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Extension Study of IONIS-GHR-LRx Administered to Participants With Acromegaly Being Treated With Long-acting Somatostatin Receptor Ligands

An Open-Label Extension Trial of IONIS GHR-LRx, an Antisense Inhibitor of the Growth Hormone Receptor Administered Monthly Subcutaneously to Patients With Acromegaly Being Treated With Long-Acting Somatostatin Receptor Ligands (SRL)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03967249
Enrollment
39
Registered
2019-05-30
Start date
2019-07-25
Completion date
2022-07-07
Last updated
2023-03-22

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

Conditions

Acromegaly

Keywords

Acromegaly, IONIS-GHR-LRx

Brief summary

The purpose of this study is to assess the safety and efficacy of extended dosing with IONIS GHR-LRx in participants with acromegaly as add-on to somatostatin receptor ligands (SRL) therapy.

Detailed description

This extension study will include participants up to 60 participants with acromegaly from Study NCT03548415. All participants will remain on the same dose from the previous study and receive IONIS GHR-LRx (SC) injection once every 28 days as add-on to SRL therapy for 53 weeks. At the end of 53 weeks, participants will enter a 14-week post-treatment (PT) evaluation period.

Interventions

DRUGIONIS GHR-LRx

Participants will receive IONIS GHR-LRx by subcutaneous injection.

DRUGSomatostatin Receptor Ligand (SRL)

Participants will receive Somatostatin Receptor Ligand (lanreotide, octreotide) once monthly.

Sponsors

Ionis Pharmaceuticals, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Randomized in index trial (CS2) and completed the entire study, or completion of the treatment period for CS2 and completed or plan to complete PTWK5 visit with an acceptable safety profile, per investigator judgment * Participants with confirmed stable monthly regimen of SRL for 3 months prior to screening * Able and willing to participate in a 53-week treatment and 14-week post-treatment study

Exclusion criteria

* Treatment with any other acromegaly medications taken prior to Day 1 within the time period: bromocriptine: 2 weeks, carbergoline: 4 weeks, quinagolide: 4 weeks, pegvisomant: 4 weeks and pasireotide: 4 months * Participant who received surgery for pituitary adenoma in the last 3 months prior to screening and participants needing and/or planning to receive surgery for the pituitary adenoma during the trial * Unwilling to comply with required study procedures during the treatment and post-treatment periods

Design outcomes

Primary

MeasureTime frameDescription
The Incidence of Adverse EventsUp to approximately 16 monthsIncidence of adverse events (AEs), serious AEs, treatment related AEs, AEs leading to withdrawal

Secondary

MeasureTime frame
Percent Change from Baselines in Insulin-like Growth Factor I (IGF-1) LevelsBaseline and at Week 26 and Week 53
Percentage of Participants who Achieve Normalized IGF-1 Levels to Within 1.2 Times of Gender and Age-Adjusted Upper LimitsWeek 26 and at 28 days after the Week 53 dose
Percentage of Participants who Achieve Normalized IGF-1 Levels to Within 1.0 Times of Gender and Age-Adjusted Upper LimitsWeek 26 and at 28 days after the Week 53 dose
Percentage of Participants who Begin Other Acromegaly MedicationUp to approximately 16 months
Time From First Dose of IONIS GHR-LRx in this open label extension (CS3) to Date of Initiation of Other Acromegaly MedicationsUp to approximately 16 months

Countries

Hungary, Lithuania, Poland, Russia, Serbia, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 11, 2026