Showing 28 ideas for tag "cell"

Goal 3: Advance Translational Research

Bone Marrow Stem Cell Transplant in Peds sibling matched SCD

There is a need to improve accessibility of Bone Marrow Stem Cell Transplantation (BMSCT) for Sickle Cell Disease patients who are most likely to benefit from this treatment option.

1. Building a culture of trust between and among primary care providers, specialists, patients/families, and other stakeholders

2. Consensus building around BMSCT as an acceptable treatment alternative (as opposed to another research endeavor)... more »

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? Critical Challenge (CC)

Details on the impact of addressing this CQ or CC
  1. It could potentially decrease the prevalence of SCD and significantly decrease the overall morbidity and mortality associated with SCD in children with matched sibling donors.
  2. It could increase the awareness of health professionals who have a low awareness of the role of BMSCT in the treatment and cure of SCD (i.e., those in rural areas)
  3. It can improve patient/family access to information and communications to facilitate informed discussion and choice for all SCD treatment options
  4. It could open the gateway for more therapeutic applications for other genetic diseases
Feasibility and challenges of addressing this CQ or CC
  1. The science in this has evolved substantially such that BMSCT is a viable therapeutic option with reduced morbidity and mortality in the sibling matched population
  2. There is an opportunity to broaden current collaborations with other agencies and the BMSCT community to expand the accessibility of their research forward.
  3. Other agencies are emphasizing work in the area of BMSCT particularly for hemoglobinopathies.

Name of idea submitter and other team members who worked on this idea NHLBI Staff

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Goal 3: Advance Translational Research

Arrhythmia Therapies Based on Understanding Mechanisms

There is a need to translate these new insights of genetic, molecular, cellular, and tissue arrhythmia mechanisms into the development of novel, safe, and new therapeutic interventions for the treatment and prevention of cardiac arrhythmias.

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? Critical Challenge (CC)

Details on the impact of addressing this CQ or CC

Reduced socioeconomic burden of cardiac arrhythmias. Development of new technologies and recognition of new arrhythmia mechanisms.

Feasibility and challenges of addressing this CQ or CC

Several studies have already recognized the unexpected antiarrhythmic effects of some therapies intended for other cardiovascular disease. For example statins, aldosterone blockers, and possibly some essential fatty acids may reduce arrhythmia burden in patients receiving these interventions. Clinical trials should be developed to demonstrate the efficacy of these interventions, and arrhythmia endpoints, including those for atrial fibrillation and sudden cardiac death, should be incorporated into other large clinical trials. Research into novel antiarrhythmic might focus on (a) drug development; (b) cell/gene-based therapy and tissue engineering; and (c) improvements in development and use of devices and ablation to prevent or inhibit arrhythmic electrical activity. Continued research might also focus on targeting of upstream regulatory cascades of ion channel expression and function. Continued antiarrhythmic strategies might include the exploration of novel delivery systems (e.g., utilizing advances in nanotechnology and microelectronics), biological pacemakers, AV node repair/bypass, and treatment and/or reversal of disease-induced myocardial remodeling and tachyarrhythmias. Evaluation of new therapies should include a cost analysis. Studies in both children and adults with congenital heart are needed. New interventions might include new pharmacologic approaches as well as advances in electrophysiologic imaging and improved approaches to ablation.

Name of idea submitter and other team members who worked on this idea NHLBI Staff

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51 net votes
86 up votes
35 down votes
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Goal 3: Advance Translational Research

Allogeneic transplantation as a safe and universally available therapeutic strategy for treating non-malignant blood diseases

Can new advances in allogeneic blood or marrow transplantation (BMT) make the procedure a safe and universally available therapeutic strategy for treating non-malignant blood and immune disorders such as sickle cell anemia, thalassemia, aplastic anemia, and severe combined immune deficiency?

