Early-stage Favorable Hodgkin Lymphoma Research Articles

Revisiting the predictive role of 18F-fluorodeoxyglucose positron emission tomography/computerized tomography on treatment outcome in early-stage favorable Hodgkin lymphoma.

In the present manuscript Gallamini et al. comment the results of three large, phase III, randomized clinical trials in early-stage favorable Hodgkin Lymphoma (HL), aimed at exploring the non-inferiority of ABVD chemotherapy alone compared to combined-modality treatment with ABVD and Involved Field/Node Radiotherapy (INRT). The authors also report the preliminary results of risk-stratification in the first 60 enrolled patients in the phase 2, prospective, international study RAFTING: RAdiotherapy Free Treatment IN Good-prognosis early-stage HL (National Trial Identifier 04866654). In this trial patients are stratified, before treatment onset, according to the risk of therapy failure in a single patient basis, taking into account non only the results of interim and End-of-Therapy PET, but also the value of new metrics extracted from the baseline PET/CT such as the Large Nodal Mass (LNM) and Total Metabolic Tumor Volume (TMTV). Treatment intensity, consisting in ABVD chemotherapy, INRT and Nivolumab maintenance, is modulated on the presence/absence of the above factors, in a personalized-medicine approach. The most frequently detected factors driving treatment intensity were LNM and TMTV, while the results of interim and end-of-treatment PET were also determinant, albeit in a lower percentage of cases.

Cost-Effectiveness of PET Directed Versus Combined Modality Therapy for Early-Stage Favorable Hodgkin's Lymphoma.

The standard of care for early-stage Hodgkin Lymphoma (HL) is combined modality therapy (CMT) consisting of chemotherapy and involved site radiation therapy (ISRT). Recent treatment de-escalation trials have assessed the impact of omitting radiation with the use of positron emission tomography (PET) and have suggested a detriment in progression free survival (PFS) for patients who do not receive radiation therapy (RT) but similar overall survival. The purpose of this study was to compare the cost-effectiveness of PET-directed therapy versus standard of care CMT. This study used a cost-effectiveness Markov model simulating 5 year outcomes for 1 million patients with early-stage HL treated with either PET-directed therapy consisting of 2 cycles of ABVD chemotherapy ± ISRT or CMT consisting of 2 cycles of ABVD+ISRT. Patients progressed to no evidence of disease, progression of disease (PD), or death. Patients with PD underwent salvage therapy with high dose chemotherapy and stem cell transplant (HDC-SCT). The primary outcome measured was the incremental cost-effectiveness ratio. Deterministic sensitivity analyses were performed. We found that PET-directed therapy and CMT strategies were associated with costs of $47,362 and $41,167, respectively. The CMT strategy was equally as effective as the PET-directed therapy strategy with QALYs of 3.4. On 1-way sensitivity analyses, the model was most sensitive to CMT and HDC-SCT costs. Two-way sensitivity analyses showed the model was sensitive to the relative costs of these treatments. For patients with early-stage HL, CMT is the cost-effective strategy as compared with PET-directed therapy.

P024: Predictive Value of Baseline Metabolic Tumor Volume in Early-Stage Favorable Hodgkin Lymphoma – Data from the Prospective, Multicenter Phase III HD16 Trial

Background: 18F -fluorodeoxyglucose (FDG) positron emission tomography (PET) plays an important role in the staging and response assessment of lymphoma patients. Our aim was to explore the predictive relevance of metabolic tumor volume (MTV) and total lesion glycolysis (TLG) in patients with early stage Hodgkin lymphoma treated within the German Hodgkin Study Group HD16 trial. Methods: 18F-FDG PET/CT images were available for MTV and TLG analysis in 107 cases from the HD16 trial. We calculated MTV and TLG using three different threshold methods (SUV4.0, SUV41% and SUV140%L), and then performed receiver-operating-characteristic analysis to assess the predictive impact of these parameters in predicting an adequate therapy response with PET negativity after 2 cycles of chemotherapy. Results: All three threshold methods analyzed for MTV and TLG calculation showed a positive correlation with the PET response after 2 cycles chemotherapy. The largest area under the curve (AUC) was observed using the fixed threshold of SUV4.0 for MTV- calculation (AUC 0.69 [95% CI 0.55–0.83]) and for TLG-calculation (AUC 0.69 [0.55–0.82]). The calculations for MTV and TLG with a relative threshold showed a lower AUC: using SUV140%L AUCs of 0.66 [0.53–0.80] for MTV and 0.67 for TLG [0.54–0.81]) were observed, while with SUV41% an AUC of 0.61 [0.45–0.76] for MTV, and an AUC 0.64 [0.49–0.80]) for TLG were seen. Conclusions: MTV and TLG do have a predictive value after two cycles ABVD in early stage Hodgkin lymphoma, particularly when using the fixed threshold of SUV4.0 for MTV and TLG calculation.

