ISSN 1866-8836
Клеточная терапия и трансплантация

Multicenter prospective escalation-deescalation PET-guided clinical study in classical type Hodgkin disease in the North-West of Russian Federation (RNWOHG-HD1): rationale and design

Study authors: Boris V. Afanasyev1, Ivan S. Moiseev1, Sergey M. Alekseev2, Natalia B. Mikhailova1, Elena V. Kondakova1, Nikolai V. Ilyin3, Alexey M. Belyaеv2 Chief scientifi c advisors: Boris V. Afanasyev1, Sergey M. Alekseev2, Ivan S. Moiseev1 Supervisory board: Alexey M. Belyaеv2, Andrey Yu. Zaritskey4, Nikolai V. Ilyin3, Natalia B. Mikhailova1,
Nadejda V. Medvedeva5, Georgii M. Manikhas6, Sergey V. Voloshin7, Vladimir M. Moiseenko8, Tatyana V. Shneider9
1R. Gorbacheva Memorial Institute of Hematology, Oncology and Transplantation, Pavlov First St. Petersburg State Medical University, St. Petersburg, Russian Federation
2Prof. N. N. Petrov Research Institute of Oncology, St. Petersburg, Russian Federation
3Central Research Institute of X-ray and Radiation Studies, Ministry of Health of the Russian Federation, St. Petersburg, Russia 4Oncohaematology Department, Almazov Federal Heart, Blood and Endocrinology Centre, St. Petersburg, Russia
5St. Petersburg City Hospital №31, St. Petersburg, Russian Federation
6St. Petersburg City Clinical Oncology Dispensary, St. Petersburg, Russian Federation
7Russian Research Institute of Hematology and Transfusiology, St. Petersburg, Russia
8St. Petersburg Oncological Center, St. Petersburg, Russia
9Leningrad District Clinical Hospital, St. Petersburg, Russia
doi 10.18620/ctt-1866-8836-2017-6-4-76-81

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Cellular Therapy and Transplantation (CTT)
Volume 6, Number 4


Currently there is no established standard of care for Hodgkin’s disease (HD) in Russian Federation (RF). The mortality from HD in RF is 28,3%, thus improvement of care is required. Here we describe the design and the rational for the fi rst cooperative prospective study in the Nort-West region of RF, RNWOHG-HD1. The key points of the protocol are discussed, including escalation from ABVD to BEACOPPesc in case of PET-positive disease aft er fi rst two cycles in the favorable prognosis group, and de-escalation to randomized ABVD/AVD in case of PET(-) status aft er fi rst two BEACOPPesc courses in the unfavorable prognosis group. The protocol also is planned to facilitate access to second and third line treatments, including brentuximab, as well as autologous and allogeneic stem cell transplantation.


Hodgkin’s disease, multicenter study, positron emission tomography (PET), RNWOHG-HD1.


Treatment of classical Hodgkin’s disease (HD) is one of the successful stories in hematology. Since the introduction of ABVD regimen in 1970s, the results of treatment are constantly improving [1]. Even only aft er ABVD regimen administered for advanced disease stages the overall survival in large patient cohorts is 78%, however freedom from disease is only 66% [2], indicating the need for high-dose chemotherapy for approximately 35% of patients. Th is led to development of more intensive protocols, like BECOPP [3], and subsequently BEACOPPescalated and BEACOPP14 [4] that produced failure-free-survival (FFS) of 85-89% in advanced HD. Nonetheless these intensifi ed approaches were associated with signifi cant incidence of secondary malignancies [5,6] as well as both male and female infertility [7]. This is the reason why several developed countries like the US, ABVD remains the standard of care for all disease stages [8].
The efforts to overcome the limitation of BEACOPP regimens were done aft er introduction of positron-emission tomography (PET) into clinical practice. It was demonstrated that PET status after two courses of chemotherapy strongly predict the outcome of treatment [9]. This finding was the foundation of several escalation studies [10,11] where absence of complete response led to switching therapy from ABVD to BEACOPPesc. Also several de-escalation studies were lunched, where complete response based on PET triggered change of therapy from BEACOPPesc to ABVD [12]. These two approaches were used as the basis for protocol development by Russian North West Oncology and Hematology Group (RNWOHG).
In Russian Federation around 3200 cases of HD are documented annually, which translates into 2.2 cases per 100000 people per year. Th e mortality from HD is 28,3% [13], which is significantly higher than reported in the foreign registry studies. Th ere might be several reasons for that: large distances between towns, poor excess to high-technology care, like second-line chemotherapy, autologous and allogeneic stem cell transplantation (auto and allo SCT), poor capabilities for supportive care in some of the oncology and hematology departments. In this study we wanted to solve several of these issues: coordinate the transfer of patients for the second line and to develop low toxicity protocol with relative high FFS aft er the fi rst line therapy.

