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Navepegritide

Phase 2

Achondroplasia | Small molecule | Rare Disease |Ascendis Pharma A/S|Last Updated: Jul 14, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials3
Total Enrollment180

FDA Designations

No designations recorded

Clinical trial landscape

Navepegritide · 3 trials · 1 indication

Phase 2 3
NCT06732895A Clinical Trial to Evaluate Efficacy and Safety of Navepegritide in Adolescents (12 - 18 Years of Age) With Achondroplasia.Achondroplasia
RECRUITING24 Analytics
NCT06079398A Clinical Trial to Evaluate Efficacy and Safety of TransCon CNP Compared With Placebo in Infants (0 to <2 Years of Age) With AchondroplasiaAchondroplasia
RECRUITING72 Analytics
NCT05598320A Clinical Trial to Evaluate Efficacy and Safety of TransCon CNP Compared With Placebo in Children With AchondroplasiaAchondroplasia
COMPLETED84 Analytics
PHASE2RECRUITING
A Clinical Trial to Evaluate Efficacy and Safety of Navepegritide in Adolescents (12 - 18 Years of Age) With Achondroplasia.
AchondroplasiaUnlock trial analytics
PHASE2RECRUITING
A Clinical Trial to Evaluate Efficacy and Safety of TransCon CNP Compared With Placebo in Infants (0 to <2 Years of Age) With Achondroplasia
AchondroplasiaUnlock trial analytics
PHASE2COMPLETED
A Clinical Trial to Evaluate Efficacy and Safety of TransCon CNP Compared With Placebo in Children With Achondroplasia
AchondroplasiaUnlock trial analytics

Study Endpoints

Primary Endpoints

Annualized Growth Velocity
52 weeks

cm per year

To evaluate the safety and tolerability of Navepegritide
52 weeks

Incidence of treatment emergent adverse events (TEAEs)

To evaluate the effect of Navepegritide on growth
52 weeks

Change from baseline to 52 weeks in length/height Z-score

Annualized Growth Velocity (AGV) at Week 52
At Week 52

Annualized growth velocity is defined as (height - baseline height)/(date of height assessment - date of baseline) \* 365.25. Annualized growth velocity reported in terms of centimeters (cm) per year. Missing values at Week 52 were imputed by a multiple imputation method.

Secondary Endpoints

Height Z-score
52 weeks
Change From Baseline in Height Z-score (ACH-specific) at Week 52
Baseline, Week 52
Change From Baseline in Height Z-score (CDC-Based) at Week 52
Baseline, Week 52
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
NavepegritideEXPERIMENTALOnce weekly double-blinded treatment with SC injection of 100 µg/kg of navepegritide for 52 weeks
Placebo for NavepegritidePLACEBO_COMPARATOROnce weekly double-blinded treatment with SC injection of 100 µg/kg of placebo for navepegritide for 52 weeks
Open-Label Extension Period: NavepegritideEXPERIMENTALParticipants who completed the 52-week treatment period continued into the open-label extension period and received treatment with navepegritide (TransCon CNP) doses up to Week 104. All participants received navepegritide at a dose of 100 μg/kg/week.

Interventions

NameTypeDescription
NavepegritideDRUGOnce-weekly subcutaneous injection of 100 µg/kg navepegritide for 52 weeks
Placebo for navepegritideDRUGOnce-weekly subcutaneous injection of 100 µg/kg placebo for navepegritide
Navepegritide (TransCon CNP)DRUGOnce-weekly subcutaneous injection of 100 µg/kg Navepegritide (TransCon CNP)
Placebo for Navepegritide (TransCon CNP)DRUGOnce-weekly subcutaneous injection of 100 µg/kg placebo for Navepegritide (TransCon CNP)
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Eligibility Criteria

Age Range12 Years to 17 Years
SexALL
Healthy VolunteersNo
Study Sites5

Inclusion Criteria: * Written, signed informed consent and/or assent of the participant, participant parent(s) or legal guardian(s) of the participant, and as required by the institutional review board/human research ethics committee/independent ethics committee (IRB/HREC/IEC). For participants who...

Countries:CanadaDenmarkFranceIrelandUnited KingdomUnited StatesAustraliaAustriaFinlandGermanyItalyNew ZealandNorwayPortugalSwedenSpain
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Recent Changes (Last 90 Days)

MEDIUMAug 14, 2026NCT05598320TRIAL_REMOVED: changed
MEDIUMAug 14, 2026NCT05598320TRIAL_REMOVED: changed
MEDIUMAug 14, 2026NCT05598320TRIAL_REMOVED: changed

Frequently asked questions about Navepegritide

What is Navepegritide used for?

Navepegritide is an investigational drug being developed for achondroplasia, a rare genetic condition that causes short stature and disproportionate dwarfism. It is currently in Phase 2 clinical trials evaluating its efficacy and safety in children, infants, and adolescents with achondroplasia.

What does Navepegritide target?

Navepegritide is a small molecule designed to treat achondroplasia. Its specific molecular target is not disclosed in the available information. The drug is being studied for its ability to improve growth outcomes in patients with achondroplasia.

Who makes Navepegritide?

Navepegritide is being developed by Ascendis Pharma A/S, a biopharmaceutical company listed on the stock exchange under the ticker ASND. The company is conducting Phase 2 clinical trials to evaluate the drug's safety and efficacy in treating achondroplasia.

What phase is Navepegritide in?

Navepegritide is currently in Phase 2 clinical development. It is an investigational drug, meaning it has not been approved by regulatory authorities. The ongoing trials are designed to assess its efficacy and safety in different age groups with achondroplasia.

What clinical trials is Navepegritide in?

Navepegritide is being studied in three Phase 2 clinical trials. NCT05598320, completed, evaluated TransCon CNP in children aged 2 years and older. NCT06079398, recruiting, is for infants under 2 years. NCT06732895, recruiting, is for adolescents aged 12-18 years.

Is Navepegritide the same as TransCon CNP?

Navepegritide is also known as TransCon CNP, as indicated by the clinical trial titles. It is administered as two separate subcutaneous injections in combination with lonapegsomatropin. The drug is being evaluated for treating achondroplasia across different age groups.