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CLINICAL TRIALS AND OBSERVATIONS Eradication of minimal residual disease in hairy cell leukemia Farhad Ravandi, Jeffrey L. Jorgensen, Susan M. O'Brien, Srdan Verstovsek, Charles A. Koller, Stefan Faderl, Francis J. Giles,Alessandra Ferrajoli, William G. Wierda, Shirley Odinga, Xuelin Huang, Deborah A. Thomas, Emil J. Freireich, Dan Jones,Michael J. Keating, and Hagop M. Kantarjian Although the nucleoside analogs cladrib-
newly diagnosed HCL (n 11) or after
CD8 lymphocyte number after rituximab.
ine and pentostatin produce high re-
failure of one prior chemotherapy (n 2)
We conclude that eradication of MRD in
sponse rates in patients with hairy cell
with cladribine (5.6 mg/m2 given intrave-
HCL is possible. Whether this leads to a
leukemia (HCL), a significant number of
nously over 2 hours daily for 5 days)
reduced risk of relapse would need to be
patients eventually relapse. Several stud-
followed by 8 weekly doses of rituximab
evaluated in a larger number of patients
ies have demonstrated that patients with
(375 mg/m2). All patients achieved a CR
and with longer follow-up. Disease char-
complete remission (CR) have a longer
and minimal residual disease (MRD) as-
acteristics may potentially be used to
disease-free survival. Therefore, strate-
sessed by consensus primer polymerase
identify patients that are more likely to
gies to improve on the initial response to
chain reaction (PCR) or flow cytometry
benefit from such additional therapy.
nucleoside analog therapy are likely to be
was eradicated in 11 (92%) of 12 and in 12
beneficial, at least for a proportion of
(92%) of 13 of patients, respectively. There
patients. We have treated 13 patients with
was no decline in the absolute CD4 and
2006 by The American Society of Hematology
Hairy cell leukemia (HCL) is an indolent lymphoproliferative achieved CR, with 7 (30%) achieving PR. The overall survival after malignancy characterized by infiltration of the bone marrow, liver, 12 years was 87%.13 Other studies confirm a high but not universal spleen, and occasionally lymph nodes with neoplastic B cells with response rate as well as a relapse-free survival of 70% to 80% at cytoplasmic hairlike projections.1 Before the availability of effec- about 4 years.14,15 tive agents, splenectomy was the standard treatment option leading Similar results have been achieved using pentostatin.16 Overall to significant improvements in cytopenias but of limited duration.2 CR rates of 44% to 89% are seen with pentostatin given at a dose of More recently, interferon-␣ (IFN-␣) and nucleoside analogs such 2 to 4 mg/m2 every 2 weeks.16 Dearden et al17 evaluated 165 as 2-chlorodeoxyadenosine (2-CDA or cladribine) and 2-deoxyco- patients treated with pentostatin and 45 patients treated with formycin (DCF or pentostatin) have been successfully used to treat cladribine. Relapse rates were 24% for pentostatin and 29% for patients with HCL.3-9 cladribine after a median follow-up of 71 and 45 months, respec- Cladribine has been highly effective in treating patients with tively.17 Flinn et al9 reported their long-term follow-up of 241 HCL, with overall response rates ranging from 75% to 100% after a patients treated with pentostatin either as initial therapy or after single course of the drug administered by continuous infusion daily failure of IFN-␣. The 5- and 10-year event-free survival rates were for 7 days.10 However, responses are not universal, and a significant 85% and 67%, respectively.9 proportion of patients relapse.10 Saven et al11 reported the long- Therefore, there is a definite relapse rate associated with therapy term follow-up of 358 patients treated at the Scripps Clinic who of HCL with both cladribine and pentostatin, and the relapse-free were followed for a median of 52 months. Twenty-six percent of survival curve does not appear to reach a plateau. Recently, a patients relapsed at a median of 29 months.11 Goodman et al12 number of reports have demonstrated the efficacy of the monoclo- described the long-term follow-up of 209 patients treated with nal antibody rituximab in treating