Capsaicin Cream as an Adjunctive Therapy for Nausea and Vomiting of Pregnancy

Phase 2

Completed

Conditions: Nausea Gravidarum
Hyperemesis Gravidarum
Vomiting of Pregnancy

Interventions: Drug: Capsaicin Topical Cream
Drug: Metoclopramide
Drug: Ondansetron
Drug: Lactated Ringers, Intravenous

Registration Number: NCT05098067

Lead Sponsor: Women and Infants Hospital of Rhode Island

Brief Summary: Between fifty and eighty percent of pregnant women experience nausea and vomiting in pregnancy making it one of the most common medical complications of pregnancy. Hyperemesis gravidarum is an extreme form of nausea and vomiting of pregnancy and results in evidence of acute starvation (i.e. large ketonuria), and weight loss (\>5% of a woman's pre-pregnancy weight). Hyperemesis gravidarum is also surprisingly common. In fact, it is the second leading cause of preterm hospitalization during pregnancy, second only preterm labor. Hospitalization is often required because hyperemesis is frequently refractory to common anti-nausea medications. However, capsaicin cream, a potent TRPV1 agonist, commonly used to relieve muscular and neuropathic pain, may be able to reduce the symptoms of nausea and emesis in patients with nausea and vomiting of pregnancy. Smaller studies have demonstrated capsaicin to be both safe and effective when used to treat intraoperative nausea during cesarean delivery. To begin to address whether capsaicin cream could be used to reduce preterm admissions and shorten emergency room visits for hyperemesis, this study will randomize women presenting to the emergency room for nausea and vomiting to treatment with capsaicin cream as an adjunctive medication or routine care. The project will investigate the impact of capsaicin cream on hospital length of stay as well as representation for additional treatment. If effective, capsaicin cream has the potential not only to reduce emergency room visits, hospital admissions and overall health care costs, but also to drastically improve patient quality of life.

Detailed Description: Not available

Recruitment & Eligibility

Status: COMPLETED

Sex: Female

Target Recruitment: 30

Inclusion Criteria

Pregnant women in the first trimester (0-14 weeks gestation)
Presenting to the emergency room at Women & Infants Hospital in Rhode Island with a chief complaint of nausea and vomiting
English or Spanish speaking
Have not taken an anti-emetic such as Reglan or Zofran within the 6 hours prior to presentation

Exclusion Criteria

Allergy to Reglan, capsaicin or Zofran
Another identifiable source for nausea and vomiting (i.e. gastritis, COVID, diabetic ketoacidosis)
Molar pregnancies,
Patients with a history of gastroparesis
Patients with a history of preexisting diabetes mellitus

Study & Design

Study Type: INTERVENTIONAL

Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Intervention group	Capsaicin Topical Cream	Participants will receive IV fluid bolus of 1000cc of lactated ringers, metoclopromide 10mg IV and will have 5g of 0.075% capsaicin cream applied to their abdomen. Participants will indicate the severity of their symptoms immediately prior to administration of metoclopromide, at time 0 and every 30 minutes for a total of 120 minutes after administration of the first medications (or discharge) using a 10 cm visual analogue scale (VAS)11,12. The scale will be provided in English or Spanish as appropriate. If at the 90-minute time mark the patient does not report improvement of their symptoms, odansetron 8mg IV will be administered.
Intervention group	Lactated Ringers, Intravenous	Participants will receive IV fluid bolus of 1000cc of lactated ringers, metoclopromide 10mg IV and will have 5g of 0.075% capsaicin cream applied to their abdomen. Participants will indicate the severity of their symptoms immediately prior to administration of metoclopromide, at time 0 and every 30 minutes for a total of 120 minutes after administration of the first medications (or discharge) using a 10 cm visual analogue scale (VAS)11,12. The scale will be provided in English or Spanish as appropriate. If at the 90-minute time mark the patient does not report improvement of their symptoms, odansetron 8mg IV will be administered.
Placebo group	Lactated Ringers, Intravenous	Participants will receive IV fluid bolus of 1000cc of lactated ringers, metoclopromide 10mg IV and will have 5g of placebo cream applied to their abdomen. Participants will indicate the severity of their symptoms immediately prior to administration of metoclopromide, at time 0 and every 30 minutes for a total of 120 minutes after administration of the first medications (or discharge) using a 10 cm visual analogue scale (VAS). The scale will be provided in English or Spanish as appropriate. If at the 90-minute time mark the patient does not report improvement of their symptoms, odansetron 8mg IV will be administered.
Intervention group	Metoclopramide	Participants will receive IV fluid bolus of 1000cc of lactated ringers, metoclopromide 10mg IV and will have 5g of 0.075% capsaicin cream applied to their abdomen. Participants will indicate the severity of their symptoms immediately prior to administration of metoclopromide, at time 0 and every 30 minutes for a total of 120 minutes after administration of the first medications (or discharge) using a 10 cm visual analogue scale (VAS)11,12. The scale will be provided in English or Spanish as appropriate. If at the 90-minute time mark the patient does not report improvement of their symptoms, odansetron 8mg IV will be administered.
Intervention group	Ondansetron	Participants will receive IV fluid bolus of 1000cc of lactated ringers, metoclopromide 10mg IV and will have 5g of 0.075% capsaicin cream applied to their abdomen. Participants will indicate the severity of their symptoms immediately prior to administration of metoclopromide, at time 0 and every 30 minutes for a total of 120 minutes after administration of the first medications (or discharge) using a 10 cm visual analogue scale (VAS)11,12. The scale will be provided in English or Spanish as appropriate. If at the 90-minute time mark the patient does not report improvement of their symptoms, odansetron 8mg IV will be administered.
Placebo group	Metoclopramide	Participants will receive IV fluid bolus of 1000cc of lactated ringers, metoclopromide 10mg IV and will have 5g of placebo cream applied to their abdomen. Participants will indicate the severity of their symptoms immediately prior to administration of metoclopromide, at time 0 and every 30 minutes for a total of 120 minutes after administration of the first medications (or discharge) using a 10 cm visual analogue scale (VAS). The scale will be provided in English or Spanish as appropriate. If at the 90-minute time mark the patient does not report improvement of their symptoms, odansetron 8mg IV will be administered.
Placebo group	Ondansetron	Participants will receive IV fluid bolus of 1000cc of lactated ringers, metoclopromide 10mg IV and will have 5g of placebo cream applied to their abdomen. Participants will indicate the severity of their symptoms immediately prior to administration of metoclopromide, at time 0 and every 30 minutes for a total of 120 minutes after administration of the first medications (or discharge) using a 10 cm visual analogue scale (VAS). The scale will be provided in English or Spanish as appropriate. If at the 90-minute time mark the patient does not report improvement of their symptoms, odansetron 8mg IV will be administered.

Primary Outcome Measures

Name	Time	Method
Time to Symptom Control	180 minutes	Time to perceived symptom control as measured by time elapsed between metoclopramide administration and patient request for discharge.

Secondary Outcome Measures