Outcomes in Twin Pregnancies: Comparing Natural Conception and ART

A Combined Retrospective-Prospective Cohort Study on Maternal and Neonatal Outcomes in Twin Pregnancies between Natural and Assisted Conception

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20250714005

Enrollment

547

Registered

2025-07-14

Start date

2025-07-01

Completion date

Unknown

Last updated

2026-08-03

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

Conditions

Maternal and Neonatal Outcomes in Twin Pregnancies twin pregnancy

Interventions

naturally conceived twin pregnancies,twin pregnancies resulting from assisted reproductive technologies

Screening,Screening

natural group,ART group

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: 1. Mothers with a history of either naturally conceived twin pregnancies or twin pregnancies resulting from assisted reproductive technologies 2. previously received antenatal care at Siriraj Hospital 3. history can be obtained through: - Medical records - Telephone interviews with the patient

Exclusion criteria

Exclusion criteria: 1. no history of antenatal care at Siriraj hospital 2. important outcomes cannot be obtained completely 3. twin pregnancy with more than 2 fetuses

Design outcomes

Primary

Measure	Time frame
Maternal and Neonatal Outcomes in Twin Pregnancies end of the pregnancy review the medical records	—

Secondary

Measure	Time frame
the pregnancy outcomes of naturally conceived twin pregnancies and those resulting from assisted reproductive technologies end of the pregnancy review the medical records	—

Countries

Thailand

Contacts

Public ContactPiramon Chawanpaiboon

Faculty of Medicine Siriraj Hospital, Mahidol University

beehula@gmail.com024194636

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026