Predictive value of baseline metabolic tumor volume in early-stage favorable Hodgkin Lymphoma – Data from the prospective, multicenter phase III HD16 trial

Background18F -fluorodeoxyglucose (FDG) positron emission tomography (PET) plays an important role in the staging and response assessment of lymphoma patients. Our aim was to explore the predictive relevance of metabolic tumor volume (MTV) and total lesion glycolysis (TLG) in patients with early stage Hodgkin lymphoma treated within the German Hodgkin Study Group HD16 trial.Methods18F-FDG PET/CT images were available for MTV and TLG analysis in 107 cases from the HD16 trial. We calculated MTV and TLG using three different threshold methods (SUV4.0, SUV41% and SUV140%L), and then performed receiver-operating-characteristic analysis to assess the predictive impact of these parameters in predicting an adequate therapy response with PET negativity after 2 cycles of chemotherapy.ResultsAll three threshold methods analyzed for MTV and TLG calculation showed a positive correlation with the PET response after 2 cycles chemotherapy. The largest area under the curve (AUC) was observed using the fixed threshold of SUV4.0 for MTV- calculation (AUC 0.69 [95% CI 0.55–0.83]) and for TLG-calculation (AUC 0.69 [0.55–0.82]). The calculations for MTV and TLG with a relative threshold showed a lower AUC: using SUV140%L AUCs of 0.66 [0.53–0.80] for MTV and 0.67 for TLG [0.54–0.81]) were observed, while with SUV41% an AUC of 0.61 [0.45–0.76] for MTV, and an AUC 0.64 [0.49–0.80]) for TLG were seen.ConclusionsMTV and TLG do have a predictive value after two cycles ABVD in early stage Hodgkin lymphoma, particularly when using the fixed threshold of SUV4.0 for MTV and TLG calculation.Trial registrationClinicalTrials.gov NCT00736320.

Radiotherapy update: current role of radiotherapy in the treatment of lymphomas

SummaryRadiotherapy (RT) remains an important modality in the modern treatment of lymphomas. In Hodgkin lymphoma (HL), its role is stage-dependent. In early stage favorable HL, RT is an essential component of combined treatment. In early unfavorable and advanced stage HL, RT can be omitted if patients are positron emission tomography-computed tomography (PET-CT) negative after chemotherapy. In non-Hodgkin lymphomas (NHL), RT can be used as definitive treatment of indolent lymphoma. In aggressive NHL, the role of RT is limited to consolidation therapy of bulky disease, extranodal involvement and in elderly patients. Overall, technology evolved from extended fields to involved-node (INRT) and involved-site radiotherapy (ISRT), with concurrent reduction in doses. This short review summarizes current evidence and provides a future outlook with regard to the role of RT in the treatment of lymphomas.

Is Radiation Therapy Cost-Effective in the Positron Emission Tomography/Computed Tomography Era for Early-Stage Favorable Hodgkin Lymphoma With Alternative Payment Models?

PurposeDespite multiple randomized trials, variation in practice remains regarding the most effective treatment for early-stage, favorable-risk Hodgkin lymphoma. With increasing emphasis on alternative payment models, we investigate the cost-effectiveness of chemotherapy alone versus combined modality therapy (CMT). Methods and MaterialsA Markov model was formed to compared 2 cycles of adriamycin, bleomycin, vinblastine, and dacarbazine (ABVD) to 2 cycles of ABVD followed by 20 Gy in 10 fractions involved-site radiation therapy. Modalities were compared using the incremental cost-effectiveness ratio, with effectiveness measured in quality-adjusted life years (QALYs) and evaluated with a willingness to pay a threshold of $100,000 per QALY gained. ResultsThe base case analysis showed that CMT is cost-effective compared with ABVD alone, with an incremental cost-effectiveness ratio of $8028 per QALY gained and an incremental cost of $236 gaining 0.029 QALYs. On sensitivity analyses, the results were the most sensitive to changes in recurrence rates. If the recurrence rate differences were ≥6%, CMT was cost-effective. ConclusionsCMT is a cost-effective strategy for early-stage, favorable-risk Hodgkin lymphoma based on currently available evidence. However, small variations in recurrence-rate estimates dramatically affect strategy cost-effectiveness.

PET-Guided Treatment in Patients with Early-Stage Favorable Hodgkin Lymphoma: Follow-up Analysis of the HD16 Trial By the German Hodgkin Study Group

PET-Guided Treatment in Patients with Early-Stage Favorable Hodgkin Lymphoma: Follow-up Analysis of the HD16 Trial By the German Hodgkin Study Group

Risk of cardiovascular events after combined modality therapy for early-stage favorable Hodgkin's lymphoma: Low but not zero

Risk of cardiovascular events after combined modality therapy for early-stage favorable Hodgkin's lymphoma: Low but not zero

Cost-Effectiveness of PET-Directed vs. Combined Modality Therapy for Early Stage Hodgkin Lymphoma

