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Study of APD421 as PONV Treatment (no Prior Prophylaxis)

Phase 3
Completed
Conditions
Postoperative Nausea and Vomiting
Interventions
Drug: Placebo
Registration Number
NCT02449291
Lead Sponsor
Acacia Pharma Ltd
Brief Summary

Double-blind, randomised, parallel-group, placebo-controlled, adaptive, seamless, dose-selecting study to compare the efficacy of APD421 to placebo as treatment of established PONV, in patients who have not had prior PONV prophylaxis.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
568
Inclusion Criteria

Not provided

Exclusion Criteria
  • Patients scheduled to undergo transplant surgery or any surgery where post-operative emesis may pose a significant danger to the patient
  • Patients planned to receive only a local anaesthetic and/or regional neuraxial (intrathecal or epidural) block
  • Patients who have received APD421 active ingredient for any indication within the last 2 weeks
  • Patients who are allergic to APD421 active ingredient or any of the excipients of APD421
  • Patients with a significant, ongoing history of vestibular disease or dizziness
  • Patients being treated with regular anti-emetic therapy (dosed at least three times per week), which is still ongoing within one week prior to surgery
  • Patients with a known prolactin-dependent tumour (e.g. pituitary gland prolactinoma or breast cancer) or phaeochromocytoma
  • Patients being treated with levodopa
  • Patients who are pregnant or breast feeding
  • Patients with documented or suspected alcohol or substance abuse within the past 6 months
  • Patients with a documented, clinically significant cardiac arrhythmia
  • Patients diagnosed with Parkinson's disease
  • Patients who have received emetogenic anti-cancer chemotherapy in the previous 4 weeks
  • Patients with a history of epilepsy
  • Any other concurrent disease or illness that, in the opinion of the investigator makes the patient unsuitable for the study
  • Patients who have previously participated in this study or who have participated in another interventional clinical study involving pharmacological therapy within the previous 28 days (or longer exclusion period, if required by national or local regulations)
  • Where local laws/regulations require: patients under legal protection

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
APD421 standardAPD421Single (standard) dose IV APD421
APD421 highAPD421Single (high) dose IV APD421
PlaceboPlaceboSingle IV placebo
Primary Outcome Measures
NameTimeMethod
Complete Response (Success of Initial PONV Treatment)0-24 hours after treatment

The primary efficacy variable was the dichotomous variable: success or failure of initial PONV treatment, where success is defined as no emetic episodes (vomiting or retching) from 30 minutes\* to 24 hours after administration of study medication and no administration of anti-emetic rescue medication at any time in the 24-hour period after administration of study medication.

Secondary Outcome Measures
NameTimeMethod
Number of Participants With Complete Response 0-2 Hrs0-2 hours after administration of study medication

Success of initial PONV treatment, where success is defined as no emetic episodes (vomiting or retching) from 30 minutes to 2 hours after administration of study medication and no administration of anti-emetic rescue medication at any time in the 2-hour period after administration of study medication.

Number of Participants With Complete Response 2-24 Hrs2-24 hours after administration of study medication

Success of initial PONV treatment, where success is defined as no emetic episodes (vomiting or retching) and no administration of anti-emetic rescue medication from 2 to 24 hours after administration of study medication.

Number of Participants Using Rescue Medication0-24 hours after study drug administration

Proportion of patients receiving pre-specified anti-emetic rescue medication at any time in the 24 hours post-treatment period

Time to Treatment Failure0-24 hours after study drug administration

Time to first violation of the criteria for complete response

Incidence of Significant Nausea30 mins to 24 hours after study drug administration

Proportion of patients with nausea score ≥4 on an 11-point verbal rating scale (0=no nausea, 10=worst possible nausea, therefore higher value is worse outcome) during the time period from 30 minutes to 24 hours after administration of study medication.

Incidence of Nausea30 mins to 24 hours after study drug administration

Proportion of patients with nausea score ≥1 on an 11-point verbal rating scale (0=no nausea, 10=worst possible nausea, therefore higher value is worse outcome) during the time period from 30 minutes to 24 hours after administration of study medication.

Maximum Severity of Nausea30 mins to 24 hours after study drug administration

Highest recorded nausea score on an 11-point verbal rating scale (0=no nausea, 10=worst possible nausea, therefore higher value is worse outcome) during the time period from 30 minutes to 24 hours after administration of study medication.

Number of Patients Experiencing Incidence of Emesis30 mins to 24 hours after study drug administration

Number of patients experiencing vomiting or retching during the time period from 30 minutes to 24 hours after administration of study medication

Evolution Score of Nausea (0-30 Mins)0-30 minutes after study drug administration

The evolution score of nausea was calculated as the area under the curve (AUC) of the nausea scores on a scale 0-10 (where 0 is no nausea and 10 is the worst nausea imaginable) obtained at four pre-planned time points: pre-dose (0-min), and 5, 15 and 30 minutes after administration of study medication, as well as any spontaneously reported episodes of nausea during the time period, plotted against time. A higher score represents a worse outcome.

Trial Locations

Locations (4)

Ohio State University

🇺🇸

Columbus, Ohio, United States

Jackson Memorial Hospital

🇺🇸

Miami, Florida, United States

CHU de Hautepierre

🇫🇷

Strasbourg, France

Universität Heidelberg

🇩🇪

Heidelberg, Germany

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