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Protocol Reference
CJC-1295 (DAC)

CJC-1295 — phase 1 trial administration as published

Summarise how CJC-1295 was administered in the published phase 1 human research, and what those studies measured.

Not FDA ApprovedReviewed September 1, 2026
No established human dosing protocol exists for this compound. What follows describes the research context only — the conditions under which the compound has been studied, usually in animals or in vitro.

Research Context

Source of this information
Phase 1 research established pharmacokinetics and biochemical response only. Development was discontinued before efficacy trials.
Evidence level
Grade C — phase 1 human pharmacodynamic studies of biochemical endpoints
Population studied
Healthy adult volunteers.
Duration studied
Single-dose and short multiple-dose studies over weeks.
Route reported
Subcutaneous injection in the published studies

Protocol as Reported

  • 01Published phase 1 work administered single ascending subcutaneous doses expressed per kilogram of body weight, with GH and IGF-1 sampling over subsequent days.
  • 02Multiple-dose research administered injections at weekly or twice-weekly intervals, consistent with the albumin-bound half-life.
  • 03Endpoints were GH and IGF-1 concentrations, not body composition, strength or recovery.

Adverse Events Reported

  • Injection-site reactions, flushing and headache reported in early trials.
  • Sustained IGF-1 elevation raises unresolved concerns regarding glucose tolerance, oedema, arthralgia and neoplasia.

Limitations

  • No efficacy outcome data exist for any indication.
  • No approved label defines a clinical protocol, and clinical development was discontinued.
  • Community combination protocols with secretagogues have no controlled human evidence.

Sources

  • Phase 1 trial2006

    Prolonged stimulation of growth hormone and IGF-I secretion by CJC-1295 in healthy adults

    Journal of Clinical Endocrinology & Metabolism
    View Study
Read the full CJC-1295 research guide
Educational reference only. Peptide Atlas does not provide medical advice or individualised dosing guidance, and nothing on this page should be used to guide personal use.