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Status unknownNCT03220750UNIHOPEUpdated Jul 18, 2017

University Hospital Advanced Age Pregnant Cohort

An observational study in Advanced Maternal Age Pregnancy, High Risk Pregnancy and Perinatal Death, sponsored by Peking University. Status unknown at 9 sites in China. Open to female participants aged 35 Years to 60 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-07-18.

Sponsored by Peking University · Observational

The sponsor has not verified this record recently (last verified Jul 2017), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
22,000
Ages
35 Years to 60 Years
Sex
Female
01

Study summary

The University Hospital Advanced Age Pregnant (UNIHOPE) Cohort is the major part of the National Key Research and Development Program on Reproductive Health \& Major Birth Defects Control and Prevention Project, which is funded by the Ministry of Science and Technology of China. The Project is led by Prof. Zhao Yangyu, from the Department of Gynecology \& Obstetrics, Peking University Third Hospital, and the UNIHOPE cohort is led by Prof. Jian-meng Liu, the Co-PI of the Project.

Read the detailed description

The UNIHOPE Cohort is set up to provide comprehensive evidence for the prevention and treatment of gestational complications in pregnant women with advanced maternal age, and therefore, to meet the growing clinical challenges of increasing pregnant women with advanced age in the two-child era. The UNIHOPE Cohort is planning to recruit 22,000 pregnant women aged ≥35 years from 9 large obstetrical center of major University-affiliated Hospitals across China, between July 2016 and December 2020. All women will be enrolled prior to 14 wks of gestation, followed up at 24-28 wks, 32-34 wks of gestation, delivery, and 42 days postpartum. Data including demographics, medical history, reproductive history, prenatal health care, gestational complications, and pregnancy and birth outcomes will be collected via electronic data capture system. Venous blood of the pregnant women will be collected at enrollment and each follow-up visit during pregnancy, and placental tissue, cord blood and hair of the newborn will also be collected.

02

Conditions studied

  • Advanced Maternal Age Pregnancy
  • High Risk Pregnancy
  • Perinatal Death
  • Maternal Death
  • Various Pregnancy Complications
  • Stillbirth and Fetal Death
  • Abortion, Spontaneous
03

In context

Perinatal Death

120 studies on the registry are indexed under Perinatal Death; 25 are open to participants now.

This study's planned enrollment of 22,000 is above the median of 525 across 33 observational studies indexed under Perinatal Death.

Browse Perinatal Death studies →

Lead sponsor

Peking University is the lead sponsor of 419 studies on the registry; 123 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
35 Years to 60 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

The UNIHOPE Cohort is a prospective cohort study that will enroll \~22000 pregnant women aged 35 years and over from 9 large obstetrical center of University-Affiliated Hospitals. These hospitals locate at 7 supercities (Beijing, Shanghai, Guangdong, Shenyang, Wuhan, Chongqing and Chengdu) of China. Pregnant women who are planning to recieve prenatal healthcare and delivery in those hospitals are potential candidates for the study.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Female aged ≥ 35 years
  • Less than 14 gestational weeks
  • Planning to receive prenatal healthcare and delivery service at the study hospital

Exclusion criteria

Exclusion Criteria:

  • Inability to provide
  • Women with mental disorders
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
22,000 participants (estimated)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. Incidence of major gestational complications and adverse pregnancy outcomes in pregnant women with the advanced age, for a singleton or twin and higher order multiple gestation

    Gestational diabetes mellitus, hypertensive disease of pregnancy, uterine scar pregnancy, placenta previa, preterm delivery, postpartum hemorrhage, low birth weight, spontaneous abortion, stillbirth, perinatal death

    Time frame: At enrollment, 24-28 weeks, 32-34 weeks of gestation, delivery, and 42 days postpartum

Secondary outcomes

  1. Maternal death

    Deaths during pregnancy or less than 42 days after termination of pregnancy.

    Time frame: At 24-28 weeks, 32-34 weeks of gestation, delivery, and 42 days postpartum

  2. The rate of cesarean delivery

    Cesarean rate is defined as the number of cesarean delivery divided by the number of live births.

    Time frame: At delivery

  3. Gestational duration

    The number of weeks from the first day of the woman's last recorded menstrual period to the day of delivery deaths occurring within 28 days.

    Time frame: At enrollment, delivery

  4. Birth weight

    Every newborn's weight will be measured twice, but if the difference between the two measurement results is more than 0.1 kg, it will be measured for the third time, Low birth weight was defined as birth weight \<2500 g.

    Time frame: At delivery

  5. Birth length

    Every newborn's length will be measured twice, but if the difference between the two measurement results is more than 0.1 kg, it will be measured for the third time.

