Validating the Effect og Ondansetron and Mirtazapine in Treating Hyperemesis Gravidarum

Phase 2

Terminated

• Conditions: Hyperemesis Gravidarum; Vomiting of Pregnancy; Nausea Gravidarum
• Interventions: Drug: Placebo; Drug: Mirtazapine; Drug: Ondansetron

• Registration Number: NCT03785691
• Lead Sponsor: Nordsjaellands Hospital

Brief Summary

The aim is to investigate the efficacy of mirtazapine and ondansetron as treatment for hyperemesis gravidarum(HG).

The setup is a double-blind multicenter trial where patients suffering from HG will be randomized to treatment with either mirtazapine, ondansetron or placebo (1:1:1).

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2018-11-13
• Study First Submitted QC: 2018-12-20
• Study First Posted: 2018-12-24
• Study Start: 2019-03-01
• Primary Completion: 2022-07-31
• Study Completion: 2022-07-31
• Status Verified: 2023-01
• Last Update Submitted: 2023-01-26
• Last Update Posted: 2023-01-30

Recruitment & Eligibility

• Status: TERMINATED
• Sex: Female
• Target Recruitment: 58

Inclusion Criteria

• Written informed consent obtained before any trial related procedures are performed

• Female age >18 years

• Pregnant woman with gestational age between 5+0 and 19+6

• Nausea and vomiting without other obvious reason

• PUQE-24 score ≥13 OR PUQE-24 score ≥7 AND

  1. weight loss >5% of pre-pregnancy weight and/or
  2. hospitalisation due to nausea and vomiting of pregnancy

• Singleton pregnancy

• The subject must be willing and able to comply with trial protocol

Exclusion Criteria

• Mola pregnancy, multiple gestation or non-vital pregnancy
• Nausea and vomiting of other aetiology than NVP
• Allergic to selective 5-HT3-receptor antagonists
• Ongoing treatment with antidepressant medication
• Pre-existing diagnosis of chronic kidney disease, diabetes type 1 or 2, significant cardiac disease (incl. long QT syndrome), epilepsy, HIV. In case of other pre-existing conditions subjects might be excluded based on individual assessment by an MD
• Elevated liver enzymes (ALAT>150 U/l)
• Elevated creatinine (>100 µmol/l)
• ECG showing long QT-syndrome (QTc >460msek)
• Weekly alcohol intake >2 units of alcohol
• Not able to take medicine orally
• Not able to understand spoken and/or written Danish
• Participation in another investigational drug trial within current pregnancy

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Placebo	Placebo	Placebo oral tablet (empty gelatine capsule) will be administered twice daily (morning and bedtime) for 7 days. On Day 7 dosage increase is optional. If desired, placebo oral tablet (empty gelatine capsule) will be administered four times daily (morning, noon, late afternoon and bedtime) for 7 days. In case dosage increase is not desired, the subject will continue the initial treatment for an additional 7 days.
Mirtazapine	Mirtazapine	Mirtazapine 15 mg oral tablet (incapsulated in gelatine to provide blinding) will be administered once daily (bedtime) for 7 days. Placebo (empty gelatine capsule) will be administered once daily (morning). On Day 7 dosage increase is optional. If desired, mirtazapine 30 mg oral tablet (incapsulated in gelatine) will be administered once daily (bedtime) for 7 days. Placebo (empty gelatine capsule) will be administered three times daily (morning, noon and late afternoon). In case dosage increase is not desired, the subject will continue the initial treatment for an additional 7 days.
Ondansetron	Ondansetron	Ondansetron 8 mg oral tablet (incapsulated in gelatine) will be administered twice daily (morning and bedtime) for 7 days. On Day 7 dosage increase is optional. If desired, ondansetron 8 mg oral tablet (incapsulated in gelatine) will be administered four times daily (morning, noon, late afternoon and bedtime) for 7 days. In case dosage increase is not desired, the subject will continue the initial treatment for an additional 7 days.

