TTP and aHUS in Complicated Pregnancies (NCT03605511) | Clinical Trial Compass
UnknownNot Applicable
TTP and aHUS in Complicated Pregnancies
United Kingdom150 participantsStarted 2018-09-21
Plain-language summary
A single site observational study aiming to:
(i) Identify cases of previously undiagnosed thrombotic thrombocytopenic purpura (TTP) and atypical haemolytic syndrome (aHUS) in a cohort of women with complicated pregnancies (ii) Characterise the clinical features of these cases and (ii) Identify clinical features or biomarkers which may help distinguish TTP/aHUS from other complications of pregnancy such as preeclampsia
Who can participate
Age range
16 Years
Sex
FEMALE
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
\- Women, either currently pregnant or recently postpartum, and affected by one or more of the following complications in the index pregnancy: (i) Preeclampsia with evidence of end organ damage (renal/ liver/ haematological/ neurological) or uteroplacental dysfunction (FGR/IUFD) (ii) HELLP syndrome (iii) Fetal growth restriction (FGR) (growth \<10th centile) that is unexplained (ie not due to infection, fetal structural anomaly, fetal chromosomal or pre-existing maternal medical problem) (iv) Intrauterine fetal demise (IUFD) after 20 weeks' gestation that is unexplained (v) Unexplained new onset renal impairment (defined by serum creatinine \>85umol/L 1st trimester, or \>80umol/L 2nd trimester, or \>90 umol/L 3rd trimester\[32\]; OR an increase in serum creatinine by (i) at least 1.5 times the baseline or (ii) of equal or greater than 26.5umol/L (as per KDIGO criteria) (vi) Unexplained new onset thrombocytopenia (platelets \<75x10\^9/L)
Exclusion Criteria:
* Previous diagnosis of TTP or aHUS
* Known disorder of complement dysregulation
* Patients not wishing to participate
* Patients aged less than 16
* Patients lacking capacity to provide informed consent
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Frequency of TTP and aHUS in the cohort
Timeframe: At study completion, approximately 18 months after recruitment of first patient