Status:

COMPLETED

Black Widow Spider Antivenin for Patients With Systemic Latrodectism

Lead Sponsor:

Instituto Bioclon S.A. de C.V.

Collaborating Sponsors:

Rare Disease Therapeutics Inc.

Conditions:

Latrodectism

Eligibility:

All Genders

10+ years

Phase:

PHASE3

Brief Summary

The purpose of this study is to test the efficacy and safety of a new antivenom called Analatro® for treating black widow spider bites in patients who present to a hospital emergency room within 24 ho...

Detailed Description

Instituto Bioclon S.A. de C.V. has developed Analatro®, an antibody fragment (Fab2) containing widow spider (Latrodectus) antivenom, and proposes to conduct a clinical trial in hospital emergency depa...

Eligibility Criteria

Inclusion

  • Moderate to severe pain intensity measured using the visual analog scale (VAS score ≥ 40mm) at the start of screening phase (VAS 0)
  • Diagnosis of latrodectism by the Investigator, with concurrence of diagnosis by a physician not directly involved with the study
  • Moderate to severe pain intensity measured using the visual analog scale (VAS score ≥ 40mm) at Baseline (VAS 1)

Exclusion

  • Less than 10 years of age
  • Presents to the emergency department of any healthcare facility greater than 24 hours after onset of symptoms
  • Has a known (self-reported) hypersensitivity to fentanyl, morphine, diazepam, or equine serum
  • History of significant cardiac, respiratory, hepatic or renal disease, psychiatric disorder or chronic pain syndrome that in the investigator's assessment would confound efficacy or safety endpoint assessment (e.g., a bite to the leg of a patient with reflex sympathetic dystrophy)
  • History or suspected history or substance abuse
  • Pregnant or breast-feeding
  • Has a distracting injury with acute pain, or is unable to make a reliable self-report of pain intensity to pain relief based solely on the condition of interest
  • Was already treated with Merck Antivenin Latrodectus Mactans for signs/symptoms related to the current widow spider bite
  • Unable to provide a telephone number to be contacted for follow-up interviews on Days 2, 10, and 17 after discharge from the emergency department

Key Trial Info

Start Date :

October 1 2009

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

October 1 2014

Estimated Enrollment :

60 Patients enrolled

Trial Details

Trial ID

NCT00657540

Start Date

October 1 2009

End Date

October 1 2014

Last Update

April 3 2018

Active Locations (16)

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Page 1 of 4 (16 locations)

1

Banner Good Samaritan Medical Center

Phoenix, Arizona, United States, 85006

2

Maricopa Medical Center

Phoenix, Arizona, United States, 85008

3

University of California Davis

Davis, California, United States, 95616

4

University California San Francisco - Fresno

Fresno, California, United States, 93701