The standard of care for early-stage Hodgkin Lymphoma (HL) is combined modality therapy (CMT) consisting of chemotherapy and involved site radiation therapy (ISRT). Due to concerns that the combination of chemotherapy and radiotherapy is more harmful than chemotherapy alone, several trials have assessed the impact of omitting radiation with the use of positron emission tomography (PET). PET is considered useful in identifying patients at low risk for disease recurrence. These studies have suggested a detriment in progression free survival (PFS) for patients who do not receive ISRT but similar overall survival. The purpose of this study was to compare the cost-effectiveness of PET-directed therapy vs. standard of care CMT. This economic evaluation used a cost-effectiveness model simulating 5-year outcomes for 1 million patients with early-stage HL treated with either PET-directed therapy consisting of 2 cycles of Adriamycin, Bleomycin, Vincristine, and Dacarbazine (ABVD) +/- 20 Gy ISRT or CMT consisting of 2 cycles of ABVD + 20 Gy ISRT. Patients entered the model with early-stage favorable HL and received either PET-directed therapy or CMT. Patients progressed to no evidence of disease (NED), disease progression (DP), or death. Patients with DP underwent salvage therapy with high dose chemotherapy and stem cell transplant (HDC-SCT). Health utilities were obtained from published studies and transition probabilities were derived from the GHSG HD16 trial. Costs were obtained from the Healthcare Bluebook and 2019 National Medicare fee schedules. For the base case analysis, we assumed 3-dimensional conformal radiation treatment. Utilities and costs were discounted at 3% annually. The primary outcome measured was the incremental cost-effectiveness ratio (ICER); we defined the willingness-to-pay (WTP) threshold at $100,000 per quality-adjusted life-year (QALY). Deterministic sensitivity analyses were performed to assess for uncertainty around model parameters. We found that PET-directed therapy and CMT strategies were associated with costs of $42,536 and $37,931, respectively. The CMT strategy was slightly more effective than the PET-directed therapy strategy with QALYs of 2.947 and 2.945, respectively. As CMT was both less expensive and more effective as compared to PET-directed therapy, CMT was the dominant strategy. On one-way sensitivity analyses, the model was most sensitive to costs of ABVD, ISRT, and HDC-SCT salvage treatment. Three-way sensitivity analyses showed that the model was also sensitive to the relative costs of these treatments. For patients with early-stage favorable HL requiring definitive treatment, CMT is the cost-effective strategy as compared with PET-directed therapy. These results should be used to inform the ongoing debate regarding the role of ISRT and PET in the treatment of early-stage favorable HL.

Assessment of Radiation Doses Delivered to Organs at Risk Among Patients With Early-Stage Favorable Hodgkin Lymphoma Treated With Contemporary Radiation Therapy

Response-adapted randomized trials have used positron emission tomography-computed tomography to attempt to identify patients with early-stage favorable Hodgkin lymphoma (ESFHL) who could be treated with doxorubicin, bleomycin, vinblastine, and dacarbazine (ABVD) without radiation therapy (RT). While maximal efficacy is demonstrated with combined modality therapy, RT is often omitted in fear of late adverse effects; however, the application of modern RT could limit these toxic effects. To determine the radiation doses delivered to organs at risk with modern involved-site RT among patients with ESFHL treated with 20 Gy after 2 cycles of ABVD. This case series included 42 adult patients with ESFHL (according to the German Hodgkin Study Group criteria) who were treated between 2010 and 2019, achieved complete response by positron emission tomography-computed tomography (1-3 on 5-point scale) following 2 cycles of ABVD, and then received consolidative RT. The study was conducted at a single comprehensive cancer center. 2 cycles of chemotherapy followed by 20-Gy involved-site RT. The medical records of patients with ESFHL were examined. Organs at risk were contoured, and doses were calculated. Progression-free survival, defined from date of diagnosis to disease progression, relapse, or death, and overall survival were estimated using the Kaplan-Meier method. The cohort comprised 42 patients with ESFHL (median [range] age at diagnosis, 35 [18-74] years; 18 [43%] women; 24 [57%] with stage II disease). At a median follow-up of 44.6 (95% CI, 27.6-61.6) months, the 3-year progression-free survival and overall survival rates were 91.2% (95% CI, 74.9%-97.1%) and 97.0% (95% CI, 80.4%-99.6%), respectively. The mean heart dose was less than 5 Gy (mean, 0.8 Gy; SD, 1.5 Gy; range, 0-4.8 Gy) in all patients. The mean (SD) breast dose for both breasts was 0.1 (0.2) Gy (left breast range, 0-1.0 Gy; right breast range, 0-0.9 Gy). In this study, combined modality therapy with 2 cycles of ABVD and 20 Gy for ESFHL was highly effective and avoided excess doses to organs at risk, which may limit long-term toxic effects.

