Long-term Safety of Lumacaftor/Ivacaftor in Subjects With Cystic Fibrosis Who Are Homozygous for F508del and 12 to <24 Months of Age at Treatment Initiation
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT04235140 |
Recruitment Status :
Active, not recruiting
First Posted : January 21, 2020
Last Update Posted : December 1, 2022
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Condition or disease | Intervention/treatment | Phase |
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Cystic Fibrosis | Drug: LUM/IVA | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 52 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Phase 3, Open-label, and Rollover Study to Evaluate the Long-term Safety and Tolerability of Lumacaftor/Ivacaftor Treatment in Subjects With Cystic Fibrosis Who Are Homozygous for F508del and 12 to <24 Months of Age at Treatment Initiation |
Actual Study Start Date : | February 24, 2020 |
Estimated Primary Completion Date : | February 2024 |
Estimated Study Completion Date : | February 2024 |

Arm | Intervention/treatment |
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Experimental: LUM/IVA
Subjects will receive LUM/IVA for 96 weeks.
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Drug: LUM/IVA
LUM/IVA granules for oral administration
Other Names:
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- Safety and tolerability as assessed by the number of adverse events (AEs) and serious adverse events (SAEs) [ Time Frame: Up to 120 weeks ]
- Absolute change in sweat chloride [ Time Frame: From Baseline at Week 96 ]

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Ages Eligible for Study: | 12 Months and older (Child, Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Key Inclusion Criteria:
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Subjects From Study VX16-809-122 Part B (Study 122)
- Completed the 24-week Treatment Period and the Safety Follow-up Visit in Study 122B
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Subjects Not From Study 122
- Subjects will be 1 to less than 2 years of age
- Homozygous for the F508del mutation (F/F)
Key Exclusion Criteria:
- Any clinically significant laboratory abnormalities that would interfere with the study assessments or pose an undue risk for the subject
- Solid organ or hematological transplantation
Other protocol defined Inclusion/Exclusion criteria may apply.

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): NCT04235140

Responsible Party: | Vertex Pharmaceuticals Incorporated |
ClinicalTrials.gov Identifier: | NCT04235140 |
Other Study ID Numbers: |
VX19-809-124 |
First Posted: | January 21, 2020 Key Record Dates |
Last Update Posted: | December 1, 2022 |
Last Verified: | November 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Plan Description: | Details on Vertex data sharing criteria and process for requesting access can be found at: https://www.vrtx.com/independent research/clinical-trial-data-sharing. |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Cystic Fibrosis Fibrosis Pathologic Processes Pancreatic Diseases Digestive System Diseases Lung Diseases Respiratory Tract Diseases |
Genetic Diseases, Inborn Infant, Newborn, Diseases Ivacaftor Chloride Channel Agonists Membrane Transport Modulators Molecular Mechanisms of Pharmacological Action |