AzTrials
AzTrials

Rhinitis; Allergic, With AsthmaPhase 2/3NCT00783198

Efficacy and Long-Term Safety of Ragweed (Ambrosia Artemisiifolia) Sublingual Tablet in Adults With a History of Ragweed-Induced Rhinoconjunctivitis With or Without Asthma (Study P05233)(COMPLETED)

A Phase 2/3 study testing SCH 39641 6 Amb a 1-U and SCH 39641 12 Amb a 1-U in people with Rhinitis; Allergic, With Asthma and Conjunctivitis, run by ALK-Abelló A/S.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

This study will evaluate the efficacy and safety of ragweed sublingual tablet (SCH 39641/MK-3641) compared with placebo in participants with ragweed-induced rhinoconjunctivitis over a one-year period. Read more about this study

Who is it for?
Ages 18 to 50 years
What is being tested?
SCH 39641 6 Amb a 1-U and SCH 39641 12 Amb a 1-U
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
565 participants
Where
No sites listed yet
Study dates
Sep 2009to May 2011
Phase
Phase 2/3
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 50 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Must have a clinical history of significant ragweed-induced allergic rhinoconjunctivitis of at least 2 years duration, with or without asthma and have received treatment during the previous RS.
  • Must have a positive skin prick test response to Ambrosia artemisiifolia at Screening Visit.
  • Must be positive for specific immunoglobulin E (IgE) against Ambrosia artemisiifolia at Screening Visit.
  • Must have an forced expiratory volume in 1 second (FEV1) of at least 70% of predicted at Screening Visit.
  • Safety laboratory tests and vital signs conducted at the Screening Visit must be within normal limits or clinically acceptable to the investigator/sponsor

Who cannot join

  • Clinical history of symptomatic seasonal allergic rhinitis and/or asthma having received regular medication, due to another allergen during or potentially overlapping the RS.
  • Clinical history of significant symptomatic perennial allergic rhinitis and/or asthma due to an allergen to which the participant is regularly exposed.
  • Receipt of an immunosuppressive treatment within 3 months prior to the Screening Visit (except steroids for allergic and asthma symptoms).
  • Clinical history of severe asthma.
  • Asthma requiring medium or high dose inhaled corticosteroids.
  • History of anaphylaxis with cardiorespiratory symptoms.
Show all 13Show fewer
  • History of chronic urticaria and angioedema.
  • Clinical history of chronic sinusitis 2 years prior to the Screening Visit.
  • Current severe atopic dermatitis.
  • Breast-feeding, pregnant, or intending to become pregnant.
  • Had previous treatment by immunotherapy with ragweed allergen or any other allergen 5 years prior to Screening Visit.
  • History of allergy, hypersensitivity or intolerance to the ingredients of the investigational medicinal products (except for Ambrosia artemisiifolia), rescue medications, or self-injectable epinephrine.
  • History of self-injectable epinephrine use.

About this study

Official title: A Multicenter, Double-Blind, Randomized, Placebo-Controlled, Parallel-Group Study Evaluating the Efficacy and Long-Term Safety of Ragweed (Ambrosia Artemisiifolia) Sublingual Tablet (SCH 39641) in Adult Subjects With a History of Ragweed-Induced Rhinoconjunctivitis With or Without Asthma

This study will evaluate the efficacy and safety of ragweed sublingual tablet (SCH 39641/MK-3641) compared with placebo in participants with ragweed-induced rhinoconjunctivitis over a one-year period. It is expected that ragweed allergic participants on one of the active arms of the trial will have decreased allergic rhinoconjunctivitis symptoms and require less allergy rescue medications during ragweed pollen season.