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? Compelling Question (CQ)

Details on the impact of addressing this CQ or CC

The ability of allogeneic blood or marrow transplantation (BMT) to cure diverse non-malignant diseases is well-documented. However, widespread use in diseases such as sickle cell anemia that cause substantial morbidity and shorten life but are not immediately life-threatening, has been limited by transplant-related toxicity and mortality especially in the majority of these patients who lack HLA-matched donors. Several new therapeutic approaches now exist that are promising strategies, separately or in combination, for addressing issues of donor availability, graft rejection, organ toxicity and acute and chronic graft-versus-host disease more effectively. Evaluation and refinement of these therapeutic strategies in both preclinical and Phase I-III clinical trials now offers a real possibility that allogeneic BMT could be applied early in the course of these diseases, allowing normal growth, development, quality of life and lifespan. If successful, allogeneic BMT offers a major advantage over gene therapy approaches even if such approaches become possible in the future; i.e., allogeneic BMT can be done with low-dose, non-toxic conditioning while gene therapy requires high-dose myeloablative therapy which not only can be toxic/fatal to these patients who often have end-organ dysfunction but also universally induces infertility, a major concern of patient groups who usually survive beyond child-bearing years.

Feasibility and challenges of addressing this CQ or CC

There are now single institution and registry (CIBMTR) data showing that related haploidentical allogeneic BMT using post-transplantation cyclophosphamide (PTCy) produces results similar to those seen with HLA-matched sibling donors. Accordingly, every patient in need of allogeneic BMT now can safely undergo the procedure, including those ethnic groups (such as African-Americans and Hispanics) who are unlikely to find a donor in unrelated registries. Combining PTCy with other approaches for preventing graft-versus-host disease (GVHD) can even eliminate GVHD and transplant-related mortality. Although recurrence of malignant diseases remains an issue, especially as GVHD is eliminated, relapse is not a concern for non-malignant diseases after successful allogeneic engraftment. Moreover, the average cost of allogeneic BMT, about $150K, is a cost-savings over the long-term management of many of these diseases. The NHLBI-funded BMT Clinical Trials Network (CTN) has developed the infrastructure to rapidly and efficiently carry out large multi-institutional BMT trials. Over the last 15 year, thousands of patients have been entered on BMT CTN trials. Of note, African-Americans and Hispanics remarkably represent 30% of the accruals on one such trial, CTN1101, studying unrelated umbilical cord and related haploidentical allogeneic BMT. However, funding for the infrastructure for continuing this work remains problematic, since BMT trials generally lack corporate funding.

Name of idea submitter and other team members who worked on this idea Rick Jones

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214 up votes
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Goal 3: Advance Translational Research

Genome Editing and Gene Therapy

There is a critical need for the establishment of strategies that will determine the efficacy, safety, and toxicity of genome editing techniques specifically in hematologic diseases.

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? Critical Challenge (CC)

Details on the impact of addressing this CQ or CC

Inherited monogenic hematologic diseases such as hemophilia, beta-thalassemia and sickle cell disease are prime targets for future application of genome editing technology. However, studies are still needed to advance our understanding of the biology of genome editing as well as determine which other disorders are amenable to genome editing correction. Emphasis on preclinical research that focuses on determining the accuracy, safety and efficiency of this technology in order to help minimize off-target mutations and reduce toxicity, is essential for effective translation of this technology into the clinic. Once preclinical efficacy is established, support will be needed for clinical vector production, toxicity testing of the vectors/reagents used, and the performance of clinical trials. The gene correction strategies developed for inherited disorders will also be attractive for other hematologic diseases, and autoimmune disorders like lupus, rheumatoid arthritis, and type I diabetes). There is also a critical need for supporting preclinical validation studies, scale-up and GMP cell manufacturing, all of which could be shared infrastructures across multiple diseases in the NHLBI portfolio.

Name of idea submitter and other team members who worked on this idea Alice Kuaban on behalf of the American Society of Hematology (ASH)

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87 up votes
18 down votes
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Goal 3: Advance Translational Research

How can we develop more selective immunosuppression for allogeneic hematopoietic cell transplantation?

Graft versus host disease (GVHD) remains the most significant complication of allogeneic hematopoietic stem cell transplantation (HCT). While the use of HCT has grown significantly safer and has demonstrated broad efficacy in the setting of a broad range of blood diseases, immunosuppressive therapy has not dramatically evolved since the introduction of calcineurin inhibitor-based approaches decades ago. The availability... more »

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? Compelling Question (CQ)

Details on the impact of addressing this CQ or CC

GVHD remains a critical problem and major barrier to the more widespread utilization of HCT, especially for nonmalignant diseases, where tolerance of treatment-related mortality is understandably low.