Primary Outcome Measures

Name	Time	Method
Change in nausea and vomiting from baseline to Day 2 (short term) in the mirtazapine group versus the placebo group.	2 days	Change in Pregnancy Unique Quantification of Emesis 24 score (PUQE-24 score) (patient reported) from baseline to Day 2 (short term) in the mirtazapine group versus the placebo group. PUQE-24 score ranges 3-15 with 3 being better and 15 being worse.
Change in nausea and vomiting from baseline to Day 2 (short term) in the ondansetron group versus the placebo group.	2 days	Change in PUQE-24 score (patient reported) from baseline to Day 2 (short term) in the ondansetron group versus the placebo group.
Change in nausea and vomiting from baseline to Day 14(+/-1) (long term) in the mirtazapine group versus the placebo group.	14 days	Change in PUQE-24 score (patient reported) from baseline to Day 14(+/-) (long term) in the mirtazapine group versus the placebo group. Only tested if outcome 1 is significant.
Change in nausea and vomiting from baseline to Day 14(+/-1) (long term) in the ondansetron group versus the placebo group.	14 days	Change in PUQE-24 score (patient reported) from baseline to Day 14(+/-) (long term) in the ondansetron group versus the placebo group. Only tested if outcome 2 is significant.
Change in nausea and vomiting from baseline to Day 2 (short term) in the mirtazapine group versus the ondansetron group.	2 days	Change in PUQE-24 score (patient reported) from baseline to Day 2 (short term) in the mirtazapine group versus the ondansetron group. Only tested if outcome 1 is significant.

