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Peptide

Angiotensin II

Angiotensin II is the endogenous vasoconstrictor peptide now available as a synthetic IV formulation (Giapreza). FDA-approved 2017 for vasodilatory/septic shock refractory to standard vasopressors. A-GRADE evidence from ATHOS-3 (n=321): 70% achieved MAP response vs 23% placebo (P<0.001). Post-hoc analysis: AKI patients on RRT showed 53% vs 30% survival at day 28. SAFETY CONCERN: Increased thromboembolism (13% vs 5%), requires DVT prophylaxis. No mortality benefit in main analysis - approved for hemodynamic response, not survival. PRESCRIPTION ONLY - ICU setting.

Research notice. This page is for education and research. Peptides may not be FDA-approved for human use and may only be legally available for research. Talk to a qualified clinician before considering any peptide.

Best evidence
Grade A
Conditions studied
2
Outcomes
12
Graded outcomes
4134

Evidence by condition

  • Strong
  • Moderate
  • Limited
  • Very limited

2 conditions, plus general outcomes

Septic Shock: outcomes studied for Angiotensin II
GradeOutcomeEffectSizeStudiesPeopleStudies list
Thromboembolic Events

SAFETY CONCERN: ATHOS-3: 13% vs 5% thromboembolic events (DVT, arterial). Major imbalance in DVT. Concurrent DVT prophylaxis required. Systematic review (n=1,461): Similar rates in larger observational data (8.8% vs 9.4% VTE).

Worsens (the measure goes down)Moderate effect45 studies
Mean Arterial Pressure Response

ATHOS-3 (n=321): 70% achieved MAP ≥75 mmHg or ≥10 mmHg increase at 3h vs 23% placebo (P<0.001). 45% absolute increase in responders. Effective in catecholamine-resistant shock.

Improves (the measure goes up)Large effect44 studies

Studies that measured mean arterial pressure response

and 34 more in the citations list

Vasopressor Dose Reduction

ATHOS-3: Significant reduction in background vasopressor requirements. Catecholamine-sparing effect allows reduction of norepinephrine doses. May reduce catecholamine toxicity.

Improves (the measure goes down)Moderate effect44 studies

Studies that measured vasopressor dose reduction

and 34 more in the citations list

28-Day Mortality

ATHOS-3: No significant mortality difference (46% vs 54%, P=0.12). Study not powered for mortality. Post-hoc AKI/RRT subgroup: 53% vs 30% survival (P=0.012). Mortality benefit uncertain.

NoneNo effect44 studies

Studies that measured 28-day mortality

and 34 more in the citations list

General

General: outcomes studied for Angiotensin II
GradeOutcomeEffectSizeStudiesPeopleStudies list
Cardiac Protection

5 human trials support this finding. Human clinical trial data available.

Improves (the measure goes up)Small effect6 studies

Studies that measured cardiac protection

Kidney Function

10 preclinical studies support this finding. Primarily preclinical evidence.

Improves (the measure goes up)Moderate effect11 studies

Studies that measured kidney function

and 1 more in the citations list

Blood Pressure

6 preclinical studies support this finding. Primarily preclinical evidence.

Improves (the measure goes down)Small effect7 studies

Studies that measured blood pressure

Anti-Cancer Activity

2 preclinical studies support this finding. Primarily preclinical evidence.

Improves (the measure goes up)Small effect3 studies

Studies that measured anti-cancer activity

Muscle Mass/Function

2 preclinical studies support this finding. Primarily preclinical evidence.

Improves (the measure goes up)Small effect3 studies

Studies that measured muscle mass/function

Cancer Cell Apoptosis

2 preclinical studies support this finding. Primarily preclinical evidence.

Improves (the measure goes up)Small effect3 studies
Anti-Inflammatory Activity

2 preclinical studies support this finding. Primarily preclinical evidence.

Improves (the measure goes up)Small effect3 studies

Acute Kidney Injury: outcomes studied for Angiotensin II
GradeOutcomeEffectSizeStudiesPeopleStudies list
Renal Recovery in AKI

Improvement

Improves (the measure goes up)2 studies

Key findings

  • Thromboembolic EventsSeptic ShockWorsens (the measure goes down)
  • Mean Arterial Pressure ResponseSeptic ShockImproves (the measure goes up)
  • Vasopressor Dose ReductionSeptic ShockImproves (the measure goes down)

Safety notes in the studies

  • May reduce catecholamine toxicity.