There is a compelling need for novel immunosuppressive agents that can effectively limit alloreactivity mediated by donor T and B cells, while relatively sparing pathogen-specific T cells, including those mediating antiviral T cell responses important in the post-HCT interval.

In the past decade, drug development has facilitated the introduction into preclinical and clinical trials of a broad range of agents that in addition to targeting pathways of interest in target cells (e.g., aberrant signaling in cancer cells) may also effectively inhibit T and/or B cell responses. Examples include hypomethylating agents (e.g., azacitidine), HDAC inhibitors (e.g., vorinostat), MEK inhibitors (e.g., trametinib) and BTK inhibitors (e.g., ibrutinib). Each of these classes of agents has been demonstrated in preclinical and/or clinical studies to also limit alloreactive T cells, and/or augment regulatory T cell responses, leading to a net reduction of alloreactivity. Unlike traditional agents (e.g., the calcineurin inhibitors) these agents appear to be more selective, and in some cases may have dual benefit in reducing relapse.

The NHLBI can facilitate the identification and translation to clinical practice in the setting of HCT trials of novel immunosuppressive agents.

Feasibility and challenges of addressing this CQ or CC

Research funding targeted to improving the pipeline of novel immunosuppressive agents could have immediate and dramatic impact in the field of HCT, especially impacting its application for nonmalignant diseases. Patients lacking optimal registry donors, especially those from underrepresented minority groups, will particularly benefit from improvements in immunosuppression, as patients receiving less than optimally matched donors are at much higher risk of GVHD.

The NHLBI can encourage and facilitate research that tests compounds that have already passed through the drug development process, but in many cases were not intended to function as immunosuppressive agents. Compelling preclinical studies have suggested that targeted inhibition of T and B cells, and/or epigenetic modifiers can lessen alloreactivity while preserving beneficial cellular immune responses and facilitating immune reconstitution.

It will be far easier to appropriate therapeutic agents already developed for another purpose than to do novel drug development from scratch. In many cases, preclinical studies have highlighted the therapeutic potential in immunosuppression for agents that have been developed to treat malignancies, but yielded suboptimal success. Research that encourages the development of these drugs as part of a combined immunosuppressive/immunomodulation approach may rescue such compounds, while yielding potential dramatic advances in clinical HCT.

Name of idea submitter and other team members who worked on this idea Krishna Komanduri, M.D.

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106 net votes
129 up votes
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Goal 3: Advance Translational Research

Novel Cell Apheresis Technologies to Treat Hematologic Diseases

Current FDA approved apheresis technology uses elutriation/centrifugation or filtration separation techniques to remove pathologic cellular and/or plasma elements. Currently these techniques are non-specific, limited by inefficient removal kinetics and often require considerable blood product exposure. Despite tremendous improvement in our understanding of the pathophysiology of a variety of disease, our ability to... more »

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? Critical Challenge (CC)

Details on the impact of addressing this CQ or CC

Novel means of selectively removing unique cellular elements involved in disease modulation are needed. For example, microparticles (MPs) have been implicated in a variety of biological processes such as: a) coagulation (e.g. platelet MPs has shown to be 50-100 times more procoagulant than activated platelets), b) oxidative stress (e.g. promotion of oxidative stress via endothelial-, monocyte-, or lymphocyte-derived MPs), and c) inflammation (e.g. acute lung injury in a rat model of acute lung injury). In regards to specific hematologic disease, the hypercoagulability associated with sickle cell disease, for example, may be the result of chronic hemolysis and circulating cell-derived MPs originating from activated platelets and erythrocytes. Endothelial progenitor cells when infused into patients with acute myocardial infarction have been shown to improve ventricular ejection fraction, cardiac geometry, coronary blood flow reserve and myocardial viability. Finally, apheresis for cells of the immune system such as T regulatory cells, cytotoxic T cells, monocytes, dendritic cells, and NK cells will be useful in immunotherapy approaches to hematologic disease. Removal of unique cellular elements may result in amelioration/treatment of associated diseases, or conversely, infusion of these cellular elements may be used to treat disease via a cellular therapy approach. Currently, apheresis methodologies that can selectively remove these unique cellular elements do not exist