patients with relapsed HCL.18-21 cladribine. Although the overall response rate was 100%, 76 Rituximab targets the pan–B-cell antigen CD20, which is ex- patients (37%) relapsed, with a median time to relapse of 42 pressed at high levels on the surface of hairy cells.22,23 Nieva et al19 months.12 In a recent report from Northwestern University,13 86 reported a CR rate of 13% and a PR rate of 13% in 24 patients with consecutive patients were treated with cladribine; a complete relapsed HCL who received rituximab 375 mg/m2 once weekly for remission (CR) rate of 79% and a partial remission (PR) rate of 4 weeks. Lauria et al21 treated 10 patients with relapsed or 21% were noted. The progression-free survival after 12 years was progressed HCL with a similar regimen of rituximab and noted 1 54% and with a median follow-up of 9.7 years (range, 0.3-13.8 CR and 4 PR [overall response (OR), 50%]. In a study by Hagberg years), 31 patients (36%) relapsed. Twenty-three relapsed patients et al,20 11 patients with HCL (including 3 previously untreated were treated with a second course of cladribine and 12 (52%) patients) received rituximab 375 mg/m2 weekly for 4 weeks. The From the Department of Leukemia, University of Texas, M.D. Anderson Cancer Reprints: Farhad Ravandi, University of Texas, M.D. Anderson Cancer Center,
Center, Houston, TX; the Department of Hematopathology, University of Texas, Department of Leukemia, Unit 428, 1515 Holcombe Blvd, Houston, TX 77030; M.D. Anderson Cancer Center, Houston, TX; and the Department of Biostatistics, University of Texas, M.D. Anderson Cancer Center, Houston, TX.
The publication costs of this article were defrayed in part by page chargepayment. Therefore, and solely to indicate this fact, this article is hereby Submitted November 21, 2005; accepted February 14, 2006. Prepublished marked ‘‘advertisement'' in accordance with 18 U.S.C. section 1734.
online as Blood First Edition Paper, February 23, 2006; DOI 10.1182/blood-2005-11-4590.
2006 by The American Society of Hematology BLOOD, 15 JUNE 2006 䡠 VOLUME 107, NUMBER 12 BLOOD, 15 JUNE 2006 ERADICATING MRD IN HCL 䡠 VOLUME 107, NUMBER 12 OR rate was 64% with 6 CRs and 1 PR (including 1 CR in a treatment-naive patient).20 Thomas et al18 used an extended dosing Between June 2004 and August 2005, 13 consecutive patients with HCL regimen and administered rituximab 375 mg/m2 weekly for 8 to 12 were treated. The study was approved by the institutional review board of doses to 15 patients with relapsed or refractory HCL. The overall the University of Texas M.D. Anderson Cancer Center. All patients signed response rate was 80%, including 8 CRs (52%), 2 CRs with an informed consent to participate in the study. Eleven patients had newly residual marrow disease (13%), and 2 PRs (13%).18 diagnosed disease and 2 had relapsed from prior therapy. One patient had Rituximab has been successfully combined with nucleoside received 2CDA 9 years ago and relapsed with progressive cytopenias; analogs in the treatment of other indolent lymphoproliferative another patient had received chlorambucil for 8 years and had generalized disorders.24,25 These combinations have generally been well toler- adenopathy, and a variant HCL histology. The median age of the patientswas 53 years (range, 31-73 years). Fluorescent in situ hybridization (FISH) ated. We have treated 13 patients with HCL, either newly diag- was positive for the presence of a clone with p53 deletion or monosomy 17 nosed or in relapse after one prior therapy, with cladribine followed in 2 patients. One patient with variant HCL had a complex karyotype, but no by rituximab to eradicate residual HCL. Minimal residual disease cytogenetic abnormalities were noted in the other 12 patients. Six of 10 (MRD) was evaluated using flow cytometry for HCL-specific evaluable patients had mutated immunoglobulin heavy chain variable gene marker expression patterns and by an immunoglobulin heavy chain (IgVH), whereas IgVH was unmutated in 4 patients. Patient characteristics (IgH) polymerase chain reaction (PCR) assay using framework-1, are summarized in Table 1.
-2, and -3 primer sets.
