Aviptadil (VIP)

Also known as: vasoactive intestinal peptide · Zyesami · RLF-100

Not FDA-approved

Last verified: October 30, 2026

At a glance

FDA approval Not FDA-approved No record in Drugs@FDA
Randomized controlled trials 60 of 218 publications on PubMed
Registered clinical trials 23 3 active
Adverse event reports 26 25 classified as serious
  • Aviptadil (VIP) is not an FDA-approved drug: Drugs@FDA has no record of it.
  • PubMed lists 218 publications mentioning it, including 60 randomized controlled trials and 48 animal-only studies.
  • ClinicalTrials.gov lists 23 registered studies testing it (3 active).
  • FDA's adverse event system (FAERS) holds 26 reports mentioning it; 25 classified as serious. Reports do not prove causation.

Research topics

  • Substance P 21
  • Administration, Inhalation 18
  • Asthma 15
  • Phentolamine 15
  • Somatostatin 15
  • Vasodilator Agents 15
  • Neuropeptides 14
  • Calcitonin Gene-Related Peptide 13
  • Drug Combinations 13
  • Lung 13

Most frequent MeSH subject headings in the latest PubMed records (English, as indexed).

Regulatory status

Drugs@FDA applications

No application found in Drugs@FDA, FDA's database of approved drugs.

Source: Drugs@FDA (openFDA) · verified October 30, 2026 · API query

FDA compounding safety list

Not on FDA's list of bulk drug substances that may present significant safety risks in compounding.

Source: FDA.gov — Category 2 bulk drug substances · verified October 30, 2026

Removal of a substance from a regulatory list does not mean it has been approved. A "research use only" label does not make a product safe or legal for human use.

Scientific publications

  • All publications 218
  • Human (MeSH) 153
  • Animal only 48
  • Clinical trials 112
  • Randomized controlled trials 60
  • Systematic reviews & meta-analyses 1
  • Case reports 6
  • Retracted 0

Counts are PubMed records that mention the peptide in the title or abstract. Categories overlap, and a mention is not the same as testing the peptide as a treatment. Each number opens the exact PubMed search. Effects seen in laboratory or animal studies may not occur in humans. A registered clinical trial does not show that a substance is effective or safe.