Feasibility and challenges of addressing this CQ or CC

Large scale cell separation of unique cellular elements requires new approaches. Although there are no prototypic cell separation devices that can be used for clinical purposes, the emergence of microfluidic technologies have demonstrated alternatives to current cell separator technology. For example, microfluidic technology has utilized imaging/optical signal-based, magnetic, dielectrophoretic, mechanical/hydrodynamic, and molecular cell surface recognition principles to effect cell separation. Recently, acoustic separation of tumor from normal cells has been developed and offers a unique method for label free cell separation. Clearly, research into the use of these cell separation technologies on a clinical scale would require significant research and development/small business grant support and industry input with eventual need for clinical trials of these new devices to demonstrate utility.

Name of idea submitter and other team members who worked on this idea Edward Wong on behalf of ASFA

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21 down votes
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Goal 3: Advance Translational Research

Translational research supporting stem cell therapy for cardiovascular disease

Translational research supporting stem cell therapy for cardiovascular disease, including: core laboratories for preclinical IND-enabling studies (e.g., PACT), and clinical trials networks for evaluating promising new treatments (e.g., CCTRN).

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? Critical Challenge (CC)

Details on the impact of addressing this CQ or CC

The most cost effective scientific procedure ever utilized to answer the risk benefit question posed by a new intervention to be used in humans is a clinical trial. Major clinical trials are their most effective when planted in controversial ground (MRFIT, CAST, ALLHAT). Like these studies, which were caught in a controversial dynamic of uncertainties and disparate sets of expectations, a clinical trial network to assess cell therapy is precisely what is needed.
Experienced researchers recognize the current inimical environment of cell therapy. Now - as before - some forces argue that new therapy offers no benefits, while other equally vehement constituents contend that the benefits of therapy are so great, and the risks so small, that the treatment requires little if any regulation and should be available at once to the US public. Each side provides thunder, but little light.
It is precisely in this contentious environment where passions argue beyond the data that clinical trials are required. Their construction of the most objective view of the strengths and weaknesses of the intervention comes at a cost, but the answers these well designed and concordantly executed studies provide is the clearest illuminations of the benefits and risks of human cell therapy.

Feasibility and challenges of addressing this CQ or CC

Based on the unmet clinical needs in the treatment of cardiovascular disease and the compelling early evidence for the promise of cell therapy, NHLBI created the Cardiovascular Cell Therapy Research Network in 2007. Now in its ninth year, the Network has completed three major clinical trials in cell therapy. It has published 35 manuscripts in prestigious clinical journals including JAMA, Circ, and Circ Research. Its biorepository has published two manuscripts relating baseline phenotype findings to measures of left ventricular function. A fourth clinical trial is underway assessing the effect of cell therapy on peripheral vascular disease. The Network is also proceeding with the largest effort to assess the effect of CSC cells in patients with heart failure - the first clinical trial that will assess the effect of combined cell therapy in heart failure patients. In addition, CCTRN will study the effect of allogeneic mesenchymal stem cells in patients with anthracycline-induced cardiomyopathy. Each of these protocols is NHLBI and FDA approved.
CCTRN’s reputation of conducting and then promulgating the results of high quality clinical trials makes it the most effective mechanism to assess the benefits of cell therapy in cardiovascular disease. It is important to continue to fund the infrastructure already in place to ensure its continued high quality operation and its place as the cornerstone of cardiovascular clinical cell therapy research in the United States.

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Goal 3: Advance Translational Research

Stem Cell Biology

There is a need to develop “designer platelets” and “designer red cells,” as well as facilitate large-scale production of these products for therapeutic and diagnostic use.

