Side-by-side · Research reference

BronchogenvsCJC-1295 (no DAC)

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

AAnimal-StrongHUMAN-REVIEWED16/35 cited

BPhase 1HUMAN-REVIEWED15/51 cited

Bronchogen

Tetrapeptide Bioregulator · Khavinson-School

0.05 ng/mLEffective concentrationZakutskiĭ 2006

60 daysCOPD model durationTitova 2017

30 daysTreatment courseKuzubova 2015

Research models: tissue culture / parenteral

CJC-1295 (no DAC)

Short-acting GHRH · No DAC variant

100 mcgPer doseTeichman 2006

~30 minHalf-lifeIonescu 2006

Phase 1Evidence levelTeichman 2006 Sigalos 2018

SQ · Pre-sleep · 1–2×/day

01Mechanism of Action

Parameter

Bronchogen

CJC-1295 (no DAC)

Primary target

Bronchial epithelial cellsKuzubova 2015

Pituitary GHRH receptorTeichman 2006

Pathway

Tissue-specific bioregulation → epithelial cell differentiation → ciliated cell restoration

GHRH-R → Gαs → cAMP → PKA → GH vesicle exocytosisTeichman 2006

Downstream effect

Reversal of goblet cell hyperplasia, squamous metaplasia elimination, restoration of ciliated epithelium, normalized secretory IgA and surfactant protein B productionKuzubova 2015 Titova 2017

Pulsatile GH release matching physiological pattern; subsequent IGF-1 elevationIonescu 2006

Feedback intact?

—

Yes — short pulse preserves somatostatin negative feedbackIonescu 2006

Origin

Synthetic tetrapeptide (Ala-Glu-Asp-Leu) from Khavinson bioregulator framework

Modified human GRF 1-29 with four substitutions (D-Ala²/Gln⁸/Ala¹⁵/Leu²⁷) for protease resistanceTeichman 2006

Antibody development

—

Not reported in short-term studies

02Dosage Protocols

Parameter

Bronchogen

CJC-1295 (no DAC)

Effective concentration (culture)

0.05 ng/mLZakutskiĭ 2006

Demonstrated in organotypic tissue culture of bronchial explants.

—

Treatment duration (animal)

1 month (30 days)Kuzubova 2015 Titova 2017

Course duration in rat COPD models.

—

Evidence basis

Animal models (rat) / organotypic cultureTitova 2017 Kuzubova 2015 Zakutskiĭ 2006

No human clinical trials reported in available literature.

Phase 1 (CJC-1295 with DAC); analog dataTeichman 2006 Ionescu 2006

No-DAC variant is less studied directly; PK extrapolated from native GHRH.

Model system

NO₂-induced COPD (60-day intermittent exposure)Titova 2017

—

Tissue specificity

Selective for bronchopulmonary tissue

Part of Khavinson organ-specific bioregulator series.

—

Standard dose

—

100 mcg per injectionTeichman 2006

Often paired with ipamorelin in same syringe.

Frequency

—

1–2× daily (pre-sleep ± morning)

Lower / starter dose

—

50 mcg per dose

Duration

—

8–12 weeks on / 4 off (anecdotal)

Reconstitution

—

Bacteriostatic water

Timing

—

Pre-sleep + fasted preferred

Half-life

—

~30 minIonescu 2006

Short pulse vs CJC-1295-DAC (~8 days). Choose no-DAC for pulsatile, DAC for sustained.

04Side Effects & Safety

Parameter

Bronchogen

CJC-1295 (no DAC)

Animal safety profile

No adverse effects reported in published rat studies

Limited safety data; only animal models available.

—

Human data

Absent — no clinical trials in humans reported

—

Long-term effects

Unknown — maximum study duration 30 days in animals

—

Injection site reaction

—

Erythema, mild pruritus

Flushing / headache

—

Common transient effect

Cortisol elevation

—

Minimal at standard doses

Prolactin elevation

—

Minimal

Glucose intolerance

—

Possible at high cumulative doses

IGF-1 elevation

—

Dose-dependent; monitor with chronic use

Cancer risk

—

Contraindicated in active malignancy (GH/IGF-1 axis)

Pregnancy / OB

—

Avoid

Absolute Contraindications

Bronchogen

—

CJC-1295 (no DAC)

·Active malignancy or cancer history
·Pregnancy / breastfeeding
·Disrupted hypothalamic-pituitary axis

Relative Contraindications

Bronchogen

—

CJC-1295 (no DAC)

·Untreated diabetes
·Severe insulin resistance

05Administration Protocol

Parameter

Bronchogen

CJC-1295 (no DAC)

1. Research context only

Bronchogen has been studied exclusively in animal models and organotypic tissue culture. No approved formulation or human administration protocol exists.

Add 2 mL bacteriostatic water to 2 mg vial → 1 mg/mL = 100 mcg per 0.1 mL. Roll gently.

2. Animal model protocol

In rat COPD models, tetrapeptide administered for 30-day course following 60-day NO₂ exposure. Route and exact dosing not specified in abstracts.Titova 2017 Kuzubova 2015

Subcutaneous, abdomen or thigh. Rotate sites.

3. Organotypic culture

Bronchial tissue explants from young (3-week) and aged (18-month) rats cultured in medium containing 0.05 ng/mL bronchogen, demonstrating tissue-specific stimulation.Zakutskiĭ 2006

Pre-sleep preferred. Often combined with ipamorelin in the same syringe.

4. Khavinson bioregulator tradition

Part of Russian peptide bioregulator framework emphasizing tissue-specific low-dose effects. Typically administered parenterally in related peptides from this series.

Lyophilised: room temp, protected from light. Reconstituted: refrigerate 2–8 °C, use within 30 days.

5. Needle

—

29–31G, 4–8 mm insulin syringe.

06Stack Synergy

Bronchogen

— no documented stacks

CJC-1295 (no DAC)

+ Ipamorelin

Strong

View Ipamorelin →

CJC-1295 (no DAC) and ipamorelin are the canonical "GHRH + GHRP" dual-axis stack at physiological timing. Both peak within 30 min and clear within 2 hours, producing a sharp, high-amplitude GH pulse closely resembling natural physiology. Preferred over the CJC-1295-DAC + ipamorelin stack when pulsatility (vs sustained elevation) is the goal.

CJC-1295 (no DAC): 100 mcg SQ · pre-sleep
Ipamorelin: 200–300 mcg SQ · same injection
Primary benefit: Pulsatile GH stimulation, recovery, body composition

Teichman 2006 Raun 1998