Trial Outcomes & Findings for Nutritional Support in Pressure Ulcer Patients (NCT NCT01107197)

NCT ID: NCT01107197

Last Updated: 2014-02-12

Results Overview

healing is defined as reduction in ulcer area (the percentage of change)

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

200 participants

Primary outcome timeframe

8 weeks of nutritional support (baseline and week 8)

Results posted on

2014-02-12

Participant Flow

Participants: patients (long-term care residents or subjects at home care services) with stage 2, 3 or 4 pressure ulcer. Estimated recruitment (sample size): 220 patients. Patients recruited and randomized to interventionas: 200 patients. The recruitment was stopped when at least 64 patients per treatment arm were available for analyses.

Participant milestones

Participant milestones
Measure
Isonitrogenous Isocaloric Formula
Patients were given standard diet plus 2 bottles/day (200 mL each; in 4 boluses \[100 mL each\] spread throughout the day) of an hypercaloric oral formula isonitrogenous isocaloric to the experimental one for 8 weeks Control formula : Isonitrogenous isocaloric oral formula
Enriched Nutrition Formula
Patients were given standard diet plus two bottles/day (400 mL) of an hypercaloric oral formula enriched in arginine, zinc and antioxidant oligoelements for 8 weeks Enriched nutrition formula : oral formula enriched in arginine, zinc and antioxidant oligoelements
Overall Study
STARTED
99
101
Overall Study
COMPLETED
79
78
Overall Study
NOT COMPLETED
20
23

Reasons for withdrawal

Reasons for withdrawal
Measure
Isonitrogenous Isocaloric Formula
Patients were given standard diet plus 2 bottles/day (200 mL each; in 4 boluses \[100 mL each\] spread throughout the day) of an hypercaloric oral formula isonitrogenous isocaloric to the experimental one for 8 weeks Control formula : Isonitrogenous isocaloric oral formula
Enriched Nutrition Formula
Patients were given standard diet plus two bottles/day (400 mL) of an hypercaloric oral formula enriched in arginine, zinc and antioxidant oligoelements for 8 weeks Enriched nutrition formula : oral formula enriched in arginine, zinc and antioxidant oligoelements
Overall Study
Death
12
10
Overall Study
Lost to Follow-up
5
8
Overall Study
Withdrawal by Subject
3
5

Baseline Characteristics

Nutritional Support in Pressure Ulcer Patients

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Enriched Nutrition Formula
n=78 Participants
Patients were given standard diet plus two brick of an hypercaloric oral formula enriched in arginine, zinc and antioxidant oligoelements Enriched nutrition formula : oral formula enriched in arginine, zinc and antioxidant oligoelements
Isonitrogenous Isocaloric Formula
n=79 Participants
Patients were given standard diet plus 2 bricks of an hypercaloric oral formula isonitrogenous isocaloric to the experimental one Control formula : Isonitrogenous isocaloric oral formula
Total
n=157 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
5 Participants
n=5 Participants
4 Participants
n=7 Participants
9 Participants
n=5 Participants
Age, Categorical
>=65 years
73 Participants
n=5 Participants
75 Participants
n=7 Participants
148 Participants
n=5 Participants
Age, Continuous
80.6 years
STANDARD_DEVIATION 11.4 • n=5 Participants
81.2 years
STANDARD_DEVIATION 11.3 • n=7 Participants
80.9 years
STANDARD_DEVIATION 11.3 • n=5 Participants
Sex: Female, Male
Female
57 Participants
n=5 Participants
52 Participants
n=7 Participants
109 Participants
n=5 Participants
Sex: Female, Male
Male
21 Participants
n=5 Participants
27 Participants
n=7 Participants
48 Participants
n=5 Participants
Region of Enrollment
Italy
78 participants
n=5 Participants
79 participants
n=7 Participants
157 participants
n=5 Participants

PRIMARY outcome

Timeframe: 8 weeks of nutritional support (baseline and week 8)

healing is defined as reduction in ulcer area (the percentage of change)

Outcome measures

Outcome measures
Measure
Enriched Nutrition Formula
n=78 Participants
Patients were given standard diet plus two brick of an hypercaloric oral formula enriched in arginine, zinc and antioxidant oligoelements Enriched nutrition formula : oral formula enriched in arginine, zinc and antioxidant oligoelements
Isonitrogenous Isocaloric Formula
n=79 Participants
Patients were given standard diet plus 2 bricks of an hypercaloric oral formula isonitrogenous isocaloric to the experimental one Control formula : Isonitrogenous isocaloric oral formula
Rate of Healing
62.9 percent change
Standard Deviation 29.1
43.4 percent change
Standard Deviation 33.5