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? Critical Challenge (CC)

Details on the impact of addressing this CQ or CC

The reprogramming of adult stem cells has resulted in the generation of induced pluripotent stem cells (iPSCs) that can develop into any tissue of the body. These iPSCs ultimately may be used as a transplantable source of stem cells for a variety of hematologic diseases. Although this technology has enabled the generation of patient-specific or disease-specific stem cells that are also amenable to genetic manipulation, the major scientific hurdle has been the ability to create clinically meaningful functional blood products, including transplantable HSCs from differentiating iPSCs. The production of clinically functional blood products -- i.e. red blood cells derived from autologous iPSCs --could replace allogeneic products in highly immunized patients and the generation of megakaryocytes for patient-specific platelet production from iPSCs could drive significant progress in this area. Furthermore, disease-specific iPSCs could serve as targets for both drug development and drug screening in patients with rare hematologic disorders. In addition, support for scale-up and GMP processes, which are difficult to fund via the R01 mechanism will require specific grant opportunities tailored to infrastructure and process development.

Name of idea submitter and other team members who worked on this idea Alice Kuaban on behalf of the American Society of Hematology (ASH)

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25 net votes
53 up votes
28 down votes
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Goal 3: Advance Translational Research

Maximizing anti-tumor immunity following allogeneic HCT with biomarkers

Allogeneic hematopoietic cell transplantation (allo-HCT) is one of the most effective forms of tumor immunotherapy available to date. Allo-HCT can be life-saving for patients with aggressive malignancies that cannot be cured through other strategies. The immunotherapeutic efficacy of allo-HCT depends on donor T cell recognition of alloantigens on leukemic cells, which is known as the graft-versus-tumor effect (GVT). No... more »

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? Critical Challenge (CC)

Details on the impact of addressing this CQ or CC

Allo-HCT represents the only curative therapy for a number of malignant disorders but often results in serious complications, including GVHD. Because GVHD is such a potentially devastating post-transplant complication and because we want to be able to separate GVHD from the GVT effect, it is crucial to try to determine a specific biological pattern link to the favorable GVT effect. The focus of this critical challenge will be to develop a novel, non-invasive GVT signature in patients undergoing HCT. If successful, this will have a major impact, because a GVT-specific proteomic signature may facilitate the clinical therapeutic decision of rapid taper of immunosuppression or increased immunotherapies. The ability to identify patients who will not develop GVT early post-transplant has important therapeutic consequences, including preventative care with donor-lymphocyte infusion (DLI) or tumor-specific vaccines or T cells expressing chimeric antigen receptors (CARs). Equally important is the identification of patients who will develop GVT without GVHD, potentially enabling more rapid tapering of immunosuppressive regimens and thereby promoting even more the GVT reaction as well as reducing long-term toxicity in these patients. With this diagnostic tool, the HCT community may plan to develop preemptive therapeutic trials. In addition, the biomarkers may represent potential GVT-specific therapeutic targets to maximize GVT and/or immunotherapies.

Feasibility and challenges of addressing this CQ or CC

Using proteomics, several GVHD biomarkers were recently identified and validated. For example, high suppression of tumorigenicity 2 (ST2) plasma concentrations were significantly associated with the incidence of GVHD and transplant-related mortality in recipients of unmanipulated graft and cord blood transplants. Consequently, the Blood and Marrow Transplant Clinical Trial network is currently pursuing therapeutic interventions for newly diagnosed GVHD patients based on GVHD biomarkers risk-stratification. Thus, discovering and validating biomarkers post-HCT is feasible. However, the challenges with GVT-specific biomarkers are three-fold: 1) the absence of phenotype, as the only way to define clinical GVT without GVHD, is the absence of relapse and no GVHD post-HCT; 2) the paucity of samples to study GVT, ideally samples following DLI or nonmyeloablative conditioning preparative regimens that permit stable engraftment of donor hematopoietic cells but have little or no direct tumoricidal activity should be available; and 3) the relative lack of knowledge of the biology of GVT. These represent important challenges to solve. In sum, the recent successes of cancer immunotherapies, particularly for the treatment of hematological malignancies, have stimulated interest in the potential widespread application of these approaches, and biomarkers to predict and monitor the responses are required.