Rationale and study design

The study upon diagnosis separates the patients into two groups: favorable prognosis and unfavorable prognosis. The definition of favorable is diff erent from the one of the German Hodgkin Study Group (GHSG). In this study presence stage IIB, large mediastinal mass, ESR more than 50 mm/h and IPS [2] more than 2 places a patient into unfavorable group, while stages I-IIA without these factors are considered favorable. Th e reason for that is the planned omission of radiotherapy in the PET(-) patients and truncation of therapy to 4 ABVD cycles in the group with partial response after two cycles. Th us we wanted to exclude the majority of patients who will fail this tapered therapy in the favorable arm (Fig. 1).
The treatment in the favorable arm includes two cycles of ABVD. Aft er that the therapy is selected based on the PET status. Patients with PET(-) CR go into follow up. This decision is based on the two studies: HD10 trial and NCIC CTG– ECOG HD.6 trial [14,15]. Th e fi rst study demonstrates that 2xABVD are equivalent two 4xABVD with subsequent radiation therapy and the second that radiation therapy could be omitted aft er 4xABVD. Th ese were not PET-guided studies. We believe that strict selection of good prognosis patients and verifi cation of PET(-) status before end of therapy will produce the same results as in these two studies. Patients achieving PET(+) partial response undergo subsequent 2xABVD courses and radiation therapy, which the standard approach for the low risk responding well to the chemotherapy, used for example in HD10 study [14]. Patients that will have less then partial response aft er 2xABVD are switched to 4xBEACOPPesc or 4xBEACOPP14 according investigator choice. The efficacy of this approach was tested in the study by Johnson et al. and Italian RATHL trial [10,16]. In these two trials the FFS was more than 70% in all risk and stage groups, thus in the favorable group the FFS is expected to be more than 80%. Th e omission of radiotherapy aft er 4xBEACOPPesc is based on GHSG HD12 trial, where there was no difference in FFS between radiotherapy and stop therapy groups [17]. In conclusion, based on the current data available the suggested approach should produce around 80-85% FFS in the favorable group.
The decision to leave BEACOPPesc or BEACOPP14 to an investigator choice is based on many consultations with participating centers. Several of them, which treat HD in inpatient setting were not willing to participate if there will be no option for BEACOPPesc, the other which predominantly treat HD in the outpatient setting were not willing to participate, if there will no option of BEACOPP14, because it is much better tolerated and could be reproduced in the outpatient facilities. In HD14 trial it was demonstrated that these two approaches are equivalent in terms of FFS [4].
Thus in the unfavorable group the therapy is started from 2xBEACOPPesc or 2xBEACOPP14 according investigator choice. In PET(-) patients the de-escalation to ABVD/AVD cycles is planned. Th is is based on HD12 study, where without PET guidance switch to 4xABVD from 4xBEACOPPesc was not compromising the results, on study by Aviqdor et al. [18], and on the randomized study by Johnson et al. where in PET (-) patients there was no diff erence between ABVD and AVD. Th is is the only randomization present in the study. The expected effi cacy of this approach is 85% FFS [10]. Patients who are PET(+) aft er two cycles continue BEACOPPesc/BEACOPP14 therapy up to 6 cycles. It is demonstrated in HD18 trial that the FFS is not compromised in PET(+) patients when they continued up to 8 BEACOPPesc courses [19]. In our study the therapy is limited two six cycles. This is based on the decision of opinion leaders from the participating centers. Radiation therapy is omitted aft er BEACOPPesc on the same basis as in the favorable arm of the study [17]. In conclusion, the unfavorable arm 1-st line is also expected to produce 80-85% FFS.
In the second line therapy four types of treatment is chosen by the investigator: DHAP, ICE, IGEV and brentuximab+ bendamustine (BB). There are no restrictions in the choice of therapy since there are no large prospective randomized trials addressing this issue [20]. For patients with primary IPS ≥4 and primary refractory disease the BB second line is recommended because the effi cacy of standard approach with autoSCT results only in 9% FFS in this group of patients, while BB protocol seems to induce higher proportion of complete responses [21-23]. The third line includes only BB re-induction and mandatory alloSCT from related, unrelated or haploidentical donor, whoever is available.


Statistical considerations and expected results

The study is completed with observation program which will include patients treated with conventional approaches in the participating centers. Thus it is planned to compare the results of this RNWOHG-HD1 with standard care in Russian Federation. The expected overall survival in the protocol is at least 85% and the estimated enrollment is 900 patients. Thus the study is expected to demonstrate the improvement in survival with 100% power and alpha=0.01.

HIV-infected patients

The RNWOHG-HD1 program has the sub-study for HIV-infected patients. Since BEACOPPesc is poorly tolerated in this population of patients and results in 7% mortality [24], all treatment in the fi rst line is based on ABVD courses with subsequent de-escalation to randomized ABVD/AVD cycles as in the general protocol (Figure 2). Th e 2nd and 3rd line therapies are identical to the general protocol. The protocol encourages the attending physicians to control the continuation of HAART therapy throughout the whole treatment process.



In conclusion, the study is expected to improve the treatment practices in one region of Russian Federation. It is also expected to answer the questions of possible truncation of therapy based on prognostic factors and interim PET-assessed response.


Th e study is supported by the unrestricted grant from Takeda Inc. and is managed by Aston Health, Moscow. Special thanks to Daria Pridatchina, Dmitrii Kosov and Sofi a Demura for the help in the development of the study and its electronic platform.

Financial Disclosure Statement

The authors have nothing to disclaim. Multicenter prospective escalation-de-escalation PET-guided clinical study in classical type Hodgkin disease in the Noth-Earst of Russian Federation (RNWOHG-HD1): rational and design.


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