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AsthmaPhase 1NCT01193049

A Study on the Effects of a Single Dose of Prednisone on Biomarkers of Allergen Responses in Asthmatics (MK-0000-175)

A Phase 1 study testing Prednisone in people with Asthma, run by Merck Sharp & Dohme LLC.

Completed

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

Official record
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Trial summary

The purpose of this study is to evaluate the relationship between upper and lower airway allergen-induced cytokine responses in mild asthmatics by attempting to demonstrate the following: 1) a positive correlation between allergen-induced Type 2 T-helper cell (Th2) cytokines (interleukins 5 and 13) in sputum and nasal… Read more about this study

Who is it for?
Ages 18 to 55 years
Conditions the study is for
Asthma
What is being tested?
Prednisone
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
11 participants
Where
No sites listed yet
Study dates
Aug 2010to May 2011
Phase
Phase 1
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 55 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Has a clinical history of mild to moderate asthma for at least 6 months, but otherwise is in good health
  • Participant with allergic rhinitis and asthma has a history of nonseasonal airway symptoms in response to aeroallergens OR has seasonal symptoms but can be evaluated out-of-season
  • Is clinically stable and free of respiratory infection or change in allergen exposure for at least 4 weeks prior to start of study

Who cannot join

  • Has intolerance to the study drug, inhaled salbutamol, antihistamines, or any other potential asthma/anaphylaxis rescue medication
  • Has intolerance to lidocaine/lignocaine, sedatives, atropine or glycopyrrolate, or any other medication associated with bronchoscopy
  • Has taken oral parenteral corticosteroids within 8 weeks or inhaled corticosteroids/nasal corticosteroids within 5 weeks of screening and/or during the study
  • Has recent (4 weeks) or ongoing upper or lower respiratory tract infection
  • Has active allergic rhinitis at screening
  • Has received a vaccination within 3 weeks of screening

About this study

Official title: A Two-Part, Randomized Clinical Trial to Study the Effects of a Single Dose of Prednisone on Biomarkers of Allergen Responses in Asthmatics

The purpose of this study is to evaluate the relationship between upper and lower airway allergen-induced cytokine responses in mild asthmatics by attempting to demonstrate the following: 1) a positive correlation between allergen-induced Type 2 T-helper cell (Th2) cytokines (interleukins 5 and 13) in sputum and nasal exudates; and 2) a positive correlation between effects of prednisone versus placebo on Th2 cytokines in sputum and nasal exudates.

Conditions
Asthma
Being tested
Prednisone, Placebo
Keywords
Nasal Allergen Challenge, Inhaled Allergen Challenge, Asthma
Medical subject headings
Asthma

What participants receive

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

  • PrednisoneDrug

    Prednisone (25 mg) tablets as a single oral dose on Day 1 of each study period

  • PlaceboDrug

    Matching placebo tablets as a single oral dose on Day 1 of each study period

Study groups in NCT01193049
Study groupRoleWhat they receive
Prednisone, then PlaceboExperimentalPrednisone in the first crossover treatment period and placebo in the second crossover treatment period
Receives: Drug: Prednisone; Drug: Placebo
Placebo, then PrednisoneExperimentalPlacebo in the first crossover treatment period and prednisone in the second crossover treatment period
Receives: Drug: Prednisone; Drug: Placebo

What is being measured

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

  1. Geometric Mean Fold Change From Baseline in Interleukin-5 (IL-5) Concentration From Nasal Exudates and Sputum at 7 Hours Post-allergen Challenge

    Participants were treated with either prednisone or placebo, followed 1 hour later by nasal allergen challenge and then inhaled allergen challenge. After 7 hours had elapsed, nasal exudates (NE) and sputum (SP) were collected, then the concentrations of IL-5 were determined from NE and SP collected after 7 hours and previously at baseline (BL), to derive the fold change (FC) from BL for each participant. The geometric mean (GM) was determined by averaging FC from BL for all analyzed participants.

