Side-by-side · Research reference
CagrilintidevsTesamorelin
Side-by-side comparison across mechanism, dosage, evidence, side effects, administration, and stack synergies. Citations on every claim where available.
APhase 3HUMAN-REVIEWED35/64 cited
BFDA-ApprovedFlagship26/68 cited
Tesamorelin
GHRH Analogue · FDA-Approved
SQ · Abdomen · Once Daily
01Mechanism of Action
Parameter
Cagrilintide
Tesamorelin
Primary target
Amylin receptor (AMYR) and calcitonin receptor (CTR) heterodimeric complexesBailey 2026
Hypothalamic GHRH receptorsEGRIFTA® (tesamorelin for inje 2010
Pathway
AMYR/CTR agonism → Central satiety signaling → Reduced food intake, delayed gastric emptying, suppressed glucagonBailey 2026
GHRH → Pituitary GH release → Liver IGF-1 synthesisFalutz 2007
Downstream effect
Central satiety induction, prandial glucagon suppression, reduced caloric intake, weight loss, improved glycemic controlBailey 2026Yamauchi 2026
Increased GH pulsatility, elevated IGF-1, lipolysis of visceral adipose tissueFalutz 2010
Feedback intact?
Yes — acts via physiological amylin pathways
Yes — physiological pulsatility preserved
Origin
Second-generation non-aggregating long-acting amylin analogue designed for once-weekly dosingBailey 2026
Synthetic 44-AA GHRH analogue with trans-3-hexenoic-acid modification for stabilityEGRIFTA® (tesamorelin for inje 2010
02Dosage Protocols
Parameter
Cagrilintide
Tesamorelin
Standard dose (combination)
Cagrilintide 2.4 mg + Semaglutide 2.4 mg (CagriSema)Yamauchi 2026
Phase 3 REDEFINE 5 trial dosing.
—
Monotherapy dosing
Dose-dependent, under investigation
Monotherapy trials reported in meta-analysis.
—
Frequency
Once weekly (subcutaneous)Bailey 2026
Long-acting formulation.
Once daily (morning or pre-sleep)
Aligns with natural GH pulse.
Evidence basis
Phase 3 RCT (REDEFINE 5), meta-analysis of 3 RCTs (n=3545)Yamauchi 2026Ahmed 2026
RCT / FDA-approvedFalutz 2007Falutz 2010
Lower / starter dose
—
1 mg / day
1 mg still produces significant IGF-1 elevation.
Reconstitution
—
Sterile water per labeling
Preserved at 2–8 °C after reconstitution.
Timing
—
Empty stomach, pre-sleep preferred
03Metabolic / Fat Loss Evidence
Parameter
Cagrilintide
Tesamorelin
Weight loss vs semaglutide
7.47% greater percentage weight lossAhmed 2026
CagriSema combination vs semaglutide monotherapy (meta-analysis).
—
Absolute weight change
Significantly greater absolute weight reductionAhmed 2026
Mean difference favoring combination therapy.
—
Glycemic benefit
Reduced fasting glucose and HbA1cAhmed 2026
Synergistic effect with semaglutide in combination.
—
Body composition
Predominant fat loss with weight reduction
—
Mitochondrial function
In vitro effects on skeletal muscle mitochondria under metabolic stress conditionsOld 2026
C2C12 myotube study; clinical relevance under investigation.
—
Key publications
REDEFINE 5 (Yamauchi 2026) · Ahmed meta-analysis 2026 · Bailey review 2026Yamauchi 2026Ahmed 2026Bailey 2026
—
Primary fat target
—
Visceral adipose tissue (VAT) — abdominal
Effect on lean mass
—
Modest lean mass preservation / slight increase
Glucose metabolism
—
Generally neutral; 4.5% HbA1c elevation riskStanley 2014EGRIFTA® (tesamorelin for inje 2010
Effect reversibility
—
VAT returns within months of stopping
Key publication
—
Falutz et al. NEJM 2007 · Falutz JCEM 2010 · FDA approval 2010
04Side Effects & Safety
Parameter
Cagrilintide
Tesamorelin
Gastrointestinal
Nausea, diarrhea (common with incretin-based therapies)Pardali 2026
Dietary management and nutritional monitoring recommended.
—
Injection site reactions
Local reactions possible with subcutaneous administration
—
Safety profile
Generally consistent with incretin-based therapies
Phase 3 and meta-analysis safety data.