PET-Guided Treatment of Early-Stage Favorable Hodgkin Lymphoma: Final Results of the International, Randomized Phase 3 Trial HD16 by the GHSG

Combined modality treatment (CMT) consisting of two cycles of ABVD and 20 Gy of involved-field radiation therapy (IFRT) is widely accepted standard of care for early-stage favorable Hodgkin lymphoma (HL). Recent clinical research suggests that metabolic response assessment after two cycles of chemotherapy using FDG-PET (PET-2) can predict the individual outcome and PET-2 negativity might allow reducing the overall treatment intensity. In this study, we assessed whether omitting consolidating radiation therapy in patients with negative PET-2 is feasible without loss of efficacy as determined by progression-free survival (PFS). Furthermore, we analyzed the prognostic impact of PET-2 among patients receiving CMT. Between November 2009 and December 2015, we recruited patients with newly diagnosed, early-stage favorable HL aged 18–75 years from Germany, Switzerland, Austria, and the Netherlands for this double-blind, randomized, parallel-group phase 3 trial. Patients were randomly assigned to receive standard CMT with 2x ABVD and 20 Gy IFRT or PET-guided treatment, whereby IFRT was restricted to those patients with a positive PET after 2xABVD. A total of 1150 patients were enrolled; 628 patients with negative PET-2 were eligible for the per-protocol non-inferiority analysis and were treated with CMT (n=328) or ABVD alone (n=300). With a median follow-up of 47 months, the estimated 5-year PFS was 93.4% (90.4–96.5) with CMT and 86.1% (81.4–90.9) with chemotherapy only (difference 7.3%, 95% CI 1.6%–13.0%). The hazard ratio was 1.78 with a 95% CI ranging from 1.02 to 3.12, including the non-inferiority margin of 3.01. The PFS difference primarily resulted from a significant increase in disease recurrences with in-field recurrence rates of 2.1% vs. 8.7% (p=0.0003); there was no relevant difference regarding out-field recurrences (3.7% vs. 4.7%, p=0.55). Estimated 5-year overall survival in the per-protocol population was 98.1% (96.5–99.8) with CMT and 98.4% (96.5–100.0) with ABVD. Six hundred ninety-three patients assigned to receive CMT were eligible for the analysis of the PET objective and had a negative (n=353) or positive (n=340) PET-2. With a median follow-up of 46 months, estimated 5-year PFS was 93.2% (90.2–96.2) among PET-2-negative and 88.1% (83.8–92.3) among PET-2-positive patients (p=0.035). When using the more common liver cutoff (Deauville score 4) for the definition of PET-2 positivity, the difference became was more pronounced (5-year PFS 93.1% [90.7%–95.5%] vs. 80.1% [71.2%–88.9%], p=0.0004). In early-stage favorable HL, radiation therapy cannot be safely omitted from standard CMT without a clinically relevant loss of tumor control in patients with negative PET-2. PET positivity after 2xABVD represents a risk factor for PFS in HL patients treated with standard CMT, particularly when a Deauville score of 4 is considered as cutoff for positivity.

PET-Guided Treatment of Early-Stage Favorable Hodgkin Lymphoma: Final Results of the International, Randomized Phase 3 Trial HD16 By the German Hodgkin Study Group

