CompletedPhase 1ACTRN12618001157268

A Trial Evaluating Safety, Tolerability and Pharmacokinetics of Subcutaneous Single Doses of ACP-015 in Healthy Adult Male Subjects.

A Phase 1, Double-Blind, Randomized, Placebo-Controlled, Dose Escalation Trial Evaluating Safety, Tolerability and Pharmacokinetics of Subcutaneous Single Doses of ACP-015 in Healthy Adult Male Subjects.


Sponsor

Ascendis Pharma Growth Disorders A/S

Enrollment

60 participants

Start Date

May 8, 2018

Study Type

Interventional

Conditions

Summary

The aim of the trial is to evaluate the safety and pharmacokinetics of ACP-015 in healthy male subjects. Such data will be descriptive rather than based on a statistical approach. ACP-015 is designed to provide long-term CNP exposure with the goal of optimizing efficacy with a well-tolerated and convenient once weekly dose. No identified or potential risks for use of ACP-015 in humans have been established as no data is available regarding the use of ACP-015 in humans.


Eligibility

Sex: MalesMin Age: 25 YearssMax Age: 60 Yearss

Inclusion Criteria10

  • Able to give Informed consent
  • Able to comply with study protocol per investigator judgement
  • Healthy adult males aged 25-60 years at time of Screening
  • Attainment of adult height (defined as subject’s confirmation of no change in standing height within 12 months of screening)
  • BMI 18 – 27 kg/m2
  • Body weight <100 kg
  • In good general health as determined by medical history, physical exams and laboratory evaluation at time of screening
  • Screening chemistry and hematology laboratory results in the normal range of the reference laboratory (or considered not clinically significant by the investigator)
  • Subject must agree to not father a baby while on this study and for 90 days following the end of the study.. Males with female partners of child bearing potential must agree to use a barrier method of contraception (ie, condom) for the entire study period and for 90 days following the end of the study. Female partners must use a highly effective form of contraception (including oral, injectable or implantable contraception, or IUD) for the entire study period and for 90 days post end of the study.
  • Agreement to refrain from donating sperm during clinical trial participation and for 90 days following the end of the study

Exclusion Criteria32

  • Participation in any investigational medication or device trials within 90 days or 5 half-lives (whichever is longer) prior to screening (and during enrollment in current trial)
  • Prior participation in investigation trial (at any time) involving use of vosoritide
  • History or presence of malignant disease, other than basal cell epithelioma/carcinoma or completely resected squamous skin cancer with no recurrence for 12 months
  • Any history of significant bone disorders including (but not limited to) osteoporosis, hypo- or hyperparathyroidism, or inherited skeletal dysplasias
  • Baseline systolic blood pressure less than 90 mm Hg
  • Past history of, or presence of orthostatic hypotension defined as a decrease of more than or equal to 20 mm Hg systolic blood pressure or more than 20 bpm increase in heart rate at 3 minutes of standing), or with symptoms of lightheadedness, dizziness, or fainting upon standing at screening. the more than 20bpm increase in heart rate upon standing must result in a heart rate of more than 120 bpm or be considered clinically significant by the investigator.
  • Subject has electrographically significant abnormalities that might interfere with ECG analysis including evidence of a previous MI, LVH, flat T waves (particularly in the inferior leads) or more than minor non- specific ST-T wave changes or:
  • QRS more than 110 msec
  • QT interval corrected using Fridericia’s formula (QTcF) more than 440 msec (men and women)
  • PR interval more than 220 msec
  • Heart rate less than 50 BPM or more than 90 BPM
  • Complete right bundle branch block or left bundle branch block.
  • Subject has a history of, disease or dysfunction of the pulmonary, cardiovascular, endocrine, hematologic, neurological, immune, gastrointestinal, genitourinary, or other body system, that is clinically significant in the opinion of the Investigator, including
  • Anemia
  • Pathologic factures
  • Diabetes mellitus, Type I or II
  • History of drug abuse (including alcoholism) or positive drug screen during screening
  • History of cardiac or valvular disease (including hypertension or hypotension)
  • Acute illness that can affect hydration or volume status [such as that associated with decreased nutritional intake or increased volume loss (such as diarrhea)]
  • Known hypersensitivity to the components of the trial medication (trehalose, tris(hydroxymethyl)aminomethane, succinate and PEG)
  • Poor peripheral venous access
  • Planned procedure or surgery during the course of the study
  • Any other reason that in the opinion of the investigator would prevent the subject from completing participation or following the trial schedule (including non-compliance)
  • Subject uses any prescription drug or over-the-counter medication, including herbals or routine vitamins or minerals, within 7 days prior to check-in (or 14 days if the drug is a potential inducer or inhibitor of cytochrome P450 [CYP] 3A4 or P-glycoprotein [P gp] [eg, St. John’s Wort, rifampin, cyclosporine, or ritonavir]) or 5 half-lives (whichever is longer) or subject requires continued use of a prescription drug or over-the-counter medication during study participation, with the exception of over-the-counter analgesics (eg, occasional [less than 2 times/week] acetaminophen, ibuprofen, naproxen]
  • Subject is unwilling to refrain from strenuous exercise from 7 days prior to check-in through completion of the study
  • Subject is unwilling to abstain from ingestion of caffeine or xanthine-containing products (eg, tea, coffee, chocolate, cola, etc.) beginning 96 hours prior to check-in until discharge and within 96 hours prior to each visit
  • Subject is unwilling to abstain from alcohol beginning 48 hours prior to check-in through completion of the study
  • Subject has a history of high alcohol consumption within 6 months prior to Screening, defined as an average weekly intake of >14 units. One unit is equivalent to 8 g of alcohol: a half-pint (~240 mL) of beer, 1 glass (125 mL) of wine, or 1 measure (25 mL) of spirits
  • Subject uses or has used nicotine-containing products (eg, cigarettes, cigars, chewing tobacco, snuff, etc.) within 6 months prior to Screening and/or is unwilling to abstain from using nicotine-containing products until the end of the study
  • Subject is unwilling to abstain from consuming grapefruit and/or grapefruit juice within 14 days prior to check-in and is unwilling to abstain from consuming grapefruit and/or grapefruit juice until the end of the study.
  • Subject is unwilling to abstain from consuming other fruit juices within 48 hours prior to check-in and is unwilling to abstain from these items within 48 hours prior to each study visit
  • Subject is unwilling to abstain from consuming cruciferous vegetables (eg, kale, broccoli, watercress, collard greens, kohlrabi, Brussel sprouts, or mustard greens) or charbroiled meats within 7 days prior to check-in and is unwilling to abstain from these items until the end of the study