Latest publications

Source: PubMed (NCBI) · verified October 30, 2026

Clinical trials

Registered
23
Active
3
With posted results
4

Conditions studied

  • Covid19 4
  • Migraine 3
  • ARDS 3
  • SARS-CoV 2 2
  • COVID 2
  • ALI 2
  • Acute Lung Injury/Acute Respiratory Distress Syndrome (ARDS) 2
  • Dyspnea 2
  • Corona Virus Infection 2
  • Critical COVID-19 With Respiratory Failure 2
  • Pulmonary Arterial Hypertension 2
  • COVID-19 1
Study Status Phase Start
Biological Profiles of Neuropeptides, Neurotrophins and miRNA in Migraine
NCT07832032 Nordlandssykehuset HF
Not yet recruiting — September 17, 2026
I-SPY COVID-19 TRIAL: An Adaptive Platform Trial for Critically Ill Patients
NCT04488081 QuantumLeap Healthcare Collaborative
Active, not recruiting Phase 2 July 31, 2020
Investigation Into Detection of Prostate Cancer Using Voided Urine (Prostate VPAC)
NCT04788277 Thomas Jefferson University
Active, not recruiting — February 26, 2020
Inhaled ZYESAMI (Aviptadil Acetate) for Treatment of Severe COVID-19
NCT05137795 APR Applied Pharma Research s.a.
Withdrawn Phase 3 December 15, 2021
Inhaled Aviptadil for the Treatment of COVID-19 in Patients at High Risk for ARDS
NCT04536350 Prof. Dr. Jörg Leuppi
Terminated Phase 2 May 18, 2021
Aviptadil for Severely Ill Inpatients With COVID-19 (An ACTIV-3b/TESICO Treatment Trial)
NCT06729606 National Institute of Allergy and Infectious Diseases (NIAID) Results posted
Completed Phase 3 April 20, 2021
ACTIV-3b: Therapeutics for Severely Ill Inpatients With COVID-19
NCT04843761 National Institute of Allergy and Infectious Diseases (NIAID) Results posted
Completed Phase 3 April 20, 2021
A Clinical Study Evaluating Inhaled Aviptadil on COVID-19
NCT04844580 Centurion Pharma
Completed Phase 2 March 10, 2021
Inhaled ZYESAMI™ (Aviptadil Acetate) for the Treatment of Severe COVID-19
NCT04360096 APR Applied Pharma Research s.a.
Terminated Phase 2, Phase 3 February 15, 2021
Pemziviptadil (PB1046), a Long-acting, Sustained Release Human VIP Analogue, Intended to Provide Clinical Improvement to Hospitalized COVID-19 Patients at High Risk for Rapid Clinical Deterioration and Acute Respiratory Distress Syndrome (ARDS).
NCT04433546 PhaseBio Pharmaceuticals Inc.
Terminated Phase 2 July 15, 2020
Show 13 more studies
Study Status Phase Start
The Effects of a Long-lasting Infusion of Vasoactive Intestinal Peptide (VIP) in Episodic Migraine Patients
NCT04260035 Danish Headache Center
Completed N/A May 19, 2020
Intravenous Aviptadil for Critical COVID-19 With Respiratory Failure
NCT04311697 APR Applied Pharma Research s.a. Results posted
Completed Phase 2, Phase 3 May 15, 2020
The Effects of a Long-lasting Infusion of Vasoactive Intestinal Peptide (VIP) on Headache, Cranial Hemodynamic and Autonomic Symptoms in Healthy Volunteers
NCT03989817 Danish Headache Center
Completed N/A June 14, 2019
Yield of Diagnostic Tests and Effects of Crofelemer for Chronic Idiopathic Diarrhea In Non-HIV Patients
NCT03898856 The University of Texas Health Science Center, Houston Results posted
Completed Phase 4 April 1, 2019
Phase 2 Study to Assess Safety, Tolerability and Efficacy of Once Weekly SC Pemziviptadil (PB1046) in Subjects With Symptomatic PAH
NCT03556020 PhaseBio Pharmaceuticals Inc.
Terminated Phase 2 July 15, 2018
A Study to Assess the Safety, Tolerability, and Hemodynamic Response of PB1046 in Subjects With PAH
NCT03315507 PhaseBio Pharmaceuticals Inc.
Completed Phase 1 October 20, 2017
Plastic Bronchitis and Protein Losing Enteropathy in Children With Single Ventricle Physiology
NCT01563757 Medical College of Wisconsin
Completed — Mar 2012
Effect of PACAP38/VIP on Migraineurs Measured by Magnetic Resonance
NCT01471990 Glostrup University Hospital, Copenhagen
Completed N/A May 2011
Hemodynamic and Headache-Inducing Effect of Intravenous Vasoactive Intestinal Peptide in Migraineurs
NCT00272896 Danish Headache Center
Completed N/A Oct 2004
Experimental Headache Induced by Vasoactive Intestinal Polypeptide
NCT00255320 Danish Headache Center
Completed N/A Dec 2003
Vasoactive Intestinal Peptide in COPD
NCT00464932 Medical University of Vienna
Completed — Jun 2003
Phase I Study of Vasoactive Intestinal Peptide in Patients With Acute Respiratory Distress Syndrome and Sepsis
NCT00004494 Stony Brook University
Completed Phase 1 Sep 1998
ZYESAMI (Aviptadil) Intermediate Population Expanded Access Protocol (SAMICARE)
NCT04453839 APR Applied Pharma Research s.a.
No longer available — —

All 23 studies on ClinicalTrials.gov ↗

Source: ClinicalTrials.gov · verified October 30, 2026

Adverse event reports

Reports
26
Serious
25
With death outcome
3

Most reported reactions

  • Acute abdomen 6
  • Euglycaemic diabetic ketoacidosis 5
  • Syncope 5
  • Vomiting 5
  • Flushing 3
  • Off label use 3
  • Pain 3
  • Abortion spontaneous 2
  • Maternal exposure during pregnancy 2
  • Acute kidney injury 1
  • Covid-19 pneumonia 1
  • Deep vein thrombosis 1

Adverse event reports do not prove that the substance caused these effects. Side effects not listed here may still occur. Reaction terms are MedDRA terms as reported to FAERS.

Source: FDA FAERS (FAERS data as of July 30, 2026) · verified October 30, 2026 · API query

Change history

No changes since monitoring began on October 30, 2026.