- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT07557992
Reframing Endometrial Physiology by Advanced Integrated Research (REPAIR)
Studienübersicht
Status
Bedingungen
Detaillierte Beschreibung
Heavy menstrual bleeding (HMB) affects up to one-third of women of reproductive age, with a greater prevalence than asthma or diabetes, yet it remains under-recognised and undertreated. HMB is both a symptom and a potential signal of underlying reproductive or systemic dysfunction, including coagulopathies, vascular fragility, inflammation, and abnormal uterine contractility. Its impact is profound, physically, emotionally, and socioeconomically, but current diagnostic practice relies heavily on subjective reporting.
Objective assessment of blood loss is possible with the alkaline haematin test, the gold standard, but it is rarely used in clinical settings due to logistical barriers. This has led to misclassification in research and clinical care, limiting progress in understanding the mechanisms of HMB. Emerging evidence suggests that subtle abnormalities in uterine peristalsis, endometrial repair, and tissue composition may be detectable with advanced imaging and electrophysiology.
The REPAIR study addresses this by integrating anatomical (MRI), functional (wearable electrophysiology), and biological (biosample analysis) measures in women with and without objectively confirmed HMB. This approach aims to establish reproducible physiological signatures that could form the basis of scalable, non-invasive diagnostics.
Studientyp
Einschreibung (Geschätzt)
Kontakte und Standorte
Studienkontakt
- Name: Ying Cheong
- Telefonnummer: +44 7977011443
- E-Mail: y.cheong@soton.ac.uk
Studienorte
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Southampton, Vereinigtes Königreich, so16 6yd
- Rekrutierung
- University Hospital Southampton
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Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
Akzeptiert gesunde Freiwillige
Probenahmeverfahren
Studienpopulation
Beschreibung
Inclusion Criteria:
- 18-45
- Having Periods
Exclusion Criteria:
- Currently pregnant or breastfeeding.
- Known uterine malignancy, severe anaemia requiring urgent treatment, or other acute gynaecological emergencies.
- Inability to undergo MRI (e.g., pacemaker, severe claustrophobia).
- Inability to provide informed consent.
- Current use of hormonal treatment, or use in the last 2 months
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
Kohorten und Interventionen
Gruppe / Kohorte |
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Menorrhagia
diagnosed heavy periods with haematin test (>/80ml)
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Normal periods
not diagnosed as heavy with haematin test (<80ml)
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Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Frequency of uterine contractions (contractions per minute) measured using cine MRI (HASTE vs TRUFI sequences)
Zeitfenster: Cycle 1, Days 18-21 (luteal phase; each cycle is 28 days)
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Frequency of uterine contractions quantified from cine MRI sequences and compared between participants with heavy menstrual bleeding and controls.
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Cycle 1, Days 18-21 (luteal phase; each cycle is 28 days)
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Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Dominant frequency of uterine bioelectrical activity measured by wearable pelvic electrodes
Zeitfenster: Cycle 1, Days 18-21 (luteal phase) and Cycle 2 Days 1-5 (menstruation) (each cycle is 28 days)
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Dominant frequency (Hz) of uterine bioelectrical signals recorded using wearable pelvic surface electrodes and analysed using frequency-domain methods.
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Cycle 1, Days 18-21 (luteal phase) and Cycle 2 Days 1-5 (menstruation) (each cycle is 28 days)
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Acceptability of wearing device (usability score)
Zeitfenster: Cycle 2, Days 1-5 (menstruation; each cycle is 28 days)
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Participant-reported usability and acceptability assessed using a structured usability questionnaire developed for this study, comprising 9 items with ordinal response scales.
Responses will be assigned numerical values and summed to generate a composite usability score (range 9-36, with higher scores indicating greater acceptability).
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Cycle 2, Days 1-5 (menstruation; each cycle is 28 days)
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Molecular markers in endometrial biopsy sample
Zeitfenster: Cycle 1 (each cycle is 28 days), assessed at Days 1-5 (menstruation) and Days 18-21 (luteal phase)
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Quantification of molecular biomarkers in endometrial biopsy tissue using histological and molecular analysis techniques (units dependent on biomarker, e.g., pg/mg tissue).
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Cycle 1 (each cycle is 28 days), assessed at Days 1-5 (menstruation) and Days 18-21 (luteal phase)
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Molecular markers in vaginal swab samples
Zeitfenster: Cycle 1, Days 1-5 (menstruation); Days 6-10 (post-menstruation); and Days 18-21 (luteal phase) (each cycle is 28 days)
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Measurement of molecular markers from vaginal swabs using laboratory-based assays.
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Cycle 1, Days 1-5 (menstruation); Days 6-10 (post-menstruation); and Days 18-21 (luteal phase) (each cycle is 28 days)
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Molecular markers in menstrual effluent
Zeitfenster: Cycle 1 (each cycle is 28 days), assessed at Days 1-3 (menstruation)
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Analysis of biomarkers in menstrual effluent collected during menstruation.
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Cycle 1 (each cycle is 28 days), assessed at Days 1-3 (menstruation)
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Concentration of molecular biomarkers in blood samples
Zeitfenster: Baseline
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Measurement of circulating biomarkers in peripheral blood samples using laboratory assays (units dependent on biomarker, e.g., pg/mL).
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Baseline
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Mitarbeiter und Ermittler
Mitarbeiter
Ermittler
- Hauptermittler: Ying Cheong, University Hospital Southampton NHS Foundation Trust
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Primärer Abschluss (Geschätzt)
Studienabschluss (Geschätzt)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Zusätzliche relevante MeSH-Bedingungen
- Urogenitale Erkrankungen
- Genitalerkrankungen
- Pathologische Prozesse
- Weibliche Urogenitalerkrankungen
- Weibliche Urogenitalerkrankungen und Schwangerschaftskomplikationen
- Uteruserkrankungen
- Genitalerkrankungen, weiblich
- Blutung
- Gebärmutterblutung
- Menstruationsstörungen
- Pathologische Zustände, Anzeichen und Symptome
- Menorrhagie
Andere Studien-ID-Nummern
- O&G0334
- 362221 (Andere Kennung: IRAS)
Plan für individuelle Teilnehmerdaten (IPD)
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Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
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