    Time frame: At delivery

07

Study locations

2 of 9 sites recruiting
  • Peking University First Hospital
    Beijing, 100034, China
    Active, not recruiting
  • Beijing Obstetrics and Gynecology Hospital, Capital Medical University
    Beijing, 100069, China
    Active, not recruiting
  • Peking University Third Hospital
    Beijing, 100191, China
    Recruiting
  • West China Second University Hospital
    Chengdu, 610000, China
    Active, not recruiting
  • The First Affiliated Hospital of Chongqing Medical University
    Chongqing, 400010, China
    Recruiting
  • The Third Affiliated Hospital of Guangzhou Medical University
    Guangzhou, 510000, China
    Active, not recruiting
  • Obstetrics and Gynecology Hospital of Fudan University
    Shanghai, 200000, China
    Active, not recruiting
  • Shengjing Hospital of China Medical University
    Shenyang, 110000, China
    Active, not recruiting
  • Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology
    Wuhan, 430000, China
    Active, not recruiting
08

References and documents

Publications

  • Laopaiboon M, Lumbiganon P, Intarut N, Mori R, Ganchimeg T, Vogel JP, Souza JP, Gulmezoglu AM; WHO Multicountry Survey on Maternal Newborn Health Research Network. Advanced maternal age and pregnancy outcomes: a multicountry assessment. BJOG. 2014 Mar;121 Suppl 1:49-56. doi: 10.1111/1471-0528.12659. PubMed 24641535 ↗
  • Ngowa JD, Ngassam AN, Dohbit JS, Nzedjom C, Kasia JM. Pregnancy outcome at advanced maternal age in a group of African women in two teaching Hospitals in Yaounde, Cameroon. Pan Afr Med J. 2013 Apr 7;14:134. doi: 10.11604/pamj.2013.14.134.2315. Print 2013. PubMed 23734279 ↗
  • Carolan M. Maternal age >/=45 years and maternal and perinatal outcomes: a review of the evidence. Midwifery. 2013 May;29(5):479-89. doi: 10.1016/j.midw.2012.04.001. Epub 2012 Nov 16. PubMed 23159159 ↗
  • Khalil A, Syngelaki A, Maiz N, Zinevich Y, Nicolaides KH. Maternal age and adverse pregnancy outcome: a cohort study. Ultrasound Obstet Gynecol. 2013 Dec;42(6):634-43. doi: 10.1002/uog.12494. PubMed 23630102 ↗
  • Lisonkova S, Potts J, Muraca GM, Razaz N, Sabr Y, Chan WS, Kramer MS. Maternal age and severe maternal morbidity: A population-based retrospective cohort study. PLoS Med. 2017 May 30;14(5):e1002307. doi: 10.1371/journal.pmed.1002307. eCollection 2017 May. PubMed 28558024 ↗
  • Cleary-Goldman J, Malone FD, Vidaver J, Ball RH, Nyberg DA, Comstock CH, Saade GR, Eddleman KA, Klugman S, Dugoff L, Timor-Tritsch IE, Craigo SD, Carr SR, Wolfe HM, Bianchi DW, D'Alton M; FASTER Consortium. Impact of maternal age on obstetric outcome. Obstet Gynecol. 2005 May;105(5 Pt 1):983-90. doi: 10.1097/01.AOG.0000158118.75532.51. PubMed 15863534 ↗
  • Lisonkova S, Janssen PA, Sheps SB, Lee SK, Dahlgren L. The effect of maternal age on adverse birth outcomes: does parity matter? J Obstet Gynaecol Can. 2010 Jun;32(6):541-548. doi: 10.1016/S1701-2163(16)34522-4. PubMed 20569534 ↗
  • Niessen K, Werner-Bierwisch T, Metzing S, Sayn-Wittgenstein FZ. [Motherhood at the Age of 35 and Over: The Risk of Advanced Maternal Age as Perceived by Women - a Literature Study]. Z Geburtshilfe Neonatol. 2017 Jun;221(3):111-121. doi: 10.1055/s-0043-104864. Epub 2017 Jun 30. German. PubMed 28666302 ↗
  • Taghizadeh Z, Cheraghi MA, Kazemnejad A, Pooralajal J, Aghababaei S. Difference in Perception of Pregnancy Risk in Two Maternal Age Groups. J Clin Diagn Res. 2017 May;11(5):QC09-QC12. doi: 10.7860/JCDR/2017/23661.9915. Epub 2017 May 1. PubMed 28658853 ↗
  • Jolly M, Sebire N, Harris J, Robinson S, Regan L. The risks associated with pregnancy in women aged 35 years or older. Hum Reprod. 2000 Nov;15(11):2433-7. doi: 10.1093/humrep/15.11.2433. PubMed 11056148 ↗

Individual participant data

Plan to share: Undecided

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 18, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03220750
Lead sponsor
Peking University
Collaborators
Peking University Third Hospital, Peking University First Hospital, Obstetrics & Gynecology Hospital of Fudan University, Shengjing Hospital, The Third Affiliated Hospital of Guangzhou Medical University, West China Second University Hospital, First Affiliated Hospital of Chongqing Medical University, Beijing Obstetrics and Gynecology Hospital, Tongji Hospital, Shenzhen Institutes of Advanced Technology ,Chinese Academy of Sciences
Responsible party
Jianmeng Liu (Prof., Peking University) — Principal investigator
First posted
Jul 18, 2017
Start date
Mar 28, 2017
Primary completion
Dec 31, 2020 (estimated)
Completion
Dec 31, 2020 (estimated)
Last update
Jul 18, 2017

Study contacts

Jian-meng Liu, PhD
Contact
liujm@pku.edu.cn
86-10-82801136
Hong-tian Li, PhD
Contact
liht@bjmu.edu.cn
86-10-82801141
Yangyu Zhao, PhD
study chair · Peking University Third Hospital
Jian-meng Liu, PhD
principal investigator · Peking University

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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