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The European Union Clinical Trials Register   allows you to search for protocol and results information on:
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    The EU Clinical Trials Register currently displays   43889   clinical trials with a EudraCT protocol, of which   7298   are clinical trials conducted with subjects less than 18 years old.   The register also displays information on   18700   older paediatric trials (in scope of Article 45 of the Paediatric Regulation (EC) No 1901/2006).

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    EudraCT Number:2022-002954-25
    Sponsor's Protocol Code Number:ASND0036
    National Competent Authority:Denmark - DHMA
    Clinical Trial Type:EEA CTA
    Trial Status:Ongoing
    Date on which this record was first entered in the EudraCT database:2022-12-02
    Trial results
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    A. Protocol Information
    A.1Member State ConcernedDenmark - DHMA
    A.2EudraCT number2022-002954-25
    A.3Full title of the trial
    ApproaCH: A Phase 2b, Multicenter, Double-Blind, Randomized, Placebo-controlled Trial evaluating Efficacy and Safety of Subcutaneous Doses of TransCon CNP Administered Once Weekly for 52 Weeks in Children with Achondroplasia followed by an Open Label Extension period
    A.3.1Title of the trial for lay people, in easily understood, i.e. non-technical, language
    A phase 2b clinical trial to evaluate efficacy and safety of weekly doses of TransCon CNP compared with placebo in participants with achondroplasia aged 2 to 11 years of age
    A.3.2Name or abbreviated title of the trial where available
    A.4.1Sponsor's protocol code numberASND0036
    A.7Trial is part of a Paediatric Investigation Plan No
    A.8EMA Decision number of Paediatric Investigation Plan
    B. Sponsor Information
    B.Sponsor: 1
    B.1.1Name of SponsorAscendis Pharma Growth Disorders A/S
    B.3.1 and B.3.2Status of the sponsorCommercial
    B.4 Source(s) of Monetary or Material Support for the clinical trial:
    B.4.1Name of organisation providing supportAscendis Pharma Growth Disorders A/S
    B.5 Contact point designated by the sponsor for further information on the trial
    B.5.1Name of organisationAscendis Pharma A/S
    B.5.2Functional name of contact pointClinical Trial Information Desk
    B.5.3 Address:
    B.5.3.1Street AddressTuborg Boulevard 12
    B.5.3.2Town/ cityHellerup
    B.5.3.3Post codeDK-2900
    B.5.4Telephone number004570222244
    D. IMP Identification
    D.IMP: 1
    D.1.2 and D.1.3IMP RoleTest
    D.2 Status of the IMP to be used in the clinical trial
    D.2.1IMP to be used in the trial has a marketing authorisation No
    D.2.5The IMP has been designated in this indication as an orphan drug in the Community Yes
    D.2.5.1Orphan drug designation numberEU/3/20/2299
    D.3 Description of the IMP
    D.3.1Product nameTransCon CNP 3.9 mg CNP-38/vial
    D.3.2Product code TransCon CNP
    D.3.4Pharmaceutical form Powder and solvent for solution for injection
    D.3.4.1Specific paediatric formulation No
    D.3.7Routes of administration for this IMPSubcutaneous use
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.9.1CAS number 2413551-27-4
    D.3.9.2Current sponsor codeTransCon CNP
    D.3.9.3Other descriptive nameC-type natriuretic peptide conjugated to a multi-arm polyethylene glycol carrier molecule through a cleavable linker
    D.3.9.4EV Substance CodeSUB241143
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number3.9
    D.3.11 The IMP contains an:
    D.3.11.1Active substance of chemical origin Yes
    D.3.11.2Active substance of biological/ biotechnological origin (other than Advanced Therapy IMP (ATIMP) No
    The IMP is a:
    D.3.11.3Advanced Therapy IMP (ATIMP) No
    D. cell therapy medicinal product No
    D. therapy medical product No
    D. Engineered Product No
    D. ATIMP (i.e. one involving a medical device) No
    D. on Advanced therapies (CAT) has issued a classification for this product No
    D.3.11.4Combination product that includes a device, but does not involve an Advanced Therapy No
    D.3.11.5Radiopharmaceutical medicinal product No
    D.3.11.6Immunological medicinal product (such as vaccine, allergen, immune serum) No
    D.3.11.7Plasma derived medicinal product No
    D.3.11.8Extractive medicinal product No
    D.3.11.9Recombinant medicinal product No
    D.3.11.10Medicinal product containing genetically modified organisms No
    D.3.11.11Herbal medicinal product No
    D.3.11.12Homeopathic medicinal product No
    D.3.11.13Another type of medicinal product No
    D.8 Information on Placebo
    D.8 Placebo: 1
    D.8.1Is a Placebo used in this Trial?Yes
    D.8.3Pharmaceutical form of the placeboPowder and solvent for solution for injection
    D.8.4Route of administration of the placeboSubcutaneous use
    E. General Information on the Trial
    E.1 Medical condition or disease under investigation
    E.1.1Medical condition(s) being investigated
    Achondroplasia (ACH) in prepubertal children
    E.1.1.1Medical condition in easily understood language
    Short-limbed dwarfism
    E.1.1.2Therapeutic area Diseases [C] - Musculoskeletal Diseases [C05]
    MedDRA Classification
    E.1.2 Medical condition or disease under investigation
    E.1.2Version 25.0
    E.1.2Level LLT
    E.1.2Classification code 10000452
    E.1.2Term Achondroplasia
    E.1.2System Organ Class 10010331 - Congenital, familial and genetic disorders
    E.1.3Condition being studied is a rare disease Yes
    E.2 Objective of the trial
    E.2.1Main objective of the trial
    • To evaluate efficacy of TransCon CNP on growth
    E.2.2Secondary objectives of the trial
    • To evaluate efficacy of TransCon CNP on growth

