Trial Outcomes & Findings for Study Evaluating the Long-Term Safety of Desvenlafaxine Succinate Sustained-Release (DVS SR) in Subjects With Pain Associated With Diabetic Peripheral Neuropathy (NCT NCT01050218)

NCT ID: NCT01050218

Last Updated: 2023-12-11

Results Overview

The primary efficacy variable was the pain severity score measured on an 11 point NRS on which 0=no pain and 10=worst possible pain. The primary efficacy evaluation was the change from baseline in mean pain score on the NRS.

Recruitment status

TERMINATED

Study phase

PHASE3

Target enrollment

237 participants

Primary outcome timeframe

Baseline and 9 months

Results posted on

2023-12-11

Participant Flow

Patients were recruited in the United States from July 2006 to September 2008.

Outpatients must have completed double-blind treatment and all scheduled evaluations in study 3151A5-322 (NCT00283842), with no major protocol violations and no events that, in the opinion of the investigator, would have precluded the subject's entry into the long-term open-label study.

Participant milestones

Participant milestones
Measure
DVS SR Open Label
Daily dose of 100mg or 200mg at the investigators discretion. Subjects already randomized at a dose of 400mg may continue at that dose level.
Overall Study
STARTED
237
Overall Study
COMPLETED
142
Overall Study
NOT COMPLETED
95

Reasons for withdrawal

Reasons for withdrawal
Measure
DVS SR Open Label
Daily dose of 100mg or 200mg at the investigators discretion. Subjects already randomized at a dose of 400mg may continue at that dose level.
Overall Study
Adverse Event
37
Overall Study
Lack of Efficacy
8
Overall Study
Protocol Violation
3
Overall Study
Withdrawal by Subject
18
Overall Study
Discontinued by sponsor
18
Overall Study
Compliance
2
Overall Study
Failed to return
7
Overall Study
Serious Adverse Event
1
Overall Study
Family emergency
1

Baseline Characteristics

Study Evaluating the Long-Term Safety of Desvenlafaxine Succinate Sustained-Release (DVS SR) in Subjects With Pain Associated With Diabetic Peripheral Neuropathy

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
DVS SR Open Label
n=237 Participants
Daily dose of 100mg or 200mg at the investigators discretion. Subjects already randomized at a dose of 400mg may continue at that dose level.
Age, Continuous
59.84 years
STANDARD_DEVIATION 8.90 • n=99 Participants
Sex: Female, Male
Female
64 Participants
n=99 Participants
Sex: Female, Male
Male
173 Participants
n=99 Participants

PRIMARY outcome

Timeframe: Baseline and 9 months

Population: The efficacy population was the intent-to-treat (ITT). This included all randomized subjects who had a baseline primary efficacy evaluation, had taken at least 1 dose of test article, and had at least 1 primary efficacy evaluation (ie, at least 1 NRS daily pain score) after the first dose of test article. No participants met that criterion.

The primary efficacy variable was the pain severity score measured on an 11 point NRS on which 0=no pain and 10=worst possible pain. The primary efficacy evaluation was the change from baseline in mean pain score on the NRS.

