Inpegsomatropin · Clinical referenceLiterature reviewed 28 September 2026

Evidence, with context

The research library.

Clinical trials, pharmacometric research, and emerging findings on Pegpesen. Each entry identifies the evidence type and links to its source.

Recent additions

Reviewed 28 September 2026
2026Network meta-analysis

Long-acting growth hormones in East Asia: comparative efficacy and safety

Liu Q, Wu C, Peng D, et al. · Endocrine Practice. 32(8):1303–1310. · Online 1 April; issue August 2026.

This five-study network analysis included Pegpesen, Jintrolong, and somapacitan. For height velocity, the Pegpesen estimate versus daily GH was −0.10 cm/year (95% CI −0.53 to 0.32). The authors reported more favorable growth estimates for Jintrolong. Differences in adverse-event and serious-adverse-event rates were not statistically significant.

Interpretation: comparisons between long-acting products are indirect. Wide safety intervals and a small evidence network limit certainty; these findings do not establish a direct head-to-head advantage. Summary based on the published abstract.

2026Conference abstract

Pegpesen in non-GHD short stature: a Phase II basket trial

Liang Y and colleagues · ENDO 2026, oral abstract ORF47-04. · 15 June 2026.

The randomized, open-label, 52-week study enrolled 78 children with idiopathic short stature (ISS), small for gestational age (SGA), or Turner syndrome (TS). The abstract reports dose-response modeling and growth findings for weekly Pegpesen versus daily rhGH, with similar reported safety profiles between groups.

Preliminary conference evidence, not a full journal paper. These populations and investigational regimens should not be treated as additional approved indications or dosing recommendations.

2026Population PK/PD

Optimizing Pegpesen dosing through population PK/PD modeling

Zhao Y, Zou F, Gu J, He R, Yin Y. · Journal of Endocrinological Investigation. 49:599–607. · Online 5 November 2025; issue March 2026.

Data from the Phase I–III program informed simulations in 292 children with GHD. The model explored quarterly dose escalation and weight-banded dosing; modeled growth responses converged by month 24.

This is a modeling study. Its simulated titration and weight bands are research proposals, not replacements for approved dosing instructions.

The core clinical program

Product-specific studies
2025Randomized Phase III

Weekly Y-shaped PEGylated rhGH in children with GHD

Liang Y, Wei H, Yang F, et al. · The Journal of Clinical Endocrinology & Metabolism. 110:e2605–e2613. · Online 28 November 2024; 2025 issue.

The pivotal, active-controlled trial randomized 391 treatment-naïve children with GHD to weekly Pegpesen or daily somatropin. The 52-week analysis met the prespecified growth-velocity non-inferiority criterion.

Read efficacy together with adverse events, immunogenicity, the study population, and the duration of follow-up.

2022Randomized Phase II

Dose-ranging, PK/PD, and short-term growth outcomes

Liang Y, Zhang C, Wei H, et al. · Frontiers in Endocrinology. 13:922304. · 11 August 2022.

A multicenter study in 43 children evaluated three once-weekly PEGylated rhGH doses against daily rhGH over 12 weeks, characterizing exposure, IGF-1 response, and short-term growth.

The short treatment period and small groups limit conclusions about long-term outcomes.

Wider GH context

Background reading · not Pegpesen-specific evidence
2025Consensus

Long-acting GH therapy in pediatric GHD: international consensus

The Journal of Clinical Endocrinology & Metabolism · PMID 39672599.

Field-level guidance addressing long-acting GH treatment, monitoring, adherence, and remaining evidence gaps.

Class-level guidance should not be used to assume that different GH products have interchangeable doses or identical evidence.

Search scope: Pegpesen, inpegsomatropin, and Y-shaped PEGylated recombinant human growth hormone. Sources reviewed include PubMed, journal publishers, and the Endocrine Society’s ENDO 2026 program. Online-publication and journal-issue dates are shown separately where relevant. This is a curated reference list, not a systematic review. Local PDFs retained from the existing library.