E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Fetal distress during the second stage of labor. |
|
E.1.1.1 | Medical condition in easily understood language |
Fetal distress during the final stage of labor (when the woman is bearing down). |
|
E.1.1.2 | Therapeutic area | Body processes [G] - Circulatory and Respiratory Physiological Phenomena [G09] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
Primary Objective: the primary objective is to investigate the effect of maternal hyperoxygenation with 100% oxygen on fetal heart rate pattern. We will describe the difference in FHR deceleration depth, duration and frequency, baseline and variability 10 minutes before and after maternal oxygen administration. |
|
E.2.2 | Secondary objectives of the trial |
Secondary Objectives: venous and arterial umbilical cord blood gas analysis (pH, lactate, base excess, pO2 and pCO2), Apgar-score, fECG, mode of delivery, NICU-admissions and markers for free oxygen radical production (8-isoprostane, hypoxanthine and malondialdehyde) and catecholamines in venous and arterial umbilical cord blood, and maternal complaints. |
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Maternal factors: - Age > 18 years - In term labor (gestational age 37+0 - 41+6 weeks) - Intention for vaginal delivery - Ability to understand the Dutch language - Informed consent obtained
Fetal factors: - Singleton fetus - Fetus in head position - Suspected fetal distress (Suboptimal or Abnormal CTG according to the FIGO guideline) |
|
E.4 | Principal exclusion criteria |
Maternal factors: - Age < 18 years - Use of any of the following medication: corticosteroids, antihypertensives, magnesiumsulphate, amiodaron, opioids, amiodaron, adriamycine, bleomycine, actinomycine, menadion, (chloor-) promazine, thiordiazine, chloroquine - Pre-existing cardiac disease - Pulmonary disease needing the use of medication - Diabetes - Hyperthyroidism - Anemia (Hb < 6.5 mmol/l) - Smoking, using alcohol or recreational drugs during pregnancy - Pre- or postterm labor (< 37+0 or > 41+6 weeks) - Planned caesarean section
Fetal factors: - Multiple fetuses - Suspected growth restriction (<p10) - Suspected infection - Congenital malformations - Breech position
|
|
E.5 End points |
E.5.1 | Primary end point(s) |
Fetal heart rate pattern: frequency, depth and duration of decelerations, variability and baseline will be determined before and after oxygen administration. The frequency of decelerations and FHR baseline will be determined manually. Variability and deceleration depth and duration will be determined by a computer program (MatLab). The outcome for deceleration depth and duration will be determined by calculation the area under the curve of each deceleration. |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
For study purposes, the cardiotocogram (including fetal heart rate tracing) will be stored in a computer and analysed when all subjects are included in the study. |
|
E.5.2 | Secondary end point(s) |
- Umbilical cord pH (arterial and venous), base excess, lactate, pO2 and pCO2 - Apgar score - Mode of delivery - fECG - NICU admission - Markers for free oxygen radicals in arterial and venous umbilical cord blood - Catecholamines in arterial and venous umbilical cord blood - Maternal complaints
|
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
Umbilical cord blood is taken immediately after birth. Blood gas analyses is performed immediately after birth (commom practice), while markers for free oxygen radical activity and cathecholamines are examined when samples from all patients are taken (these samples will be stored in the meantime). Apgar score is given within 10 minutes after birth. Mode of delivery, NICU admission, maternal complaints and baseline characteristics (for example fetal weight and sex) are noted directly after the delivery. f ECG analyses is perfomed when all patients are included in the study (analysis is perfomed on stored FHR tracings). |
|
E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
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) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
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 | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | Yes |
E.8.1.7.1 | Other trial design description |
Depending on the outcome parameter the design is open, or the investigator is blinded. |
|
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | Yes |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | Yes |
E.8.2.3.1 | Comparator description |
Conventional care, such as tocolysis, stop oxytocin infusion or maternal repositioning. |
|
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
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
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 | No |
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
|
When the fetus is born and the blood withdrawn from the umbilical cord the study has finished for this specific participant. The other outcome parameters to be determined afterwards are conventional care. The subject does not have to come back for check ups afterwards. |
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | 0 |