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Interventions

This is a single center, phase 1, entry into human, double-blind, placebo-controlled trial of TransCon CNP (ACP-015) given subcutaneously (SC) to healthy adult male subjects. The trial comprises 6

This is a single center, phase 1, entry into human, double-blind, placebo-controlled trial of TransCon CNP (ACP-015) given subcutaneously (SC) to healthy adult male subjects. The trial comprises 6 dosing cohorts [up to 10 subjects per cohort (up to 8 active + 2 placebo)]. Study drug is administered SC in the abdomen in single doses to ascending dose cohorts (3 µg/kg, 10 µg/kg, 25 µg/kg, 75 µg/kg, 150 µg/kg, and 300 µg/kg CNP or until maximum tolerated dose (MTD) is identified. Each Single Ascending Dose (SAD) cohort consists of a screening visit (Day -28 to Day -2) to assess eligibility, a subsequent check-in period in which screening is completed and eligibility is confirmed (Day -2 to Day -1), and a dosing period (Day 1) followed by a total safety observational period of 4 weeks after the SAD dose of study drug. Final eligibility for trial enrollment will be determined at check-in to the clinic before randomization (Day -1) and dosing (on Day 1). Up to ten eligible subjects who have successfully completed screening will be enrolled into the lowest dose cohort that is yet to be filled, and randomly assigned (double-blind) to receive TransCon CNP (ACP-015) or matched placebo (4:1). Each SAD cohort will be enrolled and completed in a sequential fashion. There will be a sentinel pair of subjects (one receiving TransCon CNP (ACP-015) and the other receiving placebo) for each of the six SAD cohorts who will be dosed first. After a period of approximately 72 hours, and at the discretion of the Principal Investigator, the same TransCon CNP (ACP-015) or placebo dose will be given to the rest of the subjects in the respective SAD cohort. At the completion of the inpatient period after dosing for each cohort (inclusive of an inpatient period from Day -2 through Day 8), blinded clinical safety and laboratory parameters will be assessed in a Data and Safety Monitoring Board (DSMB) meeting to provide a recommendation on dose escalation either per protocol or with modifications. After receipt of the DSMB recommendation, the Safety Data Review Committee will make a decision either to continue with dose escalation or to pause (or stop) the dose escalation, after which subject dosing assignments will be unblinded.


Locations(1)

VIC, Australia

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ACTRN12618001157268


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