New hope for kidney disease: first human trial of PYC-003 begins
NCT ID NCT06714006
First seen Jun 27, 2026 · Last updated Jul 28, 2026 · Updated 2 times
Summary
This study is the first time a new drug called PYC-003 is being tested in humans. It is for people with a genetic kidney disease that causes cysts to grow and damage the kidneys. The trial will first test the drug in healthy volunteers to check safety, then in patients with the disease. The main goal is to see if the drug is safe and how the body processes it.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- PYC-003 (a peptide attached to a synthetic DNA-like molecule)
- What this could lead to
- If this early trial shows the drug is safe, it could pave the way for a treatment that slows or stops kidney cysts from growing in people with ADPKD.
- What could go wrong
- This is a very early Phase 1 study, so the main goal is just to check safety. It is too soon to know if the drug will actually help the disease, and side effects are possible.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 166 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Apr 2025
- Expected to finish
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Nov 2028
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Part A (SAD - Healthy Volunteers) Key Inclusion Criteria 1. Adult aged 18 to 60 years (inclusive) 2. At the discretion of the PI or designee, in good general health, with no significant medical history, and have no clinically significant abnormalities on physical examination at Screening 3. BMI ≥ 18.0 and ≤ 32.0 kg/m2 and weight ≥ 50 kg. 4. Non-smoker and must not have used any tobacco or nicotine products within 2 months prior to Screening. 5. Clinical laboratory values within normal range or deemed not clinically significant by the PI 6. eGFR ≥ 80 mL/min/1.73 m2 via the Chronic Kidney Disease Epidemiology Collaboration (CKD EPI) 2021 calculation 7. Woman of childbearing potential (WOBCP) must agree to use an acceptable, highly effective, double barrier method of contraception from the start of Screening until study completion. 8. Males must be surgically sterile (vasectomized for at least 6 months prior to first IP administration) or, if engaged in sexual relations with a WOCBP, must agree to use an acceptable, highly effective, double barrier method of contraception from the start of Screening until study completion. 9. Females must agree not to donate ova from the first administration of IP until 30 days following study completion. 10. Males must agree not donate sperm from the first administration of IP until 90 days following study completion. 11. Able and willing to attend the necessary visits to the study site. 12. Able and willing to adhere to caffeine, alcohol, and nicotine-containing product restrictions 13. Able and willing to provide written informed consent after the nature of the study has been explained and prior to the commencement of any study procedures. Part A (SAD - Healthy Volunteers) Key Exclusion Criteria 1. Females who are pregnant, breastfeeding, or plan to become pregnant during the course of the study. 2. Underlying physical or psychological medical condition that, in the opinion of the PI or designee, would make the participant unlikely to comply with the protocol or complete the study per protocol. 3. Has only 1 kidney or has received a kidney transplant. 4. Blood donation or had significant blood loss (\> 500 mL) within 30 days prior to the first administration of IP. 5. Plasma donation within 7 days prior to the first administration of IP. 6. Fever (body temperature \> 38°C) or symptomatic viral or bacterial infection within 2 weeks prior to first administration of IP. 7. Infections requiring parenteral antibiotics within 6 months prior to Screening. 8. Positive test for hepatitis C antibody (HCV), hepatitis B surface antigen (HBsAg), HIV antibody. 9. History of life-threatening infection (e.g., meningitis). 10. Vaccination with a live vaccine within 4 weeks prior to the first administration of IP. 11. Poor venous access. 12. History of severe allergic or anaphylactic reactions, or sensitivity to the IP or its constituents. 13. History of malignancy, except for non-melanoma skin cancer excised more than 1 year prior to Screening and cervical intraepithelial neoplasia that has been successfully cured more than 2 years prior to Screening. 14. Abnormal electrocardiogram (ECG) findings at Screening, Day -3 to Day -1, or predose that are considered by the PI or designee to be clinically significant. 15. History or presence of a condition associated with significant immunosuppression. 16. Exposure to any drugs that cause significant immunosuppression (including experimental therapies as part of a clinical study) within 4 months or 5 half-lives (whichever is longer), prior to Screening. 17. ALP, AST, and ALT \> 1.5 × ULN at Screening or Day -3 to Day -1. 18. History of borderline to low blood magnesium and potassium levels and/or Screening or Day -3 to Day -1 blood magnesium level \< 0.7 mmol/L and potassium levels \< 3.5 mmol/L. 19. Active infection of the urinary tract (ie, kidney, bladder). 20. Positive toxicology screening panel (urine test including qualitative identification of amphetamines, barbiturates, benzodiazepines, cocaine, methamphetamine, methadone, opiates, phencyclidine, tetrahydrocannabinol \[THC\], tricyclic antidepressants), or alcohol breath test. 21. History of substance abuse or dependency or history of recreational IV drug use over the last 5 years (by self-declaration). 