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Study · Randomized controlled trial · n = 7 · 1983

4 results

Vasoactive intestinal peptide causes bronchodilatation and protects against histamine-induced bronchoconstriction in asthmatic subjects.

Morice A, Unwin RJ, Sever PS

Lancet (London, England)1 Nov 1983Cited by 71 (Europe PMC)

Summary

The text of this summary is not shown here, because the article license does not allow reuse. Read it at the source (opens in a new tab)

Text rights: Publisher copyright. Results still quote short attributed sentences.

Results from this study4

4 results from studies that gave the peptide. 4 results from people.

  1. 01HumanRandomized controlled trialEfficacy outcome

    In asthmatic volunteers, intravenous VIP caused significant bronchodilatation.

    In plain wordsIn people with asthma, VIP given into a vein opened the airways.

    Outcome
    IncreaseBronchodilatation
    Study

    n = 7

    Outcome group
    Respiratory function · Respiratory
    Studied dose
    6 pmol/kg/min · intravenous · 15 minAs given in this study (human).

    Source sentences

    Summary
    Vasoactive intestinal peptide (VIP) caused significant bronchodilatation in seven asthmatic volunteers when given intravenously at the rate of 6 pmol/kg/min for 15 min during a double-blind study.
  2. 02HumanRandomized controlled trialSafety outcome

    In asthmatic volunteers, tachycardia was observed during VIP infusion.

    In plain wordsIn people with asthma, VIP infusion made the heart beat faster.

    Outcome
    IncreaseTachycardia
    Study

    n = 7

    Outcome group
    Adverse events · Cardiovascular
    Studied dose
    6 pmol/kg/min · intravenous · 15 minAs given in this study (human).

    Source sentences

    Summary
    Tachycardia
    1 context sentence
    Summary · context
    Vasoactive intestinal peptide (VIP) caused significant bronchodilatation in seven asthmatic volunteers when given intravenously at the rate of 6 pmol/kg/min for 15 min during a double-blind study
  3. 03HumanRandomized controlled trialSafety outcome

    In asthmatic volunteers, cutaneous flushing was observed during VIP infusion.

    In plain wordsIn people with asthma, VIP infusion made the skin flush.

    Outcome
    IncreaseCutaneous flushing
    Study

    n = 7

    Outcome group
    Adverse events · Whole body
    Studied dose
    6 pmol/kg/min · intravenous · 15 minAs given in this study (human).

    Source sentences

    Summary
    Tachycardia and cutaneous flushing were observed during the infusion.
    1 context sentence
    Summary · context
    Vasoactive intestinal peptide (VIP) caused significant bronchodilatation in seven asthmatic volunteers when given intravenously at the rate of 6 pmol/kg/min for 15 min during a double-blind study
  4. 04HumanRandomized controlled trialEfficacy outcome

    In asthmatic volunteers, VIP infusion ameliorated histamine-induced bronchoconstriction in all subjects.

    In plain wordsIn people with asthma, VIP infusion reduced airway narrowing caused by histamine in all subjects.

    Outcome
    DecreaseHistamine-induced bronchoconstriction
    Study

    n = 7

    Outcome group
    Respiratory function · Respiratory
    Studied dose
    6 pmol/kg/min · intravenous · 15 minAs given in this study (human).

    Source sentences

    Summary
    VIP also ameliorated histamine-induced bronchoconstriction in all subjects.
    1 context sentence
    Summary · context
    Vasoactive intestinal peptide (VIP) caused significant bronchodilatation in seven asthmatic volunteers when given intravenously at the rate of 6 pmol/kg/min for 15 min during a double-blind study

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Version 2Current

    9 Oct 2026, 19:08 UTC

    Study results updated

  2. Version 1

    9 Oct 2026, 12:41 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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