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RPEP-05315 · 2021

How Parathyroid Hormone Peptides Build and Break Down Bone

PTH's dual bone-building and bone-resorbing effects depend on administration pattern, working through Wnt, cAMP, and RANKL pathways. PTH-related peptides in development may overcome teriparatide's clinical limitations.

Chen, Tianhong; Wang, Yi; Hao, Zhuowen; Hu, Yingkun; Li, Jingfeng · Review

RPEP-09120 · 2024

Comparing Tirzepatide Doses for Diabetes: A Network Meta-Analysis of 10 Trials

Compared to tirzepatide 5 mg: - 10 mg: additional 19% HbA1c reduction (MD: -0.19), additional 1.96 kg weight loss - 15 mg: additional 31% HbA1c reduction (MD: -0.32), additional 3.31 kg weight loss, and improved fasting glucose (MD: -6.71 mg/dL) The dose-response relationship was clear and consistent across the 10 studies. Higher doses produced incrementally better metabolic outcomes. For safety, gastrointestinal events were numerically higher with increasing doses but without reaching statistical significance. There were no significant differences across doses for death, nausea, diarrhea, vomiting, dyspepsia, decreased appetite, injection site reactions, hypoglycemia, treatment discontinuation, or serious adverse events.

Rangwala, Hussain Sohail; Fatima, Hareer; Ali, Mirha; Mustafa, Muhammad Saqlain; Shafique, Muhammad Ashir; Rangwala, Burhanuddin Sohail; Abbas, Syed Raza · Network Meta Analysis

RPEP-09213 · 2024

Does Doubling Oral Semaglutide from 7 mg to 14 mg Improve Diabetes Control?

Dose escalation from 7 mg to 14 mg oral semaglutide produced a significant additional HbA1c reduction of -0.5 ± 0.8% (from 7.4% to 7.0%, p<0.01) and weight loss of -2.0 ± 4.4 kg (p<0.01) over 24 weeks. 41% of patients achieved ≥3% weight reduction. GI disorders occurred in 10.6% (nausea 7.6%), all mild-moderate.

Sato, Genki; Uchino, Hiroshi; Hirose, Takahisa · Cohort

RPEP-09223 · 2024

Once-Monthly Semaglutide: Hydrogel Microspheres Could Replace Weekly Injections

Hydrogel microsphere-semaglutide showed an in vivo release half-life of ~36 days in mice. A single subcutaneous dose produced 20% lean-sparing body weight loss over one month, statistically equivalent to twice-daily semaglutide. Pharmacokinetic simulations predicted once-monthly human dosing with Cmin matching weekly dosing but only 75% of the Cmax, potentially reducing adverse effects.

Schneider, Eric L; Hangasky, John A; Fernández, Rocío Del Valle; Ashley, Gary W; Santi, Daniel V · Animal Study