Background. Combined modality treatment (CMT) consisting of two cycles of ABVD (doxorubicin, bleomycin, vinblastine, dacarbazine) and 20 Gy of involved-field radiotherapy (IFRT) is widely accepted standard of care for early-stage favorable Hodgkin lymphoma (HL). Recent clinical research suggests that metabolic response assessment after two cycles of chemotherapy using FDG-PET (PET-2) can predict the individual outcome and PET-2 negativity might allow reducing the overall treatment intensity.Aims. We assessed whether omitting consolidating radiotherapy in patients with negative PET-2 is feasible without loss of efficacy as determined by progression-free survival (PFS). Furthermore, we analyzed the prognostic impact of PET-2 among patients receiving CMT.Methods. Between November 2009 and December 2015, we recruited patients with newly diagnosed, early-stage favorable HL aged 18-75 years from Germany, Switzerland, Austria, and the Netherlands for this double-blind, randomized, parallel-group phase 3 trial. Patients were randomly assigned to receive standard CMT with 2x ABVD and 20 Gy IFRT or PET-guided treatment, whereby IFRT was restricted to those patients with a positive PET after 2xABVD. PET-2 was centrally assessed by a panel blinded towards the randomization result, with FDG uptake not higher than the mediastinal blood pool (i.e., Deauville score 1-2) defined as negative. The trial was designed to exclude inferiority of 10% or more in 5-year PFS of ABVD only compared with CMT in a per-protocol analysis among PET-negative patients, corresponding to a non-inferiority margin of 3.01 for the hazard ratio, and to detect a 5-year PFS difference of 5% or more between PET-2-positive and -negative patients receiving CMT, each with 80% power.Results. A total of 1150 patients were enrolled; 628 patients with negative PET-2 were eligible for the per-protocol non-inferiority analysis and were treated with CMT (n=328) or ABVD alone (n=300). With a median follow-up of 47 months, the estimated 5-year PFS was 93.4% (90.4-96.5) with CMT and 86.1% (81.4-90.9) with chemotherapy only (difference 7.3%, 95% CI 1.6%-13.0%). The hazard ratio was 1.78 with a 95% CI ranging from 1.02 to 3.12, including the non-inferiority margin of 3.01. The PFS difference primarily resulted from a significant increase in disease recurrences with in-field recurrence rates of 2.1% vs. 8.7% (p=0.0003); there was no relevant difference regarding out-field recurrences (3.7% vs. 4.7%, p=0.55). Estimated 5-year overall survival in the per-protocol population was 98.1% (96.5-99.8) with CMT and 98.4% (96.5-100.0) with ABVD.693 patients assigned to receive CMT were eligible for the analysis of the PET objective and had a negative (n=353) or positive (n=340) PET-2. With a median follow-up of 46 months, estimated 5-year PFS was 93.2% (90.2-96.2) among PET-2-negative and 88.1% (83.8-92.3) among PET-2-positive patients (p=0.035). When using the more common liver cutoff (Deauville score 4) for the definition of PET-2 positivity, the difference was more pronounced (5-year PFS 93.1% [90.7%-95.5%] vs. 80.1% [71.2%-88.9%], p=0.0004).Conclusion. In early-stage favorable HL, radiotherapy cannot be safely omitted from standard CMT without a clinically relevant loss of tumor control in patients with negative PET-2. PET positivity after 2xABVD represents a risk factor for PFS in HL patients treated with standard CMT, particularly when a Deauville score of 4 is considered as cutoff for positivity. DisclosuresGreil:Takeda: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; BMS: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Astra Zeneca: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Merck: Honoraria, Research Funding; Abbvie: Consultancy, Membership on an entity's Board of Directors or advisory committees; Janssen: Other: TRAVEL, ACCOMMODATIONS, EXPENSES; Amgen: Honoraria, Other: TRAVEL, ACCOMMODATIONS, EXPENSES, Research Funding; Sandoz: Honoraria, Research Funding; MSD: Honoraria, Research Funding; Novartis: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Roche: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding; Celgene: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Research Funding. von Tresckow:MSD: Honoraria, Other: Travel support, Research Funding; Novartis: Honoraria, Other: Travel support, Research Funding; Takeda: Honoraria, Other: Travel support, Research Funding. Borchmann:Novartis: Consultancy, Honoraria.

More Chemotherapy Does Not Obviate the Need for Radiation Therapy (RT): Treatment for Early-Stage Favorable Hodgkin Lymphoma According to the HD10 Trial Compared With Chemotherapy Alone

More Chemotherapy Does Not Obviate the Need for Radiation Therapy (RT): Treatment for Early-Stage Favorable Hodgkin Lymphoma According to the HD10 Trial Compared With Chemotherapy Alone

Bleomycin in older early-stage favorable Hodgkin lymphoma patients: analysis of the German Hodgkin Study Group (GHSG) HD10 and HD13 trials

AbstractDoxorubicin, bleomycin, vinblastine sulfate, and dacarbazine (ABVD) is associated with severe toxicity in older patients, particularly from bleomycin-induced lung toxicity (BLT). Therefore, using bleomycin has been questioned in older Hodgkin lymphoma (HL) patients, especially in early-stage HL. We therefore analyzed feasibility, toxicity, and efficacy of ABVD or AVD in 287 older early-stage favorable HL patients. We included patients ≥60 years of age in the German Hodgkin Study Group HD10 and HD13 trials randomized to either 2 cycles of ABVD (2×ABVD; n = 137) or AVD (2×AVD; n = 82), each followed by involved-field radiotherapy (IF-RT), with patients randomized to 4×ABVD+IF-RT (n = 68). Patients' median age was 65 years (range, 60-75) with comparable patient and disease characteristics. Grade III-IV adverse event rates were similar in patients receiving 2×AVD and 2×ABVD (40% and 39%, respectively), but considerably higher in patients receiving 4×ABVD (65%). Similarly, BLT was rare in patients receiving 2×ABVD/AVD, but occurred in 7/69 (10%) of patients randomized to 4×ABVD, with 3 lethal events. In conclusion, no effects of bleomycin on toxicity rates were detectable in older patients receiving 2 cycles of chemotherapy. However, we found a high risk of severe toxicity of bleomycin in older HL patients receiving more than 2 cycles of ABVD. These trials are registered at www.clinicaltrials.gov and www.isrctn.com as #NCT00265018 (HD10) and #ISRCTN63474366 (HD13).

