New Oral GH Secretagogues Based on Phenyl Piperazine Chemistry
A new class of orally active phenyl piperazine-based GH secretagogues was discovered through structural mimicry of known privileged scaffolds.
Quick Facts
What This Study Found
Phenyl piperazine-based peptidomimetics were identified as potent, orally active GH secretagogues by mimicking privileged structural motifs from known GH-releasing compounds.
Key Numbers
How They Did This
Medicinal chemistry approach using structure-activity relationship analysis, synthesis of novel phenyl piperazine compounds, and in vitro/in vivo GH release testing.
Why This Research Matters
Discovering new chemical scaffolds for GH secretagogues expands the options for developing oral GH-releasing drugs, potentially leading to compounds with better pharmacological profiles than existing options.
The Bigger Picture
The search for oral GH secretagogues involved exploring multiple chemical scaffolds. This phenyl piperazine series represents another viable approach alongside MK-677's benzolactam scaffold, diversifying the chemical space for GH secretagogue drug development.
What This Study Doesn't Tell Us
Short abstract with limited detail on pharmacokinetic properties. Long-term safety data not available. How these compounds compare to MK-677 in clinical settings is unknown.
Questions This Raises
- ?How do these phenyl piperazine compounds compare to MK-677 in selectivity and side effect profiles?
- ?Did any of these compounds advance to clinical trials?
- ?What is the receptor binding profile compared to established GH secretagogues?
Trust & Context
- Key Stat:
- Potent oral activity Best phenyl piperazine compounds showed strong GH-releasing activity via oral administration
- Evidence Grade:
- Medicinal chemistry communication in a respected journal. Demonstrates proof-of-concept for a new scaffold but limited pharmacological characterization.
- Study Age:
- Published in 1998, part of the active era of GH secretagogue drug discovery that produced MK-677 and related compounds.
- Original Title:
- Synthesis and biological activities of phenyl piperazine-based peptidomimetic growth hormone secretagogues.
- Published In:
- Bioorganic & medicinal chemistry letters, 8(11), 1431-6 (1998)
- Authors:
- Barakat, K J(2), Cheng, K(5), Chan, W W(2), Butler, B S, Jacks, T M, Schleim, K D, Hora, D F, Hickey, G J, Smith, R G, Patchett, A A, Nargund, R P
- Database ID:
- RPEP-00450
Evidence Hierarchy
Frequently Asked Questions
What is a peptidomimetic?
A peptidomimetic is a small molecule designed to mimic the biological activity of a peptide but with a non-peptide structure. This often makes the compound more stable and absorbable by mouth compared to the original peptide.
Why do scientists keep developing new GH secretagogue types?
Different chemical scaffolds may offer different advantages — better absorption, fewer side effects, or improved selectivity. Having multiple options increases the chance of finding compounds with the ideal combination of properties for clinical use.
Read More on RethinkPeptides
Cite This Study
https://rethinkpeptides.com/research/RPEP-00450APA
Barakat, K J; Cheng, K; Chan, W W; Butler, B S; Jacks, T M; Schleim, K D; Hora, D F; Hickey, G J; Smith, R G; Patchett, A A; Nargund, R P. (1998). Synthesis and biological activities of phenyl piperazine-based peptidomimetic growth hormone secretagogues.. Bioorganic & medicinal chemistry letters, 8(11), 1431-6.
MLA
Barakat, K J, et al. "Synthesis and biological activities of phenyl piperazine-based peptidomimetic growth hormone secretagogues.." Bioorganic & medicinal chemistry letters, 1998.
RethinkPeptides
RethinkPeptides Research Database. "Synthesis and biological activities of phenyl piperazine-bas..." RPEP-00450. Retrieved from https://rethinkpeptides.com/research/barakat-1998-synthesis-and-biological-activities
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkPeptides research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.