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ANCHOR Study: A Study to Assess the Safety and Efficacy of ABBV-CLS-628 in Adult Participants With Autosomal Dominant Polycystic Kidney Disease (ADPKD)

A Phase 2, Multicenter, Randomized, Double-blind, Placebo-controlled Study to Evaluate the Safety and Efficacy of ABBV-CLS-628 in Adult Subjects With Autosomal Dominant Polycystic Kidney Disease (ADPKD)

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06902558
Acronym
ANCHOR
Enrollment
240
Registered
2025-03-30
Start date
2025-06-09
Completion date
2029-08-01
Last updated
2026-09-01

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 (ADPKD), ABBV-CLS-628

Brief summary

Autosomal Dominant Polycystic Kidney Disease (ADPKD) is the most common genetic cause of kidney disease that causes fluid-filled cysts to develop in the kidneys. The purpose of this study is to assess the safety and efficacy of ABBV-CLS-628 for the treatment of ADPKD in adult participants. ABBV-CLS-628 is an investigational drug being developed for the treatment of ADPKD. Participants are placed in 1 of 4 groups, called treatment arms. Each group receives a different treatment. There is a 1 in 4 chance that participants will be assigned to placebo. Around 240 adult participants with ADPKD will be enrolled at approximately 100 sites worldwide. Participants will receive IntraVenous ABBV-CLS-628 or placebo every 4 weeks for 92 weeks. Participants will be followed for up to 15 weeks. There may be higher treatment burden for participants in this trial compared to their standard of care . Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.

Interventions

IntraVenous Infusion

DRUGPlacebo

IntraVenous Infusion

Sponsors

Calico Life Sciences LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
No

Inclusion criteria

* Autosomal Dominant Polycystic Kidney Disease (ADPKD) Class 1C, 1D, or 1E based on the Mayo Clinic Imaging Classification of ADPKD. * Estimated glomerular filtration rate (eGFR) \>= 30 mL/min/1.73 m\^2 and \< 90 mL/min/1.73 m\^2, using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation at Screening.

Exclusion criteria

* Current interventions to treat ADPKD such as non-approved medications or lifestyle modifications. * Any exclusionary medical diseases, disorders, or conditions as described in the protocol.

Design outcomes

Primary

MeasureTime frameDescription
Cumulative Rate of Change from Baseline in Total Kidney Volume (TKV)Week 96TKV will be determined from manual contours of the kidneys on 3D magnetic resonance imaging (MRI), performed by imaging specialists and verified by independent radiologists with expertise in Autosomal Dominant Polycystic Kidney Disease (ADPKD).
Number of Participants with Adverse Events (AEs)Up to approximately 118 weeksAn AE is defined as any untoward medical occurrence in a patient or clinical investigation in which a participant is administered a pharmaceutical product which does not necessarily have a causal relationship with this treatment.

Secondary

MeasureTime frameDescription
Absolute Change in Estimated Glomerular Filtration Rate (eGFR) From BaselineWeek 96eGFR will be measured using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) Creatinine equation (2021) and CKD-EPI Creatinine-Cystatin equation (2021).
Cumulative Rate of Change from Baseline in Total Kidney Volume (TKV)Week 48TKV will be determined from manual contours of the kidneys on 3D magnetic resonance imaging (MRI), performed by imaging specialists and verified by independent radiologists with expertise in Autosomal Dominant Polycystic Kidney Disease (ADPKD).
Absolute Change in eGFR From BaselineWeek 48eGFR will be measured using the CKD-EPI Creatinine equation (2021) and CKD-EPI Creatinine-Cystatin equation (2021).
Time From Randomization to the First Occurrence of Clinical Progression to End-Stage Kidney Disease (ESKD) or >= 40% Decline in eGFRUp to Week 96Defined as initiation of renal replacement therapy (RRT) or kidney transplantation, or a confirmed decline in eGFR of 40% or more from baseline, sustained for at least 4 weeks.

Countries

Australia, Belgium, Canada, France, Germany, Italy, Japan, Netherlands, Portugal, South Korea, Spain, United States

Contacts

CONTACTCalico Clinical Trial Communication
clinicaltrialcommunication@calicolabs.com650-754-6200
STUDY_DIRECTORStudy Director

Calico Life Sciences LLC

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 2, 2026