Primary Progressive Disease in Hodgkin Lymphoma Patients: A Retrospective Analysis from the German Hodgkin Study Group

Background: Primary progressive disease still remains an unmet medical need in Hodgkin Lymphoma (HL). Due to missing data on treatment effects and survival there is no established standard of care. We thus performed a retrospective analysis using the German Hodgkin Study Group (GHSG) database to improve the knowledge on the course of primary progressive HL patients.Methods: Patients aged between 18 and 60 years treated within the GHSG first-line trials HD13-HD15 were screened for primary progressive HL. Primary progression was defined as progressive disease during ongoing therapy, within 3 months after the end of treatment, or up to 6 months after the end of treatment in patients with partial response or stable disease in the final restaging. We investigated types and outcome of second-line treatment approaches and overall survival, which was calculated from first diagnosis of HL (OS) and from diagnosis of first progression or relapse (OSp).Results: We analyzed 5,126 patients, of whom 112 (2.2%) were identified with primary progressive disease. Of those, 62 (55%) patients had initially been treated for advanced-stage HL with BEACOPP (bleomycin, etoposide, doxorubicin, cyclophosphamide, vincristine, procarbazine, and prednisone) variants, 30 (27%) for early-stage unfavorable HL with ABVD (doxorubicin, bleomycin, vinblastine, and dacarbazine)- or BEACOPP-like regimens (24 and 6 patients, respectively) and 20 (18%) for early-stage favorable HL with ABVD variants. The median age at the time of progression was 33 years.3 patients (3%) died before a salvage therapy was started. Second-line treatment strategies included reinduction with intensified salvage regimens (77%), conventional chemotherapy (14%), and radiotherapy (8%). Autologous stem cell transplantation (ASCT) was performed in 76% of the patients who had received intensified reinduction chemotherapy, and allogeneic stem cell transplantation in ten (9%) patients. After the first salvage therapy, 42% of all patients achieved a complete remission (CR) and did not require further treatment. In total, 66% of the patient cohort achieved a CR after one or more second-line approaches. Median duration of the first CR was 61 months.After a median observation time of 7 years, 55 of the patients with primary progressive disease (49%) had died, mostly from progressive or relapsed HL (n=36) or toxicity of salvage treatment (n=10). The majority of the 57 survivors was in CR at the time of analysis; 2 were under treatment for HL and there was no information available for one patient. Median OSp for the entire cohort was 83 months, 5-year OSp was 55.4% (95%-CI, 46% to 65%). Since OSp differed among patients of different initial stages and types of pre-treatment (early-stage favorable and unfavorable patients treated with ABVD variants, OSp 74.2% [61%-87%] vs. higher-stage patients treated with BEACOPP variants, OSp 42.9% [31% - 55%]), treatment groups were analyzed for survival separately. In both groups, patients responding to the first salvage therapy had a significantly better OSp compared to those not responding (each p<0.001). OS was significantly worse in patients with primary progressive disease when compared to the complementary study cohort in both treatment groups (each p<0.001). When comparing patients with primary progressive disease with those patients with a relapse of HL (n=272), there were significant advantages of the latter regarding OS and OSp within the BEACOPP-pre-treated subgroup (each p<0.001). In patients pre-treated with ABVD variants, there was also a significant difference in OS (p=0.007), but no detectable difference regarding OSp (5-year OSp 74% vs. 78%, p=0.3).Conclusion: Overall, the 5-year OSp in this unselected patient cohort of primary progressive HL patients is encouraging and supports the use of aggressive salvage regimens and consolidating high-dose chemotherapy in general. However, this approach is known to induce severe long-term toxicities and has limited efficacy in patients failing first-line treatment for advanced stage disease. We conclude that there is a need to develop different treatment approaches in primary progressive HL patients. Disclosuresvon Tresckow:Novartis: Consultancy, Other: Travel and accomodation, Research Funding; Amgen: Other: honoraria for preparation of scientific educational events; Celgene: Other: honoraria for preparation of scientific educational events; Takeda: Consultancy. Zijlstra:Celgene: Consultancy; Roche: Consultancy. Topp:Astra: Consultancy; Regeneron: Consultancy; Affimed: Consultancy, Research Funding; Roche: Consultancy, Other: Travel Support; Jazz: Consultancy; Pfizer: Consultancy; Amgen: Consultancy, Honoraria, Other: Travel Support. Engert:Takeda: Consultancy, Research Funding. Borchmann:Millennium: Research Funding.

Omission of dacarbazine or bleomycin, or both, from the ABVD regimen in treatment of early-stage favourable Hodgkin's lymphoma (GHSG HD13): an open-label, randomised, non-inferiority trial

