Skip to content

Rapamycin as Treatment for Autosomal Dominant Polycystic Kidney Disease (ADPKD): The Role of Biomarkers in Predicting a Response to Therapy

Rapamycin as Treatment for ADPKD: The Role of Biomarkers in Predicting a Response to Therapy

Status
Terminated
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00920309
Enrollment
21
Registered
2009-06-15
Start date
2009-06-30
Completion date
2010-07-31
Last updated
2014-04-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Autosomal Dominant Polycystic Kidney Disease

Keywords

Autosomal Dominant Polycystic Kidney Disease, rapamycin, ADPKD

Brief summary

Currently the only approved use for rapamycin (sirolimus) is for immunosuppression after renal transplantation. This trial is designed to determine whether rapamycin is safe and effective treatment for patients with polycystic kidney disease (ADPKD). Patients will be followed by volumetric magnetic resonance imaging (MRI) to observe for change in kidney (and cyst) size. Blood and urine samples will also be collected to evaluate for change in biomarkers with treatment.

Detailed description

This is a 2 year, open label trial to evaluate the role of rapamycin as treatment for ADPKD. Patients will be randomized 2:1 to the rapamycin arm or to standard therapy. The dose of rapamycin will be adjusted so that patients obtain 24 trough levels of 4-6ng/ml. There will be a volumetric MRI measurement at the start and end of the treatment period. Patients will be monitored every 4 months throughout the study.

Interventions

DRUGRapamycin

The starting dose of rapamycin will be 1 mg daily. The dose will be increased as needed to achieve a 24 hour trough level of 4-6 ng/ml.

OTHERStandard of Care-Placebo

Sponsors

Yale University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes

Inclusion criteria

* adult ADPKD patients aged 18-70 * combined kidney volume \>1200 ml * estimated creatinine clearance \>60 ml/min * absence of implanted ferromagnetic objects

Exclusion criteria

* Age \>70 * uncontrolled hyperlipidemia * Proteinuria \>500 mg/day * unstable cerebral aneurysm * active coronary artery disease * diagnosis of another systemic condition affecting kidney function (ie: diabetes, hepatitis B or C, HIV) * diagnosis of cancer other than skin cancer * pregnancy or lactation * presence of implanted ferromagnetic objects

Design outcomes

Primary

MeasureTime frame
Total Kidney Volume (mL)2 years

Secondary

MeasureTime frame
Glomerular Filtration Rate (Kidney Function)2 years

Countries

United States

Participant flow

Participants by arm

ArmCount
Rapamycin
Drug: Rapamycin Other Names: sirolimus The starting dose of rapamycin will be 1 mg daily. The dose will be increased as needed to achieve a 24 hour trough level of 4-6 ng/ml.
14
Standard of Care-Placebo7
Total21

Baseline characteristics

CharacteristicRapamycinStandard of Care-PlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
1 Participants0 Participants1 Participants
Age, Categorical
Between 18 and 65 years
13 Participants7 Participants20 Participants
Sex: Female, Male
Female
5 Participants2 Participants7 Participants
Sex: Female, Male
Male
9 Participants5 Participants14 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
14 / 140 / 7
serious
Total, serious adverse events
3 / 140 / 7

Outcome results

Primary

Total Kidney Volume (mL)

Time frame: 2 years

Population: Outcome Measures were not analyzed due to study termination

Secondary

Glomerular Filtration Rate (Kidney Function)

Time frame: 2 years

Population: Outcome measures were not analyzed due to study termination

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026