Last update
Feb 13, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 13, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07408960
Responsible party
Justin Yeung (Principal Investigator, University of Calgary) — Principal investigator
First posted
Feb 13, 2026
Start date
Apr 1, 2026 (estimated)
Primary completion
Dec 31, 2027 (estimated)
Completion
Dec 31, 2027 (estimated)
Last update
Feb 13, 2026

Study contacts

Merry Faye Graff, MSc
Contact
merryfaye.graff1@ucalgary.ca
5876642280

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Feb 2026. You cannot join it, but the record below documents what was studied.

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