—
Tolerability
Tolerability considerations similar to GLP-1RAs
—
Muscle preservation
Lean mass considerations during weight loss
In vitro mitochondrial effects observed; clinical impact under investigation.
—
Injection site reaction
—
Erythema, pruritus, redness (common)
Fluid retention / Edema
—
Peripheral edema, arthralgia, carpal tunnel (GH-axis effect)
Glucose intolerance
—
HbA1c ↑ in 4.5% vs 1.3% placebo; HbA1c ≥6.5% hazard OR 3.3EGRIFTA® (tesamorelin for inje 2010
IGF-1 elevation
—
Dose-dependent; supraphysiological levels = discontinue
Cancer risk
—
Contraindicated in active malignancy (GH/IGF-1 axis); theoretical tumour growth riskEGRIFTA® (tesamorelin for inje 2010
Antibody formation
—
~50% at 26 weeks; non-neutralising in most; rare hypersensitivity (<1%)Sévigny 2008
GI symptoms
—
Nausea, diarrhea (mild, transient)
Absolute Contraindications
Cagrilintide
- ·Hypersensitivity to cagrilintide or formulation components
Tesamorelin
- ·Active malignancy or history of treated cancer
- ·Pregnancy
- ·Hypersensitivity to tesamorelin or mannitol
- ·Disruption of hypothalamic-pituitary axis (trauma, tumour, radiation)
Relative Contraindications
Cagrilintide
- ·Severe gastrointestinal disease
- ·History of pancreatitis (incretin-based therapy consideration)
Tesamorelin
- ·Untreated diabetes (monitor HbA1c)
- ·Severe carpal tunnel syndrome
- ·Acute critical illness
05Administration Protocol
Parameter
Cagrilintide
Tesamorelin
1. Dosing frequency
Once-weekly subcutaneous injection. Long-acting formulation designed for weekly administration schedule.Bailey 2026
Add 2.1 mL sterile water to 2 mg lyophilised vial. Roll gently — do not shake. Solution should be clear.
2. Combination form
Co-formulated with semaglutide as CagriSema for single weekly injection combining amylin and GLP-1 receptor agonism.Yamauchi 2026Bailey 2026
Subcutaneous — abdomen preferred. Rotate sites (avoid same spot within 2 cm). Avoid navel and waistband area.
3. Injection site
Subcutaneous — typically abdomen, thigh, or upper arm. Rotate injection sites weekly to minimize local reactions.
Once daily. Preferred: evening, 2–3 hrs post-meal, before sleep — aligns with natural GH secretion pulse.
4. Storage
Refrigerate 2–8°C. Follow product-specific storage instructions for pre-filled pens or vials. Protect from light.
Lyophilised: room temp, light-protected. Reconstituted: refrigerate 2–8 °C, use within 21 days.
5. Dietary considerations
Nutritional monitoring recommended during treatment. Dietary management strategies important for tolerability and outcomes.Pardali 2026
27–31G, 4–8 mm insulin syringe. Pinch skin, 45° angle for lean individuals.
06Stack Synergy
Cagrilintide
+ Semaglutide
StrongCagrilintide (amylin receptor agonist) and semaglutide (GLP-1 receptor agonist) act on distinct receptor systems to produce synergistic weight loss through complementary mechanisms — central satiety via amylin pathways plus incretin-mediated glucose control and appetite suppression via GLP-1. Co-formulated as CagriSema, this combination demonstrates 7.5% greater weight loss versus semaglutide monotherapy in Phase 3 trials with additional benefits on glycemic control and lipid parameters.
- CagriSema
- Cagrilintide 2.4 mg + Semaglutide 2.4 mg
- Frequency
- Once weekly subcutaneous
- Duration
- 26–52 weeks (trial data)
- Primary benefit
- Enhanced weight loss, improved glycemic control, multi-pathway metabolic modulation
Tesamorelin
+ Ipamorelin
StrongTesamorelin (GHRH analogue) and ipamorelin (GHRP / ghrelin mimetic) act on two distinct receptor systems to amplify GH release synergistically — GHRH receptor + ghrelin receptor. This dual-axis stimulation produces a more robust, sustained GH pulse than either alone while maintaining physiological pulsatility. Ipamorelin is highly selective with minimal cortisol or prolactin elevation, making it the preferred GHRP pairing.
- Tesamorelin
- 2 mg SQ · evening
- Ipamorelin
- 200–300 mcg SQ · same injection
- Frequency
- Once daily, pre-sleep
- Primary benefit
- Maximal GH pulsatility, fat loss, recovery, sleep quality