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Pipelle Versus Manual Vacuum Aspiration Cannula for Endometrial Biopsy in Women With Abnormal Uterine Bleeding

A Comparative Study of Pipelle Versus Manual Vacuum Aspiration Cannula for Endometrial Biopsy

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07731581
Enrollment
80
Registered
2026-07-28
Start date
2026-08-11
Completion date
2027-08-12
Last updated
2026-07-28

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

Conditions

Abnormal Uterine Bleeding (AUB)

Brief summary

women globally, often requiring endometrial tissue sampling for accurate evaluation and diagnosis. Traditional office-based sampling techniques like Pipelle are widely used, but the disposable instruments can be relatively expensive in resource-limited settings. Manual Vacuum Aspiration (MVA) using a flexible cannula is an inexpensive, reusable alternative, but clinical data comparing its performance directly to Pipelle remains limited. The objective of this randomized clinical trial is to compare Pipelle endometrial biopsy and Manual Vacuum Aspiration (MVA) cannula in terms of sample adequacy, patient satisfaction, and post-procedure complications in women presenting with abnormal uterine bleeding. Participants will be randomly assigned to undergo endometrial sampling using either a 4 mm MVA cannula or a Pipelle device without anesthesia or cervical dilation. Samples will be analyzed for histopathological diagnosis, and outcomes such as procedure pain, adequacy of tissue, and complications will be recorded.

Interventions

OTHERManual Vacuum Aspiration (MVA) Cannula

Endometrial sampling using a 4 mm flexible polyethylene MVA cannula connected to a manual vacuum aspiration syringe without dilation or anesthesia.

OTHERPipelle Endometrial Suction Curette

Endometrial biopsy using a flexible Pipelle device operated by pulling the internal piston to create negative pressure without dilation or anesthesia.

Sponsors

University of Health Sciences Lahore
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
SINGLE (Outcomes Assessor)

Masking description

All endometrial biopsy specimens will be evaluated independently by a consultant histopathologist who will be blinded to the participants' group allocation.

Eligibility

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

Inclusion criteria

1. Married women aged 35 years and above. 2. Presentation with abnormal uterine bleeding (AUB), including but not limited to metrorrhagia, menorrhagia, or postmenopausal bleeding. 3. Clinical indication for endometrial sampling for diagnostic evaluation of abnormal uterine bleeding. 4. Patient fit for both MVA and Pipelle procedures, with no contraindications to either method.

Exclusion criteria

1. Pregnancy or suspicion of pregnancy. 2. Acute pelvic inflammatory disease or active genital tract infection. 3. Current use of anticoagulant therapy or presence of bleeding disorders that pose a risk for excessive bleeding during endometrial sampling.

Design outcomes

Primary

MeasureTime frameDescription
Diagnostic Yield for Endometrial PathologyAt the time of histopathological assessment (within 7 days post-procedure)Proportion of patients receiving a definitive histopathological diagnosis (differentiating benign vs. malignant/premalignant conditions) based on microscopic evaluation by a blinded consultant histopathologist.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 29, 2026