E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Primary obstetrical antiphospholipid syndrome |
Syndrome des antiphospholipides (SAPL) obstétrical primaire |
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E.1.1.1 | Medical condition in easily understood language |
Primary Obstetric Antiphospholipid Syndrome |
Syndrome des antiphospholipides (SAPL) obstétrical primaire |
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E.1.1.2 | Therapeutic area | Diseases [C] - Immune System Diseases [C20] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10002817 |
E.1.2 | Term | Antiphospholipid syndrome |
E.1.2 | System Organ Class | 10005329 - Blood and lymphatic system disorders |
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E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To evaluate the benefit of adding or not adding hydroxychloroquine to the usual medical management in case of obstetrical SAPL in obtaining an uncomplicated pregnancy over time with a eutrophic child: (1) living child; (2) without maternal complication (pre-eclampsia, HELLP, thrombosis); (3) without fetal complications (IUGR); (4) without complications or neonatal morbidity on day 7 (hypotrophy, infectious, prematurity); (5) term> 37 WA. |
Evaluer le bénéfice de l’ajout ou non d‘hydroxychloroquine à la prise en charge médicale habituelle en cas de SAPL obstétrical dans l’obtention d’une grossesse non compliquée à terme avec un enfant eutrophe : (1) enfant vivant ; (2) sans complication maternelle (pré- éclampsie, HELLP, thrombose) ; (3) sans complication fœtale (RCIU) ; (4) sans complication ou morbidité néonatale à J7 (hypotrophie, infectieuses, prématurité) ; (5) terme > 37 SA. |
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E.2.2 | Secondary objectives of the trial |
- Evaluation of the efficacy of a hydroxychloroquine treatment during pregnancy on the percentage of maternal or fetal complications (prematurity, preeclampsia, IUGR, HELPP syndrome, retroplacental hematoma, thrombosis)
- Evaluation of the efficacy of hydroxychloroquine treatment on neonatal characteristics (weight and / or height and / or PC <5th and 10th percentile, APGAR 5 minutes ≤ 7)
- To study the influence of the blood concentration of hydroxychloroquine on the risk of maternal, fetal complications during pregnancy
- To study the influence of hydroxychloroquine treatment on the evolution of complement levels during pregnancy
- To study the tolerance of hydroxychloroquine treatment during pregnancy.
- To study the influence of a hydroxychloroquine treatment on the modification of the immune populations T, B, NK and cytokines.
- Study compliance with hydroxychloroquine treatment during pregnancy |
- Evaluation de l’efficacité d’un traitement par hydroxychloroquine pendant la grossesse sur le pourcentage de complications maternelles ou fœtales (prématurité, prééclampsie, RCIU, HELPP syndrome, hématome retroplacentaire, thromboses)
- Evaluation de l’efficacité d’un traitement par hydroxychloroquine sur les caractéristiques néonatales (poids et/ou taille et/ou PC <5e et 10e percentile, APGAR 5 minutes ≤ 7)
- Etudier l’influence de la concentration sanguine d’hydroxychloroquine sur le risque de complications maternelles, fœtales au cours de la grossesse
- Etudier l’influence d’un traitement par hydroxychloroquine sur l’évolution du taux du complément pendant la grossesse
- Etudier la tolérance d’un traitement par hydroxychloroquine pendant la grossesse
- Etudier l’influence d’un traitement par hydroxychloroquine sur la modification des populations immunitaires T, B, NK et des cytokines
- Etudier la compliance au traitement par hydroxychloroquine au cours de la grossesse |
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- Woman aged ≥ to 18 years
- Obstetric SAPL (modified Sapporo criteria = Sydney criteria) defined as fetal death ≥10 weeks of amenorrhea without further explanation; and / or preeclampsia (or HELLP syndrome) and / or prematurity <34SA related to placental insufficiency with or without thrombotic SAPL
- Spontaneous pregnancy in progress before 14 SA
