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Rhinitis, Allergic, SeasonalPhase 2NCT00387738

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

A Phase 2 study testing Amb a 1 immunostimulatory oligodeoxyribonucleotide conjugate and Histamine base in people with Rhinitis, Allergic, Seasonal, run by Dynavax Technologies Corporation at 28 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial 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 more about this study

Who is it for?
Ages 18 to 55 years
Conditions the study is for
Rhinitis, Allergic, Seasonal
What is being tested?
Amb a 1 immunostimulatory oligodeoxyribonucleotide conjugate and Histamine base
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
738 participants
Where
28 sitesUnited States
Study dates
Apr 2006to Mar 2008
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 55 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • 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

Who cannot join

  • 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

Trial locations and contacts

28 sites in 1 country.

28 sites in 1 country

United States28 sites
  • Allergy & Respiratory Center

    Canton, Ohio, 44718

  • Bernstein Clinical Research Center

    Cincinnati, Ohio, 45231

  • Clinical Research of the Ozarks

    Columbia, Missouri, 65203

  • AARA Research Center

    Dallas, Texas, 75231

  • Pharmaceutical Research & Consulting

    Dallas, Texas, 75231

  • Asthma, Allergy & Sinus Center

    Greenfield, Wisconsin, 53228

  • Allergy & Asthma Center

    High Point, North Carolina, 27262

  • Research Center of Indiana

    Indianapolis, Indiana, 46208

  • Kerrville Allergy and Asthma Associates

    Kerrville, Texas, 78028

  • University of Wisconsin Madison Medical School

    Madison, Wisconsin, 53792

  • Advanced Healthcare

    Milwaukee, Wisconsin, 53209

  • Asthma and Allergy Research Center

    Minneapolis, Minnesota, 55416

  • Central Texas Health Research

    New Braunfels, Texas, 78130

  • Sneeze, Wheeze, and Itch Associates

    Normal, Illinois, 61761

  • Allergy, Asthma and Clinical Research Center

    Oklahoma City, Oklahoma, 73120

  • Midwest Allergy & Asthma Clinic

    Omaha, Nebraska, 68130

  • Creighton University

    Omaha, Nebraska, 68131

  • Center Of Research Excellence

    Oxford, Alabama, 36203

  • Asthma & Allergy Center

    Papillion, Nebraska, 68046

  • Clinical Research Institute

    Plymouth, Minnesota, 55441

  • Clinical Research of The Ozarks

    Rolla, Missouri, 65401

  • Sylvana Research

    San Antonio, Texas, 78229

  • Princeton Center for Clinical Research

    Skillman, New Jersey, 08558

  • Clinical Research Center

    St Louis, Missouri, 63141

  • Atlanta Allergy & Asthma Clinic

    Stockbridge, Georgia, 30281

  • Clinical Research of Atlanta

    Stockbridge, Georgia, 30281

  • Asthma & Allergy Research Associates

    Upland, Pennsylvania, 19013

  • Clinical Research of the Ozarks

    Warrensburg, Missouri, 64093

Other trials in United States

About this study

Official title: A Randomized, Double-Masked, Placebo-Controlled, Multicenter, Dose-Regimen Study of the Efficacy and Safety of TOLAMBA™ in Ragweed-Allergic Rhinitis Adults

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.

Being tested
Amb a 1 immunostimulatory oligodeoxyribonucleotide conjugate, Histamine base
Keywords
Ragweed, Allergy, Allergic, Rhinitis, Hay Fever, Seasonal, Treatment, Immunotherapy, Vaccine
Medical subject headings
Rhinitis, Allergic, Seasonal, Hypersensitivity, Rhinitis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Amb a 1 immunostimulatory oligodeoxyribonucleotide conjugateBiological

    Also called TOLAMBA™

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

  • Histamine baseBiological

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

Study groups in NCT00387738
Study groupRoleWhat they receive
1ExperimentalTOLAMBA™ dose-intense regimen
Receives: Biological: Amb a 1 immunostimulatory oligodeoxyribonucleotide conjugate
2ExperimentalTOLAMBA™ lower-dose regimen
Receives: Biological: Amb a 1 immunostimulatory oligodeoxyribonucleotide conjugate
3Placebo comparatorNot described
Receives: Biological: Histamine base

What is being measured

The primary outcome is the main question the study is designed to answer.

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

    Measured: Two years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Oct 2006 (estimated)
  2. Study startApr 2006
  3. Primary completionMay 2007
  4. Study completionMar 2008

Why it stopped: Interim data indicated that subjects exhibited no meaningful allergic disease during the first ragweed season, making it impossible to measure treatment effect.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
738 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00387738
Sponsor's protocol ID
DV1-SAR-09
Status last verified
Apr 2019
First submitted
11 Oct 2006
Last updated
16 Apr 2019
Results posted
No
Data monitoring committee
Yes
Individual data sharing
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

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Amb a 1 immunostimulatory oligodeoxyribonucleotide conjugate and Histamine base in people with Rhinitis, Allergic, Seasonal, run by Dynavax Technologies Corporation at 28 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 16 Apr 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 28 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: Interim data indicated that subjects exhibited no meaningful allergic disease during the first ragweed season, making it impossible to measure treatment effect.). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change from baseline in total nasal symptom score during the peak period of the ragweed pollen season. (time frame: Two years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Apr 2019.

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