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Treatment of pregnancy that occurs in cesarean scar with the aim of preserving the uterus: comparison between two minimally invasive methods

Conservative treatment of Ectopic Pregnancy in Cesarean Scar with Local Injection of Methotrexate guided by Transvaginal Ultrasonography versus Chemoembolization via Utterine Artery: a prospective randomized multicentric study

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-22hc4rm
Enrollment
Unknown
Registered
2024-06-26
Start date
2023-01-02
Completion date
Unknown
Last updated
2025-10-27

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

Conditions

Cicatrix

Interventions

This is a randomized, non-inferiority, multicenter, two-arm clinical trial that will follow the CONSORT guidelines. Randomization will be carried out in a few steps: generation of the random sequence
allocation and allocation blinding (the sequence will remain restricted in a telephone exchange)
implementation (the sequence will be generated by one of the researchers, the patients will be included and allocated to one of the treatments by the doctor on duty responsible for the ectopic pregnan
blinding (blinding will not be carried out for the intervention once allocated)
and statistical analysis (to verify that there was no crossing of the established delta (14.2%), the confidence interval of the difference between two independent proportions will be used, as describe

Sponsors

Escola Paulista de Medicina da Universidade Federal de São Paulo
Lead Sponsor
Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo
Collaborator
Faculdade de Ciências Médicas da Universidade Estadual de Campinas
Collaborator
Faculdade de Medicina da Universidade de Brasília
Collaborator
Faculdade de Medicina da Universidade Federal do Rio Grande do Sul
Collaborator
Setor de Ciências da Saúde da Universidade Federal do Paraná
Collaborator
Faculdade de Medicina da Universidade Federal de Minas Gerais
Collaborator

Eligibility

Sex/Gender
Female
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 18 years of age or older; Hemodynamic stability, defined as diastolic blood pressure greater than or equal to 60 mmHg and systolic blood pressure greater than or equal to 90 mmHg, heart rate less than 100 bpm, and capillary refill time less than or equal to 3 seconds; Gestational age less than 12 weeks; Intact gestational sac in topography of the cesarean scar with embryo with heartbeat; Absence of signs of peritonism; Pregnancy in the exogenous cesarean section scar (COS-1); Myometrial mantle less than 5mm; Desire for a future pregnancy or not wanting to have a hysterectomy; Ease of returning to the hospital if necessary; Signed consent form

Exclusion criteria

Exclusion criteria: Hemoglobin less than 10 g/dl; Leukopenia (leukocytes less than 2,000 cells/mm3); Thrombocytopenia (platelets less than 100,000/mm3); Immunodeficiency, defined by the use of immunosuppressive drugs such as corticoids; Allergy to methotrexate; Current chronic lung disease, such as chronic obstructive pulmonary disease; Liver transaminases above the maximum reference value; Creatinine above the maximum reference value; Breastfeeding; Refusal to receive blood transfusion; Inability to continue the follow-up

Design outcomes

Primary

MeasureTime frame
It is expected to evaluate which of the minimally invasive methods is the most effective in preserving the patient's uterus after the treatment has been instituted, with success being considered if the patient progresses without the need for any additional intervention until ß-hCG levels are < 5mIU/ ml

Secondary

MeasureTime frame
Weekly evolution of b-hCG, expressed in mIU/mL, based on the 4th international standard of the World Health Organization.;Presence of uterine infections, defined by: vaginal bleeding that requires clinical intervention or the need for blood transfusions.;Surgical interventions according to notes in the patient's medical record, considering absent or present.;Side effects of methotrexate described by patients, such as mucositis, conjunctivitis, changes in the gastrointestinal tract, changes in the sensorium, such as peripheral neuropathy.;Time interval necessary for the regression of the GECC image on TVUS, also indicated in weeks, based on exams carried out in the Service itself.;Some demographic variables will be determined, with the aim of better characterizing the population included in the study: number of pregnancies; parities; number of cesarean deliveries and indication; previous uterine surgery; number of miscarriages, characterized as pregnancy loss before 20/22 weeks weighing less than 500 grams; maternal age; gestational age in weeks; position of the uterus (anteversoflexion or retroversoflexion).;Route of administration of methotrexate (local or chemoembolization).;Result of treatment with local Methotrexate e result of chemoembolization treatment.;Maternal morbidity and mortality.

Countries

Brazil

Contacts

Public ContactJulio Junior

Universidade Federal de São Paulo

elitojjr@hotmail.com+55(11)55764848

Outcome results

None listed

Source: REBEC (via WHO ICTRP)