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Peptide encyclopedia/ VIP
Illustration for VIP

THE PEPSRADAR ENCYCLOPEDIA

VIP

Vascular, inflammatory, and respiratory research

Research topics · Sources checked 2026-10-04

Read the studies ↓

VIP AT A GLANCE

The question behind the molecule.

Read findings and limitations ↓
2 selected publicationsContext mattersThis negative comparison should remain visible. It neither proves benefit nor answers every proposed chronic use of VIP.

What is VIP?

Vasoactive intestinal peptide participates in vascular and immune signaling. A large trial of intravenous aviptadil in COVID-19 respiratory failure did not show a significant improvement in its primary outcome.

Biological role or research focus

Vascular, inflammatory, and respiratory research.

This negative comparison should remain visible. It neither proves benefit nor answers every proposed chronic use of VIP.

Role reference: Intravenous aviptadil and remdesivir for treatment of COVID-19-associated hypoxaemic respiratory failure in the USA (TESICO): a randomised, placebo-controlled trial. · 2023 ↗

Names you may encounter

Vasoactive intestinal peptide · Aviptadil

Search terms can include brands, combinations, or historical names. They are not automatic product equivalents.

Class / identity
Vasoactive intestinal peptide; aviptadil drug name
Research focus
Vascular, inflammatory, and respiratory research
Featured evidence
Human randomized trial
Source check
October 4, 2026

Source: Intravenous aviptadil and remdesivir for treatment of COVID-19-associated hypoxaemic respiratory failure in the USA (TESICO): a randomised, placebo-controlled trial. · 2023 ↗

Biology & proposed mechanism

VIP signaling has several physiological effects. Biological plausibility should be separated from the measured response to a specific preparation in a particular disease.

Source: Intravenous aviptadil and remdesivir for treatment of COVID-19-associated hypoxaemic respiratory failure in the USA (TESICO): a randomised, placebo-controlled trial. · 2023 ↗

Research context & identity

The featured publication evaluates critical illness due to COVID-19. It does not resolve chronic gastrointestinal or immune conditions.

Source: Intravenous aviptadil and remdesivir for treatment of COVID-19-associated hypoxaemic respiratory failure in the USA (TESICO): a randomised, placebo-controlled trial. · 2023 ↗

What does the evidence show?

Selected published evidence, with the population, findings, and limits kept together. These original summaries draw on publication abstracts; they are not a systematic review.

Human randomized trial · 2023

TESICO aviptadil trial

What did this publication test, and what did it find?

Population / model
461 people with COVID-19-associated respiratory failure.
Study design
Randomized placebo-controlled trial with a 90-day ordinal clinical outcome.
Main finding
The primary outcome was not significantly better with aviptadil: odds ratio 1.11, 95% CI 0.80–1.55, P=0.54. Mortality was also not significantly different.
Limits & context
This negative comparison should remain visible. It neither proves benefit nor answers every proposed chronic use of VIP.

Source: Intravenous aviptadil and remdesivir for treatment of COVID-19-associated hypoxaemic respiratory failure in the USA (TESICO): a randomised, placebo-controlled trial. · 2023 ↗

Human randomized trial · 2022

Aviptadil · earlier respiratory-failure trial

How should the earlier favorable survival signal be read?

Population / model
196 patients with critical COVID-19 respiratory failure at ten U.S. hospitals.
Study design
Multicenter placebo comparison with a 60-day endpoint; participants randomized 2:1.
Main finding
The primary outcome—alive without respiratory failure—did not reach statistical significance: OR 1.6 (95% CI 0.86–3.11). A separate survival result favored aviptadil: OR 2.0 (95% CI 1.1–3.9).
How to read it
A favorable separate outcome does not turn a missed primary endpoint into a positive primary trial.
Limits & context
Secondary and subgroup signals need confirmation. Read this beside the later TESICO trial; differences in design and populations prevent selective use of favorable headlines. Neither trial establishes general wellness use of VIP.

