Evaluation of Long-term Safety and Efficacy of ELX/TEZ/IVA TC Combination Therapy in Participants With Cystic Fibrosis Who Are 6 Years of Age and Older

Vertex Pharmaceuticals

Status and phase: Completed; Phase 3

Conditions: Cystic Fibrosis

Treatments: Drug: ELX/TEZ/IVA; Drug: IVA

Study type: Interventional

Funder types: Industry

Identifiers

NCT04183790

2019-001827-11 (EudraCT Number)

VX19-445-107

Details and patient eligibility

About

The study evaluates the long-term safety, tolerability, efficacy, and pharmacodynamics of elexacaftor (ELX, VX-445) in triple combination (TC) with tezacaftor (TEZ) and ivacaftor (IVA) in participants with cystic fibrosis (CF).

Enrollment: 64 patients

Sex: All

Ages: 6+ years old

Volunteers: No Healthy Volunteers

Inclusion and exclusion criteria

Key Inclusion Criteria:

• Completed study drug treatment in parent study (VX18-445-106 Part B, NCT03691779), or had study drug interruption(s) in parent study but completed study visits up to the last scheduled visit of the Treatment Period in the parent study

Key Exclusion Criteria:

• History of study drug intolerance in parent study

Other protocol defined Inclusion/Exclusion criteria may apply.

Trial design

Primary purpose: Treatment

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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64 participants in 1 patient group

ELX/TEZ/IVA

Experimental group

Description:

Participants greater than or equal to (≥) 6 years and less than (\<) 12 years of age and weighing \<30 kilograms (kg) received ELX (elexacaftor) 100 milligram (mg) once daily (qd) /TEZ (tezacaftor) 50 mg qd/IVA (ivacaftor) 75 mg every 12 hours (q12h) and those weighing (≥) 30 kg received ELX 200 mg qd/TEZ 100 mg qd/IVA 150 mg in the treatment period for up to 192 weeks. Participants ≥12 years of age received ELX 200 mg qd/ TEZ 100 mg qd/IVA 150 mg q12h in the treatment period for up to 192 weeks.

Treatment:

Drug: IVA

Drug: ELX/TEZ/IVA