    Measured: Baseline and 7 hours post-allergen challenge

  2. Geometric Mean Fold Change From Baseline in Interleukin-13 (IL-13) From Nasal Exudates and Sputum at 7 Hours Post-allergen Challenge

    Participants were treated with either prednisone or placebo, followed 1 hour later by nasal allergen challenge and then inhaled allergen challenge. After 7 hours had elapsed, NE and SP were collected, then the concentrations of IL-13 were determined from NE and SP collected after 7 hours and previously at BL, to derive the FC from BL for each participant. The GM was determined by averaging FC from BL for all analyzed participants.

    Measured: Baseline and 7 hours post-allergen challenge

Secondary outcomes (11)
  1. Geometric Mean Fold Change From Baseline in Thymus and Activation Regulated Chemokine (TARC) From Nasal Exudates and Sputum at 7 Hours Post-allergen Challenge

    Participants were treated with either prednisone or placebo, followed 1 hour later by nasal allergen challenge and then inhaled allergen challenge. After 7 hours had elapsed, NE and SP were collected, then the concentrations of TARC were determined from NE and SP collected after 7 hours and previously at BL, to derive the FC from BL for each participant. The GM was determined by averaging FC from BL for all analyzed participants.

    Measured: Baseline and 7 hours post-allergen challenge

  2. Geometric Mean Fold Change From Baseline in Eotaxin-3 From Nasal Exudates and Sputum at 7 Hours Post-allergen Challenge

    Participants were treated with either prednisone or placebo, followed 1 hour later by nasal allergen challenge and then inhaled allergen challenge. After 7 hours had elapsed, NE and SP were collected, then the concentrations of Eotaxin-3 were determined from NE and SP collected after 7 hours and previously at BL, to derive the FC from BL for each participant. The GM was determined by averaging FC from BL for all analyzed participants.

    Measured: Baseline and 7 hours post-allergen challenge

  3. Change in Vibration Response Imaging (VRI) After Metacholine Exposure

    One hour before treatment with prednisone/placebo, participants inhaled for 2 minutes a nebulised solution of metacholine (0.13 ml/min); then one hour after prednisone/placebo treatment were challenged with allergens. From 1 to 7 hours after allergen challenge, ventilatory heterogeneity was assessed by Vibration Response Imaging (VRI) by monitoring the following: inspiration/expiration (I/E) amplitude ratio, I/E duration ratio, synchrony duration, and quantitative lung data.

    Measured: From 1 to 7 hours post-allergen challenge

  4. Geometric Mean Fold Change From Baseline in RNA Expression for Genes Encoding IL-5 and IL-13 From Sputum at 7 Hours Post-allergen Challenge

    Participants were treated with either prednisone or placebo, followed 1 hour later by nasal allergen challenge and then inhaled allergen challenge. After 7 hours had elapsed, SP were collected, then the RNA expression profiles of IL-5 and IL-13 genes were determined from SP collected after 7 hours and previously at baseline, to derive the FC from BL for each participant. The GM was determined by averaging FC from BL for all analyzed participants.

    Measured: Baseline and 7 hours post-allergen challenge

  5. Geometric Mean Fold Change From Baseline in Interleukin-17 (IL-17) From Nasal Exudates and Sputum at 7 Hours Post-allergen Challenge

    Participants were treated with either prednisone or placebo, followed 1 hour later by nasal allergen challenge and then inhaled allergen challenge. After 7 hours had elapsed, NE and SP were collected, then the concentrations of IL-17 were determined from NE and SP collected after 7 hours and previously at BL, to derive the FC from BL for each participant. The GM was determined by averaging FC from BL for all analyzed participants.

    Measured: Baseline and 7 hours post-allergen challenge

  6. Geometric Mean Fold Change From Baseline in Interleukin-1β (IL-1β) From Nasal Exudates and Sputum at 7 Hours Post-allergen Challenge

    Participants were treated with either prednisone or placebo, followed 1 hour later by nasal allergen challenge and then inhaled allergen challenge. After 7 hours had elapsed, NE and SP were collected, then the concentrations of IL-1β were determined from NE and SP collected after 7 hours and previously at BL, to derive the FC from BL for each participant. The GM was determined by averaging FC from BL for all analyzed participants.

