PNC-27 for Health & Longevity - Quick Reference Sheet

PNC-27 for Health & Longevity

Created on 10/05/2026 – Quick Reference based on Evidence Review created using AI4L / Opus 5.5 – Audit

PNC-27 is a laboratory-made protein fragment, never approved as a medicine, that is sold online and by clinics abroad as a cancer treatment. In laboratory dishes and mice it killed many cancer cells, but no study in people has tested whether it treats or prevents cancer. Products come from outside any regulated system, and real-world risks include contaminated products, possible serious bleeding and setting aside proven cancer care. (Full Review)

Protocol

No established human dose
No dose-finding study
No regimen has been tested in humans
Community-reported self-use regimens
0.2–0.3 mg three times weekly up to 1–5 mg daily
Subcutaneous; figures come from no trial
Routes in commerce
Intravenous, inhaled, suppositories
Intravenous and nebulized solutions; rectal and vaginal suppositories
Time to effect
Mice
Weeks of dosing
Effects emerged over weeks in leukemic mice
Cultured leukemia cells
About 4 hours
Cell death in laboratory culture
People
Unknown
Time to any effect in people is unknown

Benefits

Contraindications
  • People with curable cancers who would use it instead of standard treatment
  • Active or recent gastrointestinal bleeding, or tumors invading the stomach, bowel or major blood vessels (theoretical)
  • Weakened immune systems, pregnant women, older adults and young children
  • Breastfeeding women (no safety data)
  • Healthy adults seeking cancer prevention (no data on benefit)
Key Interactions
  • Anticoagulants and antiplatelet drugs (warfarin, apixaban, rivaroxaban, clopidogrel, prasugrel): caution (theoretical)
  • Corticosteroids (prednisone, dexamethasone): caution (theoretical)
  • Chemotherapy (paclitaxel): monitor (theoretical in humans)
  • Proteasome inhibitors (bortezomib, carfilzomib): caution (theoretical)
  • MDM2 inhibitors (idasanutlin, navtemadlin): caution (theoretical)
  • NSAIDs (aspirin, ibuprofen, naproxen): caution (theoretical)
  • Ketone esters and ketone salts: monitor (theoretical in humans)
  • Fish oil, vitamin E, ginkgo, high-dose curcumin: caution (theoretical)
  • Surgery and radiotherapy: monitor (theoretical)

Risk & Side Effects

  • High:
  • Medium:
  • Low: Severe gastrointestinal bleeding; forgoing or delaying effective cancer treatment
  • Speculative: Infection from contaminated products; damage to normal cells; tumor lysis syndrome; immune or allergic reactions

Monitoring

Marker Target Why
Hemoglobin Men 13.2–16.6 g/dL; women 11.6–15.0 g/dL Safety check: a fall signals bleeding
Platelets 150–450 ×10⁹/L Safety check: low counts raise bleeding risk
INR 0.8–1.1 Safety check: prolonged clotting raises bleeding risk
Potassium 3.5–5.0 mmol/L Safety check: a rise signals tumor lysis
Phosphate 2.5–4.5 mg/dL Safety check: a rise signals tumor lysis
Uric acid 3.5–7.2 mg/dL Safety check: a rise signals tumor lysis
Calcium 8.6–10.3 mg/dL Safety check: a fall signals tumor lysis
Creatinine Men 0.74–1.35 mg/dL; women 0.59–1.04 mg/dL Safety check: kidney injury from tumor lysis
LDH 140–280 U/L Expected to change: rises as cells burst; also a tumor lysis safety check
Cancer-specific tumor marker (e.g., CA-125, CEA, PSA) No established target; change from own baseline Expected to change if the tumor responds

Cadence: Baseline before any use; electrolytes, uric acid and creatinine at 24–72 hours after the first dose and at 1 week; blood counts and chemistries every 2–4 weeks while in use; tumor markers and imaging typically every 2–3 months.

Qualitative Assessment

  • Signs of bleeding: vomiting blood, black or bloody stools, unusual bruising
  • Fever, chills or redness at the injection or infusion site, suggesting infection
  • Urine output, swelling and muscle cramps, which can reflect tumor lysis
  • Energy, appetite and weight
  • Tumor-related symptoms such as pain or breathlessness