- Ability to give informed, written, dated and signed consent prior to the commencement of any trial-related procedure and to comply with protocol recommendations
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- Femme d’âge ≥ à 18 ans
- SAPL obstétrical (critères de Sapporo modifiés = critères de Sydney) défini par une mort fœtale ≥10 semaines d’aménorrhée sans d’autres explications ; et/ou une prééclampsie (ou un HELLP syndrome) et/ou une prématurité <34SA en rapport avec une insuffisance placentaire avec ou sans SAPL thrombotique
- Grossesse spontanée en cours avant 14 SA
- Capacité à donner son consentement éclairé, écrit, daté et signé avant le début de toute procédure liée à l’essai et de se conformer aux recommandations du protocole |
|
E.4 | Principal exclusion criteria |
- Other SAPL subgroups: early isolated miscarriage <10 SA
- Minor patient
- Not affiliated to a social security scheme
- Contraindication to hydroxychloroquine
o retinopathies,
o hypersensitivity to chloroquine or hydroxychloroquine or to any of the other ingredients of this medication, including lactose
- Systemic systemic lupus, associated Sjogren syndrome
- Hydroxychloroquine treatment in progress
- Patient under guardianship or curatorship
- Patient deprived of liberty |
- Autres sous-groupes de SAPL : fausses couches isolées précoces <10 SA
- Patiente mineure
- Non affiliée à un régime de sécurité sociale
- Contre-indication à l’hydroxychloroquine
o rétinopathies,
o hypersensibilité à la chloroquine ou à l'hydroxychloroquine ou à l'un des autres constituants de ce médicament et notamment au lactose
- Lupus systémique associé, syndrome de Sjogren associés
- Traitement par hydroxychloroquine en cours
- Patiente sous tutelle ou curatelle
- Patiente privé de liberté |
|
E.5 End points |
E.5.1 | Primary end point(s) |
Percentage of uncomplicated term pregnancies with a eutrophic child (= a live birth with no maternal, fetal or neonatal complications) |
Pourcentage de grossesses à terme non compliquées avec un enfant eutrophe (=une naissance vivante à terme sans complications maternelles, foetales ou néonatales) |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
At delivery |
A l'accouchement |
|
E.5.2 | Secondary end point(s) |
- Percentage of complications (prematurity, preeclampsia, IUGR, HELPP syndrome, thrombosis, retroplacental hematoma) during pregnancy
- Neonatal characteristics (weight and / or height and / or PC <10percentile, APGAR 1/5 minutes <or equal 7)
- Percentage of SAPL complications according to the rate of hydroxychloroquine
- Evolution of the level of antiphospholipid antibodies
- Evolution of the complement level during pregnancy
- Percentage of maternal, fetal and neonatal side effects related to hydroxychloroquine
- Modification of the frequencies of the immune populations T, B, NK and cytokine levels under hydroxychloroquine (ancillary study)
- Number of hydroxychloroquine tablets taken (Patient Log) |
- Pourcentage de complications (prématurité, prééclampsie, RCIU, HELPP syndrome, thromboses, hématome retroplacentaire) au cours de la grossesse
- Caractéristiques néonatales (poids et/ou taille et/ou PC <10e percentile, APGAR 1/5 minutes < ou égal 7)
- Pourcentage de complications au cours de la grossesse selon le taux de l'hydroxychloroquine
- Evolution du taux des anticorps antiphospholipides
- Evolution du taux du complément pendant la grossesse
- Pourcentage d'effets secondaires maternels, foetaux et néonataux en rapport avec l'hydroxychloroquine
- Modification des fréquences des populations immunitaires T, B, NK et des taux de cytokines sous hydroxychloroquine (étude ancillaire)
- Nombre de comprimés de hydroxychloroquine pris (Carnet patient) |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
During pregnency and at delivery |
Pendant la grossesse et à l'accouchement |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | Yes |
E.6.3 | Therapy | No |
E.6.4 | Safety | No |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 34 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 4 |
E.8.9.1 | In the Member State concerned months | 10 |
E.8.9.1 | In the Member State concerned days | 0 |