Cladribine 5.6 mg/m2 was administered intravenously over 2 hours daily for5 days. Approximately 28 days after initiation of cladribine, a repeat bone Patients and methods
marrow examination was evaluated for the presence of MRD. This wasfollowed by 8 weekly doses of rituximab 375 mg/m2. At completion of therapy with rituximab a repeat bone marrow examination for evaluation of Patients were eligible if they had a new diagnosis of HCL with active MRD was performed. Patients are then followed with peripheral blood disease or if they had relapsed after one prior therapy. Diagnosis of HCL evaluations every 3 months, including flow cytometry assays for MRD.
was based on morphologic evaluation of peripheral blood, bone marrowaspirates, and core biopsies, in combination with a characteristic flow cytometric immunophenotype (bright positivity for CD22, CD11c, and Prophylactic antibiotics, including levofloxacin, valacyclovir, and flucon- CD103). Most cases were also stained for tartrate-resistant acid phospha- azole (or equivalent agents), were administered at the discretion of the tase (TRAP) on aspirate smears, and all tested cases were positive. Active treating physician. Growth factors such as granulocyte-macrophage colony- disease was defined as one or more of the following: (1) hemoglobin (Hgb) stimulating factor (GM-CSF) and granulocyte colony-stimulating factor level less than 100 g/L or transfusions of at least 2 units of packed red blood (G-CSF) were administered at the discretion of the treating physician.
cells per month, absolute neutrophil count (ANC) less than 1.5 ⫻ 109/L, Transfusion support with irradiated and filtered packed red blood cells, platelet count less than 100 ⫻ 109/L, or greater than 25% decline from platelets, or both was provided when indicated.
baseline over 3 months in one or more cell lines; (2) circulating hairy cellsat least 1 ⫻ 109/L or extramedullary HCL; and/or (3) bone marrow hairy Criteria for response
cells at least 10% (on aspirates and/or biopsy sections); (4) recurrentinfections, progressive decline in performance status, or symptomatic CR was defined as the absence of hairy cells on BM aspirate smears or the splenomegaly. Patients were required to have an Eastern Cooperative presence of less than 1% atypical cells (not definitively called hairy cells) in Oncology Group (ECOG) performance status of 2 or less and adequate bone marrow and blood and the disappearance of all evidence of HCL on organ function with a serum bilirubin level of no more than 3.5 mg/dL, physical examination. Achievement of CR required an ANC of at least aspartate aminotransferase/alanine aminotransferase (AST/ALT) less than 3 1.5 ⫻ 109/L; Hgb at least 120 g/L (at least 110 g/L for women); and platelet times the upper limit of normal, and creatinine no more than 2.0 mg/dL.
count at least 100 ⫻ 109/L without growth factor or transfusion support. CR Higher values were acceptable if they were directly related to the disease.
with residual disease (CR-RD) was defined as for CR but with persistence Table 1. Patient characteristics
Hgb level,
Age, y/sex
homology, %
17 by FISH
Rx indicates medication; WBC, white blood count; ANC, absolute neutrophil count; Hgb, hemoglobin; FISH, fluorescent in situ hybridization; 2CDA, 2-chlorodeoxyade- nosine; NA, not available; Chl, chlorambucil.
*Variant HCL.
BLOOD, 15 JUNE 2006 䡠 VOLUME 107, NUMBER 12 of 1% to 5% hairy cells in the marrow (but no circulating hairy cells). PRwas defined as (1) meeting the peripheral blood count criteria forCR/CR-RD but with more than 5% residual hairy cells in the marrow or (2)at least 50% improvement or correction of at least one cytopenia withoutdecrease in any of the other cell counts, reduction in palpable abnormalitieson physical examination by at least 50%, and reduction in circulating orbone marrow hairy cells by at least 50%. Responses were evaluated aftercompletion of therapy with rituximab.
Figure 1. Assessment of hairy cells in a patient with HCL by flow cytometry
Bone marrow histology and immunohistochemistry (IHC)
performed on bone marrow aspirate specimen. CD19⫹ lymphocytes are shown.
(A) Day 0, hairy cells are 10.7% of total cells. (B) Day 30 (after 2CDA), hairy cells are
Formalin-fixed, paraffin-embedded bone marrow core biopsies were stained 11.0% of total cells. (C) Day 90 (after rituximab), hairy cells are undetectable, with with hematoxylin and eosin for morphologic evaluation, at all posttherapy fewer than 1/200 000 cells CD19⫹ with CD103 expression significantly abovebackground.
time points. For most time points, IHC staining was performed on biopsysections by standard techniques,26 for a pan–B-cell marker other than framework 3 (FR3) regions, in combination with either a consensus JH or CD20. Antibodies used were PAX-5 (1:35; BD Biosciences Transduction CH primer with detection by capillary electrophoresis.27 Laboratories, San Jose, CA) or CD79a (1:50; Dako, Carpinteria, CA).