Outcome measures

Outcome data not reported

Adverse Events

DVS SR Open Label

Serious events: 26 serious events
Other events: 199 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
DVS SR Open Label
n=237 participants at risk
Daily dose of 100mg or 200mg at the investigators discretion. Subjects already randomized at a dose of 400mg may continue at that dose level.
Blood and lymphatic system disorders
Iron deficiency anaemia
0.42%
1/237
Cardiac disorders
Angina pectoris
0.42%
1/237
Cardiac disorders
Atrial fibrillation
0.42%
1/237
Cardiac disorders
Bradycardia
0.42%
1/237
Cardiac disorders
Cardiac failure congestive
1.3%
3/237
Cardiac disorders
Diastolic dysfunction
0.42%
1/237
Gastrointestinal disorders
Abdominal hernia
0.42%
1/237
Gastrointestinal disorders
Diarrhoea
0.42%
1/237
Gastrointestinal disorders
Erosive oesophagitis
0.42%
1/237
Gastrointestinal disorders
Gastrointestinal haemorrhage
0.42%
1/237
Gastrointestinal disorders
Intestinal obstruction
0.84%
2/237
Gastrointestinal disorders
Nausea
1.3%
3/237
Gastrointestinal disorders
Vomiting
0.84%
2/237
General disorders
Asthenia
0.42%
1/237
General disorders
Chest pain
1.3%
3/237
General disorders
Oedema peripheral
0.42%
1/237
Hepatobiliary disorders
Cholelithiasis
0.42%
1/237
Infections and infestations
Cellulitis
0.42%
1/237
Infections and infestations
Diverticulitis
0.42%
1/237
Infections and infestations
Localised infection
0.84%
2/237
Infections and infestations
Pneumonia
0.42%
1/237
Injury, poisoning and procedural complications
Overdose
0.42%
1/237
Investigations
Blood glucose fluctuation
0.42%
1/237
Investigations
Blood glucose increased
0.42%
1/237
Investigations
Blood pressure increased
0.42%
1/237
Metabolism and nutrition disorders
Dehydration
0.42%
1/237
Metabolism and nutrition disorders
Diabetes mellitus inadequate control
0.42%
1/237
Musculoskeletal and connective tissue disorders
Musculoskeletal chest pain
0.42%
1/237
Musculoskeletal and connective tissue disorders
Spondylolisthesis
0.42%
1/237
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Malignant melanoma in situ
0.42%
1/237
Nervous system disorders
Haemorrhage intracranial
0.42%
1/237
Nervous system disorders
Headache
0.84%
2/237
Nervous system disorders
Status epilepticus
0.42%
1/237
Nervous system disorders
Syncope
0.42%
1/237
Psychiatric disorders
Mental status changes
0.84%
2/237
Renal and urinary disorders
Nephrolithiasis
0.42%
1/237
Renal and urinary disorders
Renal failure acute
0.42%
1/237
Renal and urinary disorders
Urinary retention
0.42%
1/237
Reproductive system and breast disorders
Ovarian mass
0.42%
1/237
Respiratory, thoracic and mediastinal disorders
Chronic obstructive pulmonary disease
0.42%
1/237
Respiratory, thoracic and mediastinal disorders
Hiccups
0.42%
1/237
Respiratory, thoracic and mediastinal disorders
Pulmonary hypertension
0.42%
1/237
Vascular disorders
Iliac artery stenosis
0.42%
1/237

Other adverse events

Other adverse events
Measure
DVS SR Open Label
n=237 participants at risk
Daily dose of 100mg or 200mg at the investigators discretion. Subjects already randomized at a dose of 400mg may continue at that dose level.
Ear and labyrinth disorders
Ear and labyrinth disorders general
5.1%
12/237
Eye disorders
Eye disorders general
5.5%
13/237
Gastrointestinal disorders
Diarrhoea
5.1%
12/237
Gastrointestinal disorders
Dry mouth
6.3%
15/237
Gastrointestinal disorders
Nausea
9.7%
23/237
Gastrointestinal disorders
Vomiting
6.8%
16/237
General disorders
Fatigue
5.5%
13/237
Infections and infestations
Nasopharyngitis
8.0%
19/237
Infections and infestations
Upper respiratory tract infection
10.1%
24/237
Injury, poisoning and procedural complications
Injury, poisoning and procedural complications general
19.4%
46/237
Investigations
Investigations general
16.0%
38/237
Metabolism and nutrition disorders
Metabolism and nutrition disorders general
8.4%
20/237
Musculoskeletal and connective tissue disorders
Arthralgia
5.9%
14/237
Musculoskeletal and connective tissue disorders
Back pain
5.1%
12/237
Musculoskeletal and connective tissue disorders
Muscle spasms
5.5%
13/237
Nervous system disorders
Dizziness
16.5%
39/237
Nervous system disorders
Headache
7.6%
18/237
Psychiatric disorders
Psychiatric disorders general
14.8%
35/237
Renal and urinary disorders
Renal and urinary disorders general
11.8%
28/237
Reproductive system and breast disorders
Reproductive system and breast disorders general
5.5%
13/237
Respiratory, thoracic and mediastinal disorders
Respiratory, thoracic and mediastinal disorders general
11.0%
26/237
Skin and subcutaneous tissue disorders
Skin and subcutaneous tissue disorders general
15.6%
37/237
Vascular disorders
Hypertension
8.0%
19/237

Additional Information

U. S. Contact Center

Wyeth

Results disclosure agreements

  • Principal investigator is a sponsor employee The PIs agreed to allow the sponsor 60 days to review and require changes to presentations or publications but only to protect confidential information and intellectual property, and for the sponsor to file a patent application, as applicable. The PIs also agreed for data to be presented first as a joint, multi-center publication.
  • Publication restrictions are in place

Restriction type: OTHER