Recovery ⏱ Half-life: ~1 hour FDA-Approved

Abaloparatide

Abaloparatide (PTHrP Analog 1-34)

Evidence at a Glance

Regulatory statusFDA-Approved
Approved as Tymlos for postmenopausal osteoporosis (2017); expanded to men with osteoporosis (2022).
Human evidenceExtensive
Animal evidenceExtensive

Abaloparatide is an FDA-approved anabolic PTHrP analog shown in large randomized trials to cut new vertebral fractures by roughly 86% in postmenopausal women.

What the research does not support

  • It is not a general anti-aging or bodybuilding peptide; it is a prescription osteoporosis drug for fracture-risk reduction.
  • It does not carry an unlimited treatment window; cumulative anabolic bone-agent use is limited due to a rodent osteosarcoma signal.
  • It is not intended for people without osteoporosis or high fracture risk.
Half-Life
~1 hour
Purity
Pharmaceutical grade
Mol. Weight
3,960.7 Da
Form
Pre-filled pen for subcutaneous injection

What is Abaloparatide?

Abaloparatide (Tymlos) is an FDA-approved bone anabolic agent representing the second generation of PTH-pathway osteoporosis therapeutics. By targeting the PTH1 receptor through PTHrP-like binding rather than PTH-like binding (as teriparatide does), it achieves bone formation with potentially less hypercalcemia risk and a more favorable bone formation/resorption ratio.

Dosage Information (Research Use)

80mcg SC once daily in the periumbilical region. Maximum treatment duration: 2 years. Prescription medication.

Reconstitution & Handling

Pre-filled pen — no reconstitution.

Half-Life & Pharmacokinetics

~1 hour

Reported Observations in Literature

Injection site reactions (redness, edema) — most common (44%). Hypercalcemia (3.4%), dizziness (10%), nausea (8%). Orthostatic hypotension may occur with first doses. Black box warning: osteosarcoma risk (rodent data — clinical relevance uncertain).

Key Research References

  • Miller PD et al. “Effect of abaloparatide vs placebo on new vertebral fractures (ACTIVE).” JAMA. 2016;316:722-33

How Abaloparatide Works

Abaloparatide is a synthetic analog of parathyroid hormone-related protein (PTHrP) that selectively activates the RG conformation of the PTH1 receptor. This selective binding produces a more transient cAMP response than teriparatide, resulting in more potent stimulation of bone formation with less bone resorption — a superior anabolic window for bone building.

Research Applications

🔬 Postmenopausal osteoporosis treatment
🔬 High fracture risk management
🔬 Sequential osteoporosis therapy protocols

Research Findings

The ACTIVE trial showed 86% reduction in new vertebral fractures and 43% reduction in nonvertebral fractures compared to placebo over 18 months. In the ACTIVExtend follow-up, sequential therapy with alendronate maintained and extended bone density gains. FDA-approved in 2017 as Tymlos.

Dosage & Administration

80mcg SC once daily in the periumbilical region. Maximum treatment duration: 2 years. Prescription medication.

Safety & Side Effects

Injection site reactions (redness, edema) — most common (44%). Hypercalcemia (3.4%), dizziness (10%), nausea (8%). Orthostatic hypotension may occur with first doses. Black box warning: osteosarcoma risk (rodent data — clinical relevance uncertain).

Important: All safety information is derived from published research, primarily animal studies. No controlled human clinical trial data exists unless explicitly noted. This compound is sold for research purposes only.

Quick Facts

Molecular Weight 3,960.7 Da
Half-Life ~1 hour
Purity Pharmaceutical grade
Form Pre-filled pen for subcutaneous injection
Storage Refrigerate 2-8°C. May store at room temperature up to 30 days.

Key Research References

  • Miller PD et al. "Effect of abaloparatide vs placebo on new vertebral fractures (ACTIVE)." JAMA. 2016;316:722-33

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