Cases showing B-cell aggregates by IHC were scored as positive for IgVH gene analysis
residual disease.
Total RNA was extracted from bone marrow aspirate or peripheral bloodusing Trizol, converted to cDNA using Superscript II (Invitrogen, Carlsbad, MRD and immune status assessment by flow cytometry
CA) and used to amplify the clonal immunoglobulin heavy chain gene Peripheral blood and bone marrow specimens for MRD assays were stained rearrangements by a PCR method using V primers derived from the leader with a 4-color panel of antibodies with the following combinations region with either a consensus JH or CH primer.28 The dominant IgVH clone product(s) was then sequenced by standard Sanger methods. Diver- CD45/CD19, CD20/CD25/CD45/CD19, Ig␬/CD22/CD45/CD19, Ig␭/CD22/ gence from germ line IgVH segments29 was calculated using DNAPLOT CD45/CD19, and Ig␬/Ig␭/CD19/CD22. All antibodies were from BD software (VBASE Sequence Directory, I.M.; Tomlinson, MRC Center for Biosciences (San Diego, CA). Antibodies were added to 106 mononuclear Protein Engineering, Cambridge, United Kingdom); 2% or less changes cells per tube in 100 ␮L whole blood or marrow (diluted with phosphate- over codons 1 to 94 of IgVH was regarded as unmutated. The VH segment buffered saline [PBS] and 1% fetal bovine serum as needed), and incubated used was also recorded.
for 10 minutes at room temperature. Erythrocyte lysis was performed usingBD PharmLyse (BD Biosciences), followed by a wash with PBS containing 0.1% sodium azide, using a Sorvall Cell Washer 2. Cells were resuspended A maximum of 44 patients are planned for this trial with early stopping for acquisition in PBS containing 1% formaldehyde. For tubes containing rules to monitor futility and excess toxicity. These stopping boundaries have anti-␬ or anti-␭ antibodies, lysis and washing were performed prior to not been reached. The CD4 and CD8 counts during the treatment were cell-surface staining. Data were acquired on FACSCalibur flow cytometers analyzed by paired Wilcoxon and paired t tests.
(BD Biosciences) using BD CellQuest Pro software. CD19⫹ B cells wereselectively gated, with from 40 000 to 600 000 total cells acquired per tube,depending on sample quality. Data were analyzed using CellQuest Pro (BD Hairy cells were identified on the basis of bright coexpression of CD11c Response to therapy
and CD22, positivity for CD103 and CD25 (moderate to bright), and clonalexpression of surface immunoglobulin light chains on CD22 bright B cells.
All 13 patients (100%) have achieved CR after completion of the Hairy cell variants were negative for CD25. The limit of sensitivity was planned therapy. Approximately 1 month after 2CDA therapy, established using control specimens consisting of 10 bone marrow aspi- morphologic, IHC, or both examinations of bone marrow core rates, acquired for staging of patients with other B-lineage lymphomas, all biopsies showed that 8 patients had 0 or less than 1% hairy cells in negative for malignancy, stained with the same antibody panel. There weresmall subsets of CD19⫹ cells in most control marrows which were also their BM (CR), whereas 5 patients still had 1% to 50% hairy cells.
positive for CD11cbright/CD22bright. Thus, this marker combination was Examination of the bone marrow core biopsies at the completion of noncontributory for MRD studies. However, the background of CD103⫹ treatment with rituximab did not show definitive evidence of HCL cells in control marrows was low (⬍ 0.02% of total cells), and CD25bright⫹ in any patient. MRD assessed by flow cytometry was positive in 11 cells showed similarly low levels. Therefore, in cases with background patients 1 month after 2CDA therapy but became negative in 12 of populations of normal B cells, the limit of detection of residual HCL was 13 patients after rituximab. The flow cytometry (FC) assay 0.02%. In specimens with no normal background B cells, HCL populations appeared more sensitive than IHC for pan–B-cell markers; no with multiple phenotypic aberrancies could be detected at a level of 0.05% specimen was positive by IHC but negative by FC, whereas several to 0.003% (20 aberrant cells of 40 000-600 000 collected). The MRD specimens showed low-level positivity by FC but indeterminate assessment for a representative patient is demonstrated in Figure 1.
