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Efficacy Study of Vaginal Mesh for Anterior Prolapse

A Randomized Clinical Trial of Vaginal Mesh for Anterior Prolapse

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00557882
Acronym
VAMP-A
Enrollment
65
Registered
2007-11-14
Start date
2007-06-30
Completion date
2011-11-30
Last updated
2020-10-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cystocele, Pelvic Organ Prolapse, Uterine Prolapse, Vaginal Prolapse

Keywords

prolapse, uterus, mesh, bladder

Brief summary

The primary aim of this double-blind, randomized clinical trial (RCT) is to test the hypothesis that the addition of a standardized technique of interpositional synthetic polypropylene mesh placement improves the one-year outcome of vaginal reconstructive surgery for anterior prolapse compared to traditional vaginal reconstructive surgery without mesh.

Detailed description

Multiple vaginal, abdominal and laparoscopic procedures have been described for surgical correction of pelvic support problems. However, conventional pelvic reconstructive surgeries have been associated with a 20-30% prolapse recurrence rate. The anterior vaginal wall is the site most often recognized as the area of vaginal prolapse recurrence. Minimally invasive surgical procedures using mesh have rapidly developed in the field of pelvic floor reconstruction in an attempt to improve surgical cure rates. Unfortunately, safety and efficacy data have lagged behind the technical advancements. This trial will randomize women with advanced anterior wall prolapse to two treatment arms: vaginal reconstructive surgery with mesh and vaginal reconstructive surgery without mesh. The primary outcome is cure of anterior wall prolapse at one year. Secondary outcomes are cure of apical and posterior wall prolapse, quality-of-life measures and complication rates. Patients will be approached for recruitment only after they have made the decision to undergo vaginal surgery for anterior prolapse. The patient and examiner will be blinded to the surgical treatment assignment. Interim measurement of primary and secondary outcomes will be conducted three months post-operatively. Additional follow-up will be conducted at one-year intervals subsequent to the expected one-year endpoint.

Interventions

DEVICEsynthetic polypropylene mesh

Mesh used will be synthetic monofilament polypropylene. In this trial, patients in the experimental group will undergo interpositional multi-armed mesh placement using trocars for transobturator +/- ischioanal fossa placement at the level of the ischial spine.

Sponsors

Medstar Health Research Institute
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
21 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. women age \> 21 2. diagnosed with stage II-IV vaginal prolapse who desire reconstructive surgery 3. available for 12 months of follow-up 4. able to complete study questionnaires and assessments. 5. available for 12 months follow-up

Exclusion criteria

1. Uterus in place. 2. No anterior vaginal prolapse. 3. Medical contraindications, e.g. current urinary tract, vaginal or pelvic infection, history of pelvic irradiation, history of lower urinary tract malignancy, chronic steroid use or a compromised immune system. 4. Current intermittent self catheterization. 5. Pregnancy or desire for future fertility. 6. Presence of an adnexal or ovarian mass. 7. Shortened vagina. 8. Other laparoscopic or abdominal/pelvic surgery in the past 3 months.\* 9. Known neurologic or medical condition affecting bladder function, e.g. multiple sclerosis, spinal cord injury. 10. Need for surgery requiring an abdominal incision. 11. \<12 months post-partum. (Enrollment can be deferred until time requirement has been met).

Design outcomes

Primary

MeasureTime frame
The Primary Outcome Measure for Objective Treatment Success is Anterior Prolapse, Point Ba at Stage 0 or 1 (Defined as Maximal Descent of the Anterior Wall to Greater Than 1 cm Above the Hymen) at One Year.1 year

Countries

United States

Participant flow

Participants by arm

ArmCount
Mesh
Vaginal reconstructive surgery with synthetic polypropylene mesh synthetic polypropylene mesh: Mesh used will be synthetic monofilament polypropylene. In this trial, patients in the experimental group will undergo interpositional multi-armed mesh placement using trocars for transobturator +/- ischioanal fossa placement at the level of the ischial spine.
32
no Mesh
Vaginal reconstructive surgery without mesh synthetic polypropylene mesh: Mesh used will be synthetic monofilament polypropylene. In this trial, patients in the experimental group will undergo interpositional multi-armed mesh placement using trocars for transobturator +/- ischioanal fossa placement at the level of the ischial spine.
33
Total65

Baseline characteristics

CharacteristicMeshno MeshTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
32 Participants33 Participants65 Participants
Age, Continuous64.4 years
STANDARD_DEVIATION 10.8
63.5 years
STANDARD_DEVIATION 8.9
63.94 years
STANDARD_DEVIATION 9.89
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants3 Participants6 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
29 Participants29 Participants58 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants1 Participants
Sex: Female, Male
Female
32 Participants33 Participants65 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
1 / 321 / 33
other
Total, other adverse events
4 / 321 / 33
serious
Total, serious adverse events
5 / 320 / 33

Outcome results

Primary

The Primary Outcome Measure for Objective Treatment Success is Anterior Prolapse, Point Ba at Stage 0 or 1 (Defined as Maximal Descent of the Anterior Wall to Greater Than 1 cm Above the Hymen) at One Year.

Time frame: 1 year

Population: NIH optimal prolapse cure (Pelvic Organ Prolapse Quantifications System (POP-Q) stage \<1)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
MeshThe Primary Outcome Measure for Objective Treatment Success is Anterior Prolapse, Point Ba at Stage 0 or 1 (Defined as Maximal Descent of the Anterior Wall to Greater Than 1 cm Above the Hymen) at One Year.12 Participants
no MeshThe Primary Outcome Measure for Objective Treatment Success is Anterior Prolapse, Point Ba at Stage 0 or 1 (Defined as Maximal Descent of the Anterior Wall to Greater Than 1 cm Above the Hymen) at One Year.10 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026