REgistry-based Treatment Duration and Mortality in Long-term OXygen Therapy (REDOX)

Summary

Multicenter, phase IV, non-superiority, registry-based, randomized controlled trial. Patients starting long-term oxygen therapy (LTOT) are randomized between LTOT prescribed 24 h/day or 15 h/day using the Swedish Register for Respiratory Failure (Swedevox). Clinical follow-up and concurrent treatments are according to routine clinical practice. The main endpoints of mortality, hospitalizations, and incident disease are assessed using Swedish registry data, with expected complete follow-up. Patient-reported outcomes are assessed using a posted questionnaire at 3 and 12 months. The study is managed by the Uppsala Clinical Research Centre (UCR).

Timeline

Start

2018-05-16

Primary completion

2022-04-04

Completion

2023-04-04

Publications

• Background Continuous or nocturnal oxygen therapy in hypoxemic chronic obstructive lung disease: a clinical trial. Nocturnal Oxygen Therapy Trial Group. Ann Intern Med. 1980 Sep;93(3):391-8. doi: 10.7326/0003-4819-93-3-391.
• Background Long term domiciliary oxygen therapy in chronic hypoxic cor pulmonale complicating chronic bronchitis and emphysema. Report of the Medical Research Council Working Party. Lancet. 1981 Mar 28;1(8222):681-6.
• Background Anthonisen NR. Prognosis in chronic obstructive pulmonary disease: results from multicenter clinical trials. Am Rev Respir Dis. 1989 Sep;140(3 Pt 2):S95-9. doi: 10.1164/ajrccm/140.3_Pt_2.S95. No abstract available.
• Background Hardinge M, Annandale J, Bourne S, Cooper B, Evans A, Freeman D, Green A, Hippolyte S, Knowles V, MacNee W, McDonnell L, Pye K, Suntharalingam J, Vora V, Wilkinson T; British Thoracic Society Home Oxygen Guideline Development Group; British Thoracic Society Standards of Care Committee. British Thoracic Society guidelines for home oxygen use in adults. Thorax. 2015 Jun;70 Suppl 1:i1-43. doi: 10.1136/thoraxjnl-2015-206865.
• Ekstrom M, Andersson A, Papadopoulos S, Kipper T, Pedersen B, Kricka O, Sobrino P, Runold M, Palm A, Blomberg A, Hamed R, Lindberg E, Sundberg B, Hadziosmanovic N, Bjorklund F, Janson C, McDonald CF, Currow DC, Sundh J; REDOX Collaborative Research Group. Long-Term Oxygen Therapy for 24 or 15 Hours per Day in Severe Hypoxemia. N Engl J Med. 2024 Sep 19;391(11):977-988. doi: 10.1056/NEJMoa2402638. Epub 2024 Sep 10.
• Sundh J, Bornefalk-Hermansson A, Ahmadi Z, Blomberg A, Janson C, Currow DC, McDonald CF, McCaffrey N, Ekstrom M. REgistry-based randomized controlled trial of treatment and Duration and mortality in long-term OXygen therapy (REDOX) study protocol. BMC Pulm Med. 2019 Feb 26;19(1):50. doi: 10.1186/s12890-019-0809-7.

Drugs

Indications