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PsoriasisNCT02552316

Psoriasis Microbiome and Phototherapy

A study testing NB-UVB Phototherapy in people with Psoriasis, run by University of Pennsylvania at 1 site in United States.

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 ASPIRE study is a clinical trial designed to examine the microbes (e.g., bacteria) within psoriasis skin lesions compared with normal skin. The investigators will also examine the effect of NB-UVB (narrow-band ultraviolet B) phototherapy (i.e., light therapy) on skin microbes. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Psoriasis
What is being tested?
NB-UVB Phototherapy
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
34 participants
Where
1 siteUnited States
Study dates
Dec 2014to Oct 2020
Phase
Interventional
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Males and females 18 years of age and older.
  • Clinical diagnosis of psoriasis for at least 6 months as determined by subject interview of his/her medical history and confirmation of diagnosis through physical examination by Investigator.
  • Stable plaque psoriasis for at least 2 months before Screening and at Baseline (Week 1) as determined by subject interview of his/her medical history.
  • Subject is a candidate for phototherapy.
  • Subject has at least one psoriatic plaque measuring at least 6cm x 2cm located on either the arms or the legs (excluding intertriginous areas such as the axilla and inguinal folds)
  • Able and willing to give written informed consent and to comply with requirements of this study protocol.

Who cannot join

  • Subject has photosensitizing condition or other contraindication to phototherapy
  • Diagnosis of erythrodermic psoriasis, generalized or localized pustular psoriasis, medication-induced or medication-exacerbated psoriasis, or new onset guttate psoriasis.
  • Cannot discontinue or avoid topical therapies for psoriasis for at least 14 days prior to the Baseline (Week 1) visit and during the study other than on face, underarms, or groin.
  • Cannot discontinue or avoid UVB phototherapy or Excimer laser for at least 14 days prior to the Baseline (Week 1) visit.
  • Subject is receiving therapy for psoriasis that requires a wash out period of more than 14 days (e.g., psoralen-UVA phototherapy, oral systemic therapy, biologic therapy, or other investigational therapy).
  • Other active inflammatory dermatologic conditions (e.g., eczema) or presence of pustular or erythrodermic psoriasis.
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  • Any history of acute or chronic bacterial, fungal, or viral infection (including HIV, hepatitis, tuberculosis, or other severe or recurrent infections) within 30 days of baseline sample collection.
  • Subject has used systemic (oral or parenteral) antibiotic, antimycotic, or antiviral within 3 months or topical antibiotic, antimycotic, or antiviral within 14 days of baseline sample collection or requires use of any topical or systemic antibiotic, antimycotic, or antiviral during the study.
  • Consumption of large doses of commercial probiotics (greater than or equal to 108 cfu or organisms per day) including tablets, capsules, lozenges, chewing gum or powders in which probiotic is a primary component. Ordinary dietary components such as fermented beverages/milks, yogurts, and foods do not apply.
  • Presence of comorbid medical condition (e.g., HIV, malignancy within past 5 years other than successfully treated basal cell carcinoma, non-metastatic cutaneous squamous cell carcinoma or cervical carcinoma in-situ) that significantly alters the immune system or results in immunosuppression.
  • Subject is taking (within up to 180 days of baseline sample collection) or requires topical or systemic therapy during the study that significantly alters the immune system or results in immunosuppression (e.g., chemotherapy, oral or injectable corticosteroid). Inhaled corticosteroids for stable medical conditions are allowed.
  • Unstable dietary history as defined by major changes in diet within 30 days of baseline or during study, where the subject has or plans to eliminate or significantly increase major food group in the diet.
  • Recent history of substance abuse or psychiatric illness that could preclude compliance with the protocol.
  • History of any substance abuse within 365 days of screening visit.
  • Female subject who is pregnant or breast-feeding or considering becoming pregnant during the study.
  • Major surgery of the gastrointestinal tract, with the exception of cholecystectomy and appendectomy, in the past 5 years. Any major bowel resection at any time.
  • History of active uncontrolled gastrointestinal disorders or diseases including:
  • Inflammatory bowel disease including ulcerative colitis, Crohn's disease, or indeterminate colitis;
  • Irritable bowel syndrome;
  • Persistent, infectious gastroenteritis, colitis, or gastritis, persistent or chronic diarrhea or unknown etiology, Clostridium difficile infection (recurrent) or Helicobacter pylori infection (untreated).

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Pennsylvania

    Philadelphia, Pennsylvania, 19104

Other trials in United States

About this study

Official title: The Cutaneous Microbiota of Psoriasis: Lesional Variation and a Phase IV, Interventional Study of Its Response to Phototherapy

The ASPIRE study is a clinical trial designed to examine the microbes (e.g., bacteria) within psoriasis skin lesions compared with normal skin. The investigators will also examine the effect of NB-UVB (narrow-band ultraviolet B) phototherapy (i.e., light therapy) on skin microbes.