Secondary Outcome Measures

Name	Time	Method
Change in severity of hyperemesis gravidarum from baseline to Day 7(+/-1) and baseline to Day 14(+/-1) in the three different groups.	14 days	Change in HyperEmesis Level Prediction (HELP) score (patient reported) from baseline to Day 7(+/-1) and baseline to Day 14(+/-1) in the three different groups. HELP score ranges 0-50 with 0 being better and 50 being worse.
Change in sleep quality from baseline to Day 7(+/-1) and baseline to Day 14(+/-1) in the three different groups.	14 days	Change in modified Pittsburg Sleep Quality Index (PSQI) (patient reported) from baseline to Day 7(+/-1) and baseline to Day 14(+/-1) in the three different groups.Modified PSQI score ranges 0-12 with 0 being better and 12 being worse.
Change in nausea and vomiting from baseline to Day 14(+/-1) in the mirtazapine group versus the ondansetron group.	14 days	Change in PUQE-24 score (patient reported) from baseline to Day 14(+/-1) in the mirtazapine group versus the ondansetron group.
Change in vomiting during the intervention in the three different groups.	14 days	Change in number of daily vomiting episodes (patient reported) during the intervention in the three different groups.
Occurrence of side effects in the three different groups.	19 days	Occurrence of side effects (patient reported and registered by trial personnel) during and until 5 days after the intervention in the three different groups.
Change in health-related quality of life from baseline to Day 7(+/-1) and baseline to Day 14(+/-1) in the three different groups.	14 days	Change in health status (EQ-5D-5L) (patient reported) from baseline to Day 7(+/-1) and baseline to Day 14(+/-1) in the three different groups.
Request for dosage increase in the three different groups.	14 days	Frequency of request for dosage increase in the three different groups.
Request for continuation of trial medication after end of intervention in the three different groups.	14 days	Frequency of request for continuation of trial medication after end of intervention in the three different groups.
Use of rescue medication during the intervention in the three different groups.	14 days	Use of rescue medication during (patient reported) the intervention in the three different groups.
Number of days on sick leave during the intervention in the three different groups	14 days	Number of days on sick leave (patient reported) during the intervention in the three different groups
Overall nausea and vomiting during the intervention in the three different groups.	14 days	Area under the curve for PUQE-24 score (patient reported) during the intervention in the three different groups.
Change in well-being during the intervention in the three different groups.	14 days	Change in PUQE well-being score (patient reported) during the intervention in the three different groups.
Change in quality of life for nausea and vomiting during pregnancy from baseline to Day 7(+/-1) and baseline to Day 14(+/-1) in the three different groups.	14 days	Change in Health-Related Quality of Life for Nausea and Vomiting during Pregnancy (NVPQOL) score (patient reported) from baseline to Day 7(+/-1) and baseline to Day 14(+/-1) in the three different groups. NVPQOL score ranges 30-210 with 30 being better and 210 being worse.
Patient satisfaction with treatment Day 7(+/-1) and Day 14(+/-1) in the three different groups.	14 days	Patient satisfaction with treatment VAS (patient reported) on Day 7(+/-1) and Day 14(+/-1) in the three different groups. VAS score ranges 0-100 with 0 being better and 100 being worse. Numbers are not visible to subjects.
Change in patient consideration of termination of pregnancy from baseline to Day 7(+/-1) and baseline to Day 14(+/-1) in the three different groups.	14 days	Change in patient consideration of termination of pregnancy (patient reported) from baseline to Day 7(+/-1) and baseline to Day 14(+/-1) in the three different groups.
Change in nausea during the intervention in the three different groups.	14 days	Change in daily nausea visual analog scale (VAS) (patient reported) during the intervention in the three different groups. VAS score ranges 0-100 with 0 being better and 100 being worse. Numbers are not visible to subjects.
Necessity of i.v.-fluids during the intervention in the three different groups.	14 days	Amount of treatments with i.v.-fluids during the intervention in the three different groups.
Need of hospitalisation during the intervention in the three different groups.	14 days	Number of days of hospitalisations during the intervention in the three different groups.
Weight change from baseline to Day 7(+/-1) and baseline to Day 14(+/-1) in the three different groups.	14 days	Weight change in kg from baseline to Day 7(+/-1) and baseline to Day 14(+/-1) in the three different groups.
Pregnancy outcome: Live birth, loss or termination of pregnancy	8 months	Live birth, loss or termination of pregnancy.
Delivery outcome: Mode of delivery	8 months	Mode of delivery: Vaginal, cesarian, vacuum extraction.
Delivery outcome: Delivery complications	8 months	Eg. postpartum hemorrhage, shoulder dystocia, sphincter rupture
Live birth outcome: birth weight.	8 months	Birth weight in g.
Live birth outcome: gestational age at birth.	8 months	Gestational age at birth in weeks plus days.
Live birth outcome: APGAR score.	8 months	APGAR score at 1, 5 and 10 minutes after birth. APGAR score ranges 0-10 with 0 being worse and 10 being better.
Live birth outcome: umbilical cord pH.	8 months	Umbilical cord pH at birth.
Live birth outcome: placenta weight.	8 months	placenta weight in g.
Live birth outcome: sex.	8 months	offsprings sex.
Live birth outcome: congenital malformations (depending on gestational age also registered on early ended pregnancies).	8 months	Congenital malformations.
Live birth outcome: hospitalizations on neonatal ward during the first month post-partum.	9 months	Hospitalizations of the offspring in neonatal ward during the first month post-partum.
Occurrence of treatment failure in the three different groups.	14 days	Frequency of and time to treatment failure in the three different groups.

Trial Locations

Locations (7)

Department of Gynaecology and Obstetrics, Aarhus University Hospital; 🇩🇰 Aarhus, Denmark

Department of Gynaecology and Obstetrics, Rigshospitalet; 🇩🇰 Copenhagen, Denmark

Department of Gynaecology and Obstetrics, Herlev Hospital; 🇩🇰 Herlev, Denmark

Department of Gynaecology and Obstetrics, Hvidovre Hospital; 🇩🇰 Hvidovre, Denmark

Department of Gynaecology and Obstetrics, Nordsjællands Hospital; 🇩🇰 Hillerød, Denmark

Department of Gynaecology and Obstetrics, Kolding Sygehus; 🇩🇰 Kolding, Denmark

Department of Gynaecology and Obstetrics, Odense University Hospital; 🇩🇰 Odense, Denmark