    • To evaluate the treatment impact of TransCon CNP on spinal curvature

    • To evaluate the treatment impact of TransCon CNP on health-related
    quality of life
    E.2.3Trial contains a sub-study No
    E.3Principal inclusion criteria
    Participants are eligible to be included in the trial only if all of the following criteria apply:
    1. Written, signed informed consent of the 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).
    2. Male or female, between 2 and 11 years of age (inclusive) at the time of Screening.
    3. Clinical diagnosis of ACH with documented genetic confirmation available.
    4. Able to stand without assistance.
    5. Parent(s)/legal guardian(s) willing and able to administer weekly SC injections of IMP and to follow the protocol.
    6. At least six months of growth and disease history from ACHieve (TCC-NHS-01) trial or comparable growth and disease history available from medical records (pending confirmation by Medical Monitor).
    7. Considered eligible based on the medical history, physical examination, and the results of vital signs, ECG and clinical laboratory tests performed during the Screening period.
    E.4Principal exclusion criteria
    Participants are excluded from the trial if any of the following criteria apply:
    1. Participation (i.e., signed informed consent) in any interventional clinical trial before within 3 months prior to screening.
    2. Closed epiphysis.
    3. Known or suspected hypersensitivity to the IMP or related products (trehalose, tris[hydroxymethyl]aminomethane, succinate, and mPEG).
    4. Have a growth disorder or medical condition other than ACH that results in short stature or abnormal growth such as severe ACH with developmental delay and acanthosis nigricans (SADDAN), hypochondroplasia, growth hormone deficiency, Turner syndrome, pseudoachondroplasia, inflammatory bowel disease, celiac disease, hypothyroidism, hyperthyroidism, pre-diabetes, or diabetes mellitus.
    5. Have received any dose of prescription medications and IMP or surgical intervention intended to affect stature, growth, or body proportionality at any time.
    6. Requires, or anticipated to require, chronic (> 4 weeks) or repeated treatment (more than twice/year and >3 weeks/year) with systemic corticosteroids during participation in the trial. Chronic use of high-dose inhaled corticosteroids is not allowed.
    7. Known history of presence of injury or disease of the growth plate(s), other than ACH, that affects growth potential of long bones.
    8. Known history of any bone-related surgery affecting growth potential of long bones, such as:
    • Orthopedic reconstructive surgery for bone lengthening (e.g., procedures for leg bowing such as 8-plate are not exclusionary).
    • Cervicomedullary decompression surgery without anticipated need for repeat decompression during the time of the trial are allowed with minimum of 6 months of bone healing.
    • Ventriculoperitoneal (VP) shunt and laminectomy with full recovery are allowed with minimum of 6 months of bone healing.
    • Bone fracture within 6 months prior to screening (within 2 months for fracture of digits and buckle fractures).
    9. Clinically significant findings at Screening, such as:
    • Expected to require surgical intervention during participation in the trial. Common surgeries, such as insertion of grommets, adenoidectomy, tonsillectomy, or myringotomy tube placement, are permitted.