Conditions
Psoriasis
Being tested
NB-UVB Phototherapy
Keywords
microbiome, bacteria, NB-UVB Phototherapy, light therapy
Medical subject headings
Psoriasis

What participants receive

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

  • NB-UVB PhototherapyDevice

    Also called Phototherapy, Light therapy

Study groups in NCT02552316
Study groupRoleWhat they receive
NB-UVB PhototherapyOtherNB-UVB phototherapy is a therapy which uses ultraviolet B (UVB) light directed at the skin. This type of light therapy is given through the use of phototherapy booths which contain fluorescent tubes that emit UVB light. Booths used for phototherapy look similar to commercial tanning booths. NB-UVB phototherapy affects psoriasis by causing changes to the cells of the skin and producing a local effect by reducing the number of certain types of skin cells which have an impact on psoriasis formation.
Receives: Device: NB-UVB Phototherapy

What is being measured

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

  1. Cutaneous Microbiota Shannon's Alpha Diversity at Baseline

    Variation in the microbial diversity of skin affected and unaffected by psoriasis was characterized at baseline.

    The Alpha Diversity Index is a quantitative measure that reflects the diversity of bacterial species in a sample. The greater the index value, the more diverse the skin microbiota. The diversity of the microbiota present in the given sample was measured using the Shannon Diversity Index, whereby each "arm title" is describing the difference in the measure of diversity between the comparison groups.

    Measured: Baseline

  2. Change in Cutaneous Microbiota Shannon's Alpha Diversity at Baseline vs Week 8

    Variation in the microbial diversity of skin affected and unaffected by psoriasis was characterized at baseline. Changes in microbial diversity was assessed between baseline and week 8.

    The Alpha Diversity Index is a quantitative measure that reflects the diversity of bacterial species in a sample. The greater the index value, the more diverse the skin microbiota. The diversity of the microbiota present in the given sample was measured using the Shannon Diversity Index, whereby each "arm title" is describing the difference in the measure of diversity between the comparison groups.

    Measured: Week 8

  3. Change in Cutaneous Microbiota Shannon's Alpha Diversity at Baseline vs Week 9.

    Variation in the microbial diversity of skin affected and unaffected by psoriasis was characterized at baseline. Changes in microbial diversity was assessed between baseline and week 9.

    The Alpha Diversity Index is a quantitative measure that reflects the diversity of bacterial species in a sample. The greater the index value, the more diverse the skin microbiota. The diversity of the microbiota present in the given sample was measured using the Shannon Diversity Index, whereby each "arm title" is describing the difference in the measure of diversity between the comparison groups.

    Measured: Week 9

  4. Cutaneous Microbiota Jaccard's Beta Diversity at Baseline

    Variation in the microbial diversity of skin affected and unaffected by psoriasis was characterized at baseline.

    The Beta Diversity Index is a quantitative measure that reflects the diversity of bacterial species between two different regions. The greater the index, the more diverse the microbiota between the two regions.

    Measured: Baseline

  5. Change in Cutaneous Microbiota Jaccard's Beta Diversity at Baseline vs Week 8

    Variation in the microbial diversity of skin affected and unaffected by psoriasis was characterized at baseline. Changes in microbial diversity was assessed between baseline and week 8.

    The Beta Diversity Index is a quantitative measure that reflects the diversity of bacterial species between two different regions. The greater the index, the more diverse the microbiota between the two regions.

    Measured: Week 8

  6. Change in Cutaneous Microbiota Jaccard's Beta Diversity at Baseline vs Week 9

    Variation in the microbial diversity of skin affected and unaffected by psoriasis was characterized at baseline. Changes in microbial diversity was assessed between baseline and week 9.

    The Beta Diversity Index is a quantitative measure that reflects the diversity of bacterial species between two different regions. The greater the index, the more diverse the microbiota between the two regions.

    Measured: Week 9

  7. Cutaneous Bacterial Load at Baseline

    Bacterial count per sample at baseline prior to initiation of phototherapy.

    Measured: Baseline

  8. Change in Cutaneous Bacterial Load Between Baseline and Week 8.

    Bacterial count per sample at baseline prior to initiation of phototherapy vs at week 8 after initiation of phototherapy.

    Measured: Week 8

  9. Change in Cutaneous Bacterial Load Between Baseline and Week 9.

    Bacterial count per sample at baseline prior to initiation of phototherapy vs at week 9 after initiation of phototherapy.

    Measured: Week 9

Timeline

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

  1. First posted17 Sep 2015 (estimated)
  2. Study startDec 2014
  3. Primary completionOct 2019
  4. Study completionOct 2020

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 N/A
Primary purpose
Other
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
34 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02552316
Sponsor's protocol ID
821876
Status last verified
Nov 2020
First submitted
9 Sep 2015
Last updated
2 Dec 2020
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing NB-UVB Phototherapy in people with Psoriasis, run by University of Pennsylvania at 1 site 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 6 inclusion and 20 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 2 Dec 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 2 Dec 2020). 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?

Cutaneous Microbiota Shannon's Alpha Diversity at Baseline (time frame: Baseline). The study lists 9 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 2 Dec 2020; AzTrials last refreshed its copy on 26 Oct 2026.

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