2026-06-05
notable
Not Yet Recruiting→Recruiting Study Status, Sponsor/Collaborators, Study Description, Outcome Measures, Eligibility, Contacts/Locations v1
Trial statusNot Yet Recruiting→Recruiting
Primary completion date2025-02-28→2029-04-30
Completion date2025-02-28→2029-04-30
Start dateestimated 2023-04-01→confirmed 2026-04-30
Eligibility criteria-680 characters
Inclusion Criteriacriteria are:
1. age 20-40 years; old 2. metmeeting the conditionsindications offor assisted reproductive technology (ART) and underwent IVFundergoing fresh embryo transplantationtransfer 3.with Singletonin vitro fertilization (IVF); singleton pregnancy 4. Patients volunteered; and signedwillingness to participate and provide written informed consent prior to the trial.
Exclusion Criteriacriteria are:
1. age >40 years; old 2. Historyhistory of second-trimester miscarriage or cervical insufficiency in the second trimester 3. Abnormal; ovarian functiondysfunction or relevant su [...] [...]
Secondary endpoints+31 characters
live birth rate
cervical length
Study description+846 characters
ParticipantInclusion criteria were: age 20-40 years; old,indication IVFfor assisted reproductive technology (ART) with fresh embryo transplantation,transfer via in vitro fertilization (IVF); singleton pregnancy; and willingness to participate and provide written informed consent.
Exclusion criteria were: age >40 years; history of second-trimester miscarriage or cervical insufficiency; ovarian dysfunction or prior ovarian surgery; uterine malformation; conditions associated with abnormal uterine cavity mor [...] , blood/urineor HCGhistory (+)of cervical surgery; refractory vaginitis; multiple pregnanc [...] [...]