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Specimen Atlas of Research Peptides81 plates · MIT
Side-by-side · Research reference

PancragenvsTesofensine

Side-by-side comparison across mechanism, dosage, evidence, side effects, administration, and stack synergies. Citations on every claim where available.

AAnimal-StrongHUMAN-REVIEWED23/39 cited
BPhase 3AUTO-DRAFTED10/40 cited
Pancragen
Bioregulatory Tetrapeptide · Khavinson School
50 μgPrimate doseGoncharova 2014
10 daysTreatment cycleGoncharova 2015
3+ weeksEffect persistenceGoncharova 2014
IM · 10-day cycleGoncharova 2014
Tesofensine
SNDRI · Phase 3 obesity candidate
0.25–0.5 mgDaily doseAstrup 2008
9.2 kgWeight ↓ (24 wk)Astrup 2008
Phase 3Evidence levelAstrup 2008
Oral · Once daily morning

01Mechanism of Action

Parameter
Pancragen
Tesofensine
Primary target
Pancreatic acinar and islet cell differentiation pathwaysKhavinson 2013
Serotonin / norepinephrine / dopamine transporters (SERT / NET / DAT)Astrup 2008
Pathway
Transcription factor activation → Pdx1/Pax6/Pax4/Ptf1a/Foxa2/NKx2.2 upregulation → Cell differentiationKhavinson 2013
Triple monoamine reuptake inhibition → ↑synaptic 5-HT, NE, DA → appetite suppression + thermogenesisAstrup 2008
Downstream effect
Enhanced pancreatic beta-cell function, normalized insulin/C-peptide dynamics, improved glucose clearanceGoncharova 2014
Strong appetite suppression, mild thermogenic effect, weight lossAstrup 2008
Feedback intact?
Yes — preserves physiological glucose-insulin response
Origin
Synthetic tetrapeptide derived from pancreatic tissue extracts (Khavinson bioregulator methodology)
Small molecule developed by NeuroSearch (Denmark) for CNS indications, repurposed for obesityAstrup 2008
Antibody development

02Dosage Protocols

Parameter
Pancragen
Tesofensine
Primate dose (rhesus macaque)
50 μg / animal / dayGoncharova 2014
20–25-year-old females, 10-day IM protocol.
Effective concentration (in vitro)
0.05 ng/mLZakutskiĭ 2006
Organotypic tissue culture, both young and aged rat explants.
Route
IntramuscularGoncharova 2015
Frequency
Once daily for 10 daysGoncharova 2014
Once daily, morning
Treatment cycle
10-day course, effects persist 3+ weeks post-withdrawalGoncharova 2014
Evidence basis
Non-human primate RCT, in vitro cell cultureGoncharova 2015Khavinson 2013
Phase 2b + ongoing Phase 3Astrup 2008
Diabetes model
STZ-induced diabetes (rat)
Evaluated via metabolic markers characterizing apoptosis.
Standard dose
0.25–0.5 mg / dayAstrup 2008
Lower / starter dose
0.125 mg / day
Duration
24 weeks per studied cycle
Form
Oral capsule
Timing
Morning to avoid sleep disruption
Half-life
~9 days (very long)

04Side Effects & Safety

Parameter
Pancragen
Tesofensine
Reported adverse events
None documented in primate studies
Tolerability
Well-tolerated in aged rhesus monkeys (n=9)Goncharova 2015
Human safety data
No published human trials; clinical use limited to Russian gerontology protocols
Heart rate / BP
Dose-dependent ↑ HR + BPAstrup 2008
Insomnia
Dose-related; mitigate with morning timing
Dry mouth
Common
Nausea
Common
Mood changes
Anxiety / agitation possible
Cardiovascular events
Phase 3 trial monitoring; not yet FDA-cleared
Pregnancy / OB
Contraindicated
Absolute Contraindications
Pancragen
Tesofensine
  • ·Pregnancy / breastfeeding
  • ·Severe cardiovascular disease
  • ·Concurrent MAOI use
Relative Contraindications
Pancragen
  • ·Active pancreatic malignancy (proliferation marker upregulation)
Tesofensine
  • ·Hypertension
  • ·Anxiety disorder
  • ·Insomnia

05Administration Protocol

Parameter
Pancragen
Tesofensine
1. Reconstitution
Lyophilised tetrapeptide reconstituted in sterile saline or water per manufacturer protocol. Concentration not specified in literature.
Oral capsule (investigational; not commercial).
2. Route
Intramuscular injection. Primate studies used daily IM dosing for 10 consecutive days.Goncharova 2015
Swallow whole with water, morning only.
3. Timing
No specific timing constraints documented. Administered once daily in primate protocols.
Morning to mitigate insomnia. Do not dose evening.
4. Cycle structure
10-day treatment course. Restorative effects on pancreatic function persist for at least 3 weeks post-discontinuation.Goncharova 2014
Room temp ≤25 °C, dry place.
5. Caveat
Monitor BP + HR + mood. Avoid stimulants + MAOIs.