Being tested
SCH 39641 6 Amb a 1-U, SCH 39641 12 Amb a 1-U, Placebo
Medical subject headings
Rhinitis, Conjunctivitis

What participants receive

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

  • SCH 39641 6 Amb a 1-UBiological

    Also called MK-3641

    SCH 39641 6 Amb a 1-U sublingual tablets administered once daily

  • SCH 39641 12 Amb a 1-UBiological

    Also called MK-3641

    SCH 39641 12 Amb a 1-U sublingual tablets administered once daily

  • PlaceboBiological

    matching placebo sublingual tablets administered once daily

Study groups in NCT00783198
Study groupRoleWhat they receive
SCH 39641 6 Amb a 1-UExperimentalParticipants receive Ambrosia artemisiifolia allergen extract (SCH 39641 6 Amb a 1-U) rapidly dissolving tablets, administered once daily sublingually for approximately 52 weeks
Receives: Biological: SCH 39641 6 Amb a 1-U
SCH 39641 12 Amb a 1-UExperimentalParticipants receive Ambrosia artemisiifolia allergen extract (SCH 39641 12 Amb a 1-U) rapidly dissolving tablets, administered once daily sublingually for approximately 52 weeks
Receives: Biological: SCH 39641 12 Amb a 1-U
PlaceboPlacebo comparatorParticipants receive placebo matching ambrosia artemisiifolia allergen extract, rapidly dissolving tablets, administered once daily sublingually for approximately 52 weeks
Receives: Biological: Placebo

What is being measured

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

  1. Combined (Sum of) Rhinoconjunctivitis Daily Symptom Score (DSS) and Daily Medication Score (DMS) Averaged Over the Peak Ragweed Season (RS)

    The total combined score is a composite endpoint that combines the rhinoconjuntivitis DSS and the rhinoconjunctivitis DMS. The rhinoconjunctivitis DSS consisted of a total of 6 symptoms (runny nose, blocked nose, sneezing, itchy nose, gritty feeling/red/itchy eyes and watery eyes) that were measured on a scale of 0 to 3 (0=no symptoms, 3=severe symptoms; score range: 0-18). Rhinoconjunctivitis DMS was based on participant use of specific study-provided rescue medicationwith different rescue medications being assigned different scores/dose unit. The maximum rhinoconjunctivitis DMS score was 36. The sum of the rhinoconjunctivitis DSS and DMS could range from 0 to 54, with a lower score indicating less rhinoconjuntivitis symptoms and medication use. Raw means for DSS+DMS were converted to adjusted means based on an analysis of variance (ANOVA) model with baseline asthmatic condition, pollen region and treatment group as fixed effects.

    Measured: The 15-day period during the ragweed season with the highest moving pollen average

Secondary outcomes (4)
  1. Average Combined Rhinoconjunctivitis DSS and DMS Over the Entire RS

    The total combined score is a composite endpoint that combines the rhinoconjuntivitis DSS and the rhinoconjunctivitis DMS. The rhinoconjunctivitis DSS consisted of a total of 6 symptoms (runny nose, blocked nose, sneezing, itchy nose, gritty feeling/red/itchy eyes and watery eyes) that were measured on a scale of 0 to 3 (0=no symptoms, 3=severe symptoms; score range: 0-18). Rhinoconjunctivitis DMS was based on participant use of specific study-provided rescue medicationwith different rescue medications being assigned different scores/dose unit. The maximum rhinoconjunctivitis DMS score was 36. The sum of the rhinoconjunctivitis DSS and DMS could range from 0 to 54, with a lower score indicating less rhinoconjuntivitis symptoms and medication use. Raw means for DSS+DMS were converted to adjusted means based on an ANOVA model with baseline asthmatic condition, pollen region and treatment group as fixed effects.

    Measured: Approximately 5 weeks

  2. Average Rhinoconjunctivitis DSS for the Peak RS

    The rhinoconjunctivitis DSS consisted of a total of 6 symptoms (runny nose, blocked nose, sneezing, itchy nose, gritty feeling/red/itchy eyes and watery eyes) that were measured on a scale of 0 to 3 (0=no symptoms, 3=severe symptoms; score range: 0-18), with a lower score indicating less rhinoconjuntivitis symptoms. Raw means for DSS were converted to adjusted means based on an ANOVA model with baseline asthmatic condition, pollen region and treatment group as fixed effects.

