Elexacaftor + ivacaftor + tezacaftor

Unassigned

New Medicines

Kaftrio [EU], Trikafta [US] · Cystic fibrosis in patients aged 12 years and older who are heterozygous for F508del mutation and a minimal function mutation, or homozygous for F508del mutation

Information

Kaftrio [EU], Trikafta [US]
New formulation
Vertex
Vertex

Development and Regulatory status

Launched
Launched
Launched
August 2020
Sep 20 · Price:75mg/50mg/100mg x 56=£8346.30 (hospital only). Adult dosage is 150mg/100mg/200mg in the morning plus ivacaftor 150mg in the evening [19].
Aug 20 · Available in the UK [18].
Aug 20 · Approved in EU [17].
Jun 20 · NHS England announce a four year deal with Vertex which will allow patients with cystic fibrosis to have access to Kaftrio (ivacaftor/tezacaftor/elexacaftor) as soon as a licence is granted by the European Medicines Agency [16].
Jun 20 · Recommended for EU approval by CHMP - the full indication is "in a combination regimen with ivacaftor 150 mg tablets for the treatment of cystic fibrosis (CF) in patients aged 12 years and older who are homozygous for the F508del mutation in the cystic fibrosis transmembrane conductance regulator (CFTR) gene or heterozygous for F508del in the CFTR gene with a minimal function (MF) mutation." It is proposed that the medicine is prescribed by physicians experienced in the treatment of cystic fibrosis [15].
Jan 20 · Launched in the US [13].
Nov 19 · Filed in EU under centralised procedure. Application is being reviewed under EMA´s accelerated assessment programme [12].
Oct 19 · Approved in US [9]
Aug 19 · Granted priority review in US with a target action date of 19/03/20 [8].
Aug 19 · NDA filed in US, with a request for priority review [7].
Jun 19 · Vertex plans to submit a New Drug Application (NDA) to the U.S. Food and Drug Administration (FDA) in the third quarter of 2019 and a Marketing Authorization Application (MAA) to the European Medicines Agency (EMA) in the fourth quarter of 2019 [6].
Mar 19 · The company is planning to submit global regulatory approval applications later in 2019 [5].
Jan 19 · Initially VX-445 was developed as a single regimen and based on the positive data from the combination trials with ivacaftor and tezacaftor, Vertex is developing this fixed-dose combination [3].

Category

Fixed-dose combination of VX-445 with ivacaftor & tezacaftor. VX-445 is a fourth next-generation corrector of CF transmembrane conductance regulator, which enhances the number of channels of the CFTR protein at the cell membrane.
CF is the most common inherited disease in white populations. Prevalence is 1 in 2,500 newborn infants, with calculated carrier frequency of 1 in 25. Just over 10,000 people were recorded as having CF in the 2013 UK CF Registry [1].
Cystic fibrosis in patients aged 12 years and older who are heterozygous for F508del mutation and a minimal function mutation, or homozygous for F508del mutation
Oral

Further information

Yes
To be confirmed

Trial or other data

Nov 19 · RCT (NCT03525548; n=113) is published; it found elexacaftor plus tezacaftor plus ivacaftor, provided a clinically significant benefit to forced expiratory volume compared to tezacaftor plus ivacaftor alone (treatment difference 10.0%; 95% CI 7.4 to 12.6, p<0.0001), with a favourable safety profile [11].
Nov 19 · RCT (NCT03525444; n=403) is published; it found elexacaftor–tezacaftor–ivacaftor, relative to placebo, improved forced expiratory volume by 14.3% and reduced rate of pulmonary exacerbations by 63% at 24 weeks (p<0.001 for all comparisons versus placebo) [10].
Jun 19 · Results from 24-week PIII study in people with one F508del mutation and one minimal function mutation and from a 4-week PIII study in people with two F508del mutations met their primary endpoints. Vertex PIII program for the VX-445 regimen consists of two randomized, double-blind trials in patients with CF caused by one F508del plus one minimal function mutation (NCT03525444) or by two F508 del mutations (NCT03525548) [6].
Mar 19 · Interim analysis from two PIII trials looking at triple therapy with VX-445, tezacaftor and ivacaftor in patients with late-stage CF demonstrated the combination improved percent predicted FEV1 (ppFEV1). In the trial where enrolled patients had one F508del mutation and one minimal function mutation, mean absolute improvement in ppFEV1 of 13.8% from baseline at 4 weeks. In the trial where patients had two F508del mutations, ppFEV1 improved by 10 percentage points from baseline at week 4. The combination was reported to be well-tolerated [5].
Jan 19 · PIII study (NCT03525574) to evaluate the long-term safety and tolerability of VX-445 in triple combination (TC) with tezacaftor (TEZ) and ivacaftor (IVA) in subjects with cystic fibrosis (CF) who are homozygous or heterozygous for the F508del mutation starts enrolling by invitation. 460 patients will be enrolled and collection of primary outcome data is due to complete Jun 21 [2].
Jan 19 · Results of PII dose-ranging study (NCT03227471) show 4 weeks of triple therapy with single-agent VX-445 (added to existing tezacaftor–ivacaftor) in those with Phe508del–Phe508del genotype, increased predicted percentage FEV1 by 11.0-13.8% [4].
Jan 19 · PIII trial to evaluate a triple combination regimen of VX 445, ivacaftor and tezacaftor in patients ages 12 years and older with CF who have two copies of the F508del mutation (homozygous) starts (NCT03525548). The primary endpoint of the study is the mean absolute change in lung function (ppFEV1) from baseline at week four of of triple combination treatment compared to triple placebo. The study is designed to support the submission of an NDA based on data from the 4-week primary efficacy analysis and on safety data through 24 weeks of treatment. 113 patients will be recruited in the US & EU. Collection of primary outcome data is due to complete Mar 19 [2].
Jan 19 · PIII trial to evaluate a triple combination regimen of VX 445, ivacaftor and tezacaftor in patients ages 12 years and older with CF who have one copy of the F508del mutation (heterozygous) and one minimal function mutation starts (NCT03525444). The primary endpoint of the study is the mean absolute change in lung function (ppFEV1) from baseline at week four of triple combination treatment compared to triple placebo. The study is designed to support the submission of an NDA based on data from the 4-week primary efficacy analysis and on safety data through 12 weeks of treatment. 405 patients will be recruited from countries around the world including the US & EU (plus UK). Collection of primary outcome data is due to complete Aug 19 [2].

Evidence based evaluations

Trikafta · Cystic fibrosis in patients aged 6-11 years who are heterozygous for F508del mutation and a minimal function mutation, or homozygous for F508del mutation

Information

Trikafta
Licence extension / variation
Vertex
Vertex

Development and Regulatory status

Phase III Clinical Trials
Phase III Clinical Trials
Phase III Clinical Trials

Category

Fixed-dose combination of VX-445 with ivacaftor & tezacaftor. VX-445 is a fourth next-generation corrector of CF transmembrane conductance regulator, which enhances the number of channels of the CFTR protein at the cell membrane.
CF is the most common inherited disease in white populations. Prevalence is 1 in 2,500 newborn infants, with calculated carrier frequency of 1 in 25. Just over 10,000 people were recorded as having CF in the 2013 UK CF Registry [1].
Cystic fibrosis in patients aged 6-11 years who are heterozygous for F508del mutation and a minimal function mutation, or homozygous for F508del mutation
Oral

Evidence based evaluations