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Navepegritide

Phase 2FDA approved

Achondroplasia | Small molecule | Rare Disease |Ascendis Pharma A/S|Trials Updated: Oct 13, 2026

Navepegritide development status

FDA approval on record Feb 27, 2026 as Yuviwel
Approval holderAscendis
ApplicationNDA219164
Highest phase Phase 2
Registered trials 2 across 1 sponsor since Oct 2023

Label indication YUVIWEL ® is indicated to increase linear growth in pediatric patients 2 years of age and older with achondroplasia with open epiphyses. This indication is approved under accelerated approval based on an improvement in annualized growth velocity [see Clinical Studies (14) ]. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trial(s). FDA label

Navepegritide target and mechanism

ModalitySmall molecule

Also known as Navepegritide (TransCon CNP)

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials4
Total Enrollment203

FDA Designations

No designations recorded

Navepegritide clinical trials

Navepegritide · 4 trials · 1 indication

Phase 2 4
NCT06732895A Clinical Trial to Evaluate Efficacy and Safety of Navepegritide in Adolescents (12 - 18 Years of Age) With Achondroplasia.Achondroplasia
ACTIVE NOT_RECRUITING25 Analytics
NCT06433557A Phase 2 Clinical Trial to Evaluate Efficacy, Safety, and Tolerability of Navepegritide in Combination With Lonapegsomatropin in Children With AchondroplasiaAchondroplasia
ACTIVE NOT_RECRUITING22 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
PHASE2ACTIVE NOT_RECRUITING
A Clinical Trial to Evaluate Efficacy and Safety of Navepegritide in Adolescents (12 - 18 Years of Age) With Achondroplasia.
AchondroplasiaUnlock trial analytics
PHASE2ACTIVE NOT_RECRUITING
A Phase 2 Clinical Trial to Evaluate Efficacy, Safety, and Tolerability of Navepegritide in Combination With Lonapegsomatropin in Children 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

Treatment-emergent adverse events (TEAEs).
Throughout the trial for 156 weeks

safety profile of navepegritide and lonapegsomatropin

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
Annualized growth velocity
From start until 156 weeks
Change From Baseline in Height Z-score (ACH-specific) 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
Combination of Navepegritide and LonapegsomatropinEXPERIMENTAL -
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
Combination of Navepegritide and Lonapegsomatropin administered as two separate s.c. injectionsDRUGFor navepegritide, a once weekly s.c. dose of 100 μg CNP/kg. For lonapegsomatropin, a once weekly s.c. dose of lonapegsomatropin 0.30 mg hGH/kg as starting dose. Treatment duration of up to 156 weeks.
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)

MEDIUMOct 13, 2026NCT06732895Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMOct 13, 2026NCT06732895Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMAug 14, 2026NCT05598320TRIAL_REMOVED: changed
MEDIUMAug 14, 2026NCT05598320TRIAL_REMOVED: changed
MEDIUMAug 14, 2026NCT05598320TRIAL_REMOVED: changed

Frequently asked questions about Navepegritide

What is navepegritide?

Navepegritide is an investigational therapy being developed for achondroplasia, the most common form of disproportionate short stature. It is also known as TransCon CNP. Ascendis Pharma A/S is developing the drug, and it is currently in Phase 2 clinical development.

What is navepegritide used for in achondroplasia?

Navepegritide is being studied for the treatment of achondroplasia in people with the condition. Clinical trials have enrolled infants, children, and adolescents with achondroplasia. It is investigational and has not been approved for any use.

Who makes navepegritide?

Navepegritide is developed by Ascendis Pharma A/S, which trades under the ticker ASND. The company is running a Phase 2 program for the drug in achondroplasia, including studies in infants, children, and adolescents.

What phase is navepegritide in?

Navepegritide is in Phase 2 clinical development for achondroplasia. It is investigational and has not been approved by the FDA. Four trials have been conducted or are ongoing, with three currently active and one completed.

What clinical trials is navepegritide in?

Navepegritide trials include NCT06732895 in adolescents aged 12 to 18, NCT06433557 testing it in combination with lonapegsomatropin in children, NCT06079398 in infants under 2 years, and the completed NCT05598320 in children. Total enrollment across these studies is 203 participants.

Is navepegritide the same as TransCon CNP?

Yes, navepegritide is also known as TransCon CNP. Some trials also study navepegritide in combination with lonapegsomatropin, given as two separate subcutaneous injections. Both names refer to the same Ascendis Pharma development program for achondroplasia.