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An Open Label, Phase 1b, Ascending Dose Study of DM199

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ClinicalTrials.gov Identifier: NCT02868996
Recruitment Status : Completed
First Posted : August 16, 2016
Last Update Posted : December 7, 2017
Sponsor:
Collaborator:
Novotech (Australia) Pty Limited
Information provided by (Responsible Party):
DiaMedica Therapeutics Inc

Brief Summary:
This is a Phase 1B study to assess the safety, tolerability and pharmacokinetics of DM199 in healthy volunteers. The study will be consist of two parts: Part A will focus on intravenous dosing and Part B will directly compare intravenous dosing with subcutaneous dosing.

Condition or disease Intervention/treatment Phase
Stroke Drug: Recombinant human tissue kallikrein Phase 1

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 36 participants
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: An Open Label, Phase 1b, Single CENTER, Ascending Dose Study TO ASSESS THE SAFETY AND TOLERABILITY of DM199 With a Comparative Pharmacokinetic Study of DM199 Administered Intravenously and a Bioavailability Assessment of Subcutaneous Administration of DM199 in Normal Healthy Subjects
Study Start Date : September 2016
Actual Primary Completion Date : March 2017
Actual Study Completion Date : March 2017

Arm Intervention/treatment
Experimental: Low dose (Part A)
Recombinant human tissue kallikrein
Drug: Recombinant human tissue kallikrein
Intravenous DM199
Other Name: DM199

Experimental: Medium low dose (Part A)
Recombinant human tissue kallikrein
Drug: Recombinant human tissue kallikrein
Intravenous DM199
Other Name: DM199

Experimental: Medium high dose (Part A)
Recombinant human tissue kallikrein
Drug: Recombinant human tissue kallikrein
Intravenous DM199
Other Name: DM199

Experimental: High dose (Part A)
Recombinant human tissue kallikrein
Drug: Recombinant human tissue kallikrein
Intravenous DM199
Other Name: DM199

Experimental: Subcutaneous (Part B)
Recombinant human tissue kallikrein
Drug: Recombinant human tissue kallikrein
Intravenous DM199
Other Name: DM199

Experimental: IV (Part B)
Recombinant human tissue kallikrein
Drug: Recombinant human tissue kallikrein
Intravenous DM199
Other Name: DM199




Primary Outcome Measures :
  1. Number of participants with treatment-related adverse events as assessed by CTCAE v4.0 [ Time Frame: 30 days ]
    Assessment of safety of intravenous dosing


Secondary Outcome Measures :
  1. Concentration of DM199 in plasma [ Time Frame: 3 days ]
    Assess plasma drug levels

  2. Concentration of bradykinin in plasma [ Time Frame: 3 days ]
    Assess drug associated biomarkers (e.g. plasma bradykinin levels)



Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 50 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  1. Male or female between 18 and 50 years of age (inclusive);
  2. Healthy with no clinically significant medical problems;
  3. BMI between 18 to 30 kg/m2 with a weight between 50 to 100 kg (both inclusive);
  4. No history of alcohol or drug abuse (Paracetamol, Barbiturates, Benzodiazepines, Cocaine, Methadone, Amphetamines, Methamphetamines, Opiates, Phencyclidine, Tetrahydrocannabinol (cannabis), Tricyclic Antidepressants). Subjects should be enrolled only after passing the urine drug screen (positive test for paracetamol will be allowed);
  5. Non-smokers or light smokers (Less than 5 cigarettes per day) by history and planned during the study;
  6. No history of significant allergic diathesis such as urticaria, angioedema or anaphylaxis;
  7. Receiving no chronic medications that affect blood pressure control, the bradykinin or angiotensin system including angiotensin-converting-enzyme inhibitors (ACEi) or angiotensin receptor blockers (ARB);
  8. Willing and able to sign written, informed consent.

Exclusion Criteria:

  1. Any significant past or current cardiac, pulmonary, hepatic, renal or other medical condition which in the opinion of the investigator would make participation of the subject in this study medically unsafe or compromise the accuracy of assessment of safety, pharmacokinetic and pharmacodynamic data of the study;
  2. Subjects who have abnormal safety labs outside the local lab ranges will be excluded at PI's discretion based on his/her assessment of clinical significance (can be repeated once at screening at PI's discretion);
  3. Subjects with past medical history of malignancy except basal cell or squamous cell carcinoma of the skin who have had curative surgical treatment and at least 6 months have elapsed since the procedure;
  4. A value outside the specified range of 90 mm Hg - 140 mm Hg for systolic blood pressure and 50 mm Hg - 90 mm Hg for diastolic blood pressure (both inclusive) at screening (can be repeated once at screening as per PI's discretion);
  5. Subjects using angiotensin-converting-enzyme inhibitors (ACEi) or angiotensin receptor blockers (ARB) to control blood pressure;
  6. History of clinically significant acute bacterial, viral, or fungal systemic infections in the last 4 weeks prior to screening;
  7. Clinical or laboratory evidence of an active infection at the time of screening;
  8. Known alpha 1-antitrypsin deficiency (α1-antitrypsin deficiency);
  9. Serological evidence of human immunodeficiency virus (HIV), hepatitis B surface antigen (HBsAg), or anti-hepatitis C virus (Anti-HCV) at screening;
  10. Vaccination within 3 months of screening for the study or requiring vaccination during the study or within 3 months after completion of the study;
  11. Females who are pregnant or nursing;
  12. Females of childbearing potential (i.e., any woman who is not surgically sterile e.g., hysterectomy, bilateral oophorectomy or >1-year postmenopause status confirmed by follicle-stimulating hormone (FSH) levels as defined by established lab ranges) and all men who, if participating in heterosexual sexual activity that could lead to pregnancy are unable or unwilling to practice medically effective contraception during the study. They should agree to use two reliable methods of contraception (e.g., double-barrier condom plus diaphragm, condom or diaphragm plus a stable dose of hormonal contraception) throughout the study period and until 3 months after receiving study drug. Women of childbearing potential will require compulsory pregnancy testing. A negative pregnancy test (serum and urine) will be documented during screening and at Day -1 respectively;
  13. Participation in any other drug study within 8 weeks or 5 half-lives of the study drug, whichever is longer;
  14. Unable or unwilling to comply with the protocol requirements for study visits and procedures;
  15. Subjects who do not have good venous access for infusion of study drug or for blood sampling;

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02868996


Locations
Australia, Western Australia
Linear Clinical Research
Perth, Western Australia, Australia
Sponsors and Collaborators
DiaMedica Therapeutics Inc
Novotech (Australia) Pty Limited

Additional Information:
Responsible Party: DiaMedica Therapeutics Inc
ClinicalTrials.gov Identifier: NCT02868996     History of Changes
Other Study ID Numbers: DM199-2016-001
First Posted: August 16, 2016    Key Record Dates
Last Update Posted: December 7, 2017
Last Verified: December 2017
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes

Additional relevant MeSH terms:
Kallikreins
Coagulants
Fertility Agents, Male
Fertility Agents
Reproductive Control Agents
Physiological Effects of Drugs