Skip to content

Evening Primorose Oil Versus Misoprostol in Cervical Preparation Before Operative Hysteroscopy

Comparative Study Between Evening Primorose Oil Versus Misoprostol in Cervical Preparation Before Operative Hysteroscopy

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07641595
Enrollment
230
Registered
2026-06-11
Start date
2024-11-12
Completion date
2026-05-21
Last updated
2026-06-11

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

Conditions

Cervical Preparation, Evening Primorose Oil, Hysteroscopy, Misoprostol

Brief summary

This study aimed to compare the efficacy of misoprostol versus intravaginal Evening Primrose Oil capsule as a cervical ripening agent prior to operative hysteroscopy.

Detailed description

Hysteroscopy is an operative procedure in which the gynaecologist directly examines the uterine cavity using a small telescopic instrument (hysteroscope) inserted via the vagina and the cervix. Misoprostol is a synthetic Prostaglandins (PGE1) analogue that has been found to be a safe and inexpensive agent for cervical ripening. It is one of the most studied cervical ripening agents used prior to hysteroscopy. Evening primrose oil is derived from the seeds of the evening primrose (Oenothera biennis) plant. It is rich in the essential fatty acid gamma linolenic acid, a fatty acid that the body converts to a hormone like substance called prostaglandin E1.

Interventions

OTHERPrimorose Oil

Patients received evening Primorose Oil.

OTHERMisoprostol

Patients received Misoprostol.

Sponsors

Sohag University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Age range from 18-65 years * Patients need operative hysteroscopy

Exclusion criteria

* Pregnant women. * Incompetent cervix. * History of cervical operations like conization. * Contraindications for both drugs (women with bleeding disorders, consumers of anticoagulants, schizophrenic individuals receiving phenothiazine, epileptics and those on medication for antihypertension).

Design outcomes

Primary

MeasureTime frameDescription
Assessment of cervical RipeningDuring operative hysteroscopy (2 hours after vaginal administration of the study medication)Cervical ripening assessed by the interval between insertion of Hegar dilators size 3 and size 10, and by the size of the first Hegar dilator requiring forceful insertion.

Secondary

MeasureTime frameDescription
Cervical BleedingDuring operative hysteroscopy (2 hours after vaginal administration of the study medication)Occurrence of cervical bleeding during cervical entry was recorded.
False Passage FormationDuring operative hysteroscopy (2 hours after vaginal administration of the study medication)Occurrence of false passage during cervical instrumentation was recorded.
Cervical LacerationDuring operative hysteroscopy (2 hours after vaginal administration of the study medication)Occurrence of cervical laceration during cervical dilatation was recorded.
Incidence of drug-related adverse effectsUntil completion of the procedure (Up to 2 hours)Incidence of drug-related adverse effects such as the occurrence of nausea, vomiting, diarrhea, fever, and severe abdominal pain were recorded.

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 12, 2026