Studies cited

30 studies from PubMed

  1. Angiotensin-II and Thromboembolic Events: A Systematic ReviewPharmacotherapy, 2024 · PMID 39637259
  2. Angiotensin II Is Involved in MLKL Activation During the Development of Heart Failure Following Myocardial Infarction in Rats.Biological & pharmaceutical bulletin, 2024 · PMID 38583954
  3. The Role of Local Angiotensin II/Angiotensin Type 1-receptor Mechanisms in Adipose Tissue Dysfunction to Promote Pancreatic Cancer.Current cancer drug targets, 2024 · PMID 38347780
  4. Roles of autophagy in angiotensin II-induced cardiomyocyte apoptosis.Clinical and experimental pharmacology & physiology, 2022 · PMID 36059129
  5. Angiotensin II (Giapreza): A Distinct Mechanism for the Treatment of Vasodilatory ShockCardiol Rev, 2019 · PMID 30601161
  6. Vasodilatory shock in the ICU and the role of angiotensin II.Current opinion in critical care, 2018 · PMID 29877879
  7. Angiotensin II for the Treatment of Vasodilatory ShockN Engl J Med, 2017 · PMID 28528561
  8. Angiotensin II type 1a receptor-deficient mice develop angiotensin II-induced oxidative stress and DNA damage without blood pressure increase.American journal of physiology. Renal physiology, 2017 · PMID 28877878
  9. Angiotensin II and skeletal muscle abnormalities.Experimental physiology, 2017 · PMID 28568964
  10. Angiotensin (1-7) receptor antagonism equalizes angiotensin II-induced hypertension in male and female spontaneously hypertensive rats.Hypertension (Dallas, Tex. : 1979), 2010 · PMID 20713916
  11. Angiotensin II-nitric oxide interaction in the kidney.Current opinion in nephrology and hypertension, 2007 · PMID 17143071
  12. Angiotensin II type 2 receptor decreases ischemia reperfusion induced fluid leak.The Journal of surgical research, 2007 · PMID 17291529
  13. Angiotensin II and renal tubular ion transport.TheScientificWorldJournal, 2005 · PMID 16142301
  14. Angiotensin II, angiotensin II antagonists and spironolactone and their modulation of cardiac repolarization.Trends in pharmacological sciences, 2005 · PMID 15749161
  15. Angiotensin-II behaves as an endogenous pro-inflammatory molecule.The Journal of the Association of Physicians of India, 2005 · PMID 16124358
  16. Protective effects of angiotensin II interruption: evidence for antiinflammatory actions.Pharmacotherapy, 2005 · PMID 16164395
  17. Cardiac angiotensin II: an intracrine hormone?American journal of hypertension, 2002 · PMID 12460709
  18. Angiotensin II as a mediator of renal tubular transport.Contributions to nephrology, 2001 · PMID 11705291
  19. Angiotensin II induces phenotype-dependent apoptosis in vascular smooth muscle cells.Hypertension (Dallas, Tex. : 1979), 2001 · PMID 11751706
  20. Angiotensin II receptor blockers: review of the binding characteristics.The American journal of cardiology, 1999 · PMID 10588088
  21. Angiotensin II receptors in the kidney.Kidney & blood pressure research, 1998 · PMID 9762845
  22. Biology and functions of renal receptors for angiotensin II and its active fragments.Advances in nephrology from the Necker Hospital, 1998 · PMID 9889993
  23. Angiotensin II receptors on colorectal carcinoma cells.International journal of molecular medicine, 1998 · PMID 9858658
  24. Regional angiotensin II production in essential hypertension and renal artery stenosis.Hypertension (Dallas, Tex. : 1979), 1993 · PMID 8428780
  25. The intrarenal renin-angiotensin system.Current opinion in nephrology and hypertension, 1993 · PMID 7922165
  26. Angiotensin II receptor subtypes in the kidney.Journal of the American Society of Nephrology : JASN, 1993 · PMID 8318680
  27. Angiotensin II is mitogenic in neonatal rat cardiac fibroblasts.Circulation research, 1993 · PMID 8495553
  28. Angiotensin II and renal hypertension in dog, rat and man: effect of converting enzyme inhibition.Clinical and experimental hypertension, 1980 · PMID 6253241
  29. [Angiotensin II analogue and essential hypertension].Nihon rinsho. Japanese journal of clinical medicine, 1979 · PMID 392137
  30. Angiotensin II in arterial and renal venous plasma and renal lymph in the dog.The Journal of clinical investigation, 1971 · PMID 4322664