Name of idea submitter and other team members who worked on this idea Sophie Paczesny

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Goal 3: Advance Translational Research

Dissemination & Implementation of new treatments and therapies in sickle cell disease

Are current advances in gene editing, new drug therapies and less restrictive BMT criteria being explained and rolled out to the sickle cell community in an effective and timely manner? When can people living with sickle cell disease experience a better quality of life on more permanent based on the treatments we already have?

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? Compelling Question (CQ)

Details on the impact of addressing this CQ or CC

Bone marrow transplant criteria has become less restrictive yet there has not been a steep increase in procedures. My understanding is that a sibling or child with the trait can be a donor. At some point this treatment needs to become more widely accessible and discussed with all patients by their doctors.

Name of idea submitter and other team members who worked on this idea Sickle Cell Warriors, Inc.

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46 net votes
55 up votes
9 down votes
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Goal 3: Advance Translational Research

Sickle Cell Trait complications

What are the factors leading to severe health consequences in the sickle cell trait population?

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? Compelling Question (CQ)

Details on the impact of addressing this CQ or CC

It has been reported for many decades that the sickle cell trait population are an asymptomatic group; however, there have been an increasing number of reports in the media and the medical literature suggesting the opposite.

Name of idea submitter and other team members who worked on this idea Sickle Cell Warriors, Inc. community members

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30 net votes
38 up votes
8 down votes
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Goal 3: Advance Translational Research

Financial and psycosocial impact of transition in sickle cell disease

What are the financial and social implications for individuals living with SCD from adolescence transitioning into adult care? What impact does this transition have on the caregiver and family as a whole?

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? Compelling Question (CQ)

Details on the impact of addressing this CQ or CC

It is very difficult for many living with SCD to maintain employment (many people have to rely on disability benefits to survive) finish school, even maintain relationships. Greater understanding of the financial and social impact would enable advocacy and direct patient service organizations to better prepare the transitioning population, reducing the financial strain on the individual and the growing medical debt incurred by hospitals and government social service programs.

Name of idea submitter and other team members who worked on this idea Sickle Cell Warriors, Inc. community members

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30 net votes
38 up votes
8 down votes
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Goal 3: Advance Translational Research

psychosocial care in sickle cell disease

What are the most effective trans-disciplinary and multi-level strategies for accelerating psychosocial care with sickle cell disease and how psychosocial factors impact families?

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? Critical Challenge (CC)

Details on the impact of addressing this CQ or CC

Since sickle cell has multiple layers in medical treatment strategies, how can the same thought process happen when it comes to psychosocial matters? How can the NHLBI develop effective patient engagement trans-disciplinary and multi-level strategies that work with medical strategies to deal with psychosocial matters for individuals and families?

Name of idea submitter and other team members who worked on this idea Sickle Cell Warriors, Inc community members

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38 net votes
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Goal 3: Advance Translational Research

Implementation science research to reduce adverse effects of SCD

From various publications and reports, we have characterized the risks associated with sickle cell disease (SCD) and understand many of the barriers for treatment of SCD in LMICs. How can implementation science research be used to reduce the negative outcomes of SCD in low/middle income countries?

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? Compelling Question (CQ)

Details on the impact of addressing this CQ or CC

• Reduction of deaths and negative outcomes associated with SCD and in LMICs
• Provide the evidence base that supports culturally relevant implementation strategies that reduce deaths associated with SCD in LIMCs

Feasibility and challenges of addressing this CQ or CC

• Yes
, this is feasible
• Common goals and deliverables between NHLBI and partners will need to be identified
• Partnerships can be with international organizations, Ministries of Health and other partners

Name of idea submitter and other team members who worked on this idea NHLBI Staff

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18 net votes
31 up votes
13 down votes
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Goal 3: Advance Translational Research

Sickle cell disease and fatigue

What factors, other than hemoglobin count, are involved in the extreme fatigue experienced by individuals living with sickle cell disease?

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? Compelling Question (CQ)

Details on the impact of addressing this CQ or CC

Many in the sickle cell community report continuous fatigue that interrupts their daily activities in spite of normal, or above baseline, hemoglobin levels

Name of idea submitter and other team members who worked on this idea Sickle Cell Warriors, Inc. community members

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