The role of bleomycin and dacarbazine in the ABVD regimen (ie, doxorubicin, bleomycin, vinblastine, and dacarbazine) has been questioned, especially for treatment of early-stage favourable Hodgkin's lymphoma, because of the drugs' toxicity. We aimed to investigate whether omission of either bleomycin or dacarbazine, or both, from ABVD reduced the efficacy of this regimen in treatment of Hodgkin's lymphoma. In this open-label, randomised, multicentre trial (HD13) we compared two cycles of ABVD with two cycles of the reduced-intensity regimen variants ABV (doxorubicin, bleomycin, and vinblastine), AVD (doxorubicin, vinblastine, and dacarbazine), and AV (doxorubicin and vinblastine), in patients with newly diagnosed, histologically proven, classic or nodular, lymphocyte predominant Hodgkin's lymphoma. In each treatment group, 30 Gy involved-field radiotherapy (IFRT) was given after both cycles of chemotherapy were completed. From Jan 28, 2003, patients were centrally randomly assigned (1:1:1:1) with a minimisation method to the four groups. Because of high event rates, assignment to the AV and ABV groups stopped early, on Sept 30, 2005, and Feb 10, 2006; assignment to ABVD and AVD continued (1:1) until Sept 30, 2009. Our primary objective was to show non-inferiority of the experimental variants compared with ABVD in terms of freedom from treatment failure (FFTF), by excluding a difference of 6% after 5 years corresponding to a hazard ratio (HR) of 1.72, via a 95% CI. Analyses reported here include qualified patients only, and between-group comparisons include only patients recruited during the same period. The trial was registered, number ISRCTN63474366. Of 1502 qualified patients, 566, 198, 571, and 167 were randomly assigned to receive ABVD, ABV, AVD, or AV, respectively. 5 year FFTF was 93.1%, 81.4%, 89.2%, and 77.1% with ABVD, ABV, AVD, and AV, respectively. Compared with ABVD, inferiority of the dacarbazine-deleted variants was detected with 5 year differences of -11.5% (95% CI -18.3 to -4.7; HR 2.06 [1.21 to 3.52]) for ABV and -15.2% (-23.0 to -7.4; HR 2.57 [1.51 to 4.40]) for AV. Non-inferiority of AVD compared with ABVD could also not be detected (5 year difference -3.9%, -7.7 to -0·1; HR 1.50, 1.00 to 2.26). 178 (33%) of 544 patients given ABVD had WHO grade III or IV toxicity, compared with 53 (28%) of 187 given ABV, 142 (26%) of 539 given AVD, and 40 (26%) of 151 given AV. Leucopenia was the most common event, and highest in the groups given bleomycin. Dacarbazine cannot be omitted from ABVD without a substantial loss of efficacy. With respect to our predefined non-inferiority margin, bleomycin cannot be safely omitted either, and the standard of care for patients with early-stage favourable Hodgkin's lymphoma should remain ABVD followed by IFRT. Deutsche Krebshilfe and Swiss State Secretariat for Education and Research.

Doxorubicin, Vinblastine and Dacarbazine with or without Bleomycin for Older Patients with Early Stage Favorable Hodgkin Lymphoma: An Analysis of the German Hodgkin Study Group (GHSG) HD10 and HD13 Trials

IntroductionBleomycin is commonly omitted from the ABVD regimen (doxorubicine, vinblastine, dacarbazine and bleomycin) in older Hodgkin Lymphoma (HL) patients due to excessive toxicity, particularly bleomycin-induced lung toxicity (BLT). Very recently, however, the GHSG HD13 trial indicated that the omission of bleomycin from the ABVD regimen has a negative impact on efficacy (Behringer et al., EHA 2014). Given the high rate of BLT in older patients, the role of bleomycin in the ABVD regimen for this particular group of patients is still unclear. We therefore analyzed feasibility, toxicity and efficacy of ABVD or AVD in 287 older early stage favorable HL patients.MethodsAs described in detail previously elsewhere, HD10 and HD13 were prospective, randomized international multicenter trials including early stage favorable HL patients defined as stages I and II without any of the GHSG risk factors (Engert et al. NEJM 2010). For the present study, we focused on older HL patients (≥60 years), who were randomized to receive either 2 cycles ABVD (2 x ABVD) or AVD, in both cases followed by either 20 or 30 Gy involved-field radiotherapy (IF-RT). To estimate cumulative BLT, we also analyzed older HL patients who received 4 x ABVD followed by IF-RT in the HD10 trial.Results287 patients with a median age of 65 years (range 60-75) were included with an equal distribution of gender, IPS scores, histology and age between the treatment groups.Treatment consisted of 2 x ABVD in 137 patients (HD10 and HD13), 2 x AVD in 82 patients (HD13), and 4 x ABVD in 68 patients (HD10). Pulmonary function test (PFT) prior to therapy was available for 117 patients (HD13 only) showing impaired PF in 14 (26%) and 9 (15%) of the patients randomized to receive ABVD or AVD, respectively.Although patient numbers were too small to draw statistically sound conclusions, in our analysis, patients treated with AVD tended to receive higher relative dose intensity than patients treated with 2 x ABVD. Early termination of chemotherapy was only observed in 1 patient of each treatment arm.Overall, frequency of grade III-IV adverse events was similar for both patient groups. Respiratory adverse events were rare even in patients receiving 2 cycles of bleomycin (1 and 0 cases with 2 x ABVD and AVD, respectively). However, BLT occurred in 6 patients (9%) receiving 4 cycles ABVD and was lethal in half of the affected patients. PFTs or (chest x-ray) within two years after therapy were available for 80 HD13 patients and showed pathological results for 2 patients each out of 34 and 46 patients treated with 2 x ABVD or AVD, respectively.Regarding the efficacy, patient numbers were far too small for testing on (non-)inferiority of the AVD regimen as done in the HD13 trial. However, differences in PFS and OS were about the same magnitude as observed in the HD13 trial (Behringer et al., submitted), indicating that the effect of bleomycin on efficacy observed in this trial does also hold true for the subgroup of older patients.ConclusionIn this study of 219 older early stage favorable HL patients treated with 2 cycles of either ABVD or AVD, no significant effect of bleomycin on the incidence and severity of adverse events was detectable. In contrast, the additional 67 older patients receiving 4 x ABVD had more grade III/IV toxicity and a strikingly higher rate of BLT, indicating a cumulative toxicity of bleomycin in older HL patients. DisclosuresOff Label Use: Everolimus in relapsed or refractory Hodgkin Lymphoma. von Tresckow:Novartis: Honoraria, Research Funding; Takeda: Honoraria, Travel grants, Travel grants Other. Borchmann:Takeda: Honoraria, Research Funding, Travel grants Other.

