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Completed No phase listed Observational Results available

: TRANSITION: An Observational Study of Transition From Lumacaftor/Ivacaftor to Tezacaftor/Ivacaftor (Tez/Iva)

ClinicalTrials.gov ID: NCT03445793

Public ClinicalTrials.gov record NCT03445793. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 1, 2026, 3:59 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

: TRANSITION: An Observational Study of the Effects on Sweat Chloride and Clinical Outcomes of Transition From Lumacaftor/Ivacaftor to Tezacaftor/Ivacaftor (Tez/Iva)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This study is a single center study of clinical and laboratory outcomes in patients ≥ 12 who transition from use of Orkambi to tez/iva. Clinical and laboratory measurements will be measured at baseline, 1 month, 3 months, and 6 months after initiation of tez/iva. Change from baseline at 6 months pre-specified will be reported. The length of study participation will be approximately 6 months.

Study identification

NCT ID
NCT03445793
Recruitment status
Completed
Study type
Observational
Phase
Not listed
Lead sponsor
National Jewish Health
Other
Enrollment
5 participants

Conditions and interventions

Interventions

Not listed

Eligibility (public fields only)

Age range
12 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Feb 28, 2018
Primary completion
Oct 31, 2019
Completion
Oct 31, 2019
Last update posted
Jan 22, 2024

2018 – 2019

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
National Jewish Heatlh Denver Colorado 80206

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03445793, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jan 22, 2024 · Synced Sep 1, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03445793 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →