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Randomized Controlled Trial
. 2017 Apr 12;18(1):174.
doi: 10.1186/s13063-017-1894-7.

PREDOMOS study, impact of a social intervention program for socially isolated elderly cancer patients: study protocol for a randomized controlled trial

Elodie Crétel-Durand  1   2 , Emilie Nouguerède  3   4 , Hervé Le Caer  5 , Frédérique Rousseau  2   6 , Frédérique Retornaz  2   7 , Olivier Guillem  2   8 , Anne-Laure Couderc  2   9 , Laurent Greillier  2   10 , Emmanuelle Norguet  2   11 , Maud Cécile  2   6 , Rabia Boulahssass  12 , Francoise Le Caer  13 , Sandrine Tournier  2   14 , Chantal Butaud  2   15 , Pierre Guillet  2   15 , Sophie Nahon  2   16 , Laure Poudens  2   16 , Sylvie Kirscher  2   17 , Sandrine Loubière  18 , Nadine Diaz  19 , Jean Dhorne  20 , Pascal Auquier  18 , Karine Baumstarck  18
Affiliations
Randomized Controlled Trial

PREDOMOS study, impact of a social intervention program for socially isolated elderly cancer patients: study protocol for a randomized controlled trial

Elodie Crétel-Durand et al. Trials. .

Abstract

Background: Cancer incidence and social isolation increase along with advanced age, and social isolation potentiates the relative risk of death by cancer. Once spotted, social isolation can be averted with the intervention of a multidisciplinary team. Techniques of automation and remote assistance have already demonstrated their positive impact on falls prevention and quality of life (QoL), though little is known about their impact on socially isolated elderly patients supported for cancer. The primary objective of the PREDOMOS study is to evaluate the impact of establishing a Program of Social intervention associated with techniques of Domotic and Remote assistance (PS-DR) on the improvement of QoL of elderly isolated patients, treated for locally advanced or metastatic cancer. The secondary objectives include treatment failure, tolerance, survival, and autonomy.

Methods/design: This trial is a multicenter, prospective, randomized, placebo-controlled, open-label, two-parallel group study. The setting is 10 French oncogeriatric centers. Inclusion criteria are patients aged at least 70 years with a social isolation risk and a histological diagnosis of cancer, locally advanced or metastatic disease. The groups are (1) the control group, receiving usual care; (2) the experimental group, receiving usual care associating with monthly social assistance, domotic, and remote assistance. Participants are randomized in a 1:1 allocation ratio. Evaluation times involve inclusion (randomization) and follow-up (12 months). The primary endpoint is QoL at 3 months (via European Organization for Research and Treatment of Cancer (EORTC) QLQ C30); secondary endpoints are social isolation, time to treatment failure, toxicity, dose response-intensity, survival, autonomy, and QoL at 6 months. For the sample size, 320 individuals are required to obtain 90% power to detect a 10-point difference (standard deviation 25) in QoL score between the two groups (20% loss to follow-up patients expected).

Discussion: The randomized controlled design is the most appropriate design to demonstrate the efficacy of a new experimental strategy (Evidence-Based Medicine Working Group classification). National and international recommendations could be updated based on the findings of this study.

Trial registration: ClinicalTrials.gov, NCT02829762 . Registered on 29 June 2016.

Keywords: Elderly cancer; Oncogeriatrics; Randomized controlled trial; Social intervention program; Techniques for domotic and remote assistance.

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