Source comparison
Head-to-Head vs. Cross-Trial: The Only Fair Comparisons
This is the honesty centerpiece of the article. It is tempting to line up tesamorelin’s trial results against CJC-1295’s trial results and declare a winner. But the two were studied in different people, for different purposes, with different endpoints, over di
This comparison does not assign a generated winner or score.
- This is the honesty centerpiece of the article. It is tempting to line up tesamorelin’s trial results against CJC-1295’s trial results and declare a winner. But the two were studied in different people, for different purposes, with different endpoints, over different time frames — so a direct numeric comparison is not valid. The only intellectually honest comparisons are the ones the evidence actually supports.
- Tesamorelin vs. placebo (visceral/hepatic fat, HIV lipodystrophy)
- Multiple Phase 3 double-blind RCTs + later RCTs
- Strong (direct, replicated)
- Tesamorelin significantly reduces visceral and hepatic fat vs. placebo in this population[2]
- CJC-1295 (DAC) vs. placebo (GH/IGF-1 surrogates, healthy adults)
- Two small early-phase RCT/controlled studies
- Weak (surrogate endpoints, no clinical outcome)
- CJC-1295 with DAC raises GH and IGF-1 for days after a single dose[6]
- CJC-1295 (no-DAC) — any human outcome
- None published
- No direct data; not established
- No controlled human evidence exists for the no-DAC form
- Tesamorelin vs. CJC-1295 (head-to-head)
- None — no shared-protocol trial exists
- No direct data; cross-trial inference only
- The two have never been compared under a common protocol or endpoint
- Read that table top to bottom and the honest hierarchy is unmistakable. Tesamorelin has direct, replicated, placebo-controlled human efficacy data for a defined endpoint. CJC-1295 (DAC) has weak, surrogate-only human data. CJC-1295 (no-DAC) has no controlled human data. And the specific claim people most want — that one of these is “better” than the other — has no supporting head-to-head trial. Any comparison of their magnitudes is inference across unlike studies, which cannot establish superiority.