    Measured: Baseline and 7 hours post-allergen challenge

  7. Geometric Mean Fold Change From Baseline in Macrophage Inflammatory Protein-1β (MIP-1β) From Nasal Exudates and Sputum at 7 Hours Post-allergen Challenge

    Participants were treated with either prednisone or placebo, followed 1 hour later by nasal allergen challenge and then inhaled allergen challenge. After 7 hours had elapsed, NE and SP were collected, then the concentrations of MIP-1β were determined from NE and SP collected after 7 hours and previously at BL, to derive the FC from BL for each participant. The GM was determined by averaging FC from BL for all analyzed participants.

    Measured: Baseline and 7 hours post-allergen challenge

  8. Geometric Mean Fold Change From Baseline in Thymic Stromal Lymphopoietin (TSLP) From Nasal Exudates and Sputum at 7 Hours Post-allergen Challenge

    Participants were treated with either prednisone or placebo, followed 1 hour later by nasal allergen challenge and then inhaled allergen challenge. After 7 hours had elapsed, NE and SP were collected, then the concentrations of TSLP were determined from NE and SP collected after 7 hours and previously at BL, to derive the FC from BL for each participant. The GM was planned to be determined by averaging FC from BL for all analyzed participants.

    Measured: Baseline and 7 hours post-allergen challenge

  9. Geometric Mean Fold Change From Baseline in Interleukin-23 (IL-23) From Nasal Exudates and Sputum at 7 Hours Post-allergen Challenge

    Participants were treated with either prednisone or placebo, followed 1 hour later by nasal allergen challenge and then inhaled allergen challenge. After 7 hours had elapsed, NE and SP were collected, then the concentrations of IL-23 were determined from NE and SP collected after 7 hours and previously at BL, to derive the FC from BL for each participant. The GM was plan to be determined by averaging FC from BL for all analyzed participants.

    Measured: Baseline and 7 hours post-allergen challenge

  10. Geometric Mean Fold Change From Baseline in Cytokines From Bronchoalveolar Lavage Fluid (BALf)

    Participants were treated with either prednisone or placebo, followed 1 hour later by nasal allergen challenge and then inhaled allergen challenge. After 23 hours had elapsed, BALf were collected, then the concentrations of IL-5, IL-13, and TARC were determined from BALf collected after 23 hours and previously at BL, to derive the FC from BL for each participant. The GM was planned to be determined by averaging FC from BL for all analyzed participants.

    Measured: Baseline and 23 hours post-allergen challenge

  11. Geometric Mean Fold Change From Baseline in Nasal and Bronchial Eicosanoids and Leukotrienes at 7 Hours Post-allergen Challenge.

    Participants were treated with either prednisone or placebo, followed 1 hour later by nasal allergen challenge and then inhaled allergen challenge. After 7 hours had elapsed, NE and SP were collected, then prostaglandin and leukotriene concentrations were determined from NE and SP collected after 7 hours and previously at BL, to derive the FC from BL for each participant. The GM was planned to be determined by averaging FC from BL for all analyzed participants.

    Measured: Baseline and 7 hours post-allergen challenge

Timeline

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

  1. First posted1 Sep 2010 (estimated)
  2. Study startAug 2010
  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 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
11 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01193049
Sponsor's protocol ID
0000-175
Other IDs
2010-020518-27
Status last verified
Sep 2015
First submitted
30 Aug 2010
Last updated
4 Sep 2015
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Prednisone in people with Asthma, run by Merck Sharp & Dohme LLC.

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 3 inclusion and 6 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 4 Sep 2015. 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. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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 2 Aug 2012). 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?

Geometric Mean Fold Change From Baseline in Interleukin-5 (IL-5) Concentration From Nasal Exudates and Sputum at 7 Hours Post-allergen Challenge (time frame: Baseline and 7 hours post-allergen challenge). The study lists 2 primary outcomes in all. 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 4 Sep 2015.

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