Source: Aviptadil · earlier respiratory-failure trial · 2022 ↗

Read the original paper for methods, adverse events, funding, and conflicts of interest. Publisher access may require a subscription.

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New source discoveries

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Safety & precautions

Safety & what remains unknown

Critical-care treatment requires close monitoring. The lack of efficacy on the primary outcome must be weighed alongside treatment burdens and adverse events.

Source: Intravenous aviptadil and remdesivir for treatment of COVID-19-associated hypoxaemic respiratory failure in the USA (TESICO): a randomised, placebo-controlled trial. · 2023 ↗

Evidence boundaries

This negative comparison should remain visible. It neither proves benefit nor answers every proposed chronic use of VIP.

Source: Intravenous aviptadil and remdesivir for treatment of COVID-19-associated hypoxaemic respiratory failure in the USA (TESICO): a randomised, placebo-controlled trial. · 2023 ↗

This is not a complete list of contraindications, interactions, or adverse effects. Medicine labels apply to specific products and indications; research-use listings are not interchangeable with approved medicines.

What are people discussing?

No editorial transcript note has been reviewed for this profile yet. Below are the matching video records available for exploration; title and caption matches are not verified claims.

Watch the source discussions

9 matching video records · 3 with captions indexed.

Across the full library, 30 caption files are indexed from 20,199 inventoried videos. Most transcripts remain unreviewed. Select a thumbnail or timestamp to watch inside PepsRadar. Thumbnail images load from YouTube.

Browse all 9 matching videos →

Sources & supplier listings

Listings are grouped by the vendor’s stated identity. Blends and modified derivatives are labeled separately. Inclusion is not a quality assessment or an endorsement.

Named compound · not a verified clinical preparation

VIP (Vasoactive Intestinal Peptide) (5mg)

BioLongevity Labs · Vendor-labeled research use only

$74.97

Listed in stock · Snapshot 2026-10-04
Options may vary. Shipping and tax excluded.

View seller listing ↗

Affiliate link · PepsRadar may earn a commission from purchases through this link. Affiliate disclosure.

Named compound · not a verified clinical preparation

VIP (10 mg)

PSPeptides · Vendor-labeled research use only

$74.99

Listed in stock · Snapshot 2026-10-05
Options may vary. Shipping and tax excluded.

View seller listing ↗

Affiliate link · PepsRadar may earn a commission from purchases through this link. Affiliate disclosure.

Catalog checked 2026-10-04. Seller listings retain their stated intended use. Shops covered: BioLongevity Labs, BioLongevity Supplements, American Peptides, PSPeptides. This is not a market-wide comparison. Affiliate participation does not determine evidence or editorial coverage.

Questions worth asking

  • Did TESICO prove that VIP improves COVID-19 outcomes?
  • What material, population, and route were actually studied?
  • This negative comparison should remain visible. It neither proves benefit nor answers every proposed chronic use of VIP.
  • What adverse effects, uncertainty, and conflicts of interest does the original source report?

Frequently asked questions

Did TESICO prove that VIP improves COVID-19 outcomes?

No. The primary comparison and the mortality comparison did not reach statistical significance.

Source: Intravenous aviptadil and remdesivir for treatment of COVID-19-associated hypoxaemic respiratory failure in the USA (TESICO): a randomised, placebo-controlled trial. · 2023 ↗

Does the publication verify a supplier’s product?

No. The tested material and a commercial listing need separate identity and batch checks. A research-use disclaimer does not establish clinical suitability.

Source: Intravenous aviptadil and remdesivir for treatment of COVID-19-associated hypoxaemic respiratory failure in the USA (TESICO): a randomised, placebo-controlled trial. · 2023 ↗

References & editorial record

Source notes checked 2026-10-04. Original PepsRadar summaries. Not reviewed by a medical professional. Topic grouping is editorial navigation, not a treatment recommendation. Video notes specify which excerpts were reviewed; no full transcripts are published.

For research and education only. This page does not provide medical advice, diagnosis, or treatment. Research-only listings are not instructions for human use.

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