    • Severe untreated sleep apnea or newly initiated sleep apnea treatment (e.g., Continuous Positive Airway Pressure [CPAP] in the previous 2 months prior to Screening.
    • Musculoskeletal disease, such as Salter-Harris fractures or clinical and/or radiographic evidence of severe hip pathology, or
    • Otherwise, are considered by the Investigator and Medical Monitor to make a participant unfit to receive trial treatment or undergo trial related procedures.
    10. Have evidence at Screening that are consistent with severe cervicomedullary junction compression based on clinical and/or radiologic findings that indicate immediate surgical intervention is required.
    11. Have a clinically significant finding or arrhythmia as determined by the investigator in consultation with the medical monitor that indicates abnormal cardiac function or conduction that includes, but is not exclusive to:
    • Repaired or unrepaired coarctation.
    • Moderate or greater complexity congenital heart disease including tetralogy of Fallot, Atrioventricular septal defects, truncus arteriosus, total anomalous pulmonary venous return, double outlet right ventricle, or single ventricle heart disease.
    12. QTcF ≥ 450 msec at the Screening Visit.
    13. Known history or presence of condition that impacts hemodynamic stability (such as autonomic dysfunction and orthostatic intolerance).
    14. Known history or presence of the following:
    • Chronic anemia (iron deficiency anemia that is resolved or adequately treated in the Investigator’s opinion is allowed).
    • Chronic renal insufficiency (GFR <60 mL/min/1.73 m2 for >3 months).
    • Chronic or recurrent illness that can affect hydration or volume status, including conditions associated with decreased nutritional intake or increased volume loss.
    15. Known history or presence of malignant disease.
    16. Participant with serum 25-hydroxy-vitamin D (25OHD) levels of <30 nmol/L (<12 ng/mL) at Screening Visit will be excluded. Participants with 25OHD levels between 30-50 nmol/L (12-20 ng/mL) can be randomized provided treatment with Vitamin D supplementation is initiated.
    17. Any disease or condition that, in the opinion of the Investigator, may make the participant unlikely to fully complete the trial, may confound interpretation of trial results, or may present undue risk from receiving trial treatment. This could include family situations, complications or manifestations, or medications that might impact safety or be considered confounding.
    E.5 End points
    E.5.1Primary end point(s)
    AGV at Week 52
    E.5.1.1Timepoint(s) of evaluation of this end point
    Annualized growth velocity (AGV) will be evaluated at Week 52
    E.5.2Secondary end point(s)
    • Change from baseline in height Z-score at Week 52

    • Change from baseline in TLK ACH-specific Z-score at Week 52

    • Change from baseline in the SF-10 PHS score at Week 52

    Change from baseline in the following ACEM scores at Week 52:
    • ACEM-PF
    • ACEM-DF
    • ACEM-OSM
    E.5.2.1Timepoint(s) of evaluation of this end point
    • Change from baseline in height Z-score will be evaluated at week 52

    • Incidence of TEAEs will be evaluated at each visit and safety assessments (safety labs, vital signs, physical examination, 12-lead ECG, and radiographic assessments) will be evaluated, dependant on procedure, at screening and weeks 0, 4, 12, 26, 39, 52, 56, 64, 78, 91, 104 and 109

    • Plasma concentration of Total, Free CNP and mPEG will be evaluted at weeks 4, 12, 26, 39, 52, 56, 64, 78, 91 and 104

