ClinicalTrials.gg
CompletedNCT04730674Updated Jan 29, 2021

Predictive Factors Affecting the Efficacy of Local Tetracycline Injection for Treatment of Post-mastectomy Seroma.

An interventional study of tetracycline mixed with xylocaine in Post-mastectomty Seroma, sponsored by Zagazig University. Completed at 1 site in Egypt. Open to female participants. Per ClinicalTrials.gov, last updated 2021-01-29.

Sponsored by Zagazig University · Not applicable, Interventional, and Diagnostic

From the registry’s dates

  • Registered 1 year after the study started (first participant enrolled Jan 2020, registered Jan 2021).
Phase
Not applicable
Study type
Interventional
Enrollment
18
Allocation
Not applicable
Sex
Female
01

Study summary

female patients with established diagnosis of post-mastectomy seroma following modified radical mastectomy, were treated by local injection of tetracycline after the seroma fluid was aspirated, then a crepe bandage was applied over the mastectomy area. Then after 5 days the patient were examined again for seroma re-collection or the presence of complications. The amount of seroma aspirated in each session.

Read the detailed description

In this study, 18 patients with established diagnosis of post-mastectomy seroma were included. All of them were females undergoing modified radical mastectomy where seroma appeared after drain removal.

The age, co-morbidities, total leukocytic count (as an indicator of infection), serum albumin and tumour size and pathology for all of them were recorded. Then we interfered with our tetracycline injection technique for the treatment of seroma.

All the patients were consented regarding this therapeutic technique explaining the expected possible occurrence of some pain during and after injection, other complications like wound infection or flap necrosis necessitating further intervention. Moreover, repetition of the technique may be needed

In our technique the following was adopted:

  1. First, the seroma fluid was aspirated completely using a 20 cc syringe while the patient lying flat and the needle inserted in the most dependent area
  2. Then, 10 cc of saline containing 2 gm of tetracycline mixed with 5 ml of 2% xylocaine (as a pain relieving agent) was injected at the seroma bed.
  3. After completion of injection, a crepe bandage was applied over the mastectomy area (flaps covering the seroma bed)
  4. Then after 5 days the patient were examined again for seroma re-collection or the presence of complications as infection or flap necrosis. If there were any re-collection, the tetracycline injection procedure would be repeated.

The amount of seroma aspirated in each session in addition to the complications if present were recorded.

02

Conditions studied

  • Post-mastectomty Seroma

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03

In context

Seroma

101 studies on the registry are indexed under Seroma; 22 are open to participants now.

This study's enrollment of 18 is below the median of 100 across 92 interventional studies indexed under Seroma.

Browse Seroma studies →

Lead sponsor

Zagazig University is the lead sponsor of 459 studies on the registry; 77 are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

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

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
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

  • any patient with post-mastectomy seroma following modified radical mastectomy after removal of drain
  • no signs of infection or flap necrosis

Exclusion criteria

Exclusion Criteria:

  • patients with post-mastectomy seroma following modified radical mastectomy with drain still in
  • if signs of infection or flap necrosis present
05

Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
18 participants (actual)

Study arms

  • Experimental
    post-mastectomty seroma group

    female patients with established diagnosis of post-mastectomy seroma following modified radical mastectomy, were treated by local injection of tetracycline after the seroma fluid was aspirated, then a crepe bandage was applied over the mastectomy area. Then after 5 days the patient were examined again for seroma re-collection or the presence of complications. The amount of seroma aspirated in each session.

    Drug: tetracycline mixed with xylocaine

Interventions

  • Drugtetracycline mixed with xylocaine

    10 cc of saline containing 2 gm of tetracycline mixed with 5 ml of 2% xylocaine (as a pain relieving agent) was injected at the seroma bed.

06

What researchers measure

Primary outcomes

  1. The number of injection sessions to reach complete resolution of seroma

    number of injection sessions to reach complete resolution of seroma

    Time frame: 5 days

07

Study locations

1 site
  • Faculty of Medicine
    Zagazig, Sharqia 44519, Egypt
08

References and documents

Individual participant data

Plan to share: Undecided

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

Ran from Jan 2020 to primary completion in Jun 2020, 5 months.

Of 43 non-industry interventional studies with no phase under Seroma, half reached primary completion within 34 months of starting (the median), counting those still running; a quarter within 17 and three quarters within 65. This study's 5 months is below that.

Counting every sponsor, half of 44 studies reached it within 34 months; a quarter within 17 and three quarters within 65.

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

Registered
Jan 16, 2021
First posted
Jan 29, 2021
StartActual
Jan 1, 2020
Primary completionActual
Jun 30, 2020
CompletionActual
Jun 30, 2020
Last update
Jan 29, 2021
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 Jan 29, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04730674
Lead sponsor
Zagazig University
Responsible party
Joseph Rizk Awad (lecturer of surgery, faculty of human medicine, Zagazig University) — Principal investigator
First posted
Jan 29, 2021
Start date
Jan 1, 2020
Primary completion
Jun 30, 2020
Completion
Jun 30, 2020
Last update
Jan 29, 2021

Oversight

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

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This study is completed, as verified in Jan 2021. You cannot join it, but the record below documents what was studied.

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