    Measured: The 15-day period during the ragweed season with the highest moving pollen average

  3. Average Rhinoconjunctivitis DSS for the Entire RS

    The rhinoconjunctivitis DSS consisted of a total of 6 symptoms (runny nose, blocked nose, sneezing, itchy nose, gritty feeling/red/itchy eyes and watery eyes) that were measured on a scale of 0 to 3 (0=no symptoms, 3=severe symptoms; score range: 0-18), with a lower score indicating less rhinoconjuntivitis symptoms. Raw means for DSS were converted to adjusted means based on an ANOVA model with baseline asthmatic condition, pollen region and treatment group as fixed effects.

    Measured: Approximately 5 weeks

  4. Average Rhinoconjunctivitis DMS for the Peak RS

    Rhinoconjunctivitis DMS was based on participant use of specific study-provided rescue medicationwith different rescue medications being assigned different scores/dose unit. The maximum rhinoconjunctivitis DMS score was 36, with a lower score indicating less rhinoconjuntivitis medication use. Raw means for DMS were converted to adjusted means based on an ANOVA model with baseline asthmatic condition, pollen region and treatment group as fixed effects.

    Measured: The 15-day period during the ragweed season with the highest moving pollen average

Timeline

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

  1. First posted31 Oct 2008 (estimated)
  2. Study startSep 2009
  3. Primary completionMay 2011
  4. Study completionMay 2011

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 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
565 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00783198
Sponsor's protocol ID
P05233
Other IDs
2008-003863-38, MK-3641-002, 2008
Status last verified
Jan 2017
First submitted
30 Oct 2008
Last updated
3 Mar 2017
Data monitoring committee
Yes

Publications

  • Christensen LH, Ipsen H, Nolte H, Maloney J, Nelson HS, Weber R, Lund K. Short ragweeds is highly cross-reactive with other ragweeds. Ann Allergy Asthma Immunol. 2015 Dec;115(6):490-495.e1. doi: 10.1016/j.anai.2015.09.016. Epub 2015 Oct 21.

    PubMed 26507708
  • Kim H, Waserman S, Hebert J, Blaiss M, Nelson H, Creticos P, Kaur A, Maloney J, Li Z, Nolte H. Efficacy and safety of ragweed sublingual immunotherapy in Canadian patients with allergic rhinoconjunctivitis. Allergy Asthma Clin Immunol. 2014 Nov 10;10(1):55. doi: 10.1186/1710-1492-10-55. eCollection 2014.

    PubMed 25788949
  • Nolte H, Amar N, Bernstein DI, Lanier BQ, Creticos P, Berman G, Kaur A, Hebert J, Maloney J. Safety and tolerability of a short ragweed sublingual immunotherapy tablet. Ann Allergy Asthma Immunol. 2014 Jul;113(1):93-100.e3. doi: 10.1016/j.anai.2014.04.018. Epub 2014 May 14.

    PubMed 24836393
  • Nolte H, Hebert J, Berman G, Gawchik S, White M, Kaur A, Liu N, Lumry W, Maloney J. Randomized controlled trial of ragweed allergy immunotherapy tablet efficacy and safety in North American adults. Ann Allergy Asthma Immunol. 2013 Jun;110(6):450-456.e4. doi: 10.1016/j.anai.2013.03.013. Epub 2013 May 2.

    PubMed 23706715

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing SCH 39641 6 Amb a 1-U and SCH 39641 12 Amb a 1-U in people with Rhinitis; Allergic, With Asthma and Conjunctivitis, run by ALK-Abelló A/S.

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 5 inclusion and 13 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: finished, as of the sponsor's last update on 3 Mar 2017. Status can change between updates, so confirm with the study contact before making plans.

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 combined 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.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 14 Jul 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Combined (Sum of) Rhinoconjunctivitis Daily Symptom Score (DSS) and Daily Medication Score (DMS) Averaged Over the Peak Ragweed Season (RS) (time frame: The 15-day period during the ragweed season with the highest moving pollen average). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00783198, which also lists 4 linked publications.

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 3 Mar 2017.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in