IHC results, with only rare scattered B cells. MRD by PCR assay For immune status assessment, peripheral blood lymphocytes were stained with the following antibody combinations (FITC/PE/PerCP-Cy5.5/ was positive in 5 of 11 evaluable patients 1 month after 2CDA APC): CD8/CD4/CD45/CD3 and CD3/CD56/CD45/CD19. All antibodies therapy and became negative in 11 of 12 evaluable patients were from BD Biosciences. Erythrocytes were lysed using FACSLyse (BD (equivocal in 1) after rituximab. With a median follow-up of 14 Biosciences). Data were acquired and analyzed as described above.
months (range, 6-16 months), no patients have relapsed (medianresponse duration, 9 months; range, 4-16 months). One patient has MRD assessment by polymerase chain reaction
developed a second malignancy (pancreatic carcinoma).
Total DNA was extracted from PB or bone marrow aspirate samples using an automated method (Autopure; Genta, Minneapolis, MN). B-cell clonal-ity was determined using a polymerase chain reaction (PCR) method using The treatment was well tolerated with no unexpected toxicity. Nine V primers derived from the framework 1 (FR1), framework 2 (FR2), and episodes of grade 3 toxicity, including 3 episodes of grade 3

BLOOD, 15 JUNE 2006 ERADICATING MRD IN HCL 䡠 VOLUME 107, NUMBER 12 neutropenic fever thought to be related to therapy and 2 episodes of of IFN-␣ produced response rates of greater than 80%; however, grade 3 herpes zoster possibly related to therapy, were reported.
most were PRs and of limited duration. The nucleoside analogs Four other grade 3 events included one episode each of cellulitis, cladribine and pentostatin have been highly effective in producing acute gouty arthritis in a patient with history of gout, renal lasting responses in most patients with HCL. Despite this, single- impairment related to an acute attack of gout in a patient with a agent therapy with cladribine or pentostatin is not universally known history of gout, and renal impairment due to antibiotic- effective. Furthermore, relapses do occur in up to 40% of patients induced interstitial nephritis thought not to be related to the within 4 years of initial therapy. Several studies have demonstrated treatment. Other adverse events were grade 1 and 2 and included that the quality of the initial response is predictive of outcome, with nausea, rash, fatigue, weight gain, weight loss, and fever.
a longer disease-free survival for those achieving CR with theirinitial therapy.9,17 Therefore, to realize "cure" in HCL, achievement of CR without evidence of MRD is desirable.
To evaluate the effect of an extended course of rituximab on Wheaton et al30 have previously noted a shorter relapse-free immune parameters, peripheral blood CD4 and CD8 lymphocyte survival in patients who had evidence of MRD (detected by IHC subsets were evaluated at various time points during the therapy.
using anti-CD45RO, anti-CD20, and DBA.44 in paraffin-embed- Treatment with cladribine led to a statistically significant decline in ded bone marrow sections) compared with those who did not. More the CD4 count, which remained stable after therapy with rituximab.
precise methods for detecting MRD using immunophenotyping by Both CD4 and CD8 counts dropped significantly at day 30 (after flow cytometry and consensus primer polymerase chain reaction 2CDA, P ⫽ .03 and P ⫽ .03, respectively) and day 90 (after (cpPCR) analysis of immunoglobulin receptors are now avail- rituximab, P ⫽ .03 and P ⫽ .03, respectively), compared with day able.31 Whether eradication of MRD as detected by flow cytometry 0 (before starting therapy). However, neither CD4 (P ⫽ .84) nor or cpPCR would lead to improvements in progression-free survival CD8 (P ⬎ .999) counts dropped significantly from day 30 to day (PFS) and overall survival (OS) is unclear. Furthermore, any agent 90 (by paired Wilcoxon tests) (Figure 2).
used for this purpose should have little additional associatedtoxicity. Rituximab has demonstrated efficacy in treating patientswith relapsed HCL and has been used successfully to treat patients with purine analog–resistant disease.18-21 The combination ofrituximab with nucleoside analogs has been associated with an Before the availability of the modern chemotherapeutic agents, increased incidence of neutropenia.24,32 However, rituximab has splenectomy was the standard therapy in patients with HCL and relatively low toxicity and is not associated with significant resulted in significant improvement in cytopenias. The introduction immunosuppression. We have demonstrated the efficacy of anextended course of rituximab in eradicating MRD in most patientswith HCL treated in this study. Whether such MRD eradicationcould be achieved with nucleoside analog therapy alone is unclear,although previous studies have demonstrated that a significantnumber of patients in CR have evidence of MRD. Wheaton et al30reported that 5 (13%) of 39 patients in CR 3 months after therapywith cladribine had evidence of disease by IHC. We used signifi-cantly more sensitive techniques and found that only 1 (8%) of 13patients had disease detectable by flow cytometry and only 1 (8%)of 12 patients had an equivocal PCR at 3 months after therapy. Asexpected, treatment with rituximab was not associated with addi-tional toxicity, and there was no significant decline in the absolutenumbers of CD4 and CD8 lymphocyte subsets after extendedtherapy with rituximab.
