Bartolucci 2009.
Methods |
Allocation: randomized Controlled: placebo and active comparator Blinding: double‐blind Arm: 2‐arm, parallel treatment groups Centre: single centre Study duration: 39‐month period trial (August 2000 to March 2003) |
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Participants |
Inclusion criteria: homozygous SCD participants' who had a severe VOC requiring hospitalization in the internal medicine department. Exclusion criteria: VOC lasting > 72 hr or < 24 hr; parenteral hydration > 24 hr; blood transfusion during the previous month; any NSAID intake during the previous 7 days; pregnancy; history of drug abuse; hypertension; leukocyte count > 30 × 109/L or < 4 × 109/L; presence at inclusion of an acute chest syndrome, defined as the association of 2 criteria among chest pain, radiological infiltrate and auscultatory abnormality; severe anaemia requiring a blood transfusion at inclusion; psychiatric disorder or progressive visceral disease; and ketoprofen allergy or NSAID contraindication; peptic ulcer or treated with 1 of the following drugs the week before enrolment: aspirin, valproic acid, macrolides, anti‐H2, imidazole, rifampicin, phenobarbital, carbamazepine, phenytoin, heparin, vitamin K antagonist, ticlopidine, lithium, methotrexate, interferon‐α, diuretics or antihypertensive agents Baseline characteristics N: 54 participants; 66 VOC episodes Gender: F 20, M 34 Age (mean): ≥ 15 years overall: 27 (SD 7) years intervention; 26 (SD 7) years control Number randomized: 33 intervention; 33 control (VOC episodes) Number completed: 26 intervention; 26 control (VOC episodes) Setting and location: Adult Sickle Cell Referral Centre, Paris University Hospital, France |
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Interventions |
Treatment group (33 VOC episodes): Days 1 and 2:
Days 3–5:
Control group (33 VOC episodes): Days 1 and 2:
Days 3–5:
Duration of treatment: 5 days Follow‐up period: up to 14 days postdischarge Cointerventions/additional analgesia: adjunctive standardized treatment: bed rest, < 3 L of 5% glucose infusion, 1 L/day oral alkaline water, 20 mg/day folic acid, morphine dose not reported and IV paracetamol 2 g every 8 hr for 48 hr, then 1 g every 8 hr) |
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Outcomes |
Primary outcomes
Secondary outcomes
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Notes | Sources of funding: Inserm was the trial promoter. Publication costs of the article were defrayed in part by page charge payments. The article was marked as advertising. | |
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk |
Quote: "patients were randomly assigned in a 1:1 ratio to either the intervention or control group." Comment: no details of randomization method. |
Allocation concealment (selection bias) | Unclear risk | Comment: insufficient information of concealment. |
Blinding of participants and personnel (performance bias) All outcomes | Unclear risk | Comment: no information of details of the blinding process for either IV saline or oral placebo. |
Blinding of outcome assessment (detection bias) All outcomes | Unclear risk | Comment: no statement of outcome assessment of blinding. |
Incomplete outcome data (attrition bias) All outcomes | High risk |
Quote: "7 VOCs each group were excluded from the analysis because of treatment failures." Comment: 20% attrition, and similar in each group. But outcome reporting ignored these randomized participants, and analyses did not seem to be ITT. |
Selective reporting (reporting bias) | Low risk | Comment: all end points listed in the methods were reported in the results. |
Size | High risk | Comment: total participants 54 (66 events), < 50 participants per treatment arm. |
Other bias | Unclear risk | Comment: unit of analysis error. Unit of randomization was the painful crisis (66 randomized crises among 54 participants), but unit of analysis ignored the clustered nature of the data; analysed as if all randomized events were independent. |