ArticleThe Lancet. Haematology2014
Topical sodium nitrite for chronic leg ulcers in patients with sickle cell anaemia: a phase 1 dose-finding safety and tolerability trial.
Article in The Lancet. Haematology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02863068 (A Phase II Study of Topical Sodium Nitrite in Patients With Sickle Cell and Leg Ulcers), which is not on this map. Cited by 15 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Phase II Study of Topical Sodium Nitrite in Patients With Sickle Cell and Leg Ulcers
Who cites it
15 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.
- Interventions for treating leg ulcers in people with sickle cell disease.The Cochrane database of systematic reviews · 2021Pooled it
- Brief topical sodium nitrite and its impact on the quality of life in patients with sickle leg ulcers.Medicine · 2018Trial
- Assessing the Health and Functionality of the Microcirculation Using Thermal Imaging.Journal of biophotonics · 2026Review
- The impact of topical agents and dressing on pH and temperature on wound healing: A systematic, narrative review.International wound journal · 2022Review
- Recent advances on endogenous gasotransmitters in inflammatory dermatological disorders.Journal of advanced research · 2022Review
- Treatment dilemmas: strategies for priapism, chronic leg ulcer disease, and pulmonary hypertension in sickle cell disease.Hematology. American Society of Hematology. Education Program · 2021Review
- Leg ulcers in sickle cell disease patients.Jornal vascular brasileiro · 2020Review
- Leg Ulcers in Sickle-Cell Disease: Treatment Update.Advances in wound care · 2020Review
- Emerging disease-modifying therapies for sickle cell disease.Haematologica · 2019Review
- Therapeutic strategies for sickle cell disease: towards a multi-agent approach.Nature reviews. Drug discovery · 2019Review
- Inflammation in sickle cell disease.Clinical hemorheology and microcirculation · 2018Article
- My Continuing Evolution as a Surgeon-Scientist: A Decade after the Jacobson Promising Investigator Award.Journal of the American College of Surgeons · 2017Article
- A treatment algorithm to identify therapeutic approaches for leg ulcers in patients with sickle cell disease.International wound journal · 2016Review
- The role of blood rheology in sickle cell disease.Blood reviews · 2016Review
- 2015 Clinical trials update in sickle cell anemia.American journal of hematology · 2015Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
14 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundWell-tolerated and effective treatments are needed for chronic leg ulcers in sickle cell anaemia. Topical sodium nitrite, a known nitric oxide donor, enhances blood flow in ulcers and has known bacteriostatic effects. We aimed to assess the safety, tolerability, and pharmacokinetics of topical sodium nitrite in patients with sickle cell disease and chronic leg ulcers.
methodsWe enrolled adult patients from an ambulatory clinic at the National Institutes of Health (Bethesda, MD, USA) with sickle cell anaemia with leg ulcers (with a surface area of 2.5-100 cm
findingsBetween April 4, 2011, and March 19, 2013, we enrolled 18 adult patients with sickle cell anaemia and leg ulcers into our trial. We assigned three patients into each cohort, and each cohort was treated with a different concentration of sodium nitrite cream (cohort 1: 0.5%, cohort 2: 1.0%, cohort 3: 1.5%, and cohort 4: 2.0%). Patients were not enrolled into the next cohort dose until we were able to establish that no dose-limiting toxicities were observed. An additional six patients were enrolled to cohort 3a: 1.8%, after two patients in cohort 4 had asymptomatic drops in diastolic blood pressure. No grade 3-4 adverse events were observed, and there were no serious adverse events or dose-limiting side-effects. Pharmacokinetic analysis showed that systemic absorption of sodium nitrite was very low. Application of topical sodium nitrite was associated with a significant increase in peri-wound cutaneous blood flow measured by laser speckle contrast imaging (p=0.0002), corroborated by increased peri-wound skin temperature by infrared thermography (p=0.0119). We recorded a dose-dependent decrease in leg ulcer size (p=0.0012) and pain (p<0.0001). Ulcers healed completely in three patients who received the highest concentrations of topical sodium nitrite (the 1.8% and 2% cream). In our post-hoc analysis of pain, brief pain inventory scores improved in pain severity (p=0.0048) and pain interference (p=0.0013).
interpretationOur results indicate that topical sodium nitrite 2% cream is suitable for additional clinical trials in adults with sickle cell anaemia to promote healing of leg ulcers.
fundingNational Heart, Lung and Blood Institute Division of Intramural Research (National Institutes of Health).
Identifiers
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.