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TerminatedNCT00387738Updated Apr 16, 2019

Efficacy and Safety Study of TOLAMBA™ in Ragweed-Allergic Adults

A Phase 2 interventional study of Amb a 1 immunostimulatory oligodeoxyribonucleotide conjugate and Histamine base in Rhinitis, Allergic, Seasonal, sponsored by Dynavax Technologies Corporation. Terminated at 28 sites in United States. Open to participants aged 18 Years to 55 Years. Per ClinicalTrials.gov, last updated 2019-04-16.

Sponsored by Dynavax Technologies Corporation · Phase 2, Interventional, and Prevention

Why this study was terminated
Interim data indicated that subjects exhibited no meaningful allergic disease during the first ragweed season, making it impossible to measure treatment effect.
Phase
Phase 2
Study type
Interventional
Enrollment
738
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
All
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Study summary

The purpose of this study is to find out if a new investigational vaccine, TOLAMBA™, is safe and effective in reducing the symptoms of ragweed allergy.

Read the detailed description

Ragweed allergy is the most common seasonal allergy in North America. Allergen immunotherapy is a therapeutic option for patients who have allergy symptoms that cannot be adequately controlled by avoidance of the allergen or medication. It may also be appropriate for those who cannot tolerate their medications due to side effects or have difficulties with medication compliance. This study compares the safety and efficacy of two different dosing regimens of TOLAMBA™ with placebo in reducing the symptoms of ragweed-allergic adults over two consecutive ragweed pollen seasons.

Comparison(s): Subject-rated allergy symptoms of subjects treated with TOLAMBA™ dose-intense regimen or TOLAMBA™ lower-dose regimen, compared with subjects treated with placebo.

02

Conditions studied

  • Rhinitis, Allergic, Seasonal

Keywords

  • Ragweed
  • Allergy
  • Allergic
  • Rhinitis
  • Hay Fever
  • Seasonal
  • Treatment
  • Immunotherapy
  • Vaccine
03

In context

Rhinitis

1,105 studies on the registry are indexed under Rhinitis; 65 are open to participants now.

This study's enrollment of 738 is above the median of 89 across 906 interventional studies indexed under Rhinitis.

Browse Rhinitis studies →

Lead sponsor

Dynavax Technologies Corporation is the lead sponsor of 25 studies on the registry; none are open to participants now.

Of its 7 completed or terminated interventional studies of FDA-regulated products, 6 (86%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Has a history of ragweed allergic rhinitis (hayfever) during at least the last 2 consecutive seasons that has required treatment with antihistamines, decongestants and/or nasal steroids, but where symptom relief has been incomplete
  • Is willing to stay in their ragweed area during the historical peak period of the local ragweed season, and willing to travel for no more than 2 weeks (cumulative time) outside of their ragweed area during the entire season

Exclusion criteria

Exclusion Criteria:

  • Has had any hospital admissions for asthma
  • Has smoked within the past year, or has a ≥10-pack per year smoking history
  • Has had any previous immunotherapy with ragweed pollen extract, or was in a previous clinical trial with TOLAMBA™
  • Has used Xolair within the past 12 months
  • Has a history of anaphylaxis
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Study design

Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
738 participants (actual)

Study arms

  • Experimental
    1

    TOLAMBA™ dose-intense regimen

    Biological: Amb a 1 immunostimulatory oligodeoxyribonucleotide conjugate

  • Experimental
    2

    TOLAMBA™ lower-dose regimen

    Biological: Amb a 1 immunostimulatory oligodeoxyribonucleotide conjugate

  • Placebo comparator
    3

    Biological: Histamine base

Interventions

  • BiologicalAmb a 1 immunostimulatory oligodeoxyribonucleotide conjugate

    Escalating doses, 6 weekly subcutaneous (under the skin) injections

    Also known as: TOLAMBA™

  • BiologicalHistamine base

    Escalating doses, 6 weekly subcutaneous (under the skin) injections

06

What researchers measure

Primary outcomes

  1. Change from baseline in total nasal symptom score during the peak period of the ragweed pollen season.

    Time frame: Two years

07

Study locations

28 sites
  • Center Of Research Excellence
    Oxford, Alabama 36203, United States
  • Atlanta Allergy & Asthma Clinic
    Stockbridge, Georgia 30281, United States
  • Clinical Research of Atlanta
    Stockbridge, Georgia 30281, United States
  • Sneeze, Wheeze, and Itch Associates
    Normal, Illinois 61761, United States
  • Research Center of Indiana
    Indianapolis, Indiana 46208, United States
  • Asthma and Allergy Research Center
    Minneapolis, Minnesota 55416, United States
  • Clinical Research Institute
    Plymouth, Minnesota 55441, United States
  • Clinical Research of the Ozarks
    Columbia, Missouri 65203, United States
  • Clinical Research of The Ozarks
    Rolla, Missouri 65401, United States
  • Clinical Research Center
    Saint Louis, Missouri 63141, United States
  • Clinical Research of the Ozarks
    Warrensburg, Missouri 64093, United States
  • Midwest Allergy & Asthma Clinic
    Omaha, Nebraska 68130, United States
  • Creighton University
    Omaha, Nebraska 68131, United States
  • Asthma & Allergy Center
    Papillion, Nebraska 68046, United States
  • Princeton Center for Clinical Research
    Skillman, New Jersey 08558, United States
  • Allergy & Asthma Center
    High Point, North Carolina 27262, United States
  • Allergy & Respiratory Center
    Canton, Ohio 44718, United States
  • Bernstein Clinical Research Center
    Cincinnati, Ohio 45231, United States
  • Allergy, Asthma and Clinical Research Center
    Oklahoma City, Oklahoma 73120, United States
  • Asthma & Allergy Research Associates
    Upland, Pennsylvania 19013, United States
  • AARA Research Center
    Dallas, Texas 75231, United States
  • Pharmaceutical Research & Consulting
    Dallas, Texas 75231, United States
  • Kerrville Allergy and Asthma Associates
    Kerrville, Texas 78028, United States
  • Central Texas Health Research
    New Braunfels, Texas 78130, United States
  • Sylvana Research
    San Antonio, Texas 78229, United States
  • Asthma, Allergy & Sinus Center
    Greenfield, Wisconsin 53228, United States
  • University of Wisconsin Madison Medical School
    Madison, Wisconsin 53792, United States
  • Advanced Healthcare
    Milwaukee, Wisconsin 53209, United States
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References and documents

Individual participant data

Plan to share: No — The IND for Tolamba was withdrawn, it was reported to the agency that there was no plan to conduct clinical studies with this compound. \[per email from EA 18Dec2015. 3/1/2017 - No update

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 16, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00387738
Lead sponsor
Dynavax Technologies Corporation
Responsible party
Sponsor
First posted
Oct 13, 2006
Start date
Apr 2006
Primary completion
May 2007
Completion
Mar 2008
Last update
Apr 16, 2019

Study contacts

Eduardo Martins, MD, DPhil
study director · Dynavax Technologies Corporation

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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This study is terminated, as verified in Apr 2019. You cannot join it, but the record below documents what was studied.

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