Despite its limited toxicity, financial considerations in a disease highly responsive to available therapy mandate the identification ofpatients at risk of relapse who would be candidates for additionaltherapy over nucleoside analogs alone. A different approach wouldbe to evaluate the marrow for MRD at 3 to 6 months after thecompletion of therapy with cladribine and administer monoclonalantibody only to those patients with evidence of MRD as has beendone by Cervetti et al.33 Alternatively, pretreatment features may beidentified that would predict the likelihood of relapse, therebyallowing selection of appropriate patients for additional therapy.
In most patients, the leukemic cells express mutated IgVH, suggesting their origin from a postgerminal center (GC) memory Bcell.34,35 Nevertheless, we as well as other investigators haveidentified a number of patients with HCL with unmutated IgVHgenes, suggesting a pre-GC origin.36 However, gene expressionprofiling experiments have not demonstrated the existence ofdifferent subsets of HCL, suggesting that HCL has a uniform Figure 2. Changes in lymphocyte subsets during therapy. Distribution of the (A)
phenotype.37 Furthermore, when compared with the gene expres- CD4 count and (B) CD8 count changes among day 0 (before starting therapy), day 30(after 2CDA), and day 90 (after rituximab).
sion profiles of purified normal B-cell populations, including those BLOOD, 15 JUNE 2006 䡠 VOLUME 107, NUMBER 12 of pre-GC (naive), GC, and post-GC (memory) B cells, the HCL more extended regimen (8 weekly doses versus 4) appears to be profile resembled that of memory B cells.37 The mutational status associated with an improvement in the number and quality of of IgVH did not influence the response to therapy in this cohort of responses.18 This was the rationale for the selection of 8 doses of patients. We have also identified 2 patients with deletion or rituximab in our study. However, no definitive statements about the mutation of p53, although they both responded to our regimen of adequate number of doses of rituximab to achieve effective MRD cladribine followed by rituximab. Whether the mutational status of eradication can be made.
IgVH or p53 abnormalities can predict those patients who will In conclusion, eradication of MRD in HCL using rituximab relapse needs a larger cohort with longer follow-up.
after therapy with nucleoside analogs is safe and feasible. Longer Another important consideration is the number of doses of follow-up and larger patient numbers are needed to determine rituximab that may be necessary for achieving disease eradication.
whether such eradication of MRD would translate to longer Previously reported studies of rituximab in HCL have been in the disease-free survival. Identification of predictors of relapse may setting of relapse.18-21 Although the numbers of patients in each allow the selection of patients who are most likely to benefit from study are small and a definitive comparison cannot be justified, a this extended regimen.
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Microsoft word - permar-tumorschmerztherapie_print-011201.doc

bei Erwachsenen Anleitung zur medikamentösen Tumorschmerztherapie (Überarbeitet von Dr. Beekhchand Permar) Pflegeinterventionen in der Schmerztherapie Herausgeber: Arbeitsgruppe Schmerztherapie im Onkologischen Zentrum Westpfalz für die Arbeitsgruppe: Prof. Dr. Ch. Madler, Anästhesiologie Prof. Dr. H. Link, Medizinische Klinik

Items not to be prescribed at T&G CCG expense (DNP list) or only in limited circumstances (Grey list) Please note that in addition to the items listed here there should be no prescribing of any medicine listed in Part XVIIIA (Black List) of the Drug Tariff or in the case of appliances any not listed in Part IX. of the Drug Tariff. There are a number of medications that T&G CCG believes should not be used (DNP List) or should only be used in limited circumstances (Grey List). Grey listed items wil only be funded for patients who meet the specified criteria. The reasons for medicines being included on the lists are as given in the tables below and in line with the GMMMG and national guidance.