22. Regular alcohol consumption defined as \> 14 standard drinks per week for females and \> 21 standard drinks for males (where 1 standard drink = 375 mL of mid-strength beer \[3.5% alcohol/volume\], 100 mL wine \[13.5% alcohol/volume\] or 30 mL of spirits \[40% alcohol/volume\]) or \> 4 standard drinks on any single day. 23. Unwilling to abstain from alcohol for 48 hours prior to admission to the study site and for 48 hours prior to any follow-up visits. 24. Use of any investigational medical device or investigational drug within 30 days or 5 half-lives of the investigational drug (whichever is longer) prior to the first administration of IP. 25. Use of (or anticipated use of) the following: 1. Any prescription drugs (other than hormonal contraception; oral contraceptive pills, long-acting implantable hormones, injectable hormones, a vaginal ring, or an intrauterine device \[IUD\]) within 14 days prior to the first administration of IP and during the course of the study without prior approval of the PI and MM. 2. Any over-the-counter medication, herbal remedies, supplements or vitamins within 7 days prior to the first administration of IP and during the course of the study without prior approval of the PI and MM. Note: Paracetamol (i.e., up to 2000 mg per day) may be used for minor ailments during the study, at the discretion of the PI, without prior consultation with the MM. 26. Unwilling to refrain from strenuous exercise (including weightlifting) for 48 hours prior to admission to the study site and for 48 hours prior to any follow-up visits. 27. Anything that the PI considers would jeopardize the safety of the participant, prevent complete participation in the study, or compromise interpretation of study data. Part B and Part C (ADPKD Participants) Key Inclusion Criteria 1. Male or female aged 18 to 65 years (inclusive) at the time of informed consent. 2. ADPKD diagnosis as confirmed by the presence of genetic mutations associated with ADPKD, including, but not limited to, the presence of PKD1 mutation. Note: Where genotyping is not included the medical history for a participant, genotyping may be completed at Pre-Screening. 3. Class 1C, 1D, or 1E per Mayo Imaging Classification System for Predicting Kidney Outcomes in ADPKD (Irazabal et al. 2015) (based upon prior magnetic resonance imaging \[MRI\] or computed tomography \[CT\] scan obtained prior to Screening, or MRI obtained during Pre-Screening). 4. BMI ≥ 18.0 and ≤ 35.0 kg/m2 and weight ≥ 50 kg. 5. Non-smoker and must not have used any tobacco or nicotine products within 2 months prior to Screening. 6. Estimated glomerular filtration rate (eGFR) ≥ 30 mL/min/1.73 m2 via the CKD EPI 2021 calculation 8\. Hematology and serum chemistry results at Screening that meet the following criteria: 1. Platelets \> 150 × 10\^9/L 2. Total white blood cell count \> 3.0 × 10\^9/L 3. Absolute neutrophil count \> 1.5 × 10\^9/L 4. Hemoglobin \> 110 g/L for females and \> 120 g/L for males 5. Total and direct bilirubin \< 1.5 × ULN, unless elevated bilirubin is associated with a known benign condition (e.g., Gilbert's syndrome) 6. Alanine aminotransferase (ALT) \< 1.5 × ULN 7. Aspartate aminotransferase (AST) \< 1.5 × ULN 8. Alkaline phosphatase (ALP) \< 1.5 × ULN 9. Gamma-glutamyl transferase \< 2 × ULN 9.WOCBP must agree to use an acceptable, highly effective, double barrier method of contraception from the start of Screening until study completion 10\. Males must be surgically sterile (vasectomized for at least 6 months prior to first administration of IP) or, if engaged in sexual relations with a WOCBP, must agree to use an acceptable, highly effective, double barrier method of contraception from the start of Screening until study completion 11\. Females must agree not to donate ova from the first administration of IP until 30 days following study completion. 12.Males must agree not donate sperm from the first administration of IP until 90 days following study completion. 13\. Able and willing to attend the necessary visits to the study site. 14\. Able and willing to adhere to alcohol and nicotine-containing product restrictions 15\. Able and willing to provide written informed consent after the nature of the study has been explained and prior to the commencement of any study procedures. Part B and Part C (ADPKD Participant) Key Exclusion Criteria 1. Females who are pregnant, breastfeeding, or plan to become pregnant during the course of the study. 2. Presence of potentially confounding genetic mutations (per genotyping by a NATA accredited or equivalent diagnostic laboratory)including, but not limited to, the presence of PKD2, HNF1B, GANAB, IFT140, and/or DNAJB 11 mutations. 3. Use of (or anticipated use of) Tolvaptan and/or metformin administration within 30 days prior to the first administration of IP until study completion. 4. Underlying physical or psychological medical condition that, in the opinion of the PI or designee, would make the participant unlikely to comply with the protocol or complete the study per protocol. 5. Any renal or systemic pathology other than ADPKD or any other condition or prior therapy that in the opinion of the PI or designee would make the participant unsuitable for this study. 6. Has only 1 kidney or has a kidney transplant. 7. Blood donation or had significant blood loss (\> 500 mL) within 30 days prior to the first administration of IP. 8. Plasma donation within 7 days prior to the first administration of IP. 9. Has received (or is anticipated to receive) cell therapy, gene therapy, or RNA therapy for any renal condition. 10. Fever (body temperature \> 38°C) or symptomatic viral or bacterial infection within 2 weeks prior to first administration of IP. 11. Infections requiring parenteral antibiotics within 6 months prior to Screening. 12. Positive test for hepatitis C antibody (HCV), hepatitis B surface antigen (HBsAg), HIV antibody. 