Endeavor to Stop Nausea/Vomiting Associated With Pregnancy (E-SNAP)

NCT ID: NCT05452174

Last Updated: 2024-12-11

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

WITHDRAWN

Clinical Phase

PHASE1/PHASE2

Study Classification

INTERVENTIONAL

Study Start Date

2022-06-13

Study Completion Date

2023-10-29

Brief Summary

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The primary objective of this proposal is to conduct an early Phase 2 clinical trial to determine the acceptability, dosing, tolerability and safety of mirtazapine for severe nausea and vomiting of pregnancy (sNVP) that is not adequately responsive to current standard treatments. This plan mirrors clinical practice since commonly prescribed antiemetic/ antinauseant drugs will be tested for efficacy before treating with mirtazapine.

Detailed Description

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Translational Research in Maternal and Pediatric Pharmacology and Therapeutics (PAR-20-299) supports research to "enhance the usage of existing drugs or drug repurposing for safer and more effective treatment for pregnant women" for "the early and conceptual stages of these projects. The primary objective of this proposal is to conduct an early Phase 2 clinical trial to determine the acceptability, dosing, tolerability and safety of mirtazapine for severe nausea and vomiting of pregnancy (sNVP) that is not adequately responsive to current standard treatments. This plan mirrors clinical practice since commonly prescribed antiemetic/ antinauseant drugs will be tested for efficacy before treating with mirtazapine.

Mirtazapine is a promising drug to repurpose for sNVP. It has potent anti-emetic properties and is available as an oral disintegrating formulation. It is used off-label to treat NV during cancer chemotherapy, prevent post-surgical nausea and vomiting and for gastroparesis. It is marketed as the serotonin-norepinephrine reuptake inhibitor antidepressant RemeronĀ®. Mirtazapine has multiple receptor effects beyond those involved in reducing depressive symptoms. In cancer and chemotherapy patients, it produces rapid resolution of nausea and vomiting by blocking physiologic inputs that coordinate emesis. It is hypothesized that repurposing mirtazapine for obstetric use overcomes the challenges of traditional pathways to develop new agents because its pharmacokinetics, safety and dosing have been established for general populations of patients and exposure data are available because it is prescribed to pregnant persons with depression.

Conditions

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Pregnancy Severe Nausea and Vomiting Hyperemesis Gravidarum

Keywords

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pregnancy severe nausea vomiting

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Mirtazapine Treatment Arm

Subjects will be administered the initial dose of mirtazapine, with dosage progressively increased over the course of the study. The initial dose of mirtazapine is 15 mg tablet, once per day. The dose will be increased weekly as tolerated up to 45 mg per day. The dose will be increased by 15 mg each week if the lower dose is tolerated without significant side effects. That is to say, the subject will take 15 mg/day every day for the first week, 30 mg/day every day for the second week, and 45 mg/day every day for the third week, with the option of the subject continuing the medication for the remainder of the pregnancy. If subjects choose to discontinue the mirtazapine, there will be a tapering regimen: if a patient is taking 45 mg at the end of week 3, they will begin a taper (by week) of 30 to 15 to 7.5 to 0 mg. If they relapse or has discontinuation symptoms, the previous effective dose will be given. They may attempt to taper again with the same approach.

Group Type EXPERIMENTAL

Mirtazapine

Intervention Type DRUG

Mirtazapine, sold under the brand name Remeron, is an atypical antidepressant, and as such is used primarily to treat depression.

Interventions

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Mirtazapine

Mirtazapine, sold under the brand name Remeron, is an atypical antidepressant, and as such is used primarily to treat depression.

Intervention Type DRUG

Other Intervention Names

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Remeron

Eligibility Criteria

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Inclusion Criteria

* singleton pregnancy
* inpatient or outpatient status
* English speaking
* obstetrician's evaluation and diagnosis of sNVP or HG
* tolerance of oral disintegrating tablet at bedtime
* PUQE score of 10-15; moderate/high or severe
* refractory sNVP
* blood pressure range 70-200 / 45-120
* normal ECG

Exclusion Criteria

* allergic or adverse reaction to mirtazapine
* patient has bipolar disorder
* subjects with active depression, or history of or current active suicidal ideation or attempt
* subjects with renal or hepatic impairment
* substance about in last 6 months
* use of medicinal or recreational cannabis-derived products in the last 6 months
* taking MAOIs, strong CYP3A inducers or inhibitors, and SSRIs
Minimum Eligible Age

18 Years

Maximum Eligible Age

49 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

NIH

Sponsor Role collaborator

Northwestern University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Katherine L Wisner, M.D., M.S.

Role: PRINCIPAL_INVESTIGATOR

Northwestern University (adjunct) now at Children's National Hospital

Locations

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Northwestern University Asher Center for the Study and Treatment of Depressive Disorders

Chicago, Illinois, United States

Site Status

Countries

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United States

References

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Abramowitz A, Miller ES, Wisner KL. Treatment options for hyperemesis gravidarum. Arch Womens Ment Health. 2017 Jun;20(3):363-372. doi: 10.1007/s00737-016-0707-4. Epub 2017 Jan 9.

Reference Type BACKGROUND
PMID: 28070660 (View on PubMed)

Fejzo MS, MacGibbon KW, Wisner KL. Pregnant, miserable, and starving in 21st century America. AJOG Glob Rep. 2022 Dec 5;3(1):100141. doi: 10.1016/j.xagr.2022.100141. eCollection 2023 Feb.

Reference Type BACKGROUND
PMID: 36536797 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Document Type: Informed Consent Form

View Document

Other Identifiers

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R21HD105101

Identifier Type: NIH

Identifier Source: secondary_id

View Link

STU00215676

Identifier Type: -

Identifier Source: org_study_id