Guidelines for the first line management of classical Hodgkin lymphoma

The guideline group was selected to be representative of UK-based medical experts and patients’ representatives. MEDLINE and EMBASE were searched systematically for publications in English from January 1990 to June 2013 using the key words Hodgkin, Lymphoma, Treatment, Chemotherapy and Radiotherapy. References from relevant publications were also searched. The writing group produced the draft guideline, which was subsequently revised by consensus by members of the Haemato-Oncology Task Force of the British Committee for Standards in Haematology (BCSH). The guideline was then reviewed by a sounding board of approximately 50 UK haematologists and the BCSH and comments incorporated where appropriate. The ‘GRADE’ system was used to quote levels and grades of evidence, details of which can be found in Appendix I. The objective of this guideline is to provide healthcare professionals with clear guidance on the management of patients with classical Hodgkin Lymphoma (HL). The guidance may not be appropriate for all patients with HL and in all cases individual patient circumstances may dictate an alternative approach.

XVII. Radiotherapy in early stage Hodgkin lymphoma

The treatment of patients with Hodgkin lymphoma (HL) is one of the major success stories in oncology and 60–90% of patients are cured of their malignancy depending on clinical stage and risk factors. Radiotherapy was used to cure patients with HL as early as the 1940s, but more widespread successes came in the 1960s for early stage diseases I A and II A with the use of extended field radiotherapy (RT) techniques to include all nodal stations above the diaphragm such as the ‘mantle’ field [1]. Recurrence of disease outside the radiation field in some patients led to studies of adjuvant chemotherapy as part of a combined modality approach. These studies led to improved progression free survival (PFS) but no overall survival (OS) advantage was seen over RT alone because patients developing recurrent disease after RT were very efficiently salvaged by chemotherapy [2]. A sequential and thorough approach in large randomized trials exemplified by the German Hodgkin Study Group (GHSG) has led to substantial treatment reduction and established a standard of care based on minimal highly effective combined modality treatment (CMT). With a median follow-up of 7.5 years, 8-year results of the GHSG HD10 trial involving 1370 patients with early stage favourable HL showed that two cycles of chemotherapy regimen consisting of Adriamycin, Cyclophosphamide, Oncovin, Procarbazine, Prednisolone (ABVD) and 20Gy of involved field radiotherapy (IFRT) were as effective as four cycles ABVD and 30 Gy, produced less immediate toxicity and resulted in an OS of 95% and freedom from treatment failure and event-free survival of 86% [3]. For early stage unfavourable HL, moderate dose escalation using a chemotherapy regimen consisting of Bleomycin, Etoposide, Adriamycin, Cyclophosphamide, Oncovin, Procarbazine and Prednisone (BEACOPP) did not significantly improve outcome over four cycles of ABVD and 30 Gy IFRT, which the GHSG HD11 concluded remains the standard of care [4] Whilst efforts to improve a 5-year Failure From Treatment Failure (FFTF) of 85% and OS of 94.5% are ongoing in unfavourable disease, it will be difficult to improve the results of two cycles of ABVD and 20 Gy for the favourable

Two Cycles of ABVD Followed by Involved Field Radiotherapy with 20 Gray (Gy) is the New Standard of Care in the Treatment of Patients with Early Stage Hodgkin Lymphoma: Final Analysis of the Randomized German Hodgkin Study Group (GHSG) Trial HD10

There has been continuous discussion about the best treatment for patients with early favorable Hodgkin lymphoma (HL). Open questions included the choice between combined modality treatment and chemotherapy only, the number of chemotherapy cycles needed and the optimal radiation dose. The GHSG thus conducted a randomized study for patients with early-stage favorable Hodgkin lymphoma (HD10) which addressed these questions were.