SECONDARY outcome

Timeframe: 8 weeks of nutritional support (baseline and week 8)

reduction in ulcer area \>=40%

Outcome measures

Outcome measures
Measure
Enriched Nutrition Formula
n=78 Participants
Patients were given standard diet plus two brick of an hypercaloric oral formula enriched in arginine, zinc and antioxidant oligoelements Enriched nutrition formula : oral formula enriched in arginine, zinc and antioxidant oligoelements
Isonitrogenous Isocaloric Formula
n=79 Participants
Patients were given standard diet plus 2 bricks of an hypercaloric oral formula isonitrogenous isocaloric to the experimental one Control formula : Isonitrogenous isocaloric oral formula
Rate of Healing
57 participants
41 participants

SECONDARY outcome

Timeframe: 8 weeks of nutritional support (baseline and week 8)

complete healing

Outcome measures

Outcome measures
Measure
Enriched Nutrition Formula
n=78 Participants
Patients were given standard diet plus two brick of an hypercaloric oral formula enriched in arginine, zinc and antioxidant oligoelements Enriched nutrition formula : oral formula enriched in arginine, zinc and antioxidant oligoelements
Isonitrogenous Isocaloric Formula
n=79 Participants
Patients were given standard diet plus 2 bricks of an hypercaloric oral formula isonitrogenous isocaloric to the experimental one Control formula : Isonitrogenous isocaloric oral formula
Rate of Healing
12 participants
6 participants

SECONDARY outcome

Timeframe: 8 weeks of nutritional support (baseline and week 8)

defined as local (ulcer)

Outcome measures

Outcome measures
Measure
Enriched Nutrition Formula
n=78 Participants
Patients were given standard diet plus two brick of an hypercaloric oral formula enriched in arginine, zinc and antioxidant oligoelements Enriched nutrition formula : oral formula enriched in arginine, zinc and antioxidant oligoelements
Isonitrogenous Isocaloric Formula
n=79 Participants
Patients were given standard diet plus 2 bricks of an hypercaloric oral formula isonitrogenous isocaloric to the experimental one Control formula : Isonitrogenous isocaloric oral formula
Incidence of Infections
9 participants
14 participants

SECONDARY outcome

Timeframe: 8 weeks of nutritional support (baseline and week 8)

Incremental cost-effectiveness ratio (ICER) was calculated by dividing the difference between total costs (active - control) by the difference in the mean reduction (%) of ulcer area. Costs are derived from oral nutritional supplements, dressings, antibiotics, PU swab sampling, nurse visits for wound dressing (according to their duration and cost per hour), medical consultations (unitary cost of the visit for prescription of antibiotic therapy).

Outcome measures

Outcome measures
Measure
Enriched Nutrition Formula
n=78 Participants
Patients were given standard diet plus two brick of an hypercaloric oral formula enriched in arginine, zinc and antioxidant oligoelements Enriched nutrition formula : oral formula enriched in arginine, zinc and antioxidant oligoelements
Isonitrogenous Isocaloric Formula
n=79 Participants
Patients were given standard diet plus 2 bricks of an hypercaloric oral formula isonitrogenous isocaloric to the experimental one Control formula : Isonitrogenous isocaloric oral formula
Cost-effectiveness
639 Euros
Standard Deviation 213
689 Euros
Standard Deviation 247

SECONDARY outcome

Timeframe: 8 weeks of nutritional support (baseline and week 8)

The number of dressings used throughout the intervention period

Outcome measures

Outcome measures
Measure
Enriched Nutrition Formula
n=78 Participants
Patients were given standard diet plus two brick of an hypercaloric oral formula enriched in arginine, zinc and antioxidant oligoelements Enriched nutrition formula : oral formula enriched in arginine, zinc and antioxidant oligoelements
Isonitrogenous Isocaloric Formula
n=79 Participants
Patients were given standard diet plus 2 bricks of an hypercaloric oral formula isonitrogenous isocaloric to the experimental one Control formula : Isonitrogenous isocaloric oral formula
Dressings
31 dressings
Standard Deviation 13
35 dressings
Standard Deviation 13

SECONDARY outcome

Timeframe: 4 weeks of nutritional support (baseline and week 4)

the reduction in ulcer area (%) observed at 4 weeks

Outcome measures

Outcome measures
Measure
Enriched Nutrition Formula
n=78 Participants
Patients were given standard diet plus two brick of an hypercaloric oral formula enriched in arginine, zinc and antioxidant oligoelements Enriched nutrition formula : oral formula enriched in arginine, zinc and antioxidant oligoelements
Isonitrogenous Isocaloric Formula
n=79 Participants
Patients were given standard diet plus 2 bricks of an hypercaloric oral formula isonitrogenous isocaloric to the experimental one Control formula : Isonitrogenous isocaloric oral formula
the Percentage of Change in Area
29.3 percent change
Interval 13.9 to 58.9
21.9 percent change
Interval 5.6 to 38.1

Adverse Events

Enriched Nutrition Formula

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Isonitrogenous Isocaloric Formula

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Dr. Federico D'Andrea

Department of Clinical Nutrition and Dietetics, Azienda Ospedaliera "Maggiore della Carità"

Phone: +39 0321.373.3275

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place