13. History of life-threatening infection (e.g., meningitis). 14. Vaccination with a live vaccine within 4 weeks prior to the first administration of IP. 15. Poor venous access. 16. History of severe allergic or anaphylactic reactions, or sensitivity to the IP or its constituents. 17. History of malignancy, except for non-melanoma skin cancer excised more than 1 year prior to Screening and cervical intraepithelial neoplasia that has been successfully cured more than 2 years prior to Screening. 18. Abnormal ECG findings at Screening, Day -3 to Day -1, or predose that are considered by the PI or designee to be clinically significant. 19. Abnormal vital signs findings at Screening that are considered by the PI or designee to be clinically significant. Note: A hypertensive participant is eligible if on a stable antihypertensive regimen for ≥ 28 days prior to first administration of IP and the blood pressure adequately controlled (per PI discretion) prior to first administration of IP. 20. History or presence of a condition associated with significant immunosuppression. 21. Exposure to any drugs that cause significant immunosuppression (including experimental therapies as part of a clinical study) within 4 months or 5 half-lives (whichever is longer), prior to Screening. 22. History of borderline to low blood magnesium and potassium levels and/or Screening or Day -3 to Day -1 blood magnesium level \< 0.7 mmol/L and potassium levels \< 3.5 mmol/L. 23. Urine protein: creatinine ratio (UPCR) of \> 50 mg/mmol. 24. Hematuria (urine protein: creatinine ratio \> 30 mg/mmoL, or hematuria \> ++ on dipstick, or \> 100 cells per high-power field on microscopy) and/or urinary abnormalities at Screening deemed by the PI or designee to be of moderate or higher severity. 25. Renal complications (eg, cyst rupture or cyst infections) within 6 weeks prior to first administration of IP. 26. Active infection of the urinary tract (ie, kidney, bladder). 27. Positive toxicology screening panel (urine test including qualitative identification of amphetamines, barbiturates, benzodiazepines, cocaine, methamphetamine, methadone, opiates, phencyclidine, tetrahydrocannabinol \[THC\], tricyclic antidepressants), or alcohol breath test. 28. History of substance abuse or dependency or history of recreational IV drug use over the last 5 years (by self-declaration). 29. Regular alcohol consumption defined as \> 14 standard drinks per week for females and \> 21 standard drinks for males (where 1 standard drink = 375 mL of mid-strength beer \[3.5% alcohol/volume\], 100 mL wine \[13.5% alcohol/volume\] or 30 mL of spirits \[40% alcohol/volume\]) or \> 4 standard drinks on any single day. 30. Unwilling to abstain from alcohol for 48 hours prior to admission to the study site and for 48 hours prior to any follow-up visits. 31. Use of any investigational medical device or investigational drug within 30 days or 5 half-lives of the investigational drug (whichever is longer) prior to the first administration of IP. 32. Unwilling to refrain from strenuous exercise (including weightlifting) for 48 hours prior to admission to the study site and for 48 hours prior to any follow-up visits. 33. Anything that the PI considers would jeopardize the safety of the participant, prevent complete participation in the study, or compromise interpretation of study data. Part D will be an extension study for participants that complete Part C.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The study's own enquiry address
This study publishes an address for enquiries. See it below .
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The places running it
12 sites in 3 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Show contact details
Enter your email to view the contact information for this study.
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Locations
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Concord Repatriation General Hospital
RECRUITINGConcord, New South Wales, 2139, Australia
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Linear Clinical Research
RECRUITINGJoondalup, Western Australia, 6027, Australia
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Liverpool Hospital, Clinic G-Reception 133, Level 1, Clinical Building, Burnside Drive
RECRUITINGLiverpool, New South Wales, 2170, Australia
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Mater Hospital Brisbane
RECRUITINGSouth Brisbane, Queensland, 4101, Australia
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Pacific Clinical Research Network Auckland
RECRUITINGTakapuna, Auckland, 0622, New Zealand
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Prince of Wales Hospital
RECRUITINGShatin, New Territories, Hong Kong
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Scientia Clinical Research
RECRUITINGRandwick, New South Wales, 2031, Australia
Contact Email: •••••@•••••
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South Coast Renal, Brockway House, Level 1, Suite 8, 82-86 Queen Street,
RECRUITINGSouthport, Gold Coast, 4125, Australia
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St Vincent's Hospital Melbourne
RECRUITINGFitzroy, Victoria, 3056, Australia
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Sunshine Hospital, Western Centre for Health Research and Education, Level 3, 176-190 Furlong Road
RECRUITINGSaint Albans, Victoria, 3021, Australia
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Sydney Adventist Hospital
RECRUITINGWahroonga, New South Wales, 2076, Australia
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Westmead Hospital, Clinical Research Unit, Level 6, B Wing/Building, Hawkesbury Road
RECRUITINGWestmead, New South Wales, 2145, Australia
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