    • Detection and characterisation of ADAs will be evaluated at weeks 0, 4, 12, 26, 39, 52, 56, 64, 78, 91, 104 and 109
    E.6 and E.7 Scope of the trial
    E.6Scope of the trial
    E.6.1Diagnosis No
    E.6.2Prophylaxis No
    E.6.3Therapy Yes
    E.6.4Safety Yes
    E.6.5Efficacy Yes
    E.6.6Pharmacokinetic No
    E.6.7Pharmacodynamic No
    E.6.8Bioequivalence No
    E.6.9Dose response No
    E.6.10Pharmacogenetic No
    E.6.11Pharmacogenomic No
    E.6.12Pharmacoeconomic No
    E.6.13Others No
    E.7Trial type and phase
    E.7.1Human pharmacology (Phase I) No
    E.7.1.1First administration to humans No
    E.7.1.2Bioequivalence study No
    E.7.1.3Other No
    E. trial type description
    E.7.2Therapeutic exploratory (Phase II) Yes
    E.7.3Therapeutic confirmatory (Phase III) No
    E.7.4Therapeutic use (Phase IV) No
    E.8 Design of the trial
    E.8.1Controlled Yes
    E.8.1.1Randomised Yes
    E.8.1.2Open No
    E.8.1.3Single blind No
    E.8.1.4Double blind Yes
    E.8.1.5Parallel group Yes
    E.8.1.6Cross over No
    E.8.1.7Other Yes
    E. trial design description
    Randomised period followed by open label extension
    E.8.2 Comparator of controlled trial
    E.8.2.1Other medicinal product(s) No
    E.8.2.2Placebo Yes
    E.8.2.3Other No
    E.8.2.4Number of treatment arms in the trial2
    E.8.3 The trial involves single site in the Member State concerned Yes
    E.8.4 The trial involves multiple sites in the Member State concerned No
    E.8.5The trial involves multiple Member States Yes
    E.8.5.1Number of sites anticipated in the EEA3
    E.8.6 Trial involving sites outside the EEA
    E.8.6.1Trial being conducted both within and outside the EEA Yes
    E.8.6.2Trial being conducted completely outside of the EEA No
    E.8.6.3If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned
    New Zealand
    United Kingdom
    United States
    E.8.7Trial has a data monitoring committee Yes
    E.8.8 Definition of the end of the trial and justification where it is not the last visit of the last subject undergoing the trial
    E.8.9 Initial estimate of the duration of the trial
    E.8.9.1In the Member State concerned years2
    E.8.9.1In the Member State concerned months6
    E.8.9.1In the Member State concerned days0
    E.8.9.2In all countries concerned by the trial years2
    E.8.9.2In all countries concerned by the trial months6
    E.8.9.2In all countries concerned by the trial days0
    F. Population of Trial Subjects
    F.1 Age Range
    F.1.1Trial has subjects under 18 Yes
    F.1.1Number of subjects for this age range: 80
    F.1.1.1In Utero No
    F.1.1.2Preterm newborn infants (up to gestational age < 37 weeks) No
    F.1.1.3Newborns (0-27 days) No
    F.1.1.4Infants and toddlers (28 days-23 months) No
    F.1.1.5Children (2-11years) Yes
    F. of subjects for this age range: 80
    F.1.1.6Adolescents (12-17 years) No
    F.1.2Adults (18-64 years) No
    F.1.3Elderly (>=65 years) No
    F.2 Gender
    F.2.1Female Yes
    F.2.2Male Yes
    F.3 Group of trial subjects
    F.3.1Healthy volunteers No
    F.3.2Patients Yes
    F.3.3Specific vulnerable populations No
    F.3.3.1Women of childbearing potential not using contraception No
    F.3.3.2Women of child-bearing potential using contraception No
    F.3.3.3Pregnant women No
    F.3.3.4Nursing women No
    F.3.3.5Emergency situation No
    F.3.3.6Subjects incapable of giving consent personally No
    F.3.3.7Others No
    F.4 Planned number of subjects to be included
    F.4.1In the member state25
    F.4.2 For a multinational trial
    F.4.2.1In the EEA 32
    F.4.2.2In the whole clinical trial 80
    F.5 Plans for treatment or care after the subject has ended the participation in the trial (if it is different from the expected normal treatment of that condition)
    No plans for treatment after the Open Label Extension Period has ended.
    G. Investigator Networks to be involved in the Trial
    N. Review by the Competent Authority or Ethics Committee in the country concerned
    N.Competent Authority Decision Authorised
    N.Date of Competent Authority Decision2023-01-24
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2022-12-21
    P. End of Trial
    P.End of Trial StatusOngoing
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